Seat adjusting mechanism and seat

Abstract

The utility model provides a seat adjusting mechanism and a seat. The seat adjusting mechanism comprises a gear piece, a sliding positioning assembly and a flexible connecting assembly, the gear engaging piece in the sliding positioning assembly is pulled through the flexible connecting piece, so that the gear engaging piece is matched with a gear groove in the gear piece through elastic stretching and retracting of the gear engaging piece; the occupied space of the whole adjusting mechanism is reduced while the sliding positioning assembly locks or unlocks the chair seat, so that the universality of the adjusting mechanism is improved. According to the chair provided by the invention, the sliding positioning assembly and the gear piece which occupy a small space are arranged in the chair seat, so that the chair seat can slide back and forth; the occupied space of the adjusting mechanism outside the seat is further reduced, and the appearance of the seat is optimized.

Description

Technical Field

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

[0002] Some chairs on the market are configured with a front-to-back sliding structure. The reason for this design is that different users have different heights and corresponding sitting postures. Therefore, this seat that can slide back and forth can provide corresponding support for different sitting postures of different users. In order to keep the seat stable after sliding back and forth, the seat also requires a corresponding mechanism to lock the seat after the front-to-back position adjustment, so that the seat remains fixed in the front-to-back direction when sitting.

[0003] For example, in the patent of the seat adjustment mechanism with the announcement number CN219645365U, as shown in the patent Figure 1 As shown, the seat 1 is connected to the seat support rod 2 by sliding forward and backward, and a plurality of gear holes 21 distributed along the front-to-back direction are provided on one side of the seat support rod 2; the adjustment rod 3 in the locking assembly can move elastically left and right by relying on the spring 4, so that the end of the adjustment rod 3 exposed outside the seat 1 can be inserted into the gear hole 21 under the action of the spring 4 to lock the seat 1; but this adjustment mechanism has defects.

[0004] In this adjustment mechanism, the stability of the seat 1 after it stops sliding mainly depends on the cooperation between the adjustment rod 3 and the seat support rod 2. Therefore, the adjustment rod 3 and the seat support rod 2 must be rigid to ensure that the seat 1 does not move forward and backward after being locked. However, the rigid adjustment rod 3 must cross nearly half of the seat 1, and the rigid seat support rod 2 must cross the entire seat 1 in the front and rear directions. If the adjustment mechanism in this patent is set on an office chair or an ergonomic chair, in addition to making the adjustment mechanism occupy a larger layout space at the bottom of the seat, the appearance of the entire office chair or ergonomic chair will also appear bloated. Therefore, the versatility of this adjustment mechanism is not high. Summary of the invention

[0005] In order to solve the above-mentioned technical problems, the purpose of the utility model is to provide a seat adjustment mechanism, which pulls the gear member in the sliding positioning assembly through a flexible connecting member, so that the gear member cooperates with the gear slot on the gear member through its own elastic expansion and contraction; while realizing the locking or unlocking of the seat by the sliding positioning assembly, the space occupied by the entire adjustment mechanism is reduced, thereby improving the versatility of the adjustment mechanism.

[0006] Furthermore, a seat is provided, which realizes the forward and backward sliding of the seat by arranging a sliding positioning assembly and a shifting member that occupy a relatively small space inside the seat; the space occupied by the adjustment mechanism outside the seat is further reduced, and the appearance of the seat is optimized.

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

[0008] A seat adjustment mechanism, comprising:

[0009] A gear member, wherein a plurality of gear slots are evenly distributed front and back on the gear member;

[0010] The sliding positioning assembly includes a gear hanging member that can slide forward and backward synchronously with the seat, and the gear hanging member is provided with at least one gear tooth facing the gear slot; the gear hanging member can elastically expand and contract in a direction close to or away from the gear slot, and drive the gear tooth to engage in or disengage from the gear slot;

[0011] The flexible connection assembly includes a force-applying member arranged at the outer end of the seat, and a flexible transmission member located in the seat is connected between the force-applying member and the gear-engaging member;

[0012] The mechanism has a sliding state and a locking state. When the mechanism is in the locking state, the shift piece extends elastically and the gear tooth is inserted into one of the gear slots, thereby ensuring that the seat is fixed relative to the shift piece; when the mechanism switches to the sliding state, the force-applying member can tighten the flexible transmission member under the action of external force, so that the shift piece retracts elastically, thereby disengaging the gear tooth from the corresponding gear slot, at which point the seat can drive the shift piece to slide back and forth relative to the shift piece; when the shift piece slides to another gear slot driven by the seat, the external force on the force-applying member is removed, so that the flexible transmission piece is relaxed, at which point the shift piece extends elastically again, so that the gear tooth is inserted into another corresponding gear slot, thereby switching the mechanism back to the locking state.

[0013] Preferably, the force applying member is a rotating wrench rotatably connected to the seat; the rotating wrench can easily tighten or loosen the flexible connecting member by rotating itself.

[0014] Preferably, the flexible transmission member is a flexible pull wire connected between the shifting member and the rotating wrench; the flexible pull wire is simple and durable, occupies little space, and is easy to install.

[0015] Preferably, it also includes a guide buckle arranged in the seat, and the flexible pull wire is passed through the guide buckle along its own length direction; the flexible pull wire moves along its own length when tightened or relaxed, avoiding interference or entanglement between the flexible pull wire and other components in the seat due to excessive bending of the flexible pull wire.

[0016] Preferably, the sliding positioning assembly includes a mounting seat connected to the seat, the mounting seat is a hollow box body with a single-side opening, and the gear member is arranged in the mounting seat.

[0017] Preferably, a card block extending toward the gear slot is provided in the mounting seat, and a sliding guide groove is provided on the gear hanging piece, the position of which corresponds to the card block, and the card block is located in the sliding guide groove; the sliding guide groove acts as a guide, allowing the gear hanging piece to elastically extend and retract along a predetermined path, thereby preventing the gear hanging piece from deviating to other paths during elastic extension and retraction.

[0018] Preferably, a compression spring which can be elastically deformed in the direction toward the gear slot is provided in the sliding guide groove, and two ends of the compression spring abut against the inner wall of the sliding guide groove and the block respectively, so that the gear engaging member can elastically expand and contract in the direction toward the gear slot.

[0019] Preferably, the mounting seat is an open molded part formed integrally with the seat; the connection and installation process between the mounting seat and the seat is omitted, thereby improving the installation efficiency of the seat.

[0020] A seat is further provided, including a seat sliding mechanism, a seat, and a base connected to the lower end of the seat, wherein the seat sliding mechanism is arranged inside the seat; a shift piece is connected to the seat, and the seat is provided with an avoidance slide groove which passes downward and extends front and back, and the shift piece and the base are connected by screws passing through the avoidance slide groove.

[0021] Preferably, a tension spring in a stretched state is connected between the front end or rear end of the shift member and the seat; the tension spring can produce elastic deformation along the front-to-back direction when the seat slides back and forth; the seat is subjected to the elastic tension of the tension spring when it slides back and forth, making the sliding process of the seat more stable and uniform.

[0022] The principle of the utility model using the above technical solution is:

[0023] The utility model aims to provide a seat adjustment mechanism, which pulls a gear hanging member in a sliding positioning assembly through a flexible connecting member, so that the gear hanging member is matched with a gear slot on the gear member through its own elastic expansion and contraction.

[0024] A seat is further provided, in which a sliding positioning assembly and a shifting member occupying a relatively small space are arranged in a seat, and an avoidance slide groove is provided on the seat, so that the shifting member is screwed to a base through the avoidance slide groove.

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

[0026] 1. Compared with a rigid pull rod, the adjustment mechanism uses a flexible connector to pull the gear engaging member to make it cooperate with the gear member. Compared with a rigid adjustment pull rod, the flexible connector occupies less space and is convenient for installation and layout; therefore, this structural design has higher versatility.

[0027] 2. In the seat, an avoidance groove is provided on the seat, and the shift member is screwed to the base through the avoidance groove; the avoidance groove provides a connection space for the shift member and the base, and also provides a sliding space for the seat. This design allows the sliding positioning assembly and the shift member that occupy a smaller space to be arranged in the seat, further optimizing the space occupied by the adjustment mechanism and making the appearance of the seat more concise. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 is a schematic diagram of the structure of the seat;

[0029] Figure 2 This is an enlarged view of the mounting seat on the chair seat;

[0030] Figure 3 It is a schematic diagram of the structure of the gear member;

[0031] Figure 4 It is a schematic diagram of the structure of the gear-hanging part;

[0032] Figure 5 This is an enlarged view of the adjustment mechanism in the seat;

[0033] Figure 6 This is an enlarged view of the various components in the mounting base;

[0034] Figure 7 It is an enlarged view of each component at the connector location;

[0035] Figure 8 A cross-sectional view of the shift member connected between the base and the seat;

[0036] The figures are marked as follows: 1-shift member, 2-seat, 3-mounting seat, 4-shift member, 5-pull wire, 6-base, 7-compression spring, 8-tension spring, 9-rotating wrench, 10-connecting member, 11-shift slot, 12-hook, 13-screw hole, 21-accommodating slot, 22-avoidance slide slot, 31-block, 41-shift tooth, 42-sliding guide slot, 43-mounting port, 61-guide buckle. DETAILED DESCRIPTION

[0037] 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.

[0038] 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.

[0039] The specific implementation methods of the utility model are as follows:

[0040] like Figure 1-8 As shown, this embodiment provides a seat adjustment mechanism, comprising:

[0041] The shift member 1 is in the shape of an elongated strip, and a plurality of shift slots 11 are evenly distributed on the front and rear of the shift member 1;

[0042] The sliding positioning assembly includes a gear hanging member 4 that can slide synchronously with the seat 2 forward and backward. The gear hanging member 4 is a block-shaped body, and is provided with at least one gear tooth 41 facing the gear slot 11. The gear hanging member 4 can elastically expand and contract in a direction close to or away from the gear slot 11, and drive the gear tooth 41 to engage in or disengage from the gear slot 11.

[0043] The flexible connection assembly includes a force-applying member disposed at the outer end of the seat 2, and a flexible transmission member located in the seat 2 is connected between the force-applying member and the gear-hanging member 4;

[0044] The mechanism has a sliding state and a locking state. When the mechanism is in the locking state, the shift member 4 extends elastically and inserts the gear tooth 41 into one of the gear slots 11, thereby ensuring that the seat 2 is fixed relative to the gear member 1; when the mechanism switches to the sliding state, the force-applying member can tighten the flexible transmission member under the action of external force, so that the shift member 4 retracts elastically, thereby disengaging the gear tooth 41 from the corresponding gear slot 11, and at this time the seat 2 can drive the shift member 4 to slide back and forth relative to the gear member 1; when the shift member 4 slides to another gear slot 11 driven by the seat 2, the external force on the force-applying member is removed, so that the flexible transmission member is relaxed, and at this time the shift member 4 extends elastically again, so that the gear tooth 41 is inserted into another corresponding gear slot 11, thereby switching the mechanism back to the locking state.

[0045] Further, if Figure 1-2 As shown, the force-applying member is a rotating wrench 9 rotatably connected to the seat 2; the rotating wrench 9 can easily tighten or loosen the flexible connection member by rotating itself, which is convenient to operate. Compared with a directly pulled pull rod, the rotating wrench 9 is more labor-saving to operate.

[0046] Further, if Figure 5 As shown, the flexible transmission part is a flexible pull wire 5 connected between the shifting part 4 and the rotating wrench 9; the flexible pull wire 5 is a prior art, for example, a pull wire of a bicycle brake, which is composed of an outer sleeve and a steel wire inside the outer sleeve, and the steel wire is connected to the pulled object; the shifting part 4 is provided with a mounting port 43 connected to the flexible pull wire 5, the flexible pull wire 5 is simple and durable, occupies a small space, and is easy to install; even if other components in the seat 2 interfere with the flexible pull wire 5 during layout, the flexible pull wire 5 can avoid the corresponding parts by bending itself, so that the parts can be installed normally.

[0047] Further, if Figure 2 As shown, the sliding positioning assembly includes a mounting seat 3 connected to the seat 2, the mounting seat 3 is a hollow box body with a single-sided opening, the hanging member 4 is arranged in the mounting seat 3, the mounting seat 3 and the seat 2 can be a split structure and connected with screws, but in order to improve the assembly efficiency, the mounting seat 3 is an open mold part integrally formed with the seat 2; the connection and installation process of the mounting seat 3 and the seat 2 is omitted, thereby improving the installation efficiency of the seat 2.

[0048] Furthermore, a block 31 extending toward the gear slot 11 is provided in the mounting seat 3, and a sliding guide groove 42 is provided on the gear hanging member 4, the position of which corresponds to the block 31, and the block 31 is located in the sliding guide groove 42; the sliding guide groove 42 plays a guiding role, allowing the gear hanging member 4 to elastically extend and retract along a predetermined path, thereby preventing the gear hanging member 4 from deviating to other paths during elastic extension and retraction.

[0049] Furthermore, a compression spring 7 that can be elastically deformed in the direction toward the gear slot 11 is provided in the sliding guide groove 42, and the two ends of the compression spring 7 are respectively abutted against the inner wall of the sliding guide groove 42 and the block 31, so that the gear engaging member 4 can be elastically extended and retracted in the direction toward the gear slot 11.

[0050] A seat is provided, such as Figure 1 , Figure 8 As shown, it includes a seat sliding mechanism, a seat 2, and a base 6 connected to the lower end of the seat 2, and the seat sliding mechanism is arranged inside the seat 2; the gear member 4 is connected to the seat 2, and the seat 2 is provided with an avoidance slide groove 22 that penetrates downward and extends front and back, and the gear member 1 and the base 6 are connected by a screw (not shown) passed through the avoidance slide groove 22. Specifically, the screw passes through the avoidance slide groove 22 and is screwed into the screw hole 13 on the gear member 1 to connect the gear member 1 and the base 6; the avoidance slide groove 22 provides a connection space for the gear member 1 and the base 6, and also provides a sliding space for the seat 2, so that the seat 2 retains the front and back sliding function, and the gear member 1 is also hidden in the seat 2, further optimizing the spatial layout outside the seat 2, so that the aesthetics of the outer end of the seat is improved.

[0051] Furthermore, in order to prevent the flexible pull wire 5 from bending when being tightened or relaxed, a guide buckle 61 is provided in the seat 2, and the guide buckle 61 is arranged on the upper end surface of the base 6. The flexible pull wire 5 is passed through the guide buckle 61 along its own length direction; the flexible pull wire 5 moves along its own length when being tightened or relaxed, thereby preventing the flexible pull wire 5 from interfering with or being entangled with other components in the seat 2 due to excessive bending of the flexible pull wire 5.

[0052] Further, if Figure 5As shown, in order to make the forward and backward sliding of the seat 2 more uniform and stable, a tension spring 8 in a stretched state is connected between the front end or the rear end of the shift member 1 and the seat 2; the tension spring 8 can produce elastic deformation along the forward and backward direction when the seat 2 slides forward and backward; the seat 2 will be subjected to the elastic tension of the tension spring 8 when it slides forward and backward, and the elastic tension can ensure that the sliding speed of the seat 2 is relatively stable, making the sliding process of the seat 2 more stable and uniform.

[0053] Furthermore, the tension spring 8 can be connected to the front end or rear end of the seat 2; for example, the tension spring 8 is connected to the front end of the seat 2, and when the seat 2 slides backward under the action of an external force, the tension spring 2 continues to produce tensile deformation and generates an elastic tension on the seat 2; when the seat 2 slides forward under the action of an external force, the tension spring 2 can generate an auxiliary elastic tension for the seat 2 to reset, making it easier for the seat 2 to slide forward.

[0054] Further, if Figure 5 , Figure 7 As shown, a receiving groove 21 is provided on the seat 2, and an avoidance slide groove 22 is arranged on the bottom wall of the receiving groove 21; the receiving grooves 21 are symmetrically arranged on the seat 2; the shift member 1 is in one of the receiving grooves 21; a notch facing the shift member 4 is provided on the side wall of the receiving groove 21 where the shift member 1 is installed, and the shift member 4 can be matched with or separated from the shift groove 11 through the notch; a connecting member 10 is provided in the other receiving groove 21, and a tension spring 8 is also connected to the front or rear end of the connecting member 10. Compared with the shift member 1, the connecting member 10 has exactly the same length and shape, but the connecting member 10 does not have the shift groove 11, and only serves to connect with the base 1; the connecting member 10 and the shift member 1 are arranged at the left and right ends of the seat 2, and are connected to the base 6 by screws, so that the left and right ends of the seat 2 can slide back and forth synchronously.

[0055] 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 seat adjustment mechanism, characterized in that: include: A shift member (1), wherein a plurality of shift slots (11) are evenly distributed frontally and rearwardly on the shift member (1); The sliding positioning assembly comprises a gear hanging member (4) which can slide synchronously with the seat (2) forward and backward, and the gear hanging member (4) is provided with at least one gear tooth (41) facing the gear slot (11); the gear hanging member (4) can elastically extend and retract in a direction approaching or moving away from the gear slot (11), and drive the gear tooth (41) to engage in or disengage from the gear slot (11); A flexible connection assembly comprises a force-applying member arranged at the outer end of the seat (2), wherein a flexible transmission member located in the seat (2) is connected between the force-applying member and the gear-hanging member (4); The mechanism has a sliding state and a locking state. When the mechanism is in the locking state, the gear hanging member (4) elastically extends and causes the gear teeth (41) to be inserted into one of the gear slots (11), thereby ensuring that the seat (2) is fixed relative to the gear member (1); when the mechanism is switched to the sliding state, the force applying member can tighten the flexible transmission member under the action of an external force, causing the gear hanging member (4) to elastically retract, thereby causing the gear teeth (41) to be disengaged from the corresponding gear slot (11), at which time the seat (2) can drive the gear hanging member (4) to slide forward and backward relative to the gear member (1); when the gear hanging member (4) slides to another gear slot (11) driven by the seat (2), the external force on the force applying member is removed, causing the flexible transmission member to relax, at which time the gear hanging member (4) elastically extends again, causing the gear teeth (41) to be inserted into another corresponding gear slot (11), thereby switching the mechanism back to the locking state.

2. A seat adjustment mechanism according to claim 1, characterized in that: The force applying member is a rotating wrench (9) rotatably connected to the seat (2).

3. A seat adjustment mechanism according to claim 2, characterized in that: The flexible transmission member is a flexible pull wire (5) connected between the gear engaging member (4) and the rotating wrench (9).

4. A seat adjustment mechanism according to claim 3, characterized in that: It also includes a guide buckle (61) disposed inside the seat (2), and the flexible pull wire (5) is passed through the guide buckle (61) along its length direction.

5. The seat adjustment mechanism according to claim 1, characterized in that: The sliding positioning assembly comprises a mounting seat (3) connected to the seat (2); the mounting seat (3) is a hollow box body with a single-side opening; and the gear hanging member (4) is arranged in the mounting seat (3).

6. A seat adjustment mechanism according to claim 5, characterized in that: A clamping block (31) extending toward the gear slot (11) is provided in the mounting seat (3), and a sliding guide groove (42) corresponding in position to the clamping block (31) is provided on the gear hanging member (4), and the clamping block (31) is located in the sliding guide groove (42).

7. A seat adjustment mechanism according to claim 6, characterized in that: A compression spring (7) that can be elastically deformed in a direction toward the gear slot (11) is provided in the sliding guide slot (42), and two ends of the compression spring (7) are respectively abutted against the inner wall of the sliding guide slot (42) and the clamping block (31), so that the gear engaging member (4) can be elastically retracted in a direction toward the gear slot (11).

8. The seat adjustment mechanism according to claim 5, characterized in that: The mounting seat (3) is an open molded part formed integrally with the seat (2).

9. A seat, characterized in that: The invention comprises a seat adjustment mechanism as claimed in claim 1, a seat (2), and a base (6) connected to the lower end of the seat (2), wherein the seat adjustment mechanism is arranged inside the seat (2); a shift member (4) is connected to the seat (2), and the seat (2) is provided with an avoidance slide groove (22) which passes through downward and extends frontward and rearward, and the shift member (1) and the base (6) are connected by screws passing through the avoidance slide groove (22).

10. A seat according to claim 9, characterized in that: A tension spring (8) in a stretched state is connected between the front end or the rear end of the shifting member (1) and the seat (2); the tension spring (8) can generate elastic deformation in the front-to-back direction when the seat (2) slides back and forth.

Images