CN210276526U - Buffer device for legs of office chair - Google Patents

Abstract

The utility model discloses a buffer device for office chair legs, which comprises a left U-shaped leg and a right U-shaped leg, wherein the left U-shaped leg is arranged on the parallel left side of the right U-shaped leg, the outer walls of the front and the rear ends of the bottom parts of the left U-shaped leg and the right U-shaped leg are respectively provided with an anti-slip sleeve, a novel interval adjusting device is added on the upper end of the buffer device for office chair legs, and the buffer range of the two buffer device main bodies can be limited by the novel interval adjusting device, so that the buffer intervals of the two buffer device main bodies can be limited by the corresponding adjusting interval adjusting device when the buffer device main bodies are pressed by different weights, the two buffer device main bodies can only buffer up and down in the interval limited by the interval adjusting device, thereby avoiding the occurrence of deformation damage caused by the over-high pressure of the two buffer device main bodies, increasing the overall service life and safety of use of both patient device bodies.

Description

Buffer device for legs of office chair

Technical Field

The utility model belongs to the technical field of the seat is relevant, concretely relates to buffer that office chair leg was used.

Background

The office chair refers to various chairs which are convenient to work in daily work and social activities, office partners divide the office chair into a narrow meaning and a broad meaning, the narrow office chair refers to a backrest chair on which a person sits when working on a desktop in a sitting posture, the broad office chair refers to all chairs used in offices, including executive chairs, middle class chairs, guest chairs, employee chairs, conference chairs, visitor chairs, training chairs and the like, and the buffer, Chinese words and phrases and the buffered literal meaning are buffering impact force, the explanation in a modern Chinese dictionary is that conflict is relieved, the buffer has abstract meaning besides real impact force, the buffer can be called to buffer when a certain object is slowed down or weakened in a changing process, for example, substances with less chemical reaction are called as buffer agents, the buffering degree is different, and the buffering degree can be expressed by the percentage of the buffer rate of the buffer.

The prior buffer device technology for the legs of the office chair has the following problems: buffer that current office chair leg was used is a definite value in whole buffer's buffering interval when carrying out cushioning effect for buffer can only move about in the interval of a definite value when the office chair pressurized cushions, and then can make buffer push down and contract to shortest length when whole office chair pressurized reaches the limit like this, then can cause the angle of inside pressurized bending behind the U type leg opening of office chair too big like this easily, thereby cause the U type leg deformation damage of office chair easily.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a buffer that office chair leg was used to solve and then can make buffer push down when whole office chair pressurized reaches the limit and contract to minimum length proposed in the above-mentioned background art, then can cause the angle of inside pressurized bending behind office chair's the U type leg opening too big so easily, thereby cause office chair's U type leg to warp the problem of damaging easily.

In order to achieve the above object, the utility model provides a following technical scheme: a buffer device for office chair legs comprises a left U-shaped leg and a right U-shaped leg, wherein the left U-shaped leg is arranged on the parallel left side of the right U-shaped leg, anti-slip sleeves are respectively arranged on the outer walls of the front and rear ends of the bottom of the left U-shaped leg and the right U-shaped leg, the opposite inner walls of the rear sides of the left U-shaped leg and the right U-shaped leg are connected with a connecting cross rod, mounting plates are respectively arranged on the opposite inner walls of the middle sections of the upper ends of the left U-shaped leg and the right U-shaped leg, the two mounting plates are respectively fixedly connected with the left U-shaped leg and the right U-shaped leg through welding, anti-slip pads are respectively arranged on the outer walls of the upper ends of the two mounting plates, the two mounting plates and the two anti-slip pads are fixedly connected through adhesives, mounting holes are respectively arranged in the vertical inner parts of the two mounting plates, and vertical buffer device main bodies and, the buffer device main body is connected with the bottom of the interval adjusting device, a buffer column is arranged on the buffer device main body, a lifting rod is arranged vertically inside the bottom of the buffer column, a connecting sheet is arranged at the bottom of the lifting rod, the lifting rod is connected on the upper side outer wall of the lower end of the opening of the rear side of the left U-shaped leg and the right U-shaped leg through a connecting sheet at the bottom, the interval adjusting device is provided with an interval column, the upper end of the interval column is provided with another connecting sheet, the interval column is connected on the lower side outer wall of the upper end of the opening position at the rear end of the left U-shaped leg and the right U-shaped leg through a connecting sheet at the upper end, an interval adjusting screw hole with a downward opening is arranged inside the circumference of the lower half section of the interval column, an interval adjusting screw rod is arranged inside the circumference of the interval adjusting screw hole, the lowest end of the interval adjusting screw rod penetrates through a lower end opening of the interval adjusting screw hole and is connected to the outer wall of the upper end of the buffer column through welding.

Preferably, the inside buffering hole that is provided with the opening decurrent of buffering post lower extreme circumference in the buffer device main part, the topmost of lifter sets up inside the circumference of buffering hole, the upper end of lifter is connected with buffer spring.

Preferably, the connecting cross rods are provided with two connecting cross rods, the connecting cross rods are identical in shape and size and structure composition, and the connecting cross rods are connected to the inner walls, opposite to the upper end and the lower end of the rear side, of the left U-shaped leg and the right U-shaped leg respectively through welding.

Preferably, the antiskid cover is provided with four altogether, four the antiskid cover all connects both ends bottom around left U type leg and the right U type leg respectively through the buckle.

Preferably, the left U-shaped leg and the right U-shaped leg are identical in shape, size and structural composition, and the left U-shaped leg and the right U-shaped leg are kept in a parallel state relatively.

Preferably, the number of the buffer device bodies is two, and the shape, the size and the elastic coefficient of the buffer springs in the two buffer device bodies are the same.

Compared with the prior art, the utility model provides a buffer that office chair leg was used possesses following beneficial effect:

1. the utility model adds a novel interval adjusting device on the upper end of the buffer device for the legs of the office chair, and the buffer device main bodies are respectively vertically arranged inside the openings of the last sides of the two U-shaped legs, the novel interval adjusting device is respectively connected with the upper ends of the two buffer device main bodies, and the upper ends of the interval adjusting device are respectively fixedly connected with the two U-shaped legs, and the buffer ranges of the two buffer device main bodies can be limited by the novel interval adjusting device, thus the buffer ranges of the two buffer device main bodies can be limited by the corresponding adjusting interval adjusting device when the buffer device main bodies are pressed by different weights, the two buffer device main bodies can only buffer up and down in the interval limited by the interval adjusting device, thereby the situation that the two buffer device main bodies are deformed and damaged due to overlarge pressure can be avoided, increase the overall life and safety of use of the two patient device bodies;

2. the specific use mode and principle of the novel interval adjusting device are as follows, when the weight that two U-shaped legs need to bear is larger, the interval adjusting device connected with the upper ends of the two buffering device main bodies needs to be adjusted at the moment, so that the buffering range of the two buffering device main bodies is reduced, the two buffering device main bodies are prevented from being damaged due to the fact that the descending angle is enlarged due to the fact that the two buffering device main bodies are pressed too heavy, at the moment, a user only needs to hold the buffering column on the buffering device main bodies by hands and rotate clockwise, at the moment, the buffer column rotating clockwise drives the interval adjusting screw rod at the upper end to rotate, and because the interval adjusting screw rod is sleeved in the interval adjusting screw hole in the interval column, at the moment, the interval adjusting screw rod rotating clockwise can move downwards in the interval adjusting screw hole through the screw action, and the whole length of the connected buffering device main bodies and the interval adjusting device can be increased, thereby reach and restrict the buffer interval of buffer main part through adjusting interval adjusting device to make whole U type landing leg and buffer main part can adapt to the crowd of various different weights and use.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description, do not constitute a limitation of the invention, in which:

FIG. 1 is a schematic view of an external three-dimensional structure of a cushioning device for legs of an office chair according to the present invention;

FIG. 2 is a schematic side plan view of a buffering mechanism for legs of an office chair according to the present invention;

fig. 3 is a schematic view of the internal plane structure of the interval adjusting device according to the present invention;

in the figure: 1. an anti-slip sleeve; 2. connecting the cross bars; 3. a left U-shaped leg; 4. a right U-shaped leg; 5. mounting a plate; 6. a non-slip mat; 7. mounting holes; 8. a buffer device main body; 9. an interval adjusting device; 10. connecting sheets; 11. a spacer column; 12. an interval adjusting screw; 13. a buffer column; 14. a lifting rod; 15. a buffer hole; 16. interval adjusting screw holes; 17. a buffer spring.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: a buffer device for office chair legs comprises a left U-shaped leg 3 and a right U-shaped leg 4, wherein the left U-shaped leg 3 is arranged on the parallel left side of the right U-shaped leg 4, the shape, size and structure of the left U-shaped leg 3 and the right U-shaped leg 4 are the same, the left U-shaped leg 3 and the right U-shaped leg 4 are kept in a relatively parallel state, the left U-shaped leg 3 and the right U-shaped leg 4 are both in a U-shaped shape with backward openings, therefore, when the chair is pressed, the openings of the left U-shaped leg 3 and the right U-shaped leg 4 are inwards compressed, so that the left U-shaped leg 3 and the right U-shaped leg 4 and two buffer device main bodies 8 can mutually cooperate to play a double buffer role on the whole office chair, the anti-skid sleeves 1 are arranged on the outer walls at the front end and the rear end of the bottom of the left U-shaped leg 3 and the right U-shaped leg 4, the anti-skid sleeves 1 are arranged in total, and the four anti-skid sleeves 1 are respectively connected to the front and, the antiskid sleeve 1 can not only ensure that the left U-shaped leg 3 and the right U-shaped leg 4 can be more firmly placed on the ground, but also play an antiskid role, and simultaneously can also prevent the bottoms of the left U-shaped leg 3 and the right U-shaped leg 4 from directly contacting with the ground to scrape decorative objects on the ground, the opposite inner walls of the left U-shaped leg 3 and the right U-shaped leg 4 close to the rear side are connected with two connecting cross rods 2, the two connecting cross rods 2 are totally arranged, the shape, the size and the structural composition of the two connecting cross rods 2 are the same, the two connecting cross rods 2 are respectively connected on the opposite inner walls of the upper end and the lower end of the left U-shaped leg 3 and the right U-shaped leg 4 close to the rear side through welding, the two connecting cross rods 2 can play a role in connecting and reinforcing roles on the upper end and the lower end of the left U-shaped leg 3 and the right U-shaped leg 4, thereby increasing the rigidity of the whole office chair, two mounting panels 5 all through the welding respectively with left U type leg 3 and 4 fixed connection of right U type leg, all be provided with slipmat 6 on the upper end outer wall of two mounting panels 5, two mounting panels 5 and two slipmat 6 all pass through adhesive fixed connection, the vertical inside of two mounting panels 5 all is provided with mounting hole 7, left side U type leg 3 and the 4 last side opening part of right U type leg all are connected with vertical buffer main part 8 and interval adjusting device 9, buffer main part 8 is connected in the bottom of interval adjusting device 9, be provided with buffering post 13 on the buffer main part 8, the vertical inside in buffering post 13 bottom is provided with lifter 14, lifter 14 bottom is provided with connection piece 10, lifter 14 passes through the connection piece 10 of bottom and connects on left side U type leg 3 and the 4 last side opening department lower extreme upside outer wall of right U type leg.

A buffer device for office chair legs, an interval adjusting device 9 is provided with an interval column 11, the upper end of the interval column 11 is provided with another connecting sheet 10, the interval column 11 is connected on the lower outer wall of the upper end of the last opening position of a left U-shaped leg 3 and a right U-shaped leg 4 through the connecting sheet 10 at the upper end, an interval adjusting screw hole 16 with a downward opening is arranged inside the lower half section of the circumference of the interval column 11, an interval adjusting screw rod 12 is arranged inside the circumference of the interval adjusting screw hole 16, the lowest end of the interval adjusting screw rod 12 passes through the lower end opening of the interval adjusting screw hole 16 and is connected on the upper outer wall of a buffer column 13 through welding, a buffer hole 15 with a downward opening is arranged inside the circumference of the lower end of the buffer column 13 on a buffer device main body 8, the buffer device main body 8 is provided with two buffer devices, and the shape, size and elasticity coefficient, thus, the buffering effect of the two buffering device main bodies 8 can be kept consistent when the left U-shaped leg 3 and the right U-shaped leg 4 are pressed, so that the balance and stability of the whole office chair are improved when the office chair is used, the uppermost end of the lifting rod 14 is arranged inside the circumference of the buffering hole 15, the upper end of the lifting rod 14 is connected with the buffering spring 17, when the weight of the two U-shaped legs is heavy, the interval adjusting device 9 connected with the upper ends of the two buffering device main bodies 8 is required to be adjusted at the moment, so that the buffering range of the two buffering device main bodies 8 is reduced, the two buffering device main bodies 8 are prevented from being pressed too heavy and the descending angle is increased to damage the two U-shaped legs, at the moment, a user only needs to hold the buffering column 13 on the buffering device main body 8 by hand and rotate clockwise, and the clockwise rotating buffering column 13 drives the interval adjusting screw 12 at the upper end to rotate, and because the interval adjusting screw 12 is sleeved in the interval adjusting screw hole 16 inside the interval column 11, the interval adjusting screw 12 which rotates clockwise at the moment moves downwards inside the interval adjusting screw hole 16 through the screw thread action, so that the overall length of the connected buffer device main body 8 and the interval adjusting device 9 is increased, and the buffer interval of the buffer device main body 8 is limited by adjusting the interval adjusting device 9.

The utility model discloses a theory of operation and use flow: after the utility model is installed, when the utility model is assembled, firstly, a left U-shaped leg 3 is placed on the parallel left side of a right U-shaped leg 4 in parallel, then the left U-shaped leg 3 and the right U-shaped leg 4 in parallel state are kept and are fixedly connected through two connecting cross rods 2, then a buffer device main body 8 is vertically installed and fixed on the upper outer wall at the bottom of the opening of the left U-shaped leg 3 and the right U-shaped leg 4, then a section adjusting device 9 is installed at the upper ends of the two buffer device main bodies 8, the upper ends of the two section adjusting devices 9 are respectively connected on the lower outer walls at the upper ends of the openings of the left U-shaped leg 3 and the right U-shaped leg 4, then a seat of an office chair is placed at the upper ends of the connected left U-shaped leg 3 and the right U-shaped leg 4, and the seat is fixedly connected with two mounting plates 5 on the left U-shaped leg 3 and the right U-shaped leg 4 through fixing bolts, then the assembled office chair can be put into use, a novel interval adjusting device 9 is added at the upper end of the buffering device for the legs of the office chair, the buffering device main bodies 8 are respectively and vertically arranged in the openings of the rear ends of the two U-shaped legs, the novel interval adjusting device 9 is respectively connected at the upper ends of the two buffering device main bodies 8, the upper ends of the interval adjusting devices 9 are respectively and fixedly connected with the two U-shaped legs, and the buffering ranges of the two buffering device main bodies 8 can be limited through the novel interval adjusting device 9, so that the buffering intervals of the two buffering device main bodies 8 can be limited through the corresponding adjusting interval adjusting devices 9 when the buffering device main bodies 8 are pressed by different weights, and the two buffering device main bodies 8 can only perform up-and-down movable buffering in the interval limited by the interval adjusting devices 9, therefore, the situation that the two buffer device main bodies 8 are deformed and damaged due to overlarge pressure can be avoided.

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.

Claims (6)

1. The utility model provides a buffer that office chair leg was used, includes left U type leg (3) and right U type leg (4), its characterized in that: the left U-shaped leg (3) is arranged on the parallel left side of the right U-shaped leg (4), the outer walls of the front end and the rear end of the bottoms of the left U-shaped leg (3) and the right U-shaped leg (4) are respectively provided with an anti-skidding sleeve (1), the opposite inner walls of the rear sides of the left U-shaped leg (3) and the right U-shaped leg (4) are connected with a connecting cross rod (2), the opposite inner walls of the middle sections of the upper ends of the left U-shaped leg (3) and the right U-shaped leg (4) are respectively provided with a mounting plate (5), the two mounting plates (5) are respectively fixedly connected with the left U-shaped leg (3) and the right U-shaped leg (4) through welding, the outer walls of the upper ends of the two mounting plates (5) are respectively provided with an anti-skidding pad (6), the two mounting plates (5) and the two anti-skidding pads (6) are respectively fixedly connected through an adhesive, left side U type leg (3) and right U type leg (4) rear side opening part all are connected with vertical buffer device main part (8) and interval adjusting device (9), buffer device main part (8) are connected in the bottom of interval adjusting device (9), be provided with buffering post (13) on buffer device main part (8), the vertical inside in buffering post (13) bottom is provided with lifter (14), lifter (14) bottom is provided with connection piece (10), lifter (14) are connected on left side U type leg (3) and right U type leg (4) rear side opening department upside outer wall through connection piece (10) of bottom, be provided with interval post (11) on interval adjusting device (9), the upper end of interval post (11) is provided with other connection piece (10), interval post (11) are connected in left side U type leg (3) and right U type leg (4) rear side opening department lower extreme outside outer wall through connection piece (10) upper end On the wall, interval post (11) lower half section circumference inside is provided with interval adjusting screw (16) that the opening is down, and the circumference of interval adjusting screw (16) inside is provided with interval adjusting screw (12), the lower extreme of interval adjusting screw (12) passes the lower extreme opening of interval adjusting screw (16) and through welded connection on the upper end outer wall of bumping post (13).

2. A cushioning apparatus for legs of an office chair according to claim 1, wherein: buffer column (13) lower extreme circumference inside on buffer device main part (8) is provided with buffering hole (15) that the opening is decurrent, the topmost of lifter (14) sets up inside the circumference of buffering hole (15), the upper end of lifter (14) is connected with buffer spring (17).

3. A cushioning apparatus for legs of an office chair according to claim 1, wherein: connect horizontal pole (2) and be provided with two altogether connect horizontal pole (2) shape size and structure to constitute the homogeneous phase, two connect horizontal pole (2) all through the welding respectively connect on left U type leg (3) and right U type leg (4) lean on both ends subtend inner wall about the rear side.

4. A cushioning apparatus for legs of an office chair according to claim 1, wherein: the anti-skidding sleeve (1) is provided with four, four the anti-skidding sleeve (1) is connected respectively at the bottom of the front and back ends of the left U-shaped leg (3) and the right U-shaped leg (4) through buckles.

5. A cushioning apparatus for legs of an office chair according to claim 1, wherein: the left U-shaped leg (3) and the right U-shaped leg (4) are identical in shape, size and structure, and the left U-shaped leg (3) and the right U-shaped leg (4) are kept in a parallel state.

6. A cushioning apparatus for office chair legs as claimed in claim 2, wherein: the buffer device comprises two buffer device main bodies (8), and the shape, the size and the elastic coefficient of buffer springs (17) in the two buffer device main bodies (8) are the same.

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