Quick-change lock assembly, battery, and vehicle

Abstract

A quick-change lock assembly (400), a battery (100), and a vehicle (1000), which relate to the technical field of quick-change lock structures. The quick-change lock assembly (400) comprises a lock sleeve (410), a rotating member (420), a locking member (430) and an anti-rotation assembly (440), wherein the anti-rotation assembly (440) is configured to lock a rotating section (422) so as to limit the rotation of a first threaded section (421), such that a second threaded section (431) and a connection section (432) are kept in a state in which the second threaded section (431) and the connection section (432) are locked to a lock seat, or the anti-rotation assembly (440) is configured to unlock the rotating section (422), such that the first threaded section (421) can rotate relative to the second threaded section (431), and the second threaded section (431) and the connection section (432) can move to the outside of a cavity (411) in an axial direction so as to be unlocked from the lock seat. The quick-change lock assembly (400) maintains a more stable locking state when a vibration occurs.

Description

Quick-change lock assembly, battery and vehicle

[0001] This application refers to Chinese Patent Application No. 202420350149.1 filed on February 26, 2024, entitled “Quick-Change Lock Assembly, Battery and Vehicle,” which is incorporated herein by reference in its entirety. Technical Field

[0002] The present application relates to the technical field of quick-change lock structures, and in particular provides a quick-change lock assembly, a battery, and a vehicle. Background Art

[0003] A quick-change lock is used to lock the battery to the vehicle's body. In related art, quick-change locks achieve quick locking and unlocking via a tightening screw and a counterscrew threaded together within a locking sleeve. The counterscrew's rotation within the sleeve is restricted, and rotating the tightening screw causes the counterscrew to move axially, raising and lowering the battery. This allows the counterscrew, located outside the sleeve, to descend for compression and securement, or ascend for unlocking and removal.

[0004] However, during long-term use, the fastening screw of the related art may rotate and loosen due to vibration, resulting in poor stability of the quick-change lock.

[0005] Application Contents

[0006] The purpose of the embodiments of the present application is to provide a quick-change lock assembly, a battery, and a vehicle, aiming to solve the problem in the related art that the quick-change lock is prone to loosening due to vibration, resulting in poor stability of the quick-change lock.

[0007] To achieve the above objectives, the technical solutions adopted in the embodiments of the present application are:

[0008] In the first aspect, an embodiment of the present application provides a quick-change lock assembly for locking to a lock seat, the quick-change lock assembly includes a lock sleeve, a knob, a lock member and an anti-rotation assembly; a hollow cavity is formed inside the lock sleeve, the cavity has an axial direction, the knob member includes a first threaded segment and a twisting segment formed along the axial direction, the first threaded segment is arranged in the cavity, the first threaded segment is configured to be rotatable around the axis, the lock member includes a connecting segment and a second threaded segment formed along the axial direction, the connecting segment extends out of the cavity and is used to lock with the lock seat, the second threaded segment is limitedly arranged in the cavity and threadedly cooperates with the first threaded segment, and the second threaded segment is configured to be movable in the axial direction; the anti-rotation assembly is used to lock to the twisting segment to limit the rotation of the first threaded segment, so that the second threaded segment and the connecting segment remain locked to the lock seat; or, the anti-rotation assembly is used to release the lock of the twisting segment, so that the first threaded segment can rotate relative to the second threaded segment, and the second threaded segment and the connecting segment can move axially outside the cavity to release the lock of the lock seat.

[0009] The beneficial effects of the embodiments of the present application: The quick-change lock assembly provided by the embodiments of the present application performs a twisting operation on the twisting section of the twisting member so that the first threaded segment can rotate relative to the second threaded segment of the locking member, and then the second threaded segment and the connecting segment can move in the axial direction to achieve locking or unlocking on the lock seat; at the same time, by providing an anti-rotation assembly, the anti-rotation assembly can be locked to the twisting section to limit the relative rotation between the first threaded segment and the second threaded segment, so that even in the event of vibration, the twisting section will not rotate due to vibration, and the probability of the second threaded segment and the connecting segment moving in the axial direction is also low, and the locking state of the quick-change lock assembly is more stable.

[0010] In some embodiments, the anti-rotation assembly includes a first anti-rotation structure, which is arranged on the torsion section and is used to limit relative rotation with the torsion section; a first locking portion is formed along the outer peripheral side surface of the first anti-rotation structure, and a second locking portion is formed along the inner wall surface of the locking sleeve, the first locking portion and the second locking portion are engaged with each other in the circumferential direction, and the first anti-rotation structure can move in the axial direction to separate the first locking portion from the second locking portion.

[0011] By adopting the above-mentioned technical solution, the first locking portion formed on the outer peripheral side surface of the first anti-rotation structure is engaged with the second locking portion formed on the inner wall surface of the locking sleeve in the circumferential direction, and the first anti-rotation structure cannot rotate axially relative to the locking sleeve. Since the first anti-rotation structure and the torsion section are also restricted from relative rotation, the torsion section is locked and cannot rotate around the axis when the first locking portion and the second locking portion are engaged; and the first anti-rotation structure can move in the axial direction to separate the first locking portion from the second locking portion, so that the torsion section can continue to be operated to cause the first threaded section and the second threaded section to rotate relative to each other, thereby enabling the connecting section to move in the axial direction and achieve the purpose of locking or unlocking.

[0012] In some embodiments, the anti-rotation assembly includes a first anti-rotation structure and a second anti-rotation structure, the first anti-rotation structure is arranged on the torsion section and is used to limit the relative rotation with the torsion section, and the second anti-rotation structure is connected to the locking sleeve; a first locking portion is formed on the outer peripheral side surface of the first anti-rotation structure, and a through hole is opened on the second anti-rotation structure for the torsion section to pass through, and a third locking portion is formed on the inner wall of the through hole; the first locking portion and the third locking portion are engaged with each other in the circumferential direction, and the first anti-rotation structure can move in the axial direction to separate the third locking portion from the first locking portion.

[0013] By adopting the above-mentioned technical solution, the first stopping portion formed on the outer peripheral side surface of the first anti-rotation structure is engaged with the third stopping portion formed on the inner wall surface of the second anti-rotation structure in the circumferential direction, and the first anti-rotation structure cannot rotate axially relative to the second anti-rotation structure. Since the first anti-rotation structure and the torsion section are also restricted from relative rotation, the torsion section is locked and cannot rotate around the axis when the first stopping portion and the third stopping portion are engaged; and the first anti-rotation structure can move in the axial direction to separate the first stopping portion from the third stopping portion, so that the torsion section can continue to be operated to cause the first threaded section and the second threaded section to rotate relative to each other, thereby enabling the connecting section to move in the axial direction and achieve the purpose of locking or unlocking.

[0014] In some embodiments, a protrusion is further formed on the inner wall of the through hole. The protrusion is provided on a side of the third locking portion away from the first threaded segment. The protrusion is used to limit the movement of the first locking portion in the axial direction.

[0015] By adopting the above technical solution, the protrusion can be used to limit the movement of the first locking portion in the axial direction, so that the first anti-rotation structure is limited to move between the first thread segment and the protrusion, reducing the probability of falling off due to excessive movement.

[0016] In some embodiments, the quick-change lock assembly further includes an elastic return member, wherein opposite ends of the elastic return member respectively abut against the first thread segment and the first anti-rotation structure.

[0017] By adopting the above-mentioned technical solution, when the first anti-rotation structure has a tendency to move toward the first threaded segment and separate from the second anti-rotation structure due to vibration or other conditions, the elastic reset member can apply a force to the first anti-rotation structure to reduce the probability of accidental separation of the first anti-rotation structure and the second anti-rotation structure, maintain the engaged state of the first locking portion and the third locking portion, and thereby improve the stability of the quick-change lock assembly.

[0018] In some embodiments, a boss portion is formed on one side of the first anti-rotation structure in the axial direction. The boss portion is an annular structure. The boss portion passes through the boss portion and extends out of the locking sleeve.

[0019] By adopting the above-mentioned technical solution, by passing the boss portion through the raised portion and extending it out of the lock sleeve, when an unlocking operation is required, the boss portion extending to the outside can be operated more conveniently, and the boss portion is lifted into the lock sleeve to move the first anti-rotation structure in the direction of the first threaded segment, thereby separating the first locking portion of the first anti-rotation structure and the third locking portion of the second anti-rotation structure to achieve the purpose of unlocking.

[0020] In some embodiments, the second anti-rotation structure is fixed to one end of the locking sleeve located in the torsion section. When the first locking portion and the third locking portion are in the locked state, the boss portion extends out of the second anti-rotation structure and forms an unlocking section; in the axial direction, the height of the unlocking section is greater than or equal to the height of the first locking portion and the third locking portion overlapping in the locked state.

[0021] By adopting the above-mentioned technical solution, the height of the unlocking section is set to be greater than or equal to the height of the first locking portion and the third locking portion overlapping in the locked state. Therefore, when unlocking the first locking portion and the third locking portion, it is only necessary to push the unlocking section toward the inside of the lock sleeve outside the second anti-rotation structure, and make the end of the unlocking section be pushed to be flush with the end of the second anti-rotation structure to achieve the separation and unlocking of the first locking portion and the third locking portion without pushing the unlocking section into the second anti-rotation structure, thereby effectively improving the convenience of the unlocking operation.

[0022] In some embodiments, the boss portion and the raised portion are slidably engaged.

[0023] By adopting the above-mentioned technical solution, by setting the boss part and the raised part to be in sliding fit, during the process of pushing and unlocking the unlocking section of the first anti-rotation structure, the boss part can slide relative to the inner wall surface of the raised part, thereby making the pushing operation of the unlocking section easier.

[0024] In some embodiments, the first locking portion and the third locking portion are both gear structures; the gear of the first locking portion forms a chamfer at the outer edge toward the third locking portion, and / or the gear of the third locking portion forms a chamfer at the outer edge toward the first locking portion.

[0025] By adopting the above-mentioned technical solution, by setting a chamfer angle on the gear of the first locking part, and / or setting a chamfer angle on the gear of the third locking part, when the first locking part and the third locking part are separated, the process of the first locking part re-engaging with the third locking part is easier, thereby making the locking and unlocking operations of the quick-change lock assembly smoother.

[0026] In some embodiments, a fourth locking portion is formed on the outer side surface of the torsion section, the first anti-rotation structure is provided with a mounting hole, and a fifth locking portion is formed on the inner wall surface of the mounting hole. The fourth locking portion and the fifth locking portion are engaged with each other in the circumferential direction, and the fourth locking portion and the fifth locking portion are slidably matched in the axial direction.

[0027] By adopting the above-mentioned technical solution, the torsion section is engaged with the fifth stopping portion formed in the mounting hole of the first anti-rotation structure through the fourth stopping portion, thereby limiting the relative rotation between the first anti-rotation structure and the torsion section. At the same time, the free rotation of the torsion section relative to the first anti-rotation structure can be achieved by simply moving the first anti-rotation structure in the axial direction relative to the torsion section and separating the fourth stopping portion and the fifth stopping portion.

[0028] In a second aspect, an embodiment of the present application provides a battery, comprising a housing and a quick-change lock assembly as described above, wherein the quick-change lock assembly is provided on the housing and is used for installing the housing on a vehicle.

[0029] Beneficial effects of the embodiments of the present application: The battery provided in the embodiments of the present application includes the above-mentioned quick-change lock assembly. On the basis of the more stable locking state of the above-mentioned quick-change lock assembly, the stability of the battery during fixed assembly is better.

[0030] In a third aspect, an embodiment of the present application provides a vehicle, comprising a vehicle body, a battery, and a quick-change lock assembly as described above, wherein the quick-change lock assembly is used to lock the battery to the vehicle body.

[0031] Beneficial effects of the embodiments of the present application: The vehicle provided by the embodiments of the present application includes the above-mentioned quick-change lock assembly. On the basis of the more stable locking state of the above-mentioned quick-change lock assembly, the stability of the battery fixed to the vehicle body through the quick-change lock assembly is better. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the embodiments or related technical descriptions. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0033] FIG1 is a schematic structural diagram of a vehicle provided in some embodiments of the present application;

[0034] FIG2 is an exploded view of a battery provided in some embodiments of the present application;

[0035] FIG3 is a schematic structural diagram of a quick-change lock assembly provided in an embodiment of the present application;

[0036] FIG4 is a cross-sectional view of a quick-change lock assembly provided in an embodiment of the present application;

[0037] FIG5 is a partial enlarged schematic diagram of point A in FIG4 ;

[0038] FIG6 is an exploded view of a quick-change lock assembly provided in an embodiment of the present application;

[0039] FIG7 is a schematic structural diagram of a first anti-rotation structure provided in an embodiment of the present application;

[0040] FIG8 is a schematic structural diagram of a second anti-rotation structure provided in an embodiment of the present application.

[0041] Among them, the reference numerals in the figures are:

[0042] 1000, vehicle;

[0043] 100, battery; 200, controller; 300, motor;

[0044] 10. Box; 11. First part; 12. Second part; 20. Battery cell;

[0045] 400, quick-change lock assembly;

[0046] 410, locking sleeve; 411, cavity;

[0047] 420, twisting member; 421, first threaded section; 422, twisting section; 4221, fourth locking portion;

[0048] 430, locking member; 431, second threaded section; 432, connecting section;

[0049] 440, anti-rotation assembly; 441, first anti-rotation structure; 4411, first locking portion; 4412, boss portion; 44121, unlocking section; 4413, mounting hole; 4414, fifth locking portion; 442, second anti-rotation structure; 4421, through hole; 4422, third locking portion; 4423, raised portion;

[0050] 450, elastic reset member;

[0051] Z, axial direction. DETAILED DESCRIPTION

[0052] The following describes in detail embodiments of the present application, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present application, and should not be construed as limiting the present application.

[0053] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this application belongs; the terms used herein are for the purpose of describing specific embodiments only and are not intended to limit this application. The terms "including" and "having" and any variations thereof in the specification and claims of this application and the accompanying drawings are intended to cover non-exclusive inclusions.

[0054] In the description of the embodiments of the present application, the terms "length", "width", "thickness", "inside", "outside", "up", "down", "left", "right", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they should not be understood as limitations on the present application.

[0055] The terms "first," "second," and the like are used solely for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the technical features being referred to. For example, the terms "first guide member" and "second guide member" are used solely to distinguish between the different guide members and do not define their order. The first guide member could also be named "second guide member," and the second guide member could also be named "first guide member" without departing from the scope of the various described embodiments. Furthermore, the terms "first," "second," and the like do not necessarily specify that the features being referred to are different.

[0056] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, the terms "connected", "connection", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances. The meaning of "plurality" is at least two, that is, two or more.

[0057] In this application, "and / or" is simply a way to describe the relationship between related objects, indicating that three possible relationships exist. For example, "A and / or B" can mean: A exists alone, A and B exist simultaneously, or B exists alone. Additionally, the character " / " in this document generally indicates that the related objects are in an "or" relationship.

[0058] It should be noted that, in this application, words such as "in some embodiments", "exemplarily", "for example", etc. are used to indicate examples, illustrations or explanations. Any embodiment or design described in this application as "in some embodiments", "exemplarily", "for example" should not be interpreted as being more preferred or more advantageous than other embodiments or designs. Specifically, the use of words such as "in some embodiments", "exemplarily", "for example" is intended to present related concepts in a concrete way, meaning that the specific features, structures or characteristics described in conjunction with the embodiment may be included in at least one embodiment of the present application. The appearance of the above words in various places in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0059] In order to make the purpose, technical solutions and advantages of this application more clear, this application is further described in detail below with reference to the accompanying drawings and embodiments.

[0060] Currently, market developments indicate that power batteries are becoming increasingly widely used. They are not only used in energy storage systems such as hydropower, thermal, wind, and solar power plants, but are also widely used in electric vehicles like electric bicycles, electric motorcycles, and electric vehicles, as well as in military equipment and aerospace. As power battery applications continue to expand, market demand is also growing.

[0061] When used in vehicles such as electric vehicles, a quick-change lock is usually used to lock the battery to the vehicle body in order to improve the efficiency of battery replacement. In the related art, the quick-change lock achieves the purpose of quick-change locking and unlocking by means of a tightening screw and a locking screw that are arranged in a lock sleeve and threadedly matched with each other; wherein, the rotation of the locking screw in the lock sleeve is restricted, and the locking screw is moved axially by rotating the tightening screw to achieve the purpose of lifting and lowering, so that the part of the locking screw located outside the lock sleeve can descend to achieve compression and locking of the lock seat part fixed to the vehicle body, or rise to separate from the lock seat and achieve the purpose of unlocking and disassembling. However, during the long-term use of the quick-change lock, there is a linear tendency that the tightening screw vibrates due to the vibration of the vehicle, causing it to rotate and loosen, thereby causing the locking screw to move and affecting the locking effect of the quick-change lock. Therefore, the stability of the quick-change lock is poor.

[0062] Based on the above considerations, in order to solve the problem that the quick-change lock in the related art is prone to loosening due to vibration, resulting in poor stability of the quick-change lock, a quick-change lock assembly is designed, which uses an anti-rotation assembly to lock the twisting section to limit the rotation of the first thread section, thereby effectively reducing the probability of the twisting section and the first thread section rotating in the event of vibration, so that the second thread section and the connecting section can remain locked to the lock seat; at the same time, it is only necessary to release the lock of the anti-rotation assembly on the twisting section, and then the twisting operation can be performed on the twisting section so that the second thread section and the connecting section can move axially out of the cavity to release the lock on the lock seat.

[0063] The quick-change lock assembly disclosed in the embodiment of the present application can be used for quick-change operations of assembly and disassembly of a component structure. For the convenience of explanation, the following embodiments are described using an example of a quick-change lock assembly of an embodiment of the present application being used to lock a battery on a vehicle body.

[0064] Please refer to Figure 1, which is a schematic structural diagram of a vehicle 1000 provided in some embodiments of the present application. The vehicle 1000 can be a fuel vehicle, a gas vehicle or a new energy vehicle. The new energy vehicle can be a pure electric vehicle, a hybrid vehicle or an extended-range vehicle, etc. A battery 100 is provided inside the vehicle 1000, and the battery 100 can be provided at the bottom, head or tail of the vehicle 1000. The battery 100 can be used to power the vehicle 1000. For example, the battery 100 can serve as an operating power source for the vehicle 1000. The vehicle 1000 may also include a controller 200 and a motor 300. The controller 200 is used to control the battery 100 to power the motor 300, for example, for starting, navigating and driving the vehicle 1000.

[0065] In some embodiments of the present application, the battery 100 can serve not only as an operating power source for the vehicle 1000, but also as a driving power source for the vehicle 1000, replacing or partially replacing fuel or natural gas to provide driving power for the vehicle 1000.

[0066] Please refer to Figure 2, which is an exploded view of a battery 100 provided in some embodiments of the present application. The battery 100 includes a housing 10 and a battery cell 20, with the battery cell 20 housed within the housing 10. The housing 10 provides a storage space for the battery cell 20 and can have various structures. In some embodiments, the housing 10 can include a first portion 11 and a second portion 12, which overlap each other and together define a storage space for the battery cell 20. The second portion 12 can be a hollow structure with one end open. The first portion 11 can be a plate-like structure, with the first portion 11 overlapping the open side of the second portion 12, so that the first portion 11 and the second portion 12 together define a storage space. Alternatively, the first portion 11 and the second portion 12 can each be a hollow structure with one end open, with the open side of the first portion 11 overlapping the open side of the second portion 12. Of course, the housing 10 formed by the first portion 11 and the second portion 12 can have various shapes, such as a cylinder, a rectangular parallelepiped, etc.

[0067] In the battery 100, there may be multiple battery cells 20, and the multiple battery cells 20 may be connected in series, in parallel, or in a hybrid connection. A hybrid connection refers to a combination of series and parallel connections among the multiple battery cells 20. The multiple battery cells 20 may be directly connected in series, in parallel, or in a hybrid connection, and then the entire battery cell 20 may be housed within the housing 10. Alternatively, the battery 100 may be constructed by first connecting multiple battery cells 20 in series, in parallel, or in a hybrid connection to form a battery module, which is then connected in series, in parallel, or in a hybrid connection to form a complete battery module, and then housed within the housing 10. The battery 100 may also include other structures, such as a busbar assembly for electrically connecting the multiple battery cells 20.

[0068] Each battery cell 20 may be a secondary battery or a primary battery, and may also be a lithium-sulfur battery, a sodium-ion battery, or a magnesium-ion battery, but is not limited thereto. The battery cell 20 may be cylindrical, flat, rectangular, or in other shapes.

[0069] According to some embodiments of the present application, please refer to Figures 3 to 5. The embodiments of the present application provide a quick-change lock assembly 400 for locking to a lock seat (not shown in the figure). The quick-change lock assembly 400 includes a lock sleeve 410, a knob 420, a lock member 430 and an anti-rotation assembly 440; a hollow cavity 411 is formed inside the lock sleeve 410, and the cavity 411 has an axial direction Z. The knob 420 includes a first thread segment 421 and a knob segment 422 formed along the axial direction Z. The first thread segment 421 is arranged in the cavity 411, and the first thread segment 421 is configured to rotate around the axis. The lock member 430 includes a connecting segment 432 and a second thread segment 431 formed along the axial direction Z. The segment 432 extends out of the cavity 411 and is used to lock with the lock seat. The second threaded segment 431 is limitedly set in the cavity 411 and is threadedly engaged with the first threaded segment 421. The second threaded segment 431 is configured to be movable along the axial direction Z; the anti-rotation component 440 is used to lock to the twisting segment 422 to limit the rotation of the first threaded segment 421, so that the second threaded segment 431 and the connecting segment 432 remain locked to the lock seat; or, the anti-rotation component 440 is used to release the lock of the twisting segment 422, so that the first threaded segment 421 can rotate relative to the second threaded segment 431, and the second threaded segment 431 and the connecting segment 432 can move axially out of the cavity 411 to release the lock of the lock seat.

[0070] The locking sleeve 410 may be, but is not limited to, a columnar structure, a block structure, a spherical structure, etc. A hollow cavity 411 is formed inside the locking sleeve 410 , so that the first threaded section 421 of the knob 420 and the second threaded section 431 of the locking member 430 can be connected within the cavity 411 .

[0071] The axial direction Z of the cavity 411 refers to the direction from one end of the cavity connected to the outside of the locking sleeve to the other end; illustratively, the cavity can be a columnar structure, and the axial direction of the columnar structure is the axial direction Z of the cavity 411.

[0072] The knob 420 is used for a user to operate to realize the locking and unlocking functions of the quick-change lock assembly 400 ; wherein the knob 420 includes a first threaded section 421 and a knob section 422 formed along the axial direction Z.

[0073] The first threaded segment 421 is configured to threadably engage with the second threaded segment 431 of the locking element 430. Optionally, the first threaded segment 421 may be a cylindrical structure with external threads; alternatively, the first threaded segment 421 may be a cylindrical structure with a threaded hole. It is understood that the first threaded segment 421 can be completely contained within the cavity 411 to facilitate connection with the locking element 430; alternatively, the first threaded segment 421 may be partially exposed outside the locking sleeve 410.

[0074] The twisting section 422 is used to perform a twisting operation, so that when the twisting section 422 is twisted, the first threaded section 421 can be twisted synchronously. The twisting section 422 can be partially inserted into the cavity 411 and connected to the first threaded section 421, and partially extended outside the locking sleeve 410; alternatively, the twisting section 422 can be completely contained within the cavity 411; alternatively, the twisting section 422 can be completely located outside the locking sleeve 410 to facilitate user operation.

[0075] Optionally, the twisting section 422 can be a cylindrical rod structure, a prismatic rod structure, a spherical structure, a truncated cone structure, a prism structure, etc.; the twisting section 422 can be coaxially arranged with the first thread section 421, so that the twisting section 422 can be operated to rotate it around the axial direction Z to achieve the synchronous axial rotation of the first thread section 421; or, the twisting section 422 can also be eccentrically connected to the first thread section 421, so that the twisting section 422 can be operated to rotate around the axial direction of the first thread section 421, and the axial rotation of the first thread section 421 can also be achieved.

[0076] The locking member 430 is used to move along the axial direction Z to achieve locking or unlocking under the rotation operation of the knob 420; wherein, the locking member 430 includes a connecting section 432 formed along the axial direction Z and a second threaded section 431.

[0077] The second threaded segment 431 is configured to threadably engage with the first threaded segment 421. Alternatively, the second threaded segment 431 may be a cylindrical structure with external threads, with the first threaded segment 421 correspondingly being a cylindrical structure with a threaded hole. Alternatively, the second threaded segment 431 may be a cylindrical structure with a threaded hole, with the first threaded segment 421 correspondingly being a cylindrical structure with external threads. It is understood that the second threaded segment 431 can be completely contained within the cavity 411 to facilitate threaded connection with the first threaded segment 421. Alternatively, the second threaded segment 431 may be partially exposed from the locking sleeve 410.

[0078] The second thread segment 431 is limitedly arranged in the cavity 411 and can move along the axial direction Z. Optionally, a limiting structure (such as a limiting protrusion, a limiting column, etc.) can be provided on the part of the connecting segment 432 located in the cavity 411, and a limiting slot hole can be opened on the locking sleeve 410 (such as a limiting slot opened on the inner wall surface of the locking sleeve 410, or a limiting through hole opened on the locking sleeve 410) to limit the rotation of the limiting structure through the limiting slot hole; the limiting structure is correspondingly inserted into the limiting slot hole, and when the first thread segment 421 rotates, the rotation of the second thread segment 431 is restricted, so that the second thread segment 431 can only move along the axial direction Z.

[0079] The connecting section 432 is used to specifically perform the locking operation on the lock base. The connecting section 432 can extend into the cavity 411 and be fixedly connected to the second threaded section 431. The connecting section 432 also extends out of the cavity 411 and is used to lock with the lock base. Optionally, the connecting section 432 can include a T-shaped rod, and the head of the T-shaped rod is used to lock the lock base; or the connecting section 432 can include a connecting rod and a locking portion fixed to the connecting rod, which can apply force to the lock base to lock it.

[0080] It can be understood that the lock seat refers to the portion used to withstand the force of the connecting section 432 to achieve locking. For example, in some embodiments, when the quick-change lock assembly 400 is used to lock the battery to the vehicle, the lock sleeve 410 of the quick-change lock assembly 400 can be used to abut the battery so that the battery abuts the lock seat of the vehicle. At the same time, the connecting section 432 is inserted through the battery and the lock seat, and the knob 420 is operated to rotate relative to the locking member 430 to move the locking member 430 along the axial direction Z, thereby causing the connecting section 432 to move toward the interior of the lock sleeve 410. The end of the connecting section 432 can abut the lock seat and apply a force to the lock seat in the direction of the lock sleeve 410. Therefore, the battery and the lock seat are subjected to the force of the lock sleeve 410 and the connecting section 432 to achieve the purpose of clamping and locking.

[0081] The anti-rotation component 440 is used to lock the twisting section 422 to limit its rotation, thereby limiting the rotation of the connected first threaded section 421, so that even under the influence of vibration, the probability of the first threaded section 421 rotating is low; alternatively, the anti-rotation component 440 is used to unlock the twisting section 422, so that the twisting section 422 can be operated to allow the locking member 430 to unlock the lock seat.

[0082] Alternatively, the anti-rotation assembly 440 may be connected to the twisting section 422 and restrict the rotation of the twisting section 422 by interfering with the locking sleeve 410. For example, the anti-rotation assembly 440 may be a locking structure (such as a locking rod, a locking block, a locking plate, etc.) that is passed through the locking sleeve 410 and the twisting section 422. The rotation operation of the twisting section 422 can be continued by simply removing the locking structure. Alternatively, the anti-rotation assembly 440 may be a locking sleeve that is sleeved on the twisting section 422 and restricts relative rotation between the twisting section 422 and the twisting section 422, and an outer surface of the locking sleeve interferes with the locking sleeve 410, so that the locking sleeve cannot rotate relative to the locking sleeve 410, and the twisting section 422 cannot rotate relative to the locking sleeve 410. The rotation operation of the twisting section 422 can be continued by simply removing the locking sleeve.

[0083] The quick-change lock assembly 400 provided in the embodiment of the present application performs a twisting operation on the twisting section 422 of the twisting member 420 so that the first thread segment 421 can rotate relative to the second thread segment 431 of the locking member 430, and then the second thread segment 431 and the connecting section 432 can move along the axial direction Z to achieve locking or unlocking on the lock seat; at the same time, by providing an anti-rotation assembly 440, the anti-rotation assembly 440 can be locked to the twisting section 422 to limit the relative rotation between the first thread segment 421 and the second thread segment 431, so that even in the event of vibration, the twisting section 422 will not rotate due to the vibration, and the probability of the second thread segment 431 and the connecting section 432 moving along the axial direction is also low, and the locking state of the quick-change lock assembly 400 is more stable.

[0084] Please refer to Figures 3, 4, 6 and 7. In some embodiments, the anti-rotation assembly 440 includes a first anti-rotation structure 441, which is arranged on the torsion section 422 and is used to limit the relative rotation with the torsion section 422; a first locking portion 4411 is formed on the outer peripheral side surface of the first anti-rotation structure 441, and a second locking portion (not shown in the figure) is formed on the inner wall surface of the locking sleeve 410. The first locking portion 4411 and the second locking portion are engaged with each other in the circumferential direction, and the first anti-rotation structure 441 can move along the axial direction Z to separate the first locking portion 4411 from the second locking portion.

[0085] The first anti-rotation structure 441 is used to limit the relative rotation with the torsion section 422, and the first anti-rotation structure 441 can move along the axial direction Z; optionally, the first anti-rotation structure 441 includes but is not limited to a sleeve structure, a circular ring structure, an arc segment structure, etc., and the first anti-rotation structure 441 can only move along the axial direction Z and cannot rotate relative to it; for example, the inner wall surface of the first anti-rotation structure 441 can be provided with a locking structure, and the surface of the torsion section 422 can be provided with a corresponding locking structure, and the locking structure and the locking structure are engaged in the circumferential direction to achieve rotation limitation. At the same time, the locking structure and the locking structure do not affect the movement of the first anti-rotation structure 441 along the axial direction Z.

[0086] The first locking portion 4411 is formed on the outer peripheral side surface of the first anti-rotation structure 441, and the first locking portion 4411 is used to engage with the second locking portion on the inner wall surface of the locking sleeve 410 in the circumferential direction; thereby, the first anti-rotation structure 441 is restricted from rotating, and the rotation of the torsion section 422 is also restricted.

[0087] Optionally, the first locking portion 4411 may be, but is not limited to, a gear structure, a convex surface, a bump structure, etc. protruding from the outer peripheral side surface of the first anti-rotation structure 441; for example, the first anti-rotation structure 441 may be a gear structure, a prismatic structure, etc., and the outer teeth of the gear structure and the peripheral side surface of the prismatic structure are the first locking portion 4411 of the first anti-rotation structure 441.

[0088] The second locking portion is formed on the inner wall surface of the lock sleeve 410, and is used to engage with the first locking portion 4411 of the first anti-rotation structure 441 in the circumferential direction, so that the first anti-rotation structure 441 cannot rotate relative to the lock sleeve 410 in the engaged state.

[0089] Optionally, the second locking portion may be, but is not limited to, a gear structure, a convex surface, a bump structure, etc. protruding from the inner wall of the locking sleeve 410; for example, the inner wall of the locking sleeve 410 may form an internal gear structure, or the cross-section of the inner wall of the locking sleeve 410 may be a polygonal structure, etc.

[0090] The first anti-rotation structure 441 can move along the axial direction Z so that the first locking portion 4411 and the second locking portion form an overlapping portion in the axial direction Z. At this time, the first locking portion 4411 and the second locking portion are engaged, and the first anti-rotation structure 441 cannot rotate around the axial direction of the torsion section 422.

[0091] In this arrangement, the first locking portion 4411 formed on the outer peripheral side surface of the first anti-rotation structure 441 is engaged with the second locking portion formed on the inner wall surface of the locking sleeve 410 in the circumferential direction, and the first anti-rotation structure 441 cannot rotate axially around the twisting section 422 relative to the locking sleeve 410. Since the first anti-rotation structure 441 and the twisting section 422 are also restricted from relative rotation, the twisting section 422 is locked and cannot rotate around the axis when the first locking portion 4411 and the second locking portion are engaged; and the first anti-rotation structure 441 can move along the axial direction Z to separate the first locking portion 4411 from the second locking portion, so that the twisting section 422 can continue to be operated to cause the first threaded section 421 and the second threaded section 431 to rotate relative to each other, thereby enabling the connecting section 432 to move along the axial direction Z and achieve the purpose of locking or unlocking.

[0092] Please refer to Figures 3, 4, 6 and 7. In some embodiments, the anti-rotation assembly 440 includes a first anti-rotation structure 441 and a second anti-rotation structure 442. The first anti-rotation structure 441 is arranged on the torsion section 422 and is used to limit the relative rotation with the torsion section 422. The second anti-rotation structure 442 is connected to the locking sleeve 410; a first locking portion 4411 is formed on the outer peripheral side surface of the first anti-rotation structure 441, and a through hole 4421 is opened on the second anti-rotation structure 442 for the torsion section 422 to pass through, and a third locking portion 4422 is formed on the inner wall of the through hole 4421; the first locking portion 4411 and the third locking portion 4422 are engaged with each other in the circumferential direction, and the first anti-rotation structure 441 can move along the axial direction Z to separate the third locking portion 4422 from the first locking portion 4411.

[0093] The first anti-rotation structure 441 in this embodiment is completely identical to the first anti-rotation structure 441 in the above embodiment, and thus the first anti-rotation structure 441 will not be described in detail in this embodiment.

[0094] The second anti-rotation structure 442 is connected to the locking sleeve 410; optionally, the second anti-rotation structure 442 can be fixed to the end of the locking sleeve 410 on the side of the torsion section 422 by fastener connection, welding, clamping, etc.; or, the second anti-rotation structure 442 can also be fixed in the cavity 411 of the locking sleeve 410 by fastener connection, welding, clamping, etc.

[0095] The second anti-rotation structure 442 includes but is not limited to a sleeve structure, a circular ring structure, an arc segment structure, etc.

[0096] The third locking portion 4422 is formed on the inner wall surface of the second anti-rotation structure 442. The third locking portion 4422 is used to engage with the first locking portion 4411 of the first anti-rotation structure 441 in the circumferential direction, so that the first anti-rotation structure 441 cannot rotate relative to the second anti-rotation structure 442 in the engaged state, that is, it cannot rotate relative to the locking sleeve 410.

[0097] Optionally, the third locking portion 4422 can be, but is not limited to, a gear structure, a convex surface, a bump structure, etc., which is protruded from the inner wall surface of the second anti-rotation structure 442; for example, the inner wall surface of the second anti-rotation structure 442 can form a gear structure, or the inner wall and cross-section of the second anti-rotation structure 442 can be a polygonal structure, etc.

[0098] The first anti-rotation structure 441 can move along the axial direction Z so that the first locking portion 4411 and the third locking portion 4422 form an overlapping portion in the axial direction Z. At this time, the first locking portion 4411 and the third locking portion 4422 are engaged, and the first anti-rotation structure 441 cannot rotate around the axial direction of the torsion section 422, so that the torsion section 422 cannot rotate either.

[0099] In this arrangement, the first locking portion 4411 formed on the outer peripheral side surface of the first anti-rotation structure 441 is engaged with the third locking portion 4422 formed on the inner wall surface of the second anti-rotation structure 442 in the circumferential direction, and the first anti-rotation structure 441 cannot rotate axially relative to the second anti-rotation structure 442. Since the first anti-rotation structure 441 and the torsion section 422 are also restricted from relative rotation, the torsion section 422 is locked and cannot rotate around the axis when the first locking portion 4411 and the third locking portion 4422 are engaged; and the first anti-rotation structure 441 can move along the axial direction Z to separate the first locking portion 4411 from the third locking portion 4422, so that the torsion section 422 can continue to be operated to cause the first threaded segment 421 and the second threaded segment 431 to rotate relative to each other, thereby enabling the connecting segment 432 to move along the axial direction Z and achieve the purpose of locking or unlocking.

[0100] Please refer to Figures 4, 6 to 8. In some embodiments, a protrusion 4423 is further formed on the inner wall of the through hole 4421. The protrusion 4423 is arranged on the side of the third locking portion 4422 away from the first thread segment 421. The protrusion 4423 is used to limit the movement of the first locking portion 4411 along the axial direction Z.

[0101] The protrusion 4423 is used to limit the movement of the first locking portion 4411 along the axial direction Z, that is, to limit the movement of the first anti-rotation structure 441 along the axial direction Z.

[0102] Optionally, the protrusion 4423 may be a convex block structure, an arc segment structure, a convex ring structure, etc., which is arranged on a side of the third locking portion 4422 away from the first thread segment 421 .

[0103] The protrusion 4423 is arranged on the side of the third locking portion 4422 away from the first thread segment 421. Thus, when the first anti-rotation structure 441 moves along the axial direction Z and toward the outside of the locking sleeve 410 away from the side of the first thread segment 421, the first anti-rotation structure 441 and the first locking portion 4411 move to abut against the protrusion 4423, so that the protrusion 4423 can limit the first anti-rotation structure 441 from continuing to move out of the locking sleeve 410, which can effectively reduce the probability of excessive movement of the first anti-rotation structure 441. At the same time, when the first anti-rotation structure 441 abuts against the protrusion 4423, the first locking portion 4411 can maintain a state of being engaged with the third locking portion 4422; thus, when the locking sleeve 410 is placed downward in the direction of gravity with one side facing the torsion section 422, the first anti-rotation structure 441 can maintain a state of being engaged with the protrusion 4423 according to the action of gravity, so that the first locking portion 4411 can maintain a state of being engaged with the third locking portion 4422 and form a lock.

[0104] With this arrangement, the protrusion 4423 can be used to limit the movement of the first locking portion 4411 along the axial direction Z, so that the first anti-rotation structure 441 is limited to move between the first thread segment 421 and the protrusion 4423, reducing the probability of falling off due to excessive movement.

[0105] 4 and 6 , in some embodiments, the quick-change lock assembly 400 further includes an elastic return member 450 , and opposite ends of the elastic return member 450 respectively abut against the first threaded segment 421 and the first anti-rotation structure 441 .

[0106] The elastic return member 450 is used to achieve elastic return; optionally, the elastic return member 450 includes, but is not limited to, a spring, an elastic block, or other elastic structural member. For example, in some specific embodiments, the elastic return member 450 can be a spring, and the first threaded segment 421 is a cylindrical structure with internal threads. Thus, one end of the spring abuts against the end of the cylindrical structure of the first threaded segment 421, and the other end of the spring abuts against the end of the first anti-rotation structure 441.

[0107] In this manner, when the first anti-rotation structure 441 has a tendency to move toward the first threaded segment 421 and separate from the second anti-rotation structure 442 due to vibration or other conditions, the elastic return member 450 can apply a force to the first anti-rotation structure 441 to reduce the probability of accidental separation of the first anti-rotation structure 441 and the second anti-rotation structure 442, maintain the engaged state of the first locking portion 4411 and the third locking portion 4422, and thereby improve the stability of the quick-change lock assembly 400.

[0108] 6 to 8 , in some embodiments, a boss portion 4412 is formed on one side of the first anti-rotation structure 441 in the axial direction Z. The boss portion 4423 is an annular structure. The boss portion 4412 passes through the boss portion 4423 and extends out of the locking sleeve 410 .

[0109] In this arrangement, by passing the boss portion 4412 through the annular protrusion 4423 and extending it to the outside of the lock sleeve 410, when an unlocking operation is required, the boss portion 4412 extending to the outside can be operated more conveniently, and the boss portion 4412 is lifted into the lock sleeve 410 to move the first anti-rotation structure 441 in the direction of the first threaded segment 421, thereby separating the first locking portion 4411 of the first anti-rotation structure 441 and the third locking portion 4422 of the second anti-rotation structure 442 to achieve the purpose of unlocking.

[0110] Please refer to Figures 4 to 7. In some embodiments, the second anti-rotation structure 442 is fixed to one end of the locking sleeve 410 located at the torsion section 422. When the first locking portion 4411 and the third locking portion 4422 are in the locked state, the boss portion 4412 extends out of the second anti-rotation structure 442 and forms an unlocking section 44121. In the axial direction Z, the height X of the unlocking section 44121 is greater than or equal to the height Y of the first locking portion 4411 and the third locking portion 4422 overlapping in the locked state.

[0111] It can be understood that the unlocking section 44121 refers to a section of the boss portion 4412. When the first locking portion 4411 and the third locking portion 4422 are locked, the portion of the boss portion 4412 that passes through the raised portion 4423 and extends outside the second anti-rotation structure 442 is the unlocking section 44121.

[0112] In this way, the height X of the unlocking section 44121 is set to be greater than or equal to the height Y of the first locking portion 4411 and the third locking portion 4422 overlapping in the locked state. Therefore, when unlocking the first locking portion 4411 and the third locking portion 4422, it is only necessary to push the unlocking section 44121 toward the second anti-rotation structure 442 outside the second anti-rotation structure 442, and make the end of the unlocking section 44121 be pushed to be flush with the end of the second anti-rotation structure 442, so as to achieve the separation and unlocking of the first locking portion 4411 and the third locking portion 4422 without pushing the unlocking section 44121 into the second anti-rotation structure 442, thereby effectively improving the convenience of the unlocking operation.

[0113] 3 and 4 , in some embodiments, the boss portion 4412 and the raised portion 4423 are slidably fitted together.

[0114] In this way, by setting the boss portion 4412 and the raised portion 4423 to be in sliding fit, during the process of pushing and unlocking the unlocking section 44121 of the first anti-rotation structure 441, the boss portion 4412 can slide relative to the inner wall surface of the raised portion 4423, thereby making the pushing operation of the unlocking section 44121 easier.

[0115] Please refer to Figures 3, 6 to 8. In some embodiments, the first locking portion 4411 and the third locking portion 4422 are both gear structures; the gear of the first locking portion 4411 forms a chamfer at the outer edge toward the third locking portion 4422 (not shown in the figure), and / or the gear of the third locking portion 4422 forms a chamfer at the outer edge toward the first locking portion 4411 (not shown in the figure).

[0116] The gear of the first locking part 4411 forms a guide angle at the outer edge toward the third locking part 4422, so that when the first locking part 4411 and the third locking part 4422 are separated, the first locking part 4411 needs to be moved to re-engage with the third locking part 4422. The guide angle formed on the first locking part 4411 can guide the insertion of the third locking part 4422, thereby improving the success rate of the engagement between the first locking part 4411 and the third locking part 4422.

[0117] It can be understood that a chamfer can be formed on the gear of the third locking portion 4422 at the outer edge facing the first locking portion 4411; or, a chamfer can be formed on the gear of the first locking portion 4411 at the outer edge facing the third locking portion 4422, and at the same time, a chamfer can be formed on the gear of the third locking portion 4422 at the outer edge facing the first locking portion 4411, so as to improve the success rate of the engagement between the first locking portion 4411 and the third locking portion 4422.

[0118] In this way, by setting a chamfer on the gear of the first locking portion 4411 and / or setting a chamfer on the gear of the third locking portion 4422, when the first locking portion 4411 and the third locking portion 4422 are separated, the process of the first locking portion 4411 re-engaging with the third locking portion 4422 is easier, thereby making the locking and unlocking operations of the quick-change lock assembly 400 smoother.

[0119] Please refer to Figures 6 to 8. In some embodiments, a fourth locking portion 4221 is formed on the outer peripheral side surface of the torsion section 422, the first anti-rotation structure 441 is provided with a mounting hole 4413, and a fifth locking portion 4414 is formed on the inner wall surface of the mounting hole 4413. The fourth locking portion 4221 and the fifth locking portion 4414 are engaged with each other in the circumferential direction, and the fourth locking portion 4221 and the fifth locking portion 4414 are slidably matched in the axial direction Z.

[0120] The fourth locking portion 4221 is used to engage with the fifth locking portion 4414 in the circumferential direction, and the fourth locking portion 4221 and the fifth locking portion 4414 slide together in the axial direction Z; optionally, the fourth locking portion 4221 can be but is not limited to a gear structure, a convex surface, or a bump structure protruding from the outer peripheral side surface of the torsion section 422. For example, the torsion section 422 can be a gear structure, a prismatic structure, etc., and the outer teeth of the gear structure and the peripheral side surface of the prismatic structure are the fourth locking portion 4221 of the torsion section 422.

[0121] The fifth locking portion 4414 can be, but is not limited to, a gear structure, a convex surface, a bump structure, etc. protruding from the inner wall of the mounting hole 4413; for example, the inner wall of the mounting hole 4413 can form a gear structure, or the cross-section of the inner wall of the mounting hole 4413 can be a polygonal structure, etc.

[0122] For example, in some specific embodiments, the twisting section 422 can be a hexagonal prism structure, and the twisting section 422 extends out of the locking sleeve 410, and the cross-section of the inner wall of the mounting hole 4413 can be a regular hexagonal structure. Thus, the twisting section 422 can be passed through the mounting hole 4413 of the first anti-rotation structure 441 and extend out of the locking sleeve 410, and the circumferential side surface of the first anti-rotation structure 441 is engaged with the inner wall of the mounting hole 4413 in the circumferential direction, and the first anti-rotation structure 441 can only rotate synchronously with the twisting section 422 and cannot rotate relative to the twisting section 422. When unlocking is required, it is only necessary to use an external tool with a hexagonal hole to lift the first anti-rotation structure 441 outside the locking sleeve 410 until the first locking portion 4411 and the third locking portion 4422 are separated, and the twisting section 422 is inserted into the hexagonal hole. Then, the external tool is rotated to drive the twisting section 422 to rotate, so that the first threaded section 421 drives the second threaded section 431 and the connecting section 432 to move along the axial direction Z and achieve unlocking.

[0123] Below, the quick-change lock assembly 400 of the present application will be described in conjunction with specific implementations.

[0124] Please refer to Figures 1 to 8. In this embodiment, the quick-change lock assembly 400 includes a lock sleeve 410, a knob 420, a lock component 430 and an anti-rotation assembly 440; the lock sleeve 410 is a columnar structure with a hollow cavity 411, and the cavity has an axial direction Z. The knob 420 includes a first threaded segment 421 and a twisting segment 422 formed along the axial direction Z. The first threaded segment 421 can be a columnar structure with a threaded hole, and the twisting segment 422 can be a hexagonal prism structure. The twisting segment 422 can drive the first threaded segment 421 to rotate synchronously around the axis. The first threaded segment 421 is accommodated in the cavity 411, and the twisting segment 422 partially extends out of the cavity 411.

[0125] The locking component 430 includes a second threaded segment 431 and a connecting segment 432 formed along the axial direction Z. The second threaded segment 431 can be a rod-shaped structure with an external thread, and the second threaded segment 431 can be screwed into the threaded hole of the first threaded segment 421. The second threaded segment 431 is accommodated in the cavity 411, and the connecting segment 432 is partially connected to the second threaded segment 431. The other part of the connecting segment 432 extends out of the cavity 411 and is used to lock to the lock seat; for example, the locking component 430 can be a T-shaped screw structure. Among them, the second thread segment 431 is limitedly set in the cavity 411 and can move along the axial direction Z, that is, the axial rotation movement of the second thread segment 431 is limited; in this embodiment, the specific way of limiting the second thread segment 431 in the cavity 411 can be that a guide pin is set on the part of the second thread segment 431 or the connecting segment 432 located in the cavity 411, and at the same time, a guide hole is opened on the lock sleeve 410, and the guide pin is inserted into the guide hole. Therefore, when the twisting section 422 drives the first thread segment 421 to rotate, the rotation of the second thread segment 431 is limited, and the second thread segment 431 and the connecting segment 432 move along the axial direction Z, so that the locking component 430 with a T-shaped screw structure can use the head of the T-shaped screw structure and the end of the lock sleeve 410 to clamp and fix the battery and the vehicle lock seat.

[0126] The anti-rotation mechanism includes a first anti-rotation structure 441 and a second anti-rotation structure 442; a mounting hole 4413 is provided on the first anti-rotation structure 441, and the cross-section of the inner wall of the mounting hole 4413 is a regular hexagon, and a first locking portion 4411 is formed on the outer peripheral side surface of the first anti-rotation structure 441. The first locking portion 4411 can specifically be a gear structure formed on the outer peripheral side surface of the first anti-rotation structure 441; in this way, the torsion section 422 can be passed through the mounting hole 4413 of the first anti-rotation structure 441, and the torsion section 422 and the second anti-rotation structure 442 cannot form relative rotation in the circumferential direction.

[0127] The second anti-rotation structure 442 is fixed to the end of the locking sleeve 410 on the side of the twisting section 422 by fasteners. A through hole 4421 is provided on the second anti-rotation structure 442 to allow the twisting section 422 to extend out of the locking sleeve 410; a third locking portion 4422 and a protruding portion 4423 in a ring-shaped structure are formed on the inner wall of the through hole 4421. The third locking portion 4422 can specifically be a gear structure meshing with the first locking portion 4411, and the protruding portion 4423 is formed on the side of the third locking portion 4422 facing away from the first threaded section 421.

[0128] At the same time, a boss portion 4412 is also formed on one side of the first anti-rotation structure 441 in the axial direction Z. The boss portion 4412 can be passed through the raised portion 4423 and extend to the outside of the locking sleeve 410 and the second anti-rotation structure 442. In the locked state of the first locking portion 4411 and the third locking portion 4422, the boss portion 4412 extends to the outside of the second anti-rotation structure 442 and forms an unlocking section 44121. In the axial direction Z, the height X of the unlocking section 44121 is greater than or equal to the height Y of the first locking portion 4411 and the third locking portion 4422 overlapping in the locked state.

[0129] An elastic return member 450, such as a spring, is also provided in the cavity 411 of the locking sleeve 410. The spring can be sleeved on the torsion section 422, and one end of the spring is against the first threaded section 421, and the other end of the spring is against the first anti-rotation structure 441 and applies a force to the first anti-rotation structure 441 to reduce the probability of the first anti-rotation structure 441 jumping in the axial direction Z and accidentally unlocking with the second anti-rotation structure 442 under vibration.

[0130] When operating the quick-change lock assembly 400, an external tool with a hexagonal hole can be used to align the external tool with the twisting section 422 so that the twisting section 422 is inserted into the hexagonal hole, and then the external tool continues to move toward the lock sleeve 410 along the axial direction Z so that the external tool can push the boss portion 4412; but when the external tool moves to the end face that is against the second anti-rotation structure 442, the boss portion 4412 is completely pushed into the hole of the protruding portion 4423. At this time, the first anti-rotation structure 441 and the second anti-rotation structure 442 are unlocked, and then the external tool can be rotated to drive the twisting section 422 to rotate, so that the first threaded section 421 can rotate relative to the second threaded section 431, and then the second threaded section 431 and the connecting section 432 can move along the axial direction Z, so that the connecting section 432 changes its relative position with the lock seat, thereby achieving the purpose of locking or unlocking.

[0131] Please refer to Figures 1 to 3. In the second aspect, an embodiment of the present application provides a battery 100, including a box body 10 and a quick-change lock assembly 400 as described above. The quick-change lock assembly 400 is provided on the box body 10 and is used to install the box body 10 on a vehicle 1000.

[0132] The battery 100 provided in the embodiment of the present application includes the aforementioned quick-change lock assembly 400 . Based on the more stable locking state of the aforementioned quick-change lock assembly 400 , the stability of the battery 100 during fixed assembly is further improved.

[0133] Referring to Figures 1 to 3, in a third aspect, an embodiment of the present application provides a vehicle 1000, including a vehicle body, a battery 100, and the quick-change lock assembly 400 as described above, wherein the quick-change lock assembly 400 is used to lock the battery 100 to the vehicle body.

[0134] The vehicle 1000 provided in the embodiment of the present application includes the quick-change lock assembly 400 described above. Based on the fact that the locking state of the quick-change lock assembly 400 described above is more stable, the stability of the battery being fixed to the vehicle body via the quick-change lock assembly 400 is improved.

[0135] The above are only preferred embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent replacements, and improvements made within the spirit and principles of the present application should be included in the scope of protection of the present application.

Claims

1. A quick-change lock assembly for locking to a lock seat, characterized by: include The locking sleeve has a hollow cavity formed therein, and the cavity has an axial direction; a twisting member, comprising a first thread segment and a twisting segment formed along the axial direction, wherein the first thread segment is disposed in the cavity and is configured to rotate around an axis; The locking member includes a connecting section and a second threaded section formed along the axial direction, the second threaded section being limitedly disposed in the cavity and threadably engaged with the first threaded section, the second threaded section being configured to be movable along the axial direction; the connecting section extending out of the cavity and being configured to be locked with the lock seat; as well as An anti-rotation assembly, the anti-rotation assembly is used to lock to the twisting section to limit the rotation of the first threaded section, so that the second threaded section and the connecting section remain locked to the lock seat; or, the anti-rotation assembly is used to release the lock of the twisting section, so that the first threaded section can rotate relative to the second threaded section, and the second threaded section and the connecting section can move axially out of the cavity to release the lock of the lock seat.

2. The quick-change lock assembly according to claim 1, characterized in that: The anti-rotation assembly includes a first anti-rotation structure, which is arranged on the torsion section and is used to limit relative rotation with the torsion section; a first locking portion is formed on the outer peripheral side surface of the first anti-rotation structure, and a second locking portion is formed on the inner wall surface of the locking sleeve, the first locking portion and the second locking portion are engaged with each other in the circumferential direction, and the first anti-rotation structure can move along the axial direction to separate the first locking portion from the second locking portion.

3. The quick-change lock assembly according to claim 1, characterized in that: The anti-rotation assembly includes a first anti-rotation structure and a second anti-rotation structure, the first anti-rotation structure is arranged on the torsion section and is used to limit the relative rotation with the torsion section, and the second anti-rotation structure is connected to the locking sleeve; a first locking portion is formed on the outer peripheral side surface of the first anti-rotation structure, and a through hole for the torsion section to pass through is opened on the second anti-rotation structure, and a third locking portion is formed on the inner wall of the through hole; the first locking portion and the third locking portion are engaged with each other in the circumferential direction, and the first anti-rotation structure can move along the axial direction to separate the third locking portion from the first locking portion.

4. The quick-change lock assembly according to claim 3, characterized in that: A protrusion is further formed on the inner wall of the through hole. The protrusion is provided on a side of the third stopping portion away from the first threaded section. The protrusion is used to limit movement of the first stopping portion along the axial direction.

5. The quick-change lock assembly according to claim 4, characterized in that: It also includes an elastic reset member, wherein opposite ends of the elastic reset member respectively abut against the first thread segment and the first anti-rotation structure.

6. The quick-change lock assembly according to claim 5, characterized in that: A boss portion is formed on one side of the first anti-rotation structure in the axial direction. The boss portion is an annular structure. The boss portion passes through the boss portion and extends out of the lock sleeve.

7. The quick-change lock assembly according to claim 6, characterized in that: The second anti-rotation structure is fixed to one end of the locking sleeve located at the torsion section. When the first locking portion and the third locking portion are in the locked state, the boss portion extends out of the second anti-rotation structure and forms an unlocking section. In the axial direction, the height of the unlocking section is greater than or equal to the height of the first locking portion and the third locking portion overlapping in the locked state.

8. The quick-change lock assembly according to claim 6, characterized in that: The boss portion and the raised portion are slidably matched.

9. The quick-change lock assembly according to claim 3, characterized in that: The first locking portion and the third locking portion are both gear structures; the gear of the first locking portion forms a chamfer at an outer edge facing the third locking portion, and / or the gear of the third locking portion forms a chamfer at an outer edge facing the first locking portion.

10. The quick-change lock assembly according to any one of claims 2 to 9, characterized in that: A fourth locking portion is formed on the outer circumferential side surface of the torsion section, a mounting hole is provided in the first anti-rotation structure, a fifth locking portion is formed on the inner wall surface of the mounting hole, the fourth locking portion and the fifth locking portion are engaged with each other in the circumferential direction, and the fourth locking portion and the fifth locking portion are slidably matched in the axial direction.

11. A battery, characterized in that: The invention comprises a box body and a quick-change lock assembly according to any one of claims 1 to 10, wherein the quick-change lock assembly is arranged on the box body and is used for installing the box body on a vehicle.

12. A vehicle, characterized in that: The vehicle comprises a vehicle body, a battery, and a quick-change lock assembly according to any one of claims 1 to 10, wherein the quick-change lock assembly is used to lock the battery to the vehicle body.

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