CN218563339U - Double-pull front cover lock system - Google Patents

Abstract

The utility model provides a two front cover lock systems that draw, including locking piece body and latch hook, the locking piece body includes jam plate, ratchet and pawl, the ratchet rotates through the ratchet coil spring to be connected on the jam plate, the pawl rotates through the pawl coil spring to be connected on the jam plate, be equipped with the locking pawl on the pawl, be equipped with first joint end and second joint end on the ratchet, first joint end and second joint end respectively under different corners with the locking pawl meshing; the latch hook has fixed connection's hook portion and fixed part, hook portion has the connect the through-hole that link up its thickness along first direction, the fixed part includes fixed baseplate, be equipped with on the fixed baseplate and link up its thickness along the second direction one or more waist type holes, first direction perpendicular to second direction. The fixing part of the lock hook is provided with the waist-shaped hole, so that the lock hook can be conveniently positioned and adjusted on the vehicle body along the first direction.

Description

Double-pull front cover lock system

Technical Field

The utility model relates to a vehicle protecgulum control structure technical field, concretely relates to two front cover lock systems that draw.

Background

Current car protecgulum lock system needs the user to operate the lock system in two positions, just can open the protecgulum, is respectively at car driver side and locomotive position. And the secondary unlocking mechanism at the head position is hidden under the front cover (the position is uncertain, and the secondary unlocking mechanism is not always in Y0 and the opening direction is also Y and Z directions), a user has to perform blind operation or stoop operation to find a small buckle, and dust and grease are often adhered to one hand when the front cover is opened. In addition, when the system is started for the second time at the current locomotive position, the operation difficulty is further increased after the system is blown snow and frozen in winter.

In order to solve the problem, chinese patent document CN211448194U provides a double-pull opening type automobile front hood lock, which adopts a ratchet and pawl design with two-stage engagement mechanisms to realize a dual-purpose and double-pull opening function, so that secondary unlocking can be performed through the same two-time operation, and the operation difficulty of unlocking the front hood lock is reduced.

SUMMERY OF THE UTILITY MODEL

In view of the above problem, the utility model provides a two front cover lock systems that draw is provided on prior art basis, its front cover lock system that makes can be convenient and fast opened under the prerequisite that satisfies vehicle design safety requirement through unique structural design the utility model discloses an in the preferred design provide a two front cover lock systems that draw two locks, it can be through the process of opening and close of adjusting two lock bodies simultaneously at one operation. The utility model aims at realizing through the following technical scheme:

the utility model provides a two front cover locking systems that draw, it includes locking piece body and latch hook, the locking piece body includes jam plate, ratchet and pawl, the ratchet rotates through the ratchet coil spring to be connected on the jam plate, the pawl rotates through the pawl coil spring to be connected on the jam plate, be equipped with the locking pawl on the pawl, be equipped with first joint end and second joint end on the ratchet, first joint end and second joint end respectively under different corners with the meshing of locking pawl; the lock hook is provided with a hook part and a fixing part which are fixedly connected, the hook part is provided with a connecting through hole penetrating through the thickness of the hook part along a first direction, the fixing part comprises a fixing bottom plate, one or more waist-shaped holes penetrating through the thickness of the fixing bottom plate along a second direction are arranged on the fixing bottom plate, and the first direction is perpendicular to the second direction. Usually, a rotating claw is arranged on the pawl, the rotating claw of the pawl is connected to an operation end of a cab through a wire drawing assembly, the operation end pulls the wire drawing assembly to drive the rotating claw to rotate so as to drive the pawl to rotate around the axis of the pawl, so that the stopping claw is clamped with different clamping ends of a ratchet wheel, unlocking of the ratchet wheel and the pawl is achieved, a lock hook is separated from the ratchet wheel and the pawl, and unlocking of a front cover of an automobile is achieved.

Further, the latch hook is integrated into one piece's sheet metal structure, PMKD includes the T template, the T template has horizontal extension and longitudinal extension, horizontal extension and longitudinal extension are equipped with a waist type hole along the first direction extension respectively, horizontal extension has the section of spending that extends beyond longitudinal extension width both sides in the third direction, hook portion adopts the U type hook, the both ends of U type hook respectively with two sections of spending of horizontal extension are connected for L type structure.

Or, hook portion also can adopt the type of calligraphy hook, the type of calligraphy hook is equipped with the positioning bolt who adjusts along the second direction extension in its one side that is close to PMKD, the fixed part includes PMKD and fixed casing, PMKD is last be fixed with positioning bolt looks adaptation's fixation nut, fixed casing will the type of calligraphy hook is spacing fixed with PMKD.

Further, the front cover locking system further comprises a microswitch, the microswitch is fixed on the locking plate, an induction arm of the microswitch is abutted to the outer edge of the ratchet wheel, and the microswitch is electrically connected to a whole vehicle control system of the vehicle.

Further, the front cover locking system comprises two locking piece bodies and two locking hooks, the two locking piece bodies comprise a first locking piece body and a second locking piece body, the locking hooks comprise a first locking hook and a second locking hook which are respectively matched with the first locking piece body and the second locking piece body, and the first locking piece body and the second locking piece body are connected in series through the wire drawing system.

Furthermore, the wire drawing system comprises a wire drawing body, a first clamp and a second clamp, wherein the first clamp and the second clamp are arranged on the wire drawing body, the first clamp is fixedly connected with the rotating claw of the first locking block, and the second clamp is fixedly connected with the rotating claw of the second locking block.

Further, the wire drawing system still has the length adjustment ware, the length adjustment ware includes adjusting bolt and adjusting nut, the wire drawing body has first section and second section between first checkpost and second checkpost, adjusting bolt sets up the first near-end that is close to the second section at the first section of wire drawing body, adjusting nut sets up the second near-end that is close to the first section at the second section of wire drawing body, adjusting bolt and adjusting nut pass through threaded connection and fix.

Further, adjusting bolt has the first hole that the axial link up, adjusting nut has the second hole that the axial link up, and first hole and second hole connection to first checkpost and second checkpost are run through respectively to the first section and the second section of wire drawing body, and the first section and the adjusting bolt package of wire drawing body are moulded and are connected, and the second section and the adjusting nut package of wire drawing body are moulded and are connected.

Further, the adjusting bolt is provided with a bolt base and a seat part, and the radial outer peripheral size of the seat part is larger than that of the bolt base; the adjusting nut is provided with a nut base portion and an extending portion extending axially beyond the outer end face of the nut base portion, the inner circumferential radial size of the extending portion in surrounding coating is not smaller than the outer circumferential radial size of the seat portion of the adjusting bolt, the extending portion is provided with clamping teeth protruding inwards in the radial direction, and the seat portion of the adjusting bolt is provided with a locking structure matched with the clamping teeth.

Further, the stop structure includes a plurality of inner grooves extending axially in an outer wall of the seat.

The beneficial effects of the utility model reside in that:

(1) The fixing part of the lock hook is provided with the waist-shaped hole, so that the lock hook can be conveniently positioned and adjusted on the vehicle body along the first direction;

(2) The microswitch capable of sensing the action of the ratchet wheel is arranged on the lock block body and is electrically connected to the whole vehicle control system, so that a driver can know the locking and unlocking states of the front cover in time, and the action of the front cover lock is convenient to confirm and control;

(3) Two locking piece bodies are connected through a wire drawing system connected with a first clamp and a second clamp in series, so that opening and closing of two front cover locks can be controlled simultaneously through one-time operation.

Drawings

Fig. 1 is a schematic structural view of a front lock plate viewing angle of a front cover lock system of the present invention;

fig. 2 is a schematic structural view of a rear lock plate viewing angle of the front cover lock system of the present invention;

fig. 3 is a schematic view of a wire drawing system in embodiment 2 of the present invention;

FIG. 4 is an enlarged view of portion A of FIG. 3;

FIG. 5 is an exploded view of the detail of FIG. 4;

fig. 6a is a schematic view of a latch hook structure adopted in the double-pull single-lock structure of the present invention;

FIG. 6b is a schematic front view of FIG. 6 a;

FIG. 6c is a schematic side view of FIG. 6 a;

fig. 7a is a schematic view of a latch hook structure adopted by the double-pull double-lock structure of the present invention;

FIG. 7b is a schematic front view of FIG. 7 a;

fig. 7c is a schematic view of fig. 7a with the stationary housing removed.

Detailed Description

The preferred embodiments of the present invention will be described below with reference to the accompanying drawings.

It should be noted that in the following description, the terms "upper", "lower", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, in the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

For convenience of description, the first direction is a y direction, the second direction is a z direction, and the third direction is an x direction in the following description.

Example 1:

the embodiment provides a double-pull front cover lock system, which is a double-pull single-lock structure and comprises a lock block body and a lock hook, wherein the structure of the lock block body is similar to that of a double-pull open type automobile front cover lock provided by CN211448194U, the lock block body comprises a lock plate, a ratchet 220 and a pawl 210, the lock plate comprises a front lock plate 110, a rear lock plate 120 and a clamping plate 230, a pawl sleeve 211 and a ratchet sleeve 221 which are parallel to each other in axis are arranged between the front lock plate 110 and the rear lock plate 120, as shown in fig. 1 and fig. 2, the ratchet 220 is rotatably connected to the lock plate through a ratchet coil spring 224 which is sleeved on the ratchet sleeve 221, the pawl 210 is rotatably connected to the lock plate through a pawl coil spring 214 which is sleeved on the pawl sleeve 211, the clamping plate 230 is clamped on the ratchet sleeve and the pawl sleeve and arranged between the front lock plate and the rear lock plate to realize the limiting and fixing of the ratchet, the ratchet clamp spring, the ratchet and the ratchet pawl, the pawl 210 is provided with a locking pawl 212 and a rotating claw 213, the ratchet 220 is provided with a first clamping end and a second clamping end 222 and a second clamping end 223 which are respectively meshed with a second clamping corner.

In a preferred embodiment, the pawl 210 is connected to the cab handle end via a pull assembly 300.

In a preferred embodiment, the front cover locking system further comprises a microswitch 400, the microswitch 400 is fixed on the locking plate, an induction arm 402 of the microswitch is abutted to the outer edge of the ratchet wheel, and the microswitch 400 is electrically connected to a whole vehicle control system of the vehicle through a wiring harness 401.

In a preferred embodiment, the latch hook of the double-pull single-lock structure is the latch hook 500 shown in fig. 6a to 6c, as shown in fig. 6a to 6c, the latch hook 500 has a hook portion 510 and a fixing portion, the hook portion 510 is a U-shaped hook structure, and the hook portion 510 has a connecting through hole 511 penetrating through the thickness thereof along the y direction; the fixing portion comprises a fixing base plate 520, and one or more (2 shown in the figure) waist-shaped holes penetrating the thickness of the fixing base plate along the z direction are formed in the fixing base plate so as to facilitate y-direction adjustment of the position of the lock hook relative to the vehicle body during installation and fixation. The y direction is perpendicular to the z direction, and typically when mounted to a vehicle, the y direction refers to the vehicle width (left-right) direction, the z direction refers to the height direction, and the x direction is the vehicle length (front-rear) direction. In the illustrated embodiment, the latch hook 500 is integrally formed as a sheet metal structure, the fixing base plate 520 is a T-shaped plate, the T-shaped plate has a lateral extension 521 and a longitudinal extension 522, the lateral extension 521 and the longitudinal extension 522 are respectively provided with a waist-shaped hole extending along the y-direction, the lateral extension has a first branch section 521a and a second branch section 521b extending in the x-direction beyond two sides of the width of the longitudinal extension, and two ends of a U-shaped hook of the hook portion are respectively connected with the first branch section 521a and the second branch section 521b to form an L-shaped structure, as shown in fig. 6a and 6 b.

In the illustrated embodiment, the T-shaped plate forming the fixed base plate 520 further has a gradually shrinking triangle-like section on the side of the lateral extension 521 away from the longitudinal extension, and one of the two kidney-shaped holes 522 is disposed on the triangle-like section, so that the overall structure of the locking hook 500 is more balanced and practical.

Example 2:

the embodiment provides a two front cover lock systems that draw of two lock structures, and its rationale is the same with embodiment 1, and the difference lies in, the front cover lock system of this embodiment includes two locking piece bodies and two latch hooks, two locking piece bodies include first locking piece body and second locking piece body, the latch hook includes first latch hook and the second latch hook of first locking piece body of adaptation and second locking piece body respectively, first locking piece body and second locking piece body concatenate through wire drawing system 300.

As shown in fig. 3, the wire drawing system 300 includes a wire drawing body 301, and a first clip 311 and a second clip 312 disposed on the wire drawing body, wherein the first clip 311 is fixedly connected to the rotating claw of the first lock block, and the second clip is fixedly connected to the rotating claw of the second lock block.

In the illustrated embodiment, the drawing system 300 further comprises a length adjuster 320, the length adjuster 320 comprises an adjusting bolt 321 and an adjusting nut 322, the drawing body 301 has a first section 301a and a second section 301b between a first catch 311 and a second catch 312, the adjusting bolt 321 is disposed at a first proximal end of the first section 301a of the drawing body near the second section, the adjusting nut 322 is disposed at a second proximal end of the second section 301b of the drawing body near the first section, and the adjusting bolt 321 and the adjusting nut 322 are fixed by an external thread disposed on the adjusting bolt 321 and an internal thread disposed on the adjusting nut in a fitting threaded connection.

In the illustrated embodiment, the adjusting bolt 321 has a bolt base 321a and a seat 321b, an external thread engaged with the adjusting nut is disposed on the outer circumferential wall of the bolt base 321a, and the radial outer circumferential dimension of the seat 321b is greater than that of the bolt base 321 a; the adjusting nut 322 has a nut base 322m and an extending portion 322b extending axially beyond an outer end surface of the nut base 322m, an internal thread 322a is formed inside the nut base 322m, as shown in fig. 5, an inner circumferential radial dimension surrounded by the extending portion 322b is not smaller than an outer circumferential radial dimension of the seat portion 321b of the adjusting bolt, the extending portion 322b is provided with a rib-shaped snap tooth 322c protruding radially inward and extending axially along an inner wall of the extending portion and/or a hook-shaped snap tooth 322d hooking inward at an end of the extending portion, the seat portion of the adjusting bolt is provided with a stopper structure adapted to the snap tooth 322c, for example, a plurality of inner grooves 321c extending axially on an outer wall of the seat portion 321b are adopted as the stopper structure, and when the base 321a of the adjusting bolt and the adjusting nut 322 are screwed in place, the rib-shaped snap tooth 322c and/or the hook-shaped snap tooth 322d are engaged in the inner groove 321c, so that the position-limiting fixation can be achieved, and the adjusting bolt and the adjusting nut are prevented from being disengaged. The direct wire drawing tensioning degree of the two locks is adjusted by adjusting the condition that the clamping teeth are screwed into the axial position of the adjusting bolt seat part along the axial direction of the wire drawing.

In the illustrated embodiment, the adjusting screw has a spring washer 321d attached to its screw base 321a towards the outer end of the adjusting nut to provide some cushioning at its attachment.

In a preferred embodiment, the adjusting bolt has a first inner hole which is axially communicated, the adjusting nut has a second inner hole (i.e. a hole which forms an internal thread) which is axially communicated, the first section 301a and the second section 301b of the wire drawing body respectively penetrate through the first inner hole and the second inner hole to be connected to the first clamp 311 and the second clamp 312, the first section 301a of the wire drawing body is connected with the adjusting bolt in a plastic-coated mode, and the second section 301b of the wire drawing body is connected with the adjusting nut in a plastic-coated mode.

In a preferred embodiment, a microswitch is respectively arranged on the two lock block bodies so as to respectively prompt the locking states of the two lock hooks.

In a preferred embodiment, in order to ensure that two lock hooks respectively matched with two lock block bodies can be adjusted in place, the lock hook of the double-pull double-lock system preferably adopts the structure of the lock hook 600 shown in fig. 7a, as shown in fig. 7a, the lock hook 600 has a hook portion 610 and a fixing portion, the hook portion 610 is provided with a through hole 612 penetrating through the thickness thereof along the x direction, preferably, the hook portion 610 comprises a square hook formed by curling a plate material or a bar material, the side of the square hook close to the fixing bottom plate is provided with a positioning bolt 611 adjusting the extension along the z direction, the fixing portion comprises a fixing bottom plate 620 and a fixing shell 630, as shown in fig. 7a, a fixing nut 621 matched with the positioning bolt 611 is fixed on the fixing bottom plate 620 by welding or the like, two kidney-shaped holes 622 penetrating through the thickness thereof along the z direction are opened on the fixing bottom plate 620, the length of the waist-shaped hole 622 extends along the y direction, when the lock hook 600 is installed, the y direction position of the lock hook relative to a vehicle body can be adjusted through the waist-shaped hole 622, the height of the lock hook in the z direction can be adjusted by adjusting the depth of the positioning bolt 611 screwed into the fixing nut 621, therefore, the y direction and the z direction adjustment relative to the vehicle body can be realized by the lock hook, after the relative position relationship between the hook part 610 and the fixing part is determined by adjustment, the square hook and the fixing bottom plate are limited and fixed by the fixing shell 630, here, the fixing shell 630 can adopt a plastic shell which surrounds the hook part 610 and one end of which is fixed with the fixing bottom plate 610, and can also adopt other buckling structures or similar modes to fix the hook part as long as the hook part 610 can be ensured not to loose and rotate.

With respect to the lock hook 500 and the lock hook 600 adapted to the double-pull single-lock structure in the above embodiments 1 and 2, the axial directions of the connecting through hole 511 and the connecting through hole 612 are not consistent with the angle of the longitudinal extension direction of the kidney-shaped hole on the fixed base plate, specifically, in the illustrated embodiment, the axial direction of the connecting through hole 511 is consistent with the longitudinal direction of the kidney-shaped hole 522 on the fixed base plate 520, and both directions are y-direction; and the axial direction x of the connecting through hole 612 is perpendicular to the length extending direction y of the waist-shaped hole 622 on the fixed base plate 620. The reason for this difference is mainly considered that in practice, the front cover lock of the double-pull single-lock structure is usually fixed at the vehicle front center position, and the axial direction of the connecting through hole 511 thereof coincides with the y-direction adjustment direction of the latch hook 500 as a whole; two locking blocks in the front cover lock of the double-pull double-lock structure are respectively fixed at the rear side positions of two headlights of the vehicle, and at the moment, the axial direction of the connecting through hole 612 is vertical to the y-direction adjusting direction of the whole lock hook 600. In other embodiments, the two lock bodies can be interchanged to a certain extent, and the relative positions of the extending direction of the kidney-shaped hole and the axial direction of the connecting through hole are adjusted when in use.

Finally, it is noted that the above preferred embodiments illustrate rather than limit the invention, and that, although the invention has been described in detail with reference to the above preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the scope of the invention as defined by the appended claims; the dimensions shown in the figures and the embodiments are not related to specific physical objects, and are not used for limiting the protection scope of the present invention, and the physical dimensions can be selected and changed according to actual needs.

Claims (10)

1. A double-pull front cover locking system is characterized by comprising a locking block body and a locking hook, wherein the locking block body comprises a locking plate, a ratchet wheel and a pawl, the ratchet wheel is rotatably connected to the locking plate through a ratchet coil spring, the pawl is rotatably connected to the locking plate through a pawl coil spring, the pawl is provided with a locking pawl, the ratchet wheel is provided with a first clamping end and a second clamping end, and the first clamping end and the second clamping end are respectively meshed with the locking pawl under different rotation angles; the latch hook has fixed connection's hook portion and fixed part, hook portion has the connect the through-hole that link up its thickness along first direction, the fixed part includes fixed baseplate, be equipped with on the fixed baseplate and link up its thickness along the second direction one or more waist type holes, first direction perpendicular to second direction.

2. A lock system of a double-pull front cover as claimed in claim 1, wherein the locking hook is an integrally formed sheet metal structure, the fixing base plate comprises a T-shaped plate, the T-shaped plate has a transverse extension part and a longitudinal extension part, the transverse extension part and the longitudinal extension part are respectively provided with a waist-shaped hole extending along a first direction, the transverse extension part has a branch section extending beyond two sides of the width of the longitudinal extension part in a third direction, the hook part is a U-shaped hook, and two ends of the U-shaped hook are respectively connected with two branch sections of the transverse extension part to form an L-shaped structure.

3. The lock system of claim 1, wherein the hook portion is a square hook, the square hook is provided with a positioning bolt on a side thereof close to the fixing base plate for adjusting the extension in the second direction, the fixing portion comprises a fixing base plate and a fixing housing, a fixing nut adapted to the positioning bolt is fixed on the fixing base plate, and the fixing housing fixes the square hook and the fixing base plate in a limiting manner.

4. A double pull front cover lock system according to claim 3, wherein said front cover lock system comprises two lock block bodies and two lock hooks, said two lock block bodies comprising a first lock block body and a second lock block body, said lock hooks comprising a first lock hook and a second lock hook adapted to the first lock block body and the second lock block body, respectively, said first lock block body and said second lock block body being connected in series by the wire drawing system.

5. The double-pull front cover lock system as claimed in claim 4, wherein the wire drawing system comprises a wire drawing body and a first clip and a second clip arranged on the wire drawing body, the first clip is fixedly connected with the rotating claw of the first lock block, and the second clip is fixedly connected with the rotating claw of the second lock block.

6. The dual pull front cover lock system according to claim 5, wherein the pull system further comprises a length adjuster, the length adjuster comprises an adjusting bolt and an adjusting nut, the pull body has a first section and a second section between the first clip and the second clip, the adjusting bolt is disposed at a first proximal end of the first section of the pull body close to the second section, the adjusting nut is disposed at a second proximal end of the second section of the pull body close to the first section, and the adjusting bolt and the adjusting nut are fixed by a threaded connection.

7. The lock system of claim 6, wherein the adjusting bolt has a first inner hole which is axially through, the adjusting nut has a second inner hole which is axially through, the first section and the second section of the wire drawing body respectively penetrate through the first inner hole and the second inner hole to be connected to the first clamp and the second clamp, the first section of the wire drawing body is connected with the adjusting bolt in a plastic wrapping mode, and the second section of the wire drawing body is connected with the adjusting nut in a plastic wrapping mode.

8. A double pull front cover lock system according to claim 7 wherein said adjuster bolt has a bolt base and a seat portion, said seat portion having a radially outer peripheral dimension greater than a radially outer peripheral dimension of said bolt base; the adjusting nut is provided with a nut base portion and an extending portion extending axially beyond the outer end face of the nut base portion, the inner circumferential radial size of the extending portion in surrounding coating is not smaller than the outer circumferential radial size of the seat portion of the adjusting bolt, the extending portion is provided with clamping teeth protruding inwards in the radial direction, and the seat portion of the adjusting bolt is provided with a locking structure matched with the clamping teeth.

9. A double pull front cover lock system according to claim 8 wherein said stop structure comprises a plurality of internal grooves extending axially in an outer wall of said seat portion.

10. The double-pull front cover lock system according to any one of claims 1 to 9, further comprising a microswitch, wherein the microswitch is fixed on the lock plate, an induction arm of the microswitch abuts against the outer edge of the ratchet wheel, and the microswitch is electrically connected to a vehicle control system of a vehicle.

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