Locking mechanism and automobile

Abstract

The utility model provides a locking mechanism and car, wherein the locking mechanism comprises: the coupling plate includes first coupling plate and second coupling plate who sets up oppositely, the pawl is located between first coupling plate and second coupling plate, and is rotatably connected with the upper portion of first coupling plate and second coupling plate, the support unit is at least arranged in one side of pawl, and the side of pawl without the support unit is close to first coupling plate or second coupling plate, when the pawl is pressed from one side of the support unit, the coupling plate on the opposite side of the support unit is abutted with the pawl to provide the counterforce, when the pawl is pressed from the opposite side of the support unit, the support unit is abutted with the pawl or the coupling plate on the side of the support unit to provide the counterforce. The locking mechanism provided by the utility model embodiment does not need to distinguish the installation direction, can adapt to the stress demand of different directions of the two sides of the car body, is favorable for reducing the application difficulty and complexity, and reducing the application cost.

Description

Technical Field

[0001] This utility model relates to the technical field of locking structures, and in particular to a locking mechanism and an automobile. Background Technology

[0002] In the field of automotive locking structures, it is typically necessary to strictly distinguish between the left and right installation directions of the locking mechanism to accommodate the different force requirements of the vehicle body on both sides during a collision. If the installation direction of the locking mechanism is not distinguished, and the left or right locking mechanism is installed on opposite sides, the locking mechanism will be subjected to pressure from opposite sides during a collision, which can easily lead to locking mechanism failure. This not only increases application costs but also affects vehicle safety.

[0003] Therefore, there is an urgent need to provide a locking mechanism that does not require differentiation of installation direction and will not fail under pressure from either side of the vehicle body. Utility Model Content

[0004] The technical problem solved by this utility model is to provide a locking mechanism and a car. The locking mechanism does not need to distinguish between left and right installation directions during installation, and can still ensure locking strength when subjected to pressure from either the left or right side, which is beneficial to improving installation convenience and usage safety.

[0005] To solve the above-mentioned technical problems, this utility model provides a locking mechanism, including: a connecting plate, the connecting plate including a first connecting plate and a second connecting plate disposed opposite to each other; a pawl, the pawl being located between the first connecting plate and the second connecting plate and rotatably connected to the upper part of the first connecting plate and the second connecting plate; a support unit, the support unit being disposed at least on one side of the pawl, the side of the pawl without the support unit being close to the first connecting plate or the second connecting plate; when the pawl is subjected to pressure from one side of the support unit, the connecting plate on the opposite side of the support unit abuts against the pawl to provide a counterforce; when the pawl is subjected to pressure from the opposite side of the support unit, the support unit abuts against the pawl or against the connecting plate on one side of the support unit to provide a counterforce.

[0006] Optionally, the support unit is disposed on the side of the pawl facing the first connecting plate, or on the side of the pawl facing the second connecting plate, or on both sides of the pawl.

[0007] Optionally, the ratchet may also be coated with plastic, wherein the plastic coating covers at least one side of the ratchet, and at least one of the support units is provided on the side where the plastic coating is located.

[0008] Optionally, the support unit includes a protrusion disposed on the lower part of the pawl. When the pawl is subjected to pressure from the opposite side of the support unit, the protrusion abuts against the connecting plate on one side of the support unit to provide a reverse force.

[0009] Optionally, the support unit includes a stop block, which is fixed at least on one side of the connecting plate. When the pawl is subjected to pressure from the opposite side of the support unit, the stop block abuts against the pawl to provide a counterforce.

[0010] Optionally, the support unit further includes a connector, which is fixed at least on one side of the connecting plate. When the pawl is subjected to pressure from the opposite side of the support unit, the connector abuts against the pawl to provide a counterforce.

[0011] Optionally, the stop block and the connector are located on the same side, and the stop block is fixed to the connecting plate by the connector.

[0012] Optionally, the connecting plate located on the same side as the stop and the connector has a recessed portion facing the direction of the pawl, and the stop is fixed to the recessed portion by the connector.

[0013] Optionally, a safety plate is also included, which is disposed between the first connecting plate and the second connecting plate and rotatably connected to the lower part of the first connecting plate and the second connecting plate, and the safety plate engages with the pawl.

[0014] Optionally, the gap width between the support unit and the pawl is smaller than the width of the portion where the pawl and the safety plate engage; the gap width between the support unit and the connecting plate on the same side is smaller than the width of the portion where the pawl and the safety plate engage.

[0015] Optionally, the pawl has a protrusion on its side, and one end of the safety plate abuts against the side of the protrusion to achieve engagement.

[0016] Optionally, the side of the middle portion of the pawl abuts against the side of the safety plate to achieve engagement.

[0017] Optionally, a comfort plate may also be included, wherein the pawl engages with the comfort plate.

[0018] Optionally, the pawl is provided with a hook-shaped part, and the inside of the hook-shaped part has a groove. When the locking mechanism is in the locked state, the groove is used to engage the locking element.

[0019] Optionally, the pawl includes a main pawl and a secondary pawl, with the secondary pawl fixedly mounted on the upper part of the main pawl.

[0020] Optionally, the upper part of the first connecting plate and the upper part of the second connecting plate are connected by a first pin, and the pawl is rotatably connected to the first pin; the lower part of the first connecting plate and the lower part of the second connecting plate are connected by a second pin.

[0021] Accordingly, this utility model embodiment also provides a car that uses the locking mechanism described above.

[0022] Compared with the prior art, the technical solution of this utility model embodiment has the following beneficial effects:

[0023] The locking mechanism provided by this technical solution has a support unit located at least on one side of the pawl, with the side of the pawl without the support unit close to either the first or second connecting plate. When the pawl is subjected to pressure from one side of the support unit, the connecting plate on the opposite side provides support for the pawl, preventing it from deflecting in the direction of pressure. When the pawl is subjected to pressure from the opposite side of the support unit, the support unit fills the gap between the pawl and the connecting plate. When the pawl deflects under force, the support unit abuts against the pawl or against the connecting plate on the same side to provide support, preventing the pawl from deflecting in the direction of pressure and thus preventing it from dislodging and causing the locking mechanism to fail. Therefore, the locking mechanism does not require differentiation of installation direction during installation. Regardless of whether the pressure comes from the first or second connecting plate, the strength of the locking mechanism is guaranteed, improving installation convenience and safety.

[0024] Furthermore, the support unit includes a protrusion disposed on the lower part of the pawl's plastic coating. When the pawl is subjected to pressure from the opposite side of the support unit, the protrusion abuts against the connecting plate on one side of the support unit to provide a counterforce. The pawl is plastic-coated on the outside, and a protrusion is added to the lower part of the plastic coating. Support for the pawl can be achieved with only simple modifications to the plastic coating structure, resulting in a simple structure and low modification cost.

[0025] Furthermore, the support unit includes a stop block, which is fixed at least on one side of the connecting plate. When the pawl is subjected to pressure from the opposite side of the support unit, the stop block abuts against the pawl to provide a counterforce. By using the stop block connected to the connecting plate as a support unit, support force is provided to the pawl, preventing it from deflecting in the direction of force and disengaging from the safety plate, thus preventing locking failure.

[0026] Furthermore, the connecting plate, located on the same side as the stop and the connector, has a recessed portion facing the pawl, and the stop is fixed to the recessed portion by the connector. By designing a recessed portion on the connecting plate, the distance between the stop and the connector and the pawl is reduced, allowing them to engage with the pawl earlier under force to provide support. The modified structure is also simple and low-cost.

[0027] The vehicle provided by this technical solution utilizes the aforementioned locking mechanism, which helps reduce application costs and complexity, and improves vehicle safety. Attached Figure Description

[0028] Figure 1 This is an exploded view of the locking mechanism in one embodiment of the present invention;

[0029] Figure 2 This is a three-dimensional structural schematic diagram of the locking mechanism in one embodiment of the present invention;

[0030] Figure 3 This is a cross-sectional structural schematic diagram of the locking mechanism in one embodiment of the present invention;

[0031] Figure 4 This is a schematic diagram of the internal structure of the locking mechanism in one embodiment of the present invention;

[0032] Figure 5 This is a schematic diagram of the internal structure of the locking mechanism in another embodiment of the present invention. Detailed Implementation

[0033] As described in the background section, the locking mechanisms currently used in automobiles must strictly distinguish the installation directions of the left and right parts in order to cope with the force requirements from different directions on both sides of the vehicle body, which increases the application cost and complexity.

[0034] To address the aforementioned problems, this utility model provides a locking mechanism, including a first connecting plate and a second connecting plate disposed opposite to each other, a pawl, and a support unit. The support unit is at least located on one side of the pawl, and the side of the pawl without the support unit is close to either the first or second connecting plate. With a support unit on at least one side of the pawl and the side without the support unit close to the connecting plate on the same side, when the pawl is subjected to pressure from the same side as the support unit, the connecting plate on the other side can abut against the pawl to provide support. When the pawl is subjected to pressure from the opposite side of the support unit, the support unit can abut against the pawl or the connecting plate on the same side to provide support. Therefore, regardless of whether the pressure comes from the first or second connecting plate, the pawl can be effectively supported, preventing it from deflecting along the pressure direction, dislodging from its original position, and causing the locking mechanism to fail. Thus, the locking mechanism has a free installation direction, can adapt to force requirements from different directions on both sides of the vehicle body, and reduces application costs and complexity.

[0035] To make the above-mentioned objectives, features and beneficial effects of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0036] Figure 1 This is an exploded view of the locking mechanism in one embodiment of the present invention; Figure 2 This is a three-dimensional structural schematic diagram of the locking mechanism in one embodiment of the present invention; Figure 3 This is a cross-sectional structural schematic diagram of the locking mechanism in one embodiment of the present invention; Figure 4 This is a schematic diagram of the internal structure of the locking mechanism in one embodiment of the present invention.

[0037] Reference Figures 1 to 4 The locking mechanism 1 includes: a connecting plate 10, which includes a first connecting plate 11 and a second connecting plate 12 disposed opposite to each other; a pawl 20, which is located between the first connecting plate 11 and the second connecting plate 12 and is rotatably connected to the upper part of the first connecting plate 11 and the second connecting plate 12; and a support unit, which is at least disposed on one side of the pawl 20, and the side of the pawl 20 without the support unit is close to the first connecting plate 11 or the second connecting plate 12; when the pawl 20 is subjected to pressure from one side of the support unit, the connecting plate 10 on the opposite side of the support unit abuts against the pawl 20 to provide a counterforce; when the pawl 20 is subjected to pressure from the opposite side of the support unit, the support unit abuts against the pawl 20 or against the connecting plate 10 on one side of the support unit to provide a counterforce.

[0038] In one embodiment of this utility model, the support unit is disposed on the side of the pawl 20 facing the first connecting plate 11, that is, the support unit is located between the pawl and the first connecting plate 11, and the pawl 20 is close to the second connecting plate 12. When the pawl 20 is subjected to pressure from the side of the first connecting plate 11, since the pawl 20 is close to the second connecting plate 12, the second connecting plate 12 can abut against the pawl 20 to provide a reverse force, preventing the pawl 20 from deviating significantly in the direction of the second connecting plate 12; when the pawl 20 is subjected to pressure from the side of the second connecting plate 12, due to the presence of the support unit, the support unit can abut against the pawl 20 or against the first connecting plate 11 to provide a reverse force, preventing the pawl 20 from deviating significantly in the direction of the first connecting plate 11.

[0039] In another embodiment of this utility model, the support unit is disposed on the side of the pawl 20 facing the second connecting plate 12, that is, the support unit is located between the pawl and the second connecting plate 12, so the pawl 20 is close to the first connecting plate 11. When the pawl 20 is subjected to pressure from the side of the second connecting plate 12, since the pawl 20 is close to the first connecting plate 11, the first connecting plate 11 can abut against the pawl 20 to provide a reverse force, preventing the pawl 20 from deviating significantly in the direction of the first connecting plate 11; when the pawl 20 is subjected to pressure from the side of the first connecting plate 11, due to the presence of the support unit, the support unit can abut against the pawl 20 or against the second connecting plate 12 to provide a reverse force, preventing the pawl 20 from deviating significantly in the direction of the second connecting plate 12.

[0040] In another embodiment of this utility model, the support unit can also be provided on both sides of the pawl 20, that is, a support unit is provided between the first connecting plate 11 and the pawl 20 and between the second connecting plate 12 and the pawl 20. Regardless of whether the pawl 20 is subjected to pressure from the first connecting plate 11 or the second connecting plate 12, the support unit can provide a reverse force to prevent the pawl 20 from deflecting along the direction of the force.

[0041] The aforementioned locking mechanism 1, by providing a support unit on at least one side of the pawl 20, with the side of the pawl 20 without the support unit close to the connecting plate, ensures effective support for the pawl 20 regardless of whether it is subjected to pressure from either the first connecting plate 11 or the second connecting plate 12. This prevents the pawl 20 from deflecting and dislodging in the direction of force, thus preventing the locking mechanism from failing. Therefore, during installation, either the first connecting plate 11 or the second connecting plate 12 can be used as the mounting surface, eliminating the need to distinguish the installation direction. This improves installation convenience and safety, and also helps reduce application costs.

[0042] Continue to refer to Figures 1 to 4The locking mechanism 1 further includes a pawl coated with plastic 40, which covers at least one side of the pawl 20, and at least one support unit is provided on the side where the pawl coated with plastic 40 is located.

[0043] The pawl is covered with plastic coating 40, which can prevent steel wire and other parts from directly contacting the pawl 20, which helps to reduce the noise of the locking mechanism 1 during use, and at the same time helps to strengthen the pawl 20.

[0044] In some embodiments, the pawl 20 is coated with plastic 40 on the side of the pawl 20 facing the first connecting plate 11, or on the side of the pawl 20 facing the second connecting plate 12, or on both sides of the pawl 20.

[0045] When the pawl plastic coating 40 covers the outside of the pawl 20, the thickness of the plastic coating 40 creates a noticeable gap between the pawl 20 and the connecting plate 10 on the same side as the plastic coating 40. When the pawl 20 is subjected to pressure from the opposite side of the plastic coating 40, the pawl 20 cannot contact the connecting plate on the same side and therefore cannot receive support. Consequently, it easily deflects along the direction of force, causing the pawl to disengage and the locking mechanism to fail. Therefore, at least one support unit is provided on the side where the plastic coating 40 is located. This support unit fills the gap between the pawl 20 and the connecting plate. Under pressure, the support unit provides support to prevent the pawl 20 from deflecting along the direction of force, thus preventing the locking mechanism from failing. On the side without the pawl 40, a support unit may or may not be provided. If the side without the pawl 40 is not provided with a support unit, the side of the pawl 20 without a support unit is close to the connecting plate. The contact between the connecting plate and the pawl 20 provides support force, thereby meeting the bidirectional force requirements of the locking mechanism 1.

[0046] In this embodiment, the pawl plastic coating 40 is located on the side of the pawl 20 facing the second connecting plate 12, the support unit is disposed between the pawl 20 and the second connecting plate 12, and the pawl 20 is close to the first connecting plate 11.

[0047] Continue to refer to Figures 1 to 4 In one embodiment of the present invention, the support unit includes a protrusion 41 disposed on the lower part of the pawl 20. When the pawl 20 is subjected to pressure from the opposite side of the support unit, the protrusion 41 abuts against the connecting plate 10 on one side of the support unit to provide a reverse force.

[0048] In this embodiment, since the pawl plastic coating 40 is located between the pawl 20 and the second connecting plate 12, the protrusion 41 is also located between the pawl 20 and the second connecting plate 12. When the pawl 20 is subjected to pressure from the side of the first connecting plate 11, the protrusion 41 abuts against the second connecting plate 12 to provide a reverse force, preventing the pawl 20 from deflecting towards the second connecting plate 12.

[0049] In this embodiment, the protrusion 41 and the pawl plastic coating 40 are integrally formed. By changing the structure of the pawl plastic coating 40, the pawl plastic coating 40 can not only have a noise reduction effect, but also support the pawl 20. The modified structure is simple and low cost.

[0050] In practical implementation, when the pawl 20 is subjected to pressure from the second connecting plate 12, since the pawl 20 is in contact with the first connecting plate 11, the first connecting plate 11 will naturally provide support to prevent the pawl 20 from deflecting in the direction of force, thus the pawl 20 will not disengage from its original position. When the pawl 20 is subjected to pressure from the first connecting plate 11, the pawl 20 will also deflect in the direction of force. The protrusion 41 on the pawl's plastic coating 40 contacts the second connecting plate 12 to provide a reverse force, preventing the pawl 20 from disengaging from its original position and causing the locking mechanism 1 to fail.

[0051] In this embodiment, the pawl 40 is made of plastic material, and similarly, the protrusion 41 is also made of plastic.

[0052] In one embodiment of the present invention, the support unit includes a stop block 61, which is fixed at least on one side of the connecting plate 10. When the pawl 20 is subjected to pressure from the opposite side of the support unit, the stop block 61 abuts against the pawl 20 to provide a reverse force.

[0053] In some embodiments, the stop block 61 can be fixed to the connecting plate 10 on one side by screws, rivets, etc., or the stop block 61 can be connected to the connecting plate 10 on one side by snap-fit, plug-in, etc.

[0054] In this embodiment, the stop 61 is disposed on at least one side of the connecting plate 10, which can also prevent components such as steel wires from directly contacting the connecting plate, thus helping to reduce the noise of the locking mechanism 1 during use.

[0055] In one embodiment of the present invention, the support unit includes a connector 62, which is fixed at least on one side of the connecting plate 10. When the pawl 20 is subjected to pressure from the opposite side of the support unit, the connector 62 abuts against the pawl 20 to provide a reverse force.

[0056] In some embodiments, the connector 62 may be positioned near the upper, middle, or lower part of the pawl 20. Preferably, the connector 62 is positioned near the middle of the pawl 20, which can provide stronger support for the pawl 20 when it is under force.

[0057] In some embodiments, the connector 62 and the stop 61 can be used as a support unit individually, or they can cooperate with each other to be used as a support unit together.

[0058] In this embodiment, the stop 61 is fixed to the second connecting plate 12 by the connector 62. The stop 61 and the connector 62 can fill the gap between the second connecting plate 12 and the pawl 20, and provide a reverse support force for the pawl 20 when under force, so as to prevent the pawl 20 from deflecting and causing the locking mechanism to fail.

[0059] In practice, since the pawl 20 is covered with pawl plastic coating 40, the stop block 61 and the connector 62 actually abut against the pawl plastic coating 40 to provide a reverse force.

[0060] In this embodiment, the stop 61 is a plastic product, and the connector 62 is made of metal material. Specifically, the connector 62 is a metal rivet.

[0061] In one embodiment of the present invention, the connecting plate 10, which is located on the same side as the stop block 61 and the connector 62, has a recessed portion 120 that is recessed toward the pawl 20, and the stop block 61 is fixed to the recessed portion by the connector 62.

[0062] Taking the connection of the stop 61 and the connecting part 62 to the second connecting plate 12 as an example, the recessed part 120 is recessed in the direction of the pawl 20, that is, in the direction of the first connecting plate 11. The distance between the second connecting plate 12 and the pawl 20 at the recessed part 120 is shortened. Therefore, the distance between the stop 61 and the connecting part 62 installed at the recessed part 120 and the pawl 20 is also shortened. When the pawl 20 is under force, the stop 61 and the connecting part 62 can quickly contact the pawl 20 to provide support. The modified structure of the second connecting plate 12 is simple and low-cost, and can be quickly processed and manufactured for practical application.

[0063] In another embodiment of this utility model, the distance between the connecting plate and the pawl can be shortened by using an extended stop and an extended connector.

[0064] In some embodiments, the support unit may include one or a combination of two or more of the following: a protrusion 41, a stop 61, and a connector 62. In this embodiment, the support unit includes both the protrusion 41 located on the pawl-coated 40 and the stop 61 and connector 62 connected to the second connecting plate 12, forming multiple supports. This further improves the locking strength of the locking mechanism 1 when subjected to external impact, ensuring that the locking mechanism 1 will not easily fail and thus improving safety.

[0065] In this embodiment, the gap width between the connector 62 and the pawl 20 is greater than the gap width between the protrusion 41 and the second connecting plate 12.

[0066] Since the pawl 20 is made of plastic and the connector 62 is made of metal, the metal component is more likely to leave an imprint when they come into contact. Therefore, when subjected to a slight impact, the pawl 20 deflects slightly, and the protrusion 41 on the pawl 20 can act as the first layer of support, first contacting the second connecting plate 12 to provide support. The plastic component has a stronger deformation capacity. If the impact is greater, the pawl 20 continues to deflect, and the metal connector 62 contacts the pawl 20 to provide the second layer of support. The metal component has higher strength and can provide stronger support.

[0067] In other embodiments, the gap width between the connector 62 and the pawl 20 may also be equal to the gap width between the protrusion 41 and the second connecting plate 12. When subjected to external impact, the protrusion 41, the stop 61, and the connector 62 simultaneously provide supporting force.

[0068] Continue to refer to Figures 1 to 4 In one embodiment of the present invention, the locking mechanism 1 further includes a safety plate 30, which is disposed between the first connecting plate 11 and the second connecting plate 12 and is rotatably connected to the lower part of the first connecting plate 11 and the second connecting plate 12. The safety plate 30 engages with the pawl 20.

[0069] In one embodiment of the present invention, the upper part of the first connecting plate 11 and the upper part of the second connecting plate 12 are connected by a first pin 13, and the pawl 20 is rotatably connected to the first pin 13; the lower part of the first connecting plate 11 and the lower part of the second connecting plate 12 are connected by a second pin 14, and the safety plate 30 is rotatably connected to the second pin 12.

[0070] The gap between the support unit and the pawl 20 is less than the width of the portion where the pawl 20 and the safety plate 30 engage; or, the gap between the support unit and the connecting plate 10 on the same side is less than the width of the portion where the pawl 20 and the safety plate 30 engage.

[0071] The safety plate 30 engages with the pawl 20 to lock the locking mechanism 1. When the locking mechanism 1 is subjected to an external impact, the pawl 20 is prone to deflection along the direction of the force and disengage from the safety plate 30, causing the locking mechanism 1 to fail. Therefore, the gap between the support unit and the pawl 20, and the gap between the support unit and the connecting plate on the same side, are limited to be less than the width of the engagement portion of the pawl 20 and the safety plate 30, ensuring that the pawl 20 can be supported by the support unit before it disengages from the safety plate 20 under force.

[0072] The width mentioned in this embodiment refers to the dimension along the direction perpendicular to the connecting plate 10.

[0073] In this embodiment, the side of the middle portion of the pawl 20 abuts against the side of the safety plate 30 to achieve engagement.

[0074] In other embodiments, the pawl 20 has a protrusion on its side, and one end of the safety plate 30 abuts against the side of the protrusion to achieve engagement.

[0075] In one embodiment of the present invention, the locking mechanism 1 further includes a comfort plate 31, and the pawl 20 engages with the comfort plate 31.

[0076] In this embodiment, the locking mechanism 1 includes a safety plate 30 and a comfort plate 31. The safety plate 30 is located between the comfort plate 31 and the first connecting plate 11. The safety plate 30 and the comfort plate 31 are rotatably connected to the second pin 14.

[0077] In other embodiments, the locking mechanism 1 may not have a safety plate and a comfort plate, or may only have one of the safety plate and the comfort plate.

[0078] Continue to refer to Figures 1 to 4 In one embodiment of the present invention, the pawl 20 includes a main pawl 21 and a secondary pawl 22, wherein the secondary pawl 22 is fixedly mounted on the upper part of the main pawl 21.

[0079] In this embodiment, the secondary pawl 22 and the main pawl 21 are fixed together by welding to form a pawl assembly, and the secondary pawl 22 is used to enhance the strength of the pawl assembly.

[0080] In this embodiment, the secondary pawl 22 is disposed between the main pawl 21 and the second connecting plate 12, and the upper part of the secondary pawl 22 is rotatably connected to the first pin 13.

[0081] In one embodiment of the present invention, the pawl 20 is provided with a hook-shaped part 23, and the inside of the hook-shaped part 23 has a groove 24. When the locking mechanism 1 is in the locked state, the groove 24 is used to engage the locking member.

[0082] In this embodiment, both the main pawl 21 and the secondary pawl 22 are provided with hook-shaped portions 23, and the slots 24 of the hook-shaped portions 23 are used to lock locking components such as steel wires.

[0083] In this embodiment, the pawl plastic coating 40 covers the outside of the hook-shaped part 23 and covers the inner wall surface of the slot 24, preventing the locking components such as steel wire from directly contacting the safety piece 20 and reducing the noise of the locking mechanism 1 during use.

[0084] In this embodiment, the main pawl 21 engages with the safety plate 30 and the comfort plate 31.

[0085] Specifically, the main pawl 21 engages with the safety plate 30 through the first engagement part 251 and with the comfort plate 31 through the second engagement part 252.

[0086] In this embodiment, the first engaging part 251 is located on the outer side of the middle part of the pawl 20 and engages with the side of the safety plate 30; the second engaging part 252 is located on the inner side of the middle part of the pawl 20 and engages with the side of the comfort plate 31.

[0087] In one embodiment of this utility model, the comfort plate 31 is provided with a spring drive rod 32. One end of the spring drive rod 32 is connected to the ratchet 20 through a tension spring 33. Under the tension of the tension spring 33, the comfort plate 31 and the ratchet 20 are kept in an engaged state. The other end of the spring drive rod 32 is in contact with the safety plate 30. At the same time, the safety plate 30 is connected to the connecting plate 10 through a torsion spring 34. Under the elastic torsional force of the torsion spring 34, the safety plate 30 and the pawl 30 are kept in an engaged state.

[0088] In this embodiment, a bushing 50 is provided inside the torsion spring 34. The torsion spring 34 is connected to the connecting plate 10 via a second pin 14. The bushing 50 is used to prevent direct contact between the torsion spring 34 and the second pin 14, thereby avoiding friction between the torsion spring 34 and the second pin 14 that would cause abnormal noise. Simultaneously, one side of the bushing 50 abuts against the safety plate 30, and the other side of the bushing 50 abuts against the second connecting plate 12. The bushing 50 can limit the displacement of the safety plate 30 and the comfort plate 31 in a direction perpendicular to the connecting plate 10, ensuring that the safety plate 30 and the comfort plate 31 do not wobble or cause abnormal noise in this direction.

[0089] In this embodiment, the bushing 50 is made of plastic.

[0090] Figure 5 This is a schematic diagram of the internal structure of the locking mechanism in another embodiment of the present invention. In another embodiment of the present invention, the pawl 20 may only include the main pawl 21 and exclude the secondary pawl; the remaining structure is the same as in the embodiment provided above, and will not be described again here.

[0091] Accordingly, this utility model embodiment also provides a car that applies the locking mechanism 1 described above.

[0092] The locking mechanism 1 can be used on automotive components that require locking, such as locking the seat back, locking the bottom of the seat, or locking the hood.

[0093] While the present invention has been disclosed above, it is not limited thereto. Any person skilled in the art can make various modifications and alterations without departing from the spirit and scope of the present invention; therefore, the scope of protection of the present invention should be determined by the scope defined in the claims.

Claims

1. A locking mechanism, characterized in that, include: A connecting plate, the connecting plate comprising a first connecting plate and a second connecting plate disposed opposite to each other; A ratchet pawl is located between the first connecting plate and the second connecting plate, and is rotatably connected to the upper part of the first connecting plate and the second connecting plate; A support unit is provided at least on one side of the pawl, and the side of the pawl not provided with the support unit is close to the first connecting plate or the second connecting plate; When the pawl is subjected to pressure from one side of the support unit, the connecting plate on the opposite side of the support unit abuts against the pawl to provide a counterforce. When the pawl is subjected to pressure from the opposite side of the support unit, the support unit abuts against the pawl or against the connecting plate on one side of the support unit to provide a counterforce.

2. The locking mechanism as described in claim 1, characterized in that, The support unit is disposed on the side of the pawl facing the first connecting plate, or on the side of the pawl facing the second connecting plate, or on both sides of the pawl.

3. The locking mechanism as described in claim 2, characterized in that, It also includes a pawl coated with plastic, the pawl being coated with plastic at least covering the outside of one side of the pawl, and at least one of the support units being provided on the side where the pawl is coated with plastic.

4. The locking mechanism as described in claim 3, characterized in that, The support unit includes a protrusion disposed on the lower part of the pawl. When the pawl is subjected to pressure from the opposite side of the support unit, the protrusion abuts against the connecting plate on one side of the support unit to provide a reverse force.

5. The locking mechanism as described in claim 1 or 4, characterized in that, The support unit includes a stop block, which is fixed at least on one side of the connecting plate. When the pawl is subjected to pressure from the opposite side of the support unit, the stop block abuts against the pawl to provide a counterforce.

6. The locking mechanism as described in claim 5, characterized in that, The support unit also includes a connector, which is fixed at least on one side of the connecting plate. When the pawl is subjected to pressure from the opposite side of the support unit, the connector abuts against the pawl to provide a counterforce.

7. The locking mechanism as described in claim 6, characterized in that, The stop block and the connector are located on the same side, and the stop block is fixed to the connecting plate by the connector.

8. The locking mechanism as described in claim 7, characterized in that, The connecting plate, located on the same side as the stop and the connector, has a recessed portion facing the direction of the pawl, and the stop is fixed to the recessed portion by the connector.

9. The locking mechanism as described in claim 1, characterized in that, It also includes a safety plate, which is disposed between the first connecting plate and the second connecting plate and is rotatably connected to the lower part of the first connecting plate and the second connecting plate, and the safety plate engages with the pawl.

10. The locking mechanism as described in claim 9, characterized in that, The gap between the support unit and the pawl is smaller than the width of the portion where the pawl and the safety plate engage; the gap between the support unit and the connecting plate on the same side is smaller than the width of the portion where the pawl and the safety plate engage.

11. The locking mechanism as described in claim 9, characterized in that, The pawl has a protrusion on its side, and one end of the safety plate abuts against the side of the protrusion to achieve engagement.

12. The locking mechanism as described in claim 9, characterized in that, The side of the middle part of the pawl abuts against the side of the safety plate to achieve engagement.

13. The locking mechanism as described in claim 1 or 9, characterized in that, It also includes a comfort plate, with the pawl engaging with the comfort plate.

14. The locking mechanism as described in claim 1, characterized in that, The pawl is provided with a hook-shaped part, and the inside of the hook-shaped part has a groove. When the locking mechanism is in the locked state, the groove is used to engage the locking element.

15. The locking mechanism as described in claim 1, characterized in that, The pawl includes a main pawl and a secondary pawl, with the secondary pawl fixedly mounted on the upper part of the main pawl.

16. The locking mechanism as described in claim 1, characterized in that, The upper part of the first connecting plate and the upper part of the second connecting plate are connected by a first pin, and the pawl is rotatably connected to the first pin; the lower part of the first connecting plate and the lower part of the second connecting plate are connected by a second pin.

17. A car, characterized in that, The automotive application describes the locking mechanism as claimed in any one of claims 1 to 16.

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