Locking structure, locking device and automobile

Abstract

The invention discloses a locking structure, a locking device and an automobile. The locking structure is characterized by comprising a mounting shell, a spring bolt and a crank adjusting mechanism, an accommodating cavity and a rotating base arranged in the accommodating cavity are arranged on the mounting shell; the spring bolt and the crank adjusting mechanism are arranged in the containing cavity, the spring bolt is rotatably connected with the rotating base, and the crank adjusting mechanism is connected with the spring bolt and used for driving the spring bolt to rotate around the rotating base so that the spring bolt can protrude out of the mounting shell or do not protrude out of the mounting shell; when the spring bolt protrudes out of the installation shell, a locking protrusion is formed at one end of the spring bolt, and a locking groove is formed between the other end of the spring bolt and the installation shell. The crank adjusting mechanism drives the spring bolt to rotate around the rotating base, mutual switching between the locking state and the unlocking state can be achieved, additional control and electric parts are not needed, the overall structure is simple, switching operation is easy, and efficiency is high.

Description

Technical Field

[0001] The present invention relates to the technical field of locking structures, and in particular to a locking structure, a locking device and a car. Background Art

[0002] A locking structure is a structure used to achieve a detachable connection between two workpieces or other structures to be assembled. For example, when a locking structure is used in the automotive field, a locking structure is required to achieve a detachable connection between the body and the chassis.

[0003] Existing locking mechanisms often suffer from complex and inefficient locking and unlocking processes. For example, in the automotive industry, a locking mechanism formed by bolts and nuts is used to achieve a detachable connection between the body and chassis. This process requires specialized disassembly and assembly tools, resulting in complex and inefficient operation. Summary of the Invention

[0004] Embodiments of the present invention provide a locking structure, a locking device, and a vehicle to solve the problems of complicated operation and low efficiency in the locking or unlocking process of the existing locking structure.

[0005] A locking structure comprising a mounting housing, a locking tongue and a crank adjustment mechanism;

[0006] The mounting shell is provided with a receiving cavity and a rotating base arranged in the receiving cavity;

[0007] The lock tongue and the crank adjustment mechanism are arranged in the accommodating cavity, the lock tongue is rotatably connected to the rotating base, and the crank adjustment mechanism is connected to the lock tongue, and is used to drive the lock tongue to rotate around the rotating base so that the lock tongue protrudes from the mounting shell or does not protrude from the mounting shell; when the lock tongue protrudes from the mounting shell, a locking protrusion is formed at one end of the lock tongue, and a locking groove is formed between the other end of the lock tongue and the mounting shell.

[0008] Preferably, the crank adjustment mechanism is arranged on one side of the lock tongue along a first direction, and when the crank adjustment mechanism reciprocates along the first direction, the lock tongue is driven to rotate around the rotating base;

[0009] When the locking tongue protrudes from the mounting housing, a locking protrusion is formed at one end of the locking tongue close to the crank adjustment mechanism, and a locking groove is formed between one end of the locking tongue away from the crank adjustment mechanism and the mounting housing.

[0010] Preferably, the crank adjustment mechanism comprises a connecting rod and a sliding assembly;

[0011] The first end of the connecting rod is rotatably connected to the locking tongue, and the second end of the connecting rod is rotatably connected to the sliding assembly;

[0012] The sliding assembly is connected to the mounting housing, and the sliding assembly reciprocates along a first direction, so that the connecting rod drives the lock tongue to rotate around the rotating base, so that the lock tongue protrudes from the mounting housing or does not protrude from the mounting housing.

[0013] Preferably, the sliding assembly includes a slider and a spring;

[0014] The slider is rotatably connected to the second end of the connecting rod;

[0015] The first end of the spring is connected to the mounting housing, and the second end of the spring is connected to the slider, for driving the slider to reciprocate along a first direction.

[0016] Preferably, when the spring is in a natural state, the locking tongue protrudes from the mounting housing;

[0017] When the spring is in a working state, the locking tongue does not protrude from the mounting housing.

[0018] Preferably, the sliding assembly further comprises a spring mounting plate, and the spring mounting plate is arranged on the mounting housing;

[0019] The slider includes a slider body and a spring mounting groove arranged in the slider body;

[0020] The spring is assembled in the spring installation groove, the first end of the spring is connected to the spring installation plate, and the second end of the spring is connected to the slider body.

[0021] Preferably, the sliding assembly further comprises a spring stop bar;

[0022] The first end of the spring blocking rod is connected to the spring mounting plate, and the second end of the spring blocking rod is used to connect with the first end of the spring;

[0023] The outer diameter of the spring blocking rod is smaller than the groove diameter of the spring installation groove, and the outer diameter of the spring blocking rod is larger than the outer diameter of the spring.

[0024] Preferably, the spring stop rod comprises a connecting rod and a stop block;

[0025] The first end of the connecting rod is connected to the spring mounting plate, the second end of the connecting rod is connected to the stopper, and the stopper is connected to the first end of the spring;

[0026] The outer diameter of the stopper is smaller than the groove diameter of the spring installation groove, and the outer diameter of the stopper is larger than the outer diameter of the spring and the outer diameter of the connecting rod.

[0027] Preferably, the mounting housing is further provided with a sliding groove arranged along the first direction;

[0028] The slider further includes a sliding protrusion provided on the slider body, and the sliding protrusion is assembled in the sliding groove.

[0029] Preferably, when the crank adjustment mechanism is in a non-stressed state, the locking tongue protrudes from the mounting housing;

[0030] The locking structure also includes an unlocking mechanism, which is connected to the crank adjustment mechanism and pushes the crank adjustment mechanism to move in a first direction, so that the locking tongue switches from a state of protruding from the mounting shell to a state of not protruding from the mounting shell.

[0031] Preferably, an unlocking hole is provided on a side of the mounting housing close to the sliding assembly;

[0032] The unlocking mechanism includes a driving rod, which is passed through the unlocking through hole and connected to the sliding assembly to push the sliding assembly to move in a first direction, so that the lock tongue switches from a state of protruding from the mounting shell to a state of not protruding from the mounting shell.

[0033] Preferably, the lock tongue comprises a lock tongue body and a lock tongue connector;

[0034] The lock bolt body is provided with a rotation feature that matches the rotation base;

[0035] The locking tongue connecting piece is arranged on a side of the locking tongue body away from the rotation feature, and the locking tongue connecting piece is rotatably connected to the first end of the connecting rod.

[0036] Preferably, the rotating base includes two arc-shaped bases arranged opposite to each other;

[0037] The lock tongue body is a trapezoidal body, and the rotation feature is an arc-shaped groove provided on the first bottom surface of the trapezoidal body, and the arc-shaped groove matches the arc-shaped base;

[0038] The locking tongue connecting piece is arranged on the second bottom surface of the trapezoidal body.

[0039] Preferably, the mounting housing is provided with two first limiting surfaces spaced apart along a first direction, and the two arc-shaped bases are spaced apart perpendicular to the first direction;

[0040] The trapezoidal body further includes two second limiting surfaces spaced apart along the first direction, each second limiting surface being disposed between the first bottom surface and the second bottom surface, and the two arc-shaped grooves being spaced apart perpendicular to the first direction;

[0041] The first limiting surface and the second limiting surface are two arc-shaped surfaces that match each other.

[0042] Preferably, the locking tongue comprises two locking tongue connecting members arranged opposite to each other;

[0043] The slider further includes a connecting protrusion provided on the slider body and two connecting ears extending from the connecting protrusion in the same direction;

[0044] The first end of the connecting rod is assembled on the two locking tongue connecting pieces through a first rotating shaft, and the second end of the connecting rod is assembled on the two connecting ears through a second rotating shaft.

[0045] Preferably, the mounting housing includes a first housing and a second housing;

[0046] The first housing is provided with a first accommodating groove and the rotating base is located in the first accommodating groove;

[0047] The second housing is provided with a second accommodating groove;

[0048] The first shell and the second shell are detachably connected, and the first accommodating groove and the second accommodating groove cooperate to form the accommodating cavity.

[0049] Preferably, the first shell includes a first main body arranged along a first direction, a first connecting portion extending perpendicularly to the first direction from an end of the first main body away from the second shell, and a second connecting portion extending perpendicularly to the first direction from an end of the first main body close to the second shell, the first connecting portion and the second connecting portion being located on both sides of the first main body, and the first accommodating groove and the rotating base being provided on the first main body;

[0050] The second housing includes a second main body arranged along a first direction, a third connecting portion extending from one end of the second main body in a direction perpendicular to the first direction, and a fourth connecting portion extending from the third connecting portion in the first direction, and the second receiving groove is provided on the second main body, the third connecting portion, and the fourth connecting portion;

[0051] The third connection portion is detachably connected to the second connection portion, and the fourth connection portion is detachably connected to the first body and the first connection portion.

[0052] Preferably, the first connecting portion is provided with a limiting protrusion arranged along the first direction, for cooperating with a limiting hole of the other locking structure;

[0053] The second connecting portion is provided with a limiting hole arranged along the first direction for cooperating with a limiting protrusion of another locking structure.

[0054] A locking device comprises the locking structure as described above.

[0055] The mounting housings of the two locking structures are oppositely arranged; the crank adjusting structures of the two locking structures drive the locking latches to rotate around the rotating bases, so that the two locking latches protrude out of the mounting housings or do not protrude out of the mounting housings at the same time.

[0056] When the two locking latches protrude out of the mounting housings at the same time, the locking protrusion of one locking structure is inserted into the locking groove of the other locking structure.

[0057] Preferably, the two crank adjusting mechanisms are respectively arranged on the opposite sides of the two locking latches in the first direction, so that the two crank adjusting mechanisms move towards each other or move away from each other in the first direction, and the two locking latches protrude out of the mounting housings or do not protrude out of the mounting housings at the same time.

[0058] In each of the locking structures, when the locking latch protrudes out of the mounting housing, a locking protrusion is formed on the end of the locking latch close to the crank adjusting mechanism, and a locking groove is formed between the end of the locking latch away from the crank adjusting mechanism and the mounting housing.

[0059] Preferably, when the two crank adjusting mechanisms are in a non-force state, the locking latches protrude out of the mounting housings.

[0060] At least one of the locking structures further comprises an unlocking mechanism connected to the crank adjusting mechanism, which pushes the crank adjusting mechanism to move in the first direction, so that the locking latch is switched from the state of protruding out of the mounting housing to the state of not protruding out of the mounting housing.

[0061] A vehicle comprises a vehicle body and a chassis, and further comprises the locking device as described above.

[0062] The locking device is arranged in the height direction of the vehicle body, one of the locking structures in the locking device is arranged on the vehicle body, and the other locking structure is arranged on the chassis.

[0063] Preferably, a plurality of the locking devices are arranged on the vehicle body and the chassis.

[0064] In the above-mentioned locking structure, locking device, and automobile, the crank adjustment mechanism drives the lock tongue to rotate about the rotating base, thereby causing the lock tongue to protrude from the mounting housing or not. When the lock tongue protrudes from the mounting housing, a locking protrusion and a locking groove are formed between the lock tongue and the mounting housing, which can cooperate with another locking structure, a workpiece, or other structure to be mounted to achieve a locking effect, thereby causing the locking structure to enter a locked state. Conversely, when the lock tongue does not protrude from the mounting housing, no locking protrusion and locking groove are formed between the lock tongue and the mounting housing, causing the locking structure to enter an unlocked state. In other words, by driving the lock tongue to rotate in different directions about the rotating base by the crank adjustment mechanism, the locked and unlocked states can be switched between, resulting in a simple and efficient operation process. BRIEF DESCRIPTION OF THE DRAWINGS

[0065] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments of the present invention. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0066] Figure 1 is a three-dimensional diagram of a locking structure in one embodiment of the present invention;

[0067] Figure 2 is another perspective view of the locking structure in one embodiment of the present invention;

[0068] Figure 3 This is a schematic assembly diagram of a locking structure according to an embodiment of the present invention;

[0069] Figure 4 is another assembly diagram of the locking structure in one embodiment of the present invention;

[0070] Figure 5 is a perspective view of a first housing in one embodiment of the present invention;

[0071] Figure 6 is a side view of the first housing along a first direction in one embodiment of the present invention;

[0072] Figure 7 is a perspective view of the second housing in one embodiment of the present invention;

[0073] Figure 8 is a side view of the second housing along the first direction in one embodiment of the present invention;

[0074] Figure 9 This is a front view of a lock tongue in one embodiment of the present invention;

[0075] Figure 10 is a top view of a lock tongue in one embodiment of the present invention;

[0076] Figure 11 is a front view of a slider in one embodiment of the present invention;

[0077] Figure 12 is a side view of a slider along a first direction in one embodiment of the present invention;

[0078] Figure 13 is a schematic diagram of a locking device in one embodiment of the present invention;

[0079] Figure 14 yes Figure 13 The cross-sectional view along line AA is a schematic diagram of the locking device in a locked state;

[0080] Figure 15 yes Figure 13 The cross-sectional view along line AA is a schematic diagram of the locking device in the unlocked state.

[0081] In the figure: 1. Mounting housing; 101. Rotating base; 102. First limiting surface; 103. Sliding slot; 104. Unlocking hole; 11. First housing; 111. First body; 1111. First connecting hole; 112. First connecting portion; 1121. Second connecting hole; 1122. Limiting protrusion; 113. Second connecting portion; 1131. Third connecting hole; 1132. Limiting hole; 114. First accommodating groove; 115. First sliding slot; 12. Second housing; 121. Second body; 122. Third connecting portion; 1221. Fourth connecting hole; 1222. Connecting through hole; 123. Fourth connecting portion; 1231. Fifth connecting hole; 1232, sixth connecting hole; 124, second accommodating groove; 125, second sliding groove; 2, lock tongue; 21, lock tongue body; 211, rotation feature; 212, second limiting surface; 22, lock tongue connector; 3, crank adjustment mechanism; 31, connecting rod; 32, sliding assembly; 321, slider; 3211, slider body; 3212, spring mounting groove; 3213, sliding protrusion; 3214, connecting protrusion; 3215, connecting ear; 322, spring; 323, spring mounting plate; 324, spring stop rod; 3241, connecting rod; 3242, block; 41, locking protrusion; 42, locking groove. DETAILED DESCRIPTION

[0082] In order to make the technical problems, technical solutions and beneficial effects solved by the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0083] In the description of the present invention, it should be understood that the terms "longitudinal", "radial", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended only to facilitate the description of the present invention and simplify the description. They do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be understood as limiting the present invention. In the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0084] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0085] The embodiment of the present invention provides a locking structure, such as Figure 1-Figure 4 As shown, the locking structure includes a mounting shell 1, a lock tongue 2 and a crank adjustment mechanism 3; the mounting shell 1 is provided with a accommodating cavity and a rotating base 101 arranged in the accommodating cavity; the lock tongue 2 and the crank adjustment mechanism 3 are arranged in the accommodating cavity, the lock tongue 2 is rotatably connected to the rotating base 101, and the crank adjustment mechanism 3 is connected to the lock tongue 2, and is used to drive the lock tongue 2 to rotate around the rotating base 101 so that the lock tongue 2 protrudes from the mounting shell 1 or does not protrude from the mounting shell 1; when the lock tongue 2 protrudes from the mounting shell 1, a locking protrusion 41 is formed at one end of the lock tongue 2, and a locking groove 42 is formed between the other end of the lock tongue 2 and the mounting shell 1.

[0086] The mounting housing 1 is a support member of the locking structure and is used to mount other components of the locking structure. The rotating base 101 is a base provided on the mounting housing 1 and matched with the locking tongue 2 .

[0087] In one example, the locking structure includes a mounting housing 1, a locking tongue 2, and a crank adjustment mechanism 3. The mounting housing 1 is provided with a housing cavity and a rotating base 101, which is disposed within the housing cavity. In this example, the rotating base 101 can be a cylindrical or semi-cylindrical base disposed within the housing cavity. The rotating base 101 has a curved surface to facilitate engagement with the locking tongue 2, allowing the locking tongue 2 to rotate about the rotating base 101.

[0088] As an example, the lock tongue 2 is disposed in the accommodating cavity of the mounting housing 1, and the lock tongue 2 can rotate around the rotating base 101 so that it protrudes from the mounting housing 1 or does not protrude from the mounting housing 1. In this example, when the lock tongue 2 rotates around the rotating base 101 in a rotation direction (e.g., clockwise), a portion of the lock tongue 2 can protrude from the mounting housing 1, so that the lock tongue 2 cooperates with the mounting housing 1 to form a locking protrusion 41 and a locking groove 42. Specifically, one end of the lock tongue 2 protrudes from the mounting housing 1 to form the locking protrusion 41, and the other end of the lock tongue 2 forms a locking groove 42 between the mounting housing 1. The locking protrusion 41 is used to cooperate with another locking structure, workpiece, or other structure to be mounted that is provided with the locking groove 42 to achieve a locking effect, and / or the locking groove 42 can cooperate with another locking structure, workpiece, or other structure to be mounted that is provided with the locking protrusion 41 to achieve a locking effect. Accordingly, when the lock tongue 2 rotates in another rotational direction (e.g., counterclockwise) around the rotating base 101, the lock tongue 2 does not protrude from the mounting housing 1, even if the lock tongue 2 is completely located in the accommodating cavity. At this time, the contact plane of the lock tongue 2 and the contact plane of the mounting housing 1 are coplanar. The contact plane of the lock tongue 2 and the contact plane of the mounting housing 1 herein are the planes through which the locking structure contacts another locking structure, a workpiece, or other structure to be mounted.

[0089] As an example, the crank adjustment mechanism 3 is arranged in the accommodating cavity of the mounting shell 1 and is connected to the lock tongue 2. It can drive the lock tongue 2 to rotate around the rotating base 101 in a rotation direction, so that part of the lock tongue 2 protrudes from the mounting shell 1, forming a locking protrusion 41 and a locking groove 42, so that it can be locked with another locking structure, workpiece or other structure to be installed that is provided with a locking groove 42 and a locking protrusion 41, respectively. At this time, the locking structure enters a locked state; or, the lock tongue 2 can be driven to rotate around the rotating base 101 in another rotation direction so that the lock tongue 2 does not protrude from the mounting shell 1, that is, the lock tongue 2 is completely located in the accommodating cavity. At this time, the locking structure enters an unlocked state.

[0090] For example, a locking structure can be used to achieve a detachable connection between the first workpiece and the second workpiece. Specifically, when a locking groove 42 is provided on the first workpiece, the locking structure is fixed to the second workpiece and arranged relative to the first workpiece. When the crank adjustment mechanism 3 of the locking structure drives the lock tongue 2 to rotate around the rotating base 101 so that the lock tongue 2 protrudes from the mounting housing 1, the lock tongue 2 cooperates with the mounting housing 1 to form a locking protrusion 41 and a locking groove 42. At this time, the locking protrusion 41 formed by the locking structure can be inserted into the locking groove 42 of the first workpiece, so that the first workpiece and the second workpiece enter a locked state; conversely, when the crank adjustment mechanism 3 of the locking structure drives the lock tongue 2 to rotate around the rotating base 101 so that the lock tongue 2 does not protrude from the mounting housing 1, the lock tongue 2 will not be inserted into the locking groove 42 of the first workpiece, so that the first workpiece and the second workpiece enter an unlocked state.

[0091] For example, a locking structure can be used to achieve a detachable connection between the first workpiece and the second workpiece. Specifically, a locking structure is provided on the first workpiece, and another locking structure is provided on the second workpiece, and the two locking structures are arranged relative to each other. When the crank adjustment mechanism 3 of the locking structure drives the lock tongue 2 to rotate around the rotating base 101 so that the lock tongue 2 protrudes from the mounting housing 1, the lock tongue 2 cooperates with the mounting housing 1 to form a locking protrusion 41 and a locking groove 42. The locking protrusion 41 formed by any locking structure can be inserted into the locking groove 42 formed by the other locking structure, so that the two locking structures form an interlocking structure. At this time, the first workpiece and the second workpiece enter a locked state; conversely, when the crank adjustment mechanism 3 of the locking structure drives the lock tongue 2 to rotate around the rotating base 101 so that the lock tongue 2 does not protrude from the mounting housing 1, the two locking structures do not form an interlocking structure. At this time, the first workpiece and the second workpiece enter an unlocked state.

[0092] In this embodiment, the crank adjustment mechanism 3 drives the lock tongue 2 to rotate about the rotating base 101, thereby causing the lock tongue 2 to protrude from the mounting housing 1 or not. When the lock tongue 2 protrudes from the mounting housing 1, a locking protrusion 41 and a locking groove 42 are formed between the lock tongue 2 and the mounting housing 1, which can cooperate with another locking structure, a workpiece, or other structure to be mounted to achieve a locking effect, thereby causing the locking structure to enter a locked state. Conversely, when the lock tongue 2 does not protrude from the mounting housing 1, no locking protrusion 41 and locking groove 42 are formed between the lock tongue 2 and the mounting housing 1, causing the locking structure to enter an unlocked state. In other words, by driving the lock tongue 2 to rotate in different directions about the rotating base 101 by the crank adjustment mechanism 3, the locked state and the unlocked state can be switched between. The operation process is simple and efficient.

[0093] In one embodiment, if Figure 1-Figure 4 As shown, the crank adjustment mechanism 3 is disposed on one side of the lock tongue 2 along a first direction. When the crank adjustment mechanism 3 reciprocates in the first direction, it drives the lock tongue 2 to rotate about the rotating base 101. When the lock tongue 2 protrudes from the mounting housing 1, a locking protrusion 41 is formed on the end of the lock tongue 2 close to the crank adjustment mechanism 3, and a locking groove 42 is formed between the end of the lock tongue 2 away from the crank adjustment mechanism 3 and the mounting housing 1. The first direction here refers to the direction of movement of the crank adjustment mechanism 3.

[0094] As an example, the crank adjustment mechanism 3 is disposed within the accommodating cavity of the mounting housing 1 along a first direction, specifically, on one side of the lock tongue 2 along the first direction. For example, when the first direction is vertical, the crank adjustment mechanism 3 can be disposed on the upper side of the lock tongue 2 or on the lower side of the lock tongue 2. Taking the example of the crank adjustment mechanism 3 being disposed on the upper side of the lock tongue 2, when the lock tongue 2 protrudes from the mounting housing 1, a locking protrusion 41 is formed at the upper end of the lock tongue 2 near the crank adjustment mechanism 3, and a locking groove 42 is formed between the lower end of the lock tongue 2, away from the crank adjustment mechanism 3, and the mounting housing 1. This design allows the two crank adjustment mechanisms 3 to move toward or away from each other along a first direction when the two locking structures cooperate, so that the locking protrusion 41 formed by any locking structure can be inserted into the locking groove 42 formed by the other locking structure, forming an interlocking structure to ensure the tightness of the connection in the locked state. Moreover, when the two locking structures cooperate, the crank adjustment mechanism 3 can be controlled to move toward or away from each other along the first direction to achieve switching between the locked state and the unlocked state. The operation process is simple and efficient.

[0095] In one embodiment, if Figure 3 As shown, the crank adjustment mechanism 3 includes a connecting rod 31 and a sliding assembly 32; the first end of the connecting rod 31 is rotatably connected to the lock tongue 2, and the second end of the connecting rod 31 is rotatably connected to the sliding assembly 32; the sliding assembly 32 is connected to the mounting shell 1, and the sliding assembly 32 reciprocates along the first direction so that the connecting rod 31 drives the lock tongue 2 to rotate around the rotating base 101, so that the lock tongue 2 protrudes from the mounting shell 1 or does not protrude from the mounting shell 1.

[0096] As an example, the crank adjustment mechanism 3 includes a connecting rod 31 and a sliding assembly 32. The connecting rod 31 is arranged in the accommodating cavity, and the first end of the connecting rod 31 is rotatably connected to the lock tongue 2, specifically, the first end of the connecting rod 31 can be hinged to the lock tongue 2; the second end of the connecting rod 31 is rotatably connected to the sliding assembly 32, specifically, the second end of the connecting rod 31 can be hinged to the sliding assembly 32. The sliding assembly 32 is arranged in the accommodating cavity and connected to the inner wall of the mounting shell 1. The sliding assembly 32 can be controlled to reciprocate along the first direction, so that the connecting rod 31 drives the lock tongue 2 to rotate around the rotating base 101, so that the lock tongue 2 protrudes from the mounting shell 1 or does not protrude from the mounting shell 1, so that the locking structure enters a locked state or an unlocked state. The first direction here is the movement direction of the crank adjustment mechanism 3, specifically the sliding direction of its sliding assembly 32.

[0097] For example, when the sliding component 32 is arranged in the mounting shell 1 along the up and down direction (i.e., the first direction), when the sliding component 32 drives the connecting rod 31 to move downward, the lock tongue 2 rotates clockwise around the rotating base 101, so that part of the lock tongue 2 protrudes from the mounting shell 1, so that the lock tongue 2 cooperates with the mounting shell 1 to form a locking protrusion 41 and a locking groove 42, which is used to cooperate with another locking structure, workpiece or other structure to be installed that is provided with a locking groove 42 and / or a locking protrusion 41 for locking. At this time, the locking structure enters a locked state; when the sliding component 32 drives the connecting rod 31 to move upward, the lock tongue 2 rotates counterclockwise around the rotating base 101, so that the lock tongue 2 does not protrude from the mounting shell 1, that is, the lock tongue 2 is completely located in the accommodating cavity. At this time, the locking structure enters an unlocked state. In this example, the sliding assembly 32 reciprocates in a first direction, so that the connecting rod 31 drives the lock tongue 2 to rotate in two opposite directions around the rotating base 101, so that the locking structure enters a locked state or an unlocked state. The operation process is simple and efficient.

[0098] In one embodiment, if Figure 3 As shown, the sliding assembly 32 includes a slider 321 and a spring 322;

[0099] The slider 321 is rotatably connected to the second end of the connecting rod 31; the first end of the spring 322 is connected to the mounting housing 1, and the second end of the spring 322 is connected to the slider 321, for driving the slider 321 to reciprocate along the first direction.

[0100] As an example, the sliding assembly 32 of the crank adjustment mechanism 3 includes a slider 321 and a spring 322. The first end of the connecting rod 31 is rotatably connected to the lock tongue 2, and the second end of the connecting rod 31 is rotatably connected to the slider 321. Specifically, the first end of the connecting rod 31 can be hinged to the lock tongue 2, and the second end of the connecting rod 31 can be rotatably connected to the slider 321. When the slider 321 reciprocates in a first direction, the connecting rod 31 drives the lock tongue 2 to rotate about the rotating base 101, thereby causing the lock tongue 2 to protrude from the mounting housing 1 or not protrude from the mounting housing 1 to switch between a locked state and an unlocked state. The first end of the spring 322 is connected to the mounting housing 1, and the second end of the spring 322 is connected to the slider 321, which is used to drive the slider 321 to reciprocate in the first direction, so that the spring 322 switches between a natural state and an operating state, thereby switching the locking structure between a locked state and an unlocked state.

[0101] The natural state of the spring 322 herein refers to a state in which the spring 322 is not elastically deformed; accordingly, the working state of the spring 322 refers to a state in which the spring 322 is elastically deformed. For example, when the spring 322 is a compression spring, its working state refers to a state in which the spring 322 is compressed; and when the spring 322 is an extension spring, its working state refers to a state in which the spring 322 is extended.

[0102] In one embodiment, when the spring 322 is in a natural state, the lock tongue 2 protrudes from the mounting housing 1 ; when the spring 322 is in a working state, the lock tongue 2 does not protrude from the mounting housing 1 .

[0103] As an example, Figure 3 As shown, the spring 322 is arranged between the mounting shell 1 and the slider 321. When the spring 322 is in the natural state, the lock tongue 2 rotates around the rotating base 101 to the maximum protruding position, forming a locking protrusion 41 and a locking groove 42. At this time, the locking structure is in the locked state; when the slider 321 is subjected to an external force, causing the slider 321 to move in one direction, the connecting rod 31 connected to the slider 321 drives the lock tongue 2 to rotate around the rotating base 101, so that the lock tongue 2 is completely accommodated in the accommodating cavity of the mounting shell 1. At this time, the spring 322 is in the working state, and the locking structure is in the unlocked state; when the external force disappears, under the elastic force of the spring 322, the slider 321 moves in the other direction, and the connecting rod 31 connected to the slider 321 drives the lock tongue 2 to rotate around the rotating base 101 until the spring 322 is in the natural state and the locking structure is in the locked state.

[0104] In this example, when the spring 322 is in the natural state, the lock tongue 2 protrudes from the mounting shell 1, so that the locking structure is in the locked state; on the contrary, when the spring 322 is in the working state, the lock tongue 2 does not protrude from the mounting shell 1, so that the locking structure is in the unlocked state. This design makes the locking structure suitable for when two workpieces or other structures to be installed need to be in a locked state for a long time, so that the spring 322 is in the natural state for a long time, and is only in the working state under the action of external force, which can effectively protect the service life of the spring 322 and thus protect the service life of the locking structure.

[0105] In one embodiment, if Figure 3 、 Figure 4 、 Figure 11 and Figure 12 As shown, the sliding assembly 32 also includes a spring mounting plate 323, which is arranged on the mounting shell 1; the slider 321 includes a slider body 3211 and a spring mounting groove 3212 arranged in the slider body 3211; the spring 322 is assembled in the spring mounting groove 3212, the first end of the spring 322 is connected to the spring mounting plate 323, and the second end of the spring 322 is connected to the slider body 3211.

[0106] As an example, the sliding assembly 32 also includes a spring mounting plate 323, which is arranged on the mounting shell 1 to separate the accommodating cavity into a first cavity and a second cavity; the rotating base 101 and the lock tongue 2 are arranged in the first cavity, and the sliding assembly 32 is arranged in the second cavity; the connecting rod 31 is arranged across the spring mounting plate 323, the first end of the connecting rod 31 is rotatably connected to the lock tongue 2, and the second end of the connecting rod 31 is rotatably connected to the slider 321. The slider 321 includes a slider body 3211 and a spring mounting groove 3212 arranged in the slider body 3211, where the opening direction of the spring mounting groove 3212 faces the spring mounting plate 323. The spring 322 is assembled in the spring mounting groove 3212, the first end of the spring 322 is connected to the spring mounting plate 323, and the second end of the spring 322 is connected to the slider body 3211 corresponding to the bottom of the spring mounting groove 3212. Note that the spring 322 in this example is arranged in the slider 321, Figure 3 It is just a schematic diagram to illustrate the assembly relationship between the two.

[0107] In this example, when the spring 322 is in a natural state, the spring 322 can push the slider 321 to move in a direction away from the lock tongue 2, so that the locking structure enters a locked state; when the slider 321 is subjected to an external force, the slider 321 moves in a direction close to the lock tongue 2, and the spring 322 is in a working state, so that the locking structure enters an unlocked state.

[0108] In one embodiment, if Figure 4 As shown, the sliding assembly 32 also includes a spring stop rod 324; the first end of the spring stop rod 324 is connected to the spring mounting plate 323, and the second end of the spring stop rod 324 is used to connect with the first end of the spring 322; the outer diameter of the spring stop rod 324 is smaller than the groove diameter of the spring mounting groove 3212, and the outer diameter of the spring stop rod 324 is larger than the outer diameter of the spring 322.

[0109] As an example, the sliding assembly 32 also includes a spring stopper 324. The first end of the spring stopper 324 is connected to the spring mounting plate 323, and the second end of the spring stopper 324 is connected to the first end of the spring 322, so that the spring 322 is deformed and compressed under the action of an external force. The slider 321 includes a slider body 3211 and a spring mounting slot 3212 disposed within the slider body 3211. The opening of the spring mounting slot 3212 faces the spring mounting plate 323. The spring 322 is assembled within the spring mounting slot 3212. The first end of the spring 322 is connected to the second end of the spring stopper 324, and the second end of the spring 322 is connected to the slider body 3211 at the bottom of the spring mounting slot 3212.

[0110] In this example, the outer diameter of the spring retaining rod 324 is smaller than the diameter of the spring mounting groove 3212, so that when the slider body 3211 moves toward the lock tongue 2 under the action of an external force, the spring retaining rod 324 can enter the spring mounting groove 3212 and connect with the second end of the spring 322, causing the spring 322 to be squeezed and deformed. The outer diameter of the spring retaining rod 324 is larger than the outer diameter of the spring 322, so that the spring retaining rod 324 cooperates with the slider body 3211 to squeeze and deform the spring 322;

[0111] In this example, the spring 322 is assembled in the spring mounting groove 3212 of the slider 321. When the spring 322 is in a natural state, the lock tongue 2 rotates around the rotating base 101 to the maximum protruding position, forming a locking protrusion 41 and a locking groove 42. At this time, the locking structure is in a locked state; when the slider 321 moves in a direction close to the lock tongue 2 under the action of an external force, the connecting rod 31 connected to the slider 321 drives the lock tongue 2 to rotate around the rotating base 101 until the lock tongue 2 is completely accommodated in the housing 1. When the cam 321 is in the unlocked position, the spring 322 is in the unlocked position, and the locking mechanism is in the unlocked position. When the external force disappears, the spring 322 is in the unlocked position, and the sliding block 321 moves away from the locking block 2. The connecting rod 31 connected to the sliding block 321 drives the locking block 2 to rotate around the rotating base 101 until the spring 322 is in the natural state and the locking mechanism is in the locked state.

[0112] In one embodiment, if Figure 4 As shown, the spring stop rod 324 includes a connecting rod 3241 and a stop block 3242; the first end of the connecting rod 3241 is connected to the spring mounting plate 323, the second end of the connecting rod 3241 is connected to the stop block 3242, and the stop block 3242 is connected to the first end of the spring 322; the outer diameter of the stop block 3242 is smaller than the groove diameter of the spring mounting groove 3212, and the outer diameter of the stop block 3242 is larger than the outer diameter of the spring 322 and the outer diameter of the connecting rod 3241.

[0113] As an example, the spring 322 stopper includes a connecting rod 3241 and a stopper 3242. The first end of the connecting rod 3241 is connected to the spring mounting plate 323, and the second end of the connecting rod 3241 is connected to the stopper 3242. The spring 322 is assembled in the spring mounting slot 3212 of the slider 321. The first end of the spring 322 is connected to the stopper 3242, and the second end of the spring 322 is connected to the slider body 3211. In this example, the outer diameter of the stopper 3242 is smaller than the diameter of the spring mounting slot 3212. This allows the slider body 3211 to move toward the lock tongue 2 under external force, allowing the stopper 3242 to enter the spring mounting slot 3212 and mate with the spring 322 body, causing the spring 322 to be squeezed and deformed. The outer diameter of the stopper 3242 is larger than the outer diameter of the spring 322, so that the stopper 3242 and the slider body 3211 can mate and squeeze the spring 322. The outer diameter of the connecting rod 3241 is smaller than the outer diameter of the stopper 3242 to reduce weight and cost.

[0114] In this example, two spring retaining rods 324 are arranged parallel to each other on the spring mounting plate 323; two spring mounting grooves 3212 are provided in the slider body 3211, and the two spring mounting grooves 3212 are arranged parallel to each other; a spring 322 is assembled in each spring mounting groove 3212, and the spring 322 is connected to the spring retaining rod 324 and the slider body 3211 at the bottom of the spring mounting groove 3212 to realize the passage of the two springs 322.

[0115] In one embodiment, if Figure 11 、 Figure 12 、 Figure 14 and Figure 15 As shown, the mounting housing 1 is further provided with a sliding groove 103 arranged along the first direction; the slider 321 further includes a sliding protrusion 3213 arranged on the slider body 3211 , and the sliding protrusion 3213 is assembled in the sliding groove 103 .

[0116] As an example, the mounting housing 1 further includes a sliding groove 103 extending along the first direction, disposed on the side of the accommodating cavity. The slider 321 further includes a sliding protrusion 3213 disposed on the slider body 3211. The sliding protrusion 3213 fits within the sliding groove 103 and can reciprocate along the sliding groove 103, limiting the reciprocating motion of the slider 321 in the first direction to prevent directional deviation during the sliding process, thereby ensuring control accuracy.

[0117] In this example, the two sliding grooves 103 are relatively arranged on the two inner walls of the mounting shell 1; the slider body 3211 extends outward with two sliding protrusions 3213, so that the two sliding protrusions 3213 are respectively assembled in the two sliding grooves 103, limiting the reciprocating motion of the slider 321 along the first direction, thereby ensuring control accuracy.

[0118] In an embodiment, the lock tongue 2 protrudes from the installation housing 1 when the crank adjusting mechanism 3 is in a non-force state; the lock structure further comprises an unlocking mechanism connected to the crank adjusting mechanism 3, which pushes the crank adjusting mechanism 3 to move in the first direction, so that the lock tongue 2 switches from the state of protruding from the installation housing 1 to the state of not protruding from the installation housing 1.

[0119] As an example, when the crank adjusting mechanism 3 is in a non-force state, i.e. not subjected to external force, the lock tongue 2 protrudes from the installation housing 1, i.e. the lock structure is in a locked state; when the crank adjusting mechanism 3 comprises a connecting rod 31 and a sliding assembly 32, and the sliding assembly 32 comprises a sliding block 321 and a spring 322, if the crank adjusting mechanism 3 is in a non-force state, the corresponding spring 322 is in a natural state. When it is necessary to control the lock structure to switch from the locked state to the unlocked state, the unlocking mechanism connected to the crank adjusting mechanism 3 can be used to push the crank adjusting mechanism 3 to move in the first direction, so that the lock tongue 2 switches from the state of protruding from the installation housing 1 to the state of not protruding from the installation housing 1, that is, the unlocking mechanism can provide external force to the crank adjusting mechanism 3 to switch it from the locked state to the unlocked state.

[0120] In this example, when the crank adjusting mechanism 3 is in a non-force state, the lock structure is in a locked state; when the crank adjusting mechanism 3 is subjected to the pushing force of the unlocking mechanism, the lock structure switches from the locked state to the unlocked state; when the pushing force of the unlocking mechanism disappears, the lock structure switches from the unlocked state to the locked state, so that the lock structure can be in the locked state for a long time, and only under the action of external force can it enter the unlocked state.

[0121] In an embodiment, as shown in Figure 2 , Figure 8 , Figure 14 and Figure 15 , the installation housing 1 is provided with an unlocking through hole 104 on the side close to the sliding assembly 32; the unlocking mechanism comprises a driving rod, which is arranged in the unlocking through hole 104 and connected to the sliding assembly 32, and pushes the sliding assembly 32 to move in the first direction, so that the lock tongue 2 switches from the state of protruding from the installation housing 1 to the state of not protruding from the installation housing 1.

[0122] As an example, the installation housing 1 is provided with an unlocking through hole 104 on the side close to the sliding assembly 32, and the unlocking through hole 104 is arranged opposite to the sliding block 321 of the sliding assembly 32. The lock structure further comprises a driving rod, which is arranged in the unlocking through hole 104 and connected to the sliding block 321 of the sliding assembly 32, and when the driving rod moves in the direction towards the lock tongue 2, the lock structure can switch from the locked state to the unlocked state.

[0123] In this example, when the spring 322 is in its natural state and the locking structure is in the locked state, the drive rod can be operated to provide an external force to the slider 321 of the sliding assembly 32, causing the slider 321 to move toward the lock tongue 2. The connecting rod 31 connected to the slider 321 drives the lock tongue 2 to rotate around the rotating base 101, so that the lock tongue 2 is completely accommodated in the accommodating cavity of the mounting housing 1. At this time, the spring 322 is in the working state and the locking structure is in the unlocked state. Correspondingly, when the external force provided by the drive rod to the slider 321 of the sliding assembly 32 disappears, the spring 322 acts to cause the slider 321 to move away from the lock tongue 2. The connecting rod 31 connected to the slider 321 drives the lock tongue 2 to rotate around the rotating base 101, so that a portion of the lock tongue 2 protrudes from the mounting housing 1, forming a locking protrusion 41 and a locking groove 42. At this time, the spring 322 is in the working state and the locking structure is in the unlocked state.

[0124] In one embodiment, if Figure 4 and Figure 9 As shown, the lock tongue 2 includes a lock tongue body 21 and a lock tongue connector 22; a rotation feature 211 matching the rotation base 101 is provided in the lock tongue body 21; the lock tongue connector 22 is arranged on the side of the lock tongue body 21 away from the rotation feature 211, and the lock tongue connector 22 is rotatably connected to the first end of the connecting rod 31.

[0125] As an example, the lock tongue 2 includes a lock tongue body 21 and a lock tongue connector 22. A rotation feature 211 is provided in the lock tongue body 21 to match the rotation base 101. When the rotation base 101 is a cylindrical base or a semi-cylindrical base with an arcuate surface disposed in the accommodating cavity, the rotation feature 211 here can be an arcuate groove provided in the lock tongue body 21, so that the rotation base 101 can be assembled in the rotation feature 211 of the lock tongue body 21, so that the lock tongue body 21 can rotate around the rotation base 101 to control the locking structure to enter a locked state or an unlocked state. The lock tongue connector 22 is disposed on a side of the lock tongue body 21 away from the rotation feature 211. The lock tongue connector 22 is rotatably connected to the first end of the connecting rod 31, while the second end of the connecting rod 31 is rotatably connected to the sliding assembly 32. When the sliding assembly 32 reciprocates in a first direction, the connecting rod 31 can drive the lock tongue 2 to rotate about the rotating base 101, so that the locking structure switches to a locked state or an unlocked state. In this example, the connecting rod 31 can drive the lock tongue 2 to rotate about the rotating base 101 in one direction, so that the lock tongue 2 protrudes from the mounting housing 1, forming a locking protrusion 41 and a locking groove 42, thereby causing the locking structure to enter the locked state; alternatively, the connecting rod 31 can drive the lock tongue 2 to rotate about the rotating base 101 in another direction, so that the lock tongue 2 no longer protrudes from the mounting housing 1, thereby causing the locking structure to enter the unlocked state.

[0126] In one embodiment, if Figure 4 、 Figure 5 and Figure 9 As shown, the rotating base 101 includes two arc-shaped bases arranged opposite to each other; the lock tongue body 21 is a trapezoidal body, the rotating feature 211 is an arc-shaped groove arranged on the first bottom surface of the trapezoidal body, and the arc-shaped groove matches the arc-shaped base; the lock tongue connector 22 is arranged on the second bottom surface of the trapezoidal body.

[0127] As an example, the rotating base 101 on the mounting housing 1 includes two arc-shaped bases arranged opposite each other, and the line connecting the centers of the two arc-shaped bases is the central axis of rotation of the lock tongue 2 around the rotating base 101. The lock tongue body 21 includes a trapezoidal body, which includes two parallel bottom surfaces, namely a first bottom surface and a second bottom surface. In this example, the bottom surface with a larger area can be determined as the first bottom surface, while the bottom surface with a smaller area can be determined as the second bottom surface. The lock tongue body 21 is an arc-shaped groove formed by being recessed from the first bottom surface to the second bottom surface. Each arc-shaped groove matches an arc-shaped base, that is, the curvature of the arc-shaped groove matches the curvature of the arc-shaped base, and the width of the arc-shaped groove matches the width of the arc-shaped base, so that the arc-shaped base can be assembled within the arc-shaped groove, allowing the lock tongue body 21 to rotate around the two arc-shaped bases, thereby switching the locking structure into a locked state or an unlocked state. The width here is based on the width in the direction of the central axis of rotation of the lock tongue 2 around the rotating base 101. Correspondingly, the lock tongue connector 22 is disposed on the second bottom surface of the trapezoidal body and is used to drive the lock tongue body 21 to rotate about the two curved bases to switch the locking structure into a locked state or an unlocked state. In this example, by providing an arc-shaped groove in the trapezoidal body that matches the curved base, the trapezoidal body is assembled on the curved base, allowing it to rotate about the curved base, so that the trapezoidal body protrudes from the mounting housing 1 or does not protrude from the mounting housing 1 to switch between the locked state and the unlocked state. Moreover, the trapezoidal body is assembled within the accommodating cavity of the mounting housing 1 and is not easily dislodged.

[0128] In one embodiment, if Figure 1 、 Figure 5 、 Figure 9 and Figure 10 As shown, the mounting shell 1 is provided with two first limiting surfaces 102 spaced apart along a first direction, and two arc-shaped bases are spaced apart perpendicular to the first direction; the trapezoidal body also includes two second limiting surfaces 212 spaced apart along the first direction, each second limiting surface 212 is arranged between the first bottom surface and the second bottom surface, and the two arc-shaped grooves are spaced apart perpendicular to the first direction; the first limiting surface 102 and the second limiting surface 212 are two arc-shaped surfaces that match each other.

[0129] As an example, the mounting housing 1 is further provided with two first limiting surfaces 102, the two first limiting surfaces 102 being spaced apart along a first direction, and the two arc-shaped bases being spaced apart perpendicularly to the first direction, so that the two first limiting surfaces 102 and the two arc-shaped bases are staggered. The first limiting surfaces 102 are specifically surfaces on the mounting housing 1 that contact the outer side of the lock tongue body 21 when the lock tongue body 21 rotates around the two arc-shaped bases. The first limiting surfaces 102 are arc-shaped surfaces. Correspondingly, the trapezoidal body further includes two second limiting surfaces 212, the two second limiting surfaces 212 being spaced apart along the first direction, each second limiting surface 212 being disposed between the first bottom surface and the second bottom surface, the two arc-shaped grooves being spaced apart perpendicularly to the first direction, the second limiting surfaces 212 being staggered with the two arc-shaped grooves, the first limiting surfaces 102 being specifically surfaces on which the outer side of the lock tongue body 21 contacts the mounting housing 1 when the lock tongue body 21 rotates around the two arc-shaped bases, and the second limiting surfaces 212 are arc-shaped surfaces. The first limiting surface 102 and the second limiting surface 212 are two matching arc surfaces, so that when the trapezoidal body rotates around the two arc bases, the second limiting surface 212 of the trapezoidal body is connected to the first limiting surface 102 of the mounting shell 1 to ensure its rotation reliability.

[0130] In one embodiment, if Figure 4 and Figure 12 As shown, the lock tongue 2 includes two lock tongue connectors 22 arranged opposite to each other; the slider 321 also includes a connecting protrusion 3214 arranged on the slider body 3211 and two connecting ears 3215 extending from the connecting protrusion 3214 in the same direction; the first end of the connecting rod 31 is assembled on the two lock tongue connectors 22 through a first rotating shaft, and the second end of the connecting rod 31 is assembled on the two connecting ears 3215 through a second rotating shaft.

[0131] As an example, the lock tongue 2 includes two oppositely disposed lock tongue connectors 22, each of which is provided with a first connection hole 1111. Accordingly, the slider 321 also includes a connection protrusion 3214 provided on the slider body 3211. Two connection lugs 3215 extend from the connection protrusion 3214 in the same direction. The two connection lugs 3215 are oppositely disposed, and each connection lug 3215 is provided with a second connection hole 1121. Specifically, the slider 321 includes a rectangular slider body 3211, two sliding protrusions 3213 extending outward from two side walls opposite to each other of the slider body 3211, a connecting protrusion 3214 extending from a side surface of the slider body 3211 other than the sliding protrusion 3213, and two connecting ears 3215 extending from the connecting protrusion 3214 in a direction perpendicular to the first direction. The two connecting ears 3215 are arranged at intervals to form an installation space for accommodating the connecting rod 31. Each connecting ear 3215 is provided with a second connecting hole 1121, and the two second connecting holes 1121 are arranged opposite to each other.

[0132] In this example, the first end of the connecting rod 31 is arranged between the two lock tongue connectors 22, and the first end of the connecting rod 31 is assembled on the first connecting hole 1111 of the two lock tongue connectors 22 through a first rotating shaft; and the second end of the connecting rod 31 is arranged between the two connecting ears 3215, and the second end of the connecting rod 31 is assembled in the second connecting hole 1121 of the two connecting ears 3215 through a second rotating shaft, so that the connecting rod 31 is rotatably connected to the lock tongue 2 and the slider 321, so that when the slider 321 reciprocates along the first direction, the connecting rod 31 can drive the lock tongue 2 to rotate around the rotating base 101 in two directions, so that the locking structure can realize the switching between the locked state and the unlocked state.

[0133] In one embodiment, if Figures 1-8 As shown, the mounting shell 1 includes a first shell 11 and a second shell 12; the first shell 11 is provided with a first accommodating groove 114 and a rotating base 101 located in the first accommodating groove 114; the second shell 12 is provided with a second accommodating groove 124; the first shell 11 and the second shell 12 are detachably connected, and the first accommodating groove 114 and the second accommodating groove 124 cooperate to form an accommodating cavity.

[0134] As an example, the mounting housing 1 includes a first housing 11 and a second housing 12. The first housing 11 is provided with a first receiving groove 114 and a rotating base 101 located in the first receiving groove 114. The lock tongue 2 can be set in the first receiving groove 114 so that the lock tongue 2 and the rotating base 101 are rotatably connected. The second housing 12 is provided with a second receiving groove 124 for assembling the crank adjustment mechanism 3, specifically the sliding assembly 32 of the crank adjustment mechanism 3. In this example, the lock tongue 2 is first assembled in the first receiving groove 114 of the first housing 11, and the sliding assembly 32 is assembled in the second receiving groove 124 of the second housing 12. Then, the connecting rod 31 is used to connect the lock tongue 2 and the sliding assembly 32. Finally, the first housing 11 and the second housing 12 are fixed with fasteners to complete the assembly of the locking structure, so that the first receiving groove 114 on the first housing 11 and the second receiving groove 124 on the second housing 12 cooperate to form a receiving cavity for accommodating the crank adjustment mechanism 3.

[0135] In one embodiment, if Figures 1-8As shown, the first shell 11 includes a first main body 111 arranged along the first direction, a first connecting portion 112 extending from one end of the first main body 111 away from the second shell 12 in a direction perpendicular to the first direction, and a second connecting portion 113 extending from one end of the first main body 111 close to the second shell 12 in a direction perpendicular to the first direction. The first connecting portion 112 and the second connecting portion 113 are located on both sides of the first main body 111, and a first accommodating groove 114 and a rotating base 101 are arranged on the first main body 111; the second shell 12 includes a second main body 121 arranged along the first direction, a third connecting portion 122 extending from one end of the second main body 121 in a direction perpendicular to the first direction, and a fourth connecting portion 123 extending from the third connecting portion 122 in the first direction. The second accommodating groove 124 is arranged on the second main body 121, the third connecting portion 122 and the fourth connecting portion 123; the third connecting portion 122 is detachably connected to the second connecting portion 113, and the fourth connecting portion 123 is detachably connected to the first main body 111 and the first connecting portion 112.

[0136] As an example, the first shell 11 includes a first main body 111 arranged along a first direction, a first connecting portion 112 extending from an end of the first main body 111 away from the second shell 12 along a direction perpendicular to the first direction, and a second connecting portion 113 extending from an end of the first main body 111 close to the second shell 12 along a direction perpendicular to the first direction. The extension directions of the first connecting portion 112 and the second connecting portion 113 are opposite, so that the first connecting portion 112 and the second connecting portion 113 are located on both sides of the first main body 111; in this example, a first accommodating groove 114 and a rotating base 101 are provided on the first main body 111 for installing the lock tongue 2, and the first connecting portion 112 and the second connecting portion 113 are used to be connected to the second shell 12.

[0137] As an example, the second shell 12 includes a second main body 121 arranged along the first direction, a third connecting part 122 extending from one end of the second main body 121 along a direction perpendicular to the first direction, and a fourth connecting part 123 extending from the third connecting part 122 along the first direction. The second main body 121, the third connecting part 122 and the fourth connecting part 123 extend in sequence, and the second accommodating groove 124 is arranged on the second main body 121, the third connecting part 122 and the fourth connecting part 123 in sequence. The second main body 121, the third connecting part 122 and the fourth connecting part 123 are all provided with grooves, so that they cooperate to form the second accommodating groove 124.

[0138] As an example, the first body 111 is provided with a first connection hole 1111 arranged perpendicular to the first direction; the first connection portion 112 is provided with a second connection hole 1121 arranged along the first direction; and the second connection portion 113 is provided with a third connection hole 1131 arranged along the first direction. Correspondingly, the third connection portion 122 is provided with a fourth connection hole 1221 and a connection through-hole 1222 arranged along the first direction; and the fourth connection portion 123 is provided with a fifth connection hole 1231 arranged perpendicular to the first direction and a sixth connection hole 1232 arranged along the first direction. Fasteners (including but not limited to bolts) can be inserted through the fourth connection hole 1221 and the third connection hole 1131 to achieve a fixed connection between the third connection portion 122 of the second shell 12 and the second connection portion 113 of the first shell 11. Fasteners (including but not limited to bolts) can be inserted through the fifth connection hole 1231 and the first connection hole 1111 to achieve a fixed connection between the fourth connection portion 123 of the second shell 12 and the first main body 111 of the first shell 11. Fasteners (including but not limited to bolts) can be inserted through the sixth connection hole 1232 and the third connection hole 1131 to achieve a fixed connection between the third connection portion 122 of the second shell 12 and the first connection portion 112 of the first shell 11. Here, the first connection hole 1111, the second connection hole 1121, and the third connection hole 1131 can be threaded holes, and the fasteners can be bolts corresponding to the stud holes. In this example, the first shell 11 and the second shell 12 are connected in a multi-point detachable manner by fasteners provided through the first connection hole 1111 , the second connection hole 1121 and the third connection hole 1131 , which helps to ensure the reliability of the connection.

[0139] Furthermore, a connecting through hole 1222 is provided on the third connecting portion 122 for connecting to a workpiece or other structure to be installed on which the locking structure is installed, so that the locking structure and the workpiece or other structure to be installed are connected into an integrated structure.

[0140] As an example, a first slide groove 115 is provided on the first main body 111 and a second slide groove 125 is provided on the second main body 121 and the third connecting part 122, and the first slide groove 115 and the second slide groove 125 cooperate to form a sliding groove 103 set along the first direction; the slider 321 also includes a sliding protrusion 3213 provided on the slider body 3211, and the sliding protrusion 3213 is assembled in the sliding groove 103 to avoid directional deviation during the sliding process of the slider 321, thereby ensuring control accuracy.

[0141] In one embodiment, the first connecting portion 112 is provided with a limiting protrusion 1122 arranged along the first direction, which is used to cooperate with the limiting hole 1132 of another locking structure; the second connecting portion 113 is provided with a limiting hole 1132 arranged along the first direction, which is used to cooperate with the limiting protrusion 1122 of another locking structure.

[0142] As an example, the first connecting portion 112 is provided with a limiting protrusion 1122 arranged along the first direction, and the second connecting portion 113 is provided with a limiting hole 1132 arranged along the first direction. When the two locking structures are engaged, the first bodies 111 of the two locking structures are arranged relative to each other. When the two locking structures move toward each other, the limiting protrusion 1122 of one locking structure is inserted into the limiting hole 1132 of the other locking structure to limit the two locking structures. This forms two sets of limiting structures between the two locking structures, with the limiting protrusions 1122 and the limiting holes 1132 cooperating. This helps to ensure the tightness of the connection between the two locking structures.

[0143] An embodiment of the present invention provides a locking device, which includes two locking structures; the mounting shells 1 of the two locking structures are arranged opposite to each other; the crank adjustment structures 3 of the two locking structures drive the lock tongues 2 to rotate around the rotating base 101, so that the two lock tongues 2 protrude from the mounting shell 1 at the same time or do not protrude from the mounting shell 1; when the two lock tongues 2 protrude from the mounting shell 1 at the same time, the locking protrusion 41 of one locking structure is inserted into the locking groove 42 of the other locking structure.

[0144] As an example, the locking device includes two locking structures, wherein the mounting housings 1 in the two locking structures are arranged relative to each other along a second direction perpendicular to the first direction, and the two mounting housings 1 can move toward or away from each other along the first direction, thereby driving the crank adjustment structures 3 in the two mounting housings 1 to move toward or away from each other along the first direction, thereby driving the lock tongues 2 to rotate around the rotating base 101, so that the two lock tongues 2 simultaneously protrude from the mounting housing 1 or do not protrude from the mounting housing 1, that is, the two locking structures simultaneously enter the locked state or unlocked state. When the two locking structures simultaneously enter the locked state, the locking protrusion 41 formed by any locking structure is inserted into the locking groove 42 formed by the other locking structure, so as to form an interlocking structure in which the two locking protrusions 41 cooperate with the two locking grooves 42 in the first direction to ensure their locking effect; when the two locking structures simultaneously enter the unlocked state, the lock tongues 2 of the two locking structures do not protrude from their mounting housings 1, so that the two locking structures can be separated from each other.

[0145] In this example, the two locking structures of the locking device can be installed on the two structures to be installed. When both locking structures are in the locked state, the two structures to be installed are connected; when both locking structures are in the unlocked state, the two structures to be installed are separated. The two locking structures are used to connect and disconnect the two structures to be installed. This process does not require additional control and electric components, and the overall structure is simple, the switching operation is simple, and the operation efficiency is high.

[0146] In one embodiment, if Figure 1-Figure 4As shown, the two crank adjustment mechanisms 3 are respectively arranged on opposite sides of the two lock tongues 2 along the first direction, so that the two crank adjustment mechanisms 3 move toward each other or move away from each other along the first direction, so that the two lock tongues 2 protrude from the mounting housing 1 at the same time or do not protrude from the mounting housing 1;

[0147] In each locking structure, when the locking tongue 2 protrudes from the mounting housing 1, a locking protrusion 41 is formed at the end of the locking tongue 2 close to the crank adjustment mechanism 3, and a locking groove 42 is formed between the end of the locking tongue 2 away from the crank adjustment mechanism 3 and the mounting housing 1. The first direction here is the movement direction of the crank adjustment mechanism 3.

[0148] As an example, the locking device includes two locking structures, each including a mounting housing 1, a locking tongue 2, and a crank adjustment mechanism 3; the mounting housings 1 in the two locking structures are arranged relative to each other along a second direction perpendicular to the first direction; the two crank adjustment mechanisms 3 are respectively arranged on opposite sides of the two locking tongues 2 along the first direction. For example, when the first direction is the up-down direction, one crank adjustment mechanism 3 can be arranged on the upper side of the two locking tongues 2, and the other crank adjustment mechanism is arranged on the lower side of the locking tongues 2; when the two mounting housings 1 move toward or away from each other along the first direction, the two crank adjustment mechanisms 3 can be driven to move toward or away from each other along the first direction, thereby causing the two locking tongues 2 to simultaneously protrude from the mounting housing 1 or not. Taking the crank adjustment mechanism 3 as an example, when the locking tongue 2 protrudes from the mounting housing 1, a locking protrusion 41 is formed at the upper end of the locking tongue 2 close to the crank adjustment mechanism 3, and a locking groove 42 is formed between the lower end of the locking tongue 2 away from the crank adjustment mechanism 3 and the mounting housing 1. This design allows the two crank adjustment mechanisms 3 to move toward or away from each other along a first direction when the two locking structures cooperate, so that the locking protrusion 41 formed by any locking structure can be inserted into the locking groove 42 formed by the other locking structure, forming an interlocking structure to ensure the tightness of the connection in the locked state. Moreover, when the two locking structures cooperate, the crank adjustment mechanism 3 can be controlled to move toward or away from each other along the first direction to achieve switching between the locked state and the unlocked state. The operation process is simple and efficient.

[0149] In one embodiment, when the two crank adjustment mechanisms 3 are in a non-stressed state, the lock tongue 2 protrudes from the mounting shell 1; at least one locking structure also includes an unlocking mechanism, which is connected to the crank adjustment mechanism 3 and pushes the crank adjustment mechanism 3 to move in a first direction, so that the lock tongue 2 switches from a state of protruding from the mounting shell 1 to a state of not protruding from the mounting shell 1.

[0150] As an example, when the two crank adjustment mechanisms 3 are in a non-stressed state, that is, when not subjected to external force, the lock tongue 2 protrudes from the mounting housing 1, and the locking structure is in a locked state. When the crank adjustment mechanism 3 includes a connecting rod 31 and a sliding assembly 32, and the sliding assembly 32 includes a slider 321 and a spring 322, if the crank adjustment mechanism is in a non-stressed state, the corresponding spring 322 is in a natural state. When it is necessary to control the locking structure to switch from a locked state to an unlocked state, an unlocking mechanism connected to the crank adjustment mechanism can be used to push the crank adjustment mechanism 3 in a first direction, so that the lock tongue 2 switches from a state of protruding from the mounting housing 1 to a state of not protruding from the mounting housing 1. In other words, the unlocking mechanism can be used to apply an external force to the crank adjustment mechanism, so that it switches from a locked state to an unlocked state. In this example, the unlocking mechanism can be used to provide a thrust to one or both crank adjustment mechanisms 3, so that the two curve adjustment mechanisms 3 move toward or away from each other in the first direction, thereby achieving switching between the locked state and the unlocked state.

[0151] In this example, when the crank adjustment mechanism 3 is in a non-stressed state, the locking structure is in a locked state; when the crank adjustment mechanism 3 is pushed by the unlocking mechanism, the locking structure switches from a locked state to an unlocked state; when the thrust of the unlocking mechanism on the crank adjustment mechanism 3 disappears, the locking structure switches from an unlocked state to a locked state, so that the locking structure can be in a locked state for a long time and will only enter an unlocked state under the action of external force.

[0152] As an example, the crank adjustment mechanism 3 includes a connecting rod 31 and a sliding assembly 32; the first end of the connecting rod 31 is rotatably connected to the lock tongue 2, and the second end of the connecting rod 31 is rotatably connected to the sliding assembly 32; the sliding assembly 32 is connected to the mounting shell 1, and is used to drive the connecting rod 31 to reciprocate along the first direction, so that the connecting rod 31 drives the lock tongue 2 to rotate around the rotating base 101, so that the lock tongue 2 protrudes from the mounting shell 1 or does not protrude from the mounting shell 1; at least one side of the mounting shell 1 close to the sliding assembly 32 is provided with an unlocking through hole 104; the unlocking mechanism includes a driving rod, the driving rod is passed through the unlocking through hole 104, and is connected to the sliding assembly 32, pushing the sliding assembly 32 to move along the first direction, so that the lock tongue 2 switches from a state of protruding from the mounting shell 1 to a state of not protruding from the mounting shell 1.

[0153] As an example, the crank adjustment mechanism 3 of each locking structure includes a connecting rod 31 and a sliding assembly 32. The connecting rod 31 is disposed within the accommodating cavity. The first end of the connecting rod 31 is rotatably connected to the lock tongue 2, specifically, the first end of the connecting rod 31 and the lock tongue 2 are hingedly connected. The second end of the connecting rod 31 is rotatably connected to the sliding assembly 32, specifically, the second end of the connecting rod 31 and the sliding assembly 32 are hingedly connected. The sliding assembly 32 is disposed within the accommodating cavity and connected to the inner wall of the mounting housing 1. The sliding assembly 32 can drive the connecting rod 31 to reciprocate in a first direction, so that the connecting rod 31 drives the lock tongue 2 to rotate about the rotating base 101, causing the lock tongue 2 to protrude from the mounting housing 1 or not, thereby causing the locking structure to enter a locked state or an unlocked state. At least one mounting housing 1 has an unlocking hole 104 on one side thereof, adjacent to the sliding assembly 32. This unlocking hole 104 is disposed opposite the slider 321 of the sliding assembly 32. In this example, the unlocking hole 104 can be provided on either mounting housing 1, or on both mounting housings 1. The unlocking mechanism includes a drive rod, which passes through the unlocking hole 104 and engages with the slider 321 of the sliding assembly 32. When the drive rod moves toward the lock tongue 2, the locking mechanism switches from a locked state to an unlocked state.

[0154] An embodiment of the present invention provides another locking device, which includes a locking structure; the mounting shell 1 of the locking structure is arranged opposite to the counterpart to be connected, and a slot is provided on the counterpart to be connected; the crank adjustment structure 3 of the locking structure drives the lock tongue 2 to rotate around the rotating base 101, so that the lock tongue 2 protrudes from the mounting shell 1 or does not protrude from the mounting shell 1; when the lock tongue 2 protrudes from the mounting shell 1, the locking protrusion 41 of the locking structure is inserted into the slot of the counterpart to be connected.

[0155] An embodiment of the present invention provides an automobile, a body, a chassis and the locking device in the above embodiment; the locking device is arranged along the height direction of the vehicle body, one locking structure in the locking device is arranged on the vehicle body, and the other locking structure is arranged on the chassis.

[0156] As an example, a car includes a body, a chassis and the above-mentioned locking device, and the locking device includes two locking structures. Figure 13-15 As shown, a locking structure is provided on the vehicle body (the locking structure located at the top in the figure), and another locking structure is provided on the chassis (the locking structure located at the bottom in the figure). The locking device can realize automatic locking function and driven unlocking function, which is specifically performed as follows:

[0157] The tooling is used to arrange the body and chassis to be matched in opposite directions along the height of the body, so that the two locking structures respectively installed on the body and chassis move towards each other; when the two locking structures are close to a certain distance, the mounting shell 1 of one locking structure pushes the lock tongue 2 of the other locking structure to overcome the action of the spring 322 and starts to rotate; as the distance between the two locking structures becomes smaller, the limiting protrusion 1122 on the mounting shell 1 of any locking structure gradually enters the limiting hole 1132 on the mounting shell 1 of the other locking structure; when the two lock tongues 2 are rotated to make the contact plane of the lock tongue 2 flush with the contact plane of the two mounting shells 1, the mounting shell 1 loses the contact effect on the lock tongue 2, at this time, the two lock tongues 2 are reversely rotated by a preset angle (such as 40°) to the natural state under the action of the spring 322, at this time, the contact plane of the lock tongue 2 and the contact plane of the mounting shell 1 have an angle difference of 40°, realizing the automatic locking function of the two locking structures. The limiting protrusion 1122 on the two mounting shells 1 and the limiting hole 1132 are in close contact, which can well transmit the load between the body and the chassis.

[0158] The driving rod is inserted through the unlocking through hole 104 provided on the mounting shell 1 of one locking structure, specifically through the unlocking through hole 104 provided on the mounting shell 1 of the locking structure on the chassis, and pushes the sliding block 321 in the sliding assembly 32 in the first direction, since the sliding block 321 is connected with the lock tongue 2 through the connecting rod 31, the sliding block 321 moves in the first direction, which can make the lock tongue 2 on the chassis rotate clockwise around the rotating base 101, at this time, the lock tongue 2 on the chassis rotates, which gives the lock tongue 2 on the body a torque, so that the lock tongue 2 on the body also rotates clockwise around the rotating base 101, so that the contact planes of the two lock tongues 2 rotate to the same plane as the contact plane of the mounting shell 1, at this time, the lock tongue 2 pushes the locking effect, so that the chassis and the body can realize the driving unlocking function, so that they are separated.

[0159] In this embodiment, by installing the locking device on the body and the chassis, the locking device is automatically locked during the movement of the two locking structures arranged on the body and the chassis, without the need for other operations and equipment; by inserting the driving rod through the unlocking through hole 104 provided in the mounting shell 1, pushing the sliding assembly 32 in the crank adjusting mechanism 3 in the first direction, the locking of the locking device can be realized, so that the body and the chassis are separated, the operation process is simple, and the unlocking operation time is short and efficient.

[0160] In one embodiment, a plurality of locking devices are arranged on the body and the chassis.

[0161] As an example, multiple locking devices can be set according to the size of the car or other needs, for example, 6-8 locking devices can be set; multiple locking devices can be set at intervals under the car body and chassis, for example, multiple locking devices can be set in a rectangular shape between the car body and the chassis to ensure the tightness of the connection between the car body and the chassis in a locked state.

[0162] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention, and should all be included in the scope of protection of the present invention.

Claims

1. A locking structure, characterized in that: Includes mounting housing, locking tongue, and crank adjustment mechanism; The mounting shell is provided with a receiving cavity and a rotating base arranged in the receiving cavity; The lock tongue and the crank adjustment mechanism are arranged in the accommodating cavity, the lock tongue is rotatably connected to the rotating base, and the crank adjustment mechanism is connected to the lock tongue, and is used to drive the lock tongue to rotate around the rotating base so that the lock tongue protrudes from the mounting shell or does not protrude from the mounting shell; when the lock tongue protrudes from the mounting shell, a locking protrusion is formed at one end of the lock tongue, and a locking groove is formed between the other end of the lock tongue and the mounting shell.

2. The locking structure according to claim 1, wherein: The crank adjustment mechanism is arranged on one side of the lock tongue along a first direction, and the crank adjustment mechanism reciprocates along the first direction to drive the lock tongue to rotate around the rotating base; When the locking tongue protrudes from the mounting housing, a locking protrusion is formed at one end of the locking tongue close to the crank adjustment mechanism, and a locking groove is formed between one end of the locking tongue away from the crank adjustment mechanism and the mounting housing.

3. The locking structure according to claim 1, wherein: The crank adjustment mechanism includes a connecting rod and a sliding assembly; The first end of the connecting rod is rotatably connected to the locking tongue, and the second end of the connecting rod is rotatably connected to the sliding assembly; The sliding assembly is connected to the mounting housing, and the sliding assembly reciprocates along a first direction, so that the connecting rod drives the lock tongue to rotate around the rotating base, so that the lock tongue protrudes from the mounting housing or does not protrude from the mounting housing.

4. The locking structure according to claim 3, wherein: The sliding assembly includes a slider and a spring; The slider is rotatably connected to the second end of the connecting rod; The first end of the spring is connected to the mounting housing, and the second end of the spring is connected to the slider, for driving the slider to reciprocate along a first direction.

5. The locking structure according to claim 4, wherein: When the spring is in a natural state, the lock tongue protrudes from the mounting housing; When the spring is in a working state, the locking tongue does not protrude from the mounting housing.

6. The locking structure according to claim 4, wherein: The sliding assembly further includes a spring mounting plate, wherein the spring mounting plate is disposed on the mounting housing; The slider includes a slider body and a spring mounting groove arranged in the slider body; The spring is assembled in the spring installation groove, the first end of the spring is connected to the spring installation plate, and the second end of the spring is connected to the slider body.

7. The locking structure according to claim 6, wherein: The sliding assembly also includes a spring stop bar; The first end of the spring blocking rod is connected to the spring mounting plate, and the second end of the spring blocking rod is used to connect with the first end of the spring; The outer diameter of the spring blocking rod is smaller than the groove diameter of the spring installation groove, and the outer diameter of the spring blocking rod is larger than the outer diameter of the spring.

8. The locking structure according to claim 7, wherein: The spring stop rod includes a connecting rod and a stop block; The first end of the connecting rod is connected to the spring mounting plate, the second end of the connecting rod is connected to the stopper, and the stopper is connected to the first end of the spring; The outer diameter of the stopper is smaller than the groove diameter of the spring installation groove, and the outer diameter of the stopper is larger than the outer diameter of the spring and the outer diameter of the connecting rod.

9. The locking structure according to claim 6, wherein: The mounting housing is further provided with a sliding groove arranged along the first direction; The slider further includes a sliding protrusion provided on the slider body, and the sliding protrusion is assembled in the sliding groove.

10. The locking structure according to claim 3, wherein: When the crank adjustment mechanism is in a non-stressed state, the locking tongue protrudes from the mounting housing; The locking structure also includes an unlocking mechanism, which is connected to the crank adjustment mechanism and pushes the crank adjustment mechanism to move in a first direction, so that the locking tongue switches from a state of protruding from the mounting shell to a state of not protruding from the mounting shell.

11. The locking structure according to claim 3, wherein: An unlocking hole is provided on a side of the mounting housing close to the sliding assembly; The unlocking mechanism includes a driving rod, which is passed through the unlocking through hole and connected to the sliding assembly to push the sliding assembly to move in a first direction, so that the lock tongue switches from a state of protruding from the mounting shell to a state of not protruding from the mounting shell.

12. The locking structure according to claim 4, wherein: The lock tongue comprises a lock tongue body and a lock tongue connector; The lock bolt body is provided with a rotation feature that matches the rotation base; The locking tongue connecting piece is arranged on a side of the locking tongue body away from the rotation feature, and the locking tongue connecting piece is rotatably connected to the first end of the connecting rod.

13. The locking structure according to claim 12, wherein: The rotating base includes two arc-shaped bases arranged opposite to each other; The lock tongue body is a trapezoidal body, and the rotation feature is an arc-shaped groove provided on the first bottom surface of the trapezoidal body, and the arc-shaped groove matches the arc-shaped base; The locking tongue connecting piece is arranged on the second bottom surface of the trapezoidal body.

14. The locking structure according to claim 13, wherein: The mounting housing is provided with two first limiting surfaces spaced apart along a first direction, and the two arc-shaped bases are spaced apart perpendicular to the first direction; The trapezoidal body further includes two second limiting surfaces spaced apart along the first direction, each second limiting surface being disposed between the first bottom surface and the second bottom surface, and the two arc-shaped grooves being spaced apart perpendicular to the first direction; The first limiting surface and the second limiting surface are two arc-shaped surfaces that match each other.

15. The locking structure according to claim 12, wherein: The lock tongue comprises two lock tongue connecting parts arranged opposite to each other; The slider further includes a connecting protrusion provided on the slider body and two connecting ears extending from the connecting protrusion in the same direction; The first end of the connecting rod is assembled on the two locking tongue connecting pieces through a first rotating shaft, and the second end of the connecting rod is assembled on the two connecting ears through a second rotating shaft.

16. The locking structure according to claim 1, wherein: The mounting housing includes a first housing and a second housing; The first housing is provided with a first accommodating groove and the rotating base is located in the first accommodating groove; The second housing is provided with a second accommodating groove; The first shell and the second shell are detachably connected, and the first accommodating groove and the second accommodating groove cooperate to form the accommodating cavity.

17. The locking structure according to claim 16, wherein: The first housing includes a first main body arranged along a first direction, a first connecting portion extending perpendicularly to the first direction from an end of the first main body away from the second housing, and a second connecting portion extending perpendicularly to the first direction from an end of the first main body close to the second housing, the first connecting portion and the second connecting portion being located on both sides of the first main body, and the first receiving groove and the rotating base being provided on the first main body; The second housing includes a second main body arranged along a first direction, a third connecting portion extending from one end of the second main body in a direction perpendicular to the first direction, and a fourth connecting portion extending from the third connecting portion in the first direction, and the second receiving groove is provided on the second main body, the third connecting portion, and the fourth connecting portion; The third connection portion is detachably connected to the second connection portion, and the fourth connection portion is detachably connected to the first body and the first connection portion.

18. The locking structure according to claim 17, wherein: The first connecting portion is provided with a limiting protrusion arranged along the first direction, for cooperating with a limiting hole of the other locking structure; The second connecting portion is provided with a limiting hole arranged along the first direction for cooperating with a limiting protrusion of another locking structure.

19. A locking device, characterized in that: comprising two locking structures according to any one of claims 1 to 18; The mounting housings of the two locking structures are arranged opposite to each other; the crank adjustment structures of the two locking structures drive the lock tongues to rotate around the rotating base, so that the two lock tongues protrude from the mounting housing or do not protrude from the mounting housing at the same time; When the two locking tongues protrude from the mounting housing at the same time, the locking protrusion of one locking structure is inserted into the locking groove of the other locking structure.

20. The locking device according to claim 19, wherein: The two crank adjustment mechanisms are respectively arranged on opposite sides of the two locking tongues along the first direction, so that the two crank adjustment mechanisms move toward each other or move away from each other along the first direction, so that the two locking tongues simultaneously protrude from the mounting housing or do not protrude from the mounting housing; In each of the locking structures, when the locking tongue protrudes from the mounting housing, a locking protrusion is formed at one end of the locking tongue close to the crank adjustment mechanism, and a locking groove is formed between one end of the locking tongue away from the crank adjustment mechanism and the mounting housing.

21. The locking device according to claim 19, wherein: When the two crank adjustment mechanisms are in a non-stressed state, the locking tongue protrudes from the mounting housing; At least one of the locking structures further includes an unlocking mechanism, which is connected to the crank adjustment mechanism and pushes the crank adjustment mechanism to move in a first direction, so that the locking tongue switches from a state of protruding from the mounting shell to a state of not protruding from the mounting shell.

22. An automobile comprising a body and a chassis, characterized in that: Also includes the locking device according to any one of claims 19 to 21; The locking device is arranged along the height direction of the vehicle body. One locking structure in the locking device is arranged on the vehicle body, and the other locking structure is arranged on the chassis.

23. The automobile according to claim 22, wherein: The automobile is provided with a plurality of locking devices, which are arranged at intervals on the vehicle body and the chassis.

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