CN219920652U - Waist support adjusting structure of office chair - Google Patents

Abstract

The utility model discloses an office chair waist support adjusting structure, which belongs to the technical field of office chairs and comprises an office chair, a chute A, a fixing frame, a chute B, a sliding frame A, a waist support, a rubber support and polyester mesh cloth, wherein the chute A is embedded in the side of the office chair, the fixing frame is fixedly arranged below the side, close to the chute A, of the office chair, the chute B is embedded in the side, and the sliding frame A is arranged between the chute B and the inner side of the chute A in a sliding way through a sliding block. According to the utility model, after the waist support is limited, the adjusting screw A is reversely or positively screwed and rotated under the sliding frame A through the bearing and rotated through the bearing, so that the adjusting screw A is in threaded engagement rotation at the inner side of the threaded groove A, the sliding frame A is pushed to slide downwards or upwards between the sliding groove B and the inner side of the sliding groove A to a proper position, the waist support is driven to be adjusted to a proper position, a worker can conveniently and freely adjust the waist support to a proper position, and the waist is more comfortable when leaning against the surface of the mesh cloth on the waist support side Fang Diguan.

Description

Waist support adjusting structure of office chair

Technical Field

The utility model belongs to the technical field of office chairs, and particularly relates to an office chair waist support adjusting structure.

Background

Office chairs are chairs which are provided for comfort and convenience in sitting postures during work, and define backrest chairs for people to sit on when performing tabletop work in sitting postures, so that an adjusting structure of waist supports of the office chairs is needed.

According to the application number CN202222429768.3, the waist support adjusting device of the office chair is found through searching, and the waist support adjusting device of the office chair is provided with the function that the sliding rod slides up and down in the sliding frame, and the sliding plate slides up and down on the side surface of the mounting plate, so that the horizontal height of the waist support plate can be quickly adjusted, and the waist support plate can be adapted to various crowds; the screw thread post rotates in the screw thread ring to move, so that the extrusion plate at the end part of the screw thread post is clung to the mounting plate, the positive pressure between the sliding rod and the sliding frame is greatly increased, the sliding rod and the sliding frame are kept fixed, the sliding plate can be quickly fixed on the mounting plate, and the sliding plate can be fixed at any height; the disadvantages are as follows:

when the staff uses this kind of office chair waist to hold in palm adjusting device, rotate the screw thread post and make it remove in the screwed ring, make the stripper plate keep away from the mounting panel, reciprocate the sliding plate again, make the carriage release lever reciprocate in the slip frame, adjust to suitable height with the waist layer board, and when carrying out the altitude mixture control to the waist layer board, only single through the bolt extrusion at office chair main part surface, spacing to the waist layer board, and because not spacing to the bolt, can make the bolt produce the slip at office chair main part surface easily, and make the waist layer board become flexible easily, result in this kind of office chair waist to hold in the palm adjusting device's altitude mixture control effect relatively poor.

Disclosure of Invention

The utility model aims at: in order to solve the problem that the height adjusting effect of the office chair waist support adjusting device is relatively poor, the office chair waist support adjusting structure is provided.

The technical scheme adopted by the utility model is as follows: the utility model provides an office chair waist holds in palm adjustment structure, includes office chair, spout A, mount, spout B, carriage A, waist holds in the palm, rubber strut and dacron screen cloth, office chair side embedding is provided with spout A, office chair side is close to spout A below fixed mounting and has the mount, mount side embedding is provided with spout B, be provided with carriage A through the slider slip between spout B and the spout A inboard, carriage A side is provided with the waist and holds in the palm, and the waist holds in the palm and be the slope form setting, relative fixed mounting has the rubber strut around the waist holds in the palm side, and the rubber strut is the arc form setting, fixed mounting has dacron screen cloth between the rubber strut, the carriage A outside is provided with the slip adjustment mechanism who facilitates the user to adjust waist and holds in the palm the position, the waist holds in the palm the outside and is provided with the waist that facilitates the user to hold in the palm radian adjustment mechanism.

The sliding adjusting mechanism comprises a sliding frame B, a limiting groove A, a sliding groove C, a damping telescopic rod A, a limiting block, a thread groove A and an adjusting screw A, wherein the sliding frame B is arranged on the inner side of the sliding frame A in a sliding mode, the waist support side is fixedly arranged on the side of the sliding frame B, the limiting groove A is embedded in the upper portion of the sliding frame B and is formed by a plurality of the same distance side by side, the sliding groove C is embedded in the upper portion of the inner wall of the sliding frame A, the limiting block is arranged on the inner side of the sliding groove C in a sliding mode, the limiting block is arranged on the inner side of the limiting groove A in a matching mode, the damping telescopic rod A is fixedly arranged between the upper portion of the limiting block and the upper portion of the inner wall of the sliding groove C, a spring is arranged on the outer side of the damping telescopic rod A in a matched mode, the side of the fixing frame is close to the lower portion of the sliding frame A in an embedded mode, the thread groove A is rotatably arranged on the inner side of the adjusting screw A in a rotating mode, and the upper portion of the end portion of the adjusting screw A is rotatably arranged on the inner side of the lower portion of the sliding frame A through a bearing.

The waist holds in palm radian adjustment mechanism by adjustment tank, carriage C, spacing groove B, spout D, spacing and damping telescopic link B constitute, rubber strut side fixed mounting has carriage C, and carriage C is "U" shape setting, the relative embedding in waist holds in the palm side is provided with the adjustment tank, the adjustment tank has four, and every two are relative parallel arrangement, and carriage C agrees with the slip setting inboard at the adjustment tank, the equal embedding in carriage C upper and lower side is provided with spacing groove B, spacing groove B has a plurality of, and is the equidistance and side by side sets up, waist holds in the palm the side of the inner wall and all imbeds and be provided with spout D near adjustment tank department, the inboard slip of spout D is provided with the limit, and the limit agrees with the slip setting inboard at spacing groove B, fixed mounting has damping telescopic link B between limit and the spout D inner wall top, and the supporting spring that is provided with in the outside the damping telescopic link B.

In summary, due to the adoption of the technical scheme, the beneficial effects of the utility model are as follows:

1. this kind of office chair waist holds in palm adjustment structure through being provided with sliding adjustment mechanism, can make the staff pass through carriage B, spacing groove A, spout C, damping telescopic link A, the stopper, cooperation between thread groove A and the adjusting screw A, promote stopper roll-off spacing groove A after, make things convenient for the staff to promote waist to hold in the palm and drive carriage B and slide in carriage A inboard, adjust the waist to hold in the palm suitable position, and freely drive the waist through twisting adjusting screw A and hold in the palm and adjust suitable height, make things convenient for the staff to freely hold in the palm the waist with the waist and adjust suitable position, make the waist more comfortable when leaning on the waist to hold in the palm side Fang Diguan screen cloth surface.

2. This kind of office chair waist holds in palm adjustment structure through being provided with waist and holds in palm radian adjustment mechanism, can make the staff pass through adjustment tank, carriage C, spacing groove B, spout D, cooperation between spacing and the damping telescopic link B, promote behind spacing roll-off spacing groove B, promote the rubber strut and produce deformation, promote carriage C and slide in the adjustment tank inboard, make the rubber strut of deformation change polyester screen cloth to suitable radian, make things convenient for the staff to freely adjust the waist and hold in the palm to suitable self waist and lean on the radian, make the waist more comfortable when leaning on polyester screen cloth surface.

Drawings

Fig. 1 is a schematic diagram of an office chair of the present utility model in front perspective;

FIG. 2 is a schematic diagram of a front cross-sectional structure of an office chair according to the present utility model;

FIG. 3 is a schematic diagram of the enlarged construction of FIG. 2 at A in accordance with the present utility model;

FIG. 4 is a schematic diagram of the enlarged structure of FIG. 2B in accordance with the present utility model;

fig. 5 is a schematic diagram showing the second enlarged structure of the embodiment a in fig. 2 according to the present utility model.

The marks in the figure: 1. office chairs; 101. a chute A; 102. a fixing frame; 1021. a chute B; 103. a sliding frame A; 104. a sliding frame B; 105. a limit groove A; 106. a chute C; 107. damping telescopic rod A; 108. a limiting block; 109. a thread groove A; 2. adjusting the screw A; 3. a waist support; 301. a rubber bracket; 302. polyester mesh cloth; 303. an adjustment tank; 304. a sliding frame C; 305. a limit groove B; 306. a chute D; 307. a limiting frame; 308. damping telescopic rod B; 4. a thread groove B; 401. and adjusting the screw B.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the utility model, the following components are added:

embodiment one: referring to fig. 1-5, an office chair waist holds in palm adjustment structure, including office chair 1, spout a101, mount 102, spout B1021, carriage a103, waist holds in the palm 3, rubber strut 301 and dacron screen cloth 302, office chair 1 side embedding is provided with spout a101, office chair 1 side is close to spout a101 below fixed mounting and has mount 102, mount 102 side embedding is provided with spout B1021, be provided with carriage a103 through the slider slip between spout B1021 and the spout a101 inboard, carriage a103 side is provided with waist and holds in the palm 3, and waist holds in the palm 3 and be the slope form setting, relative fixed mounting has rubber strut 301 around the waist holds in the palm 3 side, and rubber strut 301 is the arc form setting, fixed mounting has dacron screen cloth 302 between the rubber strut 301, the carriage a103 outside is provided with the slip adjustment mechanism who facilitates the user to adjust the waist and holds in the palm the position, waist holds in the palm 3 outside is provided with the waist that facilitates the user to adjust the waist and holds in the radian adjustment mechanism.

Referring to fig. 1, 2 and 4, the sliding adjustment mechanism is further composed of a sliding frame B104, a limit groove a105, a sliding groove C106, a damping telescopic rod a107, a limit block 108, a thread groove a109 and an adjustment screw A2;

the inner side of the sliding frame A103 is slidably provided with a sliding frame B104, the side of the waist support 3 is fixedly arranged on the side of the sliding frame B104, a limit groove A105 is embedded above the sliding frame B104, a plurality of limit grooves A105 are arranged in parallel at equal intervals, a sliding groove C106 is embedded above the inner wall of the sliding frame A103, a limiting block 108 is slidably arranged inside the sliding groove C106, the limiting block 108 is matched with the inner side of the limit groove A105 in a sliding manner, a damping telescopic rod A107 is fixedly arranged between the upper side of the limiting block 108 and the upper side of the inner wall of the sliding groove C106, a spring is arranged outside the damping telescopic rod A107 in a matched manner, an adjusting screw A2 is arranged on the inner side of the screw groove A109 in a screwed-engaged manner and rotationally near the lower side of the sliding frame A103, the upper end part of the adjusting screw A2 is rotationally arranged on the inner side below the sliding frame A103 through a bearing, when a worker needs to use the office chair 1, the waist support 3 is pushed to drive the sliding frame B104 to slide on the inner side of the sliding frame A103 after the damping telescopic rod A107 and the outer side spring are driven to shrink after the limiting block 108 is pushed to slide on the surface of the terylene mesh 302 of the waist support 3 by sitting on the surface of the office chair 1, the waist support 3 is pushed to slide on the inner side of the sliding frame A103, after the waist support 3 is positioned at a proper position, a worker releases the limiting block 108, the damping telescopic rod A107 and the outer side spring pop-up limiting block 108 slide on the inner side of one of the opposite limiting grooves A105, after the waist support 3 is limited, the adjusting screw A2 is reversely or positively screwed and rotated through a bearing under the sliding frame A103 to rotate through the bearing, the adjusting screw A2 is led to be meshed and rotated on the inner side of the thread groove A109, the sliding frame A103 is pushed to slide downwards or upwards between the sliding groove B1021 and the inner side of the sliding groove A101 to be adjusted to the proper position, the waist support 3 is conveniently adjusted to the proper position by the worker, making the waist more comfortable when leaning against the surface of the side polyester mesh cloth 302 of the waist support 3.

Referring to fig. 1-3, further, the waist support radian adjusting mechanism is composed of an adjusting groove 303, a sliding frame C304, a limiting groove B305, a sliding groove D306, a limiting frame 307 and a damping telescopic rod B308;

the side of the rubber supporting frame 301 is fixedly provided with a sliding frame C304, the sliding frame C304 is U-shaped, the front and back sides of the side of the waist support 3 are oppositely embedded with adjusting grooves 303, the number of the adjusting grooves 303 is four, each two of the adjusting grooves are oppositely arranged in parallel, the sliding frames C304 are matched and slidably arranged at the inner side of the adjusting grooves 303, the upper and lower sides of the sliding frame C304 are respectively embedded with a limiting groove B305, a plurality of limiting grooves B305 are equidistantly arranged in parallel, the side of the inner wall of the waist support 3, close to the adjusting grooves 303, are respectively embedded with a sliding groove D306, the inner side of the sliding groove D306 is slidably provided with a limiting frame 307, the limiting frame 307 is matched and slidably arranged at the inner side of the limiting groove B305, a damping telescopic rod B308 is fixedly arranged between the upper side of the limiting frame 307 and the upper side of the inner wall of the sliding groove D306, the outer side of the damping telescopic rod B308 is provided with a spring in a matched manner, when a worker freely adjusts the waist support 3 to a proper position, the four limiting frames 307 are pushed to slide out of the limiting grooves B305, and after the damping telescopic rods B308 and the outer springs are driven to contract, the waist of the worker leans against the surface of the side polyester mesh 302 of the waist support 3, the rubber support 301 is pushed to deform, the sliding frame C304 is pushed to slide on the inner side of the adjusting groove 303, the deformed rubber support 301 changes the polyester mesh 302 to a proper radian, the worker releases the limiting frames 307, the damping telescopic rods B308 and the outer springs are ejected out of the limiting frames 307 to slide into the inner sides of the opposite limiting grooves B305, the waist leaning radian of the waist support 3 is completed after the sliding frame C304 is fixed, the waist leaning radian of the worker is conveniently adjusted freely, and the waist leans against the surface of the polyester mesh 302 is more comfortable.

Example two

As shown in FIG. 5, in the embodiment that the upper and lower sides of the sliding frame C304 are respectively embedded with the limiting groove B305, the limiting grooves B305 are provided with a plurality of equidistant parallel arrangement, the side parts of the inner wall of the waist support 3, which are close to the adjusting groove 303, are respectively embedded with the sliding groove D306, the inner side of the sliding groove D306 is provided with the limiting frame 307 in a sliding manner, the limiting frame 307 is matched with the inner side of the limiting groove B305, the damping telescopic rod B308 is fixedly arranged between the upper side of the limiting frame 307 and the upper side of the inner wall of the sliding groove D306, the outer side of the damping telescopic rod B308 is provided with the spring in a matching manner, in addition, another embodiment exists, the upper and lower sides of the sliding frame C304 are respectively provided with the adjusting screw B401 through bearings in a rotating manner, the side parts of the inner wall of the waist support 3, which are close to the adjusting groove 303 are embedded with the threaded groove B4, the threaded engagement of the adjusting screw B401 is arranged on the inner side of the threaded groove B4, when a worker needs to adjust the waist support radian of the waist support 3, the adjusting screw B401 is screwed down through the bearing rotation, the adjusting screw B401 is made to rotate between the inner side of the threaded groove B4 and the inner side of the sliding frame B4, and the inner side of the elastic support is driven by the elastic support 301 to change the radian of the waist support 3, compared with the waist support 301, and the radian of the waist support is well deformed, and the waist support 3 is adjusted, and the waist support is adjusted by the radian of the waist support 3.

Working principle: firstly, when a worker needs to use the office chair 1, the worker sits on the surface of the office chair 1 and makes the waist lean against the surface of the polyester mesh cloth 302 of the waist support 3, pushes the limiting block 108 to slide out of the limiting groove A105, drives the damping telescopic rod A107 and the outer spring to shrink, pushes the waist support 3 to drive the sliding frame B104 to slide on the inner side of the sliding frame A103, makes the waist support 3 to a proper position, releases the limiting block 108, makes the damping telescopic rod A107 and the outer spring pop-up the limiting block 108 to slide on the inner side of one of the opposite limiting grooves A105, rotates the adjusting screw A2 reversely or positively through a bearing under the sliding frame A103 through the bearing, makes the adjusting screw A2 to rotate in a threaded engagement on the inner side of the threaded groove A109, pushes the sliding frame A103 to slide downwards or upwards to a proper position between the sliding groove B1021 and the inner side of the sliding groove A101, the waist support 3 is driven to be adjusted to a proper position, then, after the waist support 3 is freely adjusted to a proper position, a worker pushes the four limiting frames 307 to slide out of the limiting grooves B305, and drives the damping telescopic rods B308 and the outer springs to shrink, when the waist of the worker leans against the surface of the side polyester screen cloth 302 of the waist support 3, the rubber support 301 is pushed to deform, the sliding frame C304 is pushed to slide on the inner side of the adjusting groove 303, the deformed rubber support 301 changes the polyester screen cloth 302 to a proper radian, finally, the worker releases the limiting frames 307, the damping telescopic rods B308 and the outer springs pop out of the limiting frames 307 to slide into the inner sides of the opposite limiting grooves B305, the sliding frame C304 is fixed, the waist leaning radian of the waist support 3 is completed, and the waist support 3 is conveniently and freely adjusted to a proper waist leaning radian by the worker, so that the waist leans against the surface of the polyester screen cloth 302 is more comfortable.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.

Claims (6)

1. The utility model provides an office chair waist holds in palm adjustment structure, includes office chair (1), spout A (101), mount (102), spout B (1021), carriage A (103), waist holds in the palm (3), rubber strut (301) and dacron screen cloth (302), office chair (1) side embedding is provided with spout A (101), office chair (1) side is close to spout A (101) below fixed mounting and has mount (102), mount (102) side embedding is provided with spout B (1021), be provided with carriage A (103) through the slider slip between spout B (1021) and the spout A (101) inboard, carriage A (103) side is provided with waist and holds in the palm (3), and waist holds in the palm (3) and be the slope form setting, relative fixed mounting has rubber strut (301) around waist holds in the palm (3) side, and rubber strut (301) are the arc form setting, fixed mounting has dacron (302) between rubber strut (301), its characterized in that: the sliding support is characterized in that a sliding adjusting mechanism which is convenient for a user to adjust the position of the waist support is arranged on the outer side of the sliding frame A (103), and a waist support radian adjusting mechanism which is convenient for the user to adjust the radian of the waist support is arranged on the outer side of the waist support (3).

2. The office chair lumbar support adjustment structure of claim 1, wherein: the sliding adjusting mechanism consists of a sliding frame B (104), a limiting groove A (105), a sliding groove C (106), a damping telescopic rod A (107), a limiting block (108), a thread groove A (109) and an adjusting screw A (2);

the utility model discloses a damping telescopic rod, including slide frame A (103), waist holds in the palm (3) side fixed mounting and is provided with slide frame B (104) side, slide frame B (104) top embedding is provided with spacing groove A (105), slide frame A (103) inner wall top embedding is provided with spout C (106), the inboard slip of spout C (106) is provided with stopper (108), and stopper (108) agree with the slip to set up in spacing groove A (105) inboard, fixed mounting has damping telescopic rod A (107) between stopper (108) top and spout C (106) inner wall top, and damping telescopic rod A (107) outside is provided with the spring in a supporting way, mount (102) side is close to slide frame A (103) below embedding is provided with screw groove A (109), screw groove A (109) inboard screw engagement rotates and is provided with adjusting screw A (2), and adjusting screw A (2) tip top sets up in slide frame A (103) below inboard through the bearing rotation.

3. The office chair lumbar support adjustment structure of claim 1, wherein: the waist support radian adjusting mechanism consists of an adjusting groove (303), a sliding frame C (304), a limiting groove B (305), a sliding groove D (306), a limiting frame (307) and a damping telescopic rod B (308);

rubber strut (301) side fixed mounting has carriage C (304), relative embedding is provided with adjustment tank (303) around waist holds in the palm (3) side, and carriage C (304) fit slip setting is inboard at adjustment tank (303), carriage C (304) upper and lower side all imbeds and is provided with spacing groove B (305), waist holds in the palm (3) inner wall side and is close to adjustment tank (303) department and all imbeds and be provided with spout D (306), the inboard slip of spout D (306) is provided with spacing (307), and spacing (307) fit slip setting is inboard at spacing groove B (305), fixed mounting has damping telescopic link B (308) between spacing (307) top and spout D (306) inner wall top, and damping telescopic link B (308) outside is provided with the spring in a matched manner.

4. The office chair lumbar support adjustment structure of claim 2, wherein: the limiting grooves A (105) are arranged in parallel at equal intervals.

5. An office chair lumbar support adjustment structure as claimed in claim 3, wherein: the sliding frames C (304) are arranged in a U shape, four adjusting grooves (303) are formed, and every two adjusting grooves are arranged in parallel.

6. An office chair lumbar support adjustment structure as claimed in claim 3, wherein: the limiting grooves B (305) are arranged in parallel at equal intervals.