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Patent Information & Production OptionsStorage-Type Ratchet Wrench with Foldable Tool Bodies and Internal Bit Compartment · Patent CN206689990U

Patent CN206689990U: bibliographic data, legal status, family, a plain-language reading of the claims, plus customization, US compliance points and how a manufacturing project runs.

At a glance

Patent numberCN206689990U (application CN201720375856)
TypeChina utility model (实用新型) - protects product shape and structure
Original titleA kind of storage type dismantling device (一种储藏式拆装工具)
Patent ownerSHAOXING HUANZHOU TOOL MANUFACTURING Co Ltd
InventorsWang Boyong
Filing date2017-04-11
Grant date2017-12-01
Status (China)Lapsed - terminated for non-payment of annual fees (recorded 2023-03-17)
Patent familyChinese filings only - no US, European, Japanese, PCT or other filings listed
Cited by2 later documents
SourceGoogle Patents (search for CN206689990U)

What the claims cover, in plain language

Claim 1 describes a storage-type dismantling device comprising a mounting bracket, at least one tool body rotatably installed on the bracket, and a positioning sliding block slidably mounted in the middle of the bracket. The tool body has a connecting seat with a head positioning portion and at least one side locating section. The sliding block has an end locating section that mates with either the head or side portion to lock the tool body. The bracket consists of two parallel seat boards with longitudinal slide grooves on their inner sides for the sliding block, and transverse pin-and-holes at both ends acting as hinges for the tool body.

Claim 2 adds a slider containment chamber to the positioning sliding block, featuring a breach at the bottom to allow the tool body’s tail end to enter and exit the chamber. Claim 3 specifies that the mating between the sliding block and the connecting seat portions uses an interference-fit plug-socket structure. Claim 4 states the tool body includes a ratchet wheel body, with the connecting seat at its head and a tool head at its tail. Claim 5 details the connecting seat as a box and a clamping lid forming an assembly to store tool heads, with a ratchet wheel body installation portion at the box’s tail. Claim 6 lists the ratchet wheel components: a fluted disc, adjusting ring, cross-arm, spring one, spring two, ratchet shaft, stage clip (compression spring), and steel ball. It describes how the adjusting ring’s plectrum interacts with the cross-arm and how the steel ball sits between the stage clip and the adjusting ring’s locating slots. Claim 7 describes a cross-arm groove on the ratchet shaft tail for installing the cross-arm, with spring eyes at both ends for the springs.

This is a simplified reading for orientation only. The legal scope is defined by the exact claim wording in the official Chinese document.

What this means for US production

This patent was filed only in China and is lapsed (terminated for non-payment of annual fees, recorded 2023-03-17), so it no longer restricts anyone in China either. It has no US or other foreign counterpart.

Two points to settle early:

  • Other patents may exist. Folding multi-tools and ratchet mechanisms are heavily patented categories, with numerous active US patents covering hinge locks, internal bit storage, and ratchet pawl designs held by major hand tool manufacturers. A freedom-to-operate (FTO) review of the sliding block lock, the connecting seat storage chamber, and the specific ratchet arrangement is needed before tooling.
  • Torque rating and hinge strength. The dimensions of the hinge pins, the thickness of the mounting bracket seat boards, and the interference fit of the sliding block determine how much torque the deployed tool body can withstand before failing. These parameters must be confirmed on prototypes.

Customization and manufacturing

What can be customized

AreaOptions
Number of tool bodiesOne or two, mounted at opposite ends of the bracket
Drive sizeAbout 1/4-inch or 3/8-inch square drive, or hex-bit receptacle; to be confirmed in design
Stored tool headsQuantity and types (hex, Torx, Phillips, slotted) sized to fit the connecting seat box
MaterialsCarbon steel, stainless steel, or chrome vanadium for the ratchet and bracket
FinishNickel plating, black oxide, powder coating on the bracket
Handle gripsOvermolded TPR or plastic sleeves on the mounting bracket seat boards

Things to plan for (US market)

  • ASME B107.110 - performance standard for socket wrench handles, including ratchets; US industrial buyers often ask for proof-torque results on the ratchet and fluted disc.
  • California Prop 65 - chrome plating on the ratchet parts and any PVC or rubber grip compound need a lead and phthalate check before a warning-free listing.

How a project runs

  1. Inquiry - define the number of tool bodies, drive sizes, stored bit types, materials, and target quantity.
  2. Design - engineer the mounting bracket profiles, hinge pin tolerances, sliding block geometry, and connecting seat box/lid snap fit.
  3. Prototype - machine samples to test the interference fit of the slider lock, the ratchet engagement, and the storage capacity.
  4. Pilot run - stamp and form the bracket, machine the ratchet components, mold the lids, and assemble a batch for torque and cycle testing.
  5. Production - progressive die stamping for the bracket, CNC machining or MIM for the ratchet internals, injection molding for the lids, finishing, and final assembly.

Quantities & timeline

The mounting bracket requires progressive stamping dies tailored to its length and profile. The ratchet internals (fluted disc, adjusting ring, ratchet shaft) demand precision machining or metal injection molds. The connecting seat box and lid require their own tooling if formed from sheet metal or molded from polymer. Torque testing of the hinge pins and sliding block lock dictates the validation phase. Send us your drive sizes, number of tool bodies, material preferences, stored bit count, quantity and target price and we will reply with options.

Patent drawings

Storage-Type Ratchet Wrench with Foldable Tool Bodies and Internal Bit Compartment - Patent Fig. 1
Fig. 1 - Exploded schematic representation of the storage type dismantling device.
Storage-Type Ratchet Wrench with Foldable Tool Bodies and Internal Bit Compartment - Patent Fig. 2
Fig. 2 - Schematic diagram of the device shown in Fig. 1 rotated 180 degrees.
Storage-Type Ratchet Wrench with Foldable Tool Bodies and Internal Bit Compartment - Patent Fig. 3
Fig. 3 - Schematic diagram of a tool head mounting rod.
Storage-Type Ratchet Wrench with Foldable Tool Bodies and Internal Bit Compartment - Patent Fig. 4
Fig. 4 - Schematic diagram of the fluted disc.
Storage-Type Ratchet Wrench with Foldable Tool Bodies and Internal Bit Compartment - Patent Fig. 5
Fig. 5 - Schematic diagram of the adjusting ring.
Storage-Type Ratchet Wrench with Foldable Tool Bodies and Internal Bit Compartment - Patent Fig. 6
Fig. 6 - Schematic diagram of the cross-arm.
Storage-Type Ratchet Wrench with Foldable Tool Bodies and Internal Bit Compartment - Patent Fig. 7
Fig. 7 - Schematic diagram of the ratchet shaft.
Storage-Type Ratchet Wrench with Foldable Tool Bodies and Internal Bit Compartment - Patent Fig. 8
Fig. 8 - Schematic diagram of the ratchet shaft shown in Fig. 7 rotated 180 degrees.
Storage-Type Ratchet Wrench with Foldable Tool Bodies and Internal Bit Compartment - Patent Fig. 9
Fig. 9 - Schematic diagram of the connecting seat box.
Storage-Type Ratchet Wrench with Foldable Tool Bodies and Internal Bit Compartment - Patent Fig. 10
Fig. 10 - Rear schematic view of the connecting seat box shown in Fig. 9.
Storage-Type Ratchet Wrench with Foldable Tool Bodies and Internal Bit Compartment - Patent Fig. 11
Fig. 11 - Schematic diagram of the connection flap.
Storage-Type Ratchet Wrench with Foldable Tool Bodies and Internal Bit Compartment - Patent Fig. 12
Fig. 12 - Additional component schematic.
Storage-Type Ratchet Wrench with Foldable Tool Bodies and Internal Bit Compartment - Patent Fig. 13
Fig. 13 - Additional component schematic.
Storage-Type Ratchet Wrench with Foldable Tool Bodies and Internal Bit Compartment - Patent Fig. 14
Fig. 14 - Additional component schematic.
Storage-Type Ratchet Wrench with Foldable Tool Bodies and Internal Bit Compartment - Patent Fig. 15
Fig. 15 - Additional component schematic.
Storage-Type Ratchet Wrench with Foldable Tool Bodies and Internal Bit Compartment - Patent Fig. 16
Fig. 16 - Additional component schematic.
Storage-Type Ratchet Wrench with Foldable Tool Bodies and Internal Bit Compartment - Patent Fig. 17
Fig. 17 - Additional component schematic.
Storage-Type Ratchet Wrench with Foldable Tool Bodies and Internal Bit Compartment - Patent Fig. 18
Fig. 18 - Additional component schematic.
Storage-Type Ratchet Wrench with Foldable Tool Bodies and Internal Bit Compartment - Patent Fig. 19
Fig. 19 - Additional component schematic.
Storage-Type Ratchet Wrench with Foldable Tool Bodies and Internal Bit Compartment - Patent Fig. 20
Fig. 20 - Additional component schematic.
Storage-Type Ratchet Wrench with Foldable Tool Bodies and Internal Bit Compartment - Patent Fig. 21
Fig. 21 - Additional component schematic.
Storage-Type Ratchet Wrench with Foldable Tool Bodies and Internal Bit Compartment - Patent Fig. 22
Fig. 22 - Additional component schematic.
Storage-Type Ratchet Wrench with Foldable Tool Bodies and Internal Bit Compartment - Patent Fig. 23
Fig. 23 - Additional component schematic.

Drawings reproduced from the public patent document for reference.

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This page is based on the public patent document CN206689990U, assigned to SHAOXING HUANZHOU TOOL MANUFACTURING Co Ltd. IP2M is an independent manufacturing service and is not affiliated with, endorsed by or licensed by the patent owner. Images marked as concept renderings are illustrations, not photos of an existing product. Patent status information is provided for reference only and is not legal advice; confirm freedom to operate for your market before production. Full disclaimer.