Automatic reset type height adjuster assembly for automobile

Abstract

The utility model discloses an automatic reset type height adjuster assembly for an automobile, which comprises a guide rail, a movable seat, a locking mechanism and a reset mechanism, locking grooves are arranged on two sides of the guide rail, unlocking parts on two sides of a button are adopted by the height adjuster assembly to directly act on the side surface of a locking block, and the locking block is rotatably accommodated in the unlocking grooves to complete unlocking. Unlocking action transmission is more direct and reliable, the problems that in a chute guide structure, due to machining precision errors, friction resistance is large, and clamping stagnation is prone to occurring are solved, the machining precision requirement and the assembling difficulty are remarkably lowered, the consistency and reliability of products are improved, meanwhile, the structure can simplify the assembling steps, the assembling efficiency is improved, and the production cost is reduced. And the labor cost is reduced.

Description

Technical Field

[0001] This utility model relates to the field of automotive parts technology, specifically to an automatic reset height adjuster assembly for automobiles. Background Technology

[0002] Seat belts are an essential component of automobiles. The most widely used three-point seat belt consists of a shoulder strap to restrain the upper body and a lap belt to restrain the waist. The webbing has a buckle that engages with the buckle to provide restraint. The shoulder seat belt is attached to the B-pillar of the vehicle via a sliding connection. Because passengers vary in size, the position of the shoulder seat belt may differ, requiring adjustment using the seat belt height adjuster mounted on the B-pillar.

[0003] Height adjuster assemblies on the market vary in structure, but they typically include a slide rail, a movable seat, and a locking mechanism for height adjustment. When height adjustment is needed, the locking mechanism is released, allowing the movable seat to move and reposition to select the appropriate height. Existing height adjuster assemblies suffer from complex locking mechanisms and difficult assembly. For example, Chinese patent CN208993641U discloses a double-sided locking height adjuster for automotive seat belts. Its locking mechanism uses the angled guide groove of the button to cooperate with the guide post of the locking block to achieve locking and unlocking. This requires pressing the locking block together during button assembly, making the assembly process cumbersome and inefficient. Furthermore, the angled guide groove and guide post require high machining precision. If there are errors in the components of the locking mechanism, the height adjuster may experience adjustment jamming or failure to lock properly during use.

[0004] In view of this, there is an urgent need to design an automatic reset height adjuster assembly for automobiles to solve the shortcomings of current height adjusters. Summary of the Invention

[0005] To address the aforementioned problems, this utility model provides an automatic reset height adjuster assembly for automobiles, comprising a guide rail, a movable seat movably connected within the guide rail, a locking mechanism connected to the movable seat, and a reset mechanism fixedly connected to the guide rail and connected to the locking mechanism. Locking slots are provided on both sides of the guide rail. The locking mechanism includes a locking plate, a button, a button reset component, a locking block, and a locking block reset component. The button is movably connected to the locking plate, and the two ends of the button reset component abut against the locking plate and the button, respectively. Reset slots are provided on both sides of the movable seat. The locking slot has locking blocks connected to unlocking slots. The middle part of the locking block reset member is connected to the locking stop plate. Both ends of the locking block reset member are connected to the locking blocks to drive the locking blocks to rotate towards the locking slot. The button includes a main body and side wings located on both sides of the main body. The side wings extend towards the unlocking slot to form an unlocking part. The unlocking part is located outside the locking block. When the button moves in the opposite direction of the reset mechanism, the unlocking part acts on the side of the locking block to drive the locking block to be housed in the unlocking slot.

[0006] In one possible implementation, a rotating groove is provided on the side of the unlocking groove, and the locking block includes a rotating part, an unlocking end face, a locking part, and a reset groove. The rotating part is connected in the rotating groove, the unlocking end face is located between the rotating part and the locking part, and the unlocking end face is the end face of the locking block away from the unlocking groove. The two ends of the locking block reset member form mounting parts, and the mounting parts are connected in the reset groove.

[0007] In one possible implementation, the locking block has an inlet notch that communicates with the reset groove.

[0008] In one possible implementation, the unlocking part is located outside the unlocking end face, and the unlocking part moves with the button to form a linkage with the unlocking end face.

[0009] In one possible implementation, the distance between the two unlocking parts is less than the width of the inner groove of the guide rail.

[0010] In one possible implementation, the locking stop plate has a travel groove, the inner wall of the travel groove has a positioning part, the main body is connected to the travel groove, the side of the main body away from the locking stop plate has an operating part, the side of the operating part has a snap-fit ​​part, the snap-fit ​​part is opposite to the edge of the travel groove, the end of the main body opposite to the positioning part has a reset cavity, one end of the button reset member is connected to the reset cavity, and the other end of the button reset member is sleeved on the positioning part.

[0011] In one possible implementation, the locking plate has a positioning groove, one side of the positioning groove has a positioning platform, the other side of the positioning groove has a pressing part, the middle part of the locking block reset member is connected to the positioning platform, and the pressing part abuts against the side of the locking block reset member.

[0012] In one possible implementation, a connecting portion is provided between the middle of the locking block reset member and the mounting portion, the connecting portion being located between the guide rail and the movable seat.

[0013] In one possible implementation, the reset mechanism includes a coil spring and a coil spring retainer, the coil spring retainer being connected to the guide rail through the coil spring, and the locking plate having a latch portion on the side near the coil spring, the coil spring being connected to the latch portion.

[0014] In one possible implementation, the movable seat has a positioning hole, and the locking plate has a positioning post opposite the positioning hole. The locking plate is connected to the movable seat through the positioning post and the positioning hole.

[0015] The working principle of this automotive automatic reset height adjuster assembly is as follows: When the button is not operated, it moves towards the reset mechanism under the action of the button reset component, so that the unlocking part of the button does not act on the side of the locking block. The locking block rotates towards the locking groove under the action of the locking block reset component and engages in the locking groove. When height adjustment is required, the button is slidable, moving it away from the reset mechanism. The button reset component is compressed, and the unlocking part of the button acts on the side of the locking block, causing the locking block to move into the unlocking groove. The locking block loses its locking engagement with the locking groove, allowing the movable seat to move within the guide rail until the target height is reached. After releasing the button, it resets under the action of the button reset component, releasing the pressure on the locking block. The locking block resets under the action of the locking block reset component and re-engages with the locking groove. The reset mechanism plays the role of resetting the locking stop plate during the adjustment process.

[0016] Compared with the prior art, the technical solution provided by this utility model has the following advantages:

[0017] This utility model of an automatic reset height adjuster assembly for automobiles uses unlocking parts on both sides of the button to directly act on the side of the locking block, rotating the locking block into the unlocking slot to complete the unlocking. The unlocking action is transmitted more directly and reliably, avoiding the problems of high frictional resistance and easy jamming caused by machining accuracy errors in the inclined groove guide structure. It significantly reduces the machining accuracy requirements and assembly difficulty, improves product consistency and reliability, and simplifies the assembly steps, improves assembly efficiency, and reduces labor costs. Attached Figure Description

[0018] Figure 1 This is a three-dimensional view of the automatic reset height adjuster for automobiles according to an embodiment of this utility model.

[0019] Figure 2 This is an exploded view of an automatic reset height adjuster assembly for automobiles, according to an embodiment of this utility model.

[0020] Figure 3 This is a perspective view of part of the locking mechanism and movable seat in an embodiment of this utility model.

[0021] Figure 4 This is an exploded view of the locking mechanism and movable seat according to an embodiment of the present utility model.

[0022] Figure 5 This is a perspective view of the locking plate in an embodiment of the present utility model.

[0023] Figure 6 This is a perspective view of the movable seat in an embodiment of the present utility model.

[0024] Figure 7 This is a perspective view of the locking block in an embodiment of the present utility model. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, 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 scope of protection of this utility model. The accompanying drawings are for illustrative purposes only, representing schematic diagrams only, not actual object drawings, and should not be construed as limiting this patent. To better illustrate the embodiments of this utility model, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual product dimensions. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings.

[0026] Combined with appendix Figure 1 To be continued Figure 7This utility model provides an automatic reset height adjuster assembly for automobiles, comprising a guide rail 1, a movable seat 2 movably connected within the guide rail 1, a locking mechanism 3 connected to the movable seat 2, and a reset mechanism 4 fixedly connected to the guide rail 1 and connected to the locking mechanism 3. Locking grooves 11 are provided on both sides of the guide rail 1. The locking mechanism 3 includes a locking plate 31, a button 32, a button reset component 33, a locking block 34, and a locking block reset component 35. The button 32 is movably connected to the locking plate 31. The two ends of the button reset component 33 abut against the locking plate 31 and the button 32, respectively. Unlocking grooves 21 are provided on both sides of the movable seat 2. The locking block 34... The locking block reset member 25 is connected to the middle of the locking stop plate 31, and the two ends of the locking block reset member 35 are respectively connected to the locking block 34 to drive the locking block 34 to rotate in the direction of the locking groove 11. The button 32 includes a main body 321 and side wings 322 located on both sides of the main body 321. The side wings 322 extend in the direction of the unlocking groove 21 to form an unlocking part 323. The unlocking part 323 is located outside the locking block 34. When the button 32 moves in the opposite direction of the reset mechanism 4, the unlocking part 323 acts on the side of the locking block 34 to drive the locking block 34 to be housed in the unlocking groove 21.

[0027] In this embodiment, as shown in the appendix Figure 2 As shown, the two unlocking slots 21 on the movable seat 2 are symmetrically opened, and there are two locking blocks 34, which are also symmetrically arranged.

[0028] The working principle of this automatic reset height adjuster assembly for automobiles is as follows: When button 32 is not operated, button 32 moves towards the reset mechanism 4 under the action of button reset member 33, so that the unlocking part 323 of button 32 does not act on the side of locking block 34. Locking block 34 rotates towards locking groove 11 under the action of locking block reset member 35, and locking block 34 is engaged in locking groove 11; when height adjustment is required, button 32 is slidably operated, button 32 moves away from reset mechanism 4, and button reset member 33 is compressed. The unlocking part 323 of button 32 acts on the side of locking block 34, causing locking block 34 to move into unlocking groove 21. Locking block 34 loses its locking engagement with locking groove 11, allowing movable seat 2 to move within guide rail 1 until the target height is reached and button 32 is released. Button 32 is reset by button reset member 33, releasing the pressure on locking block 34. Locking block 34 is reset by locking block reset member 35, re-forming a locking engagement with locking groove 11. Reset mechanism 4 plays the role of resetting locking stop plate 31 during adjustment.

[0029] In this embodiment, as shown in the appendix Figure 6 and attached Figure 7 As shown, a rotating groove 22 is provided on the side of the unlocking groove 21. The locking block 34 includes a rotating part 341, an unlocking end face 342, a locking part 343, and a reset groove 344. The rotating part 341 is connected in the rotating groove 22. The unlocking end face 342 is located between the rotating part 341 and the locking part 343. The unlocking end face 342 is the end face of the locking block 34 away from the unlocking groove 21. The two ends of the locking block reset member 35 form mounting parts 351, and the mounting parts 351 are connected in the reset groove 344.

[0030] In this embodiment, as shown in the appendix Figure 2 As shown, the locking block reset member 35 is an irregular torsion spring.

[0031] In this embodiment, as shown in the appendix Figure 7 As shown, the unlocking end face 342 is an arc-shaped surface, and the reset groove 344 is used to connect the locking block 34 and the mounting part 351 of the locking block reset member 35 to form a stable fit.

[0032] In this embodiment, as shown in the appendix Figure 7 As shown, the locking block 34 has an inlet notch 345, which is connected to the reset groove 344. The inlet notch 345 is slightly larger than the size of the mounting part 351, which facilitates product assembly.

[0033] In this embodiment, the unlocking part 323 is located outside the unlocking end face 342, and the unlocking part 323 moves with the button 32 to form a linkage with the unlocking end face 342.

[0034] In this embodiment, the distance between the two unlocking parts 323 is less than the width of the inner groove of the guide rail 1, ensuring that the unlocking part 323 does not affect the movement within the guide rail 1 after unlocking the locking block 34.

[0035] In this embodiment, as shown in the appendix Figure 5As shown, the locking stop plate 31 has a travel groove 311, and the inner wall of the travel groove 311 has a positioning part 312. The main body 321 is connected to the travel groove 311. The side of the main body 321 away from the locking stop plate 31 has an operating part 324. The side of the operating part 324 has a snap-fit ​​part 325. The snap-fit ​​part 325 is directly opposite the edge of the travel groove 311. The end of the main body 321 opposite to the positioning part 312 has a reset cavity 326. One end of the button reset member 33 is connected to the reset cavity 326, and the other end of the button reset member 33 is sleeved on the positioning part 312. The button reset member 33 is a spring.

[0036] In this embodiment, as shown in the appendix Figure 4 and attached Figure 5 As shown, the locking stop plate 31 has a positioning groove 313, a positioning platform 314 on one side of the positioning groove 313, and a pressing part 315 on the other side of the positioning groove 313. The middle part of the locking block reset member 35 is connected to the positioning platform 314, and the pressing part 315 abuts against the side of the locking block reset member 35.

[0037] In this embodiment, as shown in the appendix Figure 4 As shown, a connecting part 352 is provided between the middle part of the locking block reset member 35 and the mounting part 351, and the connecting part 352 is located between the guide rail 1 and the movable seat 2.

[0038] In this embodiment, as shown in the appendix Figure 2 As shown, the reset mechanism 4 includes a coil spring 41 and a coil spring fixing member 42. The coil spring fixing member 42 passes through the coil spring 41 and is connected to the guide rail 1. The locking plate 31 has a buckle portion 316 on the side near the coil spring 41, and the coil spring 41 is connected to the buckle portion 316.

[0039] In this embodiment, as shown in the appendix Figure 4 As shown, the movable seat 2 has a positioning hole 23, and the locking plate 31 has a positioning post 317 positioned opposite the positioning hole 23. The locking plate 31 is connected to the movable seat 2 through the cooperation of the positioning post 317 and the positioning hole 23.

[0040] This utility model of an automatic reset height adjuster assembly for automobiles uses the unlocking parts 323 on both sides of the button 32 to directly act on the side of the locking block 34, rotating the locking block 34 into the unlocking groove 21 to complete the unlocking. The unlocking action is transmitted more directly and reliably, avoiding the problems of high frictional resistance and easy jamming caused by machining accuracy errors in the inclined groove guide structure. It significantly reduces the machining accuracy requirements and assembly difficulty, improves product consistency and reliability, and simplifies the assembly steps, improves assembly efficiency, and reduces labor costs.

[0041] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating this utility model, and are not intended to limit the implementation of this utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model, or direct / indirect applications in other related technical fields, should be included within the scope of protection of the claims of this utility model.

Claims

1. An automatic reset height adjuster assembly for automobiles, comprising a guide rail, a movable seat movably connected within the guide rail, a locking mechanism connected to the movable seat, and a reset mechanism fixedly connected to the guide rail and connected to the locking mechanism, wherein locking grooves are provided on both sides of the guide rail, characterized in that, The locking mechanism includes a locking plate, a button, a button reset component, a locking block, and a locking block reset component. The button is movably connected to the locking plate. The two ends of the button reset component abut against the locking plate and the button, respectively. Unlocking slots are provided on both sides of the movable seat. The locking blocks are respectively connected in the unlocking slots. The middle part of the locking block reset component is connected to the locking plate. The two ends of the locking block reset component are respectively connected to the locking block to drive the locking block to rotate towards the locking slot. The button includes a main body and side wings located on both sides of the main body. The side wings extend towards the unlocking slot to form an unlocking part. The unlocking part is located outside the locking block. When the button moves in the opposite direction of the reset mechanism, the unlocking part acts on the side of the locking block to drive the locking block to be housed in the unlocking slot.

2. The automotive automatic reset height adjuster assembly according to claim 1, characterized in that, A rotating groove is provided on the side of the unlocking groove. The locking block includes a rotating part, an unlocking end face, a locking part, and a reset groove. The rotating part is connected in the rotating groove. The unlocking end face is located between the rotating part and the locking part. The unlocking end face is the end face of the locking block away from the unlocking groove. The two ends of the locking block reset member form mounting parts, and the mounting parts are connected in the reset groove.

3. The automotive automatic reset height adjuster assembly according to claim 2, characterized in that, The locking block has an inlet notch, which is connected to the reset groove.

4. The automotive automatic reset height adjuster assembly according to claim 2, characterized in that, The unlocking part is located on the outside of the unlocking end face, and the unlocking part moves with the button to form a linkage with the unlocking end face.

5. The automotive automatic reset height adjuster assembly according to claim 2, characterized in that, The distance between the two unlocking parts is less than the width of the inner groove of the guide rail.

6. The automotive automatic reset height adjuster assembly according to claim 2, characterized in that, The locking plate has a travel groove, and the inner wall of the travel groove has a positioning part. The main body is connected to the travel groove. The side of the main body away from the locking plate has an operating part. The side of the operating part has a snap-fit ​​part, which is directly opposite the edge of the travel groove. The end of the main body opposite the positioning part has a reset cavity. One end of the button reset component is connected to the reset cavity, and the other end of the button reset component is sleeved on the positioning part.

7. The automotive automatic reset height adjuster assembly according to claim 2, characterized in that, The locking plate has a positioning groove, a positioning platform on one side of the positioning groove, and a pressing part on the other side of the positioning groove. The middle part of the locking block reset member is connected to the positioning platform, and the pressing part abuts against the side of the locking block reset member.

8. The automotive automatic reset height adjuster assembly according to claim 7, characterized in that, A connecting part is provided between the middle part of the locking block reset component and the mounting part, and the connecting part is located between the guide rail and the movable seat.

9. An automatic reset height adjuster assembly for automobiles according to any one of claims 1 to 7, characterized in that, The reset mechanism includes a coil spring and a coil spring fixing member. The coil spring fixing member passes through the coil spring and is connected to the guide rail. The locking plate has a buckle on the side near the coil spring, and the coil spring is connected to the buckle.

10. An automatic reset height adjuster assembly for automobiles according to any one of claims 1 to 7, characterized in that, The movable seat has a positioning hole, and the locking plate has a positioning post at the position opposite the positioning hole. The locking plate is connected to the movable seat through the cooperation of the positioning post and the positioning hole.

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