Wheel for moving chair

Abstract

The utility model relates to the technical field of chairs, in particular to a wheel for moving a chair. The lifting seat comprises a seat body, a lifting assembly is movably arranged in the seat body, the lifting assembly comprises a limiting seat, a mounting seat and a roller, the roller is mounted at the bottom of the mounting seat, the limiting seat and the mounting seat are connected into a whole, and a spring is mounted between the limiting seat and the inner top of the seat body; the seat body is installed at the bottoms of the chair legs, when a user sits on the chair, the chair legs are stressed and pressed downwards, the chair legs drive the seat body to move downwards, the idler wheels retract into the seat body, and due to the fact that the seat body makes friction contact with the ground, the chair cannot move and keeps still; when a user stands, the rollers are reset outside the seat body under the elastic action of the springs, so that the user can push the chair to quickly move, and the chair is very convenient to use.

Description

Technical Field

[0001] This utility model relates to the field of chair technology, and specifically to a wheel for moving a chair. Background Technology

[0002] Existing chairs include both movable and immovable chairs. Movable chairs have casters fixed to the bottom of the chair legs, allowing the chair to move. To keep the chair stationary, the locking plates need to be pressed manually to lock the wheels and prevent the chair from moving. This type of chair is inconvenient to use because the user needs to manually unlock the wheels.

[0003] Therefore, based on the aforementioned shortcomings of existing chairs, improvements are needed. Utility Model Content

[0004] The purpose of this invention is to provide a wheel for moving a chair, which addresses the shortcomings of existing technologies and solves the problems of inconvenience in using existing chairs.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution.

[0006] A wheel for moving a chair includes a seat, and a lifting assembly is movably disposed within the seat. The lifting assembly includes a limit seat, a mounting seat, and a roller. The roller is mounted on the bottom of the mounting seat. The limit seat and the mounting seat are integrated. A spring is installed between the limit seat and the inner top of the seat.

[0007] Furthermore, the side of the housing of the seat is provided with multiple movable grooves, and the outer side of the limiting seat is formed with multiple buckles, which are embedded in the movable grooves to limit the movement range of the lifting assembly.

[0008] Furthermore, the upper end of the limiting seat is formed with a receiving groove, and the bottom of the spring is placed in the receiving groove to keep the spring stable.

[0009] Furthermore, the bottom of the limiting seat extends downward with a protruding ring, and the top surface of the mounting seat has a lower groove. The protruding ring of the limiting seat is located in the lower groove of the mounting seat, making the limiting seat and mounting seat assembly more stable.

[0010] Furthermore, the inner wall of the seat has a limiting groove, and the outer wall of the mounting seat has a limiting strip. The limiting strip is embedded in the limiting groove, making the movement of the mounting seat more stable, thereby ensuring the stability of the roller.

[0011] Furthermore, the inner wall of the seat is provided with a guide groove, which is located below the movable groove, so that the limiting seat can be installed quickly and the inverted buckle can be positioned quickly.

[0012] Furthermore, the seat includes a base plate, on which a shell is formed protruding. The outer wall of the shell has multiple protruding ridges. The center of the base plate has a through hole communicating with the shell. A lifting assembly is movably arranged inside the shell, allowing the seat to be inserted into the hollow tubular chair legs.

[0013] Furthermore, the bottom of the mounting base has a mounting groove, the roller is disposed in the mounting groove, the side wall at the bottom end of the mounting groove is formed with a snap-fit ​​groove, the roller is equipped with a pivot, the pivot is snapped in the snap-fit ​​groove, and the roller can achieve quick installation and positioning.

[0014] Furthermore, the top of the mounting base has a through hole that communicates with the mounting groove, and the bottom of the limiting base has a connecting buckle that engages with the through hole on the top of the mounting base, allowing the limiting base and the mounting base to be quickly connected and positioned.

[0015] The beneficial effects of this utility model are as follows: the seat is installed at the bottom of the chair legs. When the user sits on the chair, the chair legs are pressed down by force, and the chair legs drive the seat to move down. The rollers retract into the seat. Due to the friction between the seat and the ground, the chair cannot move and remains stationary. When the user stands up, under the elastic force of the spring, the rollers return to their original position outside the seat. The user can push the chair to move quickly, which is very convenient to use. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0017] Figure 2 This is a three-dimensional structural diagram of the present invention from another angle.

[0018] Figure 3 This is a schematic diagram of the bottom structure of this utility model.

[0019] Figure 4 This is a structural schematic diagram of the lifting component of this utility model.

[0020] Figure 5 This is a cross-sectional view of the lifting assembly of this utility model.

[0021] Labels and explanations:

[0022] 1. Base body, 2. Movable groove, 3. Limiting seat, 4. Inverted buckle, 5. Mounting seat, 6. Roller, 7. Mounting groove, 8. Receiver groove, 9. Connecting buckle, 10. Lower groove, 11. Limiting groove, 12. Limiting strip, 13. Guide groove, 14. Detailed Implementation

[0023] The present invention will be further described below with reference to the accompanying drawings.

[0024] See Figure 1 —— Figure 5The present invention provides a convenient wheel for moving a chair, comprising: a seat 1, the seat 1 including a base plate, a shell protruding from the base plate, the outer wall of the shell having multiple protruding ridges, a through hole in the center of the base plate communicating with the shell, and a lifting assembly movably disposed within the shell. The lifting assembly includes a limiting seat 3, a mounting seat 5, and rollers 6, the rollers 6 being mounted on the bottom of the mounting seat 5, the limiting seat 3 and the mounting seat 5 being integrated, and a spring being installed between the limiting seat 3 and the inner top of the shell.

[0025] The seat 1 of this utility model is installed at the bottom of the chair leg. Under normal conditions, under the elastic force of the spring, the roller 3 protrudes out of the seat 1 and can rotate. If the user pushes the chair, the roller 6 can drive the chair to move quickly.

[0026] When the user sits on the chair, the chair legs are pressed down by the force, and the chair legs drive the seat 1 to move down. The lifting component rises relative to the chair legs, and the rollers 6 retract into the seat 1. Because the seat 1 is in contact with the ground, the chair cannot move and remains stationary.

[0027] The base 1 of this utility model has multiple movable grooves 2 on its side, and multiple buckles 4 are formed on the outer side of the limiting seat 3. The buckles 4 are embedded in the movable grooves 2 and are limited to move within the movable grooves 2 to ensure the stability of the lifting component.

[0028] See Figure 5 The upper end of the limiting seat 3 of this utility model is formed with a receiving groove 9, and the bottom of the spring is placed in the receiving groove 9. The bottom of the mounting seat 5 has a mounting groove 7, and the roller 6 is set in the mounting groove 7. The side wall of the bottom end of the mounting groove 7 is formed with a snap-fit ​​groove 8. The roller 6 is equipped with a pivot, which is snapped in the snap-fit ​​groove 8, so that the roller 6 is stably installed on the mounting seat 5.

[0029] The bottom of the limiting seat 3 of this utility model has a protruding ring extending downwards, and the top surface of the mounting seat 5 has a lower groove 11. The protruding ring of the limiting seat 3 is located in the lower groove 11 of the mounting seat 5. The top of the mounting seat 5 has a through hole communicating with the mounting groove 7, and the bottom of the limiting seat 3 has a connecting buckle 10, which is fastened to the through hole at the top of the mounting seat 5.

[0030] The inner wall of the base 1 of this utility model has a limiting groove 12, and the outer wall of the mounting base 5 has a limiting strip 13. The limiting strip 13 is embedded in the limiting groove 12 to ensure the stable movement of the lifting component.

[0031] The inner wall of the base 1 of this utility model is provided with a guide groove 14. The guide groove 14 is located below the movable groove 2. During assembly, the buckle 4 of the limiting seat 3 is pushed into the base 1 along the guide groove 14, so that the buckle 4 can quickly enter the movable groove 2.

[0032] This utility model can be installed at the bottom of the chair legs. For some chairs that use hollow tubes as chair legs, the seat body 1 can be directly inserted into the bottom of the hollow tube, so that the outer wall protrusion of the seat body 1 contacts the inner wall of the hollow tube, and the bottom of the hollow tube contacts the bottom plate of the seat body 1, thereby increasing the stability of the installation.

[0033] Of course, the above-described embodiments are merely preferred examples of this utility model and are not intended to limit the scope of implementation of this utility model. Therefore, all equivalent changes or modifications made to the structure, features and principles described in the claims of this utility model should be included within the scope of the claims of this utility model.

Claims

1. A wheel for chair mobility, characterized by: The seat body is internally movably provided with a lifting assembly, which comprises a limiting seat, a mounting seat and a roller.

2. A wheel for chair mobility according to claim 1, wherein: The outer side of the limiting seat is formed with a plurality of reverse buckles, which are embedded in the movable grooves.

3. A wheel for chair mobility according to claim 1, wherein: The upper end of the limiting seat is formed with a containing groove, and the bottom of the spring is placed in the containing groove.

4. A wheel for chair mobility according to claim 1, wherein: The bottom of the limiting seat extends downwardly with a convex ring, and the top surface of the mounting seat has a lower groove, and the convex ring of the limiting seat is located in the lower groove of the mounting seat.

5. A wheel for chair mobility according to claim 1, wherein: The inner wall of the seat body has a limiting groove, and the outer wall of the mounting seat has a limiting strip, which is embedded in the limiting groove.

6. A wheel for chair mobility according to claim 2, wherein: The inner wall of the seat body is provided with a guide groove below the movable groove.

7. A wheel for chair mobility according to claim 1, wherein: The seat body comprises a bottom plate, the bottom plate is convexly formed with a shell, the outer wall of the shell has a plurality of convex edges, the center of the bottom plate has a through hole in communication with the shell, and the shell is movably provided with a lifting assembly.

8. A wheel for moving a chair according to any one of claims 1-7, characterized in that: The bottom of the mounting seat has a mounting groove, the roller is arranged in the mounting groove, the side wall of the bottom end of the mounting groove is formed with a buckle groove, the roller is provided with a pivot, and the pivot is clamped in the buckle groove.

9. A wheel for chair mobility according to claim 8, wherein: The top of the mounting seat is provided with a through hole in communication with the mounting groove, and the bottom of the limiting seat has a connecting buckle, which is buckled on the through hole of the top of the mounting seat.

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