Impact-resistant office chair foot with buffer function

Abstract

The present application provides an impact-resistant office chair foot with a buffering function, including a connecting rod connected to the office chair, an impact-resistant support angle annularly distributed outside the connecting rod and connected to the connecting rod, and a universal wheel distributed below the impact-resistant support angle, a lower shell and an upper shell are provided between the universal wheel and the impact-resistant support angle, and the lower shell and the upper shell are slidably assembled with each other for the installation of a shock absorber therein. The present application realizes the crushing transmission of the impact force suddenly received by the chair itself when sitting down through the provided shock absorber, so that the distance between the universal wheel and the impact-resistant support angle is changed through the relative sliding of the upper frame and the lower shell and the damping extension of the damping rod, thereby achieving a certain degree of buffering and dispersing the impact force. Compared with the traditional situation in which the impact force is directly transmitted to the universal wheel, resulting in the rigid contact between the universal wheel and the ground, it is more conducive to the buffering protection of the universal wheel itself.

Description

Technical Field

[0001] The utility model relates to the field of office chairs, in particular to an impact-resistant office chair foot with a buffering function. Background Art

[0002] Office chairs refer to various chairs that are used for convenience in daily work and social activities. Office partners divide office chairs into narrow and broad definitions. The narrow definition of office chairs refers to the backrest chairs that people sit on when they work on their desks. The broad definition of office chairs refers to all chairs used in offices, including executive chairs, mid-shift chairs, reception chairs, staff chairs, conference chairs, visitor chairs, training chairs, etc.

[0003] Offices are usually equipped with corresponding office equipment to assist office workers to carry out office activities more efficiently and comfortably. Among them, office chairs are one of them. At present, most office chairs have universal wheels at the bottom for universal sliding of the chair itself to facilitate the office use of the staff. However, it is found in actual use that since the universal wheels and the chair are mostly in a locked state, when the chair itself is subjected to a sudden sitting down impact, the impact force will be directly transmitted to the universal wheels, causing rigid resistance between the universal wheels and the ground, which will easily cause deformation of the universal wheels for a long time, reduce the effect of the universal movement, and even produce abnormal noises and make it impossible to walk normally;

[0004] Therefore, we make improvements on this and propose an impact-resistant office chair foot with a buffering function. Utility Model Content

[0005] The utility model aims to provide an impact-resistant office chair foot with a buffering function, which solves the problem of the existing impact-resistant office chair foot with a buffering function. When the chair itself is in use, after being subjected to a sudden sitting-down impact, the impact force will be directly transmitted to the universal wheel, causing it to produce a rigid conflict with the ground, thereby easily causing the universal wheel to deform over a long period of time.

[0006] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0007] An impact-resistant office chair foot with a buffering function, comprising a connecting rod connected to the office chair, an impact-resistant support angle annularly distributed outside the connecting rod and connected to the connecting rod, and a universal wheel distributed below the impact-resistant support angle, a lower shell and an upper shell are provided between the universal wheel and the impact-resistant support angle, and the lower shell and the upper shell are slidably assembled with each other for installation of a shock absorber and the inside thereof;

[0008] The top of the shock absorber is connected to a transmission frame, and the top of the transmission frame passes through the cover plate and is fixed with a connecting seat, the connecting seat is fixed on the anti-impact support angle, and the side of the connecting seat away from the anti-impact support angle extends to form a connecting side plate fixed to the cover plate;

[0009] The cover plate is fixed to the top of the upper shell and allows the transmission frame to slide inside it;

[0010] It also includes a locking unit connected to the lower shell and the upper shell to lock the shock absorber.

[0011] As a preferred technical solution of the present application, the shock absorber also includes a damping telescopic rod connected to the inner bottom wall of the lower shell and a shock-absorbing spring sleeved on the surface of the damping telescopic rod, and the transmission frame is connected to the damping telescopic rod on the shock absorber.

[0012] As a preferred technical solution of the present application, the lower shell and the upper shell are respectively fixed to the corresponding universal wheels and cover plates.

[0013] As a preferred technical solution of the present application, the locking unit includes an execution part and a limiting part;

[0014] The limiting part includes a slider slidably arranged in the upper shell, the slider extends a limiting section toward the lower shell, and a male limiting tooth plate adapted to the female limiting tooth plate is fixedly arranged at the end of the limiting section;

[0015] The female limit tooth plate is fixed to a position of the lower housing corresponding to the male limit tooth plate. In the natural state of the shock absorber, the height positions of the female limit tooth plate and the male limit tooth plate correspond.

[0016] As a preferred technical solution of the present application, the limiting portion also includes a return spring sleeved on the limiting section, one end of the return spring is connected to one side of the slider and the other end is connected to the surface of the male limit tooth plate.

[0017] As a preferred technical solution of the present application, the sliding block extends outside the upper shell body on one side relative to the limiting section and is formed with an arc chamfer.

[0018] As a preferred technical solution of the present application, the execution part includes an execution frame rotatably connected to the cover plate through a bearing and an execution end extending in the direction of the slider;

[0019] Among them, the arc chamfer is also connected with a limit plate for limiting the execution end.

[0020] As a preferred technical solution of the present application, an anti-slip pad layer is laid on the arc chamfer and the execution end.

[0021] Compared with the prior art, the utility model has the following beneficial effects:

[0022] In the scheme of this application:

[0023] 1. The shock absorber is set to crush and transmit the sudden impact force when sitting down on the chair itself, so that the relative distance between the universal wheel and the anti-impact support angle is changed through the relative sliding of the upper frame and the lower shell and the damping extension of the damping rod, so as to achieve a certain degree of buffering and disperse the impact force. Compared with the traditional situation where the impact force is directly transmitted to the universal wheel, resulting in the rigid contact between the universal wheel and the ground, it is more conducive to the buffering protection of the universal wheel itself, and also improves the comfort of the user when sitting down to a certain extent;

[0024] 2. Through the cooperation of the locking unit and the limiting part, the execution frame is rotated on the surface of the transmission frame, so that the execution end on it forms a resistance to the slider, and the male limit tooth plate and the female limit tooth plate form a mutual resistance state, thereby realizing the locking of the relative distance between the upper shell and the lower shell, so that the office chair foot structure can open and close the buffer function according to actual usage requirements, so as to meet the usage needs of different office people and improve the practicality of the office chair foot. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 A schematic diagram of the structure of the impact-resistant office chair foot with a buffering function provided in this application;

[0026] Figure 2 A schematic diagram of a portion of the structure of the foot of an impact-resistant office chair with a buffering function provided in the present application;

[0027] Figure 3 A schematic diagram of the structure of the shock absorber for the foot of an impact-resistant office chair with a buffering function provided in this application;

[0028] Figure 4 The impact-resistant office chair foot with a cushioning function provided in this application Figure 3 The enlarged structural diagram at A in the middle;

[0029] Figure 5 A schematic diagram of the disassembly structure of the shock absorber at the foot of the impact-resistant office chair with a buffering function provided in this application;

[0030] Figure 6 A schematic diagram of the side view of the shock absorber for the foot of an impact-resistant office chair with a buffering function provided in the present application;

[0031] Figure 7 The impact-resistant office chair foot with a cushioning function provided in this application Figure 6 The enlarged structural diagram at B in the middle;

[0032] Figure 8This is a schematic diagram of the top view of the structure inside the upper frame of the impact-resistant office chair foot with buffering function provided in the present application.

[0033] Indicated in the figure:

[0034] 1. Connecting rod; 2. Anti-impact support angle; 3. Universal wheel; 4. Lower housing; 5. Upper housing; 6. Shock absorber; 7. Locking unit;

[0035] 61. Transmission frame; 62. Cover plate; 63. Connecting side plate; 64. Damping telescopic rod; 65. Shock-absorbing spring; 66. Connecting seat.

[0036] 71. Execution unit; 72. Limiting unit;

[0037] 710, execution frame; 711, execution end; 712, anti-slip cushion layer;

[0038] 720, slider; 721, limit section; 722, female limit tooth plate; 723, male limit tooth plate; 724, return spring; 725, arc chamfer; 726, limit plate. DETAILED DESCRIPTION

[0039] To make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be described clearly and completely in conjunction with the accompanying drawings. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments.

[0040] Therefore, the following detailed description of the embodiments of the present invention is not intended to limit the scope of the present invention to be protected, but merely represents some embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0041] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features and technical solutions in the embodiments may be combined with each other.

[0042] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0043] In the description of the present utility model, it should be noted that the orientation or position relationship indicated by the terms "upper", "lower", etc. is based on the orientation or position relationship shown in the drawings, or the orientation or position relationship in which the invention product is usually placed when in use, or the orientation or position relationship commonly understood by those skilled in the art. Such terms are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0044] Example 1

[0045] like Figure 1-Figure 8 As shown, this embodiment proposes an impact-resistant office chair foot with a buffering function, including a connecting rod 1 connected to the office chair, an impact-resistant support angle 2 annularly distributed outside the connecting rod 1 and connected to the connecting rod 1, and a universal wheel 3 distributed below the impact-resistant support angle 2, a lower shell 4 and an upper shell 5 are provided between the universal wheel 3 and the impact-resistant support angle 2, the lower shell 4 and the upper shell 5 are slidably assembled with each other for the installation of a shock absorber 6 and the inside thereof, and a plurality of impact-resistant support angles 2 annularly distributed outside the connecting rod 1 can jointly form a support for the seat, so as to meet the overall impact resistance effect of the seat when it is used, and at the same time, the seat can be kept relatively stable;

[0046] The top of the shock absorber 6 is connected to a transmission frame 61, and the top of the transmission frame 61 passes through the cover plate 62 to be fixed with a connection seat 66, the connection seat 66 is fixed on the anti-impact support angle 2, and the connection seat 66 extends away from the side of the anti-impact support angle 2 to form a connection side plate 63 fixed to the cover plate 62, wherein the cover plate 62 is fixed to the top of the upper shell 5 and allows the transmission frame 61 to slide inside it, and the lower shell 4 and the upper shell 5 are respectively fixed to the corresponding universal wheel 3 and the cover plate 62;

[0047] The shock absorber 6 further includes a damping telescopic rod 64 connected to the inner bottom wall of the lower housing 4 and a damping spring 65 sleeved on the surface of the damping telescopic rod 64. The transmission frame 61 is connected to the damping telescopic rod 64 on the shock absorber 6.

[0048] like Figure 1 and Figure 2As shown, when the seat on the anti-impact support angle 2 connected to the connecting seat 66 is subjected to a downward impact force, the impact force will be transmitted to the connecting seat 66 through the connecting rod 1 and the anti-impact support angle 2. After the connecting seat 66 is subjected to the impact force, the impact force will be transmitted to the connecting side plate 63 through the cover plate 62, and the cover plate 62 drives the upper shell 5 to slide toward the direction of the lower shell 4, so that the upper shell 5 and the lower shell 4 slide relative to each other. During the sliding process, the transmission frame 61 will synchronously contact the top of the damping telescopic rod 64 to cause it to expand and contract, and through the cooperation of the shock-absorbing spring 65 thereon, the downward impact force can be dispersed, and the impact force transmitted to the universal wheel 3 is weakened, thereby realizing the buffering protection of the universal wheel 3, making it better suitable for office use.

[0049] Example 2

[0050] like Figure 1-Figure 8 As shown, this embodiment adds a locking unit 7 on the basis of the embodiment 1, thereby realizing the locking of the relative distance between the upper shell 5 and the lower shell 4, so that the foot structure of the office chair can open and close the buffer function according to the actual use requirements, so as to meet the use requirements of different office groups, and improve the practicality of the foot of the office chair. The specific structure is as follows:

[0051] The locking unit 7 is connected to the lower shell 4 and the upper shell 5 to lock the shock absorber 6 .

[0052] The locking unit 7 includes an execution portion 71 and a limiting portion 72;

[0053] The limiting portion 72 includes a slider 720 slidably arranged in the upper shell 5, the slider 720 extends a limited segment 721 in the direction of the lower shell 4, and a male limit tooth plate 723 adapted to the female limit tooth plate 722 is fixedly arranged at the end of the limiting segment 721, the female limit tooth plate 722 is fixed to the lower shell 4 at a position corresponding to the male limit tooth plate 723, and in the natural state of the shock absorber 6, the height positions of the female limit tooth plate 722 and the male limit tooth plate 723 correspond, and the limiting portion 72 also includes a return spring 724 sleeved on the limiting segment 721, one end of the return spring 724 is connected to one side of the slider 720 and the other end is connected to the surface of the male limit tooth plate 723;

[0054] The slider 720 extends to the outside of the upper housing 5 on one side relative to the limiting section 721 and is formed with an arc chamfer 725, wherein the arc chamfer 725 is also connected with a limiting plate 726 for limiting the actuator end 711;

[0055] As a further optimization of this embodiment: the execution part 71 includes an execution frame 710 rotatably connected to the cover plate 62 through a bearing and an execution end 711 extending toward the slider 720;

[0056] The arc chamfer 725 and the execution end 711 are both paved with an anti-skid pad layer 712. Through the provision of the anti-skid pad layer 712, the execution end 711 and the corresponding slider 720 can be more stable when they form mutual interference, and are not prone to relative sliding, so that it can better meet the use of the device during buffer locking.

[0057] The actuator frame 710 is rotated above the cover plate 62, so that the actuator frame 710 drives the actuator end 711 thereon to slide in the direction of the slider 720. When the actuator end 711 contacts the position of the slider 720, the actuator frame 710 continues to rotate. At this time, the resistance end 711 will form a resistance with the corresponding arc chamfer 725. The arc chamfer 725 subjected to the resistance force will drive the slider 720 and the limiting section 721 and the male limiting tooth plate 723 thereon to slide in the direction of the female limiting tooth plate 722, and finally the male limiting tooth plate 723 and the female limiting tooth plate 722 will form a state of mutual meshing, forming a state as shown in FIG. Figure 7 As shown;

[0058] At this time, if Figure 8 As shown, the execution end 711 at one end of the execution frame 710 just contacts the middle position of the slider 720, and through the cooperation of the limit plate 726, the execution frame 710 can be located at the middle position of the end of the slider 720 when rotating, so that it can maintain a good and stable contact use, and the slider 720 that receives the contact force will first limit the mutual position of the male limit tooth plate 723 and the female limit tooth plate 722 to form a lock for the upper shell 5 and the lower shell 4, thereby synchronously forming a lock for the damping telescopic rod 64, so that it can buffer the lock of the device to meet the usage needs of different groups of people.

[0059] The above embodiments are only used to illustrate the present invention and are not intended to limit the technical solutions described in the present invention. Although the present invention has been described in detail with reference to the above embodiments, the present invention is not limited to the above specific implementation methods. Therefore, any modification or equivalent replacement of the present invention; and all technical solutions and improvements thereof that do not depart from the spirit and scope of the invention are included in the scope of the claims of the present invention.

Claims

1. An impact-resistant office chair foot with a buffering function, comprising a connecting rod (1) connected to the office chair, an impact-resistant support angle (2) annularly distributed outside the connecting rod (1) and connected to the connecting rod (1), and a universal wheel (3) distributed below the impact-resistant support angle (2), characterized in that: A lower shell (4) and an upper shell (5) are provided between the universal wheel (3) and the anti-impact support angle (2), and the lower shell (4) and the upper shell (5) are slidably assembled with each other for installation of a shock absorber (6) and the interior thereof; The top of the shock absorber (6) is connected to a transmission frame (61), and the top end of the transmission frame (61) passes through the cover plate (62) and is fixed with a connection seat (66), the connection seat (66) is fixed on the anti-impact support angle (2), and the connection seat (66) extends away from the anti-impact support angle (2) to form a connection side plate (63) fixed to the cover plate (62); The cover plate (62) is fixed to the top of the upper housing (5) and allows the transmission frame (61) to slide inside it; It also includes a locking unit (7) connected to the lower shell (4) and the upper shell (5) and used to lock the shock absorber (6).

2. The impact-resistant office chair foot with a buffering function according to claim 1, characterized in that: The shock absorber (6) further comprises a damping telescopic rod (64) connected to the inner bottom wall of the lower shell (4) and a damping spring (65) sleeved on the surface of the damping telescopic rod (64); the transmission frame (61) is connected to the damping telescopic rod (64) on the shock absorber (6).

3. The impact-resistant office chair foot with a buffering function according to claim 1, characterized in that: The lower shell (4) and the upper shell (5) are respectively fixed to the corresponding universal wheels (3) and cover plates (62).

4. The impact-resistant office chair foot with a buffering function according to claim 1, characterized in that: The locking unit (7) comprises an execution part (71) and a limiting part (72); The limiting portion (72) comprises a slider (720) slidably arranged in the upper shell (5); the slider (720) extends a limiting section (721) in the direction of the lower shell (4); and a male limiting tooth plate (723) adapted to the female limiting tooth plate (722) is fixedly arranged at the end of the limiting section (721); The female limit tooth plate (722) is fixed to a position of the lower shell (4) corresponding to the male limit tooth plate (723); when the shock absorber (6) is in a natural state, the height positions of the female limit tooth plate (722) and the male limit tooth plate (723) correspond.

5. The impact-resistant office chair foot with a buffering function according to claim 4, characterized in that: The limiting portion (72) further comprises a return spring (724) sleeved on the limiting section (721), one end of the return spring (724) being connected to one side of the sliding block (720) and the other end being connected to the surface of the male limiting tooth plate (723).

6. The impact-resistant office chair foot with a buffering function according to claim 5, characterized in that: The sliding block (720) extends outside the upper shell (5) on one side relative to the limiting section (721) and is formed with an arc chamfer (725).

7. The impact-resistant office chair foot with a buffering function according to claim 6, characterized in that: The actuator (71) comprises an actuator frame (710) rotatably connected to the cover plate (62) via a bearing and an actuator end (711) extending in a direction toward the slider (720); The arc chamfer (725) is also connected to a limiting plate (726) for limiting the position of the execution end (711), and the execution frame (710) is sleeved on the surface of the transmission frame (61).

8. The impact-resistant office chair foot with a buffering function according to claim 7, characterized in that: The arc chamfer (725) and the execution end (711) are both provided with an anti-slip cushion layer (712).

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