A locking assembly

Abstract

The application discloses a locking assembly, which comprises a mounting part, a lock body, an elastic body, a driving body and a lock tongue. The elastic body is arranged below the lock tongue. The driving body can drive the lock tongue to move along the central axis of the elastic body to the lock body. The mounting part is provided with a cavity. The elastic body and the lock tongue are accommodated in the cavity. The lock tongue is engaged with the driving body. The locking assembly has simple structure. The transmission force is only transferred once, so that the transmission efficiency is high. The control precision and structural stability are greatly improved. The driving body and the lock tongue are engaged in the transmission mode. When the driving body is upwardly driven, the lock tongue is retracted. When the driving body is downwardly driven, the lock tongue is extended. The transformation is longitudinal. The control direction is simple, and the application habit of the user is met.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of lock, in particular to a locking assembly. BACKGROUND

[0002] The locking assembly is widely used in the field of lock, and the opening and closing of the lock are realized by controlling the extension and contraction of the lock tongue. The most important evaluation standard of the locking assembly is the anti-misoperation performance and the reliability after locking. The existing locking assembly mainly has the following problems: 1. The size of the trigger part is too large, which is easy to misoperate; 2. The trigger part is too hidden, which is not conducive to the user to conveniently control the lock tongue; 3. The mechanical control structure is too complex, and there is a transmission dead point; 4. After long-term use, the control precision is reduced due to wear and mechanical fatigue, and it is not convenient to replace new parts. Therefore, it is necessary to balance between reliability and convenience, and further simplify the transmission structure, which is the main direction of the current research and development of the locking assembly. SUMMARY

[0003] In view of the above technical problems, the present application provides a locking assembly, which comprises:

[0004] The installation part, the lock body, the elastic body, the driving body and the lock tongue are provided, the elastic body is arranged below the lock tongue, the driving body can drive the lock tongue to move along the central axis direction of the elastic body to the lock body, the installation part is provided with a cavity, the elastic body and the lock tongue are accommodated in the cavity, the lock tongue is engaged with the driving body, the lock tongue comprises a tooth groove section, the tooth groove section is provided with a tooth groove surface, the driving body comprises an engagement surface and a driving surface, the tooth groove surface is engaged with the engagement surface, the tooth groove surface is provided with a tooth groove, and the engagement surface is provided with a tooth.

[0005] The driving principle of the present application is that the driving body drives the lock tongue to move along the central axis direction of the elastic body, so as to control the distance between the lock tongue and the lock body, realize the opening and closing, and the lock tongue is retracted by upward driving, and the lock tongue is extended by downward driving. Both are longitudinal transformation, the control direction is simple, and it is more in line with the use habit of the user.

[0006] The elastic body in the present application can be various forms of elastic body, including any hydraulic, pneumatic, mechanical transmission, electric and other power generation modes that can realize rebound. However, it is necessary to ensure that the elastic body maintains a certain amount of elastic potential energy in the closed and opened states of the lock tongue, that is, the elastic body is always in a state of being pressed. Even in the state that the lock tongue is completely extended to realize the closure of the lock body, the amount of elastic potential energy stored in the elastic body can fully ensure that the contact between the top end of the lock tongue and the lower end of the lock body is tight and reliable.

[0007] In a more extreme case, when the locking relationship between the lock tongue and the driving body fails, the elastic body can still rely on its own elastic force to ensure the closure of the lock tongue and the lock body.

[0008] Similarly, due to the presence of the elastic body, the user can obtain good touch and rebound when operating the latch, and can easily confirm the position state of the latch.

[0009] Preferably, a transition surface is arranged between the engagement surface and the pushing surface, the transition surface includes a first transition surface and a second transition surface, the last tooth of the gear teeth engaged with the last tooth groove of the tooth groove section is the last tooth, the surface between the last tooth and its adjacent pushing surface is the first transition surface, the first tooth of the gear teeth farthest from the last tooth is the first tooth, the surface between the first tooth and its adjacent pushing surface is the second transition surface, and the first transition surface does not interfere with the elastic body.

[0010] In order to reduce the collision of parts and prevent the generation of mechanism dead point, the first transition surface cannot interfere with the elastic body below, so the first transition surface can be a bevel, a concave surface, or any convex arc surface that does not collide with the elastic body.

[0011] Preferably, the latch further includes a stepped section and a locking section, the stepped section is arranged at the lower end of the tooth groove section, and the locking section is arranged at the upper end of the tooth groove section, and the stepped section longitudinally limits the elastic body.

[0012] The opening size of the lock body of different locks is different, which also determines the length difference of the locking section. The length of the locking section only needs to be not less than the opening size of the lock body to meet the locking requirement, but considering the extrusion and wear of the head end of the locking section during long-term use, the tooth groove and the gear teeth in the present application are both multiple, and the extension length of the locking section can be adjusted by the gear teeth of the pushing body, so the length of the locking section can be appropriately lengthened.

[0013] In the case of a larger locking object, the lock body needs a larger opening, which is farther away from the position of the latch, and the extension amount of the locking section is also larger. In this application scenario, the locking section is easily subjected to lateral bending stress and shear force when locking. On the one hand, if the locking section material is not rigid enough, it is easy to cause position deviation at the abutting surface, i.e., misalignment of the locking section and the lock body and bending deformation of the locking section. On the other hand, even if the locking section material is excellent in rigidity, the locking section is also easy to break if the bending stress is too large. In summary, the above factors will affect the locking reliability in multiple aspects. Therefore, if the locking assembly needs to be applied in this environment for a long time, a protruding head can be added to the head of the locking section, and a recess is opened at the position of the lock body that is connected to the locking section. After locking, the protruding head is buried in the recess, so that both ends of the locking section are fixed, and the locking reliability is greatly improved.

[0014] Preferably, the outer surface of the tooth groove section is provided with a limiting structure, and the inner wall of the cavity is provided with a sliding groove matched with the limiting structure, the limiting structure extends longitudinally along the outer surface of the tooth groove section and is accommodated in the sliding groove, limiting the movement of the lock tongue and ensuring that the lock tongue does not deviate circumferentially when moving along the central axis of the elastic body.

[0015] The movement of the lock tongue is essentially realized by the movement of the tooth groove section, which is an important precision maintaining structure in the components of the present application due to the engagement with the engagement surface. It is often necessary to be accommodated in the mounting part for protection, so it is destined not to be frequently disassembled and calibrated. Therefore, in order to ensure that the alignment and engagement of the gear teeth and the tooth groove do not deviate, the movement of the tooth groove section needs to be always maintained on a fixed central axis. The limiting structure of the present application is used to achieve this purpose, which ensures that the limiting structure can only move in the fixed sliding groove, so that the movement of the tooth groove section is always in the central axis direction without calibration.

[0016] Preferably, the limiting structure is a protruding strip.

[0017] The number of protruding strips is preferably more than one. When only one protruding strip is designed, the protruding strip is subjected to stress for a long time, which is easy to wear and flatten, eventually affecting the limiting effect.

[0018] Preferably, the elastic body is a spring, and the stepped section is a spring seat, and the spring is sleeved on the spring seat.

[0019] The spring is the simplest technical solution of the elastic body in the present application, which has low cost and can be widely used in simple and small lock applications. The present application adopts the positioning mode that the spring is sleeved on the spring seat, which is convenient for disassembly and replacement after the spring is fatigued.

[0020] Preferably, a chamfer is arranged at the shaft shoulder between the stepped section and the tooth groove section, and the limiting structure extends to the chamfer.

[0021] The chamfer at the shaft shoulder not only provides positioning for the elastic body, but also makes the extension and contraction of the lock tongue more smooth. The limiting structure extends to the chamfer, and the tooth groove section and the stepped section are smoothly transitioned, which greatly reduces the stress concentration of the shaft shoulder position caused by the spring impact during the sliding process of the lock tongue, thereby prolonging the service life of the structure.

[0022] Preferably, the tooth width of the tooth groove is not less than the tooth width of the gear tooth.

[0023] In order to ensure the accuracy of engagement and comply with the principle of reducing the volume of the trigger structure to prevent accidental touch, the width of the gear tooth should not be too wide.

[0024] Preferably, a driving rib is arranged on the driving surface, and the full tooth height of the gear tooth is not less than the rib height of the driving rib.

[0025] The existence of the toggle ridge plays a role in anti-skid when the user triggers the structure, and the existence of the gear tooth plays a role in power driving by engaging with the gear slot, the surface of the gear tooth is the most concentrated position of force in the whole structure of the application, and is the position most prone to fatigue wear, considering the later wear, therefore the full tooth height of the gear tooth should not be too small, and should be as large as possible under the condition of volume, while the ridge height of the toggle ridge should not be too large, and only basic anti-skid is needed, if the ridge height of the toggle ridge is too large, the user will feel obvious strangeness and pain when the skin is contacted, which does not comply with the industrial design principles of people-oriented and function supremacy.

[0026] Preferably, the spring is a convex spiral spring with the diameter decreasing towards both ends.

[0027] If the elastic body of the application uses a spring, the spring is more preferably a convex spiral spring, and the use of a spring as the elastic body in the application is often in the case that the lock itself has a small volume, which is destined to have limited installation space for the spring in the installation part, in the case of limited axial space, in order to obtain the maximum compression elasticity, the nonlinear characteristics of the convex spiral spring fully demonstrate its absolute advantage compared to the linear spring, the density changes, the elasticity coefficient is not a fixed value, the stiffness changes with the displacement, the greater the deformation of the convex spiral spring, the greater the stiffness, with the increase of the deformation, a larger pressure is needed to deform it, therefore under the condition of the same actuating pressure, the deformation of the convex spiral spring is smaller, the demand for installation space is smaller, and the available height of the spring itself is more.

[0028] In addition, the special shape of the convex spiral spring with narrow ends greatly reduces the possibility of collision and interference with the first transition surface in the application.

[0029] Beneficial effects:

[0030] 1. The locking assembly of the application has a simple structure, the transmission force only undergoes one force transfer, the transmission efficiency is high, and the control accuracy and structural stability are greatly improved.

[0031] 2. The transmission mode of engaging the actuating body with the lock tongue is adopted, the lock tongue is retracted by upward actuating, and the lock tongue is extended by downward actuating, both are longitudinal changes, the control direction is simple, and it is more in line with the use habit of the user.

[0032] 3. The volume of the actuating body relative to the lock tongue is as small as possible without affecting the convenience of use, and the optimal balance between anti-misoperation and operability is obtained.

[0033] 4. The application fully considers the smooth transmission and stress analysis between various components, achieves no structural dead point and part interference, and greatly improves the service life. BRIEF DESCRIPTION OF DRAWINGS

[0034] The application will be further described below with reference to the drawings.

[0035] Figure 1 is a schematic diagram of the overall structure of the application;

[0036] Figure 2 is a perspective view of the application;

[0037] Figure 3 is a schematic diagram of the internal structure of the application;

[0038] Figure 4 is a front view of the internal structure of the application.

[0039] Numerals in the drawings represent:

[0040] 1, locking section 2, tooth groove section 3, stepped section 4, actuating body 5, actuating surface 6, meshing surface 7, first transition surface 8, second transition surface 9, elastic body 10, tooth groove 11, tooth 12, actuating edge 13, convex strip 14, chamfer 15, pin shaft 16, lock body 17, mounting portion 18, sliding groove 19, locking tongue 20, ear plate. DETAILED DESCRIPTION

[0041] The various aspects of the application are further described below.

[0042] Unless otherwise defined or specified, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art. In addition, any methods and materials similar or equivalent to those described herein can be used in the practice of the application.

[0043] The following terms are explained.

[0044] Unless otherwise expressly specified and limited, the term "or" as used herein means "and" as well. The term "and" means the Boolean logical operator "AND", and the term "or" means the Boolean logical operator "OR", and "AND" is a subset of "OR".

[0045] The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used herein, singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. Further, the use of "including", "comprising" and / or "consisting" as used herein is intended to be open-ended, and to mean that the stated features, steps, operations, elements, and / or components are present, but not excluding the presence or addition of one or more other features, steps, operations, elements, components, and / or groups thereof. Terms such as "on", "under", "above" and "below" are used to describe relative positions between elements or structures, and are not intended to denote absolute positions.

[0046] The present disclosure is described in detail by specific specific examples below, and those skilled in the art can easily understand other advantages and effects of the present disclosure from the disclosure. Obviously, the described embodiments are only a part of the embodiments of the present disclosure, not all. The present disclosure can also be implemented or applied by other different specific embodiments, and various modifications or changes can be made based on different views and applications without departing from the spirit of the present disclosure. It should be noted that the following embodiments and features in the embodiments can be combined with each other without conflict. Based on the embodiments in the present disclosure, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present disclosure.

[0047] It should be noted that the various aspects of the embodiments described below are within the scope of the appended claims. It should be apparent that the aspects described herein can be embodied in a wide variety of forms and that any specific structure and / or function described herein is merely illustrative. Based on the disclosure provided, one skilled in the art should appreciate that an aspect described herein can be implemented independently of any other aspects and that two or more of these aspects can be combined in various ways. For example, an apparatus can be implemented or a method can be practiced using any number of the aspects set forth herein. In addition, such an apparatus can be implemented or such a method can be practiced using other structure and / or functionality in addition to or other than one or more of the aspects set forth herein.

[0048] As shown in Figures 1-4 The present application provides a locking assembly, comprising a mounting portion 17, a lock body 16, an elastic body 9, a driving body 4 and a lock tongue 19, the elastic body is arranged below the lock tongue 19, the driving body 4 can drive the lock tongue 19 to move along the central axis direction of the elastic body to the lock body 16, the mounting portion 17 is provided with a cavity, the elastic body 9 and the lock tongue 19 are contained in the cavity, the lock tongue 19 is engaged with the driving body 4, the lock tongue 19 comprises a tooth groove section 2, the tooth groove section 2 is provided with a tooth groove surface, the driving body 4 comprises an engagement surface 6 and a driving surface 5, the tooth groove surface is engaged with the engagement surface 6, the tooth groove surface is provided with a tooth groove 10, and the engagement surface is provided with a gear tooth 11.

[0049] The driving principle of the present application is that the driving body 4 drives the lock tongue 19 to move along the central axis direction of the elastic body 9, so as to control the distance between the lock tongue 19 and the lock body 16, realize opening and closing, upward driving, the lock tongue 19 is retracted, downward driving, the lock tongue 19 is extended, both are longitudinal transformation, the control direction is simple, and it is more in line with the use habit of users.

[0050] The elastic body 9 in the present application can be various forms of elastic body 9, including any hydraulic, pneumatic, mechanical transmission, electric, etc. that can achieve rebound power generation mode. But it is unchanged that the elastic body needs to ensure a certain amount of elastic potential energy storage in the closed and opened state of the lock tongue 19, that is, to ensure that the elastic body is always in a state of pressure, even in the state of the lock tongue 19 fully extended to realize the closure of the lock body 16, the amount of elastic potential energy stored in the elastic body can fully ensure that the contact between the top end of the lock tongue 19 and the lower end of the lock body 16 is tight and reliable.

[0051] In the most extreme case, when the locking relationship between the lock tongue 19 and the actuating body 4 fails, the elastic body 9 can still rely on its own elastic force to ensure the closure of the lock tongue 19 and the lock body 16.

[0052] Similarly, it is also because of the existence of the elastic body 9 that the user can obtain good touch and rebound when operating the lock tongue 19, which facilitates the confirmation of the position state of the lock tongue 19.

[0053] The transition surface is provided between the tooth groove surface and the actuating surface 5, the transition surface includes a first transition surface 7 and a second transition surface 8, the tooth 11 engaged with the tooth groove 10 at the lowermost end of the tooth groove section 2 is the last tooth, the surface between the last tooth and its adjacent actuating surface 5 is the first transition surface 7, the tooth 11 farthest from the last tooth is the first tooth, and the surface between the first tooth and its adjacent actuating surface 5 is the second transition surface 8. The first transition surface 7 does not interfere with the elastic body 9.

[0054] In order to reduce the collision of parts and prevent the generation of mechanism dead point, the above-mentioned first transition surface 7 cannot interfere with the elastic body 9 below, so the first transition surface 7 can be a bevel, a concave surface, and any convex curved surface that does not collide with the elastic body 9.

[0055] Preferably, the lock tongue 19 further includes a stepped section 3 and a locking section 1, the stepped section 3 is arranged at the lower end of the tooth groove section 2, and the locking section 1 is arranged at the upper end of the tooth groove section 2. The stepped section 3 longitudinally limits the elastic body 9.

[0056] The opening size of the lock body 16 of different locks is different, which also determines the length difference of the locking section 1. The length of the locking section 1 only needs to be not less than the opening size of the lock body 16 to meet the locking requirement, but considering the extrusion and wear of the head end of the locking section 1 in long-term use, the tooth groove 10 and the tooth 11 in the present application are both multiple, and the extension length of the locking section 1 can be adjusted by the tooth 11 of the actuating body 4, so the length of the locking section 1 can be appropriately lengthened.

[0057] In the case of locking a larger object, the lock body 16 needs a larger opening, and the extension of the locking section 1 is also larger. In such application scenarios, the locking section 1 is prone to lateral bending stress and shear force when locked. On the one hand, if the locking section 1 is not rigid enough, it is easy to cause position deviation at the abutting surface, that is, the locking section 1 is misaligned with the lock body 16 and the locking section 1 is bent and deformed. On the other hand, even if the locking section 1 is excellent in rigidity, it is also easy to break if the bending stress is too large. Therefore, if the lock assembly needs to be used in such an environment for a long time, a protruding head can be added to the head of the locking section 1, and a recess is provided at the position of the lock body 16 that is in abutment with the locking section 1. After locking, the protruding head is embedded in the recess, so that both ends of the locking section 1 are fixed, and the locking reliability is greatly improved.

[0058] As shown in Figure 2 The outer surface of the tooth groove section 2 is provided with a limiting structure, the inner wall of the cavity is provided with a sliding groove 18 matched with the limiting structure, the limiting structure extends longitudinally along the outer surface of the tooth groove section 2 and is accommodated in the sliding groove 18, limiting the movement of the locking tongue 19, and ensuring that the locking tongue 19 does not deviate circumferentially when moving along the central axis of the elastic body 9.

[0059] The movement of the locking tongue 19 is essentially realized by the movement of the tooth groove section 2. Since the tooth groove section 2 is in meshing engagement with the meshing surface 6, it is an important precision maintaining structure among the components in the present application, and often needs to be accommodated in the mounting portion 17 for protection. Therefore, it is impossible to be frequently disassembled and calibrated. Therefore, in order to ensure that the alignment and meshing of the gear teeth 11 and the tooth groove 10 do not deviate, the movement of the tooth groove section 2 needs to be always maintained on a fixed central axis. The limiting structure of the present application is used to achieve this purpose.

[0060] The limiting structure is a protruding strip 13. The number of protruding strips 13 is preferably more than one. When only one protruding strip 13 is designed, the protruding strip 13 is subjected to stress for a long time, which is easy to wear and flatten, eventually affecting the limiting effect.

[0061] The elastic body 9 is a spring, and the stepped section 3 is a spring seat. The spring is sleeved on the spring seat.

[0062] The spring is the simplest technical solution among the elastic bodies 9 in the present application, which is low in cost and can be widely applied in simple and small lock applications. The present application adopts the positioning mode that the spring is sleeved on the spring seat, which is convenient for disassembly and replacement after the spring is fatigued and fails.

[0063] A chamfer 14 is arranged at the shaft shoulder between the stepped section 3 and the tooth groove section 2, and the limiting structure extends to the chamfer 14.

[0064] The chamfer 14 at the shaft shoulder not only provides positioning for the elastic body 9, but also makes the extension and retraction of the lock tongue 19 more smooth. The limiting structure extends to the chamfer 14, and the tooth groove section 2 and the stepped section 3 are smoothly connected, which greatly reduces the stress concentration of the shaft shoulder position caused by the spring impact during the sliding of the lock tongue 19, thereby prolonging the service life of the structure.

[0065] The tooth width of the tooth groove 10 is not less than the tooth width of the gear tooth 11.

[0066] In order to ensure the accuracy of engagement and comply with the principle of reducing the volume of the trigger structure to prevent accidental touch, the width of the gear tooth 11 should not be too wide.

[0067] The actuating edge 12 is arranged on the actuating surface 5, and the full tooth height of the gear tooth 11 is not less than the edge height of the actuating edge 12.

[0068] The actuating edge 12 plays a role in preventing slipping when the user triggers the structure, and the gear tooth 11 plays a role in engaging with the tooth groove 10 to achieve power drive. The surface of the gear tooth 11 is the most concentrated position in the entire structure and is the most prone to fatigue and wear. Therefore, the full tooth height of the gear tooth 11 should not be too small and should be as large as possible within the volume limit. The edge height of the actuating edge 12 should not be too large, and only basic anti-slip is required. If the edge height of the actuating edge 12 is too large, the user will feel a significant difference when touching the skin, which is not in line with the industrial design principles of people-oriented and functional supremacy.

[0069] The spring is a convex spiral spring with a decreasing diameter from both ends.

[0070] If the elastic body 9 of the present application uses a spring, the convex spiral spring is more preferred. The use of a spring as the elastic body 9 in the present application is often in the case where the lock body is small in size, which is destined to have limited installation space for the spring. In the case of limited axial space, in order to obtain maximum compression elasticity, the nonlinear characteristics of the convex spiral spring fully demonstrate its absolute advantage over linear springs. The elasticity coefficient is not a fixed value, and the stiffness changes with displacement. The greater the deformation of the convex spiral spring, the greater the stiffness. With the increase of deformation, a larger pressure is needed to deform it. Therefore, under the same actuating pressure, the deformation of the convex spiral spring is smaller, the demand for installation space is smaller, and the available height of the spring itself is larger.

[0071] In addition, the special shape of the convex spiral spring with narrow ends greatly reduces the possibility of collision and interference with the first transition surface 7 in the present application.

[0072] The toggle body 4 is provided with a pin hole, and a pin shaft 15 is arranged through the pin hole. The pin shaft 15 is arranged in a fixed position, which can be a mounting portion 17, for example Figure 1 The pin shaft 15 can also be fixed by arranging an ear plate 20 on the side of the mounting portion 17, or other external structure separated from the present application, as long as the mounted gear tooth 11 can engage with the gear slot 10. When the locking assembly is operated, the gear tooth 11 is controlled to engage with the gear slot 10 by toggling the toggle edge 12, so as to adjust the extension amount of the locking section 1, control the relative distance between the locking section 1 and the lock body 16, and realize the opening and closing of the lock. When the locking section 1 is retracted, the elastic body 9 below is compressed by pressure. When the locking section 1 is extended, the elastic body 9 is also compressed, so that the lock is opened and closed with a certain rebound amount, so that the end surface of the locking section 1 and the contact surface of the lock body 16 are tightly fitted when locked, and the reliability of the lock is ensured.

[0073] The examples of the embodiments of the present application herein are intended to provide an overall understanding of the embodiments, and are not complete descriptions of all elements and features of the devices and systems using the technology of the present application. Based on the disclosure herein, many other embodiments will become apparent to those skilled in the art, or will be derived from the disclosure herein, and structural and logical changes can be made without departing from the scope of the present application. The drawings are also representative, and are not drawn to scale. Therefore, the specification and drawings should be considered illustrative rather than restrictive.

[0074] The equivalents of the corresponding structures, materials, acts and all method or functional defined steps in the claims are intended to include any structure, material or act for performing the functions in combination with other elements of the specific claims. The description of various embodiments is presented for the purpose of illustration and description, but is not intended to be exhaustive or limiting. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the present application. The embodiments are chosen and described in order to best explain the principles of the present application and its practical application, and to enable others skilled in the art to understand various embodiments and to make various modifications suitable for the particular use contemplated.

[0075] The purpose of the abstract is to enable the reader to quickly determine the nature of the technical disclosure. There is no intention that the abstract be used to limit the scope or me aning of the claims. Also, in the foregoing Detailed Description, various features are grouped together in one or more embodiments for the purpose of streamlining the disclosure. This method of disclosure is not to be interpreted as reflecting an intention that the claimed embodiments are to be more related than the claims themselves permit. Rather, inventive subject matter can be found in less than all features of a single disclosed embodiment. Thus, the claims following the Detailed Description are hereby expressly incorporated into this Detailed Description, with each claim standing on its own as a separately claimed subject matter.

[0076] The above description is only the specific implementation of the present application, but the protection scope of the present application is not limited to this. Any person skilled in the art can easily think of changes or replacements within the technical range disclosed by the present application, which should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A locking assembly, characterized in that: The lock includes a mounting part, a lock body, an elastic body, an actuating body, and a bolt. The elastic body is located below the bolt. The actuating body can drive the bolt to move towards the lock body along the central axis of the elastic body. The mounting part has a cavity in which the elastic body and the bolt are accommodated. The bolt engages with the actuating body. The bolt includes a toothed section with a toothed surface. The actuating body includes a meshing surface and an actuating surface. The toothed surface engages with the meshing surface. The toothed surface has a toothed groove and a toothed tooth. The locking tongue further includes a stepped section and a locking section. The stepped section is located at the lower end of the toothed section, and the locking section is located at the upper end of the toothed section. The stepped section provides longitudinal restraint for the elastic body. The actuating surface is provided with an actuating ridge, and the total tooth height of the gear teeth is not less than the ridge height of the actuating ridge; wherein... The actuating body has a pin hole with a pin shaft passing through it. An ear plate is provided on the side of the mounting part to fix the pin shaft. When the locking assembly is in operation, the engagement position of the gear teeth and the tooth groove is controlled by actuating the actuating ridge, thereby adjusting the extension and retraction of the locking section. The actuating ridge is at least partially exposed on the outside of the ear plate.

2. A locking assembly as described in claim 1, characterized in that: A transition surface is provided between the meshing surface and the actuating surface. The transition surface includes a first transition surface and a second transition surface. The tooth that meshes with the tooth at the bottom of the tooth groove segment is the last tooth. The surface between the last tooth and its adjacent actuating surface is the first transition surface. The tooth furthest from the last tooth is the first tooth. The surface between the first tooth and its adjacent actuating surface is the second transition surface. There is no interference between the first transition surface and the elastic body.

3. A locking assembly as described in claim 2, characterized in that: The outer surface of the toothed section is provided with a limiting structure, and the inner wall of the cavity is provided with a sliding groove adapted to the limiting structure. The limiting structure extends longitudinally along the outer surface of the toothed section and is accommodated in the sliding groove to limit the movement of the locking tongue and ensure that the locking tongue does not shift circumferentially when it moves along the central axis of the elastic body.

4. A locking assembly as described in claim 3, characterized in that: The limiting structure is a convex strip.

5. A locking component as described in any one of claims 2-4, characterized in that: The elastic body is a spring, the stepped section is a spring seat, and the spring is sleeved on the spring seat.

6. A locking component as described in any one of claims 3-4, characterized in that: A chamfer is provided at the shoulder between the stepped section and the toothed section, and the limiting structure extends to the chamfer.

7. A locking assembly as described in any one of claims 1-4, characterized in that: The tooth width of the groove is not less than the tooth width of the gear tooth.

8. A locking assembly as described in claim 5, characterized in that: The spring is a convex helical spring with a coil diameter that decreases towards both ends.

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