Aluminum alloy lock of breast board carriage

Abstract

The utility model discloses an aluminum alloy lockset of a breast board carriage, which comprises an aluminum alloy side plate lockset seat, a lockset groove arranged in the aluminum alloy side plate lockset seat, a handle hinged in the aluminum alloy side plate lockset seat, a connecting rod arm hinged on the handle, and a screw spring bolt hinged with the connecting rod arm, the handle is provided with a clip lock catch which is installed in a hinged mode through a lock catch rotating rivet, and the lock catch rotating rivet is sleeved with a lock catch spring. A lock catch fixing rivet which is movably locked and matched with the clip lock catch is arranged in the lock groove; the clip lock catch is provided with a buckle hook opening capable of buckling the lock catch fixing rivet and a clip pull-up right-angle part capable of enabling the clip lock catch to rotate along the lock catch rotating rivet by applying force with hands. And the handle is also provided with a handle opening which is easy for fingers to penetrate and the lock catch part of the clip to be exposed. The aluminum alloy lock has the advantages of being light in weight, good in corrosion resistance, small in wind resistance, good in safety, attractive in appearance, convenient to install, good in durability and the like.

Description

Technical Field

[0001] The utility model relates to the technical field of a lock structure, in particular to an aluminum alloy lock for a tailgate carriage. Background Art

[0002] Currently, achieving lightweight vehicle design requires reducing the weight of the locks used in vehicle cabins. The aluminum alloy cabins currently in use are derived from steel structures, and most retain traditional steel cabin components. Consequently, the traditional locks on the sidewalls have also been retained. Consequently, the majority of locks used on aluminum alloy sidewalls are made of steel, which is heavier than aluminum, hindering vehicle lightweighting.

[0003] In addition, in addition to the weight problem mentioned above, the locks for aluminum alloy carriage railings currently on the market also have the following problems: (1) The material of the locks is mainly steel, and its surface treatment method is generally galvanized. Its corrosion resistance can theoretically only reach 72 hours of neutral salt spray test. In actual use, due to the frequent friction between the moving parts of the lock, the protective coating on the surface of the lock will be damaged, and the corrosion resistance is not good. Consumers have to replace the locks every 2-3 years, resulting in short service life, poor performance, and imperfect appearance. (2) Most of the locks for aluminum alloy carriage railings currently on the market are convex, and the lock protrudes from the railing by about 30mm, which has a certain amount of wind resistance. (3) Because the locks are basically convex, they create a sense of disconnection and separation when installed on the carriage railing, that is, they are not in a sense of integration, resulting in poor consistency between the carriage railing and the lock, which is unsightly and low-grade. (4) The locks for aluminum alloy carriage railings currently on the market all use a lock buckle + lock hook method for locking, and a separate safety pin is required. Since the lock is protruding, it may scrape against other objects during driving, causing the lock to open or the safety pin to fall off, posing a certain safety hazard.

[0004] Finally, in response to the above problem (3), some people have also developed and designed some concealed locks for tailgate compartment locks to achieve a non-protruding structure. However, the traditional non-protruding structure is only for achieving the non-protruding function of the lock body and handle, and there is no corresponding structure to achieve the locking function in the above (4) that the lock cannot be accidentally opened once locked, and still fails to achieve a good safety effect.

[0005] In summary, existing locks for carriage railings suffer from issues such as insufficient corrosion resistance, galvanized surface coatings with limited protective properties, protrusions from the railings, wind resistance, and insufficient security. There is a need to improve the existing lock structure for aluminum alloy railing carriages to optimize its performance. Summary of the Invention

[0006] The purpose of this utility model is to overcome the shortcomings of the above-mentioned prior art and provide an aluminum alloy lock for a tailgate carriage, which is composed of an aluminum alloy structure and an embedded design, with low wind resistance. It has more advantages in terms of lightweighting of automobiles. In order to solve the problem of protective coating of the lock, the surface treatment method of the aluminum alloy lock is electrophoretic powder spraying, and the corrosion resistance of the powder spray coating reaches more than 480 hours in the neutral salt spray test, with better anti-corrosion performance. In addition, the slider, clip lock and other frequently sliding accessories of the lock are nylon plastic parts. Since the hardness of nylon plastic is lower than that of metal parts, the motion is transmitted through the nylon plastic parts, which can avoid direct contact and mutual friction between aluminum alloy accessories, which may cause the surface coating to fall off and the hardware to wear, thereby greatly increasing the service life and wear resistance of the lock. Since the lock is designed with an embedded hidden handle, after the lock is installed with the side of the tailgate compartment through 4-6 rivets, the lock and the side of the tailgate compartment are in a flat and compact state, that is, the lock and the side of the tailgate compartment are integrated into one, with better consistency, more beautiful appearance, practicality, and high market recognition; and the lock has a simple structure. After being installed with the side of the tailgate compartment through rivets, maintenance and replacement only require the rivets to be removed and the lock replaced as a whole. Finally, in order to address the problem that traditional locks are easy to open, the aluminum alloy lock is equipped with a lock buckle fixing rivet and a clip lock buckle on the handle to form a lock match, thus forming a safety buckle structure. Only when the clip lock buckle is completely separated from the lock buckle fixing rivet to form an open state, can the handle be fully pulled out to unlock and the tailgate be opened, which can meet safety requirements.

[0007] The technical solution adopted by the utility model to solve the technical problem is as follows: an aluminum alloy lock for a tailgate carriage, comprising an aluminum alloy side panel lock seat that is movably matched and locked with the side panel of the tailgate carriage, a lock slot provided in the aluminum alloy side panel lock seat, a handle hinged in the aluminum alloy side panel lock seat and rotatably embedded in the lock slot, a connecting rod arm hinged on the handle and rotatably embedded in the lock slot and embedded in the handle, and a screw lock tongue hingedly mounted on the connecting rod arm and placed in the lock slot for linear sliding. The handle is provided with a clip lock formed by a lock rotating rivet, and a lock spring is covered on the lock rotating rivet; a lock fixing rivet is provided in the lock groove and is installed to form a movable locking fit with the clip lock; the clip lock is provided with a clip hook mouth that can be used to clip the lock fixing rivet and a clip pulling up right angle portion that can be used to apply force by hand to rotate the clip lock along the lock rotating rivet; the handle is also provided with a handle opening that is easy for fingers to penetrate and the clip lock portion is exposed.

[0008] Furthermore, the inner side surface of the snap hook opening is an inclined surface that is inclined 5° downward from the central axis.

[0009] Furthermore, the connecting rod arm and the screw lock tongue are connected by a slider arranged in the lock groove, the slider and the connecting rod arm are connected and installed by a sliding pin, and the screw lock tongue is fixedly installed on the slider and partially protrudes out of the aluminum alloy side panel lock seat.

[0010] Furthermore, the clip lock and the slider are nylon wear-resistant clip lock and nylon wear-resistant slider respectively.

[0011] Furthermore, the handle and the connecting rod arm are connected and installed by rotating rivets on the connecting rod arm.

[0012] Furthermore, the handle and the aluminum alloy side plate lock seat are connected and installed through a handle rotating rivet, and the handle rotating rivet is sleeved on the handle spring.

[0013] Furthermore, a rubber plug is provided on the top of the aluminum alloy side plate lock seat to play a role in blocking, waterproofing and dustproofing.

[0014] Furthermore, the side of the aluminum alloy side plate lock seat is provided with a lock seat slot that allows the screw lock tongue portion to protrude and slide.

[0015] Furthermore, the maximum angle at which the handle can be opened relative to the aluminum alloy side panel lock seat is 80°.

[0016] In summary, the aluminum alloy lock of the tailgate compartment of the present invention adopts an aluminum alloy structure and an embedded design, which has low wind resistance. It has more advantages in terms of lightweighting of automobiles. In order to solve the problem of protective coating of the lock, the surface treatment method of the aluminum alloy lock is electrophoretic powder spraying. The corrosion resistance of the powder spray coating can reach more than 480 hours in the neutral salt spray test, and the corrosion resistance is better. In addition, the slider, clip lock and other frequently sliding accessories of the lock are nylon plastic parts. Since the hardness of nylon plastic is lower than that of metal parts, the motion is transmitted through the nylon plastic parts, which can avoid direct contact and friction between aluminum alloy parts, which may cause the surface coating to fall off and the hardware to wear, greatly increasing the service life and wear resistance of the lock. Since the lock is designed with an embedded hidden handle, after the lock is installed with the side of the tailgate compartment through 4-6 rivets, the lock and the side of the tailgate compartment are in a flat and compact state, that is, the lock and the side of the tailgate compartment are integrated into one, with better consistency, more beautiful appearance, practicality, and high market recognition; and the lock has a simple structure. After being installed with the side of the tailgate compartment through rivets, maintenance and replacement only require the rivets to be removed and the lock replaced as a whole. Finally, in order to address the problem that traditional locks are easy to open, the aluminum alloy lock is equipped with a lock buckle fixing rivet and a clip lock buckle on the handle to form a lock match, thus forming a safety buckle structure. Only when the clip lock buckle is completely separated from the lock buckle fixing rivet to form an open state, can the handle be fully pulled out to unlock and the tailgate be opened, which can meet safety requirements.

[0017] Compared with traditional locks, the aluminum alloy locks of the tailgate carriage have the following advantages:

[0018] (1) Aluminum alloy locks are lighter than existing steel locks;

[0019] (2) Aluminum alloy locks have better corrosion resistance than existing lock structures;

[0020] (3) The hidden, non-protruding design of the aluminum alloy lock has less wind resistance;

[0021] (4) The safety buckle of the aluminum alloy lock is locked when the handle is closed, which is safer and more beautiful in appearance;

[0022] (5) Aluminum alloy locks are easier to install and simple to replace;

[0023] (6) The sliding parts and contact parts of aluminum alloy locks are made of nylon accessories, which have less friction and better durability. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is an exploded schematic diagram of an aluminum alloy lock of a tailgate compartment in the open state of this embodiment 1;

[0025] Figure 2 This is a three-dimensional schematic diagram of an aluminum alloy lock of a tailgate compartment in the open state of this embodiment 1;

[0026] Figure 3 This is a schematic structural diagram of an aluminum alloy lock of a tailgate carriage in the open state of this embodiment 1;

[0027] Figure 4 This is a schematic front view of an aluminum alloy lock of a tailgate carriage in Example 1 when it is not opened;

[0028] Figure 5 This is a top view of an aluminum alloy lock of a tailgate carriage in the open state according to the first embodiment;

[0029] Figure 6 yes Figure 5 Schematic diagram of the cross section along the AA direction;

[0030] Figure 7 This is a partial cross-sectional schematic diagram of an aluminum alloy lock of a tailgate compartment in the open state of this embodiment 1;

[0031] Figure 8 This is a partial cross-sectional schematic diagram of the contact between the clip lock and the lock fixing rivet of the aluminum alloy lock of a tailgate compartment of the present embodiment 1 when the lock is in the open state;

[0032] Figure 9This is a partial cross-sectional schematic diagram of a clip lock of an aluminum alloy lock for a sideboard carriage of the first embodiment when the lock is squeezed to fix the rivet;

[0033] Figure 10 This is a partial cross-sectional schematic diagram of a clip lock and a lock fixing rivet of an aluminum alloy lock of a flatbed carriage of the present embodiment 1 when locked;

[0034] The markings in the attached figure are: 1. Aluminum alloy side panel lock seat; 2. Lock catch fixing rivet; 3. Slider; 4. Screw lock tongue; 5. Sliding pin; 6. Lock catch rotating rivet; 7. Lock catch spring; 8. Clip lock; 9. Handle; 10. Link arm rotating rivet; 11. Link arm; 12. Handle spring; 13. Handle rotating rivet; 14. Rubber plug; 15. Lock slot; 16. Clip hook mouth; 17. Clip pull-up right angle part; 18. Handle opening; 19. Lock seat slot. DETAILED DESCRIPTION

[0035] Example 1

[0036] The aluminum alloy lock of the tailgate carriage described in this embodiment 1 is as follows: Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 and Figure 6 As shown, it includes an aluminum alloy side panel lock seat 1 that is movably fitted and locked with the side panel of the tailgate carriage, a lock slot 15 provided in the aluminum alloy side panel lock seat, a handle 9 hinged in the aluminum alloy side panel lock seat and rotatably embedded in the lock slot, a connecting rod arm 11 hinged on the handle and rotatably embedded in the lock slot and embedded in the handle, a screw lock tongue 4 hingedly installed with the connecting rod arm and placed in the lock slot for linear sliding, the handle is provided with a clip lock 8 hingedly installed with a lock rotating rivet 6, and a lock spring 7 is sleeved on the lock rotating rivet; the lock slot is provided with a lock fixing rivet 2 that is movably locked and fitted with the clip lock; the clip lock is provided with a clip hook mouth 16 that can clip the lock fixing rivet and a clip pulling up right angle portion 17 that can make the clip lock rotate along the lock rotating rivet by applying force by hand; the handle is also provided with a handle opening 18 that is easy for fingers to penetrate and partially exposes the clip lock. The clip lock and lock spring are assembled together via a lock rotating rivet, while the lock fixing rivet is riveted to the aluminum alloy side panel lock base. After assembly, the lock spring is compressed, providing preload to the clip lock, ensuring that the clip lock and lock fixing rivet are locked into a self-locking state, preventing them from loosening. The screw lock tongue is a screw-type lock tongue that acts as a locking tongue. When the lock is tightened, it can limit the position of the vehicle compartment baffle, thereby securing it.

[0037] In this embodiment 1, the inner side surface of the buckle hook opening is an inclined surface that is inclined 5° downward from the central axis.

[0038] In this first embodiment, the connecting link arm and the screw lock tongue are connected by a slider 3 positioned within the lock slot. The slider and connecting link arm are connected by a sliding pin 5. The screw lock tongue is fixed to the slider and partially protrudes beyond the aluminum alloy side panel lock seat. The slider is mounted within the lock slot and can slide linearly within the cavity. The connecting link arm is inserted into the slider's strip groove via a sliding pin. The connecting link arm can rotate freely about the sliding pin, and the sliding pin can slide freely within the slider's strip groove. The slider's strip groove serves as a limiter.

[0039] In this embodiment 1, the clip lock and slider are respectively made of nylon wear-resistant clip lock and nylon wear-resistant slider. Both the clip lock and the slider are made of nylon. The friction coefficient of nylon and metal is smaller, the movement resistance between the accessories is smaller, the movement is smoother, and the durability is better.

[0040] In this embodiment 1, the handle and the connecting arm are connected and installed via a connecting arm rotating rivet 10. The connecting arm is installed together with the handle via the connecting arm rotating rivet, and the connecting arm can rotate freely around the axis of the connecting arm rotating rivet.

[0041] In this embodiment 1, the handle is connected to the aluminum alloy side panel lock base via a handle rotating rivet 13, which is fitted with a handle spring 12. The handle spring is attached to the handle via the handle rotating rivet and is fixed to the aluminum alloy side panel lock base; the handle can rotate freely around the axis of the handle rotating rivet.

[0042] In this embodiment 1, the top of the aluminum alloy side plate lock seat is further provided with a rubber plug 14 that plays a role in blocking and waterproofing and dustproofing. The rubber plug is installed on the top of the aluminum alloy side plate lock seat, which can prevent rainwater, dust, etc. from entering the lock slot from the top of the aluminum alloy side plate lock seat, and play a certain waterproof and dustproof effect.

[0043] In this embodiment 1, the aluminum alloy side plate lock seat has a lock seat slot 19 on the side that allows the screw lock tongue to partially protrude and slide. The screw lock tongue is a lock tongue of a screw structure that is screwed into the slider; the screw lock tongue cooperates with the lock seat slot of the aluminum alloy side plate lock seat to achieve the function of linear sliding limit of the screw lock tongue.

[0044] In this embodiment 1, the maximum angle of the handle relative to the aluminum alloy side panel lock seat is 80°.

[0045] The working principle of the aluminum alloy lock of the tailgate carriage is as follows: (1) Lock closing: the clip lock is the clip component of the aluminum alloy lock. When the handle is rotated and closed and embedded in the lock groove, the clip lock presses against the lock fixing rivet. Since the lock fixing rivet is fixed, the outer side bevel of the clip lock hook mouth contacts the lock fixing rivet, generating a force perpendicular to the outer side bevel, causing the clip lock to rotate around the axis of the lock rotating rivet, the clip lock is pushed up, and the clip opening of the clip hook mouth gradually opens. Finally, the clip opening gradually slides onto the lock fixing rivet, forming the clip hook mouth to buckle the lock fixing rivet, that is, forming the clip lock to buckle the lock fixing rivet, so that the handle is locked in the aluminum alloy side panel lock seat and cannot fall out, forming the closure of the entire aluminum alloy lock; Figure 7 、 Figure 8 、 Figure 9 and Figure 10 As shown. After the aluminum alloy lock is closed, the lock spring is in a compressed state, and the torque generated by it makes the opening direction of the clip lock hook always press the lock fixing rivet, providing a pre-tightening force for the clip lock, so that the clip lock hook will never loosen naturally from the lock fixing rivet, ensuring the safety of the lock. (2) Opening the lock: When the lock needs to be opened and the handle is pulled out of the lock slot, insert your finger into the handle opening, and then pull the clip up with your finger to pull up the right angle part, so that the clip lock rotates outward, and the clip lock hook can gradually be disengaged from the lock fixing rivet, and finally the clip lock and the lock fixing rivet are separated and no longer fastened, so that the lock can be opened.

[0046] The inner bevel of the clip lock's hook opening is designed with a 5° inclination angle. When the handle is closed, the inner bevel of the clip lock contacts and presses against the lock's fixed rivet. The clip lock is subjected to a supporting force F from the lock's fixed rivet. The direction of F deviates from the axis of the lock's rotating rivet, generating a clockwise torque. This ensures that the opening direction of the clip lock's hook opening always presses against the lock's fixed rivet, causing self-locking and preventing the handle from being pulled open. Therefore, without deactivating the clip lock, the handle cannot be pulled open and the lock cannot be opened, ensuring the lock's security.

[0047] In this embodiment 1, the aluminum alloy lock of the tailgate compartment adopts an aluminum alloy structure and an embedded design, which has low wind resistance. It has more advantages in terms of lightweighting the car. To address the problem of lock protective coating, the surface treatment method of the aluminum alloy lock is electrophoresis powder spraying. The corrosion resistance of the powder spray coating can reach more than 480 hours in the neutral salt spray test, and the anti-corrosion performance is better. In addition, the slider, clip lock and other frequently sliding accessories of the lock are nylon plastic parts. Since the hardness of nylon plastic is lower than that of metal parts, the motion is transmitted through the nylon plastic parts. This can avoid direct contact and friction between aluminum alloy parts, which may cause the surface coating to fall off and the hardware to wear, greatly increasing the service life and wear resistance of the lock. Since the lock is designed with an embedded hidden handle, after the lock is installed with the side of the tailgate compartment through 4-6 rivets, the lock and the side of the tailgate compartment are in a flat and compact state, that is, the lock and the side of the tailgate compartment are integrated into one, with better consistency, more beautiful appearance, practicality, and high market recognition; and the lock has a simple structure. After being installed with the side of the tailgate compartment through rivets, maintenance and replacement only require the rivets to be removed and the lock replaced as a whole. Finally, in order to address the problem that traditional locks are easy to open, the aluminum alloy lock is equipped with a lock buckle fixing rivet and a clip lock buckle on the handle to form a lock match, thus forming a safety buckle structure. Only when the clip lock buckle is completely separated from the lock buckle fixing rivet to form an open state, can the handle be fully pulled out to unlock and the tailgate be opened, which can meet safety requirements.

[0048] Compared with traditional locks, the aluminum alloy locks of the tailgate carriage have the following advantages:

[0049] (1) Aluminum alloy locks are lighter than existing steel locks;

[0050] (2) Aluminum alloy locks have better corrosion resistance than existing lock structures;

[0051] (3) The hidden, non-protruding design of the aluminum alloy lock has less wind resistance;

[0052] (4) The safety buckle of the aluminum alloy lock is locked when the handle is closed, which is safer and more beautiful in appearance;

[0053] (5) Aluminum alloy locks are easier to install and simple to replace;

[0054] (6) The sliding parts and contact parts of aluminum alloy locks are made of nylon accessories, which have less friction and better durability.

[0055] The above description is only a preferred embodiment of the present invention and does not constitute any formal limitation on the structure of the present invention. Any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention shall still fall within the scope of the technical solution of the present invention.

Claims

1. An aluminum alloy lock for a tailgate compartment, comprising an aluminum alloy side panel lock seat (1) that is movably fitted and locked with the tailgate compartment side panel, a lock slot (15) provided in the aluminum alloy side panel lock seat, a handle (9) hinged in the aluminum alloy side panel lock seat and rotatably embedded in the lock slot, a connecting rod arm (11) hinged on the handle and rotatably embedded in the lock slot and embedded in the handle, and a screw lock tongue (4) hingedly mounted on the connecting rod arm and placed in the lock slot for linear sliding, characterized in that: The handle is provided with a clip lock (8) which is hingedly mounted with a lock rotating rivet (6), and a lock spring (7) is sleeved on the lock rotating rivet; a lock fixing rivet (2) which is mounted in a movable locking fit with the clip lock is provided in the lock slot; the clip lock is provided with a clip hook opening (16) which can be snapped with the lock fixing rivet and a clip pulling right angle portion (17) which can be caused to rotate the clip lock along the lock rotating rivet by applying force by hand; the handle is also provided with a handle opening (18) which is easy for fingers to penetrate and partially exposes the clip lock.

2. The aluminum alloy lock for a tailgate carriage according to claim 1, characterized in that: The inner side surface of the buckle hook opening is an inclined surface that is inclined 5° downward from the central axis.

3. The aluminum alloy lock for a tailgate carriage according to claim 2, characterized in that: The connecting rod arm and the screw lock tongue are connected by a slider (3) arranged in the lock groove, the slider and the connecting rod arm are connected and installed by a sliding pin (5), and the screw lock tongue is fixedly installed on the slider and partially protrudes out of the aluminum alloy side plate lock seat.

4. The aluminum alloy lock for a tailgate carriage according to claim 3, characterized in that: The clip lock buckle and the slider are respectively a nylon wear-resistant clip lock buckle and a nylon wear-resistant slider.

5. The aluminum alloy lock for a tailgate carriage according to claim 4, characterized in that: The handle and the connecting rod arm are connected and installed by rotating the rivet (10) of the connecting rod arm.

6. The aluminum alloy lock for a tailgate carriage according to claim 5, characterized in that: The handle and the aluminum alloy side plate lock seat are connected and installed via a handle rotating rivet (13), and a handle spring (12) is sleeved on the handle rotating rivet.

7. The aluminum alloy lock for a tailgate carriage according to claim 6, characterized in that: The top of the aluminum alloy side plate lock seat is also provided with a rubber plug (14) which plays the role of blocking, waterproofing and dustproofing.

8. The aluminum alloy lock for a tailgate carriage according to claim 7, characterized in that: The side of the aluminum alloy side plate lock seat is provided with a lock seat slot (19) which allows the screw lock tongue part to protrude and slide.

9. The aluminum alloy lock for a tailgate carriage according to claim 8, characterized in that: The maximum opening angle of the handle relative to the aluminum alloy side plate lock seat is 80 degrees.

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