Novel seat

Abstract

The utility model provides a novel chair which comprises a chair seat and chair legs symmetrically arranged on the left side and the right side of the chair seat, matching parts are arranged on the left side and the right side of the chair seat, adjusting pieces are arranged between the matching parts and the chair legs, supporting parts on the adjusting pieces are connected with the chair seat in a front-back sliding mode, and sliding parts on the adjusting pieces are connected with the chair legs in a longitudinal sliding mode. The seat has the adjusting functions of sliding back and forth and lifting up and down at the same time, the structure of the seat is simplified, the appearance of the seat is optimized, and the cost of the seat is reduced.

Description

Technical Field

[0001] The utility model relates to the field of seats, in particular to a novel seat. Background Art

[0002] Most of the existing seats on the market have the function of adjusting the sitting area, such as a learning seat for children, which can adjust the height and depth of the seat to suit children of different ages and developmental states.

[0003] For example, in the children's chair patent with announcement number CN218738137, the seat includes a front height adjustment rod and a rear height adjustment rod on the chair legs, and the front height adjustment rod is slidably connected to the first support rod sleeve, and the two first support rod sleeves are connected by a seat support rod, so that the seat is connected to the two front height adjustment rods. When the first support rod sleeve slides up and down relative to the front height adjustment rod, the seat can be adjusted to a corresponding sitting height; in addition, front and rear adjustment rods are welded and fixed on the seat support rod, and the front and rear adjustment rods are connected to the bottom end of the seat, so that the seat can slide back and forth and adjust the seat depth, but the seat still has defects.

[0004] Firstly, the bottom support of the entire seat depends entirely on the seat support rod, and the seat support rod needs to span the seat in the left and right directions. Therefore, the seat support rod occupies a large space at the bottom of the seat, which increases the cost of using the seat and affects the appearance of the seat.

[0005] Secondly, the seat support rod and the front and rear adjustment rod provide support force for the seat, but no support member is set at the rear end of the front and rear adjustment rod, so that the rear end of the front and rear adjustment rod is suspended in the air, which makes the force of the entire seat concentrated on the first support rod sleeve. When the user sits down, the first support rod sleeve will also be subjected to a backward twisting force, which will cause the service life of the first support rod sleeve to be reduced; and in order to meet the strength requirements of the first support rod sleeve, the production cost and process requirements of the first support rod sleeve will be correspondingly increased. Summary of the invention

[0006] In order to solve the above-mentioned technical problems, the purpose of the utility model is to provide a new type of chair. By connecting the adjusting parts between the matching parts on the left and right sides of the seat and the chair legs, the seat has the adjustment functions of sliding forward and backward and lifting up and down, which simplifies the structure of the seat, optimizes the appearance of the seat, and reduces the cost of the seat.

[0007] The technical solution of the utility model is achieved in this way:

[0008] A new type of seat, comprising:

[0009] The seat, including the matching parts on the left and right sides;

[0010] The chair legs are symmetrically arranged on the left and right sides of the seat;

[0011] The adjusting member is connected between the chair leg and the matching part, and includes a sliding part, which is slidably connected to the chair leg so that the seat can be lifted up and down and stay at a corresponding position; a supporting part is provided on the inner side of the sliding part, and a sliding structure is provided between the supporting part and the matching part. The sliding structure includes a sliding groove extending forward and backward, and an insert block inserted in the sliding groove. The insert block is arranged on one of the supporting part and the matching part, and the sliding groove is arranged on the other of the supporting part and the matching part, so that the seat can slide forward and backward and stay at a corresponding position.

[0012] Preferably, the slide groove is arranged on the matching part of the seat, and the plug block is connected to the support part in an integrally formed manner; the integrally formed plug block has high structural strength and can provide stable support for the seat to slide back and forth.

[0013] Preferably, the ratio of the front-to-back length of the plug block to the front-to-back length of the slide slot is 1:3-1:2; a reasonable length range of the plug block can have sufficient contact area with the matching part, making the sliding connection of the seat more stable.

[0014] Preferably, the support portion includes a limiting peripheral edge protruding outward from the outer side thereof, and the limiting peripheral edge abuts against the outer side of the matching portion; the insert block is provided with a through hole that passes through the insert block and the support portion left and right, and the through hole is provided with an internal threaded sleeve that penetrates into the through hole from the inner side of the matching portion, and a limiting cap is provided at one end of the internal threaded sleeve that is located on the inner side of the matching portion, and a locking bolt is threadedly connected to the internal threaded sleeve from the outer side of the matching portion, so that the head of the locking bolt abuts against the outer side of the support portion, and then the limiting cap abuts against the inner side of the matching portion; the matching portion of the seat is limited between the limiting peripheral edge and the limiting cap, so that the seat can slide back and forth stably,

[0015] Preferably, the locking bolt head is connected to a handle for easy rotation; operating the handle can make the locking bolt quickly and effortlessly lock or loosen the internal threaded sleeve, while facilitating assembly, the matching part of the seat can also be controlled by turning the handle to clamp or loosen between the limit edge and the limit cap, so that the seat can be freely switched between the locked state and the sliding state.

[0016] Preferably, a limiting rib is integrally formed on the outer wall of the internal threaded sleeve, and a groove is preset on the inner wall of the through hole. The limiting rib is located in the groove to limit the circumferential rotation of the internal threaded sleeve along its own axis; thereby, the internal threaded sleeve can be tightened or loosened when the locking bolt rotates forward or reversely.

[0017] Preferably, the sliding portion extends upward and forms an extension portion, and the support portion is connected to the extension end position of the extension portion; thereby compensating for the height difference between the sliding portion on the chair leg and the seat.

[0018] Preferably, a cross bar is connected between the two adjustment members on the left and right sides of the seat; the extension part is provided with preset holes running through the left and right sides, and the ends of the cross bar are preset with corresponding screw holes, and the connecting screws pass through the preset holes and are screwed into the screw holes to connect the ends of the cross bar with the adjustment members; when the seat is adjusted in height, the adjustment members on both sides can move synchronously.

[0019] Preferably, the sliding portion, the extending portion and the supporting portion are integrally formed, so as to facilitate the processing of the adjusting member and the assembly of the seat.

[0020] Preferably, the chair legs include a front leg extending obliquely forward and a rear leg extending obliquely backward, the rear leg being connected to the front leg and forming an inverted V-shaped structure, and the sliding part being slidably connected to the front leg; the chair leg structure with the inverted V-shaped structure is more stable, making the chair seat more stable when raised and lowered.

[0021] Preferably, the front chair leg has a plurality of gear holes evenly distributed along its length direction, the sliding part is a sleeve slidably connected to the front chair leg, the sleeve is connected to a control component, the control component includes a plug column that is plugged into or out of the gear hole, and the plug column is controlled to be inserted into or out of the gear hole to make the sliding part fixed or slidably adjusted relative to the front chair leg, thereby realizing the lifting, adjustment and positioning of the seat on the front chair leg.

[0022] Preferably, the control component includes a control member and an elastic member acting on the control member, and the control member includes a control part and a plug post connected to the control part; the control component has a locked state and an unlocked state, and when the control component is in the locked state, the plug post is inserted into one of the gear holes on the front chair leg; when the control component is switched to the unlocked state, the control part can make the plug post disengage from the gear hole under the action of external force, and cause the elastic member to deform, and at this time the sliding part can slide in the length direction of the chair leg; when the external force is removed, the elastic member resets and generates elastic force, and the control member drives the plug post to be inserted into the corresponding gear hole under the action of the elastic force, and the control component switches back to the locked state; the cooperation between the elastic member and the control member can make the control process between the plug post and the gear hole simpler and more labor-saving.

[0023] Preferably, the chair leg includes a vertical chair leg body and a load-bearing part at the bottom end of the chair leg body, and the load-bearing part is in contact with the ground; the sliding part is slidably connected to the chair leg body along the longitudinal direction; on the premise that the load-bearing part has provided stable support, the vertical chair leg body can be slidably connected to the sliding part, so that the chair seat can be raised and lowered.

[0024] Preferably, the chair seat or chair legs are made of wood or plastic. Wooden or plastic chair seats and chair legs are low in cost and have high structural strength.

[0025] The beneficial effects of the utility model using the above technical solution are:

[0026] The utility model provides a new type of seat, compared with the prior art:

[0027] 1. Compared with the design of the seat support rod in the background comparative document, the seat in the utility model omits the seat support rod and directly sets an adjustment piece between the chair legs and the matching parts on the left and right sides of the seat to enable the seat to achieve longitudinal sliding adjustment and front and rear sliding adjustment, thereby simplifying the seat structure and optimizing the space at the bottom of the seat and the overall appearance of the seat.

[0028] 2. The adjusting parts are arranged on the left and right sides of the seat, which can form effective and stable support for both sides of the seat, and there will be no situation where a single adjusting part is subjected to excessive force. Therefore, compared with the first support rod sleeve in the background comparison document, the structural strength requirements and corresponding production costs of the adjusting parts are relatively low. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 is a schematic diagram of the structure of the seat;

[0030] Figure 2 is a side view of the seat;

[0031] Figure 3 is an enlarged cross-sectional view of the support portion;

[0032] Figure 4 This is an exploded view of the components on the seat;

[0033] Figure 5 It is a structural schematic diagram of the regulating member;

[0034] Figure 6 is a schematic diagram of the structure of the adjusting member at another angle;

[0035] Figure 7 This is an enlarged cutaway view of the control assembly on the front chair leg;

[0036] Figure 8 The exploded view of the crossbar and adjustment parts on the seat;

[0037] Fig. 9 is a schematic side view of the seat in Example 2;

[0038] The figures are marked as follows: 1-chair leg, 2-chair seat, 3-adjusting member, 4-cross bar, 5-sliding connection assembly, 6-bushing, 7-protective cover, 8-limiting screw, 9-elastic member, 10-control part, 11-gear hole, 12-connecting screw, 101-insertion column, 1a-front chair leg, 1b-rear chair leg, 1c-chair leg body, 1d-bearing part, 21-slide groove, 22-matching part, 31-sliding part, 32-extension part, 33-insertion block, 33a-support part, 34-limiting periphery, 35-through hole, 36-card slot, 37-preset hole, 38-screw hole, 39-bayonet, 51-locking bolt, 52-handle, 53-internal threaded sleeve, 54-limiting cap, 55-limiting cap, 61-elastic buckle, 62-avoidance cavity, a-transverse plate, b-clamping area. DETAILED DESCRIPTION

[0039] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0040] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the protection scope of the present invention is not limited to the specific embodiments disclosed below.

[0041] The specific implementation of the utility model is as follows:

[0042] Example 1: Figure 1-8 As shown, the utility model provides a new type of seat, including:

[0043] The seat 2 includes a matching portion 22 on the left and right sides thereof;

[0044] Chair legs 1 are symmetrically arranged on the left and right sides of the chair seat 2;

[0045] The adjusting member 3 is connected between the chair leg 1 and the matching portion 22, and includes a sliding portion 31. The sliding portion 31 is slidably connected to the chair leg 1, so that the seat 2 can be lifted up and down and stay at a corresponding position; a supporting portion 33a is connected to the inner side of the sliding portion 31, and a sliding structure is provided between the supporting portion 33a and the matching portion 22. The sliding structure includes a slide groove 21 extending forward and backward, and an insert block 33 inserted into the slide groove 21. The insert block 33 is arranged on one of the supporting portion 33a and the matching portion 22, and the slide groove 21 is arranged on the other of the supporting portion 33a and the matching portion 22, so that the seat 2 can slide forward and backward and stay at a corresponding position.

[0046] Furthermore, there are two ways of setting the sliding structure, namely, the slide groove 21 is set on the support part 33a, and the plug block 33 is set on the matching part 22 of the seat 2, or the slide groove 21 is set on the matching part 22, and the plug block 33 is set on the support part 33a. In this embodiment, the latter is explained, that is, the slide groove 21 is set on the matching part of the seat 2, and the plug block 33 is connected to the support part 33a in an integrally formed manner; the integrally formed plug block 33 has a high structural strength and can provide stable support for the seat 2 to slide back and forth.

[0047] Furthermore, in order to ensure a stable fit between the insert block 33 and the slide slot 21, the ratio of the front-to-back length of the insert block 33 to the front-to-back length of the slide slot 21 is 1:3-1:2; a reasonable length range of the insert block 33 can have a sufficient contact area with the matching portion 22, making the sliding connection of the seat 2 more stable.

[0048] Further, if Figure 3-6 As shown, in order to prevent the seat 2 from separating from the support portion 33a in the left and right directions, the support portion 33a includes a limiting peripheral edge 34 protruding outward from the outer side thereof, and the limiting peripheral edge 34 abuts against the outer side of the matching portion 22; a through hole 35 that passes through the insert block 33 and the support portion 33a from left to right is provided on the plug block 33, and a sliding connection component 5 is installed on the support portion 33a, and the sliding connection component 5 includes an internal threaded sleeve 53 that penetrates the through hole 35 from the inner side of the matching portion 22, and a limiting cap 54 is provided at one end of the internal threaded sleeve 53 that is located on the inner side of the matching portion 22, and a locking bolt 51 is threadedly connected to the internal threaded sleeve 53 from the outer side of the matching portion 22, so that the head of the locking bolt 51 abuts against the outer side of the support portion 33a, and then the limiting cap 54 abuts against the inner side of the matching portion 22; the matching portion 22 of the seat is limited between the limiting peripheral edge 34 and the limiting cap 54, so that the seat 2 can slide back and forth stably,

[0049] Furthermore, in order to facilitate the assembly of the seat 2 and the control of the forward and backward sliding of the seat 2, a handle 52 that is easy to rotate is connected to the head of the locking bolt 51; operating the handle 52 can make the locking bolt 51 quickly and labor-savingly lock or loosen with the internal threaded sleeve 53, while facilitating assembly, the matching part 22 of the seat 2 can also be controlled by rotating the handle 52 to clamp or loosen between the limiting periphery 34 and the limiting cap 54, so that the seat 2 can be freely switched between the locked state and the sliding state.

[0050] Furthermore, in order to keep the internal threaded sleeve 53 circumferentially fixed when the handle 52 is rotated, a limiting rib 55 is integrally formed on the outer wall of the internal threaded sleeve 53, and a groove 36 is preset on the inner wall of the through hole 35. The limiting rib 55 is located in the groove 36 to limit the circumferential rotation of the internal threaded sleeve 53 along its own axis; thereby, the internal threaded sleeve 53 can be tightened or loosened when the locking bolt 51 rotates forward or reversely.

[0051] Furthermore, when there is a height difference between the seat 2 and the sliding portion 31 on the chair leg 1, in order to ensure the supporting effect of the adjustment member 3 on the seat 2, the sliding portion 31 extends upward and forms an extension portion 32, and the supporting portion 33a is connected to the extension end position of the extension portion 32; thereby compensating for the height difference between the sliding portion 31 on the chair leg 1 and the seat 2.

[0052] Further, if Figure 8 As shown, in order to keep the adjustment members 3 on the left and right sides of the seat 2 synchronized, a cross bar 4 is connected between the two adjustment members 3 on the left and right sides of the seat 2; the extension portion 32 is provided with a preset hole 37 that passes through the left and right sides, and the end of the cross bar 4 is preset with a corresponding screw hole 41, and the connecting screw 12 passes through the preset hole 37 and is screwed into the screw hole 41 to connect the end of the cross bar 4 with the adjustment member 3; when the seat 2 is adjusted in height, the adjustment members 3 on both sides can move synchronously.

[0053] Furthermore, the sliding portion 31, the extending portion 32, and the supporting portion 33a are integrally formed; the integrally formed structure has good structural strength and is also convenient for processing the adjusting member 3 and assembling the seat.

[0054] Furthermore, the chair legs 1 include a front leg 1a extending obliquely forward and a rear leg 1b extending obliquely backward, the rear leg 1b is connected to the front leg 1a and has an inverted V-shaped structure, and the sliding portion 31 is slidably connected to the front leg 1a; the chair leg 1 with an inverted V-shaped structure is more stable, making the seat 2 more stable when it is raised and lowered.

[0055] Furthermore, the front chair leg 1a has a plurality of gear holes 11 evenly distributed along its length direction, the sliding portion 31 is a sleeve slidably connected to the front chair leg 1a, and the sleeve is connected to a control component, the control component includes a plug post 101 plugged into or out of the gear hole 11, and the plug post 101 is controlled to be inserted into or out of the gear hole 11 to make the sliding portion 31 fixed or slidably adjusted relative to the front chair leg 1a, so as to realize the lifting adjustment and positioning of the seat 2 on the front chair leg 1.

[0056] Further, if Figure 7As shown, the control component includes a control member and an elastic member 9 acting on the control member, and the control member includes a control part 10 and a plug 101 connected to the control part 10; the control component has a locked state and an unlocked state. When the control component is in the locked state, the plug 101 is inserted into one of the gear holes 11 on the front chair leg 1a; when the control component is switched to the unlocked state, the control part 10 can make the plug 101 disengage from the gear hole 11 under the action of external force, and cause the elastic member 9 to deform, and at this time the sliding part 31 can slide in the length direction of the chair leg 1; when the external force is removed, the elastic member 9 is reset and generates elastic force, and the control member drives the plug 101 to be inserted into the corresponding gear hole 11 under the action of the elastic force, and the control component is switched back to the locked state; the elastic member 9 cooperates with the control member to make the control process of the plug 101 and the gear hole 11 being inserted or disengaged simpler and more labor-saving.

[0057] Furthermore, the chair seat 2 or the chair leg 1 is a wooden component or a plastic component; the wooden or plastic chair seat 2 and chair leg 1 have low cost and high structural strength.

[0058] Furthermore, the inner side of the extension portion 32 has a transverse plate a extending toward the seat 2, and a clamping area b is formed between the transverse plate a and the strip-shaped plug-in block 33. The slide groove 21 extends forward and backward on the sliding portion 22 of the seat 2 and divides the sliding portion 22 into an upper portion and a lower portion. In order to avoid cracking of the lower portion of the sliding portion 22, that is, the lower edge of the sliding portion 22, the lower portion is in the clamping area b, thereby sharing the supporting force of the plug-in block 33 on the seat 2.

[0059] Furthermore, the cross bar 4 rests against the lower end of the transverse plate a to provide support for the transverse plate a, so that the transverse plate a transfers the support force of the seat 2 to the cross bar 4, thereby avoiding deformation or cracking caused by excessive force on the transverse plate a when sharing the support force.

[0060] Furthermore, a ring-shaped protruding periphery is provided at a corresponding position of the outer wall of the sleeve, and the plug post 101 passes through the tube wall of the sleeve inside the periphery and is snapped into the snap hole 11; a column is provided on the outer wall of the sleeve inside the periphery, and a screw hole 38 is preset on the column. The control part 10 is a shell structure with a hollow outer side, and a corresponding avoidance area is provided on the control part 10, and the control part 10 is sleeved on the column, and the elastic part 9 is a compression spring sleeved on the column, and a limiting screw 8 is matched in the screw hole 38 on the column, and the limiting screw 8 is against the compression spring; when operating the control part 10, pulling the control part 10 can compress the compression spring and generate elastic force, so that the plug post 101 is disengaged from the gear hole 11, and then the sliding part 31 and the seat 2 slide longitudinally; after releasing the control part 10, the compression spring is reset and releases the elastic force, so that the plug post 101 is snapped into the corresponding gear hole 11, so as to limit the up and down movement of the seat 2 after sliding into place.

[0061] Furthermore, a protective cover 7 is connected to the outside of the control unit 10 , and the protective cover 7 can block the outside of the control unit 10 to prevent debris from entering the control unit 10 .

[0062] Furthermore, a bushing 6 is connected inside the sleeve to separate the chair leg 1 and the sleeve; the bushing 6 is clamped with the sleeve; an elastic buckle 61 is provided on the bushing 6, and a bayonet 39 is provided on the sleeve. The elastic buckle 61 is clamped in the bayonet 39, thereby sliding synchronously with the sleeve and separating the chair leg 1 from the sleeve to prevent excessive wear of the sleeve and the chair leg 1.

[0063] Furthermore, a corresponding avoidance cavity 62 is provided on the bushing 6 , and the avoidance cavity 63 can provide an avoidance space for the plug post 101 , so that the plug post 101 can be smoothly inserted into the gear hole 11 .

[0064] Example 2: Fig. 9 As shown, the difference between this embodiment and the above-mentioned embodiment is that the chair leg 1 in this embodiment is vertically arranged, that is, the chair leg 1 includes a vertical chair leg body 1c, a bearing portion 1d at the bottom end of the chair leg body 1c, the bearing portion 1d is in contact with the ground, the bearing portion 1d is an inverted V-shaped structure, and the sliding portion 31 is connected to the chair leg body 1c in a longitudinal sliding manner; on the premise that the bearing portion 1d has provided stable support, the vertical chair leg body 1c can also be slidably connected with the sliding portion 31, so that the seat 2 can be raised and lowered, thereby achieving the same effect as in Example 1.

[0065] The above schematically describes the present invention and its implementation methods, which are not restrictive. The drawings show only one implementation method of the present invention, and the actual structure is not limited thereto. Therefore, if ordinary technicians in this field are inspired by it and design structural methods and embodiments similar to the technical solution without creativity without departing from the purpose of the present invention, they should all fall within the protection scope of the present invention.

Claims

1. A new type of seat, characterized in that: include: The chair seat (2) includes matching parts (22) on the left and right sides of the chair seat; Chair legs (1) are symmetrically arranged on the left and right sides of the chair seat (2); The adjusting member (3) is connected between the chair leg (1) and the matching portion (22), and comprises a sliding portion (31). The sliding portion (31) is slidably connected to the chair leg (1), so that the chair seat (2) can be lifted up and down and stay at a corresponding position; the sliding portion (31) has a supporting portion (33a) on the inner side, and a sliding structure is provided between the supporting portion (33a) and the matching portion (22). The sliding structure comprises a slide groove (21) extending forward and backward, and an insert block (33) inserted into the slide groove (21). The insert block (33) is arranged on one of the supporting portion (33a) and the matching portion (22), and the slide groove (21) is arranged on the other of the supporting portion (33a) and the matching portion (22), so that the chair seat (2) can slide forward and backward and stay at a corresponding position.

2. A new type of seat according to claim 1, characterized in that: The slide groove (21) is arranged on the matching portion of the seat (2), and the insert block (33) is connected to the support portion (33a) in an integrally formed manner.

3. A new type of seat according to claim 2, characterized in that: The ratio of the front-to-back length of the insert block (33) to the front-to-back length of the slide groove (21) is in the range of 1:3-1:

2.

4. A new type of seat according to claim 2, characterized in that: The support portion (33a) includes a limiting peripheral edge (34) protruding outward from the outer side of the support portion (33a), and the limiting peripheral edge (34) abuts against the outer side of the matching portion (22); the insert block (33) is provided with a through hole (35) that passes through the insert block (33) and the support portion (33a) left and right, and an internal threaded sleeve (53) is inserted into the through hole (35) from the inner side of the matching portion (22); a limiting cap (54) is provided at one end of the internal threaded sleeve (53) located inside the matching portion (22); a locking bolt (51) is threadedly connected to the internal threaded sleeve (53) from the outer side of the seat (2), so that the head of the locking bolt (51) abuts against the outer side of the support portion (33a), and the limiting cap (54) abuts against the inner side of the matching portion (22).

5. A novel seat according to claim 4, characterized in that: The head of the locking bolt (51) is connected with a handle (52) for easy rotation.

6. A new type of seat according to claim 4, characterized in that: A limiting rib (55) is integrally formed on the outer wall of the internally threaded sleeve (53), and a retaining groove (36) is preset on the inner wall of the through hole (35). The limiting rib (55) is located in the retaining groove (36) to limit the circumferential rotation of the internally threaded sleeve (53) along its own axis; thereby, the internally threaded sleeve (53) can be tightened or loosened when the locking bolt (51) rotates in the forward or reverse direction.

7. A new type of seat according to claim 1, characterized in that: The sliding portion (31) extends upward and forms an extension portion (32), and the support portion (33a) is connected to the extension end position of the extension portion (32).

8. A new type of seat according to claim 7, characterized in that: A cross bar (4) is connected between the two adjustment members (3) on the left and right sides of the seat (2); the extension portion (32) is provided with a preset hole (37) extending through the left and right sides; the end of the cross bar (4) is preset with a corresponding screw hole (41); the connecting screw (12) passes through the preset hole (37) and is screwed into the screw hole (41) to connect the end of the cross bar (4) to the adjustment member (3).

9. A novel seat according to claim 7, characterized in that: The sliding portion (31), the extending portion (32), and the supporting portion (33a) are integrally formed.

10. A novel seat according to claim 1, characterized in that: The chair legs (1) comprise a front chair leg (1a) extending obliquely forward and a rear chair leg (1b) extending obliquely backward; the rear chair leg (1b) is connected to the front chair leg (1a) and forms an inverted V-shaped structure; and the sliding portion (31) is slidably connected to the front chair leg (1a).

11. A new type of seat according to claim 10, characterized in that: The front chair leg (1a) is evenly distributed with a plurality of gear holes (11) along its length direction; the sliding portion (31) is a sleeve slidably connected to the front chair leg (1a); the sleeve is connected to a control component; the control component comprises a plug post (101) plugged into or out of the gear hole (11) to enable the sliding portion (31) to be fixed or slidably adjusted relative to the front chair leg (1a).

12. A novel seat according to claim 11, characterized in that: The control component comprises a control member and an elastic member (9) acting on the control member, and the control member comprises a control portion (10) and a plug post (101) connected to the control portion (10); the control component has a locked state and an unlocked state, and when the control component is in the locked state, the plug post (101) is inserted into one of the gear holes (11) on the front chair leg (1a); when the control component is switched to the unlocked state, the control portion (10) can cause the plug post (101) to escape from the gear hole (11) under the action of an external force, and cause the elastic member (9) to deform, and at this time the sliding portion (31) can slide in the length direction of the chair leg (1); when the external force is removed, the elastic member (9) is reset and generates elastic force, and the control member drives the plug post (101) to be inserted into the corresponding gear hole (11) under the action of the elastic force, and at this time the control component switches back to the locked state.

13. A novel chair according to claim 1, characterized in that: The chair leg (1) comprises a vertical chair leg body (1c), a bearing portion (1d) at the bottom end of the chair leg body (1c), the bearing portion (1d) being in contact with the ground; and a sliding portion (31) being slidably connected to the chair leg body (1c) along the longitudinal direction.

14. A novel chair according to claim 10 or 13, characterized in that: The chair seat (2) or the chair leg (1) is a wooden part or a plastic part.

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