A transmission assembly for an automotive electric locking bolt that eliminates backlash

Abstract

This utility model relates to a gap-eliminating structure for the transmission assembly of an automotive electric locking bolt. It includes a locking bolt body, which comprises a mounting base, a slide assembly, a transmission assembly, and a gap-eliminating assembly. The transmission assembly includes a driver and a transmission rod. The output end of the driver is connected to the transmission rod, which drives the slide assembly to slide. The mounting base has a first side mounting plate and a second side mounting plate. The second side mounting plate has a side mounting hole. The other end of the transmission rod is mounted on the side mounting hole and extends out as an extension. The extension is fitted with the gap-eliminating assembly. The gap-eliminating assembly includes a fastener, an outer washer, and a gap-eliminating element installed sequentially. The outer side of the gap-eliminating element contacts the outer washer, and the inner side of the gap-eliminating element contacts the outer side of the second side mounting plate, and they are then connected by the fastener. This invention not only effectively solves the gap problem of the transmission assembly but also reduces vibration and noise caused by the gap, improving the overall comfort and safety of the vehicle.

Description

Technical Field

[0001] This utility model relates to the technical field of automobile seats, and in particular to a transmission component for an electric locking bolt in automobiles that eliminates gaps. Background Technology

[0002] As a crucial component of a vehicle, the comfort and functionality of car seats directly impact the driving and passenger experience. In the application of electric locking systems in automobiles, the precision and stability of the transmission components are paramount. Over long-term use, traditional electric locking system transmission components experience issues such as loosening, vibration, and noise due to the gradually increasing clearance between mechanical parts. These problems not only affect the lifespan of the locking system but also reduce the comfort and safety of the vehicle.

[0003] Furthermore, existing methods for eliminating clearances often have limitations. Some methods reduce clearances by increasing the complexity of the mechanical structure, but this usually leads to increased production costs and maintenance difficulties.

[0004] Therefore, there is an urgent need for a solution that is simple in structure, low in cost, and can effectively eliminate gaps and improve transmission accuracy and stability in order to address the gap problem in the transmission components of automotive electric locking bolts.

[0005] In response to the above shortcomings, this solution proposes improvements. Utility Model Content

[0006] This utility model proposes a transmission component for an electric car latch that eliminates gaps, thus solving the aforementioned problems existing in the prior art.

[0007] The technical solution of this utility model is implemented as follows: To achieve the above objectives, the present invention adopts the following technical solution: A clearance-eliminating structure for a transmission assembly of an automotive electric locking bolt includes a locking bolt body, which includes a mounting base, a slide assembly, and a transmission assembly mounted on the mounting base. The transmission assembly includes a driver and a transmission rod, the output end of which is connected to the transmission rod. The transmission rod drives the slide assembly to slide. The mounting base has a first side mounting plate and a second side mounting plate for mounting the driver. The second side mounting plate has a side mounting hole. The locking bolt body further includes a clearance-eliminating assembly. The other end of the transmission rod is mounted on the side mounting hole via a transmission shaft sleeve and extends into an extension section. A clearance-eliminating assembly for eliminating clearance generated during the transmission of the transmission rod is installed in this extension section. The clearance-eliminating assembly includes a fastener, an outer washer, and a clearance-eliminating element. The fastener, outer washer, and clearance-eliminating element are sequentially installed on the extension section. The outer side of the clearance-eliminating element faces and contacts the outer washer, and the inner side of the clearance-eliminating element faces and contacts the outer side of the second side mounting plate, and is then connected by the fastener.

[0008] As shown in the above scheme, the extension section is equipped with fasteners, external gaskets, and gap-eliminating elements. The elastic deformation of the gap-eliminating elements is used to eliminate the gap between the transmission rod and the mounting base. This structure is simple, easy to install and adjust, and can effectively solve the gap problem of transmission components without adding complex mechanical structures, thereby improving the accuracy and stability of transmission.

[0009] Preferably, the gap-eliminating element has a gap-eliminating elastic element with an annular or circular structure. The gap-eliminating elastic element is processed into a plurality of planar segments distributed circumferentially and convex segments connected or located between these planar segments. A gap-eliminating space is formed between two planar segments and a convex segment connected to them.

[0010] Preferably, the planar segment contacts the outer gasket surface, and the convex segment contacts the outer side surface of the second side mounting plate.

[0011] As shown in the above scheme, the gap-eliminating element adopts a ring-shaped or circular elastic component for eliminating gaps. It is machined into planar and convex segments spaced circumferentially, with the planar segments contacting the outer gasket surface and the convex segments contacting the outer surface of the second mounting plate. This design can evenly distribute pressure, enhance the gap-eliminating effect, reduce local stress concentration, and extend the service life of the component.

[0012] Preferably, each convex segment is machined with a protrusion, which faces the outer side of the second side mounting plate to form contact.

[0013] As can be seen from the above scheme, the design of the protrusions can increase the local pressure on the contact surface, more effectively fill the tiny gaps, further improve the accuracy of gap elimination, reduce wear, and maintain a long-term stable gap elimination effect.

[0014] Preferably, the gap-eliminating elastic element is made of plastic.

[0015] Preferably, the outer gasket is made of metal or plastic.

[0016] Preferably, the outer gasket is machined into a circular annular surface that contacts the gap-eliminating element and an arched portion, and the gap-eliminating element is mounted on the arched portion.

[0017] Compared with existing technologies, this invention offers several advantages: The gap-eliminating structure not only effectively solves the gap problem in transmission components but also reduces vibration and noise caused by gaps, improving the overall comfort and safety of the vehicle. Furthermore, its simple structure, low cost, and ease of maintenance make it a promising candidate for widespread application and market value. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art 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 An overall view of a gap-eliminating structure for a transmission assembly of an automotive electric locking bolt, according to a specific embodiment of this utility model; Figure 2 for Figure 1 Overall structural diagram at point I; Figure 3 A plan view of a transmission assembly for eliminating gaps in an automotive electric locking bolt, according to a specific embodiment of this utility model; Figure 4 for Figure 3 A cross-sectional view along the AA direction; Figure 5 for Figure 4 Overall structural diagram at point II; Figure 6 A schematic diagram of the structure of the elastic element to eliminate gaps; Figure 7 Rear view of the elastic element to eliminate gaps; Figure 8 A schematic diagram for eliminating gap space; Figure 9 This is a schematic diagram of the outer gasket. Detailed Implementation

[0020] The following will refer to the appendix in the embodiments of this utility model. Figure 1-9 The technical solutions in the embodiments of this utility model are clearly and completely described herein. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model. Example

[0021] like Figures 1 to 9 As shown, this embodiment discloses a transmission assembly for eliminating gaps in an automotive electric locking bolt, including a bolt body. The bolt body includes a mounting base 101, a slide assembly 103, a transmission assembly mounted on the mounting base 103, and a gap-eliminating assembly. The transmission assembly includes a driver 100 and a transmission rod 104. The output end of the driver is connected to the transmission rod, and the transmission rod drives the slide assembly to slide. The mounting base 101 has a first side mounting plate 102 and a second side mounting plate 105 for mounting the driver. The second side mounting plate 105 has a side opening. The other end of the aforementioned transmission rod is mounted on the side mounting hole via a transmission shaft sleeve 110 and extends out as an extension section 1041. The gap elimination assembly includes a fastener 109, an outer washer 107, and a gap elimination component 106. The fastener, outer washer, and gap elimination component are sequentially mounted on the extension section. The outer side of the gap elimination component faces and contacts the outer washer, and the inner side of the gap elimination component faces and contacts the outer side of the second side mounting plate. They are then connected by the fastener, specifically, the fastener is a nut, which is rotatably connected to the extension section of the transmission rod.

[0022] The outer gasket and gap-eliminating element are pressed tightly against the second-side mounting plate to achieve the effect of eliminating gaps.

[0023] An outer gasket 107 and a gap-eliminating element are installed sequentially between the fastener and the second side mounting plate. The combination of the outer gasket and the gap-eliminating element can evenly distribute pressure and reduce local stress concentration. At the same time, the gap-eliminating element fills the gap between the transmission rod and the mounting base through elastic deformation.

[0024] The outer side of the gap-eliminating element contacts the outer gasket 107, and the inner side of the gap-eliminating element contacts the outer side of the second mounting plate: This ensures that the gap-eliminating element can effectively eliminate the gap between the transmission rod and the mounting base after being subjected to the axial force of the fastener, while the outer gasket plays a buffering and protective role.

[0025] The gap-eliminating element comprises a ring-shaped or circular gap-eliminating elastic element 108. This elastic element is machined into several planar segments 1081 spaced circumferentially and convex segments 1082 connecting or located between these planar segments. This design evenly distributes pressure across different contact points, reducing localized wear and extending service life. A gap-eliminating space E is formed between two planar segments and a connected convex segment. This design more effectively provides the convex segment 1082 with a rearward gap-eliminating space E when it moves. The elimination distance of the gap-eliminating space E is... Figure 9 The aforementioned elimination length D fills and eliminates minute gaps, ensuring the accuracy and stability of the transmission. The planar segment contacts the outer gasket surface; specifically, this design preferably uses four segments. The convex segment contacts the outer surface of the second side mounting plate; specifically, this design preferably uses four segments. This structure provides uniform elastic support, ensuring effective elimination of gaps in all directions.

[0026] The planar segment contacts the outer gasket surface: increasing the contact area, ensuring uniform pressure distribution, reducing local stress concentration, and improving the effect of eliminating gaps.

[0027] The convex section contacts the outer side of the second side mounting plate: the shape of the convex section can adapt to the surface of the mounting plate to ensure good fit and contact, and further improve the effect of gap elimination.

[0028] To further improve the responsiveness of gap elimination, each convex segment is machined with a protrusion 1083, which forms contact with the outer surface of the second mounting plate. This protrusion design increases localized contact pressure, more effectively filling minute gaps while reducing wear and maintaining a long-term, stable gap elimination effect.

[0029] The protrusions face the outer surface of the second side mounting plate to form contact: ensuring tight contact between the protrusions and the mounting plate, improving the accuracy of eliminating gaps.

[0030] The gap-eliminating elastic element 108 is made of plastic. This solution prioritizes using elastic plastic for the gap-eliminating elastic element, which can withstand a certain amount of pressure and wear while reducing friction, ensuring that it maintains its good gap-eliminating function during long-term use.

[0031] The outer gasket is made of metal or plastic. It is machined into a circular annular surface 1071 that contacts the gap-eliminating element, and an arched portion 1072, with the gap-eliminating element mounted in the direction of the arched portion. This results in a tighter and more uniform contact with the gap-eliminating element. The arched portion design better adapts to the shape of the gap-eliminating element, allowing for better cooperation between the two under stress, thus improving the reliability and stability of the entire gap-eliminating structure.

[0032] The principle of this utility model is as follows: Connect one end of the transmission rod to the output end of the driver to ensure a reliable connection. Install the transmission shaft sleeve on the side mounting hole of the second side mounting plate, ensuring the fitting accuracy between the transmission shaft sleeve and the side mounting hole. Then insert the other end of the transmission rod into the transmission shaft sleeve. Screw the fastener (nut) into the extension section of the transmission rod and tighten it to the specified torque using a torque wrench. This causes the gap-eliminating element to elastically deform under the axial force of the fastener, thus eliminating the gap between the transmission rod and the mounting base.

[0033] Install the outer shim onto the extension of the drive rod, ensuring that the arched portion of the outer shim faces the side of the second mounting plate. Install the gap-eliminating element in the direction of the arched portion, so that the flat section of the gap-eliminating element contacts the circular annular surface of the outer shim.

[0034] When the driver operates, its output drives the transmission rod to rotate. Because the gap between the transmission rod and the mounting base is eliminated, the transmission rod can precisely transmit power to the slide assembly, allowing the slide assembly to slide smoothly and realize the opening and closing action of the automotive electric locking bolt. The gap elimination element constantly compensates for gaps during the transmission process, ensuring the accuracy and stability of the transmission.

[0035] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A clearance-eliminating structure for a transmission assembly of an automotive electric locking bolt, comprising a locking bolt body, the locking bolt body including a mounting base, a slide assembly, and a transmission assembly mounted on the mounting base, the transmission assembly including a driver and a transmission rod, the output end of the driver being motive-connected to the transmission rod, the transmission rod driving the slide assembly to slide, the mounting base having a first side mounting plate and a second side mounting plate for mounting the driver, the second side mounting plate having a side mounting hole, characterized in that: The bolt body also includes a gap elimination assembly. The other end of the aforementioned transmission rod is mounted on the side mounting hole via a transmission shaft sleeve and extends out to an extension section. A gap elimination assembly for eliminating the gap generated during the transmission of the transmission rod is installed on the extension section. The gap elimination assembly includes a fastener, an outer washer, and a gap elimination element. The fastener, outer washer, and gap elimination element are sequentially installed on the extension section. The outer side of the gap elimination element faces and contacts the outer washer, and the inner side of the gap elimination element faces and contacts the outer side of the second side mounting plate, and is then connected by the fastener.

2. A gap elimination structure for a transmission assembly of an electrically operated lock bolt of a vehicle as claimed in claim 1, wherein: The gap elimination element has a gap elimination elastic element with an annular or circular structure. The gap elimination elastic element is processed into several planar segments distributed circumferentially and convex segments connected or located between these planar segments. A gap elimination space is formed between two planar segments and a convex segment connected to them.

3. The lost motion structure of a drive assembly of an electrically operated lock bolt of a vehicle as claimed in claim 2 wherein: The planar segment contacts the outer gasket surface, and the convex segment contacts the outer side surface of the second side mounting plate.

4. The backlash elimination structure of a transmission assembly of an electric lock for a vehicle according to claim 2 or 3, characterized in that: Each convex segment is machined with a protrusion, which faces the outer side of the second side mounting plate to form contact.

5. A gap elimination structure for a transmission assembly of an electrically operated lock bolt of a vehicle as claimed in claim 4, wherein: The gap-eliminating elastic element is made of plastic.

6. The lost motion structure of a drive assembly of an automotive power latch according to claim 1, wherein: The outer gasket is made of metal or plastic.

7. The backlash elimination structure for a transmission assembly of an electric lock for a vehicle according to claim 1 or 6, characterized in that: The outer gasket is machined into a circular annular surface that contacts the gap elimination element and an arched portion, and the gap elimination element is mounted on the arched portion.

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