Seat backrest framework adjusting assembly

Abstract

The utility model discloses a seat backrest framework adjusting assembly, and relates to the technical field of seat frameworks. The device comprises a base, an adjusting mechanism and a reset mechanism are arranged on the base, the adjusting mechanism comprises a rotating shaft rotationally connected to the inner wall of the base, a first support is fixedly connected to the front side of the base, a first limiting block is fixedly connected to the outer wall of the rotating shaft, and the reset mechanism comprises a second connecting block fixedly connected to the inner wall of the base. A second limiting block is fixedly connected to the front side of the rotating shaft, a spring is fixedly connected to the front side of the base, and a first sliding block is slidably connected to the inner wall of the second limiting block. Through the arrangement of the adjusting mechanism, the problems that in the using process of an existing seat backrest framework adjusting assembly, the angle of a seat backrest is inconvenient to adjust, operation is complex, adjustment is difficult to conduct according to the specific conditions of a user, the user feels uncomfortable due to the improper angle, and the use is inconvenient are solved. And the use experience of the user is reduced.

Description

Technical Field

[0001] This utility model belongs to the field of seat frame technology, and in particular relates to a seat back frame adjustment component. Background Technology

[0002] The seat backrest frame adjustment component is a key part for flexibly adjusting the seat backrest angle. It mainly consists of an adjustment handle, a gear set, and a locking mechanism. During adjustment, simply move the adjustment handle, which drives the gear set to change the angle of the backrest frame. The locking mechanism can firmly lock the angle after the adjustment is in place, preventing the backrest from shaking. This component is easy to operate and can easily meet the diverse needs of users for backrest angle in different scenarios such as resting and working, bringing people a more comfortable and personalized seating experience. It is widely used in various seating products such as car seats and office chairs.

[0003] However, the existing seat backrest frame adjustment components are not convenient for adjusting the angle of the seat back during use. The operation is relatively complicated and it is difficult to adjust according to the user's specific situation. An unsuitable angle will make the user feel uncomfortable and reduce the user experience. Utility Model Content

[0004] The purpose of this utility model is to provide a seat back frame adjustment component. By setting an adjustment mechanism, it solves the problems of existing seat back frame adjustment components, such as inconvenience in adjusting the angle of the seat back during use, complicated operation, difficulty in adjusting according to the user's specific situation, and unsuitable angles causing user discomfort and reducing the user experience.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0006] This utility model is a seat back frame adjustment component, including a base, on which an adjustment mechanism and a reset mechanism are provided;

[0007] The adjustment mechanism includes a rotating shaft rotatably connected to the inner wall of the base, a bracket fixedly connected to the front side of the base, a limit block fixedly connected to the outer wall of the rotating shaft, and a resetting mechanism including a connecting block fixedly connected to the inner wall of the base.

[0008] Furthermore, a limiting block two is fixedly connected to the front side of the rotating shaft, a spring is fixedly connected to the front side of the base, a slider one is slidably connected to the inner wall of the limiting block two, and the front side of the spring is fixedly connected to the slider one.

[0009] Furthermore, a number of locking blocks are fixedly connected to the front side of the slider one, a connecting block one is fixedly connected to the front side of the rotating shaft, the front side of the connecting block one penetrates the bracket one, and a number of locking blocks two are fixedly connected to the outer wall of the connecting block one. The number of locking blocks one and the number of locking blocks two are adapted to each other, wherein the number of locking blocks one and locking blocks two is the same, and they are staggered and spliced ​​together.

[0010] Furthermore, a sliding groove is provided on the front side of the connecting block one, a pressing block is slidably connected to the outer wall of the connecting block one, a slider two is slidably connected to the inner wall of the sliding groove one, and the front side of the slider two is fixedly connected to the pressing block.

[0011] Furthermore, two spring sheets are fixedly connected to the inner wall of the second connecting block, and a rotating block is rotatably connected to the outer wall of the rotating shaft. Two connecting blocks are fixedly connected to the inner wall of the first rotating block. The spring sheets are made of fiberglass, which has high strength and good elasticity, and is very suitable for the field of ergonomic chairs.

[0012] Furthermore, each of the two connecting blocks three is fixedly connected to a limiting shaft on the side that is far apart from each other. The outer walls of the two limiting shafts are in contact with two spring pieces respectively. The outer wall of the rotating shaft is rotatably connected to a rotating block two, and the inner wall of the rotating block two is slidably connected to a pin.

[0013] Furthermore, a limiting groove is provided on the front side of the limiting block one, the insert is adapted to the limiting groove, a sliding groove two is provided in the rotating block two, and a limiting block three is fixedly connected to the outer wall of the insert, wherein the limiting block three and the limiting groove can prevent the insert from detaching from the rotating block two.

[0014] This utility model has the following beneficial effects:

[0015] 1. By setting an adjustment mechanism, when the angle needs to be adjusted, the pressing block can be pressed to squeeze the slider one, thereby applying pressure to the spring, causing it to undergo elastic deformation and generate elastic force. At this time, the locking block one will move away from the locking block two, thereby releasing the restriction of the connecting block one. Then the pressing block can be rotated, and under the action of the slider two, it will drive the rotating shaft to rotate, thereby driving the limiting block one to rotate, realizing the angle adjustment. Then the pressing block can be released, and under the action of the spring force, the locking block one and the locking block two will fit together and lock, so that the angle of the device can be adjusted through simple operation. At the same time, it can also avoid unnecessary rotation during use, ensuring the stability of the device and improving the user experience.

[0016] 2. By setting a reset mechanism, after adjustment, the user can lean against rotating block two and then lean back. At this time, rotating block two will squeeze rotating block one, and under the action of the rotating shaft, it will squeeze the spring piece through connecting block three and limiting shaft, causing it to bend and generate elastic force. When the user gets up, rotating block two will be reset under the action of this elastic force. When rotating block two is not needed to be reset, after rotating block two is rotated to fit with limiting block one, the pin can be pressed to insert it into the limiting groove, locking limiting block one and rotating block two together, thereby preventing rotating block two from resetting. This allows the seat back to automatically reset when the user temporarily leaves the seat, and when sitting down again, simply leaning back will rotate the seat back to the appropriate angle. Moreover, the user can control whether the seat back resets, thereby further improving the user experience.

[0017] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a partial cross-sectional view of the adjustment mechanism of this utility model;

[0021] Figure 3 This utility model Figure 2 A magnified structural diagram of A in the middle;

[0022] Figure 4 This is a partial cross-sectional view of the connecting block 1 of this utility model;

[0023] Figure 5 This is a partial cross-sectional view of the adjustment mechanism of this utility model;

[0024] Figure 6 This utility model Figure 5 A magnified structural diagram of B in the diagram;

[0025] Figure 7 This is a schematic diagram of the overall structure of the connecting block 2 of this utility model.

[0026] The attached diagram lists the components represented by each number as follows:

[0027] 1. Base; 2. Adjustment mechanism; 201. Rotating shaft; 202. Bracket 1; 203. Limiting block 1; 204. Limiting block 2; 205. Spring; 206. Slider 1; 207. Locking block 1; 208. Connecting block 1; 209. Locking block 2; 210. Slide groove 1; 211. Pressing block; 212. Slider 2; 3. Reset mechanism; 301. Connecting block 2; 302. Spring piece; 303. Rotating block 1; 304. Connecting block 3; 305. Limiting shaft; 306. Rotating block 2; 307. Pin; 308. Limiting groove; 309. Slide groove 2; 310. Limiting block 3. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] Please see Figure 1-7 As shown, this utility model is a seat back frame adjustment assembly, including a base 1. An adjustment mechanism 2 and a reset mechanism 3 are provided on the base 1. The adjustment mechanism 2 includes a rotating shaft 201 rotatably connected to the inner wall of the base 1. A bracket 202 is fixedly connected to the front side of the base 1. A limiting block 203 is fixedly connected to the outer wall of the rotating shaft 201. A limiting block 204 is fixedly connected to the front side of the rotating shaft 201. A spring 205 is fixedly connected to the front side of the base 1. A slider 206 is slidably connected to the inner wall of the limiting block 204. The front side of the spring 205 is fixedly connected to the slider 206. Several locking blocks 207 are fixedly connected to the front side of the slider 206. A connecting block 208 is fixedly connected to the front side of the rotating shaft 201. The front side of the connecting block 208 passes through the bracket 202. Several locking blocks are fixedly connected to the outer wall of the connecting block 208. The second 209 consists of several locking blocks 1 207 and several locking blocks 209 that are compatible with each other. The number of locking blocks 1 and 2 is the same, and they are staggered and assembled. The front side of the connecting block 1 208 has a sliding groove 210. The outer wall of the connecting block 1 208 is slidably connected to a pressing block 211. The inner wall of the sliding groove 210 is slidably connected to a slider 212. The front side of the slider 212 is fixedly connected to the pressing block 211. The locking blocks 209 and the locking blocks 1 207 will move away from each other during adjustment, and will stagger and merge after adjustment, thereby preventing the rotating shaft 201 from rotating on its own. By setting the adjustment mechanism 2, the angle of the device can be adjusted by simple operation, and unnecessary rotation during use can be avoided, ensuring the stability of the device and improving the user experience.

[0030] The reset mechanism 3 includes a second connecting block 301 fixedly connected to the inner wall of the base 1. Two spring pieces 302 are fixedly connected to the inner wall of the second connecting block 301. A first rotating block 303 is rotatably connected to the outer wall of the rotating shaft 201. Two third connecting blocks 304 are fixedly connected to the inner wall of the first rotating block 303. The spring pieces 302 are made of fiberglass, which has high strength and good elasticity, making it very suitable for ergonomic seating. Limiting shafts 305 are fixedly connected to the opposite sides of the two third connecting blocks 304. The outer walls of the two limiting shafts 305 contact the two spring pieces 302 respectively. A second rotating block 306 is rotatably connected to the outer wall of the rotating shaft 201. A pin 307 is slidably connected to the inner wall of the second rotating block 306. A limiting groove 308 is formed on the front side of the first limiting block 203. The pin 307 and the limiting... The groove 308 is adapted to the rotating block 2 306, and the sliding groove 2 309 is opened in the rotating block 2. The outer wall of the insert pin 307 is fixedly connected to the limiting block 310. The limiting block 3 and the limiting groove can prevent the insert pin from disengaging from the rotating block 2. The rotation points of the limiting block 1 203 and the rotating block 2 306 are both on the rotating shaft 201. Therefore, no matter how they rotate, the final state when the limiting block 1 203 and the rotating block 2 306 are in contact is the same, thus ensuring that the limiting groove 308 and the insert pin 307 can always cooperate. By setting the reset mechanism 3, the seat back can be automatically reset when the user temporarily leaves the seat. When sitting down again, the user only needs to lean back to rotate the seat back to the appropriate angle. Moreover, the user can control whether the seat back is reset, thereby further improving the user experience.

[0031] A specific application of this embodiment is as follows: When the angle needs to be adjusted, the pressing block 211 can be pressed down to compress the slider 206, thereby applying pressure to the spring 205, causing it to elastically deform and generate elastic force. At this time, the locking block 207 will move away from the locking block 209, thus releasing the restriction of the connecting block 208. Then, the pressing block 211 can be rotated, and under the action of the slider 212, the rotating shaft 201 will rotate, thereby driving the limiting block 203 to rotate, achieving angle adjustment. Then, the pressing block 211 can be released, and under the action of the spring 205, the locking blocks 207 and 209 will fit together and lock in place. After adjustment, the angle is adjusted... The user can lean against the rotating block 2 306 and then lean back. At this time, the rotating block 2 306 will press against the rotating block 1 303. Under the action of the rotating shaft 201, the spring piece 302 will be pressed through the connecting block 304 and the limiting shaft 305, causing it to bend and generate elasticity. When the user gets up, the rotating block 2 306 will be reset under the action of this elasticity. When the rotating block 2 306 does not need to be reset, after the rotating block 2 306 is rotated to fit against the limiting block 1 203, the insert pin 307 can be pressed to insert it into the limiting groove 308, locking the limiting block 1 203 and the rotating block 2 306 together, thereby preventing the rotating block 2 306 from being reset.

[0032] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0033] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A seat back frame adjustment assembly, characterized in that: Includes a base (1), on which an adjustment mechanism (2) and a reset mechanism (3) are provided; The adjustment mechanism (2) includes a rotating shaft (201) rotatably connected to the inner wall of the base (1), a bracket (202) is fixedly connected to the front side of the base (1), a limit block (203) is fixedly connected to the outer wall of the rotating shaft (201), and the reset mechanism (3) includes a connecting block (301) fixedly connected to the inner wall of the base (1).

2. The seat back frame adjustment assembly according to claim 1, characterized in that, The front side of the rotating shaft (201) is fixedly connected to the second limiting block (204), the front side of the base (1) is fixedly connected to the spring (205), the inner wall of the second limiting block (204) is slidably connected to the first slider (206), and the front side of the spring (205) is fixedly connected to the first slider (206).

3. The seat back frame adjustment assembly according to claim 2, characterized in that, The front side of the slider (206) is fixedly connected to several locking blocks (207), the front side of the rotating shaft (201) is fixedly connected to a connecting block (208), the front side of the connecting block (208) passes through the bracket (202), and the outer wall of the connecting block (208) is fixedly connected to several locking blocks (209). Several locking blocks (207) and several locking blocks (209) are adapted to each other.

4. The seat back frame adjustment assembly according to claim 3, characterized in that, The front side of the connecting block 1 (208) is provided with a sliding groove 1 (210), the outer wall of the connecting block 1 (208) is slidably connected with a pressing block (211), the inner wall of the sliding groove 1 (210) is slidably connected with a slider 2 (212), and the front side of the slider 2 (212) is fixedly connected to the pressing block (211).

5. A seat back frame adjustment assembly according to claim 4, characterized in that, The inner wall of the connecting block 2 (301) is fixedly connected to two spring pieces (302), the outer wall of the rotating shaft (201) is rotatably connected to a rotating block 1 (303), and the inner wall of the rotating block 1 (303) is fixedly connected to two connecting blocks 3 (304).

6. A seat back frame adjustment assembly according to claim 5, characterized in that, The two connecting blocks three (304) are fixedly connected to the side away from each other by a limiting shaft (305). The outer walls of the two limiting shafts (305) are in contact with the two spring pieces (302) respectively. The outer wall of the rotating shaft (201) is rotatably connected to a rotating block two (306). The inner wall of the rotating block two (306) is slidably connected to a pin (307).

7. A seat back frame adjustment assembly according to claim 6, characterized in that, The front side of the limiting block one (203) has a limiting groove (308), the pin (307) is adapted to the limiting groove (308), the rotating block two (306) has a sliding groove two (309), and the outer wall of the pin (307) is fixedly connected to the limiting block three (310).

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