Patent CN216494520U
Updated November 2, 2026Foldable and Detachable Baby Tableside Dining Chair with Spring-Pin Frame
Most portable high chairs still need a bag or a car trunk corner because their frames fold but never come apart. This design separates completely: the single crossbar slides out of both side brackets once its spring pins are pressed, leaving three slim pieces that stack flat. On the table, each bracket grips the edge like a clamp - one bar sits on the surface, a U-shaped arm reaches down and back under it, and a threaded telescopic rod jacks up against the underside so the same chair fits a thin folding table or a thick solid-wood one. Protective sleeves and a wide anti-slip pad keep the metal off the finish.
- China utility model - in force
- No filings outside China
- Spring-pin quick-release frame
- U-shaped table-edge clamps with telescopic rods

Splat! What let you down?
🔓
Three-part take-down
Press two spring pins and the crossbar slides free of both brackets - no tools, no folding hinges.
🦵
U-shaped edge clamps
Each bracket grips the table from above and below, hugging the corner without screws or adhesive pads.
📏
Telescopic table-height fit
A threaded extension rod adjusts to the underside of thin or thick tabletops.
🛡️
Finish-safe contact points
Sleeves plus a wide anti-slip pad with tooth marks isolate the metal from the table surface.
Bring this product to market
- ✓ Patent vetted China-only family and legal status checked
- 2 Product brief · now How it works, uses and options written up
- 3 Prototype First samples for buyers to review
- 4 Pilot run Small first batch for launch customers
- 5 Volume production Repeat orders at scale
Buyer interest
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The problem
Tableside seats let a baby eat at the family table instead of in a bulky standalone high chair, but they usually stay assembled all year: folded frames still take up real storage space, live behind doors, and scratch lacquered or glass tabletops where clamps press hard. Screw-mounted rail seats damage furniture and lock the chair to one table. Buyers want something that grips firmly today, leaves no mark, and disappears completely tomorrow.
The solution
- A seat portion (1) mounts on a main body frame (2); the frame carries the seat and connects to the table.
- The frame splits into two mounting brackets (21) and one connecting rod (22). Both brackets clamp onto the table’s edge, and the rod spans between them holding the seat.
- At each end the rod carries a spring pin (221); each bracket has a matching snap hole (214). Press the pin, insert the rod, release - the pin passes through the hole and locks the assembly.
- Each bracket is built from a fixing rod (211) resting on the tabletop and a U-shaped force-applying rod (212) whose lower arm hooks under the table edge.
- An extension rod (213) on the crossbar turns up and presses against the table’s underside, adapting to different board thicknesses.
- Protective sleeves (215) and a wide pad part (216) with tooth marks sit at every contact point with the table.

Who it is for
- Baby-gear brands adding a space-saving tableside line next to standalone high chairs.
- Amazon sellers shipping small, light kits - three flat parts pack far tighter than any folding frame.
- Travel and rental providers who move seats between homes and need tool-free setup on any table.
- Restaurant and café owners fitting a few tables for families without buying fixed equipment.
How it works
The main parts

| No. | Part | What it does |
|---|---|---|
| 1 | Seat portion | Where the baby sits; mounts on the frame. |
| 2 | Main body frame | Connecting rod + two brackets; attaches to the table. |
| 21 | Mounting brackets (×2) | Clamp the table edge; hold the rod ends. |
| 22 | Connecting rod | Spans the brackets; carries the seat. |
| 221 / 214 | Spring pin / snap hole | Tool-free plug-in lock between rod and brackets. |
| 211 | Fixing rod | Sits on the tabletop; connects to the rod. |
| 212 | Force-applying rod | U-shape wrapping under the table edge. |
| 2121/2122/2123 | Vertical rods + cross bar | Form the U; arc transitions soften corners. |
| 213 | Extension rod | Threaded jack pressing up on the table underside. |
| 2131/2132/2133 | Fixed / connecting / abutment parts | Swivel joint and screw-adjustable tip of the rod. |
| 215 / 216 | Sleeve / pad part | Protect the finish; anti-slip tooth-marked base. |
Setup, use, and take-down
- Clamp the brackets - slide each U-shaped bracket over the table edge so the fixing rod lies on top and the second vertical rod hangs below.
- Adjust the height - turn the telescopic extension rod until its tip presses firmly against the table’s underside.
- Join the frame - press the spring pins on the connecting rod, push the rod ends into the brackets, and release; the pins drop into the snap holes.
- Use the seat - the baby eats at table height with the frame locked as one rigid unit.
- Disassemble - press both pins down and pull the rod out; the three parts stack flat for storage or shipping.

Applications
Family dinner at home
Parents seat a toddler at the kitchen table without storing a full-size high chair; after dinner the frame comes apart into three flat pieces and goes into a cabinet drawer or behind a door.
Small apartments and dorms
Where floor space is scarce, a chair that fully disassembles beats one that merely folds - nothing stays set up permanently on the floor.
Travel and visiting relatives
Grandparents’ houses and holiday rentals rarely have a spare high chair; a kit that packs into a travel bag installs on any ordinary table in minutes, with no screws left in someone else’s furniture.
Restaurants and cafés
Venues convert a couple of tables for families during peak hours and remove the gear afterward; tool-free clamp-on brackets protect the tabletop finish and leave no hardware behind.
Thin folding tables
The telescopic rod compensates for tabletop thickness, so the same bracket grips a plastic folding table at a park or a thick solid-wood dining table.
Where it is less suitable
- Round pedestal tables - the U-clamp needs a straight, accessible edge to hook under.
- Very thick or apron-heavy tables - beyond the extension rod’s travel range, the underside cannot be reached.
- Active older toddlers - this is a restraint-light seat; children who stand and lunge need a full high chair with harness and tray.
Frequently asked questions
How does the frame actually come apart?
The connecting rod plugs into both mounting brackets and locks with a spring pin at each end that drops into a snap hole. To disassemble, you press both pins down and pull the rod out. That leaves three flat parts - one rod and two brackets - which stack together.
Will it fit my table?
It clamps to a straight table edge: the fixing rod rests on top and the U-shaped arm hooks underneath. A telescopic extension rod presses up against the underside and adjusts for board thickness. Round or pedestal tables, and very thick tops beyond the rod’s travel, are not compatible.
Does it protect the tabletop?
Yes - the patent describes protective sleeves on the contact arms and a wide pad part with dense tooth marks on the upper contact face, increasing friction and keeping bare metal off the finish.
Is there a harness or tray?
The patent covers the seat-and-frame structure only; it does not describe a harness, buckle or tray. Those are added separately in design and must meet ASTM F1235 / 16 CFR 1227 restraint requirements.
How much weight does it hold?
The patent gives no load rating. Working load is set by tube wall thickness, pin retention and clamp geometry in design, and confirmed by prototype strength tests.
Why choose this over a folding high chair?
A folding chair still occupies floor space and needs a bag. This one separates into three slim pieces that store in a drawer or ship flat, and it uses the existing table instead of standing legs.
Can this design be made and sold in the US?
The patent was filed only in China and is in force there until at most 2031-12-01, so it restricts making or selling the design in China without the owner’s permission. It has no US counterpart, so it does not block US sales - but other US patents may cover related clamp-on or restraint-seat features - see Patent & Production - so we recommend a freedom-to-operate check before volume production.
Are you affiliated with the patent owner?
No. IP2M is an independent design and manufacturing service working from the public patent document.
Request a quote
Click Request a Quote below to see our email address - copy it, or open your email app with a ready-made message. Please mention patent CN216494520U in the subject.
Helpful details to include:
- Your company and channel (baby-gear brand, Amazon seller, restaurant supplier, travel-products maker)
- Target table range (thicknesses and edge styles) and bracket span
- Seat style, fabric/colorway and whether you add a harness
- Finish and contact-protection preference
- Estimated quantity and target price
- Timeline - when you would like samples and the first shipment
You can also reach us at (332) 203-9997.
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This page is based on the public patent document CN216494520U, assigned to Xiamen Anbaobei Fuyou Products 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.