Automobile front hood lock positioning structure and automobile

Abstract

The utility model provides a kind of automobile front hatch lock catch positioning structure, including lock body, lock catch and positioning pin, wherein, lock body is fixed on front hatch crossbeam, and the recess and the positioning slot are set in lock body;Lock catch is fixed on front hatch, and it is oppositely set with lock body, and lock catch is clamped in recess;Positioning pin is fixed in the side of lock catch close to lock body, and it is position corresponding with positioning slot, and positioning pin is inserted in positioning slot, so that the prepositioning of lock body and lock catch assembly position is realized, the accuracy of the relative position of lock body and lock catch is guaranteed, the deviation of lock and lock catch in Y direction and X direction is reduced, so as to reduce the sound of knock lock and collapse lock, simultaneously, without repeatedly adjusting lock or lock catch position, assembly working hours is reduced, and production efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of locking technology, and in particular to a locking and positioning structure for a car hood and a car. Background Technology

[0002] The hood latch is a key component for closing and locking the hood. It is mainly operated by pressing through a mechanical structure. It consists of a fixed part installed on the hood and a movable part installed on the body. The opening and closing function is achieved by joining and separating the parts.

[0003] A front hood sheet metal latch reinforcement plate assembly structure with publication number CN109798033A includes a latch and a front hood reinforcement plate; the middle section of the reinforcement plate is provided with two connecting holes, and the latch is provided with a mounting threaded hole; the latch and the reinforcement plate are connected by a screw connector; the screw connector includes a U-shaped stud, and both ends of the stud are provided with screw heads; the stud of the screw connector passes through the mounting threaded hole; the two screw heads pass through the two connecting holes one-to-one and are locked by nuts; the diameter of the stud is larger than the diameter of the connecting hole, and the diameter of the connecting hole is larger than the diameter of the screw head.

[0004] In the existing technology, the lock and latch are fixed to the body and the hood respectively without relative positioning, which is greatly affected by the deviation of the body size. This deviation will cause the lock to make a knocking sound when locking. At present, the lock or latch position is repeatedly adjusted after pre-installation to make the lock and latch close to the design position and reduce the knocking and knocking sound. However, repeatedly adjusting the lock or latch position will increase the time required and reduce the assembly efficiency. Utility Model Content

[0005] In view of this, this utility model proposes a car hood latch positioning structure and a car, which uses a positioning pin and a positioning groove to ensure the accuracy of the relative position of the lock body and the latch, and reduces the occurrence of knocking and snapping sounds. At the same time, it eliminates the need to repeatedly adjust the position of the lock or latch, thus improving production efficiency.

[0006] The technical solution of this utility model is implemented as follows: Firstly, this utility model provides a car hood latch positioning structure, including a lock body, a latch, and a positioning pin, wherein...

[0007] The lock body is fixed to the front cabin crossbeam, and the lock body has a slot and a positioning slot.

[0008] The latch is fixed to the front hood and is positioned opposite to the lock body, with the latch engaging in the slot.

[0009] The positioning pin is fixed on the side of the latch near the lock body and corresponds to the position of the positioning groove. The positioning pin is inserted into the positioning groove to pre-position the lock body and the latch assembly position.

[0010] Based on the above technical solutions, preferably, the latch includes a locking plate, a locking ring, and a fixing member, wherein,

[0011] The locking ring is fixed to the locking plate, and the position of the locking ring corresponds to the position of the slot, with the locking ring engaging in the slot.

[0012] The lock plate has symmetrically arranged mounting holes, and the fastener passes through the mounting holes and is threaded to the front cover.

[0013] Based on the above technical solutions, preferably, the positioning pin and the locking ring are located on the same side of the locking plate, and the number of positioning pins is at least two, with at least two positioning pins arranged on both sides of the locking ring.

[0014] Based on the above technical solutions, preferably, at least two of the positioning pins are arranged symmetrically in the vertical direction of the center of the locking ring.

[0015] Based on the above technical solutions, preferably, the positioning pin is cylindrical, and the end of the positioning pin away from the locking plate is truncated cone-shaped, and the diameter of the end closer to the locking plate is larger than the diameter of the other end.

[0016] Based on the above technical solutions, preferably, the shape of the positioning pin is adapted to the positioning groove.

[0017] Based on the above technical solutions, preferably, the inclination degree of the tapered surface of the positioning pin is 45~60°.

[0018] Based on the above technical solutions, preferably, an elastic buffer layer is provided in the positioning groove, and when the positioning pin is inserted into the positioning groove, it abuts against the inner wall of the elastic buffer layer to reduce wear between the positioning pin and the positioning groove.

[0019] Based on the above technical solutions, preferably, the elastic buffer layer is a rubber sleeve with a thickness of 0.5-2mm.

[0020] Secondly, this utility model provides a car, including a car hood latch positioning structure.

[0021] The automobile hood latch positioning structure and automobile of this utility model have the following advantages compared with the prior art:

[0022] (1) By inserting the positioning pin into the positioning groove, the pre-positioning of the lock body and the latch assembly position is realized, ensuring the accuracy of the relative position of the lock body and the latch, reducing the deviation of the lock and the latch in the Y and X directions, thereby reducing the occurrence of lock knocking and lock breaking sounds. At the same time, there is no need to repeatedly adjust the position of the lock or latch, reducing assembly time and improving production efficiency.

[0023] (2) The elastic buffer layer can undergo elastic deformation when the positioning pin is inserted, which reduces wear caused by excessive stress and absorbs vibration energy, thus achieving a vibration effect. Attached Figure Description

[0024] 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.

[0025] Figure 1 This is a perspective view of the automotive hood latch positioning structure of this utility model.

[0026] Figure 2 This is a perspective view of the latch positioning structure of the automobile hood latch of this utility model.

[0027] Figure 3 This is a perspective view of the lock body of the automotive hood latch positioning structure of this utility model. Detailed Implementation

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

[0029] like Figure 1-3 As shown, in a first aspect, the present invention provides a car hood latch positioning structure, comprising a lock body 1, a latch 2, and a positioning pin 3. The lock body 1 is fixed to the front hood crossbeam and has a slot 100 and a positioning groove 110. The latch 2 is fixed to the hood and is positioned opposite to the lock body 1, and is engaged in the slot 100. The positioning pin 3 is fixed to the side of the latch 2 near the lock body 1 and corresponds to the position of the positioning groove 110. The positioning pin 3 is inserted into the positioning groove 110 to pre-position the lock body 1 and the latch 2 in the assembly position.

[0030] It should be noted that by inserting the positioning pin 3 into the positioning groove 110, the pre-positioning of the lock body 1 and the latch 2 is achieved, ensuring the accuracy of the relative position of the lock body 1 and the latch 2, reducing the deviation of the lock 1 and the latch 2 in the Y and X directions, thereby reducing the occurrence of lock knocking and lock breaking sounds. At the same time, there is no need to repeatedly adjust the position of the lock or latch, reducing assembly time and improving production efficiency.

[0031] Specifically, the lock body 1 is fixed to the front cabin crossbeam by bolts.

[0032] In this embodiment, the latch 2 includes a locking plate 21, a locking ring 22, and a fixing member 23. The locking ring 22 is fixed on the locking plate 21, and the position of the locking ring 22 corresponds to the position of the slot 100. The locking ring 22 is engaged in the slot 100. The locking plate 21 has symmetrically arranged mounting holes 200, and the fixing member 23 passes through the mounting holes 200 and is threadedly fixed to the front hatch.

[0033] It should be noted that the lock plate 21 has a mounting part protruding towards the lock body 1 in the middle, and the lock ring 22 and the positioning pin 3 can be fixed by riveting, welding or nut connection.

[0034] In this embodiment, the positioning pin 3 and the locking ring 22 are located on the same side of the locking plate 21, and the number of positioning pins 3 is at least two, with at least two positioning pins 3 arranged on both sides of the locking ring 22.

[0035] It should be noted that by cooperating with the two positioning pins 3 and the corresponding positioning grooves 110 on the lock body 1, the position of the latch 2 in the X and Y directions can be determined more accurately, effectively reducing the deviation between the lock and the latch caused by the precision of the vehicle body. This reduces the probability of the lock knocking sound when locking and the lock snapping sound when unlocking. Furthermore, during vehicle operation, the hood will be subjected to various vibrations and external forces. The multiple positioning pins 3 can better withstand these forces, preventing the latch 2 from shaking or shifting relative to the lock body 1, thus ensuring the stability and reliability of the hood lock.

[0036] In this embodiment, at least two positioning pins 3 are symmetrically arranged in the vertical direction of the center of the locking ring 22.

[0037] It should be noted that the symmetrical arrangement makes the positioning pin 3 more evenly positioned on the latch 2, which can more accurately determine the position of the latch 2 in the horizontal plane, thus improving the positioning accuracy and stability.

[0038] In this embodiment, the positioning pin 3 is cylindrical, and the end of the positioning pin 3 away from the locking plate 21 is truncated cone-shaped, while the diameter of the end closer to the locking plate 21 is larger than the diameter of the other end.

[0039] It should be noted that the front end of the positioning pin 3 is shaped like a frustum cone and plays a guiding role when it is inserted into the positioning groove 110, which reduces deviations and jamming during the assembly process, ensures the fitting accuracy between the positioning pin 3 and the positioning groove 110, and improves the assembly efficiency.

[0040] In this embodiment, the shape of the positioning pin 3 is adapted to the positioning groove 110.

[0041] It should be noted that the positioning pin 3 is cylindrical with one end being a frustum conical shape, and the positioning groove 110 matches the corresponding shape. The cylindrical part fits tightly against the inner cylindrical wall of the positioning groove 110, and the frustum conical end fits perfectly against the conical entrance of the positioning groove 110, thereby achieving accurate positioning and reliable connection.

[0042] In this embodiment, the inclination degree of the tapered surface of the positioning pin 3 is 45~60°.

[0043] It should be noted that when the inclination of the tapered surface of the positioning pin 3 is between 45° and 60°, it provides good guidance during assembly. When assembling the latch 2 with the lock body 1, only a small external force is needed for the positioning pin 3 to insert into the positioning groove 110 along the tapered surface, greatly improving assembly efficiency. If the inclination is less than 45°, the tapered surface is too gentle, the guiding effect is weakened, and a larger external force may be needed to push the positioning pin 3 into the groove accurately during assembly, increasing the assembly difficulty and time cost. When the inclination is greater than 60°, the tapered surface is too steep. Although the insertion speed may be faster, when approaching the bottom of the positioning groove 110, the positioning pin 3 or the positioning groove 110 is easily damaged due to excessive impact force, affecting the assembly quality.

[0044] Specifically, in this embodiment, the tapered surface of the positioning pin 3 has an inclination of 60°.

[0045] In this embodiment, an elastic buffer layer 111 is provided in the positioning groove 110. When the positioning pin 3 is inserted into the positioning groove 110, it abuts against the inner wall of the elastic buffer layer 111, reducing the wear between the positioning pin 3 and the positioning groove 110.

[0046] It should be noted that the elastic buffer layer 111 has good elasticity and flexibility. It can undergo elastic deformation when the positioning pin 3 is inserted, which greatly reduces the degree of local stress concentration, thereby reducing wear caused by excessive stress. In addition, during vehicle operation, the hood will be subjected to various vibrations and impacts. The vibration is transmitted to the positioning pin 3 and the positioning groove 110. The elastic buffer layer 111 can absorb the vibration energy and play a vibration effect.

[0047] Specifically, in this embodiment, the elastic buffer layer 111 is a rubber sleeve with a thickness of 0.5-2mm.

[0048] Working principle:

[0049] When it is necessary to assemble the hood with the body, slowly lower the hood so that the positioning pin 3 on the latch 2 gradually approaches the positioning groove 110 on the lock body 1. The positioning pin 3 is inserted into the positioning groove 110 to automatically correct the position of the latch 2 and the lock 1. Then open the hood to fix the position of the latch 2 and the lock body 1. The relative position of the lock body 1 and the latch 2 can be adjusted by configuring the positioning pin 3 and the positioning groove 110. It can be corrected in one go, avoiding the assembly deviation caused by the accumulation of body tolerances.

[0050] Secondly, this utility model provides a car, including a car hood latch positioning structure.

[0051] 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 locking and positioning structure for a car hood, characterized in that: It includes a lock body (1), a latch (2), and a positioning pin (3), wherein, The lock body (1) is fixed on the front cabin crossbeam, and the lock body (1) is provided with a slot (100) and a positioning slot (110). The latch (2) is fixed on the front hood and is positioned opposite to the lock body (1). The latch (2) is engaged in the slot (100). The positioning pin (3) is fixed on the side of the latch (2) near the lock body (1) and corresponds to the position of the positioning groove (110). The positioning pin (3) is inserted into the positioning groove (110) so that the lock body (1) and the latch (2) are pre-positioned.

2. The automotive hood latch positioning structure as described in claim 1, characterized in that: The latch (2) includes a locking plate (21), a locking ring (22), and a fixing member (23), wherein, The locking ring (22) is fixed on the locking plate (21), and the position of the locking ring (22) corresponds to the position of the slot (100). The locking ring (22) is engaged in the slot (100). The lock plate (21) has symmetrically arranged mounting holes (200), and the fastener (23) passes through the mounting holes (200) and is threaded to the front hatch.

3. The automotive hood latch positioning structure as described in claim 2, characterized in that: The positioning pin (3) and the locking ring (22) are located on the same side of the locking plate (21), and the number of positioning pins (3) is at least two, with at least two positioning pins (3) arranged on both sides of the locking ring (22).

4. The automotive hood latch positioning structure as described in claim 2, characterized in that: At least two of the positioning pins (3) are symmetrically arranged in the vertical direction of the center of the locking ring (22).

5. The automotive hood latch positioning structure as described in claim 1, characterized in that: The positioning pin (3) is cylindrical, and the end of the positioning pin (3) away from the locking plate (21) is truncated cone-shaped, and the diameter of the end closer to the locking plate (21) is larger than the diameter of the other end.

6. The automotive hood latch positioning structure as described in claim 5, characterized in that: The shape of the positioning pin (3) is adapted to the positioning groove (110).

7. The automotive hood latch positioning structure as described in claim 5, characterized in that: The taper of the positioning pin (3) has an inclination of 45~60°.

8. The automotive hood latch positioning structure as described in claim 1, characterized in that: An elastic buffer layer (111) is provided in the positioning groove (110). When the positioning pin (3) is inserted into the positioning groove (110), it abuts against the inner wall of the elastic buffer layer (111) to reduce the wear between the positioning pin (3) and the positioning groove (110).

9. The automotive hood latch positioning structure as described in claim 8, characterized in that: The elastic buffer layer (111) is a rubber sleeve with a thickness of 0.5-2mm.

10. A car, characterized in that: The vehicle hood latching and positioning structure includes any one of claims 1-9.

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