阅读说明：本技术 固定转椅的限位固定器 (Limiting fixer for fixing swivel chair ) 是由 张朝霞 谢旭晨 鄢爱荣 李斌 王学志 王金来 王千千 李林 于 2021-07-27 设计创作，主要内容包括：本发明公开了固定转椅的限位固定器,涉及转椅技术领域。包括底座,所述底座的顶部固定设置有套筒,所述套筒的内部活动设置有支撑柱,所述支撑柱远离套筒的一端固定设置有座椅,所述座椅顶部的一侧固定设置有靠背,所述靠背的一侧固定设置有扶手,所述座椅内部的两侧均活动设置有齿条板,所述齿条板的底部活动设置有半齿轮,所述齿条板与半齿轮的连接关系为啮合连接。通过设置齿条板以及半齿轮,转动的半齿轮利用与齿条板的啮合连接以及配合弹簧的作用力,使得滑块顶部的吹风装置进行往复的水平移动,对吹风位置进行反复的调节,提有利于增加散热面积,使得吹风变得均匀,进一步提高座椅的透气效果。(The invention discloses a limiting fixer for fixing a swivel chair, and relates to the technical field of swivel chairs. The base is included, the fixed sleeve that is provided with in top of base, telescopic inside activity is provided with the support column, telescopic one end is kept away from to the support column and the fixed seat that is provided with, the fixed back that is provided with in one side at seat top, the fixed handrail that is provided with in one side of back, the equal activity in both sides of seat inside is provided with the rack board, the bottom activity of rack board is provided with the pinion, the rack board is connected for the meshing with the hookup relationship of pinion. Through setting up rack plate and semi-gear, pivoted semi-gear utilizes the effort of being connected and cooperation spring with the meshing of rack plate for the blast apparatus at slider top carries out reciprocating horizontal migration, carries out relapse regulation to the position of blowing, and it is favorable to increasing heat radiating area to carry, makes to blow and becomes even, further improves the ventilation effect of seat.)

1. Spacing fixer of fixed swivel chair, including base (1), its characterized in that: a sleeve (101) is fixedly arranged at the top of the base (1), a supporting column (102) is movably arranged in the sleeve (101), a seat (2) is fixedly arranged at one end of the supporting column (102) far away from the sleeve (101), a backrest (201) is fixedly arranged on one side of the top of the seat (2), an armrest (204) is fixedly arranged on one side of the backrest (201), rack plates (4) are movably arranged on two sides of the interior of the seat (2), a half gear (401) is movably arranged at the bottom of the rack plate (4), the rack plate (4) is connected with the half gear (401) in a meshing way, a rotating shaft (402) is fixedly arranged on the inner wall of the half gear (401), a motor (403) is arranged at one end of the rotating shaft (402), the top of the rack plate (4) is fixedly provided with a sliding block (303), and the top of the sliding block (303) is fixedly provided with a blowing device (3).

The inner wall of the base (1) is movably provided with a transmission sleeve (5), the inner wall of the transmission sleeve (5) is movably provided with a protruding shaft (501), the transmission sleeve (5) is movably sleeved with the protruding shaft (501), the back of the protruding shaft (501) is provided with a wheel disc (502), the inner wall of the wheel disc (502) is fixedly provided with a second rotating shaft (503), one end of the second rotating shaft (503) is provided with a second motor (504), one side of the transmission sleeve (5) is fixedly provided with a rack rod (505), the bottom of the rack rod (505) is movably provided with a gear (6), the inner wall of the gear (6) is fixedly provided with a rotating rod (601), the surface of the rotating rod (601) is fixedly provided with an adjusting rod (602), one end of the adjusting rod (602) is provided with a pulley (603), the two sides of the base (1) are fixedly provided with a box body (7), the inside activity of box (7) is provided with fixer (701), one end of fixer (701) is located recess (801) on deck (8).

2. The restraint holder for securing a swivel chair as claimed in claim 1, wherein: the surface of the supporting column (102) is fixedly provided with a main bevel gear (103), one side of the main bevel gear (103) is movably provided with a secondary bevel gear (104), and the main bevel gear (103) is in meshed connection with the secondary bevel gear (104).

3. The restraint holder for securing a swivel chair as claimed in claim 1, wherein: through-hole (205) have been seted up to the upper surface of seat (2), the top of seat (2) is provided with cushion (206), the bleeder vent has been seted up on cushion (206).

4. The restraint holder for securing a swivel chair as claimed in claim 1, wherein: the blowing device (3) is composed of a cover body (301) and a fan (302), and the fan (302) is arranged in the cover body (301).

5. A retention anchor for securing a swivel chair as claimed in claim 5, wherein: the inner side of the sliding block (303) is provided with a sliding groove, the inner wall of the sliding groove is movably provided with a sliding rod (304), and the surface of the sliding rod (304) is sleeved with a spring (305).

6. The restraint holder for securing a swivel chair as claimed in claim 1, wherein: one side at rack bar (505) top is fixed and is provided with sliding sleeve (506), the spout has been seted up to the inner wall of sliding sleeve (506), and the inner wall activity of spout is provided with bracing piece (507).

7. The restraint holder for securing a swivel chair as claimed in claim 1, wherein: the clamping grooves are formed in two sides of the inner wall of the groove (801), clamping blocks (802) are movably arranged on the inner wall of the clamping grooves, and the clamping grooves in the groove (801) are connected with the clamping blocks (802) in a clamping mode.

8. The restraint holder of claim 7 wherein: a second sliding block (803) is movably arranged on one side of the top of the clamping block (802), a fixing rod (804) is fixedly arranged on the top of the second sliding block (803), a nut seat (805) is fixedly arranged at one end of the fixing rod (804), a screw rod (806) is movably arranged on the inner wall of the nut seat (805), and the nut seat (805) is in threaded connection with the screw rod (806) through a ball.

9. The restraint holder of claim 7 wherein: a movable plate (9) is fixedly arranged on one side of the bottom of the clamping block (802), a sliding groove is formed in the inner side of the movable plate (9), a movable rod (901) is movably arranged on the inner wall of the sliding groove, and a second spring (902) is sleeved on the surface of the movable rod (901).

10. The restraint holder for securing a swivel chair as claimed in claim 1, wherein: the inner wall of the fixer (701) is provided with a thread groove, the inner wall of the thread groove is movably provided with a threaded rod (702), and the fixer (701) is in threaded connection with the threaded rod (702).

Technical Field

The invention relates to the technical field of swivel chairs, in particular to a limiting fixer for fixing a swivel chair.

Background

The swivel chair is one of computer chairs and office chairs, and is a chair with a rotatable sitting part. The swivel chair can be divided into a half swivel chair and a full swivel chair,

fixed problem needs to be solved to marine swivel chair, current marine swivel chair is generally connected swivel chair stainless steel hole department and pre-buried nut with the bolt, can realize fixing, when the bolt twists the nut, need use special instrument, twist and twist out and waste time and energy, the person of not being convenient for uses, current swivel chair has the relatively poor problem of air permeability, can produce adverse effect to user's health for a long time, current general bottom of swivel chair can be provided with the pulley, because the pulley can't be accomodate, bear great gravity for a long time, can grind the pulley gradually, and the service life is shortened.

Disclosure of Invention

The invention provides a limiting fixer for fixing a swivel chair, which has the advantages of quick fixation of the swivel chair, good air permeability and capability of accommodating pulleys, and solves the problems of complicated fixing steps, poor air permeability and pulley abrasion.

In order to realize the purposes of quick fixation, good air permeability and storage of pulleys, the invention provides the following technical scheme: the limiting fixer for the fixed swivel chair comprises a base, a sleeve is fixedly arranged at the top of the base, a support column is movably arranged in the sleeve, a seat is fixedly arranged at one end of the support column far away from the sleeve, a backrest is fixedly arranged on one side of the top of the seat, an armrest is fixedly arranged on one side of the backrest, rack plates are movably arranged on two sides of the inside of the seat, a half gear is movably arranged at the bottom of each rack plate, the rack plates are connected with the half gear in a meshed mode, a rotating shaft is fixedly arranged on the inner wall of each half gear, a motor is arranged at one end of the rotating shaft, a sliding block is fixedly arranged at the top of each rack plate, and a blowing device is fixedly arranged at the top of the sliding block.

The inside both sides of base are all movable and are provided with the transmission cover, the inner wall activity of transmission cover is provided with protruding axle, the transmission cover cup joints for the activity with the relation of connection of protruding axle, the back of protruding axle is provided with the rim plate, the fixed second pivot that is provided with of inner wall of rim plate, the one end of second pivot is provided with the second motor, the fixed rack bar that is provided with in one side of transmission cover, the bottom activity of rack bar is provided with the gear, the fixed dwang that is provided with of inner wall of gear, the fixed surface of dwang is provided with the regulation pole, the one end of adjusting the pole is provided with the pulley, the both sides of base are all fixed and are provided with the box, the inside activity of box is provided with the fixer, the one end of fixer is located the recess on the deck.

As a preferable technical solution of the present invention, a main bevel gear is fixedly disposed on a surface of the support column, a slave bevel gear is movably disposed on one side of the main bevel gear, and a connection relationship between the main bevel gear and the slave bevel gear is a meshing connection.

As a preferable technical scheme of the invention, the upper surface of the seat is provided with a through hole, the top of the seat is provided with a cushion, and the cushion is provided with an air hole.

As a preferable technical scheme of the invention, the blowing device consists of a cover body and a fan, and the fan is arranged in the cover body.

As a preferred technical scheme of the invention, the inner side of the sliding block is provided with a sliding chute, the inner wall of the sliding chute is movably provided with a sliding rod, and the surface of the sliding rod is sleeved with a spring.

As a preferred technical scheme of the invention, one side of the top of the rack bar is fixedly provided with a sliding sleeve, the inner wall of the sliding sleeve is provided with a sliding groove, and the inner wall of the sliding groove is movably provided with a supporting rod.

As a preferred technical scheme of the invention, the two sides of the inner wall of the groove are both provided with clamping grooves, the inner wall of each clamping groove is movably provided with a clamping block, and the clamping grooves on the groove are connected with the clamping blocks in a clamping manner.

As a preferred technical scheme of the present invention, a second slider is movably disposed on one side of the top of the fixture block, a fixing rod is fixedly disposed on the top of the second slider, a nut seat is fixedly disposed at one end of the fixing rod, a screw rod is movably disposed on the inner wall of the nut seat, and the nut seat is in threaded connection with the screw rod through a ball.

As a preferred technical scheme of the invention, a movable plate is fixedly arranged on one side of the bottom of the clamping block, a sliding groove is formed in the inner side of the movable plate, a movable rod is movably arranged on the inner wall of the sliding groove, and a second spring is sleeved on the surface of the movable rod.

As a preferable technical scheme of the present invention, the inner wall of the fixer is provided with a thread groove, the inner wall of the thread groove is movably provided with a threaded rod, and the fixer and the threaded rod are connected in a threaded manner.

Compared with the prior art, the invention provides a limiting fixer for fixing a swivel chair, which has the following beneficial effects:

1. this spacing fixer of fixed swivel chair through setting up rack plate and semi-gear, pivoted semi-gear utilizes the effort of being connected and cooperation spring with the meshing of rack plate for the blast apparatus at slider top carries out reciprocal horizontal migration, carries out the regulation of relapseing to the position of blowing, carries to be favorable to increasing heat radiating area, makes to blow and becomes even, further improves the ventilation effect of seat.

2. This spacing fixer of fixed swivel chair, through setting up the transmission cover, the protruding axle, the rim plate, the rack bar, the gear, the dwang, adjust pole and pulley, the pivoted rim plate utilizes the activity of protruding axle and transmission cover to cup joint and drives the rack bar and carry out horizontal migration, the rack bar under the moving state utilizes the pulley of being connected with the meshing of gear and driving regulation pole one end to rotate, thereby accomodate and expand the pulley, when can effectually guarantee that the swivel chair is unmovable, what the swivel chair can stabilize places subaerially, can not cause the damage to the pulley, the life of effectual improvement pulley.

3. This spacing fixer of fixed swivel chair through setting up support column, main bevel gear and from bevel gear, just can utilize main bevel gear and connect the seat that drives support column one end from bevel gear to rotate to turning to of seat is adjusted, satisfies user's demand.

4. This spacing fixer of fixed swivel chair, through setting up the fan, the wind-force of fan dispels the heat to user's buttock, improves the ventilation effect of seat, and reinforcing user's comfort level does benefit to user's healthy.

5. This spacing fixer of fixed swivel chair through setting up draw-in groove and fixture block on the recess, just can utilize the joint of fixture block and draw-in groove, realizes quick fixed between fixer and the deck, and can be quick remove the stationary state, and the stationary phase is comparatively simple and easy, need not use tools, saves time and laborsaving, improves fixed effect.

6. This spacing fixer of fixed swivel chair through setting up fixture block, second slider, dead lever, nut seat and lead screw, just can utilize the threaded connection of lead screw and nut seat, drives the second slider and carries out the vertical migration, and the second slider under the mobile state can make the fixture block carry out horizontal migration, and fixture block one side gets into on the recess in the draw-in groove can fix the swivel chair, and fixture block one side breaks away from the draw-in groove and can relieve the fixed to the swivel chair.

Drawings

FIG. 1 is a schematic view of a position-limiting holder for a swivel chair according to the present invention;

FIG. 2 is a front view of the present invention showing the construction of a restraint holder for holding a swivel chair;

FIG. 3 is an enlarged view of the portion A of the limiting holder of the swivel chair of the present invention;

FIG. 4 is a schematic view of the half-gear structure of the limit retainer of the fixed swivel chair of the present invention;

FIG. 5 is a schematic view of the motor structure of the limit retainer for fixing the swivel chair according to the present invention;

FIG. 6 is a schematic view of the protruding shaft structure of the position-limiting holder of the swivel chair of the present invention;

FIG. 7 is a schematic structural view of a second motor of the limiting holder of the fixed swivel chair of the present invention;

FIG. 8 is a schematic view of the gear structure of the position-limiting holder of the present invention;

fig. 9 is a schematic view of the structure of the fixing device of the limit fixing device for fixing the swivel chair of the present invention.

In the figure: 1. a base; 101. a sleeve; 102. a support pillar; 103. a main bevel gear; 104. from the bevel gear; 2. a seat; 201. a backrest; 204. a handrail; 3. a blowing device; 205. a through hole; 206. a cushion; 301. a cover body; 302. a fan; 303. a slider; 304. a slide bar; 305. a spring; 4. a rack plate; 401. a half gear; 402. a rotating shaft; 403. a motor; 5. a transmission sleeve; 501. a protruding shaft; 502. a wheel disc; 503. a second rotating shaft; 504. a second motor; 505. a rack bar; 506. a sliding sleeve; 507. a support bar; 6. a gear; 601. rotating the rod; 602. adjusting a rod; 603. a pulley; 7. a box body; 701. a holder; 702. a threaded rod; 8. a deck; 801. a groove; 802. a clamping block; 803. a second slider; 804. fixing the rod; 805. a nut seat; 806. a screw rod; 9. a movable plate; 901. a movable rod; 902. a second spring.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-9, the present invention discloses a limit fixer for fixing a swivel chair, which comprises a base 1, the top of the base 1 is fixedly provided with a sleeve 101, the inside of the sleeve 101 is movably provided with a support column 102, a seat 2 is fixedly arranged at one end of the supporting column 102 far away from the sleeve 101, a backrest 201 is fixedly arranged at one side of the top of the seat 2, an armrest 204 is fixedly arranged on one side of the backrest 201, rack plates 4 are movably arranged on both sides of the interior of the seat 2, the bottom of the rack plate 4 is movably provided with a half gear 401, the connection relationship between the rack plate 4 and the half gear 401 is engagement connection, a rotating shaft 402 is fixedly arranged on the inner wall of the half gear 401, a motor 403 is arranged at one end of the rotating shaft 402, the model of the motor 403 is Y135L1-4, the top of the rack plate 4 is fixedly provided with a sliding block 303, and the top of the sliding block 303 is fixedly provided with a blowing device 3.

The equal activity in both sides of base 1 inside is provided with the transmission cover 5, the inner wall activity of transmission cover 5 is provided with protruding axle 501, transmission cover 5 cup joints for the activity with protruding axle 501's connection, the back of protruding axle 501 is provided with rim plate 502, the fixed second pivot 503 that is provided with of inner wall of rim plate 502, the one end of second pivot 503 is provided with second motor 504, and the model of second motor 504 is Y135L1-4, the fixed rack bar 505 that is provided with in one side of transmission cover 5, the bottom activity of rack bar 505 is provided with gear 6, the fixed dwang 601 that is provided with in inner wall of gear 6, the fixed surface of dwang 601 is provided with adjusts the pole 602, the one end of adjusting pole 602 is provided with pulley 603, the both sides of base 1 are all fixed and are provided with box 7, the inside activity of box 7 is provided with fixer 701, the one end of fixer 701 is located the recess 801 on deck 8, the two sides of the fixer 701 are provided with limit blocks, the limit blocks are positioned in the limit grooves, and the limit blocks and the limit grooves can prevent the threaded rod 702 from being separated from the fixer 701.

Specifically, a main bevel gear 103 is fixedly arranged on the surface of the support column 102, a slave bevel gear 104 is movably arranged on one side of the main bevel gear 103, and the main bevel gear 103 is in meshing connection with the slave bevel gear 104.

In this embodiment, by providing the supporting column 102, the main bevel gear 103 and the auxiliary bevel gear 104, the seat 2 at one end of the supporting column 102 can be driven to rotate by the meshing connection of the main bevel gear 103 and the auxiliary bevel gear 104, so that the steering of the seat 2 can be adjusted to meet the requirements of users.

Specifically, the upper surface of the seat 2 is provided with a through hole 205, the top of the seat 2 is provided with a cushion 206, and the cushion 206 is provided with an air hole.

In this embodiment, the ventilation effect of the seat 2 can be enhanced by the through holes 205 and the ventilation holes on the seat cushion 206, so as to prevent excessive heat accumulation on the hip of the user.

Specifically, the blowing device 3 is composed of a cover 301 and a fan 302, and the fan 302 is arranged inside the cover 301.

In this embodiment, through setting up fan 302, the wind-force of fan 302 dispels the heat to user's buttock, improves the ventilation effect of seat 2, strengthens user's comfort level, does benefit to user's healthy.

Specifically, a sliding groove is formed in the inner side of the sliding block 303, a sliding rod 304 is movably arranged on the inner wall of the sliding groove, and a spring 305 is sleeved on the surface of the sliding rod 304.

In this embodiment, by providing the spring 305, the urging force of the spring 305 can give a certain thrust to the blowing device 3, and the driving force of the rack plate 4 with the half gear 401 is matched, so that the blowing device 3 performs reciprocating horizontal movement.

Specifically, a sliding sleeve 506 is fixedly arranged on one side of the top of the rack bar 505, a sliding groove is formed in the inner wall of the sliding sleeve 506, and a supporting rod 507 is movably arranged on the inner wall of the sliding groove.

In this embodiment, by providing the sliding sleeve 506 and the support rod 507, the rack bar 505 can be stably moved horizontally by using the sliding connection between the support rod 507 and the sliding sleeve 506.

Specifically, the two sides of the inner wall of the groove 801 are both provided with clamping grooves, the inner wall of each clamping groove is movably provided with a clamping block 802, and the clamping grooves in the groove 801 are connected with the clamping blocks 802 in a clamping manner.

In this embodiment, through setting up draw-in groove and fixture block 802 on the recess 801, just can utilize the joint of fixture block 802 and draw-in groove, realize quick fixed between fixer 701 and the deck 8, and can be quick remove the stationary state, fixed process is comparatively simple and easy, need not use tools, saves time and laborsaving, improves fixed effect.

Specifically, a second sliding block 803 is movably arranged on one side of the top of the clamping block 802, a fixing rod 804 is fixedly arranged on the top of the second sliding block 803, a nut seat 805 is fixedly arranged at one end of the fixing rod 804, a screw rod 806 is movably arranged on the inner wall of the nut seat 805, the nut seat 805 is in threaded connection with the screw rod 806 through a ball, a first bevel gear is arranged on the surface of the screw rod 806, and a second bevel gear is meshed and connected to one side of the first bevel gear, so that a user can rotate the screw rod 806 conveniently.

In this embodiment, by providing the fixture block 802, the second slider 803, the fixing rod 804, the nut seat 805 and the lead screw 806, the second slider 803 can be driven to move vertically by using the threaded connection between the lead screw 806 and the nut seat 805, the fixture block 802 can move horizontally by the second slider 803 in a moving state, one side of the fixture block 802 enters the slot on the groove 801 to fix the swivel chair, and the other side of the fixture block 802 is separated from the slot to release the fixation of the swivel chair.

Specifically, a movable plate 9 is fixedly arranged on one side of the bottom of the clamping block 802, a sliding groove is formed in the inner side of the movable plate 9, a movable rod 901 is movably arranged on the inner wall of the sliding groove, and a second spring 902 is sleeved on the surface of the movable rod 901.

In this embodiment, by arranging the movable plate 9, the movable rod 901 and the second spring 902, the acting force of the second spring 902 makes the inclined surface of the latch 802 and the inclined surface of the second slider 803 stick together, and when the second slider 803 vertically moves, the latch 802 horizontally moves.

Specifically, a thread groove is formed in the inner wall of the fixer 701, a threaded rod 702 is movably arranged on the inner wall of the thread groove, and the fixer 701 is in threaded connection with the threaded rod 702.

In this embodiment, by providing the threaded rod 702 and the anchor 701, the anchor 701 can be vertically moved by the threaded connection between the threaded rod 702 and the anchor 701, and the anchor 701 can be accommodated or deployed.

The working principle and the using process of the invention are as follows: when the swivel chair is used, the swivel chair body is moved to a designated position, the second motor 504 drives the wheel disc 502 to rotate through the second rotating shaft 503, the rotating wheel disc 502 utilizes the movable sleeve joint of the convex shaft 501 and the transmission sleeve 5 to drive the rack rod 505 to horizontally move, the rack rod 505 in a moving state utilizes the meshing connection with the gear 6 to drive the pulley 603 at one end of the adjusting rod 602 to rotate so as to receive and unfold the pulley 603, the threaded rod 702 is rotated, the threaded connection between the threaded rod 702 and the fixer 701 is utilized to enable the fixer 701 to vertically move, one end of the fixer 701 enters the inside of the groove 801, the screw rod 806 is rotated, the threaded connection between the screw rod 806 and the nut seat 805 is utilized to drive the second slide block 803 to vertically move, the second slide block 803 in a moving state can enable the fixture block 802 to horizontally move, one side of the fixture block 802 enters the clamping groove on the groove 801 to fix the swivel chair, fixture block 802 one side breaks away from the draw-in groove and can removes the fixed to the swivel chair, utilize main bevel gear 103 and connect the seat 2 that drives support column 102 one end from the meshing of bevel gear 104 and rotate, thereby adjust turning to seat 2, motor 403 drives half gear 401 through pivot 402 and rotates, it carries out horizontal migration to utilize half gear 401 to be connected with the meshing of rack plate 4 to drive blast apparatus 3, cooperation spring 305's effort, make blast apparatus 3 carry out reciprocating horizontal migration, reciprocating's fan 302 carries out even heat dissipation to user's buttock, further improve seat 2's ventilation effect.

To sum up, the limiting fixer of the fixed swivel chair can utilize the meshing connection of the main bevel gear 103 and the auxiliary bevel gear 104 to drive the seat 2 at one end of the supporting column 102 to rotate by arranging the supporting column 102, the main bevel gear 103 and the auxiliary bevel gear 104, thereby adjusting the steering of the seat 2, meeting the requirements of users, enhancing the ventilation effect of the seat 2 by arranging the through hole 205 and the ventilation hole on the cushion 206, preventing the heat accumulation of the hip of the user from being too much, dissipating the heat of the hip of the user by arranging the fan 302 by the wind power of the fan 302, improving the ventilation effect of the seat 2, enhancing the comfort of the user, being beneficial to the health of the user, and being provided with the spring 305, the acting force of the spring 305 can give certain thrust to the blowing device 3 by matching the transmission force of the half gear 401 and the rack plate 4, the blowing device 3 can move horizontally in a reciprocating way, the rack bar 505 can move horizontally stably by the sliding connection between the support rod 507 and the sliding sleeve 506 through the arrangement of the sliding sleeve 506 and the support rod 507, the fixing between the fixer 701 and the deck 8 can be quickly realized by the clamping between the clamping block 802 and the clamping groove through the arrangement of the clamping groove on the groove 801 and the clamping block 802, the fixing state can be quickly released, the fixing process is simple, no tool is needed, time and labor are saved, the fixing effect is improved, the threaded connection between the screw rod 806 and the nut seat 805 can be utilized through the arrangement of the clamping block 802, the second sliding block 803 in a moving state can enable the clamping block 802 to move horizontally, and the swivel chair can be fixed when one side of the clamping block 802 enters the clamping groove on the groove 801, the fixture block 802 can be released from being fixed by separating from the clamping groove on one side, through the arrangement of the movable plate 9, the movable rod 901 and the second spring 902, the acting force of the second spring 902 enables the inclined surface of the fixture block 802 to be attached to the inclined surface of the second slider 803, when the second slider 803 vertically moves, the fixture block 802 horizontally moves, through the arrangement of the threaded rod 702 and the fixture 701, the threaded rod 702 can be connected with the fixture 701 through threads, so that the fixture 701 vertically moves, and the fixture 701 is accommodated or unfolded.

It should be noted that, in this document, terms such as "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.