Compact mechanical front cover lock

Abstract

The utility model discloses a compact mechanical front cover lock which comprises a bottom plate, a front cover, a ratchet hook and a pawl, the ratchet hook and the pawl are rotationally arranged between the bottom plate and the front cover through reset pieces respectively, a first limiting part, a second limiting part and a guide hole are symmetrically arranged on the bottom plate, and the rotation range of the pawl is limited through the first limiting part; the maximum unlocking position of the ratchet hook is limited by the second limiting part; a first meshing part and a third limiting part are arranged on the pawl, and a second meshing part and a third meshing part are arranged on the ratchet hook; full locking, half locking and full unlocking are achieved through the first meshing part, the second meshing part and the third meshing part; the bottom plate adopts a mirror image structure, the installation directions of the ratchet hook and the pawl can be selected according to the left and right rudders, and the cost of production equipment is reduced. The pawl is provided with the hanging part, the hanging part is provided with the fourth limiting part, the through hole is provided with the opening, hanging of the inhaul cable is facilitated, and the padlock is effectively prevented from being separated from the hanging part through the fourth limiting part.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile parts, in particular to a compact mechanical front cover lock. Background Art

[0002] With the popularity of new energy vehicles, more and more cars have front cabin storage boxes, which limits the installation space of other components in the front cabin. In addition, vehicles are divided into left-hand drive and right-hand drive. The existing front hood lock structure requires two independent molds to produce left-hand and right-hand drive front hood locks. Utility Model Content

[0003] In view of the defects of the above-mentioned prior art, the main purpose of the present utility model is to overcome the shortcomings of the prior art and discloses a compact mechanical front cover lock, comprising a base plate, a front cover, a ratchet hook and a pawl, wherein the ratchet hook and the pawl are respectively rotatably arranged between the base plate and the front cover through a reset member, and a first limiting portion, a second limiting portion and a guide hole are symmetrically arranged on the base plate, and the first limiting portion is used to limit the rotation range of the pawl; the second limiting portion is used to limit the maximum unlocking position of the ratchet hook; a first meshing portion and a third limiting portion are provided on the pawl, and a second meshing portion and a third meshing portion are provided on the ratchet hook; full locking, half locking and full unlocking are achieved by using the first meshing portion, the second meshing portion and the third meshing portion; when fully locked, the first meshing portion is engaged with the second meshing portion; when half locked, the first meshing portion is engaged with the third meshing portion; when fully unlocked, the third limiting portion is engaged with the third meshing portion; the cable passes through the guide hole and is connected to the pawl.

[0004] Furthermore, it also includes a lifting mechanism, which is arranged on the bottom plate and is used to lift the front cover.

[0005] Furthermore, the lifting mechanism includes an ejector pin seat, a spring and an ejector pin. A guide cavity is provided on the ejector pin seat. The spring is sleeved on the ejector pin and is arranged in the guide cavity. A guide hole is provided at the bottom of the guide cavity. The guide hole is slidably engaged with the ejector pin.

[0006] Furthermore, a stop ring is provided at the lower end of the ejector pin.

[0007] Furthermore, the reset element is a torsion spring.

[0008] Furthermore, the first limiting portion, the second limiting portion and the bottom plate are an integral structure.

[0009] Furthermore, a first positioning hole and a second positioning hole are respectively provided on the left and right sides of the bottom plate, the first positioning hole is a round hole, and the second positioning hole is a waist-shaped hole.

[0010] Furthermore, a hanging portion is provided on the pawl, and the hanging portion includes a through hole and a fourth limiting portion. A first opening is provided on the side of the through hole, and the fourth limiting portion is provided on one side of the first opening and is located at the axial extension of the through hole.

[0011] Furthermore, the fourth limiting portion is integrally provided with the through hole.

[0012] Beneficial effects obtained by the utility model:

[0013] The base plate of this utility model utilizes a mirrored structure, allowing the installation orientation of the ratchet hook and pawl to be selected based on the left or right rudder, reducing production equipment costs. The pawl is provided with a hooking portion, which is also provided with a fourth stopper. An opening is provided in the through-hole to facilitate cable hooking. The fourth stopper effectively prevents the padlock from separating from the hooking portion. The base is provided with a first and second positioning hole, and the round hole and waist-shaped hole cooperate to achieve rapid positioning and assembly of the front cover lock. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a front view of a compact mechanical front cover lock of the utility model;

[0015] Figure 2 This is an exploded schematic diagram of a compact mechanical front cover lock of the present invention;

[0016] Figure 3 This is a side view of a compact mechanical front cover lock of the present invention;

[0017] Figure 4 Schematic diagram of the three-dimensional structure of the pawl and the hook;

[0018] Figure 5 Schematic diagram of the three-dimensional structure of the pawl;

[0019] Figure 6 Schematic diagram of the state of the pawl and ratchet hook when fully unlocked;

[0020] Figure 7 Schematic diagram of the state of the pawl and ratchet hook when half locked;

[0021] Figure 8 Schematic diagram of the status of the pawl and ratchet hook when fully locked;

[0022] The reference numerals are as follows:

[0023] 1. Base plate, 2. Front cover, 3. Ratchet, 4. Ratchet hook, 5. Rivet, 6. Resetting member, 7. Lifting mechanism, 11. First limiting portion, 12. Second limiting portion, 13. Guide hole, 14. First positioning hole, 15. Second positioning hole, 31. First meshing portion, 32. Third limiting portion, 33. Hanging portion, 41. Second meshing portion, 42. Third meshing portion, 71. Ejector pin seat, 72. Spring, 73. Ejector pin, 74. Stop ring, 75. Ejector block, 331. Through hole, 332. Fourth limiting portion, 333. First opening. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0025] A compact mechanical front cover lock, such as Figures 1-8 As shown, it includes a base plate 1, a front cover 2, a ratchet hook 4, and a ratchet pawl 3. Rivet holes are respectively provided at the relative positions of the base plate 1 and the front cover 2. Two rivets 5 are provided. Axial holes are provided on the ratchet hook 4 and the ratchet 3. The ratchet hook 4 and the ratchet 3 are respectively rotatably connected to the rivets 5 through the axial holes. The rivet 5 connects the base plate 1 and the front cover 2. The ratchet hook 4 and the ratchet 3 are respectively connected to the base plate 1 through a reset member 6. The reset member 6 provides rotational power for the ratchet hook 4 and the ratchet 3. Specifically, the reset member 6 is a torsion spring, which is sleeved on the rivet 5. The two ends of the torsion spring respectively connect the ratchet hook 4 to the base plate 1 and the ratchet 3 to the base plate 1. Among them, the base plate 1 is symmetrically provided with a first limiting portion 11, a second limiting portion 12 and a guide hole 13. The first limiting portion 11 is used to limit the rotation range of the pawl 3; that is, the pawl 3 is subjected to the restoring force of the reset member 6 and rotates counterclockwise around the rivet 5. The lower end of the pawl 3 contacts the first limiting portion 11 to limit the pawl 3 from further rotation. The second limiting portion 12 is used to limit the maximum unlocking position of the ratchet hook 4; that is, the ratchet hook 4 is subjected to the restoring force of the reset member 6 and rotates clockwise. The second limiting portion 12 prevents the ratchet hook 4 from excessive rotation. The pawl 3 is provided with a first meshing portion 31 and a third limiting portion 32, and the ratchet hook 4 is provided with a second meshing portion 41 and a third meshing portion 42; the first meshing portion 31, the second meshing portion 41 and the third meshing portion 42 are used to achieve full locking, half locking and full unlocking. When fully locked, the first engaging portion 31 engages with the second engaging portion 41; when partially locked, the first engaging portion 31 engages with the third engaging portion 42; and when fully unlocked, the third limiting portion 32 engages with the third engaging portion 42. The guide hole 13 guides the movement of the cable; during use, the cable passes through the guide hole 13 and connects to the pawl 3. The cable pulls the pawl 3 to rotate, switching the front cover lock between partially locked and fully unlocked.

[0026] In one embodiment, if Figures 1-8As shown, it also includes a lifting mechanism 7, which is arranged on the base plate 1 and is used to lift the front cover.

[0027] In a specific embodiment, if Figures 1-8 As shown, the lifting mechanism 7 includes an ejector pin seat 71, a spring 72, and an ejector pin 73. A guide cavity is provided on the ejector pin seat 71, and the spring 72 is sleeved on the ejector pin 73. The spring 72 is disposed within the guide cavity, and a guide hole is provided at the bottom of the guide cavity. The guide hole and the ejector pin 73 slide in engagement. When the ejector pin 73 moves downward, the spring 72 compresses and accumulates force in the guide cavity. When the front cover lock is unlocked, the spring 72 drives the ejector pin 73 upward to lift the front cover. Preferably, an ejector block 75 is mounted on the ejector pin 73, which slides in engagement with the guide cavity. The ejector pin 73 drives the ejector block 75 upward to push the front cover open.

[0028] In the above embodiment, if Figures 1-8 As shown, a stop ring 74 is provided at the lower end of the ejector pin 73 , and the stop ring 74 limits the highest position to which the ejector pin 73 can move upward, thereby preventing the ejector pin 73 from separating from the ejector pin seat 71 .

[0029] In one embodiment, if Figures 1-8 As shown, the first limiting portion 11 and the second limiting portion 12 are integrally formed with the bottom plate 1. Specifically, the first limiting portion 11 and the second limiting portion 12 are part of the bottom plate 1, which are formed by bending a part of the bottom plate 1. This simplifies the production steps.

[0030] In one embodiment, if Figures 1-8 As shown, the first positioning hole 14 and the second positioning hole 15 are respectively provided on the left and right sides of the bottom plate 1. The first positioning hole 14 is a round hole, and the second positioning hole 15 is a waist-shaped hole. The first positioning hole 14 and the second positioning hole 15 cooperate with each other to realize the rapid positioning and installation of the front cover lock.

[0031] In one embodiment, if Figures 1-8 As shown, the pawl 3 is provided with a hooking portion 33, which includes a through-hole 331 and a fourth stopper 332. A first opening 333 is provided on the side of the through-hole 331, and the fourth stopper 332 is provided on one side of the first opening 333 and is located axially extending from the through-hole 331. One end of the cable passes through the through-hole 331, and the fourth stopper 332 prevents the cable from accidentally moving out of the through-hole 331 through the first opening 333 during use. This structure facilitates assembly of the cable and the pawl 3.

[0032] In one embodiment, if Figures 1-8 As shown, the fourth limiting portion 332 is integrally provided with the through hole 331. That is, the fourth limiting portion 332 is formed by bending.

[0033] When the utility model is used, Figures 1-8As shown, the example of installing the pawl 3 on the left and the ratchet hook 4 on the right is used for explanation. The latch of the front hood presses the ratchet hook 4 to rotate it counterclockwise until the first meshing portion 31 and the second meshing portion 41 engage. When unlocking, the pawl 3 is pulled clockwise by the cable, and the first meshing portion 31 and the second meshing portion 41 are separated. The ratchet hook 4 is rotated clockwise by the restoring force of the reset member 6 until the first meshing portion 41 and the third meshing portion 42 engage. At this time, the hood is in a semi-locked state. The pawl 3 is driven clockwise again to rotate the first meshing portion 41 and the third meshing portion 42, and the third limit portion 32 engages with the third meshing portion 42. At this time, the hood is in a fully unlocked state and the front hood can be opened.

[0034] The base plate 1 of the present invention adopts a radial structure setting, and the punching positions of the rivet holes on the base plate 1 and the cover plate 2 can be selected according to the actual left and right rudder requirements, and then the installation directions of the ratchet hook 4 and the ratchet pawl 3 can be determined, thereby reducing production molds and lowering production costs.

[0035] The above are only preferred embodiments of the present invention and are not intended to limit the scope of implementation of the present invention. Without departing from the spirit and scope of the present invention, modifications or equivalent replacements of the present invention should be included in the scope of protection of the claims of the present invention.

Claims

1. A compact mechanical front cover lock, comprising a base plate, a front cover, a ratchet hook and a pawl, wherein the ratchet hook and the pawl are respectively rotatably arranged between the base plate and the front cover via a reset member, characterized in that: A first limiting portion, a second limiting portion and a guide hole are symmetrically arranged on the base plate, and the first limiting portion is used to limit the rotation range of the pawl; the second limiting portion is used to limit the maximum unlocking position of the ratchet hook; a first meshing portion and a third limiting portion are provided on the pawl, and a second meshing portion and a third meshing portion are provided on the ratchet hook; the first meshing portion, the second meshing portion and the third meshing portion are used to achieve full locking, half locking and full unlocking; when fully locked, the first meshing portion is meshed with the second meshing portion; when half locked, the first meshing portion is meshed with the third meshing portion; when fully unlocked, the third limiting portion is meshed with the third meshing portion; the cable passes through the guide hole and is connected to the pawl.

2. A compact mechanical front cover lock according to claim 1, characterized in that: It also includes a lifting mechanism, which is arranged on the bottom plate and is used to lift the front cover.

3. The compact mechanical front cover lock according to claim 2, characterized in that: The lifting mechanism includes an ejector pin seat, a spring and an ejector pin. A guide cavity is provided on the ejector pin seat. The spring is sleeved on the ejector pin and is arranged in the guide cavity. A guide hole is provided at the bottom of the guide cavity. The guide hole and the ejector pin are slidably matched.

4. The compact mechanical front cover lock according to claim 3, characterized in that: A stop ring is provided at the lower end of the ejector pin.

5. The compact mechanical front cover lock according to claim 1, characterized in that: The reset element is a torsion spring.

6. The compact mechanical front cover lock according to claim 1, characterized in that: The first limiting portion, the second limiting portion and the bottom plate are integrally structured.

7. The compact mechanical front cover lock according to claim 1, characterized in that: A first positioning hole and a second positioning hole are respectively provided on the left and right sides of the bottom plate. The first positioning hole is a round hole, and the second positioning hole is a waist-shaped hole.

8. The compact mechanical front cover lock according to claim 1, characterized in that: The pawl is provided with a hanging portion, which includes a through hole and a fourth limiting portion. A first opening is provided on the side of the through hole, and the fourth limiting portion is provided on one side of the first opening and is located at the axial extension of the through hole.

9. The compact mechanical front cover lock according to claim 8, characterized in that: The fourth limiting portion is integrally provided with the through hole.

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