Worm gear with self-locking structure for automobile seat horizontal regulator

Abstract

The utility model belongs to the technical field of automobile seat adjustment, and discloses a worm gear with a self-locking structure for an automobile seat horizontal adjuster, which comprises a shell with an opening at the top end, a top cover matched with the opening is arranged at the top end of the shell, a worm is rotatably connected in the shell, the surface of the worm is meshed with the worm gear, and the worm gear is connected with the shell. The worm gear is rotationally connected to the interior of the shell, and a locking assembly is arranged in the top cover; after the seat is adjusted in place, the first locking piece and the second locking piece are always kept in an engaged state by means of the compression force of the spring, automatic locking can be achieved without additional operation, displacement of the seat due to external force is prevented, and the safety and comfort of a driver and passengers are greatly improved; not only is the installation of the device convenient, but also the accuracy and the stability of the installation are improved.

Description

Technical Field

[0001] This utility model belongs to the field of automotive seat adjustment technology, specifically a worm gear with a self-locking structure for an automotive seat level adjuster. Background Technology

[0002] In automotive seat adjustment systems, the seat leveling mechanism is a key component for adjusting the seat's fore-and-aft position. Existing seat leveling mechanisms mostly use a worm gear transmission structure to achieve horizontal movement of the seat. However, traditional worm gear transmissions lack a reliable self-locking function after the seat is adjusted to the correct position. During vehicle operation, due to road bumps, rapid acceleration, or sudden braking, the seat may shift, affecting not only the comfort of the driver and passengers but also posing certain safety hazards.

[0003] Therefore, a worm gear with a self-locking structure for an automotive seat leveling adjuster is proposed to address the above problems. Utility Model Content

[0004] To address the problems mentioned in the background section, this invention provides a worm gear with a self-locking structure for an automotive seat leveling adjuster. This worm gear can reliably self-lock after the seat is adjusted to the correct position, preventing the seat from shifting during vehicle operation and improving the comfort and safety of passengers.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a worm gear with a self-locking structure for an automotive seat level adjuster, comprising a housing with a top opening, a top cover matching the opening at the top of the housing, a worm gear rotatably connected inside the housing, a worm wheel meshing with the surface of the worm gear, and the worm wheel rotatably connected inside the housing, and a locking component provided inside the top cover;

[0006] The locking assembly includes a rotating rod disposed between the top cover and the housing. The top end of the rotating rod penetrates the surface of the top cover and extends to the upper side of the top cover. A connecting post is fixedly connected to the bottom end of the rotating rod. A connecting groove adapted to the connecting post is formed on the surface of the worm gear. A first locking member is fixedly connected to the side of the rotating rod. A second locking member matching the first locking member is fixedly fixed inside the top cover. A fixing plate is fixedly connected to the top end of the worm gear. A spring is fixedly connected between the first locking member and the fixing plate, and the spring is in a compressed state.

[0007] Preferably, both the second locking member and the first locking member are annular side toothed discs, and the teeth on the two sets of side toothed discs are correspondingly arranged on their adjacent sides.

[0008] Preferably, the top cover has an insertion groove on the side near the first locking member for vertical sliding and rotation of the first locking member.

[0009] Preferably, a square hole is provided at the top end of the rotating rod.

[0010] Preferably, mounting grooves are provided at the four corners of the surfaces of the housing and the top cover.

[0011] Preferably, the bottom surface of the top cover is integrally provided with a cylindrical protrusion on the side near the mounting groove, and the surface of the housing is provided with a groove that matches the protrusion.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] 1. This utility model uses a locking component to keep the first and second locking parts engaged by the compression force of the spring after the seat is adjusted to the correct position. It can automatically lock without additional operation, preventing the seat from shifting due to external forces, which greatly improves the safety and comfort of the driver and passengers. The mounting groove and the protrusion-groove mating structure on the surface of the shell and top cover not only facilitates the installation of the device, but also improves the accuracy and stability of the installation, and improves the overall assembly quality. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the structure of the first locking member and the connecting post in this utility model;

[0016] Figure 3 This is a cross-sectional view of the top cover in this utility model;

[0017] Figure 4 This utility model Figure 3 Enlarged view of point A in the middle.

[0018] In the diagram: 1. Housing; 2. Top cover; 3. Locking assembly; 31. Rotating rod; 32. Connecting post; 33. Connecting groove; 34. First locking element; 35. Second locking element; 36. Spring; 37. Fixing plate; 38. Square hole; 4. Mounting groove; 5. Worm gear; 6. Worm wheel. Detailed Implementation

[0019] 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.

[0020] like Figures 1 to 4As shown, this utility model provides a worm gear with a self-locking structure for a car seat level adjuster, including a housing 1 with a top opening, a top cover 2 matching the opening at the top of the housing 1, a worm 5 rotatably connected inside the housing 1, a worm wheel 6 meshing with the surface of the worm 5, and the worm wheel 6 rotatably connected inside the housing 1, and a locking component 3 is provided inside the top cover 2.

[0021] The locking assembly 3 includes a rotating rod 31 disposed between the top cover 2 and the housing 1. The top end of the rotating rod 31 penetrates the surface of the top cover 2 and extends to the upper side of the top cover 2. A connecting post 32 is fixedly connected to the bottom end of the rotating rod 31. A connecting groove 33 adapted to the connecting post 32 is opened on the surface of the worm gear 5. A first locking member 34 is fixedly connected to the side of the rotating rod 31. A second locking member 35 matching the first locking member 34 is fixedly fixed inside the top cover 2. A fixing plate 37 is fixedly connected to the top end of the worm gear 5. A spring 36 is fixedly connected between the first locking member 34 and the fixing plate 37. The spring 36 is in a compressed state. After the level adjuster is adjusted, the elastic force of the spring 36 makes the first locking member 34 and the second locking member 35 engage, thereby locking the worm gear 5.

[0022] like Figures 1 to 4 As shown, both the second locking member 35 and the first locking member 34 are annular side gear discs, and the teeth on the two sets of side gear discs are correspondingly arranged on their adjacent sides. When the first locking member 34 and the second locking member 35 are in contact, the teeth of the two can mesh with each other to ensure the locking effect on the rotating rod 31.

[0023] The top cover 2 has an insertion groove on the side near the first locking member 34 for vertical sliding and rotation of the first locking member 34, which facilitates the rotation adjustment of the rotating rod 31 and ensures the stability of the rotating rod 31 during use.

[0024] The top of the rotating rod 31 is provided with a square hole 38, which allows the operator to easily rotate and adjust the rotating rod 31 through the square hole 38 or the external connector of the square hole 38.

[0025] like Figures 1 to 4 As shown, mounting grooves 4 are provided at the four corners of the surface of the housing 1 and the top cover 2. A cylindrical protrusion is integrally provided on the bottom surface of the top cover 2 near the mounting groove 4, and a groove adapted to the protrusion is provided on the surface of the housing 1. The top cover 2 can be quickly installed on the housing 1 by using bolts or other connecting parts through the mounting grooves 4. The cooperation between the protrusion and the groove ensures accurate installation position and improves installation stability.

[0026] Working principle and process: When the seat needs to be adjusted to a horizontal position, the first locking member 34 and the second locking member 35 are separated by pressing the rotating rod 31 to overcome the elastic force of the spring 36. Then, rotating the rotating rod 31 drives the worm gear 5 to rotate through the connecting column 32. The worm gear 5 meshes with the worm wheel 6 to achieve horizontal adjustment of the seat. After adjusting to the appropriate position, the rotating rod 31 is released. Under the elastic force of the spring 36, the first locking member 34 moves upward and meshes with the second locking member 35 to lock the worm gear 5, thereby locking the worm wheel 6 and preventing seat displacement. When the top cover 2 needs to be installed on the housing 1, it is fixed to the corresponding position of the car seat by bolts and other connecting parts through the mounting grooves 4 at the four corners of the housing 1 and the top cover 2. During the installation process, the protrusion on the bottom surface of the top cover 2 cooperates with the groove on the surface of the housing 1 to ensure accurate installation and improve installation stability.

[0027] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A worm gear with a self-locking structure for a car seat leveling device, comprising a housing (1) having a top opening, a top cover (2) matching the opening being provided at the top of the housing (1), a worm (5) being rotatably connected inside the housing (1), a worm wheel (6) being meshed with the surface of the worm (5), and the worm wheel (6) being rotatably connected inside the housing (1), characterized in that: The top cover (2) is provided with a locking component (3); The locking assembly (3) includes a rotating rod (31) disposed between the top cover (2) and the housing (1). The top end of the rotating rod (31) penetrates the surface of the top cover (2) and extends to the upper side of the top cover (2). A connecting post (32) is fixedly connected to the bottom end of the rotating rod (31). A connecting groove (33) adapted to the connecting post (32) is opened on the surface of the worm gear (5). A first locking member (34) is fixedly connected to the side of the rotating rod (31). A second locking member (35) matching the first locking member (34) is fixedly fixed inside the top cover (2). A fixed plate (37) is fixedly connected to the top end of the worm gear (5). A spring (36) is fixedly connected between the first locking member (34) and the fixed plate (37), and the spring (36) is in a compressed state.

2. The worm gear with a self-locking structure for an automobile seat level adjuster according to claim 1, characterized in that: The second locking member (35) and the first locking member (34) are both annular side toothed discs, and the teeth on the two sets of side toothed discs are respectively arranged on their adjacent sides.

3. The worm gear with a self-locking structure for an automobile seat level adjuster according to claim 1, characterized in that: The top cover (2) has an insertion groove on the side near the first locking member (34) for vertical sliding and rotation of the first locking member (34).

4. The worm gear with a self-locking structure for an automobile seat level adjuster according to claim 1, characterized in that: The top end of the rotating rod (31) is provided with a square hole (38).

5. The worm gear with a self-locking structure for an automobile seat level adjuster according to claim 1, characterized in that: Mounting grooves (4) are provided at the four corners of the surface of the housing (1) and the top cover (2).

6. The worm gear with a self-locking structure for an automobile seat level adjuster according to claim 5, characterized in that: The bottom surface of the top cover (2) near the mounting groove (4) is integrally provided with a cylindrical protrusion, and the surface of the housing (1) is provided with a groove that matches the protrusion.

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