Seat framework fastener

Abstract

The utility model provides a seat framework fastener, and relates to the technical field of fasteners, the seat framework fastener comprises a bolt rod part and a nut main body in threaded connection with the outer surface of the bolt rod part, one side of the bolt rod part is provided with a limiting groove, and a limiting piece is arranged between the limiting groove and the nut main body; the limiting piece is matched with the limiting groove to achieve limiting of the bolt rod part and the nut body. The limiting groove is formed in the bolt rod part, the limiting piece is arranged between the limiting groove and the nut body, and the limiting piece and the limiting groove are matched to achieve limiting of the bolt rod part and the nut body, so that a locking mechanism is formed, and even if a vehicle encounters strong vibration and impact in the running process, the bolt rod part and the nut body cannot be locked. And relative rotation between the nut main body and the bolt rod part can be effectively prevented, so that the loosening risk is obviously reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of fasteners, and more specifically, to a seat frame fastener. Background Art

[0002] In the rapid development of the automotive industry, the seat, as an important part of the vehicle interior, not only bears the basic function of supporting the passenger's weight, but also is directly related to the passenger's riding comfort and safety. As the core structure of the seat system, the stability of the seat frame directly affects the performance of the entire seat and even the whole vehicle. However, in the complex and changeable driving environment, such as the continuous vibration on the highway, the strong impact on rough mountain roads, and the thermal expansion and contraction of materials caused by temperature changes, etc., all pose severe challenges to the connectors of the seat frame;

[0003] Traditional seat frame fasteners, such as the combination of ordinary bolts and nuts, although simple in structure and easy to operate, often have difficulty maintaining their fastening performance when facing long-term and continuous external forces. Especially in the case of no additional anti-loosening measures, the threaded connection between the nut and the bolt is likely to gradually loosen due to vibration, resulting in a decrease in the stability of the seat, and thus may cause abnormal noises, seat position deviation, and even safety hazards. Therefore, we make improvements on this and propose a seat frame fastener. Summary of the Invention

[0004] The purpose of the utility model is to address the existing problem that the threaded connection between the nut and the bolt is likely to gradually loosen due to vibration, resulting in a decrease in the stability of the seat.

[0005] In order to achieve the above-mentioned invention purpose, the utility model provides a seat frame fastener to improve the above problems.

[0006] Specifically, this application is as follows:

[0007] A seat frame fastener includes a bolt rod portion and a nut body threadedly connected to the outer surface of the bolt rod portion. A limiting groove is provided on one side of the bolt rod portion, and a limiting member is arranged between the limiting groove and the nut body. The limiting member cooperates with the limiting groove to realize the limitation of the bolt rod portion and the nut body.

[0008] As a preferred technical solution of this application, the limiting member includes a receiving groove opened on the nut body, and a first limiting plate is inserted into the receiving groove. One end of the first limiting plate is inserted into the limiting groove.

[0009] As a preferred technical solution of this application, a rotating shaft is fixedly connected to the end of the first limiting plate away from the limiting groove. The rotating shaft is connected to a second limiting plate through a bearing, and the end of the second limiting plate away from the first limiting plate passes through the receiving groove.

[0010] As a preferred technical solution of the present application, an inner groove is provided on one side of the accommodation groove, a support rod is fixedly installed in the inner groove, a connecting plate is sleeved on the outer surface of the support rod, and one end of the connecting plate is fixedly connected to the first limiting plate.

[0011] As a preferred technical solution of the present application, a spring is sleeved on the outer surface of the support rod, and both ends of the spring are fixedly connected to the connecting plate and the inner groove respectively.

[0012] As a preferred technical solution of the present application, a clamping groove is provided on one side of the nut body close to the second limiting plate, and the clamping groove is vertically arranged with respect to the accommodation groove.

[0013] As a preferred technical solution of the present application, a positioning groove is provided on one side of the nut body, and the positioning groove is used to indicate the position of the limiting groove.

[0014] As a preferred technical solution of the present application, a second retaining piece is fixedly connected to the side of the nut body far from the positioning groove.

[0015] As a preferred technical solution of the present application, a first retaining piece is fixedly connected to one end of the bolt rod part, a bolt head is fixedly connected to the side of the first retaining piece far from the bolt rod part, and an internal hexagonal groove is provided on the first retaining piece.

[0016] As a preferred technical solution of the present application, a plurality of convex ribs are fixedly connected to the mutually approaching surfaces of the first retaining piece and the second retaining piece.

[0017] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0018] In the solution of the present application:

[0019] In order to solve the problem in the prior art that the threaded connection between the nut and the bolt is prone to gradually loosen due to vibration, resulting in a decrease in the stability of the seat, in the present application, a limiting groove is provided on the bolt rod part, a limiting member is arranged between the limiting groove and the nut body, and the limiting member cooperates with the limiting groove to realize the limitation of the bolt rod part and the nut body, forming a locking mechanism. Even when the vehicle encounters strong vibration and impact during driving, the relative rotation between the nut body and the bolt rod part can be effectively prevented, thereby significantly reducing the risk of loosening. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic structural diagram of the seat frame fastener provided by the present application;

[0021] Figure 2 It is a schematic structural diagram of the internal hexagonal groove of the seat frame fastener provided by the present application;

[0022] Figure 3Schematic structural diagram of the first limiting plate and the second limiting plate of the seat frame fastener provided by the present application;

[0023] Figure 4 Cross-sectional structural diagram of the nut body of the seat frame fastener provided by the present application.

[0024] Labels in the figure:

[0025] 1. Bolt rod part; 101. First retaining piece; 102. Bolt head; 103. Hexagonal socket.

[0026] 2. Nut body; 201. Second retaining piece;

[0027] 3. Limiting groove;

[0028] 4. First limiting plate; 401. Second limiting plate; 402. Inner groove; 403. Support rod; 404. Connecting plate; 405. Spring; 406. Card slot; 407. Positioning groove;

[0029] 5. Convex rib. Detailed implementation manners

[0030] In order to enable those skilled in the art to better understand the solution of the present utility model, the technical solutions in the embodiments of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0031] As recorded in the background art, traditional seat frame fasteners, such as the combination of ordinary bolts and nuts, although simple in structure and easy to operate, often have difficulty maintaining their fastening performance when facing long-term and continuous external forces. Especially in the case of no additional anti-loosening measures, the threaded connection between the nut and the bolt is likely to gradually loosen due to vibration, resulting in a decrease in the stability of the seat, and further possibly causing abnormal noises, seat position deviation, and even safety hazards.

[0032] To solve this technical problem, the present utility model provides a seat frame fastener.

[0033] Specifically, please refer to Figures 1 - 4 , the seat frame fastener specifically includes:

[0034] A bolt rod part 1 and a nut body 2 threadedly connected to the outer surface of the bolt rod part 1. A limiting groove 3 is provided on one side of the bolt rod part 1, and a limiting member is provided between the limiting groove 3 and the nut body 2. The limiting member cooperates with the limiting groove 3 to realize the limitation of the bolt rod part 1 and the nut body 2.

[0035] The seat frame fastener provided by the present utility model. In this application, a limiting groove 3 is opened on the bolt rod portion 1, and a limiting member is arranged between the limiting groove 3 and the nut body 2. The limiting member cooperates with the limiting groove 3 to limit the bolt rod portion 1 and the nut body 2, forming a locking mechanism. Even when the vehicle encounters strong vibrations and impacts during driving, it can effectively prevent the relative rotation between the nut body 2 and the bolt rod portion 1, thereby significantly reducing the risk of loosening.

[0036] In order to enable those skilled in the art to better understand the solution of the present utility model, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings.

[0037] It should be noted that, without conflict, the embodiments in the present utility model and the features and technical solutions in the embodiments can be combined with each other.

[0038] It should be noted that similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0039] Embodiment 1. Please refer to Figures 1 - 4 , a seat frame fastener, including a bolt rod portion 1 and a nut body 2 threadedly connected to the outer surface of the bolt rod portion 1. A limiting groove 3 is opened on one side of the bolt rod portion 1, and a limiting member is arranged between the limiting groove 3 and the nut body 2. The limiting member cooperates with the limiting groove 3 to limit the bolt rod portion 1 and the nut body 2, forming a locking mechanism. Even when the vehicle encounters strong vibrations and impacts during driving, it can effectively prevent the relative rotation between the nut body 2 and the bolt rod portion 1, thereby significantly reducing the risk of loosening.

[0040] Furthermore, as Figures 1 - 4 shown, the limiting member includes a receiving groove opened on the nut body 2, and a first limiting plate 4 is inserted into the receiving groove. One end of the first limiting plate 4 is inserted into the limiting groove 3. Through the insertion of the first limiting plate 4 into the limiting groove 3, the connection between the nut body 2 and the bolt rod portion 1 can be limited, avoiding the rotation between the nut body 2 and the bolt rod portion 1. Through the insertion method of the first limiting plate 4 into the limiting groove 3, a direct, efficient and precise limiting strategy is realized. This direct insertion structure can establish a clear and stable connection limit between the nut body 2 and the bolt rod portion 1, minimizing the possible relative rotation between the two. In practical applications, even when facing frequent and strong external forces, such as the bumps and sudden brakes during vehicle driving, this precise insertion limit can ensure that the connection between the nut body 2 and the bolt rod portion 1 always remains stable, thereby greatly enhancing the reliability and durability of the seat frame fastener.

[0041] Furthermore, as Figure 3 and Figure 4 shown, a rotating shaft is fixedly connected to one end of the first limiting plate 4 away from the limiting groove 3. The rotating shaft is connected to a second limiting plate 401 through a bearing. One end of the second limiting plate 401 away from the first limiting plate 4 passes through the accommodating groove, that is, the second limiting plate 401 can be pulled from the outside. By driving the first limiting plate 4 to move through the second limiting plate 401, the first limiting plate 4 is separated from the limiting groove 3 to release the limitation between the nut body 2 and the bolt rod portion 1. This separable design demonstrates extremely high flexibility and practicality. During daily maintenance, repair, or component replacement operations, it is often necessary to disassemble or adjust the seat frame. With this separable limiting structure, the operator can easily release the limitation between the nut body 2 and the bolt rod portion 1 by pulling the second limiting plate 401, thus facilitating subsequent operations quickly and conveniently. This not only improves work efficiency, reduces the complexity and difficulty of operations, but also reduces the risk of damage to the seat frame or fasteners caused by inconvenient disassembly.

[0042] Example 2 further optimizes the seat frame fastener provided in Example 1. Specifically, as Figure 4 shown, an inner groove 402 is opened on one side of the accommodating groove. A support rod 403 is fixedly installed in the inner groove 402. A connecting plate 404 is sleeved on the outer surface of the support rod 403. One end of the connecting plate 404 is fixedly connected to the first limiting plate 4. The cooperation between the connecting plate 404 and the support rod 403 can limit the first limiting plate 4. This additional auxiliary limiting structure provides strong guarantee for the position stability of the first limiting plate 4. During the long-term operation of the vehicle, the seat frame will continuously bear vibrations and impact forces from various directions. If only relying on the insertion of the first limiting plate 4 itself into the limiting groove 3, it may gradually shift in position under long-term frequent stress. The cooperation between the support rod 403, the connecting plate 404 and the first limiting plate 4 forms a stable support and limiting system, which can effectively resist the interference of various external forces, ensure that the first limiting plate 4 always stays in the correct position, thereby further enhancing the reliability of the connection between the nut body 2 and the bolt rod portion 1 and greatly extending the service life of the seat frame fastener.

[0043] Furthermore, as Figure 4As shown, a spring 405 is sleeved on the outer surface of the support rod 403. The two ends of the spring 405 are fixedly connected to the connecting plate 404 and the inner groove 402 respectively. The acting force of the spring 405 can limit the first limiting plate 4 through the connecting plate 404, so as to improve the stability of the insertion between the first limiting plate 4 and the limiting groove 3. The setting of the spring 405 plays a key role here. On the one hand, the spring 405 can continuously provide an inward elastic force for the first limiting plate 4, so that the first limiting plate 4 and the limiting groove 3 always maintain a tight insertion state, effectively avoiding the generation of gaps caused by vibration or external impact, thus ensuring the stability of the connection.

[0044] Furthermore, as Figure 1 shown, a clamping groove 406 is provided on one side of the nut body 2 close to the second limiting plate 401. The clamping groove 406 is perpendicular to the accommodating groove. After the second limiting plate 401 is pulled out from the accommodating groove, it is rotated and aligned with the clamping groove 406 and inserted into the clamping groove 406. At this time, the second limiting plate 401 can limit the first limiting plate 4 to prevent the first limiting plate 4 from being inserted back into the limiting groove 3. The design of the clamping groove 406 provides great convenience and safety for the whole operation process. When repairing or adjusting the seat frame, when the operator pulls out the second limiting plate 401 to release the limit on the nut body 2 and the bolt rod part 1, it is necessary to ensure that the second limiting plate 401 will not accidentally return to its original position, so as to interfere with the normal operation or cause unnecessary danger. The existence of the clamping groove 406 just solves this problem. By rotating and inserting the second limiting plate 401 into the clamping groove 406, its position can be stably fixed, so that the operator can rest assured to carry out the subsequent work without worrying about the accidental movement of the second limiting plate 401.

[0045] Furthermore, as Figure 1 shown, a positioning groove 407 is provided on one side of the nut body 2. The positioning groove 407 is used to indicate the position of the limiting groove 3, so as to facilitate the alignment of the limiting groove 3 and the first limiting plate 4 when the nut body 2 is screwed. The setting of the positioning groove 407 has significant advantages in the actual installation and adjustment process. In the absence of clear positioning instructions, when the operator screws the nut body 2, he needs to rely on experience and continuous attempts to align the limiting groove and the first limiting plate 4. This not only takes time and energy, but also is prone to inaccurate alignment, thus affecting the fastening effect and work efficiency. The existence of the positioning groove 407 provides a clear and intuitive visual guidance for the operator, enabling them to quickly and accurately align the limiting groove 3 and the first limiting plate 4, greatly shortening the installation and adjustment time, improving the accuracy and efficiency of the work, and at the same time reducing the risk of component damage or fastening failure caused by inaccurate alignment.

[0046] Embodiment 3 further optimizes the seat frame fastener provided in Embodiment 1 or 2. Specifically, as Figure 1 and Figure 2 shown, a second retaining piece 201 is fixedly connected to the side of the nut body 2 away from the positioning groove 407. The second retaining piece 201 is used to increase the contact area with the object to be fixed.

[0047] Furthermore, as Figure 1 and Figure 2 shown, one end of the bolt rod portion 1 is fixedly connected to a first retaining piece 101. A bolt head 102 is fixedly connected to the side of the first retaining piece 101 away from the bolt rod portion 1. And an internal hexagonal groove 103 is formed in the first retaining piece 101. In this application, the distance between the second retaining piece 201 and the first retaining piece 101 is customized according to the seat frame. This customized distance design has multiple important significances. First of all, it fully considers the unique structures and dimensional differences of different seat frames, achieving precise adaptation. This means that no matter what the specific specifications of the seat frame are, the most suitable fastening position can be found, ensuring a tight combination between the fastener and the seat frame, and maximizing the fastening effect and stability. Secondly, the customized distance can effectively avoid the stress concentration problem caused by improper spacing. If the spacing is too large, it may lead to insufficient fastening, causing the seat to shake during use; if the spacing is too small, it may cause excessive extrusion of the seat frame, affecting its structural strength. Through precise customization, the fastening force and the protection of the seat frame are effectively balanced. Moreover, this customization improves the convenience and efficiency of installation. Installers no longer need to repeatedly try and adjust to find the appropriate spacing, saving time and effort, and at the same time reducing the subsequent problems that may be caused by improper installation.

[0048] Furthermore, as Figure 1 and Figure 2 shown, a plurality of convex ridges 5 are fixedly connected to the mutually approaching surfaces of the first retaining piece 101 and the second retaining piece 201. The setting of the convex ridges 5 can increase the friction between the second retaining piece 201 and the first retaining piece 101 and the object to be fixed, so that when the seat is subjected to frequent vibrations and external impacts, the first retaining piece 101 and the second retaining piece 201 can contact the object to be fixed more firmly, greatly reducing the possibility of loosening, ensuring the long-term stability of the seat. Due to the increase in friction, the wear caused by micro-displacements is reduced, extending the service life of the seat frame and the fastener itself, and reducing the maintenance cost.

[0049] The use process of the seat frame fastener provided by the present utility model is as follows:

[0050] First, pull the second limiting plate 401 outward to separate the first limiting plate 4 from the limiting groove 3. After the second limiting plate 401 is pulled out of the accommodating groove, rotate the second limiting plate 401 around the rotating shaft so that the second limiting plate 401 aligns with the card slot 406. Release the second limiting plate 401 so that the second limiting plate 401 is inserted into the card slot 406. Then, rotate the nut body 2 to separate the nut body 2 from the bolt rod portion 1. Pass the bolt rod portion 1 through the object to be fixed and then screw the nut body 2 onto the bolt rod portion 1. After the nut body 2 is tightened, align the limiting groove 3 with the positioning groove 407. Then, pull the second limiting plate 401 to separate the second limiting plate 401 from the card slot 406. Rotate the second limiting plate 401 around the rotating shaft so that the second limiting plate 401 is parallel to the first limiting plate 4. Release the second limiting plate 401 so that the second limiting plate 401 is inserted into the accommodating groove, and the first limiting plate 4 is inserted into the limiting groove 3.

[0051] In the present utility model, unless otherwise clearly defined and limited, terms such as "installation", "connection", "connection", "fixation", etc. shall be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection, an electrical connection, or communication with each other; it can be directly connected, or indirectly connected through an intermediate medium, and can be the communication inside two components or the interaction relationship between two components, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0052] Obviously, the above-described embodiments are only part of the embodiments of the present utility model, rather than all embodiments. The drawings show the preferred embodiments of the present utility model, but do not limit the patent scope of the present utility model. The present utility model can be implemented in many different forms. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosed content of the present utility model more thorough and comprehensive. Although the present utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing specific embodiments, or perform equivalent replacements for some of the technical features. Any equivalent structures directly or indirectly using the content of the specification and drawings of the present utility model in other related technical fields are equally within the scope of the patent protection of the present utility model.

Claims

1. A seat frame fastener, characterized in that: It comprises a bolt shank (1) and a nut body (2) threadedly connected to the outer surface of the bolt shank (1), a limiting groove (3) being provided on one side of the bolt shank (1), a limiting member being arranged between the limiting groove (3) and the nut body (2), the limiting member cooperating with the limiting groove (3) to achieve limiting of the bolt shank (1) and the nut body (2); The limiting member comprises a receiving groove formed on the nut body (2), a first limiting plate (4) being inserted into the receiving groove, and one end of the first limiting plate (4) being inserted into the limiting groove (3); One end of the first limiting plate (4) away from the limiting groove (3) is fixedly connected to a rotating shaft, the rotating shaft is connected to a second limiting plate (401) via a bearing, and one end of the second limiting plate (401) away from the first limiting plate (4) passes through the accommodating groove; An inner groove (402) is provided on one side of the accommodating groove, a support rod (403) is fixedly installed in the inner groove (402), a connecting plate (404) is sleeved on the outer surface of the support rod (403), and one end of the connecting plate (404) is fixedly connected to the first limiting plate (4); A spring (405) is sleeved on the outer surface of the support rod (403), and two ends of the spring (405) are respectively fixedly connected to the connecting plate (404) and the inner groove (402).

2. A seat frame fastener according to claim 1, characterized in that: A clamping groove (406) is provided on one side of the nut body (2) close to the second limiting plate (401), and the clamping groove (406) is vertically arranged with the accommodating groove.

3. A seat frame fastener according to claim 2, characterized in that: A positioning groove (407) is provided on one side of the nut body (2), and the positioning groove (407) is used to indicate the position of the limiting groove (3).

4. A seat frame fastener according to claim 3, characterized in that: A second blocking piece (201) is fixedly connected to a side of the nut body (2) away from the positioning groove (407).

5. A seat frame fastener according to claim 4, characterized in that: One end of the bolt shank (1) is fixedly connected to a first baffle (101), a side of the first baffle (101) away from the bolt shank (1) is fixedly connected to a bolt head (102), and a hexagonal socket (103) is provided on the first baffle (101).

6. A seat frame fastener according to claim 5, characterized in that: A plurality of ridges (5) are fixedly connected to the mutually adjacent surfaces of the first baffle (101) and the second baffle (201).

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