CN113250549B

CN113250549B - Secondary-opening cover lock and working method thereof

Info

Publication number: CN113250549B
Application number: CN202110526080.4A
Authority: CN
Inventors: 陈刚; 张国庆; 管飞; 韩峰; 秦涛; 杨沫; 王乙坤
Original assignee: Hubei Hangyu Jinggong Technology Co ltd
Current assignee: Hubei Hangyu Jinggong Technology Co ltd
Priority date: 2021-05-13
Filing date: 2021-05-13
Publication date: 2022-09-06
Anticipated expiration: 2041-05-13
Also published as: CN113250549A

Abstract

The invention relates to a secondary-opening cover lock, which comprises a shell, a clamping plate and a clamping claw, wherein the clamping plate and the clamping claw are mutually matched in a secondary locking manner; the clamping plate comprises a clamping plate engaging part; the surface of the clamping plate meshing part is provided with a primary meshing area and a secondary meshing area; the clamping jaw comprises a primary locking engagement part and a secondary locking engagement part; the primary engaging area is in contact fit with the primary locking engaging part; the secondary meshing area is in contact fit with the secondary locking meshing part; through letting the one-level locking meshing portion of jack catch, second grade locking meshing portion mesh respectively with the one-level meshing district of cardboard, these two regions in second grade meshing district respectively, make the two-stage locking become independent contact separately, compare the same position of traditional cardboard and the cooperation of jack catch second grade engagement structure, can reduce half wearing and tearing, promoted the durable number of times and the meshing reliability of locking meshing.

Description

Secondary-opening cover lock and working method thereof

Technical Field

The invention relates to the field of automobile accessory equipment, in particular to a cover cap lock opened for the second time and a working method thereof.

Background

In order to meet the standard requirements of GB 11568-2011 automobile cover (lid) lock system: the hood lock system should have a second locking means or a second hood lock system is mounted on the hood. The traditional hair cover lock is provided with two sets of mechanisms of a main lock and a secondary lock hook, or is solved by using a configuration mode of two locks.

After the traditional primary lock of the front cover lock is unlocked, a user must insert a hand into the hood to operate and unlock the secondary lock and open the hood, the unlocking action needs to be completed at two positions in the process, if an emergency situation, such as nature, occurs, the operation is beyond the reach, the hand of an operator is dirtied, and more humanized service cannot be provided for consumers; the traditional front cover locking and clamping plate is provided with a spring with large return force, the hood ejection effect is realized, the problem of large unlocking sound is caused, and meanwhile, as the functional parts are in a semi-exposed state, the front cover locking and clamping plate has inevitable defects in aspects of dust prevention, water prevention, theft prevention and the like; in addition, the position of connecting the stay wire on the traditional cover lock claw, when the cover is pressed down, the stay wire ball head does not act in the process that the claw is opened by the clamping plate to complete meshing, and the risk that the stay wire is separated from the claw is caused, so that the condition that the lock cannot be opened is caused.

Therefore, it is necessary to provide a secondary-opening cover lock with good installation stability and high safety in use.

Disclosure of Invention

Aiming at the technical problems in the prior art, the invention provides a secondary-opening cover lock which is good in installation stability and high in use safety.

The technical scheme for solving the technical problems is as follows: a cover lock opened for the second time comprises a shell, a clamping plate and a clamping jaw, wherein the clamping plate and the clamping jaw are mutually matched in a two-stage locking manner; the catch plate comprises a catch plate engaging portion; the surface of the clamping plate engaging part is provided with a primary engaging area and a secondary engaging area; the clamping jaw comprises a primary locking engagement part and a secondary locking engagement part; the primary meshing area is in contact fit with the primary locking meshing part; the secondary engagement area is in contact fit with the secondary locking engagement portion.

The invention has the beneficial effects that: through letting these two regions of one-level locking engagement portion, the second grade locking engagement portion of jack catch and the one-level meshing area, the second grade meshing area of cardboard mesh respectively, make the two-stage locking become independent contact separately, compare the same position of traditional cardboard and the cooperation of jack catch second grade engagement structure, can reduce half wearing and tearing, promoted the durable number of times and the meshing reliability of locking meshing.

On the basis of the technical scheme, the invention can be improved as follows.

Further, the chuck plate also comprises a chuck plate stopping part; the jaw further comprises a jaw stop; when the clamping plate engaging part runs between the primary locking engaging part and the secondary locking engaging part, the claw stopping part and the rotating path of the clamping plate stopping part are correspondingly interfered.

The beneficial effect of adopting the further scheme is that: reliable locking action is provided between the secondary engagement of the clamping plate and the clamping jaws, and the reliability of the cover lock is ensured.

On the basis of the technical scheme, the invention can be further improved as follows.

Furthermore, the lower end of the clamping jaw is provided with a stay wire connecting part; the pull wire connecting part rotates towards the direction far away from the clamping plate under the traction of the pull wire; the edge contour of the joint of the clamping jaw and the pull wire is wavy.

The beneficial effect of adopting the above further scheme is: when the claw is knocked open, the protrusion part still prevents the stay wire from being separated from the opening, and the anti-falling function is achieved.

Furthermore, the surface of the shell is provided with a mounting hole in a penetrating way; a hollow riveting shaft is inserted into the mounting hole; the clamping plate and the clamping jaws are respectively sleeved outside different hollow riveting shafts in a rotating manner; a positioning groove is formed in the insertion end of the mounting hole; the tail part of the hollow riveting shaft is embedded in the positioning groove in a matching manner; the tail part of the hollow riveting shaft is of a non-revolving body structure.

The beneficial effect of adopting the further scheme is that: the tail of the hollow riveting shaft is set to be in a non-rotary shape such as a kidney shape, so that the hollow riveting shaft can be limited by means of the positioning groove matched with the embedded part, and the installation stability of the cover lock is improved.

Furthermore, the surface of the shell is also provided with an auxiliary positioning hole in a penetrating way.

The beneficial effect of adopting the further scheme is that: and when the loading is convenient, the auxiliary loading fixture is utilized for positioning, and the loading efficiency is improved.

Further, the device also comprises an ejection assembly; the ejection assembly comprises an ejection column component, a core rod base and a pressure spring; the lower end of the pressure spring is sleeved on the surface of the mandrel base; the ejection column component is connected and arranged at the upper end of the pressure spring; the top of the top column component is provided with a buffer block; the buffer block is attached to the inner wall of the hood.

The beneficial effect of adopting the above further scheme is: the ejection mechanism can reduce the return force of the clamp plate torsion spring, the hood is more flexible when ejected out, the top of the ejection column part is provided with the buffer block, and the sound generated when the lock body is opened and closed is reduced.

On the basis of the technical scheme, the invention can be improved as follows.

Further, a protective cover is arranged at the upper end of the shell in an extending mode; the protective cover protects the top of the clamping jaw.

The beneficial effect of adopting the further scheme is that: the exposed part of the clamping jaw is protected in the cover by arranging the protective cover, so that the clamping jaw is prevented from being stirred by a tool, and an anti-theft effect is achieved.

Further, the protection casing carries out whole or partial sheltering from to the upper end of cardboard.

The beneficial effect of adopting the further scheme is that: the upper exposed part of the clamping plate is shielded, so that the problem of misoperation of closing the engine cover of the lock body in a locking state due to the fact that a worker mistakenly shifts the clamping plate to a locking position in the loading process is avoided, and the lock body is prevented from being damaged;

Furthermore, the protective cover is correspondingly covered outside the pressure spring.

The beneficial effect of adopting the further scheme is that: the two sides of the protective cover are blocked by the exposed springs, so that the dustproof and waterproof effects are achieved, and the springs can be prevented from rusting.

Further, the working method of the cover lock opened for the second time comprises the following steps: when secondary unlocking is carried out, the clamping plate is meshed with the clamping jaws at the full-locking position; pulling a pull wire to drive the clamping jaws to be opened through operation in a vehicle to reach the opening position of the main lock, and then disengaging the primary meshing area of the clamping plate from the primary locking meshing part of the clamping jaws, rotating under the action of a torsion spring of the clamping plate and unlocking the main lock; when the clamping plate rotates upwards, the clamping claw stopping parts are contacted with the clamping plate stopping parts, so that the clamping plate stops rotating; when the pull wire is loosened in the vehicle, the clamping jaw returns under the action of the clamping jaw torsion spring, and when the clamping jaw stopping part is separated from the clamping plate stopping part, the clamping plate is released to continue rotating; the clamping plate continues to move upwards, and the secondary meshing area is meshed with the secondary locking part to reach a secondary locking position; pulling the pull wire to drive the clamping jaw to open through the operation in the vehicle again, and then separating the secondary meshing area of the clamping plate from the secondary locking meshing part, rotating under the action of the torsion spring of the clamping plate, and opening the secondary lock; the clamping plate moves upwards until the limiting position of the clamping plate reaches the full-open position, and meanwhile, the clamping jaws are released in the vehicle and return to the original position, so that the secondary opening process is completed;

under the secondary opening state, the clamping plate is turned back to the secondary locking turning state again by pressing the lock catch downwards.

The beneficial effect of adopting the further scheme is that: the structural design that the one-level locking meshing part and the second-level locking meshing part based on the clamping jaws are meshed with the first-level meshing area and the second-level meshing area of the clamping plate respectively further improves the working reliability of the secondary opening cover lock and reduces the probability of abrasion failure.

Drawings

FIG. 1 is a schematic view of the overall structure of the hood lock of the present invention;

FIG. 2 is a schematic view of the structure of the chuck plate and the jaws of the present invention;

FIG. 3 is a schematic view of a secondary unlocking process;

FIG. 4 is a schematic view of the position of the auxiliary positioning hole;

FIG. 5 is a schematic view of the tail structure of the hollow rivet shaft;

figure 6 is a schematic view of the wavy edge profile of the jaws.

In the drawings, the reference numbers indicate the following list of parts:

1. the clamp plate comprises a clamp plate body 1-1, a clamp plate locking portion 1-2, a clamp plate meshing portion 1-2-1, a primary meshing area 1-2-2, a secondary meshing area 2, a clamping jaw 2-1, a primary locking meshing portion 2-2, a secondary locking meshing portion 2-3, a clamping jaw locking portion 2-4, a stay wire connecting portion 3, a bottom plate 4, a plastic shell 5, a clamp plate torsion spring 6, a clamping jaw torsion spring 7, a top column component 7-1, a buffer block 8, a mandrel base 9, a pressure spring 10, a microswitch 11, a protective cover 12, a hollow rivet shaft 12-1, a positioning groove 13, a lock catch 15 and an auxiliary positioning hole.

Detailed Description

The principles and features of this invention are described below in conjunction with specific embodiments, the examples given are intended to illustrate the invention and are not intended to limit the scope of the invention. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

A cover lock opened for the second time, as shown in figure 2, comprises a shell, a clamping plate 1 and a claw 2 which are mutually matched with each other in a secondary locking way; the clamping plate 1 comprises a clamping plate engaging part 1-2; the surface of the clamping plate engaging part 1-2 is provided with a primary engaging area 1-2-1 and a secondary engaging area 1-2-2; the claw 2 comprises a primary locking engagement part 2-1 and a secondary locking engagement part 2-2; the primary engaging region 1-2-1 is in contact fit with the primary locking engaging part 2-1; the secondary engagement area 1-2-2 is in contact fit with the secondary locking engagement part 2-2;

through letting the one-level locking meshing portion of jack catch, second grade locking meshing portion mesh respectively with the one-level meshing district of cardboard, these two regions in second grade meshing district respectively, make the two-stage locking become independent contact separately, compare the same position of traditional cardboard and the cooperation of jack catch second grade engagement structure, can reduce half wearing and tearing, promoted the durable number of times and the meshing reliability of locking meshing.

The clamping plate 1 further comprises a clamping plate stopping part 1-1; the jaw 2 further comprises a jaw stop 2-3; when the pallet engaging part 1-2 runs between the primary locking engaging part 2-1 and the secondary locking engaging part 2-2, the jaw stopping part 2-3 correspondingly interferes with the rotation path of the pallet stopping part 1-1; through the locking structure that cardboard 1 and jack catch 2's secondary were opened, can guarantee unblock efficiency when considering cover lock reliability.

As shown in fig. 1, a microswitch 10 is further installed in the lock body, the clamping plate 1 and the clamping jaws 2 are initially meshed at a full locking position, when the lock is unlocked, the plastic coating part arranged on the clamping plate 1 touches a contact plate of the microswitch 10, a switch signal is triggered, and therefore the lock is unlocked through alarm devices such as a warning lamp and a buzzer which are in communication connection with the microswitch 10.

As shown in fig. 6, the lower end of the jaw 2 is provided with a stay wire connecting part 2-4; the pull wire connecting part 2-4 rotates towards the direction far away from the clamping plate 1 under the traction of the pull wire; the edge contour of the joint of the claw 2 and the stay wire is wavy and corresponds to a thickened contour part indicated by an arrow in the figure;

because the locking piece formula structure, the cardboard jack catch parcel is in plastic housing and bottom plate, with open the connection of acting as go-between through the sunken molding connection of wrapping plastics on the jack catch, but because push down in-process cardboard can bump out the jack catch motion, this process is opened and is acted as go-between, if the jack catch wraps the part and bumps out one section distance of the part of in-process breaking away from the bulb of acting as go-between at the jack catch, can cause the risk of acting as go-between from the opening of wrapping plastics and deviating from, design into the wave through the opening part of blocking the wrapping plastics, guarantee when the jack catch is bumped out, still have the bulge to prevent to act as go-between from the opening, play the effect of anticreep.

As shown in fig. 1 and 2, the housing is composed of a bottom plate 3 and a plastic shell 4 which are buckled with each other; the surface of the shell is provided with a mounting hole in a penetrating way; a hollow riveting shaft 12 is inserted into the mounting hole; the clamping plate 1 and the clamping jaws 2 are respectively sleeved outside the hollow riveting shafts 12 in a rotating manner; a positioning groove 12-1 is formed in the insertion end of the mounting hole; the tail part of the hollow rivet shaft 12 is embedded in the positioning groove 12-1 in a matching manner; as shown in fig. 5, the tail part of the hollow rivet shaft 12 is of a non-revolving body structure;

because the central trompil of hollow riveting axle plays the effect of loading mounting hole, hollow riveting axle 12 respectively with the cardboard, the coaxial riveting of jack catch, there is the rotation clearance, the bolt passes hollow riveting axle 12 and beats on automobile body mounting nut, there is the riveting axle along with the rotatory condition of bolt fastening direction of rotation in the pretension stage, cause the unable risk of fastening of lock body, in order to prevent that hollow riveting axle 12 takes place to rotate in step and takes place the condition such as pine take place to loosen when twisting the bolt, so set hollow riveting axle 12 afterbody into non-gyration shapes such as waist shape, thereby can realize spacing to hollow riveting axle 12 with the help of inlaying complex positioning groove, promote the installation stability of cover lock.

The surface of the shell is also provided with an auxiliary positioning hole 15 in a penetrating way; have the problem of looking for inaccurate automobile body mounting hole during the lock body loading, influence loading efficiency, as shown in fig. 4, through establishing two auxiliary positioning hole 15 in addition on the lock body, utilize supplementary loading anchor clamps location when making things convenient for the loading, promote loading efficiency.

As shown in fig. 1, the hood lock further includes an ejection assembly; the ejection assembly comprises an ejection column component 7, a core rod base 8 and a pressure spring 9; the lower end of the pressure spring 9 is sleeved on the surface of the core rod base 8; the ejection column component 7 is connected and arranged at the upper end of the pressure spring 9; the top of the top column component 7 is provided with a buffer block 7-1; the buffer block 7-1 is attached to the inner wall of the hood;

the cover lock is characterized in that a push-type ejection mechanism composed of a top column part 7, a core rod base 8 and a pressure spring 9 are coaxially arranged on two sides of the cover lock, the ejection mechanism which works independently can reduce the return force of the clamp plate torsion spring 5, the cover lock is more flexible when being ejected out, and a buffer block 7-1 is arranged on the top of the top column part, so that the sound generated when the lock body is opened and closed is reduced.

The upper end of the shell extends to form a protective cover 11; the protective cover 11 protects the top of the claw 2; because the locking parts of the clamping plate and the clamping jaws are exposed at the upper side of the lock body, the locking parts can be deeply inserted into a gap of the hood from the outside when being exposed too much, and the locking parts are shifted by a tool to unlock, so that the anti-theft performance is reduced;

the exposed part of the clamping jaw is protected in the cover by arranging the protective cover, so that the clamping jaw can be prevented from being pulled by a tool.

The protective cover 11 completely or partially shields the upper end of the clamping plate 1; the upper exposed part of the clamping plate is shielded, so that the problem of misoperation of closing the engine cover of the lock body in a locking state due to the fact that a worker mistakenly shifts the clamping plate to a locking position in the loading process is avoided, and the lock body is prevented from being damaged;

the protective cover 11 is correspondingly covered outside the pressure spring 9; the two sides of the protective cover are blocked by the exposed springs, so that the dustproof and waterproof effects are achieved, and the springs can be prevented from rusting.

In addition, as shown in fig. 3, a schematic diagram of a secondary unlocking process is shown; as shown in part (a) of the figure, the clamping plate 1 is engaged with the jaws 2 in the full locking position; as part (b) in the figure is in a main lock opening state, the pulling wire is operated and pulled in the vehicle to drive the claws 2 to open and reach a main lock opening position, at the moment, the primary meshing area 1-2-1 of the clamping plate 1 is separated from the primary locking meshing part 2-1 of the claws 2, and the main lock is unlocked by rotating under the action of the clamping plate torsion spring 5; as shown in part (c) of the figure: when the clamping plate 1 rotates upwards, the clamping claw stopping parts 2-3 are contacted with the clamping plate stopping parts 1-1, so that the clamping plate 1 stops rotating; as shown in part (d) of the figure, the stop release threshold state: when the pull wire is loosened in the bicycle, the jaw 2 returns under the action of the jaw torsion spring 6, and when the jaw stopping part 2-3 is separated from the clamping plate stopping part 1-1, the clamping plate 1 is released to continue rotating; the secondary lock position is shown as part (e) of the figure: the clamping plate 1 continues to move upwards, and the secondary meshing area 1-2-2 is meshed with the secondary locking part 2-2 to reach a secondary locking position; as shown in part (f) of the figure, the two-stage lock is in an unlocked state: pulling the pull wire to drive the clamping jaws 2 to be opened again through operation in the vehicle, and then disengaging the secondary meshing area 1-2-2 of the clamping plate 1 from the secondary locking meshing part 2-2, rotating under the action of the clamping plate torsion spring 5 and opening the secondary lock; as shown in the figure (g), the fully open position: cardboard 1 upward movement reaches full open position until the spacing department of cardboard, releases jack catch 2 in the car simultaneously, and the jack catch return accomplishes the secondary and opens the process.

And in the secondary opening state, the clamping plate is converted back to the secondary locking state again by pressing the lock catch 13 downwards.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims

1. A secondary opening cover lock is characterized in that: comprises a shell, a clamping plate (1) and a clamping jaw (2) which are mutually matched in a two-stage locking manner; the clamping plate (1) comprises a clamping plate engaging part (1-2); the surface of the clamping plate engaging part (1-2) is provided with a primary engaging area (1-2-1) and a secondary engaging area (1-2-2); the claw (2) comprises a primary locking meshing part (2-1) and a secondary locking meshing part (2-2); the primary meshing area (1-2-1) is in contact fit with the primary locking meshing part (2-1);

the secondary engagement area (1-2-2) is in contact fit with the secondary locking engagement part (2-2);

the clamping plate (1) further comprises a clamping plate stopping part (1-1); the jaw (2) further comprises a jaw stop (2-3); when the card board engaging part (1-2) runs between the primary locking engaging part (2-1) and the secondary locking engaging part (2-2), the jaw stopping part (2-3) correspondingly interferes with the rotation path of the card board stopping part (1-1).

2. The secondary opening cover lock of claim 1, wherein: the lower end of the claw (2) is provided with a stay wire connecting part (2-4); the pull wire connecting part (2-4) rotates towards the direction far away from the clamping plate (1) under the traction of the pull wire; the edge contour of the joint of the clamping jaw (2) and the stay wire is wavy.

3. The twice-open cover lock of claim 1, wherein: the surface of the shell is provided with a mounting hole in a penetrating way; a hollow riveting shaft (12) is inserted into the mounting hole; the clamping plate (1) and the clamping jaws (2) are respectively and rotatably sleeved outside different hollow riveting shafts (12); a positioning groove (12-1) is arranged at the insertion end of the mounting hole; the tail part of the hollow riveting shaft (12) is embedded in the positioning groove (12-1) in a matching manner; the tail part of the hollow rivet shaft (12) is of a non-revolving body structure.

4. The twice-open cover lock of claim 3, wherein: and the surface of the shell is also provided with an auxiliary positioning hole (15) in a penetrating way.

5. The twice-open cover lock of claim 1, wherein: the device also comprises an ejection assembly; the ejection assembly comprises an ejection column component (7), a core rod base (8) and a pressure spring (9); the lower end of the pressure spring (9) is sleeved on the surface of the core rod base (8); the ejection column component (7) is connected and arranged at the upper end of the pressure spring (9); the top of the top column component (7) is provided with a buffer block (7-1); the buffer block (7-1) is attached to the inner wall of the hood.

6. The secondary opening cover lock of claim 5, wherein: a protective cover (11) extends from the upper end of the shell; the protective cover (11) protects the top of the clamping jaw (2) from the inside.

7. The twice-open lid lock of claim 6, wherein: the protective cover (11) completely or partially shields the upper end of the clamping plate (1).

8. The twice-open lid lock of claim 6, wherein: the protective cover (11) is correspondingly covered outside the pressure spring (9).

9. The method of operating a secondary opening cover lock according to any of claims 1 to 8, wherein: when secondary unlocking is carried out, the clamping plate (1) is meshed with the clamping jaws (2) at the full-locking position; pulling a pull wire to drive the clamping jaw (2) to be opened by operating in a vehicle to reach a main lock opening position, wherein the primary meshing area (1-2-1) of the clamping plate (1) is disengaged from the primary locking meshing part (2-1) of the clamping jaw (2), and the main lock is unlocked by rotating under the action of the clamping plate torsion spring (5); when the clamping plate (1) rotates upwards, the clamping claw stopping parts (2-3) are contacted with the clamping plate stopping parts (1-1) to stop the clamping plate (1) from rotating; when the pull wire is loosened in the vehicle, the jaw (2) returns under the action of the jaw torsion spring (6), and when the jaw stopping part (2-3) is separated from the clamping plate stopping part (1-1), the clamping plate (1) is released to continue rotating; the clamping plate (1) continues to move upwards, and the secondary meshing area (1-2-2) is meshed with the secondary locking part (2-2) to reach a secondary locking position; pulling the pull wire to drive the clamping jaws (2) to open again through the operation in the vehicle, and then separating the secondary meshing area (1-2-2) of the clamping plate (1) from the secondary locking meshing part (2-2), rotating under the action of the clamping plate torsion spring (5), and opening the secondary lock; the clamping plate (1) moves upwards until the limiting position of the clamping plate reaches the full-opening position, and meanwhile, the clamping jaws (2) are released in the vehicle and return to the original position to complete the secondary opening process;

under the secondary opening state, the clamping plate is converted back to the secondary locking state again by pressing the lock catch (13).