Reinforcing spring assembly for supporting chair

By designing the cushion side plate, fixed bracket, rotary bracket and connecting rod support mechanism in the chair support assembly, forming a triangular structure and using torsion springs, the problem of weakening the bearing capacity of the chair support rod when rotating is solved, and the stability of the chair is improved and service life prevent users from falling.

CN222285058UActive Publication Date: 2025-01-03JIAXING TAIEN SPRINGS
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Patent Information

Application Number
CN202421218224.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-05-31
Publication Date
2025-01-03
Estimated Expiration
2034-05-31

AI Technical Summary

Technical Problem

The ability of the chair support rod to withstand the force when it rotates is weak, resulting in the problem of the swing chair tilting back, the rotor breaking or collapse.

Method used

A chair support assembly including a cushion side plate, a fixed bracket, a rotary bracket and a connecting rod support mechanism is designed. Through the cooperation of a triangular structure and a torsion spring, the stability and support of the bracket are increased, the service life is extended, and the user is prevented from being fall.

Benefits of technology

It effectively improves the stability and service life of the chair support structure, prevents the chair from tilting back and the user from falling accidentally, and enhances the load-bearing capacity of the bracket.

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Abstract

The utility model discloses a reinforcing spring component for supporting a chair, which relates to the technical field of chair supporting components and particularly comprises a cushion side plate, a connecting groove is arranged on one side of the cushion side plate, a fixing support is fixedly mounted on the top wall of the connecting groove on one side of the cushion side plate, and a through groove is arranged at the top of the surface of one side of the fixing support. A bearing plate is arranged at the bottom of the surface of one side of the fixing support, a shaft center is connected into a through groove in one side of the fixing support in a penetrating mode, and a torsion spring is connected to a limiting shaft connected with an ejector rod. When the connecting ejector rod moves, a torsion spring is stretched to deform so as to generate opposite pulling force on the connecting ejector rod; when the connecting ejector rod moves, a connecting shaft rod on one side slides to the leftmost end in a sliding groove for limiting; an upper tension spring is mounted between a connecting middle rod and a connecting bottom rod; under the action of the three supporting points, the backrest is supported, the service life of a traditional supporting structure is prolonged, meanwhile, a user is protected, and the problem that the user accidentally falls down is solved.
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Description

Technical Field

[0001] The utility model relates to the technical field of chair support components, in particular to a reinforcing spring component used for chair support. Background Art

[0002] Chair support spring assemblies generally refer to spring systems used to increase the stability and durability of a chair. These assemblies may include metal springs, rubber washers, or other components made of elastic materials that absorb shock, reduce vibration, and maintain the structural integrity of the chair.

[0003] Once the chair back is locked, it is rigidly supported when the user is sitting, but the load-bearing structure of the chair back is only the support rod, and the support rod also plays a rotating role, which weakens the ability of the rotating rod to withstand force, causing the swivel chair to often tilt backward, the swivel rod to break or collapse, and other problems. Utility Model Content

[0004] In view of the deficiencies of the prior art, the utility model provides a reinforcing spring assembly for supporting a chair, which solves the problem that the ability of the rotating rod to bear force is weakened when the support rod rotates, causing the swivel chair to often tilt backward, the rotating rod to break or collapse.

[0005] To achieve the above purpose, the utility model is implemented through the following technical solutions: the reinforcing spring assembly for chair support includes a cushion side plate, a connection groove is provided on one side of the cushion side plate, a fixed bracket is fixedly installed on the top wall of the connection groove on one side of the cushion side plate, a through groove is provided on the top of one side surface of the fixed bracket, a bearing plate is provided on the bottom of one side surface of the fixed bracket, an axis is connected through the through groove on one side of the fixed bracket, a rotating bracket is movably connected to the top of one side of the fixed bracket through the axis, a bearing groove is provided on one side of the rotating bracket, a support rod is provided in the bearing groove on one side of the rotating bracket, and a connecting rod support mechanism is fixedly installed on the inner side wall of the support rod;

[0006] The connecting rod support mechanism includes a connecting top rod fixedly installed on the inner wall of the support rod, a connecting portion is provided on the top of one side surface of the connecting top rod, and a through hole is provided on the top of one side surface of the connecting top rod. The seat is opened by controlling the distance through the fixed rod, and then the fixed bracket and the rotating bracket are installed on the seat cushion side panel in sequence. The support rod fixed on the rotating bracket will be sleeved and supported on the back chair to form a triangular structure, which is convenient for the reinforcement ribs to support the bracket, increase the stability of the bracket, and improve the stability of the device.

[0007] Optionally, a limiting shaft is connected through a through hole on one side of the connecting push rod, a through groove is provided on an outer arc surface of the limiting shaft, and a connecting middle rod is movably connected to one end of the connecting push rod away from the limiting shaft.

[0008] Optionally, a connecting bottom rod is movably connected to an edge of one side surface of the connecting middle rod, a sliding groove is provided in the middle of one side surface of the connecting bottom rod, and a connecting shaft rod is slidably engaged with an inner arc surface of the sliding groove.

[0009] Optionally, the connecting shaft rod is movably connected to the connecting middle rod at one side away from the connecting bottom rod, a supporting portion is provided on one side of the connecting bottom rod, and the connecting portion of the connecting top rod is fixedly mounted on the inner side wall of the supporting rod.

[0010] Optionally, a tension spring is fixedly installed on one side of the support portion, and one end of the tension spring away from the support portion is fixedly installed on the connecting shaft rod, and a telescopic rod is connected through the through slot of the limiting shaft.

[0011] Optionally, both ends of the telescopic rod are penetrated and connected with pre-tightening nuts, and a rubber base is fixedly installed on the lower surface of the pre-tightening nut.

[0012] Optionally, a torsion spring is fixedly installed on the surface of the rubber base, the number of the connecting bottom rods is two and they are distributed in a mirror-symmetrical manner, a fixing rod is fixedly installed on the surface of one side of the connecting bottom rod, and a seat is provided on the surface of the connecting bottom rod, and the torsion spring is connected to the limiting shaft of the connecting top rod, which will be stretched during the downward pressure to deform the torsion spring, thereby generating an opposite pulling force on the connecting top rod, and when the connecting top rod moves, the connecting shaft rod on one side slides to the leftmost end in the slide groove for limiting, and a tension spring is installed between the installed connecting middle rod and the connecting bottom rod. Therefore, under the action of three fulcrums, not only the backrest is supported, but also the service life of its traditional support structure is extended, while protecting the user and preventing the user from accidentally falling.

[0013] The utility model provides a reinforcing spring assembly for chair support, which has the following beneficial effects:

[0014] By connecting a torsion spring to the limiting shaft of the connecting top rod, the torsion spring will be stretched during the downward pressure to deform it, thereby generating an opposite pulling force on the connecting top rod, and when the connecting top rod moves, the connecting shaft rod on one side slides to the leftmost end in the slide groove for limiting, and a tension spring is installed between the installed connecting middle rod and the connecting bottom rod. Therefore, under the action of three fulcrums, not only the backrest is supported, but also the service life of its traditional supporting structure is extended, while protecting the user and preventing the user from accidentally falling. The seat is opened by controlling the distance through the fixed rod, and then the fixed bracket and the rotating bracket are installed on the side panel of the cushion in turn. The support rod fixed on the rotating bracket will be sleeved and supported on the back chair to form a triangular structure, which is convenient for the reinforcement ribs to support the bracket, and increase the stability of the bracket, thereby improving the stability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the implementation of the utility model or the technical solution in the prior art, the following is a brief introduction to the drawings required for the implementation or the prior art description. Obviously, the drawings in the following description are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0016] Figure 1 This is a schematic diagram of the internal disassembled structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the back structure of one side of the utility model;

[0018] Figure 3 It is a partial structural schematic diagram of the utility model;

[0019] Figure 4 This is a schematic diagram of the disassembled structure of the utility model;

[0020] Figure 5 It is a schematic diagram of the overall seat structure of the utility model.

[0021] In the figure: 1. Cushion side panel; 2. Fixed bracket; 201. Load-bearing plate; 3. Axis; 4. Rotating bracket; 5. Support rod; 6. Connecting rod support mechanism; 601. Connecting top rod; 602. Connecting part; 603. Limiting shaft; 604. Connecting middle rod; 605. Connecting bottom rod; 606. Slide groove; 607. Connecting shaft rod; 608. Support part; 7. Tension spring; 8. Pre-tightening nut; 9. Rubber base; 10. Torsion spring; 11. Fixed rod; 12. Seat; 13. Telescopic rod. DETAILED DESCRIPTION

[0022] The structures, proportions, sizes, etc. illustrated in this specification are only used to match the contents disclosed in the specification so as to facilitate understanding and reading by persons familiar with the technology. They are not used to limit the conditions under which the present invention can be implemented, and therefore have no substantial technical significance. Any structural modification, change in proportion or adjustment in size shall still fall within the scope of the technical contents disclosed in the present invention without affecting the effects and purposes that can be achieved by the present invention.

[0023] See also Figures 1 to 5The utility model provides a technical solution: a reinforcing spring assembly for supporting a chair comprises a cushion side plate 1, a connecting groove is provided on one side of the cushion side plate 1, a fixing bracket 2 is fixedly installed on the top wall of the connecting groove on one side of the cushion side plate 1, a through groove is provided on the top of one side surface of the fixing bracket 2, a bearing plate 201 is provided on the bottom of one side surface of the fixing bracket 2, an axis 3 is penetrated and connected in the through groove on one side of the fixing bracket 2, a rotating bracket 4 is movably connected to the top of one side of the fixing bracket 2 through the axis 3, a bearing groove is provided on one side of the rotating bracket 4, a support rod 5 is provided in the bearing groove on one side of the rotating bracket 4, a connecting rod supporting mechanism 6 is fixedly installed on the inner side wall of the support rod 5, the connecting rod supporting mechanism 6 comprises a connecting top rod 601 fixedly installed on the inner side wall of the support rod 5, a connecting portion 602 is provided on the top of one side surface of the connecting top rod 601, and a through hole is provided on the top of one side surface of the connecting top rod 601.

[0024] The seat 12 is opened by controlling the distance through the fixed rod 11, and then the fixed bracket 2 and the rotating bracket 4 are installed on the cushion side panel 1 in sequence. The support rod 5 fixed on the rotating bracket 4 will be sleeved and supported on the back chair to form a triangular structure, which is convenient for the reinforcement ribs to support the bracket, increase the stability of the bracket, and improve the stability of the device.

[0025] A through hole on one side of the connecting top rod 601 passes through and is connected with a limiting axis 603, and a through groove is provided on the outer arc surface of the limiting axis 603. The end of the connecting top rod 601 away from the limiting axis 603 is movably connected with a connecting middle rod 604, and a connecting bottom rod 605 is movably connected at the edge of one side surface of the connecting middle rod 604. A sliding groove 606 is provided in the middle part of one side surface of the connecting bottom rod 605, and a connecting shaft rod 607 is slidably connected to the inner arc surface of the sliding groove 606. The side of the connecting shaft rod 607 away from the connecting bottom rod 605 is movably connected to the connecting middle rod 604, and a supporting portion 608 is provided on one side of the connecting bottom rod 605. The connecting portion of the connecting top rod 601 602 is fixedly installed on the inner wall of the support rod 5, a tension spring 7 is fixedly installed on one side of the support part 608, and one end of the tension spring 7 away from the support part 608 is fixedly installed on the connecting shaft 607. A telescopic rod 13 is penetrated and connected in the through groove of the limiting shaft 603, and pre-tightening nuts 8 are penetrated and connected at both ends of the telescopic rod 13. A rubber base 9 is fixedly installed on the lower surface of the pre-tightening nut 8, and a torsion spring 10 is fixedly installed on the surface of the rubber base 9. There are two connecting bottom rods 605, and they are distributed in a mirror symmetrical manner. A fixing rod 11 is fixedly installed on the surface of one side of the connecting bottom rod 605, and a seat 12 is provided on the surface of the connecting bottom rod 605.

[0026] By connecting the torsion spring 10 to the limiting shaft 603 of the connecting top rod 601, the torsion spring 10 will be stretched during the downward pressing process to cause it to deform, thereby generating an opposite pulling force on the connecting top rod 601, and when the connecting top rod 601 moves, the connecting shaft rod 607 on one side slides to the leftmost end in the sliding groove 606 for limiting, and a tension spring 7 is installed between the installed connecting middle rod 604 and the connecting bottom rod 605. Therefore, under the action of three fulcrums, not only the backrest is supported, but also the service life of its traditional supporting structure is extended, while protecting the user and preventing the user from accidentally falling.

[0027] In the utility model, the working steps of the device are as follows:

[0028] The seat cushion side panels 1 are supported at two locations in the seat 12 respectively. The two seat cushion side panels 1 control the distance between the seat 12 through the fixing rod 11, and then the fixing bracket 2 and the rotating bracket 4 are installed on the seat cushion side panels 1 in sequence. The support rod 5 fixed on the rotating bracket 4 will be sleeved and supported on the backrest. In order to prevent the backrest from being broken due to excessive gravity, a connecting bottom rod 605 will be fixedly installed on the inner side of the seat cushion side panel 1, and a connecting middle rod 604 is movably connected to the edge of one side of the connecting bottom rod 605, and a connecting top rod 601 is provided on the top of the connecting middle rod 604. The connecting top rod 601 is fixedly installed in the supporting rod 5, so the supporting rod 5 and its connecting rod are linked, and the connecting rods form an angular structure. The seat 12 is supported. When the user leans back against the support rod 5, the connecting top rod 601 is pressed down. At this time, the torsion spring 10 is connected to the limiting shaft 603 of the connecting top rod 601. The torsion spring 10 is stretched during the pressing process to deform it, thereby generating an opposite pulling force on the connecting top rod 601, and when the connecting top rod 601 moves, the connecting shaft rod 607 on one side slides to the leftmost end in the slide groove 606 for limiting, and a tension spring 7 is installed between the installed connecting middle rod 604 and the connecting bottom rod 605. Therefore, under the action of three fulcrums, not only the backrest is supported, but also the service life of its traditional support structure is extended, while protecting the user and preventing the user from accidentally falling.

[0029] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A reinforcing spring assembly for chair support, comprising a cushion side plate (1), characterized in that: A connecting groove is provided on one side of the cushion side plate (1); a fixing bracket (2) is fixedly installed on the top wall of the connecting groove on one side of the cushion side plate (1); a through groove is provided on the top of one side surface of the fixing bracket (2); a bearing plate (201) is provided on the bottom of one side surface of the fixing bracket (2); an axis (3) is connected through the through groove on one side of the fixing bracket (2); a rotating bracket (4) is movably connected to the top of one side of the fixing bracket (2) through the axis (3); a bearing groove is provided on one side of the rotating bracket (4); a support rod (5) is provided in the bearing groove on one side of the rotating bracket (4); a connecting rod support mechanism (6) is fixedly installed on the inner side wall of the support rod (5); The connecting rod support mechanism (6) comprises a connecting top rod (601) fixedly mounted on the inner side wall of the support rod (5), a connecting portion (602) is provided at the top of one side surface of the connecting top rod (601), and a through hole is provided at the top of one side surface of the connecting top rod (601).

2. The reinforcing spring assembly for chair support according to claim 1, characterized in that: A limiting shaft (603) is connected and penetrated through a through hole on one side of the connecting top rod (601); a through groove is provided on the outer arc surface of the limiting shaft (603); and a connecting middle rod (604) is movably connected to one end of the connecting top rod (601) away from the limiting shaft (603).

3. The reinforcing spring assembly for chair support according to claim 2, characterized in that: A connecting bottom rod (605) is movably connected to the edge of one side surface of the connecting middle rod (604), a sliding groove (606) is provided in the middle of one side surface of the connecting bottom rod (605), and a connecting shaft rod (607) is slidably engaged with the inner arc surface of the sliding groove (606).

4. The reinforcing spring assembly for chair support according to claim 3, characterized in that: The side of the connecting shaft rod (607) away from the connecting bottom rod (605) is movably connected to the connecting middle rod (604), one side of the connecting bottom rod (605) is provided with a supporting portion (608), and the connecting portion (602) of the connecting top rod (601) is fixedly mounted on the inner side wall of the supporting rod (5).

5. The reinforcing spring assembly for chair support according to claim 4, characterized in that: A tension spring (7) is fixedly mounted on one side of the support portion (608), and one end of the tension spring (7) away from the support portion (608) is fixedly mounted on the connecting shaft (607), and a telescopic rod (13) is connected through the through slot of the limiting shaft (603).

6. The reinforcing spring assembly for chair support according to claim 5, characterized in that: Both ends of the telescopic rod (13) are penetrated and connected with pre-tightening nuts (8), and a rubber base (9) is fixedly mounted on the lower surface of the pre-tightening nut (8).

7. The reinforcing spring assembly for chair support according to claim 6, characterized in that: A torsion spring (10) is fixedly mounted on the surface of the rubber base (9); the number of the connecting bottom rods (605) is two and they are distributed in a mirror-symmetrical manner; a fixing rod (11) is fixedly mounted on one side surface of the connecting bottom rod (605); and a seat (12) is provided on the surface of the connecting bottom rod (605).