CN217065800U

CN217065800U - Chair with detachable top

Info

Publication number: CN217065800U
Application number: CN202220958782.XU
Authority: CN
Inventors: 周伟瑜
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-04-24
Filing date: 2022-04-24
Publication date: 2022-07-29
Anticipated expiration: 2032-04-24

Abstract

The utility model discloses a chair, including the chair main part, be connected with the back frame of the relative chair main part activity of ability in the chair main part, be equipped with down the connecting rod between back frame and the chair main part, lower connecting rod lower extreme rotates with back frame lower part to be connected, lower connecting rod upper end rotates with the chair main part to be connected, be equipped with the connecting rod above the connecting rod down between back frame and the chair main part and lie in, it supports to lean on with back frame upper portion to lean on to be connected to go up the connecting rod upper end, go up the connecting rod lower extreme and rotate with the chair main part to be connected, when the user's back leans on the back frame and when tilting backward, back frame upper portion tilts backward, and back frame lower part is forward to be removed, consequently the utility model has the characteristics of low in manufacturing cost, structural design is reasonable, and the comfort level is high, accords with ergonomic principle design.

Description

Chair with detachable top

[ technical field ] A method for producing a semiconductor device

The utility model relates to a chair.

[ background of the invention ]

In order to provide good riding comfort for users, the backrest of the existing chair for household or outdoor use is generally adjustable in angle, and when the chair is used, the user can rotate the backrest relative to the chair according to the use requirement so as to adjust the inclination angle of the backrest and the chair; however, when the chair is used by a user, the backrest can only support the upper part of the back of the user, but cannot support the waist part of the lower part of the back of the user, if the waist part needs to be supported, the backrest can be realized by adding cushion articles, and the user can feel uncomfortable to sit and fatigue easily occurs during the long-time sitting process; meanwhile, the air pump structure is adopted to adjust the angle of the backrest in the current market, and the chair with the structure often has the problem of high manufacturing cost.

Therefore, the present invention has been made in view of the above problems.

[ Utility model ] content

The utility model aims at overcoming the not enough of prior art, providing a chair, can improve the problem that prior art exists, have low in manufacturing cost, structural design is reasonable, and the comfort level is high, accords with the characteristics of ergonomic principle design.

The utility model discloses a realize through following technical scheme:

the utility model provides a chair, includes chair main part 1, be connected with the back frame 2 of the relative chair main part 1 activity of ability on the chair main part 1, be equipped with down connecting rod 3 between back frame 2 and the chair main part 1, lower connecting rod 3 lower extreme and back frame 2 lower parts rotate to be connected, 3 upper ends of lower connecting rod rotate with chair main part 1 to be connected, be equipped with connecting rod 4 between back frame 2 and the chair main part 1 and be located connecting rod 3 top down, it supports with back frame 2 upper portion and supports to lean on to be connected to go up connecting rod 4 upper end, it rotates with chair main part 1 to go up connecting rod 4 lower extreme and is connected, leans on back frame 2 and when tilting backward when user's back, back frame 2 upper portions tilt backward, and back frame 2 lower parts are moved forward.

The chair is characterized in that the upper end of the upper connecting rod 4 is provided with a pulley 41 which is connected with the backrest frame 2 in an abutting mode.

The chair is characterized in that the chair main body 1 is provided with an accommodating groove 10; a first spring 42 which can be compressed by the back frame 2 when the back frame 2 tilts backwards and can reset the back frame 2 when the back frame 2 loses the external force is arranged between the accommodating groove 10 and the upper connecting rod 4.

The chair is characterized in that the chair body 1 is provided with a sliding groove 11, the sliding groove 11 is connected with a sliding block 12 in a sliding mode, the sliding block 12 is rotatably connected with the upper end of the lower connecting rod 3, and a second spring 13 which can be compressed by the sliding block 12 when the lower portion of the backrest frame 2 moves forwards and can enable the backrest frame 2 to reset when the backrest frame 2 loses external force is arranged between the sliding block 12 and the side wall of the sliding groove 11.

The chair is characterized in that a guide structure 5 is arranged between the backrest frame 2 and the chair main body 1.

The chair is characterized in that the guide structure 5 comprises a guide rail 51 arranged on the chair body 1, and the lower end of the backrest frame 2 is provided with a guide pulley 52 slidably connected with the guide rail 51.

The chair is characterized in that the chair main body 1 is provided with the limiting hole groove 6 which can ensure the guide pulley 52 to move in the set moving range.

The chair is characterized in that the chair main body 1 is movably connected with a movable seat plate 7 which can move relative to the chair main body 1 and is positioned at the lower side of the backrest frame 2, and a connecting structure 8 which enables the movable seat plate 7 to move relative to the chair main body 1 is arranged between the movable seat plate 7 and the chair main body 1.

The chair is characterized in that the connecting structure 8 comprises a guide chute 81 arranged on the chair body 1, the movable seat plate 7 is provided with a guide rod 82 which can move in the guide chute 81 and can enable the movable seat plate 7 to move downwards and forwards when a user sits on the movable seat plate 7, and a third spring 9 which can drive the movable seat plate 7 to reset when the movable seat plate 7 loses external force is arranged between the movable seat plate 7 and the chair body 1.

Compared with the prior art, the utility model has the advantages of as follows:

1. the utility model comprises a chair main body, a backrest frame which can move relative to the chair main body is connected on the chair main body, a lower connecting rod is arranged between the backrest frame and the chair main body, the lower end of the lower connecting rod is rotationally connected with the lower part of the backrest frame, the upper end of the lower connecting rod is rotationally connected with the chair main body, an upper connecting rod is arranged between the backrest frame and the chair main body and above the lower connecting rod, the upper end of the upper connecting rod is connected with the upper part of the backrest frame in an abutting mode, the lower end of the upper connecting rod is rotationally connected with the chair main body, when the back of a user leans against the backrest frame and tilts backwards, the upper part of the backrest frame tilts backwards, and the lower part of the backrest frame moves forwards, when in use, the user sits on the chair main body, then the back of the user tilts backwards and leans against the backrest frame, in the process, the upper part of the backrest frame can tilt backwards, make back frame lower part forward simultaneously and remove, make back frame contact, support with user's back that can be better, give user's good comfort level, solve present back frame and can not fully contact with user's back and cause the problem that the comfort level is poor, have low in manufacturing cost, structural design is reasonable, and the comfort level is high, accords with the characteristics of ergonomic principle design.

2. For convenient use, the upper end of the upper connecting rod is provided with a pulley which is connected with the backrest frame in an abutting mode.

3. The backrest frame is characterized in that a guide structure is arranged between the backrest frame and the chair main body, so that the backrest frame can stably move relative to the chair main body, the backrest frame is prevented from being misplaced and deviated relative to the chair main body, and the backrest frame is safe and reliable.

4. Be equipped with in the chair main part and ensure the spacing hole groove of leading pulley in setting for the home range internalization, can ensure that the back frame removes in the safety range, improves the utility model discloses a security.

5. The chair is characterized in that a movable seat board capable of moving relative to the chair main body is movably connected to the lower side of the backrest frame on the chair main body, a connecting structure enabling the movable seat board to move relative to the chair main body is arranged between the movable seat board and the chair main body, a user sits on the movable seat board and leans against the backrest frame, and the movable seat board can move forwards relative to the chair main body under the action of external force, so that the gravity center of the user moves forwards, and the chair main body cannot be turned backwards when the user leans against the backrest frame.

[ description of the drawings ]

The following detailed description of embodiments of the present invention is provided with reference to the accompanying drawings, in which:

fig. 1 is a perspective view of the present invention.

Fig. 2 is one of the schematic structural diagrams of the present invention.

Fig. 3 is a second schematic structural diagram of the present invention.

Fig. 4 is a schematic view of a partial structure of the present invention.

Fig. 5 is a second partial schematic view of the present invention.

Fig. 6 is an enlarged schematic view of a in fig. 5.

Fig. 7 is a third schematic view of a partial structure of the present invention.

[ detailed description ] embodiments

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

As shown in fig. 1-7, the utility model relates to a chair, including chair main part 1, be connected with the back frame 2 that can the activity of chair main part 1 relatively on the chair main part 1, be equipped with down connecting rod 3 between back frame 2 and the chair main part 1, lower connecting rod 3 lower extreme rotates with back frame 2 lower part to be connected, lower connecting rod 3 upper end rotates with chair main part 1 to be connected, connecting rod 4 is equipped with to connecting rod 3 top down between back frame 2 and the chair main part 1 and lie in, it leans on with back frame 2 upper portion to lean on with back frame 2 upper portion to be connected to go up connecting rod 4 lower extreme and chair main part 1 and rotate to be connected, when the user's back leans on back frame 2 and tilt backward, back frame 2 upper portion tilt backward, and back frame 2 lower part is preceding to be moved. When using, the user takes in the chair main part, then the user back slope backward and lean on the back frame, at this in-process, can make back frame upper portion slope backward, make back frame lower part move forward simultaneously, even make back frame can be better with user back contact, support, give user's good comfort level, solve present back frame can not be sufficient with user back contact and cause the poor problem of comfort level, manufacturing cost is low, structural design is reasonable, the comfort level is high, accord with the characteristics of ergonomic principle design.

The upper end of the upper connecting rod 4 is provided with a pulley 41 which is connected with the backrest frame 2 in an abutting mode, so that the friction force between the upper connecting rod 4 and the backrest frame 2 can be reduced, the phenomenon of locking of the upper connecting rod and the backrest frame is prevented, and the backrest frame can move smoothly relative to the chair main body.

The chair main body 1 is provided with an accommodating groove 10; a first spring 42 which can be compressed by the back frame 2 when the back frame 2 tilts backwards and can reset the back frame 2 when the back frame 2 loses the external force is arranged between the accommodating groove 10 and the upper connecting rod 4. When the user leans on the backrest frame to make the upper part of the backrest frame tilt backwards, the backrest frame drives the upper connecting rod 4 to turn backwards to compress the first spring 42, so that the first spring 42 has an elastic resetting force, when the user is separated from the backrest frame, namely the backrest frame loses the external force effect, at the moment, the first spring 42 elastically restores to drive the upper connecting rod 4 to turn forwards, and further the backrest frame is reset.

Be equipped with sliding tray 11 on the chair main part 1, sliding tray 11 sliding connection has slider 12, slider 12 rotates with lower connecting rod 3 upper end to be connected, be equipped with between slider 12 and the sliding tray 11 lateral wall and can compress by slider 12 when back frame 2 lower part moves forward and can make the second spring 13 that back frame 2 resets when back frame 2 loses the exogenic action, can make better the resetting of back frame, can prevent back frame lower part to remove too fast simultaneously, ensure user safety in utilization.

A guide structure 5 is arranged between the backrest frame 2 and the chair main body 1, so that the backrest frame can stably move relative to the chair main body, the backrest frame is prevented from being misplaced and deviated relative to the chair main body, and the backrest frame has the characteristics of safety and reliability.

According to the design requirement, the guiding structure 5 comprises a guiding slide rail 51 arranged on the chair main body 1, and a guiding pulley 52 connected with the guiding slide rail 51 in a sliding manner is arranged at the lower end of the backrest frame 2.

Be equipped with on the chair main part 1 and ensure that leading pulley 52 is at the spacing hole groove 6 of setting for the activity within range activity, can ensure that the backrest frame removes in the safety range, improves the utility model discloses a security.

The chair is characterized in that a movable seat plate 7 which can move relative to the chair main body 1 is movably connected to the lower side of the backrest frame 2 on the chair main body 1, and a connecting structure 8 which enables the movable seat plate 7 to move relative to the chair main body 1 is arranged between the movable seat plate 7 and the chair main body 1. When a user sits on the movable seat board and leans against the backrest frame, the movable seat board can move forwards relative to the chair main body under the action of external force, namely, the gravity center of the user moves forwards, and the chair main body can not turn backwards when the user leans against the backrest frame.

According to the design requirement, connection structure 8 is including being equipped with the direction chute 81 on the chair main part 1, be equipped with on the activity bedplate 7 can be in direction chute 81 internalization and when the user take enable the guide bar 82 of activity bedplate 7 downstream downwards when activity bedplate 7, be equipped with between activity bedplate 7 and the chair main part 1 and lose the exogenic action and can order about the third spring 9 that activity bedplate 7 reset at activity bedplate 7.

The working principle is as follows:

when a user sits on the movable seat plate 7, the movable seat plate 7 is acted by external force at the moment to enable the guide rod 82 to move forwards downwards along the guide inclined groove 81, namely the movable seat plate 7 moves forwards relative to the chair main body 1, and meanwhile, the movable seat plate 7 compresses the third spring 9 to enable the third spring 9 to have an elastic resetting force;

when a user leans against the backrest frame 2 and tilts backwards, the upper part of the backrest frame 2 tilts backwards at the moment, so that the upper connecting rod 4 turns backwards to compress the first spring 42, the first spring 42 has an elastic resetting force, meanwhile, the lower part of the backrest frame 2 moves forwards, the lower connecting rod 3 drives the sliding block 12 to slide downwards in the sliding groove 11 to compress the second spring 13, and therefore the backrest frame 2 can be fully abutted against the back of the user, namely the user is better supported, namely the backrest frame can automatically adjust the inclination matched with the backrest frame according to the sitting posture of the user;

when the back of the user is separated from the backrest frame, at the moment, under the action of external force lost by the backrest frame 2, the second spring 13 is elastically reset to drive the sliding block 12 to slide upwards in the sliding groove 11, the sliding block 12 drives the lower part of the backrest frame 2 to move backwards through the lower connecting rod 3 to reset, and meanwhile, the first spring 42 drives the upper connecting rod 4 to turn forwards to reset the upper part of the backrest frame 2;

when waiting the user and moving seat board 7 separation, third spring 9 orders about moving seat board 7 and resets, consequently the utility model has the characteristics of structural design is reasonable, and the comfort level is high, accords with ergonomic principle design.

Claims

1. The utility model provides a chair, its characterized in that includes chair main part (1), be connected with back frame (2) that chair main part (1) activity relatively on chair main part (1), be equipped with down connecting rod (3) between back frame (2) and chair main part (1), connecting rod (3) lower extreme and back frame (2) lower part rotate to be connected down, connecting rod (3) upper end rotates with chair main part (1) to be connected down, be equipped with connecting rod (4) between back frame (2) and chair main part (1) and be located connecting rod (3) top down, go up connecting rod (4) upper end and back frame (2) upper portion and lean on to be connected, go up connecting rod (4) lower extreme and chair main part (1) and rotate to be connected, when the user's back leans on back frame (2) and backward slope, back frame (2) upper portion backward slope, and the lower part of the backrest frame (2) moves forwards.

2. A chair according to claim 1, characterized in that the upper end of the upper connecting rod (4) is provided with a pulley (41) which is connected against the backrest frame (2).

3. A chair according to claim 1, characterized in that the chair body (1) is provided with a receiving groove (10); a first spring (42) which can be compressed by the backrest frame (2) when the backrest frame (2) tilts backwards and can enable the backrest frame (2) to reset when the backrest frame (2) loses external force is arranged between the accommodating groove (10) and the upper connecting rod (4).

4. The chair according to claim 1, characterized in that the chair body (1) is provided with a sliding groove (11), the sliding groove (11) is internally connected with a sliding block (12) in a sliding way, the sliding block (12) is rotatably connected with the upper end of the lower connecting rod (3), and a second spring (13) which can be compressed by the sliding block (12) when the lower part of the backrest frame (2) moves forwards and can reset the backrest frame (2) when the backrest frame (2) loses external force is arranged between the sliding block (12) and the side wall of the sliding groove (11).

5. A chair according to any of claims 1-4, characterized in that a guide structure (5) is provided between the backrest frame (2) and the chair body (1).

6. A chair according to claim 5, characterized in that the guiding structure (5) comprises a guiding rail (51) arranged on the chair body (1), and the lower end of the backrest frame (2) is provided with a guiding pulley (52) slidably connected with the guiding rail (51).

7. A chair according to claim 6, characterized in that the chair body (1) is provided with a limiting hole groove (6) capable of ensuring the guide pulley (52) to move within a set range of motion.

8. A chair according to any one of claims 1-4, characterized in that a movable seat plate (7) which can move relative to the chair body (1) is movably connected to the chair body (1) at the lower side of the backrest frame (2), and a connecting structure (8) which can move the movable seat plate (7) relative to the chair body (1) is arranged between the movable seat plate (7) and the chair body (1).

9. A chair as claimed in claim 8, characterized in that the connecting structure (8) comprises a guiding chute (81) provided on the chair body (1), the movable seat plate (7) is provided with a guiding rod (82) which can move in the guiding chute (81) and can move the movable seat plate (7) downwards and forwards when a user sits on the movable seat plate (7), and a third spring (9) which can drive the movable seat plate (7) to reset when the movable seat plate (7) loses external force is provided between the movable seat plate (7) and the chair body (1).