Elastic structure for seat and spring chair

Abstract

The utility model relates to an elastic structure for a seat and a spring chair, the elastic structure comprises a connecting pipe and a telescopic pipe, one end of the connecting pipe is fixedly connected with the seat, the other end of the connecting pipe is slidably connected to the telescopic pipe, and the telescopic pipe is connected with the seat or abuts against an external supporting surface; an elastic piece is arranged between the connecting pipe and the telescopic pipe and used for supporting the connecting pipe. And the elastic piece is arranged in the connecting pipe and the telescopic pipe. The elastic structure for the seat and the spring seat have the advantages that the connecting pipe is matched with the telescopic pipe, so that a guiding effect can be achieved; the elastic piece is arranged in the connecting pipe and the telescopic pipe, so that people are prevented from touching the elastic piece, and the safety is better.

Description

Technical Field

[0001] The utility model relates to the technical field of seats, in particular to an elastic structure for seats and a spring chair. Background Art

[0002] In the prior art, for example, Chinese invention patent publication number CN107495702A discloses a portable spring chair, comprising a left and a right support frame, wherein the left and the right support frame both constitute a square ring structure, a curved tube for constituting a chair back is arranged above the square ring structure, the curved tube and the square ring structure are integrally formed, the length of the square ring structure is 50 to 60 cm, and the width thereof is 45 to 50 cm; left and right chair feet, wherein the left and the right chair feet are pivotally connected to the left and the right support frames respectively; left and right spring devices, wherein one side of the left and the right spring devices are pivotally connected to the left and the right chair feet, and the other side of the left and the right spring devices are pivotally connected to the left and the right support frames; two U-shaped frames, wherein the two U-shaped frames are cross-shaped and movably connected, and the open ends on both sides of the U-shaped frames are pivotally connected to the square ring structure; a limiting device, wherein the limiting device comprises four fixing rods, and the fixing rods are respectively connected to the square ring structure and the U-shaped frame. However, the left and right spring devices of the portable spring chair are arranged outside, which may easily pinch people who are close to it, posing a safety risk. Utility Model Content

[0003] An object of the present application is to provide an elastic structure for a seat and a spring chair with better safety.

[0004] The technical solution adopted in the present application is: an elastic structure for a seat, including a connecting tube and a telescopic tube, one end of the connecting tube is used to be fixedly connected to the seat, and the other end of the connecting tube is slidably connected to the telescopic tube, and the telescopic tube is used to connect to the seat or abut against an external support surface; an elastic member is provided between the connecting tube and the telescopic tube, and the elastic member is used to provide support for the connecting tube; the elastic member is arranged in the connecting tube and the telescopic tube.

[0005] Compared with the prior art, the advantage of the present application is that the connection tube and the telescopic tube cooperate to play a guiding role; the elastic member is arranged in the connection tube and the telescopic tube to prevent people from touching the elastic member, which improves safety.

[0006] In some embodiments of the present application, the elastic member is a spring, a first fixing plate is provided in the connecting tube, a second fixing plate is provided in the telescopic tube, and both ends of the spring are respectively connected to the first fixing plate and the second fixing plate.

[0007] Furthermore, a first through hole is provided on the first fixing plate, a second through hole is provided on the second fixing plate, bolts are passed through the connecting tube and the telescopic tube, the bolts pass through the first through hole, the spring and the second through hole in sequence, the head of the bolt abuts against the first fixing plate, the tail of the bolt is connected to a nut, the nut abuts against the second fixing plate, and both ends of the spring abut against the first fixing plate and the second fixing plate respectively.

[0008] In some embodiments of the present application, the bottom of the telescopic tube abuts against an external support surface; and a foot cover is provided on the bottom of the telescopic tube.

[0009] A spring chair comprises the above-mentioned elastic structure for a seat, a chair frame and a seat surface, wherein the chair frame comprises a folding frame and two supporting frames, and the two supporting frames are connected by the folding frame; one end of a connecting pipe is fixedly connected to the supporting frame.

[0010] In some embodiments of the present application, the folding frame includes a limiting rod and two U-shaped rods, the two U-shaped rods are cross-shaped and movably connected, the open ends on both sides of the U-shaped rod are hinged to the support frame, the two ends of the limiting rod are respectively hinged to the support frame and the lower part of the U-shaped rod, and the opening of the U-shaped rod faces downward; when the folding frame is unfolded into place, part of the limiting rod is located below the U-shaped rod and abuts against the U-shaped rod; the two sides of the chair surface are connected to the bottom edges of the two U-shaped rods.

[0011] Furthermore, a water cup bag is provided on the bottom edge of the U-shaped rod; and a storage bag is provided on the bottom edge of the U-shaped rod.

[0012] In some embodiments of the present application, the support frame is rectangular as a whole; the support frame includes an upper rod, a front rod, a lower rod and a rear rod connected in sequence, the lower rod and the rear rod are connected by an oblique rod, the lowest point of the rear rod is higher than the lower rod, and one end of the connecting tube is connected to the rear rod; the front rod and the upper rod and the lower rod are all arc transitions.

[0013] Furthermore, a first cushion block is provided at one end of the lower rod connected to the front rod; a second cushion block is provided at one end of the lower rod connected to the oblique rod; and a curved surface is provided on one side of the second cushion block facing the rear rod.

[0014] In some embodiments of the present application, the chair frame includes a backrest support mechanism and two backrest frames, the two backrest frames are respectively connected to a support frame, the backrest frame is located above the support frame, both sides of the seat surface are connected to the two backrest frames, the backrest support mechanism is located between the two backrest frames, and the backrest support mechanism is used to tighten the seat surface on the backrest frames; the two backrest frames and the two elastic members are located on the same side.

[0015] Furthermore, the seat back support mechanism includes a locking handle and two connecting rods, the locking handle is located between the two connecting rods, and the two ends of the connecting rod are respectively hinged to the seat back frame and the locking handle; the locking handle is provided with a mounting groove, one end of the connecting rod is located on the mounting groove, and when the two connecting rods are in the same straight line, the connecting rod abuts against the mounting groove. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of Embodiment 1 of the present utility model;

[0017] Figure 2 It is a cross-sectional view of Example 1 of the utility model;

[0018] Figure 3 This is a schematic diagram of the structure of the second embodiment of the utility model Figure 1 ;

[0019] Figure 4 This is a schematic diagram of the structure of the second embodiment of the utility model Figure 2 ;

[0020] Figure 5 It is a cross-sectional view of Embodiment 2 of the present utility model;

[0021] Figure 6 yes Figure 5 A magnified view of part A in FIG.

[0022] Figure 7 yes Figure 5 A magnified view of part B in FIG.

[0023] Figure 8 It is a structural schematic diagram of the chair back support mechanism of Example 2 of the present utility model.

[0024] In the figure: 1. chair frame; 2. seat surface; 3. folding frame; 4. support frame; 6. connecting pipe; 7. telescopic pipe; 8. spring; 9. first fixing plate; 10. second fixing plate; 11. first through hole; 12. second through hole; 13. bolt; 14. nut; 15. foot cover; 16. limit rod; 17. U-shaped rod; 18. water cup bag; 19. storage bag; 20. upper rod; 21. front rod; 22. lower rod; 23. rear rod; 24. oblique rod; 25. first cushion block; 26. second cushion block; 27. arc surface; 28. chair back support mechanism; 29. ​​chair back frame; 30. locking handle; 31. connecting rod; 32. mounting groove. DETAILED DESCRIPTION

[0025] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined purpose of the utility model, the specific implementation method, structure, characteristics and effects of the present invention are described in detail below in combination with the accompanying drawings and preferred embodiments.

[0026] Embodiment 1:

[0027] This embodiment provides an elastic structure for a seat, such as Figure 1 , Figure 2 As shown, it includes a connecting tube 6 and a telescopic tube 7. One end of the connecting tube 6 is fixedly connected to the seat, and the other end of the connecting tube 6 is slidably inserted into the telescopic tube 7. The telescopic tube 7 is connected to the seat or abuts against an external support surface. An elastic member is provided between the connecting tube 6 and the telescopic tube 7, and the elastic member is used to provide support for the connecting tube 6. The elastic member is arranged in the connecting tube 6 and the telescopic tube 7.

[0028] The connection tube 6 and the telescopic tube 7 cooperate with each other to play a guiding role; the elastic member is arranged in the connection tube 6 and the telescopic tube 7 to prevent people from touching the elastic member, thereby improving safety.

[0029] In order to ensure the reliability of the elastic member, the elastic member is a spring 8, a first fixing plate 9 is provided in the connecting tube 6, the first fixing plate 9 is fixedly connected to the inner wall of the connecting tube 6, a second fixing plate 10 is provided in the telescopic tube 7, the second fixing plate 10 is fixedly connected to the inner wall of the telescopic tube 7, and both ends of the spring 8 are respectively connected to the first fixing plate 9 and the second fixing plate 10. The spring 8 is located between the first fixing plate 9 and the second fixing plate 10. When the telescopic tube 7 moves toward the connecting tube 6, the distance between the first fixing plate 9 and the second fixing plate 10 decreases, so that the spring 8 is compressed, thereby providing a supporting force.

[0030] In order to ensure reliable connection of the spring 8, a first through hole 11 is provided on the first fixing plate 9, a second through hole 12 is provided on the second fixing plate 10, and bolts 13 are passed through the connecting tube 6 and the telescopic tube 7. The bolts 13 pass through the first through hole 11, the spring 8 and the second through hole 12 in sequence. The head of the bolt 13 abuts against the first fixing plate 9, and the tail of the bolt 13 is connected to a nut 14, which abuts against the second fixing plate 10. The two ends of the spring 8 abut against the first fixing plate 9 and the second fixing plate 10 respectively.

[0031] In order to prevent slipping and protect the ground, the bottom of the telescopic tube 7 abuts against an external support surface; a foot cover 15 is provided on the bottom of the telescopic tube 7 .

[0032] In this embodiment, the connecting tube 6 and the telescopic tube 7 are both round tubes. Of course, the connecting tube 6 and the telescopic tube 7 can also be square tubes or tubes of other shapes; the elastic structure can be used on different types of seats.

[0033] Embodiment 2:

[0034] This embodiment provides a spring chair, such as Figure 3-Figure 6As shown, it includes an elastic structure for a seat as described in Example 1, a chair frame 1 and a seat surface 2, the chair frame 1 includes a folding frame 3 and two support frames 4, and the two support frames 4 are connected by the folding frame 3; one end of the connecting pipe 6 is fixedly connected to the support frame 4, and in the uncompressed state, the bottom surface of the telescopic pipe 7 is lower than the lowest point of the support frame 4. Both sides of the seat surface 2 are connected to the folding frame 3; the elastic member is arranged on the same side. In this embodiment, the folding frame 3, the support frame 4 and the seat back frame 29 are all made of steel pipes.

[0035] The spring chair can rock when pushed backward, thus realizing the function of a rocking chair; the design of the folding frame 3 facilitates folding and storage.

[0036] In order to ensure the reliability of the folding frame 3, the folding frame 3 includes a limit rod 16 and two U-shaped rods 17. The two U-shaped rods 17 are cross-shaped and movably connected. The two open ends of the U-shaped rod 17 are hinged to the support frame 4. The two ends of the limit rod 16 are respectively hinged to the support frame 4 and the lower part of the U-shaped rod 17. The opening of the U-shaped rod 17 faces downward. When the folding frame 3 is unfolded, part of the limit rod 16 is located below the U-shaped rod 17 and abuts against the U-shaped rod 17. The two sides of the seat 2 are connected to the bottom edges of the two U-shaped rods 17. In this embodiment, four limit rods 16 are provided, and one limit rod 16 is provided on both sides of the U-shaped rod 17. The two sides of the U-shaped rod 17 are the side edges, and the bottom edge is connected to the two side edges. The limiting rod 16 is used for limiting the outward opening of the U-shaped rod 17 and for connecting the U-shaped rod 17 with the front rod 21 and the rear rod 23, so as to ensure the reliable connection of the U-shaped rod 17; the U-shaped rod 17 is cross-type movably connected, that is, the intersection of the two U-shaped rods 17 is hinged, so that the two U-shaped rods 17 are simply and conveniently rotated with each other. When the U-shaped rod 17 rotates, the open ends on both sides of the U-shaped rod 17 respectively drive the lower part of the front rod 21 and the lower part of the rear rod 23, and the two sides of the U-shaped rod 17 away from the open end respectively drive the upper part of the front rod 21 and the upper part of the rear rod 23 through the limiting rod 16, so that the front rod 21 and the rear rod 23 can be driven smoothly, so that the support frame 4 is close to or away from it, so as to realize the folding or unfolding of the spring chair.

[0037] In order to improve practicality, a water cup bag 18 is provided on the bottom edge of the U-shaped rod 17 ; a storage bag 19 is provided on the bottom edge of the U-shaped rod 17 .

[0038] In order to ensure the reliability of the support frame 4, the support frame 4 is rectangular in shape as a whole, has high structural strength, and is simple and beautiful in appearance; the support frame 4 includes an upper rod 20, a front rod 21, a lower rod 22, and a rear rod 23 connected in sequence, the lower rod 22 and the rear rod 23 are connected by an inclined rod 24, the lowest point of the rear rod 23 is higher than the lower rod 22, and one end of the connecting tube 6 is connected to the rear rod 23; the front rod 21 and the upper rod 20 and the lower rod 22 are all arc transitions. The open ends on both sides of the U-shaped rod 17 are hinged to the front rod 21 and the rear rod 23 respectively. The design of the inclined rod 24 allows the connection between the inclined rod 24 and the rear rod 23 to be used as a rotation fulcrum to increase the swing amplitude of the spring chair.

[0039] In order to place it firmly, the end of the lower rod 22 connected to the front rod 21 is provided with a first cushion block 25; the end of the lower rod 22 connected to the oblique rod 24 is provided with a second cushion block 26; Figure 7 As shown, the second pad 26 has a curved surface 27 on one side facing the rear rod 23. The design of the first pad 25 and the second pad 26 can increase the stability of the spring chair; the design of the curved surface 27 on the second pad 26 can make the spring chair shake more stably.

[0040] In order to ensure the backrest is reliable, the chair frame 1 includes a backrest support mechanism 28 and two backrest frames 29. The two backrest frames 29 are respectively connected to a support frame 4. The backrest frames 29 are located above the support frame 4. The two sides of the seat surface 2 are connected to the two backrest frames 29. The backrest support mechanism 28 is located between the two backrest frames 29. The backrest support mechanism 28 is used to tighten the seat surface 2 on the backrest frames 29. The two backrest frames 29 and the two elastic members are located on the same side. The design of the backrest frame 29 extends the skeleton upward so that the user can lean on it.

[0041] In order to ensure the reliability of the seat back support mechanism 28, Figure 8 As shown, the seat back support mechanism 28 includes a locking handle 30 and two connecting rods 31. The locking handle 30 is located between the two connecting rods 31. The two ends of the connecting rod 31 are hinged to the seat back frame 29 and the locking handle 30 respectively. The locking handle 30 is provided with a mounting groove 32. One end of the connecting rod 31 is located on the mounting groove 32. When the two connecting rods 31 are in the same straight line, the connecting rod 31 abuts against the mounting groove 32. The connecting rod 31 is designed to be expanded outward to tighten the seat surface 2. The locking handle 30 is designed to be in a locked state when the connecting rod 31 abuts against the mounting groove 32. This can not only ensure that the seat surface 2 is tightened, but also prevent the seat back frames 29 on both sides from folding, so that the spring chair can be unfolded stably. When unlocking, you only need to lift the locking handle 30 upwards, which is simple and convenient to unlock.

[0042] The above description is only a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. An elastic structure for a seat, characterized in that: The invention comprises a connecting tube (6) and a telescopic tube (7), wherein one end of the connecting tube (6) is used for being fixedly connected to a seat, and the other end of the connecting tube (6) is slidably connected to the telescopic tube (7), and the telescopic tube (7) is used for being connected to the seat or abutting against an external supporting surface; an elastic member is provided between the connecting tube (6) and the telescopic tube (7), and the elastic member is used for providing support to the connecting tube (6); and the elastic member is arranged in the connecting tube (6) and the telescopic tube (7).

2. The elastic structure for a seat according to claim 1, characterized in that: The elastic member is a spring (8), a first fixing plate (9) is arranged in the connecting tube (6), a second fixing plate (10) is arranged in the telescopic tube (7), and two ends of the spring (8) are respectively connected to the first fixing plate (9) and the second fixing plate (10).

3. The elastic structure for a seat according to claim 2, characterized in that: The first fixing plate (9) is provided with a first through hole (11), the second fixing plate (10) is provided with a second through hole (12), a bolt (13) is passed through the connecting tube (6) and the telescopic tube (7), the bolt (13) passes through the first through hole (11), the spring (8) and the second through hole (12) in sequence, the head of the bolt (13) abuts against the first fixing plate (9), the tail of the bolt (13) is connected with a nut (14), the nut (14) abuts against the second fixing plate (10), and the two ends of the spring (8) abut against the first fixing plate (9) and the second fixing plate (10) respectively.

4. The elastic structure for a seat according to claim 1, characterized in that: The bottom of the telescopic tube (7) abuts against an external support surface; and a foot sleeve (15) is sleeved on the bottom of the telescopic tube (7).

5. A spring chair, characterized in that: It comprises an elastic structure for a seat, a chair frame (1) and a seat seat (2) as described in any one of claims 1 to 4, wherein the chair frame (1) comprises a folding frame (3) and two supporting frames (4), and the two supporting frames (4) are connected via the folding frame (3); one end of the connecting tube (6) is fixedly connected to the supporting frame (4).

6. A spring chair according to claim 5, characterized in that: The folding frame (3) comprises a limiting rod (16) and two U-shaped rods (17), the two U-shaped rods (17) are cross-shaped and movably connected, the two opening ends of the U-shaped rod (17) are hinged to the support frame (4), the two ends of the limiting rod (16) are respectively hinged to the support frame (4) and the lower part of the U-shaped rod (17), and the opening of the U-shaped rod (17) faces downward; when the folding frame (3) is unfolded in place, part of the limiting rod (16) is located below the U-shaped rod (17) and abuts against the U-shaped rod (17); the two sides of the chair surface (2) are connected to the bottom edges of the two U-shaped rods (17); a water cup bag (18) is provided on the bottom edge of the U-shaped rod (17); and a storage bag (19) is provided on the bottom edge of the U-shaped rod (17).

7. The spring chair according to claim 5, characterized in that: The support frame (4) is rectangular in shape as a whole; the support frame (4) comprises an upper rod (20), a front rod (21), a lower rod (22) and a rear rod (23) which are connected in sequence; the lower rod (22) and the rear rod (23) are connected via an oblique rod (24); the lowest point of the rear rod (23) is higher than the lower rod (22); one end of the connecting pipe (6) is connected to the rear rod (23); and arc transitions are formed between the front rod (21) and the upper rod (20) and the lower rod (22).

8. The spring chair according to claim 7, characterized in that: A first cushion block (25) is provided at one end of the lower rod (22) connected to the front rod (21); a second cushion block (26) is provided at one end of the lower rod (22) connected to the oblique rod (24); and a curved surface (27) is provided on one side of the second cushion block (26) facing the rear rod (23).

9. The spring chair according to claim 5, characterized in that: The chair frame (1) comprises a backrest support mechanism (28) and two backrest frames (29), the two backrest frames (29) are respectively connected to a support frame (4), the backrest frames (29) are located above the support frame (4), both sides of the seat surface (2) are connected to the two backrest frames (29), the backrest support mechanism (28) is located between the two backrest frames (29), and the backrest support mechanism (28) is used to tighten the seat surface (2) on the backrest frames (29); the two backrest frames (29) and the two elastic members are located on the same side.

10. The spring chair according to claim 9, characterized in that: The chair back support mechanism (28) comprises a locking handle (30) and two connecting rods (31); the locking handle (30) is located between the two connecting rods (31); two ends of the connecting rod (31) are respectively hinged to the chair back frame (29) and the locking handle (30); a mounting groove (32) is provided on the locking handle (30); one end of the connecting rod (31) is located on the mounting groove (32); when the two connecting rods (31) are in a colinear state, the connecting rod (31) abuts against the mounting groove (32).

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