Engine hood lock ring, engine hood lock, engine hood and automobile

Abstract

The utility model belongs to the technical field of automobile engine hoods, and discloses an engine hood lock ring, an engine hood lock, an engine hood and an automobile, the engine hood lock ring comprises a base plate, a lock ring and a double-locking assembly, the base plate is provided with a first mounting hole and a second mounting hole, the lock ring is a U-shaped ring, and the double-locking assembly is provided with a second mounting hole. The double-locking assembly comprises a first locking assembly and a second locking assembly, and the two ends of the locking ring can be movably sleeved with the first mounting hole and the second mounting hole in a limited mode respectively and can be locked and fixed to the base plate through the corresponding first locking assembly and the corresponding second locking assembly. The engine hood is adjustable in the Y direction and the Z direction through cooperation of the double locking assemblies and the adjusting holes, the problems that the difference between the hood faces of the engine hood is difficult to adjust and time is long are solved, meanwhile, the two sides of the locking ring are fastened and fixed through the double locking assemblies, and the problems that the locking ring of the engine hood produces abnormal sound and is low in strength are solved. And the device is wide in applicable vehicle types, high in universality, simple to adjust and low in cost.

Description

Technical Field

[0001] The utility model belongs to the technical field of automobile engine hoods, and more specifically, relates to an engine hood lock ring, an engine hood lock, an engine hood and an automobile. Background Art

[0002] As an important exterior part of an automobile, the matching quality between the engine hood and its surrounding parts directly affects the exterior quality and visual effect of the whole vehicle. There are many surrounding parts for the engine hood. To ensure the surface difference of the matching surfaces of the surrounding parts, the following methods are generally used for adjustment: First, adjust the installation position of the engine hood lock. First, remove the engine compartment trim, loosen the fixing bolts of the engine hood lock, and manually adjust the position of the lock up and down and left and right according to the operator's experience. This method completely depends on the worker's experience, cannot control the adjustment amount, has a long and cumbersome adjustment working time, and the adjustment amount is limited due to the restrictions of the lock body and the fixing bolts; Second, adjust the lock ring up and down. The two sides of the existing lock ring pass through the installation holes on the substrate. One side of the lock ring has a thread and is fixed on the substrate by screwing with a nut. The other side of the lock ring has a clearance fit with the substrate through a flanging hole. When adjusting, the up and down position of the lock ring is adjusted by loosening the nut. One side of this lock ring is fixed by a thread, and the other side of the lock ring is not fastened. Such a structure makes the automobile prone to abnormal noises and has low strength. Content of the Utility Model

[0003] The utility model provides an engine hood lock ring, an engine hood lock, an engine hood and an automobile. Through the cooperation of a double locking component and an adjustment hole, the engine hood can be adjusted in the Y direction and the Z direction, solving the problems of difficult and time-consuming adjustment of the engine hood surface difference. At the same time, the double locking component fastens and fixes both sides of the lock ring, solving the problems of abnormal noises and low strength of the engine hood lock ring; it is applicable to a wide range of vehicle models, has strong versatility, simple adjustment and low cost.

[0004] The specific scheme content is as follows:

[0005] An engine hood lock ring includes a substrate, a lock ring and a double locking component. The substrate is provided with a first installation hole and a second installation hole. The lock ring is a U-shaped ring. The double locking component includes a first locking component and a second locking component. The lower ends of both sides of the lock ring can be respectively limited and movably sleeved in the first installation hole and the second installation hole and can be locked and fixed on the substrate through the corresponding first locking component and second locking component.

[0006] The X, Y, and Z directions of the vehicle refer to: the X direction is the length direction of the vehicle, the Y direction represents the width direction of the vehicle, and the Z direction is the vertical direction. This engine hood lock ring can achieve adjustment in the Y and Z directions of the engine hood. There are a first mounting hole and a second mounting hole on its substrate. The lock ring is a U-shaped ring. The two ends of the lock ring can be slidably sleeved in the first mounting hole and the second mounting hole, and its bottom end extends outside the first mounting hole and the second mounting hole. The two ends of the lock ring are respectively locked and fixed on the substrate by a first locking assembly and a second locking assembly. When it is necessary to adjust the Z-direction position of the engine hood lock ring, the first locking assembly can be loosened, and the adjusting nut of the second locking assembly can be rotated clockwise / counterclockwise to adjust the position of the lock ring downward / upward. After the adjustment is completed, the first locking assembly is locked and fixed again. There are also two adjusting holes on the other two diagonals of the substrate. The two adjusting holes are oblong holes. The purpose of adjusting the Y-direction position of this engine hood lock ring is achieved by adjusting the positions of the locking parts installed in the two adjusting holes. The structure of the utility model is simple and the adjustment is convenient.

[0007] Further, the first locking assembly includes a fastening nut and a spring plate fastening seat. The spring plate fastening seat is fixedly connected to the first mounting hole. There is a through hole at the center of the spring plate fastening seat. The lower part of one end of the lock ring can be movably sleeved in the through hole of the spring plate fastening seat and its end is exposed outside the through hole. There is an external thread on the outer circumferential wall in the middle of the spring plate fastening seat. The fastening nut is screwed and fixed to the upper end of the spring plate fastening seat, and the lower part of one end of the lock ring is locked on the spring plate fastening seat.

[0008] The spring plate fastening seat of the first locking assembly is fixedly connected in the first mounting hole. The fastening nut is sleeved on the spring plate fastening seat. One end of the lock ring is inserted into the through hole of the spring plate fastening seat and the lower part of the lock ring passes through the through hole. After the position of the lock ring is adjusted appropriately, the fastening nut is rotated to be screwed and fixed with the spring plate fastening seat, and the spring plate fastening seat locks and fixes the lock ring. When it is necessary to adjust the Z-direction position of the lock ring, the fastening nut is loosened again. The spring plate fastening seat and the lock ring form a clearance fit, and the lock ring can slide up and down along the Z direction.

[0009] Further, the spring plate fastening seat includes at least two fastening claws. The fastening claws are circumferentially arranged at the top end of the spring plate fastening seat. Each fastening claw can be in close contact with the outer circumferential surface of the lower part of one end of the lock ring. The lower end of the spring plate fastening seat is riveted and fixed to the first mounting hole of the substrate.

[0010] The shrapnel fastening seat can firmly fix the lock ring after being locked by the fastening nut because the fastening claws have elasticity and will not become loose due to vibration. At least two fastening claws are circumferentially arranged at the upper end of the shrapnel fastening seat. In the present utility model, four fastening claws are the optimal solution. The four fastening claws of the shrapnel are locked by the fastening nut and can firmly hold the lock ring without becoming loose. The four fastening claws are in clearance fit with the lock ring inserted into the through hole in the free state. When the fastening nut is rotated and screwed onto the shrapnel fastening seat, the four fastening claws are tightened by the fastening nut and locked and pressed against the lock ring to lock and fix the lock ring. The lower end of the shrapnel fastening seat is fixed to the lower end surface of the substrate by riveting, so that the shrapnel fastening seat will not become loose due to the vibration of the vehicle, can completely lock the lock ring, and has a long service life. The shrapnel fastening seat can be integral or split, and is fixedly connected by the fastening claws at the upper end and the mounting seat at the lower end. The integral structure of the shrapnel fastening seat is a better choice.

[0011] Furthermore, the first locking assembly further includes a first gasket. One end of the lock ring is fixed to the first gasket by riveting and is limited at the lower end of the first mounting hole.

[0012] The first locking assembly further includes a first gasket. The first gasket and the end of the lock ring exposed outside the through hole of the shrapnel fastening seat are riveted together. The outer diameter of the first gasket is larger than the diameter of the first mounting hole, which limits the lock ring and prevents the lock ring from accidentally coming out when adjusting the position in the Z direction.

[0013] Furthermore, the second locking assembly includes an adjusting nut and a second gasket. The adjusting nut is rotatably sleeved in the second mounting hole, and its lower end and the second gasket are jointly fixed to the substrate by riveting. The second gasket is clamped between the lower end surface of the substrate and the lower end of the adjusting nut. An adjusting thread is provided on the outer circumferential surface of the lower part of the other end of the lock ring. The adjusting nut is threadedly rotatably sleeved on the adjusting thread at the lower part of the other end of the lock ring.

[0014] The adjusting nut of the second locking assembly is sleeved in the second mounting hole, and its lower end and the second gasket are riveted and fixed to the lower end surface of the substrate. The second gasket is pressed between the substrate and the lower end of the adjusting nut. The adjusting nut is completely fixed to the substrate and will not become loose. At this time, the adjusting nut is fixed to the substrate and can rotate freely in the circumferential direction. An adjusting thread is provided on the outer circumferential surface of the other end of the lock ring and is screwed into the adjusting nut for fixation. When it is necessary to adjust the Z-direction position of the lock ring, loosen the fastening nut of the first locking assembly to make the four fastening claws of the shrapnel fastening seat and the lock ring become in clearance fit. The lock ring can move in the Z direction in the fastening nut. Rotate the adjusting nut counterclockwise to realize the upward adjustment of the lock ring in the Z direction; rotate the adjusting nut clockwise to realize the downward adjustment of the lock ring in the Z direction. After the adjustment is completed, rotate the fastening nut clockwise until the four fastening claws of the shrapnel fastening seat firmly hold the lock ring.

[0015] Further, at least two adjustment holes are provided on the substrate. The adjustment holes are respectively arranged on both sides of the central connection line of the first mounting hole and the second mounting hole, and each adjustment hole is an oblong hole.

[0016] The first mounting hole and the second mounting hole are arranged at different positions on the substrate according to the mounting positions of the engine hood locks of different vehicle models. The number and positions of the adjustment holes on the substrate are also arranged at different positions according to the positions of the first mounting hole and the second mounting hole to meet the needs of different vehicle models and improve the versatility of the engine hood lock ring and the engine hood lock.

[0017] Further, the shrapnel fastening seat is a split structure, including a clamping part and a mounting seat. The clamping part is a ring structure and four fastening claws are circumferentially arranged at the top end thereof. A through hole is provided at the center of the mounting seat. The lower end of the mounting seat is riveted and fixed on the first mounting hole of the substrate. The lower end of the clamping part is sleeved inside the upper end of the mounting seat. One end of the lock ring is sleeved inside the mounting seat and the end of one end of the lock ring is exposed outside the lower end of the mounting seat. External threads are provided on the outer circumferential surface of the upper end of the mounting seat.

[0018] The shrapnel fastening seat can be a split structure. The clamping part is fixedly installed on the mounting seat at the lower end. The clamping part is a ring structure and four fastening claws are circumferentially arranged at its top end. External threads are provided on the outer circumferential surface of the upper end of the mounting seat and can be screwed and fixed with a fastening nut.

[0019] An engine hood lock includes the engine hood lock ring described above.

[0020] An engine hood includes the engine hood lock described above.

[0021] A vehicle includes the engine hood described above.

[0022] Compared with the prior art, the present utility model has the following beneficial effects:

[0023] 1. The double locking component design of the present utility model can overcome the disadvantages that the lock ring in the prior art has a structure with a locking component only on one side, which is prone to abnormal noise and low strength during use;

[0024] 2. The fastening nut of the first locking component of the present utility model cooperates with the shrapnel fastening seat to lock, which can completely tighten the lock ring, and has a good locking effect. Moreover, the lower end of the shrapnel fastening seat is riveted on the substrate, which can prevent the shrapnel fastening seat from loosening due to vibration during driving and affecting the locking effect;

[0025] 3. The adjusting nut of the second locking assembly of the present utility model and the second gasket are press riveted on the substrate, which can ensure that the adjusting nut will not become loose due to vibration. While the adjusting nut is restricted on the substrate, it can move freely in the circumferential direction. When adjusting the Z-direction position of the locking ring, after loosening the first locking assembly, the Z-direction position of the locking ring threadedly connected thereto is changed by rotating the adjusting nut, realizing the adjustment of the surface difference between the engine hood and the surrounding parts, and solving the problems of difficult and time-consuming adjustment of the surface difference of the engine hood;

[0026] 4. There are also two adjusting holes on the substrate of the present utility model. Both of the two adjusting holes are oblong holes, and the purpose of adjusting the Y-direction position of the engine hood locking ring can be achieved by adjusting the position of the locking piece fixed in the adjusting holes;

[0027] 5. The positions of the first mounting hole, the second mounting hole and the adjusting hole of the present utility model can be set according to the mounting position of the engine hood lock of the vehicle model used, improving the versatility of the engine hood lock and the engine hood locking ring, with simple structure, simple adjustment and low cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 is the overall structural schematic diagram when the elastic piece fastening seat of the present utility model is an integral structure;

[0029] Figure 2 is the sectional structural schematic diagram when the elastic piece fastening seat of the present utility model is an integral structure;

[0030] Figure 3 is the structural schematic diagram of the elastic piece fastening seat of the present utility model;

[0031] Figure 4 is the overall structural schematic diagram when the elastic piece fastening seat of the present utility model is a split structure;

[0032] Figure 5 is the sectional structural schematic diagram when the elastic piece fastening seat of the present utility model is a split structure;

[0033] Figure 6 is the structural schematic diagram of the clamping part when the elastic piece fastening seat of the present utility model is a split structure.

[0034] In the figure:

[0035] 1. Substrate; 1.1. First mounting hole; 1.2. Second mounting hole; 1.3. Adjusting hole; 2. Locking ring; 2.1. End of the locking ring connecting the elastic piece fastening seat; 2.2. Adjusting thread; 3. Double locking assembly; 3.1. First locking assembly; 3.2. Second locking assembly; 3.3. Fastening nut; 3.4. Elastic piece fastening seat; 3.5. Fastening claw; 3.6. First gasket; 3.7. Adjusting nut; 3.8. Second gasket; 3.9. Clamping part; 3.10. Mounting seat. Detailed implementation mode

[0036] In order to make the objectives, technical solutions and advantages of the present utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0037] The terms used in the present utility model are only for the purpose of describing specific embodiments, and are not intended to limit the present utility model. The singular forms of "a", "said" and "the" used in the present utility model and the appended claims are also intended to include the plural forms, unless the context clearly indicates otherwise. "Plural" generally includes at least two.

[0038] It should be noted that the orientation or positional relationship indicated by the terms "front", "rear", "inner", "outer", etc. in the present utility model is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a limitation to the present utility model.

[0039] In particular, it should be noted that the symbols and / or numbers existing in the specification, if not marked in the drawings description, are not drawing reference numerals.

[0040] For the embodiments provided by the present utility model, namely embodiments of an engine hood lock ring, an engine hood lock, an engine hood and an automobile, the following will be combined with Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 are described in detail.

[0041] Embodiment 1:

[0042] As shown in Figure 1 , an engine hood lock ring includes a base plate 1, a lock ring 2 and a double locking assembly 3. First mounting holes 1.1 and second mounting holes 1.2 are provided diagonally on the base plate 1. The lock ring 2 is a U-shaped ring. The double locking assembly 3 includes a first locking assembly 3.1 and a second locking assembly 3.2. The lower ends on both sides of the lock ring 2 can be respectively limited and movably sleeved in the first mounting hole 1.1 and the second mounting hole 1.2 and can be locked and fixed to the base plate 1 through the corresponding first locking assembly 3.1 and second locking assembly 3.2.

[0043] As shown in Figure 2As shown, the first locking assembly 3.1 includes a fastening nut 3.3 and a spring plate fastening seat 3.4. The spring plate fastening seat 3.4 is fixedly connected within the first mounting hole 1.1. A through hole is provided at the center of the spring plate fastening seat 3.4. The lower part of one end of the lock ring 2 is movably sleeved within the through hole of the spring plate fastening seat 3.4 and its end 2.1 is exposed outside the through hole. An external thread is provided on the outer circumferential wall of the middle part of the spring plate fastening seat 3.4. The fastening nut 3.3 is screwed and fixed to the upper end of the spring plate fastening seat 3.4. The lower part of one end of the lock ring 2 is locked onto the spring plate fastening seat 3.4.

[0044] See Figure 3 As shown, the spring plate fastening seat 3.4 includes four fastening claws 3.5. The four fastening claws 3.5 are circumferentially arranged at the top of the spring plate fastening seat 3.4. Each fastening claw 3.5 can be in close contact with the outer circumferential surface of the lower part of one end of the lock ring 2. The lower end of the spring plate fastening seat 3.4 is press riveted and fixed to the first mounting hole 1.1 of the base plate 1.

[0045] The first locking assembly 3.1 further includes a first gasket 3.6. The end 2.1 of one end of the lock ring 2 is press riveted and fixed to the first gasket 3.6 and is limited at the lower end of the first mounting hole.

[0046] The second locking assembly 3.2 includes an adjusting nut 3.7 and a second gasket 3.8. The adjusting nut 3.7 is rotatably sleeved within the second mounting hole 1.2 and its lower end and the second gasket 3.8 are jointly press riveted and fixed to the base plate 1. The second gasket 3.8 is clamped between the lower end surface of the base plate 1 and the lower end of the adjusting nut 3.7. An adjusting thread 2.2 is provided on the outer circumferential surface of the other end of the lock ring 2. The adjusting nut 3.7 is threadedly rotatably sleeved on the adjusting thread 2.2 at the lower part of the other end of the lock ring 2.

[0047] See Figure 1 As shown, two adjusting holes 1.3 are also diagonally arranged on the base plate 1. The two adjusting holes 1.3 are respectively arranged on both sides of the central connection line of the first mounting hole 1.1 and the second mounting hole 1.2. Each adjusting hole 1.3 is an oblong hole.

[0048] In this embodiment, the number of fastening claws of the spring plate fastening seat is set to four, which is an optimal solution. Two fastening claws can only meet the requirement of clamping the lock ring, but it is not the best solution; according to the different installation positions of the engine hood lock of different vehicle models, the installation positions of the first mounting hole 1.1 and the second mounting hole 1.2 are different, and at the same time, the number and installation positions of the adjusting holes are also different to meet the needs of different vehicle models. In this embodiment, the first mounting hole 1.1 and the second mounting hole 1.2 are respectively arranged at two diagonals of the base plate 1. Two adjusting holes 1.3 are respectively provided at the other two diagonals of the base plate 1. Both adjusting holes are oblong holes.

[0049] Embodiment 2:

[0050] See Figure 4As shown in the figure, an engine hood lock ring includes a base plate 1, a lock ring 2, and a double locking assembly 3. The base plate 1 is provided with a first mounting hole 1.1 and a second mounting hole 1.2. The lock ring 2 is a U-shaped ring. The double locking assembly 3 includes a first locking assembly 3.1 and a second locking assembly 3.2. The lower ends on both sides of the lock ring 2 can be respectively limited and movably sleeved in the first mounting hole 1.1 and the second mounting hole 1.2, and can be locked and fixed to the base plate 1 through the corresponding first locking assembly 3.1 and second locking assembly 3.2.

[0051] See Figure 5 As shown in the figure, the first locking assembly 3.1 includes a fastening nut 3.3 and a spring plate fastening seat 3.4. The spring plate fastening seat 3.4 is fixedly connected in the first mounting hole 1.1. A through hole is provided at the center of the spring plate fastening seat 3.4. The lower part of one end of the lock ring 2 can be movably sleeved in the through hole of the spring plate fastening seat 3.4, and its end 2.1 is exposed outside the through hole. An external thread is provided on the outer circumferential wall of the middle part of the spring plate fastening seat 3.4. The fastening nut 3.3 is screwed and fixed to the upper end of the spring plate fastening seat 3.4, and the lower part of one end of the lock ring 2 is locked to the spring plate fastening seat 3.4.

[0052] The spring plate fastening seat 3.4 includes four fastening claws 3.5. The four fastening claws 3.5 are circumferentially arranged at the top of the spring plate fastening seat 3.4. Each fastening claw 3.5 can be in close contact with the outer circumferential surface of the lower part of one end of the lock ring 2. The lower end of the spring plate fastening seat 3.4 is press riveted and fixed to the first mounting hole 1.1 of the base plate 1.

[0053] The first locking assembly 3.1 further includes a first gasket 3.6. The end 2.1 of one end of the lock ring 2 is press riveted and fixed to the first gasket 3.6 and is limited at the lower end of the first mounting hole.

[0054] The second locking assembly 3.2 includes an adjusting nut 3.7 and a second gasket 3.8. The adjusting nut 3.7 is rotatably sleeved in the second mounting hole 1.2, and its lower end and the second gasket 3.8 are jointly press riveted and fixed to the base plate 1. The second gasket 3.8 is clamped between the lower end surface of the base plate 1 and the lower end of the adjusting nut 3.7. An adjusting thread 2.2 is provided on the outer circumferential surface of the lower part of the other end of the lock ring 2. The adjusting nut 3.7 is threadedly rotatably sleeved on the adjusting thread 2.2 of the lower part of the other end of the lock ring 2.

[0055] See Figure 4 As shown in the figure, three adjusting holes 1.3 are further provided on the base plate 1. The three adjusting holes 1.3 are respectively arranged on both sides of the center connection line of the first mounting hole 1.1 and the second mounting hole 1.2. Each adjusting hole 1.3 is an oblong hole.

[0056] See Figure 6As shown, the shrapnel fastening seat 3.4 is a split structure, including a clamping part 3.9 and a mounting seat 3.10. The clamping part 3.9 is an annular structure, and four fastening claws 3.5 are circumferentially arranged at the top end thereof. A through hole is provided at the center of the mounting seat 3.10. The lower end of the mounting seat 3.10 is press riveted and fixed on the first mounting hole 1.1 of the substrate 1. The lower end of the clamping part 3.9 is sleeved inside the upper end of the mounting seat 3.10. One end of the lock ring 2 is sleeved inside the mounting seat 3.10, and the end 2.1 of one end of the lock ring 2 is exposed outside the lower end of the mounting seat 3.10. External threads are provided on the outer circumferential surface of the upper end of the mounting seat 3.10.

[0057] In this embodiment, the first mounting hole 1.1 and the second mounting hole 1.2 are horizontally arranged in the middle of the substrate 1, and the connection line of the center points of the two is parallel to the two corresponding horizontal sides of the substrate 1. Two adjusting holes 1.3 are respectively provided at three of the corners of the substrate 1, and all three adjusting holes are oblong holes. The shrapnel fastening seat 3.4 in this embodiment is a split structure, including a clamping part 3.9 and a mounting seat 3.10. The clamping part 3.9 is an annular structure, and four fastening claws 3.5 are circumferentially arranged at the top end thereof. The lower end of the clamping part 3.9 is fixedly connected to the mounting seat 3.10. External threads are provided on the outer circumferential surface of the upper end of the mounting seat 3.10. This embodiment is designed to meet the needs of another vehicle model.

[0058] Embodiment 3:

[0059] The present utility model also provides an engine hood lock, including the engine hood lock ring described above.

[0060] Embodiment 4:

[0061] The present utility model also provides an engine hood, including the engine hood lock described above.

[0062] Embodiment 5:

[0063] The present utility model also provides a vehicle, including the engine hood described above.

[0064] The above embodiments are only used to illustrate the technical solutions of the present utility model, rather than to limit it; although the present utility model has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the various embodiments of the present utility model.

Claims

1. An engine hood lock ring, characterized in that: The invention comprises a base plate (1), a locking ring (2) and a double locking assembly (3); the base plate (1) is provided with a first mounting hole (1.1) and a second mounting hole (1.2); the locking ring (2) is a U-shaped ring; the double locking assembly (3) comprises a first locking assembly (3.1) and a second locking assembly (3.2); the lower ends of both sides of the locking ring (2) can be respectively limitedly moved and sleeved in the first mounting hole (1.1) and the second mounting hole (1.2) and can be locked and fixed on the base plate (1) by the corresponding first locking assembly (3.1) and the second locking assembly (3.2).

2. The engine hood lock ring according to claim 1, characterized in that: The first locking assembly (3.1) comprises a fastening nut (3.3) and a spring fastening seat (3.4); the spring fastening seat (3.4) is fixedly connected to the first mounting hole (1.1); a through hole is provided at the center of the spring fastening seat (3.4); the lower part of one end of the locking ring (2) is movably sleeved in the through hole of the spring fastening seat (3.4) and its end (2.1) is exposed outside the through hole; an external thread is provided on the outer circumferential wall in the middle of the spring fastening seat (3.4); the fastening nut (3.3) is screwed and fixed to the upper end of the spring fastening seat (3.4); and the lower part of one end of the locking ring (2) is locked on the spring fastening seat (3.4).

3. The engine hood lock ring according to claim 2, characterized in that: The spring-type fastening seat (3.4) comprises at least two fastening claws (3.5), which are circumferentially arranged at the top of the spring-type fastening seat (3.4), and each of the fastening claws (3.5) can be tightly contacted with the outer circumferential surface of the lower part of one end of the locking ring (2). The lower end of the spring-type fastening seat (3.4) is fixed to the first mounting hole (1.1) of the base plate (1) by riveting.

4. The engine hood lock ring according to claim 3, characterized in that: The first locking assembly (3.1) further comprises a first gasket (3.6), and a terminal end (2.1) at one end of the locking ring (2) is fixed to the first gasket (3.6) by riveting and is limited to the lower end of the first mounting hole (1.1).

5. The engine hood lock ring according to claim 4, characterized in that: The second locking assembly (3.2) comprises an adjusting nut (3.7) and a second gasket (3.8); the adjusting nut (3.7) is rotatably sleeved in the second mounting hole (1.2) and its lower end is riveted together with the second gasket (3.8) to be fixed on the base plate (1); the second gasket (3.8) is clamped between the lower end surface of the base plate (1) and the lower end of the adjusting nut (3.7); an adjusting thread (2.2) is provided on the outer circumferential surface of the lower part of the other end of the locking ring (2); the adjusting nut (3.7) is threadably sleeved on the adjusting thread (2.2) at the lower part of the other end of the locking ring (2).

6. The engine hood lock ring according to claim 5, characterized in that: The base plate (1) is also provided with at least two adjustment holes (1.3), the adjustment holes (1.3) being respectively arranged on both sides of a center line connecting the first mounting hole (1.1) and the second mounting hole (1.2), and each of the adjustment holes (1.3) is an oblong hole.

7. The engine hood lock ring according to claim 6, characterized in that: The spring fastening seat (3.4) is a split structure, comprising a clamping portion (3.9) and a mounting seat (3.10); the clamping portion (3.9) is an annular structure and has four fastening claws (3.5) arranged circumferentially on its top end; a through hole is arranged at the center of the mounting seat (3.10); the lower end of the mounting seat (3.10) is fixed to the first mounting hole (1.1) of the base plate (1) by riveting; the lower end of the clamping portion (3.9) is sleeved in the upper end of the mounting seat (3.10); one end of the locking ring (2) is sleeved in the mounting seat (3.10) and the end (2.1) of one end of the locking ring (2) is exposed outside the lower end of the mounting seat (3.10); and an external thread is arranged on the outer circumferential surface of the upper end of the mounting seat (3.10).

8. An engine hood lock, characterized in that: Comprising an engine hood locking ring as claimed in any one of claims 1 to 7.

9. An engine hood, characterized in that: Including the hood lock as claimed in claim 8.

10. An automobile, characterized in that: Comprising the engine hood as claimed in claim 9.

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