An office chair with height adjustment function

Abstract

The present invention discloses an office chair with a height adjustment function, and relates to the technical field of office equipment. The office chair with a height adjustment function comprises a base, the upper surface of the base is fixedly connected to the bottom end of a hydraulic lifting seat, the output end of the hydraulic lifting seat is fixedly connected to the bottom end of an adjustment column, a support column is slidably mounted on the inner wall of the adjustment column, and an elastic component is arranged inside the adjustment column to provide better comfort for users of different weights. The office chair with a height adjustment function is provided with an elastic component to adjust the reverse force provided by the buffer spring when it is squeezed with different forces, and cooperates with the support column so that the seat can provide a better buffering effect when used by passengers of different weights, so as to ensure the comfort of the passengers, avoid passengers with heavier weight from applying greater pressure to the hydraulic lifting seat when sitting, and reduce the service life of the device and the stability during use.

Description

Technical Field

[0001] The invention relates to the technical field of office equipment, in particular to an office chair with a height adjustment function. Background Art

[0002] With the rapid development of the economy, more and more companies choose to carry out daily office activities in high-end office buildings. In high-end office buildings, office workers generally need to use office chairs for daily office activities, providing a place for office workers to rest during their spare time at work. It can also facilitate office workers to work in a more comfortable posture, which helps to improve work efficiency.

[0003] In order to meet the needs of office workers of different heights, existing office chairs generally use office chairs with adjustable height. When a heavier user sits on the existing adjustable height office chair, the lifting component of the office chair is easily impacted by gravity. As the use time increases, the lifting efficiency of the lifting component of the office chair is easily reduced, and the aging of the equipment is also accelerated, bringing safety hazards. In view of this, we designed an office chair with height adjustment function. Summary of the invention

[0004] 1. Technical issues to be solved

[0005] In view of the deficiencies in the prior art, the present invention provides an office chair with a height adjustment function, which solves the problems mentioned in the above background technology.

[0006] (II) Technical solution

[0007] To achieve the above objectives, the present invention is implemented through the following technical solutions: an office chair with height adjustment function, comprising a base, a universal wheel is arranged at the bottom of the base, the upper surface of the base is fixedly connected to the bottom end of the hydraulic lifting seat, the output end of the hydraulic lifting seat is fixedly connected to the bottom end of the adjusting column, and the height of the adjusting column is adjusted by providing a hydraulic lifting seat, so that it can be raised or lowered to meet the riding needs of users of different heights, a support column is slidably installed on the inner wall of the adjusting column, the top of the support column is fixedly connected to the bottom of the seat, an elastic component is arranged inside the adjusting column to provide better comfort for users of different weights, and a clamping component is arranged inside the adjusting column.

[0008] Preferably, a massage cavity is provided inside the seat, and a massage component is arranged inside the massage cavity.

[0009] Preferably, the elastic component includes a rotating knob, which is rotatably installed on the left outer wall of the adjusting column, a worm screw passes through the rotating knob, and the end of the worm screw is fixedly connected to the rotating knob, a spiral rod is rotatably installed on the inner wall of the adjusting column, a worm wheel passes through the spiral rod, and the worm wheel is fixedly connected to the spiral rod, and a threaded transmission plate is threadedly connected to the outer wall of the spiral rod, and the threaded transmission plate moves in the vertical direction along the inner wall of the adjusting column through the rotation of the spiral rod.

[0010] Preferably, the upper surface of the threaded transmission plate is fixedly connected to the bottom end of the first telescopic rod, the top of the first telescopic rod is fixedly connected to the lower surface of the transmission slide plate, the upper surface of the threaded transmission plate is fixedly connected to the bottom end of the buffer spring, the top of the buffer spring is fixedly connected to the lower surface of the transmission slide plate, and the upper surface of the transmission slide plate is rotatably connected to the bottom end of the support column, so that the occupant can rotate it, making it convenient for the occupant to work.

[0011] Preferably, the clamping assembly includes a button, the button has a first gear rod passing through it, and the end of the first gear rod is fixedly connected to the button, and by pressing the button, the first gear rod moves horizontally along the inner wall of the adjusting column, the left outer wall of the button is fixedly connected to the right end of the reset spring, and the left end of the reset spring is fixedly connected to the right outer wall of the adjusting column.

[0012] Preferably, a gear is rotatably installed on the inner wall of the adjustment column, a transmission plate 1 is slidably installed on the inner wall of the adjustment column, a rack that can mesh with the gear is provided on the right outer wall of the transmission plate 1, and a limiting tooth is fixedly installed on the left outer wall of the transmission plate 1.

[0013] Preferably, the massage component includes a driving motor, a reciprocating screw is fixedly installed on the output end of the driving motor, and a threaded slider is threadedly connected to the outer wall of the reciprocating screw. By starting the driving motor and cooperating with the reciprocating screw, the threaded slider reciprocates in the vertical direction along the inner wall of the massage cavity, and a fitting seat is fixedly installed on the left outer wall of the threaded slider.

[0014] Preferably, the right side of the inner wall of the fitting seat is fixedly connected to the right end of the second telescopic rod, the left end of the second telescopic rod is fixedly connected to the right side outer wall of the second transmission plate, the right side of the inner wall of the fitting seat is fixedly connected to the right end of the fitting spring, and the left end of the fitting spring is fixedly connected to the right side outer wall of the second transmission plate.

[0015] Preferably, the left outer wall of the second transmission plate is fixedly connected to the right end of the mounting frame, and a massage roller is provided at the left end of the mounting frame.

[0016] (III) Beneficial effects

[0017] The present invention provides an office chair with height adjustment function, which has the following beneficial effects:

[0018] (1) When the office chair with height adjustment function is in use, an elastic component is provided to adjust the reverse force provided by the buffer spring when it is squeezed with different forces. In cooperation with the support column, the chair can provide a relatively good buffering effect when used by passengers of different weights, thereby ensuring the comfort of the passengers and preventing heavier passengers from applying greater pressure to the hydraulic lifting seat when sitting, thereby reducing the service life of the device and the stability of the device during use.

[0019] (2) When the office chair with height adjustment function is in use, after adjusting the elastic component, the limiting teeth are allowed to enter the limiting grooves provided on the side walls of the threaded transmission plate, so that the threaded transmission plate and the adjustment column are kept in a relatively fixed state. At the same time, a supporting effect is provided for the threaded transmission plate, thereby reducing the wear between the threaded transmission plate and the spiral rod during use of the device, thereby improving the stability and service life of the device during use.

[0020] (3) When the office chair with height adjustment function is in use, a massage component is provided. By starting the driving motor and cooperating with the reciprocating screw, the threaded slider drives the fitting seat to reciprocate in the vertical direction along the inner wall of the massage cavity. At the same time, the fitting spring is used to make the massage roller always fit with the backrest of the seat, so that the back of the occupant can get a better massage effect, thereby improving the comfort of the occupant, reducing the fatigue of the occupant, and improving the work efficiency of the occupant. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of the main body of the present invention;

[0022] Figure 2 It is a schematic diagram of the structure of the present invention in section;

[0023] Figure 3 For the present invention Figure 2 A schematic diagram of the local enlarged structure of the middle A area;

[0024] Figure 4 For the present invention Figure 3 A schematic diagram of the local enlarged structure of the middle B area;

[0025] Figure 5 For the present invention Figure 2 Schematic diagram of the local enlarged structure of the middle C area;

[0026] Figure 6 It is a schematic structural diagram of a cross-section of the fitting seat of the present invention.

[0027] In the figure: 1. base; 2. universal wheel; 3. hydraulic lifting seat; 4. adjustment column; 5. support column; 6. seat; 7. elastic component; 71. rotating knob; 72. worm; 73. screw rod; 74. worm wheel; 75. threaded transmission plate; 76. first telescopic rod; 77. transmission slide plate; 78. buffer spring; 8. clamping component; 81. button; 82. first gear rod; 83. reset spring; 84. gear; 85. transmission plate one; 86. limit tooth; 9. massage cavity; 10. massage component; 101. drive motor; 102. reciprocating screw rod; 103. threaded slider; 104. fitting seat; 105. second telescopic rod; 106. transmission plate two; 107. fitting spring; 108. mounting bracket; 109. massage roller. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. 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.

[0029] See also Figure 1-Figure 6 The present invention provides a technical solution: an office chair with height adjustment function, comprising a base 1, a universal wheel 2 is arranged at the bottom of the base 1, and the office chair can be moved by arranging the universal wheel 2, the upper surface of the base 1 is fixedly connected to the bottom end of a hydraulic lifting seat 3, and the output end of the hydraulic lifting seat 3 is fixedly connected to the bottom end of an adjusting column 4. By arranging the hydraulic lifting seat 3, the height of the adjusting column 4 can be adjusted to be raised or lowered to meet the riding needs of users of different heights, and a support column 5 is slidably installed on the inner wall of the adjusting column 4, and the top of the support column 5 is fixedly connected to the bottom of a seat 6.

[0030] The worm 72 is fixedly connected to the rotating knob 71, and the worm 72 is fixedly connected to the rotating knob 71. By rotating the rotating knob 71, the worm 72 is driven to rotate. A screw rod 73 is rotatably installed on the inner wall of the adjusting column 4. The screw rod 73 is penetrated by a worm gear 74, and the worm gear 74 is fixedly connected to the screw rod 73. The worm gear 74 meshes with the worm 72. A threaded transmission plate 75 is threadedly connected to the outer wall of the screw rod 73. By rotating the screw rod 73, the threaded transmission plate 75 moves in the vertical direction along the inner wall of the adjusting column 4. The upper surface of the threaded transmission plate 75 is fixedly connected to the bottom end of the first telescopic rod 76. The top of the first telescopic rod 76 is fixedly connected to the lower surface of the transmission slide plate 77. The upper surface of 7 is rotatably connected to the bottom end of the support column 5, so that the occupant can rotate it, which is convenient for the occupant to work. The upper surface of the threaded transmission plate 75 is fixedly connected to the bottom end of the buffer spring 78, and the top of the buffer spring 78 is fixedly connected to the lower surface of the transmission slide plate 77. The buffer spring 78 is sleeved on the outer side of the first telescopic rod 76. By providing the elastic component 7, the occupant can first start the hydraulic lifting seat 3 to make the adjustment column 4 fully extended. At this time, the occupant can adjust the maximum deformation distance of the buffer spring 78 when it is squeezed by rotating the rotating knob 71, in conjunction with the threaded transmission plate 75, and then adjust the reverse force provided by the buffer spring 78 when it is squeezed with different forces, in conjunction with the support column 5, so that the seat 6 can provide a better buffering effect when used by occupants of different weights, so as to ensure the comfort of the occupants and avoid that the occupants with heavier weights put too much pressure on the hydraulic lifting seat 3 when sitting, thereby reducing the service life of the device and the stability during use.

[0031] In this embodiment, a clamping assembly 8 is provided inside the adjusting column 4, and the clamping assembly 8 includes a button 81, and the button 81 passes through a first gear rod 82, and the end of the first gear rod 82 is fixedly connected to the button 81. By pressing the button 81, the first gear rod 82 moves in the horizontal direction along the inner wall of the adjusting column 4, and the left outer wall of the button 81 is fixedly connected to the right end of the return spring 83, and the left end of the return spring 83 is fixedly connected to the right outer wall of the adjusting column 4. The return spring 83 is sleeved on the outside of the first gear rod 82, and a gear 84 is rotatably installed on the inner wall of the adjusting column 4. The gear 84 is meshed with the first gear rod 82, and a transmission plate is slidably installed on the inner wall of the adjusting column 4. 85, a rack that can mesh with the gear 84 is arranged on the right outer wall of the transmission plate 85, and a limiting tooth 86 is fixedly installed on the left outer wall of the transmission plate 85. Limiting grooves equal to the limiting tooth 86 are provided on the left and right outer walls of the threaded transmission plate 75. After adjusting the elastic component 7, the limiting tooth 86 is allowed to enter the limiting groove provided on the side wall of the threaded transmission plate 75, so that the threaded transmission plate 75 and the adjusting column 4 are kept in a relatively fixed state, and at the same time, a supporting effect is provided for the threaded transmission plate 75, thereby reducing the wear between the threaded transmission plate 75 and the screw rod 73 during use of the device, thereby improving the stability and service life of the device during use.

[0032] In this embodiment, a massage cavity 9 is opened inside the seat 6, and a massage component 10 is arranged inside the massage cavity 9. The massage component 10 includes a driving motor 101. The driving motor 101 is fixedly installed at the bottom of the massage cavity 9, and a reciprocating screw rod 102 is fixedly installed at the output end of the driving motor 101. The outer wall of the reciprocating screw rod 102 is threadedly connected with a threaded slider 103. By starting the driving motor 101 and cooperating with the reciprocating screw rod 102, the threaded slider 103 reciprocates in the vertical direction along the inner wall of the massage cavity 9. A fitting seat 104 is fixedly installed on the left outer wall of the threaded slider 103. The right side of the inner wall of the fitting seat 104 is fixedly connected to the right end of the second telescopic rod 105. The left end of the second telescopic rod 105 is fixedly connected to the right outer wall of the transmission plate 106. The right end of the spring 107 is fixedly connected, the left end of the fitting spring 107 is fixedly connected to the right side outer wall of the transmission plate 106, the fitting spring 107 is sleeved on the outside of the second telescopic rod 105, the left side outer wall of the transmission plate 106 is fixedly connected to the right end of the mounting frame 108, and a massage roller 109 is arranged on the left end of the mounting frame 108. By providing a massage component 10, by starting the drive motor 101, in conjunction with the reciprocating screw rod 102, the threaded slider 103 drives the fitting seat 104 to reciprocate along the inner wall of the massage cavity 9 in the vertical direction. At the same time, in conjunction with the fitting spring 107, the massage roller 109 is always fitted with the backrest of the seat 6, so that the occupant's back can get a better massage effect, thereby improving the occupant's comfort, reducing the occupant's fatigue, and improving the occupant's work efficiency.

[0033] Working principle: When the office chair with height adjustment function is in use, the hydraulic lifting seat 3 is provided, and then the height of the adjusting column 4 is adjusted to be raised or lowered to meet the riding needs of users of different heights. In order to increase the service life of the device for long-term use by users of different weights, an elastic component 7 is provided, and the occupant can first start the hydraulic lifting seat 3 to make the adjusting column 4 fully extended. At this time, the maximum deformation distance of the buffer spring 78 when squeezed can be adjusted by rotating the rotating knob 71, in conjunction with the threaded transmission plate 75, and then the reverse force provided by the buffer spring 78 when squeezed with different forces can be adjusted, in conjunction with the support column 5, so that the seat 6 can provide a better buffering effect when used by occupants of different weights, so as to ensure the comfort of the occupants, avoid heavy occupants from applying too much pressure to the hydraulic lifting seat 3 when riding, and reduce the use of the device. The service life and stability during use, after adjusting the elastic component 7, the limit tooth 86 is allowed to enter the limit groove provided in the side wall of the threaded transmission plate 75, so that the threaded transmission plate 75 and the adjusting column 4 are kept in a relatively fixed state, and at the same time, a supporting effect is provided for the threaded transmission plate 75, thereby reducing the wear between the threaded transmission plate 75 and the screw rod 73 during use of the device, thereby improving the stability and service life of the device during use. At the same time, by providing a massage component 10, by starting the drive motor 101, in conjunction with the reciprocating screw rod 102, the threaded slider 103 drives the fitting seat 104 to reciprocate in the vertical direction along the inner wall of the massage cavity 9. At the same time, in conjunction with the fitting spring 107, the massage roller 109 is always fitted with the backrest of the seat 6, so that the occupant's back can get a better massage effect, thereby improving the occupant's comfort, reducing the occupant's fatigue, and improving the occupant's work efficiency.

[0034] 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. An office chair with height adjustment function, comprising a base (1), Features: The bottom of the base (1) is provided with a universal wheel (2); the upper surface of the base (1) is fixedly connected to the bottom end of the hydraulic lifting seat (3); the output end of the hydraulic lifting seat (3) is fixedly connected to the bottom end of the adjustment column (4); a support column (5) is slidably mounted on the inner wall of the adjustment column (4); the top end of the support column (5) is fixedly connected to the bottom of the seat (6); an elastic component (7) is provided inside the adjustment column (4) to provide better comfort for users of different weights; and a clamping component (8) is provided inside the adjustment column (4); The elastic component (7) comprises a rotating knob (71), a worm (72) passing through the rotating knob (71), and the end of the worm (72) is fixedly connected to the rotating knob (71); a screw rod (73) is rotatably mounted on the inner wall of the adjusting column (4), the screw rod (73) passes through a worm wheel (74), and the worm wheel (74) is fixedly connected to the screw rod (73); a threaded transmission plate (75) is threadedly connected to the outer wall of the screw rod (73); the upper surface of the threaded transmission plate (75) is fixedly connected to the bottom end of the first telescopic rod (76), the top end of the first telescopic rod (76) is fixedly connected to the lower surface of the transmission slide plate (77), the upper surface of the threaded transmission plate (75) is fixedly connected to the bottom end of the buffer spring (78), and the top end of the buffer spring (78) is fixedly connected to the lower surface of the transmission slide plate (77); The clamping assembly (8) includes a button (81), the button (81) is penetrated by a first gear rod (82), and the end of the first gear rod (82) is fixedly connected to the button (81), the left outer wall of the button (81) is fixedly connected to the right end of the return spring (83), the left end of the return spring (83) is fixedly connected to the right outer wall of the adjustment column (4), the inner wall of the adjustment column (4) is rotatably mounted with a gear (84), the inner wall of the adjustment column (4) is slidably mounted with a transmission plate (85), and the left outer wall of the transmission plate (85) is fixedly mounted with a limiting tooth (86).

2. An office chair with height adjustment function according to claim 1, Features: A massage cavity (9) is provided inside the seat (6), and a massage component (10) is arranged inside the massage cavity (9).

3. An office chair with height adjustment function according to claim 2, Features: The massage component (10) comprises a driving motor (101), a reciprocating screw rod (102) being fixedly mounted on the output end of the driving motor (101), a threaded slider (103) being threadedly connected to the outer wall of the reciprocating screw rod (102), and a fitting seat (104) being fixedly mounted on the left outer wall of the threaded slider (103).

4. An office chair with height adjustment function according to claim 3, Features: The right side of the inner wall of the fitting seat (104) is fixedly connected to the right end of the second telescopic rod (105), the left end of the second telescopic rod (105) is fixedly connected to the right outer wall of the second transmission plate (106), the right side of the inner wall of the fitting seat (104) is fixedly connected to the right end of the fitting spring (107), and the left end of the fitting spring (107) is fixedly connected to the right outer wall of the second transmission plate (106).

5. An office chair with height adjustment function according to claim 4, Features: The left outer wall of the second transmission plate (106) is fixedly connected to the right end of the mounting frame (108), and a massage roller (109) is arranged at the left end of the mounting frame (108).

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