CN217326862U - Automobile cover lock - Google Patents

Abstract

The utility model discloses an automobile hood lock, which comprises a first lock body assembly and a second lock hook assembly, wherein the first lock body assembly is provided with a lower lock body, the lower lock body is provided with a first connecting center hole, a second connecting center hole, a guiding arc surface, a locking port and a rectangular mounting hole, the first lock body assembly is provided with an upper lock body, the upper lock body is provided with a rectangular mounting hole, a support plate cable groove, a support plate cable hole, an opening pull plate port, a locking notch, a guiding arc surface, a limiting support plate, a first connecting center hole and a second connecting center hole, a middle lock body is arranged in the first lock body assembly, a first annular groove, a torsional spring clamping groove, a second annular groove, a torsional spring clamping groove, a guiding arc surface, a locking port, a buffer block, a first connecting center hole and a central hole round boss are arranged in the middle lock body, the left and right dimensions and the up and down dimensions of the locking are large, the cover can be stably, firmly and reliably locked and unlocked no matter the cover is deformed or falls down.

Description

Automobile cover lock

Technical Field

The utility model relates to a machine lid lock technical field, more specifically says that it relates to a car machine lid lock.

Background

At present, in the prior art, a heavy truck cover lock generally adopts a fixing structure that a simple pin and an opening clamping plate in a guide hole are clamped with each other, when a truck runs in the locking state of a cover lock assembly, the front panel slowly falls down due to jolting of the whole truck up and down and left and right, the pin arranged on the front panel and the guide hole of a lock body arranged on a fixing seat can be dislocated, the pin can be clamped by the guide hole lock hook assembly on the cover lock assembly once the dislocation reaches more than 0.5mm, the cover lock hook assembly can be damaged, and when the cover lock assembly is unlocked, the pin can not fall off the guide hole on the cover lock assembly, the cover lock hook assembly can not be opened, and the front panel can not be upturned.

Disclosure of Invention

Not enough to prior art exists, the utility model provides an automobile cover lock has the beneficial effect of reasonable in design, simple structure, installation, convenient operation, life of a specified duration.

In order to achieve the above purpose, the utility model provides a following technical scheme: a kind of car bonnet lock, including the first lock body assembly and second lock hook assembly locked each other; the method is characterized in that: the first lock body assembly is provided with an elastic rotatable cam hook for opening the pull plate assembly; the cam hook is provided with a locking port which is locked with a U-shaped locking hook of the second locking hook assembly; the cam hook is provided with a locking surface which is locked with a locking boss arranged on the opening pull plate assembly; an elastic reset piece is fixedly arranged in the first lock body assembly; the elastic reset piece elastically limits the cam hook and the opening pull plate assembly.

The utility model discloses further set up to: the elastic reset piece is a right torsion spring and a left torsion spring; the first lock body assembly further comprises: the lock comprises a lower lock body, a middle lock body, a rivet, a buffer block and an upper lock body; the second latch hook assembly 10 includes: the locking device comprises a first mounting hole, a second mounting hole, a U-shaped locking hook and a third mounting hole.

The utility model discloses further set up to: the left torsion spring is respectively provided with a left torsion spring stress end, a left torsion spring fixed end and a left torsion spring central hole, and the right torsion spring is respectively provided with a right torsion spring stress end, a right torsion spring fixed end and a right torsion spring central hole; the first lock body assembly is respectively provided with a torsion spring clamping groove for limiting the end parts of the left torsion spring fixed end and the right torsion spring fixed end; a first central hole circular boss and a second central hole circular boss are arranged on the first lock body assembly; the first central hole circular boss is matched and fixed with the left torsion spring central hole; and the second central hole circular boss is matched and fixed with the central hole of the right torsion spring.

The utility model discloses further set up to: the first connecting center hole of the cam hook, the left torsion spring center hole of the left torsion spring, the connecting hole center hole of the middle lock body, the connecting center hole of the lower lock body and the connecting center hole of the upper lock body are hinged through rivets; the opening pull plate assembly comprises an opening main plate and an opening auxiliary plate; the connecting holes of the opening main plate and the opening auxiliary plate are hinged through rivets; the second connecting central hole of the opening pull plate assembly, the right torsion spring central hole of the right torsion spring, the connecting hole central hole of the middle lock body, the connecting central hole of the lower lock body and the connecting central hole of the upper lock body are hinged through rivets; the buffer block surface of the buffer block is abutted against the U-shaped lock hook in the locking state of the cover lock.

The utility model discloses further set up to: the first lock body assembly comprises a lower lock body, a middle lock body and an upper lock body, the cam hook is provided with a first connecting center hole, the opening pull plate assembly is provided with a second connecting center hole, a rivet is arranged in the first connecting center hole, and the rivet arranged in the second connecting center hole is used for hinging the lower lock body, the middle lock body and the upper lock body respectively.

The utility model discloses further set up to: an opening pull plate opening is formed in the upper lock body, a stay cable support plate of the opening pull plate assembly extends out of the opening pull plate opening, and a support plate stay cable groove and a support plate stay cable hole are formed in the stay cable support plate; one end of the upper lock body is provided with a support plate inhaul cable groove and a support plate inhaul cable hole, and the other end of the upper lock body is provided with a support plate inhaul cable groove and a support plate inhaul cable hole.

The utility model discloses further set up to: and the upper lock body is respectively provided with a connecting center hole, a guiding arc surface, a locking port, a limiting support plate, a rectangular mounting hole and a reinforcing rib.

The utility model discloses further set up to: the middle lock body is provided with an annular groove, a torsion spring clamping groove, an annular groove and a torsion spring clamping groove, the left torsion spring is arranged in the annular groove, the torsion spring fixed end of the left torsion spring is inserted into the torsion spring clamping groove, the right torsion spring is arranged in the annular groove, and the torsion spring fixed end of the right torsion spring is inserted into the torsion spring clamping groove; the middle lock body is respectively provided with a connecting central hole, a central hole round boss, a connecting central hole and a central hole round boss which are respectively sleeved with a rivet, and the rivet is respectively provided with a riveting end face, a limiting face and a fixing face; and the middle lock body is respectively provided with a guide arc surface and a locking port.

The utility model discloses further set up to: the lower lock body is respectively provided with a connecting center hole, a guiding arc surface locking port, a rectangular mounting hole and a reinforcing rib, and the connecting center hole are respectively sleeved with a rivet.

The utility model discloses further set up to: the second lock hook assembly is provided with a mounting hole, a second mounting hole, a third mounting hole and a U-shaped lock hook respectively, the U-shaped lock hook is buckled firmly with a locking opening of the cam hook to realize locking of the cover lock, the length of the bottom of the U-shaped lock hook is larger than 25cm, the thickness of the cam hook is between 5cm and 8cm, and therefore the U-shaped lock hook is buckled firmly with the locking opening of the cam hook to realize upward maximum deviation of the truck cover at the central position by 8cm when the cover lock is locked.

To sum up, the utility model discloses following beneficial effect has: when the cover lock is locked, the maximum upward deviation of the truck cover at the central position by 8cm can be realized, and the maximum downward deviation by 8cm solves the problem that the cover lock is not firm or locked due to accurate positioning and falling of the truck cover; the left and right displacement is big, and the bonnet lock also can be accurately installed fixedly, and the up-down stroke is big, before or after the bonnet lock locks, the bonnet lock also can be stably opened or locked by the tenesmus deformation to optimize the bonnet lock inner structure, make overall structure more firm reliable, improved life greatly.

Drawings

FIG. 1 is a schematic structural diagram of the present embodiment;

fig. 2 is a schematic perspective view of the lower lock body of the present embodiment;

fig. 3 is a schematic perspective view of the lock body in the embodiment;

FIG. 4 is a perspective view of the rivet of this embodiment;

FIG. 5 is a schematic perspective view of the right torsion spring of the present embodiment;

FIG. 6 is a schematic perspective view of the opening plate assembly of the present embodiment;

FIG. 7 is a schematic perspective view of a buffer block according to the present embodiment;

FIG. 8 is a schematic perspective view of the left torsion spring of the present embodiment;

FIG. 9 is a perspective view of the cam hook of the present embodiment;

figure 10 is a perspective view of the upper lock body of the present embodiment;

fig. 11 is a schematic perspective view of the second latch hook assembly 10 of the present embodiment.

Reference numerals:

1. the lock comprises a lower lock body, a guide arc surface 101, a locking port 102, a connecting central hole 103, a reinforcing rib 104, a reinforcing rib 105, a rectangular mounting hole 106 and a connecting central hole;

2. the lock comprises a middle lock body, 201, annular grooves, 202, a connecting central hole, 203, annular grooves, 204, a connecting central hole, 205, a guide arc surface, 206, a locking port, 207, torsion spring clamping grooves, 208, a central hole circular boss, 209, torsion spring clamping grooves, 210 and a central hole circular boss;

3. the riveting method comprises the following steps of (1) riveting 301, riveting an end face 302, a limiting face 303 and a fixing face;

4. the right torsion spring 401, the stress end of the torsion spring 402, the fixed end of the torsion spring 403 and the central hole of the torsion spring;

5. opening a pulling plate assembly 501, fixing a torsion spring 502, connecting a central hole 503, opening a main plate 504, opening an auxiliary plate 505, a locking boss 506, a connecting hole 507, a support plate cable hole 508, a support plate cable groove 509 and a cable support plate;

6. a buffer block 601, a buffer block surface;

7. the left torsion spring 701, a stress end of the torsion spring 702, a fixed end of the torsion spring 703 and a central hole of the torsion spring;

8. the cam hook 801, the locking surface 802, the locking opening 803, the positioning surface 804 and the torsion spring fixing position 805 are connected with the central hole;

9. the lock comprises an upper lock body, 901, a rectangular mounting hole, 902, a reinforcing rib, 903, a support plate inhaul cable groove, 904, a support plate inhaul cable hole, 905, an opening plate opening, 906, a connecting central hole, 907, a locking opening, 908, a guide arc surface, 909, a limiting support plate, 910, a connecting central hole, 911, a support plate inhaul cable groove, 912 and a support plate inhaul cable hole;

10. a second latch hook assembly; 1001. the mounting structure comprises a first mounting hole 1002, a second mounting hole 1003, a U-shaped locking hook 1004, a third mounting hole 1005 and a fixing plate.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

The embodiment discloses an automobile hood lock, as shown in fig. 1 to 11, has the beneficial effects of reasonable design, simple structure, installation, convenient operation and long service life.

Comprises a first lock body assembly and a second lock hook assembly 10 which are locked with each other; the first lock body assembly is provided with an elastic rotatable cam hook 8 for opening the pull plate assembly 5; a locking opening 802 is arranged on the cam hook 8 and is locked with a U-shaped locking hook 1003 of the second locking hook assembly 10; the cam hook 8 is provided with a locking surface 801 which is locked with a locking boss 505 arranged on the opening pull plate assembly 5; an elastic reset piece is fixedly arranged in the first lock body assembly; the elastic reset piece elastically limits the cam hook 8 and the opening pull plate assembly 5.

The elastic reset pieces are a right torsion spring 4 and a left torsion spring 7; the first lock body assembly further comprises: the lock comprises a lower lock body 1, a middle lock body 2, a rivet 3, a buffer block 6 and an upper lock body 9; the second latch hook assembly 10 includes: the locking device comprises a first mounting hole (1001), a second mounting hole 1002, a U-shaped locking hook 1003 and a third mounting hole 1004.

The left torsion spring 7 is respectively provided with a left torsion spring stress end 701, a left torsion spring fixing end 702 and a left torsion spring central hole 703, and the right torsion spring 4 is respectively provided with a right torsion spring stress end 401, a right torsion spring fixing end 402 and a right torsion spring central hole 403; the first lock body assembly is respectively provided with a torsion spring clamping groove for limiting the end parts of the left torsion spring fixing end 702 and the right torsion spring fixing end 402; a first central hole circular boss 208 and a second central hole circular boss 210 are arranged on the first lock body assembly; the first central hole circular boss 208 is matched and fixed with the left torsion spring central hole 703; the second central hole circular boss 210 is matched and fixed with the right torsion spring central hole 403.

The first connecting center hole 805 of the cam hook 8, the left torsion spring center hole 703 of the left torsion spring 7, the connecting hole center hole 202 of the middle lock body 2, the connecting center hole 106 of the lower lock body 1 and the connecting center hole 901 of the upper lock body 9 are hinged through a rivet 3; the opening pull plate assembly 5 comprises an opening main plate 503 and an opening auxiliary plate 504; the connecting holes 506 of the opening main plate 503 and the opening auxiliary plate 504 are hinged through rivets; the second connecting central hole 502 of the opening pulling plate assembly 5, the right torsion spring central hole 403 of the right torsion spring 4, the connecting hole central hole 204 of the middle lock body 2, the connecting central hole 103 of the lower lock body 1 and the connecting central hole 906 of the upper lock body 9 are hinged through a rivet 3; the buffer surface 601 of the buffer 6 is in contact with the U-shaped latch 1003 in the locked state of the lid lock.

The first lock body assembly comprises a lower lock body 1, a middle lock body 2 and an upper lock body 9, the cam hook 8 is provided with a first connecting center hole 805, the opening pull plate assembly 5 is provided with a second connecting center hole 502, and a rivet 3 is arranged in the first connecting center hole 805 and a rivet 3 arranged in the second connecting center hole 502 are used for hinging the lower lock body 1, the middle lock body 2 and the upper lock body 9 respectively.

An opening pull plate opening 905 is formed in the upper lock body 9, a stay cable support plate 509 of the opening pull plate assembly 5 extends out of the opening pull plate opening 905, and a support plate stay cable groove 508 and a support plate stay cable hole 507 are formed in the stay cable support plate 509; one end of the upper lock body 9 is provided with a support plate cable groove 903 and a support plate cable hole 904, and the other end is provided with a support plate cable groove 911 and a support plate cable hole 912.

The upper lock body 9 is respectively provided with a connecting central hole 906, a connecting central hole 910, a guiding arc surface 908, a locking port 907, a limiting support plate 909, a rectangular mounting hole 901 and a reinforcing rib 902.

The middle lock body 2 is provided with an annular groove 201, a torsion spring clamping groove 207, an annular groove 203 and a torsion spring clamping groove 209, the left torsion spring 7 is arranged in the annular groove 201, a torsion spring fixed end 702 of the left torsion spring 7 is inserted into the torsion spring clamping groove 207, the right torsion spring 4 is arranged in the annular groove 203, and a torsion spring fixed end 402 of the right torsion spring 4 is inserted into the torsion spring clamping groove 209; the middle lock body 2 is respectively provided with a connecting central hole 202, a central hole circular boss 208, a connecting central hole 204 and a central hole circular boss 210 which are respectively sleeved with a rivet 3, and the rivet 3 is respectively provided with a riveting end face 301, a limiting face 302 and a fixing face 303; the middle lock body 2 is respectively provided with a guiding arc surface 205 and a locking opening 206.

The lower lock body 1 is respectively provided with a connecting center hole 103, a connecting center hole 106, a guide arc surface 101 locking port 102, a rectangular mounting hole 105 and a reinforcing rib 104, and the connecting center hole 103 and the connecting center hole 106 are respectively sleeved with the upper rivet 3.

The second locking hook assembly 10 is provided with a mounting hole 1001, a second mounting hole 1002, a third mounting hole 1004 and a U-shaped locking hook 1003 respectively, the U-shaped locking hook 1003 and a locking opening (802) of the cam hook (8) are buckled firmly to realize locking of the cover, the length of the bottom of the U-shaped locking hook 1003 is larger than 25cm, the thickness of the cam hook (8) is between 5cm and 8cm, and therefore the U-shaped locking hook 1003 and the locking opening (802) of the cam hook (8) are buckled firmly to realize upward maximum deviation of the truck cover at the center position by 8cm when the cover is locked.

The lock comprises a first lock body assembly and a second lock hook assembly 10, wherein the second lock hook assembly 10 can be locked with the first lock body assembly, a middle lock body 2 is arranged in the first lock body assembly, a rotary opening pulling plate assembly 5 and a rotary cam hook 8 are arranged in the middle lock body 2, the opening pulling plate assembly 5 and the cam hook 8 are positioned at two sides of a locking port, the opening pulling plate assembly 5 and the cam hook 8 are respectively provided with an elastic reset piece, namely a right torsion spring 4 and a left torsion spring 7, the cam hook 8 is provided with a locking port 802, a positioning surface 803, a locking surface 801 and a torsion spring fixing position 804, the locking surface 801 and a locking boss 505 of the opening pulling plate assembly 5 are locked with each other in a locking state, the positioning surface 803 is abutted against a limiting support plate 909 of a locking body 9 in an unlocking state, the torsion spring fixing position 804 is abutted against a torsion spring force bearing end of the left torsion spring 7, the torsion spring fixing position 501 of the opening pulling plate assembly 5 is abutted against a torsion spring force bearing end of the right torsion spring 4, a cable stay 509 of the opening stay assembly 5 extends from an opening stay opening 905 of the upper lock body 9, and the cable stay 509 is provided with a stay groove 507 and a stay hole 508.

The bottom of the locking opening of the middle lock body 2 of the first lock body assembly is provided with a buffer block 6, the buffer block surface 601 of the buffer block 6 is abutted to the U-shaped locking hook 1003 in the locking state of the cover lock, and the shock absorption effect of the truck cover of the automobile in the driving process is achieved, so that the noise is eliminated

First lock body assembly is equipped with down lock body 1, lock body 1 is equipped with connection centre bore 103, connection centre bore 106, direction arc surface 101, locking mouth 102, long square mounting hole 105 down, connection centre bore 103, connection centre bore 106 are established in the both sides of direction arc surface 101 and locking mouth 102, and first rivet 3 and second rivet 3 pass from connection centre bore 103, connection centre bore 106, long square mounting hole 105 is fixed on the car for first lock body assembly, because long square mounting hole 105 is the slotted hole, can control the skew, can accomplish accurate location when installing first lock body assembly, direction arc surface 101 can make the smooth introduction of U-shaped latch hook 1003 of second latch hook assembly 10 to locking mouth 102 in the in-process of locking.

The first lock body assembly is provided with an upper lock body 9, the upper lock body 9 is provided with an opening pull plate opening 905, and a pull cable support plate 509 of the opening pull plate assembly 5 extends out of the opening pull plate opening 905.

The upper lock body 9 is provided with a connecting center hole 906, a connecting center hole 910, a guiding arc surface 908, a locking port 907 and a rectangular mounting hole 901, the connecting center hole 906 and the connecting center hole 910 are arranged on two sides of the guiding arc surface 908 and the locking port 907, a first rivet 3 and a second rivet 3 penetrate through the connecting center hole 906 and the connecting center hole 910, the rectangular mounting hole 901 is used for fixing the first lock body assembly on a vehicle, the rectangular mounting hole 901 is a long round hole and can be deviated left and right, accurate positioning can be achieved when the first lock body assembly is installed, and the guiding arc surface 908 can enable the U-shaped lock hook 1003 of the second lock hook assembly 10 to be smoothly led into the locking port 907 in the locking process.

The upper lock body 9 is provided with a limit support plate 909 which is abutted against the positioning surface 803 of the cam hook 8 in the unlocking state.

One end of the upper lock body 9 is provided with a support plate cable groove 903 and a support plate cable hole 904, and the other end is also provided with a support plate cable groove 911 and a support plate cable hole 912.

The first lock assembly is fixed on the vehicle by a screw of M6 through the rectangular mounting hole 901 of the upper lock 9 and the rectangular mounting hole 105 of the lower fixing bracket 1.

The head of the inner cable wire is clamped into a support plate cable hole 508 of a support plate cable groove 507 of a cable support plate 509 of the first lock assembly opening pull plate assembly 5, the cable outer sleeve is assembled on the support plate cable hole 904 through a support plate cable groove 903 of the upper lock body 9, and the tail of the cable outer sleeve is pulled to a cab and clamped to a buckle.

The first mounting hole 1001, the second mounting hole 1002 and the third mounting hole 1004 of the fixing plate of the second latch hook assembly 10 are fixed on the cover by using M8 screws, because the length of the U-shaped latch hook 1003 is 25cm, the stroke vertical to the ground is large, and the thickness of the cam hook 8 of the first latch hook assembly is between 5cm and 8cm, the cover can be reliably locked even if the cover falls down, and the strength of the cam hook 8 between 5cm and 8cm is very good, so that the cover is not easy to deform and damage.

Because the two rectangular mounting holes 901 and the rectangular mounting holes 105 on the first lock assembly are oblong holes, the first lock assembly can be deviated from left to right during mounting, accurate positioning can be realized during mounting, and the first lock assembly is very convenient and easy to use during mounting.

In the process of the first lock hook assembly and the second lock hook assembly 10 from the locking state to the unlocking state, firstly, the handle of the locking device is pulled in the cab, the cable drives the cable support plate 509 on the opening pull plate assembly 5 of the first lock hook assembly to rotate, the locking boss 505 is separated from the locking surface 801 of the cam hook 8, the cam hook 8 drives the cam hook 8 to rotate under the action of the return torque of the left torsion spring 7 until the positioning surface 803 abuts against the limiting support plate 909 of the upper lock body 9, and then the locking port 802 of the cam hook 8 is also turned out to push out the U-shaped lock hook 1003 of the second lock hook assembly 10 to slide out along the guiding arc surface of the locking port, so that the cover is also turned out.

In the process from the unlocking state to the locking state of the first lock body assembly and the second lock hook assembly 10, an inward thrust is generated on the cover by hand, the U-shaped lock hook 1003 of the second lock hook assembly 10 fixed on the cover is simultaneously guided in from the guide arc surface 908, the guide arc surface 205 and the guide arc surface 101 of the cover lock assembly A1, when the U-shaped lock hook 1003 moves forward to the locking surface 801 of the cam hook 8 to touch and push the cam hook 8 to rotate, meanwhile, the torsion spring stress end 701 of the left torsion spring 7 is pressed against the torsion spring fixing position 804, the energy stored by the left torsion spring 7 is also continuously increased along with the rotation of the cam hook 8, when the U-shaped lock hook 1003 reaches the locking port 802, the torsion spring stress end 401 of the right torsion spring 4 of the opening pull plate assembly 5 is in low contact with the torsion spring fixing position 501, the opening pull plate assembly 5 is driven to rotate under the action of the reset force of the right torsion spring 4, so that the boss 505 is pressed against and firmly buckled with the locking surface, at this time, the pushing force on the truck cover is released, the cam hook 8 rotates back under the action of the reset force of the left torsion spring 7 to enable the lock catch surface 801 to be tightly buckled with the lock catch boss 505, the U-shaped lock hook 1003 is locked with the lock opening 802 of the cam hook 8, and the buffer block surface 601 is abutted against the U-shaped lock hook 1003 in the lock state of the truck cover, so that the shock absorption effect of the truck cover during the driving of the automobile is achieved, and the noise is eliminated.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, any modifications, equivalent replacements, improvements, etc. made within the design concept of the present invention should be included within the protection scope of the present invention.

Claims (10)

1. A kind of car bonnet lock, including first lock body assembly and second lock hook assembly locked each other; the method is characterized in that: an elastic rotatable cam hook (8) is arranged on the first lock body assembly, and a pull plate assembly (5) is opened; a locking opening (802) is formed in the cam hook (8) and locked with a U-shaped locking hook (1003) of the second locking hook assembly; a locking surface (801) arranged on the cam hook (8) is locked with a locking boss (505) arranged on the opening pull plate assembly (5); an elastic resetting piece is fixedly arranged in the first lock body assembly; the elastic reset piece elastically limits the cam hook (8) and the opening pull plate assembly (5).

2. The automotive hood lock of claim 1, wherein: the elastic reset piece is a right torsion spring (4) and a left torsion spring (7); the first lock body assembly further comprises: the lock comprises a lower lock body (1), a middle lock body (2), a rivet (3), a buffer block (6) and an upper lock body (9); the second latch hook assembly comprises: the mounting structure comprises a first mounting hole (1001), a second mounting hole (1002), a U-shaped locking hook (1003) and a third mounting hole (1004).

3. The automotive hood lock of claim 2, wherein: the left torsion spring (7) is respectively provided with a left torsion spring stress end (701), a left torsion spring fixed end (702) and a left torsion spring central hole (703), and the right torsion spring (4) is respectively provided with a right torsion spring stress end (401), a right torsion spring fixed end (402) and a right torsion spring central hole (403); the first lock body assembly is respectively provided with a torsion spring clamping groove for limiting the end parts of the left torsion spring fixing end (702) and the right torsion spring fixing end (402); a first central hole circular boss (208) and a second central hole circular boss (210) are arranged on the first lock body assembly; the first central hole round boss (208) is matched and fixed with the left torsion spring central hole (703); and the second central hole circular boss (210) is matched and fixed with the right torsion spring central hole (403).

4. The automobile hood lock according to claim 2 or 3, characterized in that: a first connecting center hole (805) of the cam hook (8), a left torsion spring center hole (703) of the left torsion spring (7), a connecting hole center hole (202) of the middle lock body (2), and a connecting center hole (106) of the lower lock body (1) are hinged with a connecting center hole (901) of the upper lock body (9) through a rivet (3); the opening pull plate assembly (5) comprises an opening main plate (503) and an opening auxiliary plate (504); the connecting holes (506) of the opening main plate (503) and the opening auxiliary plate (504) are hinged through rivets; the second connecting center hole (502) of the opening pull plate assembly (5), the right torsion spring center hole (403) of the right torsion spring (4), the connecting hole center hole (204) of the middle lock body (2), the connecting center hole (103) of the lower lock body (1) and the connecting center hole (906) of the upper lock body (9) are hinged through a rivet (3); the buffer block surface (601) of the buffer block (6) is abutted against the U-shaped lock hook (1003) in the locking state of the cover lock.

5. The automobile hood lock of claim 4, wherein: the first lock body assembly comprises a lower lock body (1), a middle lock body (2) and an upper lock body (9), a first connecting center hole (805) is formed in the cam hook (8), a second connecting center hole (502) is formed in the opening pull plate assembly (5), a rivet (3) is arranged in the first connecting center hole (805) and the rivet (3) arranged in the second connecting center hole (502) is used for hinging the lower lock body (1), the middle lock body (2) and the upper lock body (9) respectively.

6. The automobile hood lock of claim 5, wherein: an opening pull plate opening (905) is formed in the upper lock body (9), a stay cable support plate (509) of the opening pull plate assembly (5) extends out of the opening pull plate opening (905), and a support plate stay cable groove (508) and a support plate stay cable hole (507) are formed in the stay cable support plate (509); one end of the upper lock body (9) is provided with a support plate inhaul cable groove (903), a support plate inhaul cable hole (904) and the other end is provided with a support plate inhaul cable groove (911) and a support plate inhaul cable hole (912).

7. The automotive hood lock of claim 6, wherein: the upper lock body (9) is respectively provided with a connecting center hole (906), a connecting center hole (910), a guiding arc surface (908), a locking port (907), a limiting support plate (909), a rectangular mounting hole (901) and a reinforcing rib (902).

8. The vehicle hood lock of claim 7, wherein: an annular groove (201), a torsion spring clamping groove (207), an annular groove (203) and a torsion spring clamping groove (209) are formed in the middle lock body (2), the left torsion spring (7) is arranged in the annular groove (201), a torsion spring fixed end (702) of the left torsion spring (7) is inserted into the torsion spring clamping groove (207), the right torsion spring (4) is arranged in the annular groove (203), and a torsion spring fixed end (402) of the right torsion spring (4) is inserted into the torsion spring clamping groove (209); the middle lock body (2) is respectively provided with a connecting central hole (202), a central hole circular boss (208), a connecting central hole (204) and a central hole circular boss (210) which are respectively sleeved with a rivet (3), and the rivet (3) is respectively provided with a riveting end face (301), a limiting face (302) and a fixing face (303); and the middle lock body (2) is respectively provided with a guide arc surface (205) and a locking port (206).

9. The automotive hood lock of claim 8, wherein: the lower lock body (1) is provided with a connecting center hole (103), a connecting center hole (106), a guide arc surface (101), a locking opening (102), a rectangular mounting hole (105) and a reinforcing rib (104), and the connecting center hole (103) and the connecting center hole (106) are respectively sleeved with a rivet (3).

10. The automotive hood lock of claim 9, wherein: the second lock hook assembly is provided with a mounting hole (1001), a second mounting hole (1002), a third mounting hole (1004) and a U-shaped lock hook (1003), the U-shaped lock hook (1003) and a locking opening (802) of the cam hook (8) are mutually fastened to realize locking of the cover lock, the length of the bottom of the U-shaped lock hook (1003) is larger than 25cm, the thickness of the cam hook (8) is between 5cm and 8cm, and therefore the U-shaped lock hook (1003) and the locking opening (802) of the cam hook (8) are mutually fastened to realize upward maximum deviation of the truck cover at the central position of 8cm when the cover lock is locked.

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