Locking mechanism and vehicle with same

Abstract

The utility model discloses a locking mechanism and a vehicle with the locking mechanism, the locking mechanism comprises a first connecting piece and a second connecting piece, the first connecting piece is internally provided with an accommodating cavity, and the opening of the accommodating cavity is provided with a locking part; a part of the second connecting piece is suitable for extending into the containing cavity, the second connecting piece comprises a protective shell, a driving piece, a limiting piece and a locking piece, the driving piece is in transmission connection with the limiting piece, and the locking piece is located in a containing hole of the protective shell; wherein the limiting part is provided with a locking position and an unlocking position, the driving part is used for driving the limiting part to move between the locking position and the unlocking position, in the locking position, the limiting part is used for enabling part of the locking part to stretch out of the containing hole so that the locking part and the locking part can be in a locking state, and in the unlocking position, the limiting part is used for enabling the locking part to stretch out of the containing hole so that the locking part and the locking part can be in a locking state. And the limiting piece is used for enabling the locking piece and the locking part to be in an unlocking state. According to the locking mechanism, the locking reliability of the first connecting piece and the second connecting piece is improved, and then the service life of the locking mechanism is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicles, in particular to a locking mechanism and a vehicle having the same. Background Art

[0002] In related technologies, the chassis platform skid plate has become a current hotspot, and a screw connection structure is adopted between the vehicle body and the chassis to realize the rapid connection and separation of the vehicle body and the chassis. By connecting the vehicle body and the chassis with bolts, this screw connection structure can be repeatedly combined and separated, so as to realize the switching of the operation scenarios of matching multi-functional cabins based on the same lower vehicle body; however, under the repeated disassembly and assembly and the action of the alternating load rigidity, the bolt connection is prone to slipping of the thread, resulting in loosening of the connection between the vehicle body and the chassis, and the stability and reliability of the connection between the vehicle body and the chassis cannot be guaranteed. Summary of the Utility Model

[0003] The utility model aims to at least solve one of the technical problems existing in the prior art. For this reason, an object of the utility model is to provide a locking mechanism, in which the acting forces of the first connecting member and the second connecting member both act on the locking member, so as to improve the reliability when the first connecting member and the second connecting member are locked, and further improve the service life of the locking mechanism.

[0004] The locking mechanism according to the first aspect embodiment of the utility model includes: a first connecting member, which has a receiving cavity therein, one end of the receiving cavity in the first direction has an opening, and a locking portion is provided at the opening; a second connecting member, a part of the second connecting member is adapted to extend into the receiving cavity, the second connecting member includes a protective shell, a driving member, a limiting member and a locking member, the protective shell has a limiting cavity therein, the driving member and the limiting member are located in the limiting cavity, the driving member is in transmission connection with the limiting member, the protective shell is provided with a receiving hole penetrating through the side wall of the protective shell, and the locking member is located in the receiving hole; wherein, the limiting member has a locking position and an unlocking position, the driving member is used to drive the limiting member to move between the locking position and the unlocking position, in the locking position, the limiting member is used to make a part of the locking member extend out of the receiving hole, so that the locking member and the locking portion are in a locked state, and in the unlocking position, the limiting member is used to make the locking member and the locking portion in an unlocked state.

[0005] According to the locking mechanism of the embodiment of the present utility model, the unlocking and locking of the first connecting member and the second connecting member are realized by driving the movement of the locking member through the limiting member, so that the locking method and unlocking method of the locking mechanism are simple, and the unlocking and locking efficiency of the first connecting member and the second connecting member are improved; in the locked state, the acting forces of the first connecting member and the second connecting member both act on the locking member, and the position of the locking member is fixed during locking and is not easy to loosen, solving the problem of loosening when the first connecting member and the second connecting member are connected, improving the reliability of the first connecting member and the second connecting member during locking, and further improving the service life of the locking mechanism.

[0006] According to some embodiments of the present utility model, the locking member is of a spherical structure.

[0007] According to some embodiments of the present utility model, the wall thickness of the side wall of the protective shell where the receiving hole is located is smaller than the diameter of the locking member.

[0008] According to some embodiments of the present utility model, the second connecting member further includes a first bearing and a second bearing disposed in the protective shell, the driving member is a driving rod extending along the first direction, and both ends of the driving rod are respectively engaged with the first bearing and the second bearing.

[0009] According to some embodiments of the present utility model, the limiting member is sleeved on the outer peripheral side of the driving rod, and the driving rod is in threaded cooperation with the limiting member so that the limiting member can move along the first direction.

[0010] According to some embodiments of the present utility model, both ends of the protective shell along the first direction respectively have a first port and a second port, the second connecting member further includes a first end cap and a second end cap, the first end cap is used to close the first port, the second end cap is used to close the second port, wherein the first bearing is located at the first port, an installation cavity is defined in the second end cap, and the second bearing is located in the installation cavity.

[0011] According to some embodiments of the present utility model, a through hole is provided on the second end cap, and the driving rod is adapted to extend out of the protective shell through the through hole.

[0012] According to some embodiments of the present utility model, a first limiting portion is provided on the limiting member, and a second limiting portion cooperating with the first limiting portion is provided on the protective shell for limiting the movement range of the limiting member.

[0013] According to some embodiments of the present utility model, the first limiting portion is a first convex portion provided on the outer peripheral side of the limiting member, and the second limiting portion is a second convex portion provided on the inner wall of the protective shell and extending towards the inside of the limiting cavity.

[0014] According to some embodiments of the present utility model, a guiding assembly is provided between the protective case and the limiting member.

[0015] According to some embodiments of the present utility model, the guiding assembly includes a cooperating guiding groove and a guiding block. The guiding block is located on the inner wall of the protective case, and the guiding groove is located on the outer peripheral wall of the limiting member.

[0016] According to some embodiments of the present utility model, the limiting member has a first guiding inclined surface for guiding the locking member to move outward toward the receiving hole.

[0017] According to some embodiments of the present utility model, the locking portion is a first limiting protrusion extending in the direction toward the receiving cavity at the opening, and the first limiting protrusion is used to limit the locking member within the receiving cavity.

[0018] According to some embodiments of the present utility model, the first limiting protrusion has a second guiding inclined surface for guiding the locking member to move inward toward the receiving hole.

[0019] According to some embodiments of the present utility model, a second limiting protrusion is provided in the receiving hole, and the second limiting protrusion is used to limit the extending amount of the limiting member extending out of the receiving hole.

[0020] According to some embodiments of the present utility model, the second limiting protrusion has a surface that fits with the locking member, and the surface is an inclined surface or a curved surface.

[0021] A vehicle according to an embodiment of the second aspect of the present utility model includes: a vehicle body and a chassis; a locking mechanism according to the above-mentioned first aspect embodiment of the present utility model, wherein the first connecting member is connected to one of the vehicle body and the chassis, and the second connecting member is connected to the other of the vehicle body and the chassis.

[0022] According to the vehicle of the embodiment of the present utility model, by providing the above-mentioned locking mechanism, the locking and unlocking methods of the locking mechanism are simple, the unlocking and locking efficiency of the first connecting member and the second connecting member are improved; in the locked state, the acting forces of the first connecting member and the second connecting member both act on the locking member, the reliability of the first connecting member and the second connecting member during locking is improved, and thus the reliability of the connection between the chassis and the vehicle body is improved.

[0023] Additional aspects and advantages of the present utility model will be given in part in the following description, become apparent in part from the following description, or be understood through the practice of the present utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The above and / or additional aspects and advantages of the present utility model will become apparent and be readily understood from the description of the embodiments in conjunction with the following drawings, wherein:

[0025] Figure 1 is a schematic diagram of a locking mechanism connected to a chassis according to some embodiments of the present utility model;

[0026] Figure 2 is Figure 1 an enlarged view of the locking mechanism connected to the chassis in

[0027] Figure 3 is a schematic diagram of a locking mechanism according to some embodiments of the present utility model;

[0028] Figure 4 is Figure 3 an exploded view of the protective shell and the limiting member in

[0029] Figure 5 is Figure 3 a schematic diagram of the first connecting member in

[0030] Figure 6 is Figure 3 a schematic diagram of the second connecting member in

[0031] Figure 7 is Figure 3 a schematic diagram of the first end cap in

[0032] Figure 8 is Figure 3 a schematic diagram of the protective shell in

[0033] Figure 9 is Figure 3 a schematic diagram of the first bearing in

[0034] Figure 10 is Figure 3 a schematic diagram of the driving member in

[0035] Figure 11 is Figure 3 a schematic diagram of the limiting member in

[0036] Figure 12 is Figure 3 a schematic diagram of the second bearing in

[0037] Figure 13 is Figure 3 a schematic diagram of the second end cap in

[0038] Figure 14 is Figure 3 a schematic diagram of the first fastener in

[0039] Figure 15 is Figure 3Schematic diagram of the second fastener;

[0040] Figure 16 is Figure 3 Cross-sectional view of the locking mechanism in [device name], where the locking mechanism is in the unlocked state;

[0041] Figure 17 is Figure 3 Cross-sectional view of the locking mechanism in [device name], where the locking mechanism is in the locked state;

[0042] Figure 18 is Figure 3 Another cross-sectional view of the locking mechanism in [device name] in a different direction, where the locking mechanism is in the locked state;

[0043] Figure 19 is Figure 3 Partial cross-sectional view of the locking mechanism in [device name];

[0044] Figure 20 is Figure 19 Enlarged view of area A in [device name].

[0045] Reference numerals:

[0046] 100, locking mechanism;

[0047] 10, first connecting member; 11, receiving cavity; 12, locking portion; 121, first limiting protrusion; 122, second guiding inclined surface; 13, first flange; 131, first connecting hole;

[0048] 20, second connecting member; 21, protective shell; 211, limiting cavity; 212, receiving hole; 213, second limiting protrusion; 214, second limiting portion; 215, guiding block; 2161, first port; 2162, second port; 217, second flange; 2171, second connecting hole; 2181, second mounting hole; 2182, fourth mounting hole; 22, driving member; 221, first external thread; 222, first limiting surface; 23, limiting member; 231, first limiting portion; 232, guiding groove; 233, first guiding inclined surface; 234, first internal thread; 24, locking member; 251, first bearing; 252, second bearing; 261, first end cover; 2611, first mounting hole; 262, second end cover; 2621, mounting cavity; 2622, through hole; 2623, third mounting hole; 271, first fastener; 272, second fastener;

[0049] 30, chassis. Detailed implementation manner

[0050] Embodiments of the present utility model will be described in detail below. Examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals denote the same or similar elements or elements with the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present utility model and should not be construed as a limitation of the present utility model.

[0051] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation of the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, "a plurality" means two or more unless otherwise specifically defined.

[0052] In the description of the present utility model, it should be noted that unless otherwise clearly specified and limited, the terms "mounted", "connected", and "coupled" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the internal communication of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0053] Next, reference will be made to Figures 1 - 20 describe the locking mechanism 100 according to an embodiment of the present utility model.

[0054] The locking mechanism 100 according to an embodiment of the first aspect of the present utility model includes a first connecting member 10 and a second connecting member 20. The first connecting member 10 and the second connecting member 20 can be unlocked or locked with each other. For example, the first connecting member 10 can be used to connect to the vehicle body, and the second connecting member 20 can be used to connect to the vehicle chassis 30. When the first connecting member 10 and the second connecting member 20 are locked, they can be used to lock the chassis 30 and the body so that the chassis 30 and the body can be fixed; when the first connecting member 10 and the second connecting member 20 are unlocked, they can be used to unlock the chassis 30 and the body so that the chassis 30 and the body can be separated.

[0055] The first connecting member 10 has a receiving cavity 11 therein. The receiving cavity 11 extends along a first direction (e.g., attachedFigure 3 One end in the Z - direction (in the Z - direction in [[ID=]]) has an opening, and a locking portion 12 is provided at the opening. The locking portion 12 is arranged on the inner wall of the accommodating cavity 11 near the opening, and the locking portion 12 can be a protrusion protruding towards the accommodating cavity 11. A part of the second connecting member 20 can extend into the accommodating cavity 11 through the opening, and the locking portion 12 is located within the accommodating cavity 11 so that the second connecting member 20 can cooperate with the locking portion 12.

[0056] The second connecting member 20 includes a protective shell 21, a driving member 22, a limiting member 23, and a locking member 24. There is a limiting cavity 211 inside the protective shell 21. The driving member 22 and the limiting member 23 are located within the limiting cavity 211. The driving member 22 is in transmission connection with the limiting member 23, and the driving member 22 can be used to drive the limiting member 23 to move. The protective shell 21 is provided with an accommodating hole 212. The accommodating hole 212 penetrates through the side wall of the protective shell 21 and communicates with the accommodating cavity 11. The locking member 24 is located within the accommodating hole 212. Both the driving member 22 and the limiting member 23 are located within the accommodating cavity 11, and the locking member 24 can be in contact with the driving member 22 or the limiting member 23.

[0057] For example, there can be multiple accommodating holes 212. The multiple accommodating holes 212 can be arranged at intervals along the circumferential direction of the protective shell 21, and one locking member 24 is provided in each accommodating hole 212.

[0058] Wherein, the limiting member 23 has a locking position and an unlocking position. The driving member 22 is used to drive the limiting member 23 to move between the locking position and the unlocking position. In the locking position, the limiting member 23 is used to make a part of the locking member 24 extend out of the accommodating hole 212 so that the locking member 24 and the locking portion 12 are in a locked state. In the unlocking position, the limiting member 23 is used to make the locking member 24 and the locking portion 12 in an unlocked state.

[0059] During the process of the driving member 22 driving the limiting member 23 to move from the unlocking position to the locking position, the limiting member 23 can drive a part of the locking member 24 to extend out of the receiving hole 212, so that a part of the locking member 24 can be located on the locking portion 12, and the other part of the locking member 24 is located in the receiving hole 212. The locking member 24 is used to lock the protective shell 21 and the locking portion 12 together, that is, to lock the first connecting member 10 and the second connecting member 20 together, preventing the first connecting member 10 from detaching from the second connecting member 20. By the movement of the driving member 22, the limiting member 23 can be driven to move. When the limiting member 23 moves, the locking member 24 can be driven to move, so that the locking member 24 can positionally engage the protective shell 21 and the locking portion 12, improving the locking efficiency of the first connecting member 10 and the second connecting member 20. Moreover, when the locking member 24 locks, the acting forces of the first connecting member 10 and the second connecting member 20 act on the locking member 24. The locking member 24 is fixed in position when locking and is not easily loosened, solving the problem of loosening when the first connecting member 10 and the second connecting member 20 are connected, improving the reliability when the first connecting member 10 and the second connecting member 20 are locked, and further improving the service life of the locking mechanism 100.

[0060] After the driving member 22 drives the limiting member 23 to move from the locking position to the unlocking position, a part of the locking member 24 still remains on the locking portion 12, and the other part of the locking member 24 still remains in the receiving hole 212. However, the locking member 24 and the locking portion 12 are in an unlocked state. When the first connecting member 10 is removed from the second connecting member 20, the locking member 24 can be retracted into the receiving hole 212 under the acting force generated when the first connecting member 10 is removed. Only by the movement of the driving member 22, the first connecting member 10 and the second connecting member 20 can be unlocked, making the unlocking method simple.

[0061] Through the movement of the driving member 22, the locking and unlocking of the first connecting member 10 and the second connecting member 20 can be achieved; during the process of achieving unlocking and locking, a control system and electric components are not required, making the composition of the locking mechanism 100 simple and the cost low; at the same time, the locking method and unlocking method of the locking mechanism 100 are simple, and the locking and unlocking of the first connecting member 10 and the second connecting member 20 can be conveniently, quickly and effectively achieved.

[0062] According to the locking mechanism 100 of the embodiment of the present utility model, the unlocking and locking of the first connecting member 10 and the second connecting member 20 are realized by driving the movement of the locking member 24 through the limiting member 23, so that the locking method and unlocking method of the locking mechanism 100 are simple, and the unlocking and locking efficiency of the first connecting member 10 and the second connecting member 20 is improved; in the locked state, the acting forces of the first connecting member 10 and the second connecting member 20 both act on the locking member 24, and the locking member 24 is fixed in position during locking and is not easily loosened, solving the problem of loosening when the first connecting member 10 and the second connecting member 20 are connected, improving the reliability of the first connecting member 10 and the second connecting member 20 during locking, and further improving the service life of the locking mechanism 100.

[0063] According to some embodiments of the present utility model, with reference to Figures 3 - 6 、 Figures 16 - 18 , the locking member 24 is a spherical structure. When the limiting member 23 drives the locking member 24 to move, the movement of the locking member 24 in the receiving hole 212 is faster, and the response of the locking member 24 is more rapid. The locking member 24 is a spherical structure. When the locking member 24 locks the protective shell 21 and the locking portion 12 in a locked state, the normal lines of the acting forces of the first connecting member 10 and the second connecting member 20 both pass through the center of gravity of the locking member 24, which can play a role in balancing and stabilizing after locking.

[0064] According to some embodiments of the present utility model, with reference to Figures 3 - 6 、 Figures 16 - 18 , the wall thickness of the side wall of the protective shell 21 where the receiving hole 212 is located is smaller than the diameter of the locking member 24, so that a part of the locking member 24 can extend out of the receiving hole 212. For example, the limiting member 23 is located in the limiting cavity 211, the locking member 24 is located in the receiving hole 212 communicating with the limiting cavity 211, the limiting member 23 can abut against the inner wall of the protective shell 21, and when the limiting member 23 drives the locking member 24 to move, since the wall thickness of the side wall of the protective shell 21 where the receiving hole 212 is located is smaller than the diameter of the locking member 24, a part of the locking member 24 can extend out of the receiving hole 212.

[0065] According to some embodiments of the present utility model, with reference to 3- Figure 18, the second connecting member 20 further includes a first bearing 251 and a second bearing 252, and the first bearing 251 and the second bearing 252 are disposed within the protective housing 21. The driving member 22 is a driving rod extending in the first direction, and two ends of the driving rod are respectively engaged with the first bearing 251 and the second bearing 252, and two ends of the driving rod respectively pass through the shaft holes of the first bearing 251 and the second bearing 252. For example, two ends of the driving rod respectively have a first limiting surface 222 and a second limiting surface, and a third limiting surface and a fourth limiting surface are respectively disposed within the limiting cavity 211. The inner ring of the first bearing 251 is located on the first limiting surface 222, and the outer ring of the first bearing 251 is located on the third limiting surface to limit the position of the first bearing 251; the inner ring of the second bearing 252 is located on the second limiting surface, and the outer ring of the second bearing 252 is located on the fourth limiting surface to limit the position of the second bearing 252.

[0066] The limiting member 23 is sleeved on the outer peripheral side of the driving rod, and the first bearing 251 and the second bearing 252 are respectively located at two ends of the limiting member 23. The driving rod is in threaded engagement with the limiting member 23 so that the limiting member 23 can move in the first direction. For example, a first external thread 221 is provided on the driving rod, and a first internal thread 234 is provided on the limiting member 23. When the limiting member 23 is sleeved on the outer peripheral side of the driving rod, the first external thread 221 can be in threaded engagement with the first internal thread 234.

[0067] When the driving rod rotates, it can drive the inner rings of the first bearing 251 and the second bearing 252 to rotate. Under the acting force of the rotation of the inner rings of the first bearing 251 and the second bearing 252, the position of the driving rod will not change when the driving rod rotates. However, due to the rotation of the driving rod, it can drive the limiting member 23 to move in the first direction. When the driving rod rotates in one direction, it can drive the limiting member 23 to move in one direction, so as to drive a part of the locking member 24 to extend out of the accommodation hole 212, so that the first connecting member 10 and the second connecting member 20 are locked; on the contrary, when the driving rod rotates in the opposite direction, it can drive the limiting member 23 to move in the opposite direction, so that the first connecting member 10 and the second connecting member 20 are unlocked.

[0068] According to some embodiments of the present invention, referring to 3- Figure 18 , two ends of the protective housing 21 in the first direction respectively have a first port 2161 and a second port 2162. The second connecting member 20 further includes a first end cap 261 and a second end cap 262. The first end cap 261 is used to close the first port 2161, and the second end cap 262 is used to close the second port 2162. Wherein, the first bearing 251 is located at the first port 2161, an installation cavity 2621 is defined within the second end cap 262, and the second bearing 252 is located within the installation cavity 2621.

[0069] By providing a first port 2161 and a second port 2162 at both ends of the protective housing 21 along the first direction, it is convenient for the assembly of the driving member 22, the limiting member 23, the locking member 24, and the first bearing 251. For example, the first bearing 251 can be assembled into the limiting cavity 211 through the first port 2161, and the driving member 22, the limiting member 23, and the locking member 24 can be assembled into the limiting cavity 211 through the second port 2162. Among them, the second bearing 252 is located in the installation cavity 2621 of the second end cover 262, which can save the space of the limiting cavity 211. The above-mentioned fourth limiting surface is the bottom wall of the protective housing 21 close to the second end cover 262, which is convenient for the assembly of the second bearing 252; providing the first end cover 261 and the second end cover 262 on the first port 2161 and the second port 2162 respectively can be used to seal the limiting cavity 211, which can prevent external water or dust from entering the limiting cavity 211 and improve the safety of the limiting member 23 and the driving member 22 during operation.

[0070] For example, the first end cover 261 has a first mounting hole 2611, and the protective housing 21 has a second mounting hole 2181 that cooperates with the first mounting hole 2611. The first fastening member 271 can be sequentially passed through the first mounting hole 2611 and the second mounting hole 2181 to fix the first end cover 261 to one end of the protective housing 21 to close the first port 2161. The second end cover 262 has a third mounting hole 2623, and the protective housing 21 has a fourth mounting hole 2182 that cooperates with the third mounting hole 2623. The second fastening member 272 is passed through the third mounting hole 2623 and the fourth mounting hole 2182 to fix the second end cover 262 to the other end of the protective housing 21 to close the second port 2162.

[0071] According to some embodiments of the present invention, referring to 3- Figure 18 , a through hole 2622 is provided on the second end cover 262, and the driving rod is adapted to extend out of the protective housing 21 through the through hole 2622. The driving rod extending out of the protective housing 21 can be rotated by equipment tools, which is convenient for operating the driving rod. For example, the equipment tools can be an electric wrench or a manual wrench.

[0072] According to some embodiments of the present invention, referring to 3- Figure 4 、 Figure 11 、 Figure 18, a first limiting portion 231 is provided on the limiting member 23, and a second limiting portion 214 is provided on the protective case 21. The second limiting portion 214 cooperates with the first limiting portion 231 to limit the movement range of the limiting member 23. When the driving member 22 drives the limiting member 23 to move, the limiting member 23 can move along a first direction. When the second limiting portion 214 cooperates with the first limiting portion 231, the driving member 22 no longer drives the limiting member 23 to move, avoiding the limiting member 23 continuously moving along the first direction and causing damage to the limiting member 23 and the protective case 21.

[0073] According to some embodiments of the present invention, referring to 3- Figure 4 , Figure 11 , Figure 18 , the first limiting portion 231 is a first convex portion provided on the outer peripheral side of the limiting member 23. For example, the first convex portion can be arranged in a circle around the outer peripheral side of the limiting member 23. The second limiting portion 214 is a second convex portion provided on the inner wall of the protective case 21 and extending towards the inside of the limiting cavity 211. For example, the second convex portion can be arranged in a circle around the inner wall of the protective case 21. By the abutment of the first convex portion and the second convex portion, the movement range of the limiting member 23 can be limited.

[0074] According to some embodiments of the present invention, referring to 3- Figure 4 , Figure 11 , a guiding assembly is provided between the protective case 21 and the limiting member 23 for guiding the movement direction of the limiting member 23. For example, the limiting member 23 is sleeved on the outer peripheral side of the driving rod, and the limiting member 23 is in threaded cooperation with the driving rod. When the driving rod rotates, it can drive the limiting member 23 to move along the first direction. Due to the limiting effect of the guiding assembly, the limiting member 23 can only move along the first direction.

[0075] According to some embodiments of the present invention, referring to 3- Figure 4 , Figure 11 , the guiding assembly includes a cooperating guiding groove 232 and guiding block 215. The guiding block 215 is located on the inner wall of the protective case 21, and the guiding groove 232 is located on the outer peripheral wall of the limiting member 23. The guiding hole on the protective case 21 can be located in the guiding groove 232 of the limiting member 23. When the driving member 22 drives the limiting member 23 to move, it can prevent the limiting member 23 from rotating, improving the stability and reliability of the limiting member 23 when moving along the first direction. For example, the number of the guiding grooves 232 and guiding blocks 215 can both be provided with a plurality. The number of the guiding grooves 232 and guiding blocks 215 is equal and they correspond one by one. With the cooperation of the plurality of guiding grooves 232 and the plurality of guiding blocks 215, the limiting member 23 can be better guided to move along the first direction.

[0076] According to some embodiments of the present invention, referring to Figure 11 , Figures 16 - 18, the limiting member 23 has a first guiding inclined surface 233, and the first guiding inclined surface 233 guides the locking member 24 to move outward of the receiving hole 212. Since the limiting member 23 has the first guiding inclined surface 233, when the limiting member 23 drives the locking member 24 to move, the first guiding inclined surface 233 can drive the locking member 24 to move outward of the receiving hole 212. For example, the limiting member 23 has a first end and a second end oppositely arranged along the first direction, the locking member 24 is arranged near the first end of the limiting member 23, the first guiding inclined surface 233 is provided on the first end of the limiting member 23, and in the direction from the first end to the second end of the limiting member 23, the first guiding inclined surface 233 extends obliquely in the direction towards the locking member 24. When the limiting member 23 is in the unlocking position, the first guiding inclined surface 233 abuts against the locking member 24, and when the limiting member 23 moves along the first direction, the first guiding inclined surface 233 moves along the first direction, so that the first guiding inclined surface 233 drives the locking member 24 to move outward of the receiving hole 212.

[0077] According to some embodiments of the present invention, referring to Figure 5 , Figures 16 - 18 , the locking portion 12 is a first limiting protrusion 121 arranged at the opening and extending towards the receiving cavity 11, and the first limiting protrusion 121 is used for restricting the locking member 24 within the receiving cavity 11. A part of the second connecting member 20 is adapted to extend into the receiving cavity 11 of the first connecting member 10, that is, the first connecting member 10 is located on the circumferential outer side of a part of the second connecting member 20; when the limiting member 23 is in the locking position, a part of the locking member 24 extends out of the receiving hole 212 and is located on the first limiting protrusion 121, and another part of the locking member 24 is located within the receiving hole 212, so that the locking member 24 can lock the first connecting member 10 and the second connecting member 20, preventing the first connecting member 10 and the second connecting member 20 from separating.

[0078] For example, the first limiting protrusion 121 can extend around the inner peripheral wall of the first connecting member 10, so that the first limiting protrusion 121 can abut against each locking member 24.

[0079] According to some embodiments of the present invention, referring to Figure 5 , Figures 16 - 18, the first limiting protrusion 121 has a second guiding inclined surface 122, and the second guiding inclined surface 122 is used to guide the locking member 24 to move into the receiving hole 212. When the limiting member 23 is in the unlocking position, at this time, the locking member 24 and the locking portion 12 are in the unlocked state, but a part of the locking member 24 is still located on the first limiting protrusion 121, and another part of the locking member 24 is located in the receiving hole 212. Since the locking member 24 and the locking portion 12 are in the unlocked state, the first connecting member 10 can be detached from the second connecting member 20. During the process of detaching the first connecting member 10 from the second connecting member 20, the second guiding inclined surface 122 can drive the locking member 24 to move into the receiving hole 212, so that a part of the locking member 24 retracts into the receiving hole 212. Under the action of the second guiding inclined surface 122, the locking member 24 can quickly retract into the receiving hole 212.

[0080] For example, in the direction from the first end to the second end of the limiting member 23, the second guiding inclined surface 122 extends obliquely towards the inside of the receiving cavity 11.

[0081] According to some embodiments of the present invention, referring to Figures 16 - 20 , a second limiting protrusion 213 is provided in the receiving hole 212, and the second limiting protrusion 213 is used to limit the protruding amount of the limiting member 23 protruding from the receiving hole 212, prevent the limiting member 23 from completely protruding from the receiving hole 212, and avoid the problem of the limiting member 23 falling from the receiving hole 212.

[0082] For example, the second limiting protrusion 213 can be provided at a position close to the outer wall of the protective case 21 of the receiving hole 212, which can not only be used to limit the protruding amount of the limiting member 23 protruding from the receiving hole 212, but also facilitate the movement of the limiting member 23 in the receiving hole 212.

[0083] According to some embodiments of the present invention, referring to Figures 16 - 20 , the second limiting protrusion 213 has a surface that fits with the locking member 24, and the surface is an inclined surface or a curved surface. When the surface fits with the locking member 24, the locking member 24 can still rotate in the receiving hole 212, and the problem of the limiting member 23 falling from the receiving hole 212 is also avoided.

[0084] For example, the second limiting protrusion 213 can extend around the inner peripheral wall of the receiving hole 212.

[0085] In a specific example, the locking member 24 has a spherical structure, and the surface is an arc surface that fits the locking member 24. The spherical structure of the locking member 24 enables the locking member 24 to move 360° within the receiving hole 212. The second limiting protrusion 213 has an arc surface that fits the locking member 24. When the limiting member 23 drives the locking member 24 to extend out of the receiving hole 212, the arc surface can gradually fit with the locking member 24, enabling the locking member 24 to still rotate within the receiving hole 212. The included angle between the surface and the inner peripheral wall of the receiving hole 212 is a, which can satisfy 165° ≤ a ≤ 170°, ensuring the extension amount of the locking member 24 extending out of the receiving hole 212.

[0086] A vehicle according to an embodiment of the second aspect of the present invention includes: a vehicle body and a chassis 30; a locking mechanism 100 according to the above-mentioned first aspect embodiment of the present invention, a first connecting member 10 is connected to one of the vehicle body and the chassis 30, and a second connecting member 20 is connected to the other of the vehicle body and the chassis 30.

[0087] The first connecting member 10 can be connected to the vehicle body, and the second connecting member 20 can be connected to the chassis 30; or, the first connecting member 10 can be connected to the chassis 30, and the second connecting member 20 can be connected to the vehicle body.

[0088] In a specific example, the first connecting member 10 further includes a first flange 13, the first flange 13 surrounds the outer peripheral wall of the receiving cavity 11, and a plurality of first connecting holes 131 are arranged at intervals on the first flange 13. Bolts can be passed through the first connecting holes 131 to connect the first connecting member 10 to the vehicle body or the chassis 30. The second connecting member 20 further includes a second flange 217, the second flange 217 surrounds the outside of the protective shell 21, and a plurality of second connecting holes 2171 are arranged at intervals on the second flange 217. Bolts can be passed through the second connecting holes 2171 to connect the second connecting member 20 to the vehicle body or the chassis 30.

[0089] For the vehicle according to the embodiment of the present invention, by providing the above-mentioned locking mechanism 100, the locking and unlocking methods of the locking mechanism 100 are simple, improving the unlocking and locking efficiency of the first connecting member 10 and the second connecting member 20; in the locked state, the acting forces of the first connecting member 10 and the second connecting member 20 both act on the locking member 24, improving the reliability when the first connecting member 10 and the second connecting member 20 are locked, and further improving the reliability when the chassis 30 and the vehicle body are connected.

[0090] In the description of this specification, the descriptions with reference to terms such as "some embodiments", "optionally", "further", or "some examples" mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0091] Although the embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present utility model. The scope of the present utility model is defined by the claims and their equivalents.

Claims

1. A locking mechanism, characterized in that: include: A first connecting member, wherein the first connecting member has a receiving cavity therein, one end of the receiving cavity along the first direction has an opening, and a locking portion is provided at the opening; a second connecting member, a portion of which is suitable for extending into the accommodating cavity, the second connecting member comprising a protective shell, a driving member, a limiting member and a locking member, the protective shell having a limiting cavity, the driving member and the limiting member being located in the limiting cavity, the driving member being drivingly connected to the limiting member, the protective shell being provided with a accommodating hole penetrating a side wall of the protective shell, the locking member being located in the accommodating hole; In which, the limit member has a locking position and an unlocking position, and the driving member is used to drive the limit member to move between the locking position and the unlocking position. In the locking position, the limit member is used to make a part of the locking member extend out of the accommodating hole so that the locking member and the locking part are in a locked state. In the unlocking position, the limit member is used to make the locking member and the locking part in an unlocked state.

2. The locking mechanism according to claim 1, characterized in that: The locking piece is a spherical structure.

3. The locking mechanism according to claim 2, characterized in that: The wall thickness of the side wall of the protective shell where the accommodating hole is located is smaller than the diameter of the locking member.

4. The locking mechanism according to claim 1, characterized in that: The second connecting member further includes a first bearing and a second bearing disposed in the protective shell, and the driving member is a driving rod extending along the first direction, and two ends of the driving rod are respectively matched with the first bearing and the second bearing.

5. The locking mechanism according to claim 4, characterized in that: The limiting member is sleeved on the outer peripheral side of the driving rod, and the driving rod is threadedly matched with the limiting member, so that the limiting member can move along the first direction.

6. The locking mechanism according to claim 4, characterized in that: The protective shell has a first port and a second port at both ends along the first direction, respectively. The second connecting member also includes a first end cover and a second end cover. The first end cover is used to close the first port, and the second end cover is used to close the second port. The first bearing is located at the first port, and an installation cavity is defined in the second end cover. The second bearing is located in the installation cavity.

7. The locking mechanism according to claim 6, characterized in that: The second end cover is provided with a through hole, and the driving rod is suitable for extending out of the protective shell through the through hole.

8. The locking mechanism according to claim 1, characterized in that: The limiting member is provided with a first limiting portion, and the protective shell is provided with a second limiting portion cooperating with the first limiting portion and used to limit the movable range of the limiting member.

9. The locking mechanism according to claim 8, characterized in that: The first limiting portion is a first protrusion disposed on the outer peripheral side of the limiting member, and the second limiting portion is a second protrusion disposed on the inner wall of the protective shell and extending toward the inside of the limiting cavity.

10. The locking mechanism according to claim 1, characterized in that: A guide assembly is provided between the protective shell and the limiting member.

11. The locking mechanism according to claim 10, characterized in that: The guide assembly comprises a matching guide groove and a guide block, wherein the guide block is located on the inner wall of the protective shell, and the guide groove is located on the outer peripheral wall of the limiting member.

12. The locking mechanism according to claim 1, characterized in that: The limiting member has a first guiding inclined surface for guiding the locking member to move toward the outside of the accommodating hole.

13. The locking mechanism according to claim 1, characterized in that: The locking portion is a first limiting protrusion arranged at the opening and extending toward the accommodating cavity, and the first limiting protrusion is used to limit the locking member within the accommodating cavity.

14. The locking mechanism according to claim 13, characterized in that: The first limiting protrusion has a second guiding inclined surface for guiding the locking member to move toward the accommodating hole.

15. The locking mechanism according to claim 1, characterized in that: A second limiting protrusion is arranged in the accommodating hole, and the second limiting protrusion is used to limit the extension amount of the limiting member from the accommodating hole.

16. The locking mechanism according to claim 15, characterized in that: The second limiting protrusion has a surface that fits with the locking member, and the surface is an inclined surface or a curved surface.

17. A vehicle, characterized in that: include: body and chassis; The locking mechanism according to any one of claims 1 to 16, wherein the first connecting member is connected to one of the vehicle body and the chassis, and the second connecting member is connected to the other of the vehicle body and the chassis.

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