Hoisting tool

Abstract

The invention discloses a hoisting tool, relates to the technical field of hoisting, and aims to solve the problem of how to improve the stability when the hoisting tool grabs a front axle of a vehicle. The hoisting tool comprises a supporting piece, a clamping assembly, a first locking structure and a second locking structure, the clamping assembly comprises an active clamping structure, a passive clamping structure and a transmission assembly, the active clamping structure and the passive clamping structure are both rotationally connected to the supporting piece, and the transmission assembly is in transmission connection between the active clamping structure and the passive clamping structure; the driving clamping structure rotates and can drive the driven clamping structure to rotate reversely through the transmission assembly, so that the clamping assembly is switched between the clamping state and the non-clamping state. The first locking structure is connected to the supporting piece, the second locking structure is connected to the active clamping structure, when the clamping assembly is in a clamping state, the first locking structure and the second locking structure are matched for locking, and when the clamping assembly is in a non-clamping state, the first locking structure and the second locking structure are unlocked.

Description

Technical Field

[0001] This application relates to the field of hoisting technology, and more particularly to a hoisting tool. Background Technology

[0002] Lifting tools, as a type of workpiece gripping equipment, are used in conjunction with handling equipment (such as overhead cranes, hoists, robots, etc.) to transfer the front axle of a vehicle between different workstations on an assembly line, so as to facilitate the subsequent assembly of the front axle with other components.

[0003] In existing technologies, lifting tools typically rely on a tie-rod spring structure to grip the front axle of a vehicle. However, the stability of lifting tools with a tie-rod spring structure when gripping the front axle is poor, which may cause the front axle to fall during the gripping process, affecting the assembly line operation of the vehicle's front axle. Summary of the Invention

[0004] The purpose of this application is to provide a lifting tool that aims to solve the problem of how to improve the stability of the lifting tool when grabbing the front axle of a vehicle.

[0005] To achieve the above objectives, this application adopts the following technical solution: This application provides a lifting tool, including a support member, a clamping assembly, a first locking structure, and a second locking structure. The clamping assembly includes an active clamping structure, a passive clamping structure, and a transmission assembly. Both the active and passive clamping structures are rotatably connected to the support member. The transmission assembly is drively connected between the active and passive clamping structures. Rotation of the active clamping structure can drive the passive clamping structure to rotate in the opposite direction via the transmission assembly, thereby switching the clamping assembly between a clamping state and a non-clamping state. The first locking structure is connected to the support member, and the second locking structure is connected to the active clamping structure. When the clamping assembly is in the clamping state, the first and second locking structures cooperate to lock; when the clamping assembly is in the non-clamping state, the first and second locking structures are released.

[0006] The lifting tool provided in this application embodiment connects the active clamping structure and the passive clamping structure via a transmission component. When the active clamping structure rotates, the transmission component can drive the passive clamping structure to rotate in the opposite direction, so that the active clamping structure and the passive clamping structure can move in opposite directions simultaneously. This allows the clamping component to switch between clamping and non-clamping states, enabling the active and passive clamping structures to grip the front axle of the vehicle.

[0007] Based on this, the first locking structure and the second locking structure work together to lock the state of the active clamping structure and the passive clamping structure after they have gripped the front axle of the vehicle, i.e., the clamping state, so as to improve the stability of the active clamping structure and the passive clamping structure when gripping the front axle of the vehicle and prevent the front axle from falling off during the gripping process.

[0008] In some embodiments, the first locking structure includes a first fixing member and a plurality of first locking teeth. The first fixing member has an arcuate surface, and the plurality of first locking teeth are circumferentially spaced on the arcuate surface. The second locking structure includes a second fixing member and a plurality of second locking teeth. The second fixing member is rotatably connected to the active clamping structure, and the plurality of second locking teeth are connected to the second fixing part. When the clamping assembly is in the clamping state, the plurality of second locking teeth are circumferentially spaced on the arcuate surface and engage with the plurality of first locking teeth.

[0009] In some embodiments, the lifting tool further includes an elastic element connected between the second fixing element and the active clamping structure for applying a spring force toward the first locking tooth to the second locking tooth.

[0010] In some embodiments, the active clamping structure includes a clamping member, a connecting member, and a handle. The clamping member is rotatably connected to the support member and is used to cooperate with the passive clamping structure to clamp the lifted object. The connecting member is connected between the handle and the clamping member, and the handle is used to drive the clamping member to rotate. The second fixing member includes a rotating rod and a gripping rod. The rotating rod is rotatably connected to the connecting member, and the gripping rod is connected to the rotating rod and arranged circumferentially with the handle along the rotation axis of the clamping member.

[0011] In some embodiments, the connector includes a first link, a second link, and a third link. The first link is connected to the clamping member, and the second and third links are both connected to the first link and are axially arranged along the rotation axis of the clamping member. The handle is connected between the second and third links.

[0012] In some embodiments, the second fixing member further includes a stabilizing rod, which and the rotating rod are axially arranged along the rotation axis of the clamping member. The stabilizing rod is rotatably connected to the connecting member, and the gripping rod is connected between the stabilizing rod and the rotating rod.

[0013] In some embodiments, the transmission assembly includes a first rotating member and a second rotating member. The first rotating member is connected to an active clamping structure, and the second rotating member is connected to a passive clamping structure. The first rotating member and the second rotating member are connected in a transmission manner so that the rotation of the first rotating member drives the second rotating member to rotate in the opposite direction.

[0014] In some embodiments, the first rotating member includes a first gear, the second rotating member includes a second gear, and the first gear and the second gear mesh.

[0015] In some embodiments, the active clamping structure includes clamping members, which include a first clamping member, a second clamping member, and a first rotating shaft. The first rotating shaft is rotatably connected to a support member. Both the first clamping member and the second clamping member are connected to the first rotating shaft and arranged along the axial direction of the first rotating shaft. The first fixing member is provided with a through hole, and the first rotating shaft passes through the through hole, with the axis of the arc surface coinciding with the axis of the first rotating shaft.

[0016] In some embodiments, the first clamping member includes a fourth link and a support portion. One end of the fourth link is connected to a first rotating shaft, and the support portion is connected to the other end of the fourth link. The support portion includes a support surface, and the angle between the support surface and the extension direction of the fourth link is greater than 0° and less than 90°.

[0017] In some embodiments, the passive clamping structure includes a third clamping member, a fourth clamping member, and a second rotating shaft. The second rotating shaft is rotatably connected to a support member. The third clamping member and the fourth clamping member are both connected to the second rotating shaft, and the third clamping member and the fourth clamping member are spaced apart along the axial direction of the second rotating shaft. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This application provides a schematic diagram of the structure of a hoisting tool according to some embodiments; Figure 2 for Figure 1 The front view of the hoisting tool shown; Figure 3 for Figure 1 A schematic diagram of the lifting tool shown from another angle; Figure 4 for Figure 1 Top view of the hoisting tool shown; Figure 5 for Figure 1 Left view of the hoisting tool shown.

[0020] Explanation of reference numerals in the attached figures: 10. Lifting tools; 1. Support component; 11. First support component; 12. Second support component; 2. Clamping assembly; 21. Active clamping structure; 211. Clamping component; 2111. First clamping component; 2111A. Fourth link; 2111B. Support part; 2112. Second clamping component; 2113. First rotating shaft; 212. Connecting component; 2121. First link; 2122. Second link; 2123. Third link; 213. Handle; 22. Passive clamping structure; 221. Third clamping component; 222. Fourth clamping component; 23. Transmission assembly; 231. First rotating component; 232. Second rotating component; 3. First locking structure; 31. First fixing component; 32. First locking tooth; 4. Second locking structure; 41. Second fixing component; 411. Rotating rod; 412. Grip rod; 413. Stabilizing rod. Detailed Implementation

[0021] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0022] In the description of this application, it should be understood that the terms "upper," "lower," "left," "right," "front," "rear," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or relative positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and for simplification, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. Unless otherwise specified, the above-mentioned orientational descriptions can be flexibly set in practical applications, provided that the relative positional relationships shown in the accompanying drawings are satisfied.

[0023] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0024] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "communication" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection. They can refer to a direct connection or an indirect connection through an intermediate medium, or a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0025] In embodiments of this application, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, article, or apparatus that includes that element.

[0026] In the embodiments of this application, the terms "exemplary" or "for example" are used to indicate that something is an example, illustration, or description. Any embodiment or design that is described as "exemplary" or "for example" in the embodiments of this application should not be construed as being more preferred or advantageous than other embodiments or design. Specifically, the use of the terms "exemplary" or "for example" is intended to present the relevant concepts in a specific manner.

[0027] In the description of this specification, specific features, structures, materials, or characteristics may be combined in any suitable manner in one or more embodiments or examples.

[0028] This application provides a lifting tool 10, which is a workpiece gripping device used in conjunction with handling equipment (such as overhead cranes, hoists, robots, etc.) to transfer the front axle of a vehicle between different workstations on an assembly line, so as to facilitate the subsequent assembly of the front axle of the vehicle with other components.

[0029] For example, the lifting tool 10 for grabbing the front axle of a vehicle can be a hook-type lifting tool, an electromagnetic lifting tool, a robotic arm, a vacuum lifting tool, a hydraulic lifting tool, etc.

[0030] This application uses the lifting tool 10 for grabbing the front axle of a vehicle as an example to illustrate the hook-type lifting device.

[0031] In related technologies, lifting tools 10 typically rely on a tie-rod spring structure to grip the front axle of a vehicle. However, the stability of the lifting tool 10 with a tie-rod spring structure when gripping the front axle of a vehicle is poor, and after long-term use, the elasticity of the spring structure in the lifting tool 10 with a tie-rod spring structure is prone to deterioration, which can lead to the spring structure failing easily. This may cause the front axle of the vehicle to fall off during the gripping process, affecting the assembly line operation of the front axle of the vehicle.

[0032] In some embodiments, to improve the stability of the lifting tool 10 when gripping the front axle of a vehicle, please refer to... Figure 1 , Figure 1 The present application provides a schematic diagram of the structure of a hoisting tool 10 according to some embodiments. The hoisting tool 10 may include a support member 1, a clamping assembly 2, a first locking structure 3 and a second locking structure 4. The support member 1 is used to cooperate with handling equipment (such as a crane, a robot, etc.) to transfer the front axle of a vehicle between different workstations on the assembly line.

[0033] The clamping assembly 2 may include an active clamping structure 21, a passive clamping structure 22, and a transmission assembly 23. Both the active clamping structure 21 and the passive clamping structure 22 are rotatably connected to the support member 1, and their rotation axes are parallel. The transmission assembly 23 is drively connected between the active clamping structure 21 and the passive clamping structure 22. Rotation of the active clamping structure 21 can drive the passive clamping structure 22 to rotate in the opposite direction via the transmission assembly 23, thus switching the clamping assembly 2 between a clamping state and a non-clamping state. Reverse rotation means that when the active clamping structure 21 rotates and drives the passive clamping structure 22 to rotate via the transmission assembly 23, the rotation direction of the passive clamping structure 22 is opposite to the rotation direction of the active clamping structure 21.

[0034] The first locking structure 3 is connected to the support member 1, and the second locking structure 4 is connected to the active clamping structure 21. When the clamping assembly 2 is in the clamping state, the first locking structure 3 and the second locking structure 4 cooperate to lock. When the clamping assembly 2 is in the non-clamping state, the first locking structure 3 and the second locking structure 4 are released. Furthermore, when the clamping assembly 2 is in the clamping state, the active clamping structure 21 and the passive clamping structure 22 cooperate to clamp the front axle of the vehicle. When the clamping assembly 2 is in the non-clamping state, the active clamping structure 21 and the passive clamping structure 22 release their clamping of the front axle of the vehicle.

[0035] For example, when it is necessary to switch the clamping assembly 2 from a clamping state to a non-clamping state, firstly, the first locking structure 3 and the second locking structure 4 are unlocked to allow the active clamping structure 21 to rotate. Then, the active clamping structure 21 is rotated away from the passive clamping structure 22 so that the active clamping structure 21 and the passive clamping structure 22 move away from each other until a space for placing the vehicle's front axle is defined between the active clamping structure 21 and the passive clamping structure 22, facilitating the subsequent gripping of the vehicle's front axle by the active clamping structure 21 and the passive clamping structure 22.

[0036] When it is necessary to switch the clamping assembly 2 from a non-clamping state to a clamping state, firstly, the active clamping structure 21 is rotated towards the passive clamping structure 22, so that the active clamping structure 21 and the passive clamping structure 22 move closer to each other until one side of the vehicle's front axle contacts the active clamping structure 21 and the other side contacts the passive clamping structure 22. Then, the first locking structure 3 and the second locking structure 4 are engaged to lock, so that the active clamping structure 21 stops moving, and further so that the passive clamping structure 22 stops moving, thereby achieving stable gripping of the vehicle's front axle by the active clamping structure 21 and the passive clamping structure 22.

[0037] In this way, by connecting the transmission component 23 between the active clamping structure 21 and the passive clamping structure 22, when the active clamping structure 21 rotates, the transmission component 23 can drive the passive clamping structure 22 to rotate in the opposite direction, so that the active clamping structure 21 and the passive clamping structure 22 can move in opposite directions at the same time. This allows the clamping component 2 to switch between the clamping state and the non-clamping state, thereby enabling the active clamping structure 21 and the passive clamping structure 22 to grip the front axle of the vehicle.

[0038] Based on this, the first locking structure 3 and the second locking structure 4 can be used to lock the state of the active clamping structure 21 and the passive clamping structure 22 after they have gripped the front axle of the vehicle, thereby improving the stability of the active clamping structure 21 and the passive clamping structure 22 when gripping the front axle of the vehicle and preventing the front axle from falling off during the gripping process.

[0039] In some examples, the support member 1 may include a first support member 11 and a second support member 12, which are connected to enclose a mounting cavity. Parts of the first locking structure 3, the clamping assembly 2, and the second locking structure 4 are disposed within the mounting cavity. For example, both the first support member 11 and the second support member 12 can be block-shaped structures, plate-shaped structures, box-shaped structures, irregular structures, etc.

[0040] In some examples, the transmission component 23 can be drively connected between the active clamping structure 21 and the passive clamping structure 22, and along the direction of the rotation axis of the active clamping structure 21 and the passive clamping structure 22, the transmission component 23 can be located at one end or in the middle of the active clamping structure 21 and the passive clamping structure 22.

[0041] In some embodiments, please refer to Figure 1 and Figure 2 The first locking structure 3 may include a first fixing member 31 and a plurality of first locking teeth 32. The first fixing member 31 has an arc surface, and the plurality of first locking teeth 32 are spaced apart on the arc surface circumferentially. The second locking structure 4 may include a second fixing member 41 and a plurality of second locking teeth. The second fixing member 41 is rotatably connected to the active clamping structure 21, and the plurality of second locking teeth are connected to the second fixing part. When the clamping assembly 2 is in the clamping state, the plurality of second locking teeth are spaced apart circumferentially on the arc surface and engage with the plurality of first locking teeth 32.

[0042] In this way, by arranging multiple first locking teeth 32 circumferentially on the arc surface, the first locking structure 3 can form a half gear structure. By rotatably connecting the second fixing member 41 to the active clamping structure 21, and arranging multiple second locking teeth to the second fixing part, and arranging multiple second locking teeth circumferentially on the arc surface, the second locking structure 4 can form a half gear ring structure.

[0043] When the clamping assembly 2 is in the clamping state, multiple second locking teeth engage with multiple first locking teeth 32, that is, the half-gear structure engages with the half-gear ring structure. Since the first fixing member 31 and the first locking teeth 32 are fixed, the second fixing member 41 and the second locking teeth can be locked, thereby locking the active clamping structure 21. This locking effect of the half-gear structure engaging with the half-gear ring structure is reliable, and can lock the state of the active clamping structure 21 and the passive clamping structure 22 after they have gripped the vehicle's front axle, thereby improving the stability of the active clamping structure 21 and the passive clamping structure 22 when gripping the vehicle's front axle and preventing the front axle from falling off during the gripping process.

[0044] In some examples, both the first fastener 31 and the second fastener 41 can be block structures, plate structures, irregular structures, etc.

[0045] In some examples, the number of multiple second locking teeth and multiple first locking teeth 32 is equal and corresponds one-to-one. This can improve the meshing degree of the multiple second locking teeth and multiple first locking teeth 32. Alternatively, the number of multiple second locking teeth and multiple first locking teeth 32 may not be equal; for example, the number of second locking teeth may be less than the number of first locking teeth 32.

[0046] In some other embodiments, the first locking structure 3 can also clamp the second locking structure 4 by clamping to achieve locking of the first locking structure 3 and the second locking structure 4. This application does not make specific limitations in this regard.

[0047] In some embodiments, the lifting tool 10 may further include an elastic element connected between the second fixing member 41 and the active clamping structure 21, for applying an elastic force toward the first locking tooth 32 to the second locking tooth.

[0048] For example, when it is necessary to switch the clamping assembly 2 from a clamping state to a non-clamping state, firstly, the second fixing member 41 is rotated to separate the plurality of second locking teeth connected to the second fixing member 41 from the plurality of first locking teeth 32. During this process, the second fixing member 41 will cause the elastic member to undergo elastic deformation. At this time, the first locking structure 3 and the second locking structure 4 are released, and the active clamping structure 21 can be rotated to move the active clamping structure 21 and the passive clamping structure 22 away from each other, so that the clamping assembly 2 is in a non-clamping state.

[0049] When it is necessary to switch the clamping assembly 2 from a non-clamping state to a clamping state, firstly, the active clamping structure 21 is rotated in the direction close to the passive clamping structure 22, so that the active clamping structure 21 and the passive clamping structure 22 move closer to each other until one side of the vehicle's front axle contacts the active clamping structure 21 and the other side contacts the passive clamping structure 22. Then, the second fixing member 41 is released, the elastic member returns to its original position, and a spring force is applied to the second locking teeth toward the first locking teeth 32, so that the multiple second locking teeth tightly engage with the multiple first locking teeth 32. The first locking structure 3 and the second locking structure 4 cooperate to lock, thereby locking the state of the clamping assembly 2 after it has gripped the vehicle's front axle.

[0050] In this way, by connecting the elastic element between the second fixing member 41 and the active clamping structure 21, when the clamping assembly 2 is in the non-clamping state, the elastic element is used to apply a spring force toward the first locking tooth 32 to the second locking tooth, so that the first locking tooth 32 and the second locking tooth can reliably engage, thereby preventing the clamping assembly 2 from shaking back and forth after gripping the front axle of the vehicle and improving the stability of the clamping assembly 2 after gripping the front axle of the vehicle.

[0051] In some examples, the elastic element can be a coil spring, a rubber component, a latex component, etc.

[0052] In some embodiments, please refer to Figures 1 to 3 The active clamping structure 21 may include a clamping member 211, a connecting member 212 and a handle 213. The clamping member 211 is rotatably connected to the support member 1 and is used to cooperate with the passive clamping structure 22 to clamp the lifted part, such as the front axle of a vehicle. The connecting member 212 is connected between the handle 213 and the clamping member 211. The handle 213 is used to drive the clamping member 211 to rotate.

[0053] The second fixing member 41 may include a rotating rod 411 and a gripping rod 412. The rotating rod 411 is rotatably connected to the connecting member 212, and the gripping rod 412 is connected to the rotating rod 411 and arranged circumferentially with the handle 213 along the rotation axis of the clamping member 211.

[0054] For example, when it is necessary to switch the clamping assembly 2 from the clamping state to the non-clamping state, in the initial state, the active clamping structure 21 is in the locked state. First, the operator can hold the handle 213 and the gripping rod 412 and apply force in the direction of the handle 213 and the gripping rod 412 toward each other, pulling the gripping rod 412 toward the handle 213 of the active clamping structure 21, thereby causing the gripping rod 412 to rotate toward the handle 213, so as to drive the second fixed rod to rotate, and cause the elastic member connected between the second fixed member 41 and the active clamping structure 21 to deform, so as to separate the multiple second locking teeth connected to the second fixed member 41 from the multiple first locking teeth 32. At this time, the first locking structure 3 and the second locking structure 4 are released. Then, the operator holds the handle 213 and the gripping rod 412 and moves upward. Through the connector 212 connected to the handle 213, the clamping member 211 is moved away from the passive clamping structure 22. At the same time, the passive clamping structure 22 is moved away from the active clamping structure 21, so that the clamping assembly 2 is in a non-clamping state, which facilitates the subsequent placement of the hoisted part. During this process, since the operator always holds the handle 213 and the gripping rod 412, the first locking structure 3 and the second locking structure 4 can always be kept in contact and locked state.

[0055] When it is necessary to switch the clamping assembly 2 from a non-clamping state to a clamping state, firstly, the operator grasps the handle 213 and the gripping rod 412, disengaging the first locking structure 3 and the second locking structure 4. Then, the operator continues to grasp the handle 213 and the gripping rod 412 downwards, causing the connecting piece 212 connected to the handle 213 to move the clamping member 211 closer to the passive clamping structure 22. Simultaneously, the operator moves the passive clamping structure 22 closer to the active clamping structure 21, thus putting the clamping assembly 2 into a clamping state. Then, the operator releases the handle 213 and the gripping rod 412, releasing the deformation of the elastic member connected between the second fixing member 41 and the active clamping structure 21. The elastic member returns to its original state, applying a spring force towards the first locking tooth 32 to the second locking tooth, causing multiple second locking teeth to tightly engage with multiple first locking teeth 32. The first locking structure 3 and the second locking structure 4 cooperate to lock, achieving the locking of the clamping assembly 2 after it has gripped the front axle of the vehicle.

[0056] In this way, the operator only needs to hold the handle 213 and the gripping rod 412 and move them up or down to complete the entire process of unlocking, opening, closing and locking the clamping component 2, thereby achieving the gripping of the vehicle's front axle. This gripping method has a simple structure and is easy to operate.

[0057] In some examples, both the handle 213 and the connector 212 can be block-shaped, plate-shaped, rod-shaped, irregular, etc.

[0058] In some embodiments, please refer to Figures 1 to 4The connector 212 may include a first link 2121, a second link 2122 and a third link 2123. The first link 2121 is connected to the clamping member 211. The second link 2122 and the third link 2123 are both connected to the first link 2121 and are arranged axially along the rotation axis of the clamping member 211. The handle 213 is connected between the second link 2122 and the third link 2123.

[0059] In this way, the arrangement of the first link 2121, the second link 2122, and the third link 2123 forms a "U"-shaped frame structure, which strengthens the structural strength of the connector 212 and further enhances the structural strength between the connector 212 and the clamping member 211, and between the connector 212 and the handle 213, ensuring reliable connections between the connector 212 and the clamping member 211, and between the connector 212 and the handle 213. When the operator applies force through the handle 213, the second link 2122 and the third link 2123 are simultaneously stressed, causing the first link 2121 and the clamping member 211 to rotate smoothly, avoiding deflection or jamming that may occur when applying force at a single point, and improving the stability of the clamping member 211 during rotation.

[0060] In some other embodiments, the connector 212 may include only the first link 2121 and the second link 2122, or the connector 212 may include only the first link 2121 and the third link 2123. This also facilitates the connection between the handle 213 and the clamping member 211 and maintains the structural stability of the handle 213.

[0061] In some embodiments, the second fixing member 41 may further include a stabilizing rod, the stabilizing rod and the rotating rod 411 being arranged axially along the rotation axis of the clamping member 211, the stabilizing rod being rotatably connected to the connecting member 212, and the gripping rod 412 being connected between the stabilizing rod and the rotating rod 411.

[0062] In this way, by arranging the stabilizer bar and the rotating bar 411 axially along the rotation axis of the clamping member 211, with the stabilizer bar rotatably connected to the connecting member 212 and the gripping bar 412 connected between the stabilizer bar and the rotating bar 411, a "U"-shaped frame structure can be formed between the stabilizer bar, the gripping bar 412, and the rotating bar 411 to strengthen the structural strength of the second fixing member 41 and achieve a reliable connection between the second fixing member 41 and the connecting member 212. When the operator applies force through the gripping bar 412, the rotating bar 411 and the stabilizer bar rotate synchronously and smoothly, avoiding the deflection or jamming that may occur with single-point support. This improves the stability of the rotating bar 411 and the stabilizer bar during rotation, ensuring that the first locking structure 3 and the second locking structure 4 can accurately engage and achieve reliable locking.

[0063] In some embodiments, the transmission assembly 23 may include a first rotating member 231 and a second rotating member 232. The first rotating member 231 is connected to the active clamping structure 21, and the second rotating member 232 is connected to the passive clamping structure 22. The first rotating member 231 and the second rotating member 232 are connected in a transmission manner so that the rotation of the first rotating member 231 drives the second rotating member 232 to rotate in the opposite direction.

[0064] In this way, through the arrangement of the first rotating component 231 and the second rotating component 232, the first rotating component 231 is connected to the active clamping structure 21, and the second rotating component 232 is connected to the passive clamping structure 22. When the active clamping structure 21 is rotated, the first rotating component 231 can be driven to rotate. The first rotating component 231 and the second rotating component 232 are connected by transmission, causing the second rotating component 232 to rotate in the opposite direction, which in turn drives the passive clamping structure 22 to rotate in the opposite direction, so that the clamping assembly 2 switches between the clamping state and the non-clamping state. This rotation method has a simple structure, smooth transmission, and good synchronization, which can ensure that the active clamping structure 21 and the passive clamping structure 22 always move symmetrically, so that the front axle of the vehicle remains in a centered position when clamped, further improving the gripping stability.

[0065] In some embodiments, the first rotating member 231 may include a first gear, and the second rotating member 232 may include a second gear, with the first gear and the second gear meshing.

[0066] In this way, by engaging the first gear and the second gear, the clamping assembly 2 can switch between a clamping state and a non-clamping state. Gear transmission has the characteristic of high transmission efficiency, which allows the first gear to efficiently transmit power to the second gear.

[0067] In some other embodiments, the first rotating member 231 may also include a screw, and the second rotating member 232 may include a first nut and a second nut. The screw is movable relative to the support member 1 along the rotation axis of the active clamping structure 21 and the passive clamping structure 22. The first nut and the second nut are both rotatably connected to the support member 1.

[0068] The screw includes a first threaded section and a second threaded section. The thread direction of the first threaded section is opposite to that of the second threaded section. A first nut is threadedly connected to the first threaded section and is connected to the active clamping structure 21. A second nut is threadedly connected to the second threaded section and is connected to the passive clamping structure 22.

[0069] In this way, when the active clamping structure 21 is rotated, the first nut is rotated relative to the support member 1, which in turn causes the screw to translate along the rotation axis of the active clamping structure 21 and the passive clamping structure 22, thereby causing the second nut to rotate. The rotation direction of the second nut is opposite to that of the first nut. The second nut will cause the passive clamping structure 22 to rotate, and the rotation direction of the passive clamping structure 22 is opposite to that of the active clamping structure 21.

[0070] In some embodiments, please continue reading Figures 1 to 3 The active clamping structure 21 may include clamping members 211, which includes a first clamping member 2111, a second clamping member 2112, and a first rotating shaft 2113. The first rotating shaft 2113 is rotatably connected to the support member 1. The first clamping member 2111 and the second clamping member 2112 are both connected to the first rotating shaft 2113 and are arranged along the axial direction of the first rotating shaft 2113. The first fixing member 31 is provided with a through hole, and the first rotating shaft 2113 passes through the through hole, with the axis of the arc surface coinciding with the axis of the first rotating shaft 2113.

[0071] In this way, by rotatably connecting the first rotating shaft 2113 to the support member 1, the support member 1 can support the first rotating shaft 2113 to ensure the rotational accuracy of the first rotating shaft 2113 during rotation. By connecting both the first clamping member 2111 and the second clamping member 2112 to the first rotating shaft 2113 and arranging them along the axial direction of the first rotating shaft 2113, and connecting both the first clamping member 2111 and the second clamping member 2112 to the connecting member 212, the first clamping member 2111 and the second clamping member 2112 can be driven to rotate synchronously through the handle 213 of the connecting member 212, so as to achieve reliable gripping of the hoisted part by the first clamping member 2111 and the second clamping member 2112.

[0072] By providing a through hole in the first fixing member 31 and having the first rotating shaft 2113 pass through the through hole, the axis of the arc surface coincides with the axis of the first rotating shaft 2113, which makes the spatial arrangement of the first fixing member 31 more reasonable and reduces the space occupied by the first fixing member 31.

[0073] In some examples, the first clamping member 2111 and the second clamping member 2112 can be block-shaped, plate-shaped, irregular, etc. The stable clamping of the vehicle front axle can be achieved by increasing the friction between the first clamping member 2111 and the second clamping member 2112 and the surface in contact with the vehicle front axle.

[0074] In some examples, the first link 2121 of the connector 212 can be connected between the first clamping member 2111 and the second clamping member 2112 to reduce the space occupied by the connector 212 on the active clamping structure 21, so that the structure of the active clamping structure 21 is more compact.

[0075] In some other embodiments, the clamping member 211 may also consist only of the first pivot 2113 and the first clamping member 2111.

[0076] In some other embodiments, the first fixing member 31 may also be provided on the radial side of the first rotating shaft 2113, as long as the plurality of first locking teeth 32 on the first fixing member 31 can engage with the plurality of second locking teeth connected to the second fixing member 41.

[0077] In some embodiments, please refer to Figures 1 to 5 The first clamping member 2111 may include a fourth link 2111A and a support portion 2111B. One end of the fourth link 2111A is connected to the first rotating shaft 2113, and the support portion 2111B is connected to the other end of the fourth link 2111A. The support portion 2111B includes a support surface, and the angle between the support surface and the extension direction of the fourth link 2111A is greater than 0° and less than 90°. For example, the angle between the support surface and the extension direction of the fourth link 2111A can be 20°, 30°, 40°, 50°, 60°, 70°, 80°, etc.

[0078] In this way, the supporting surface contacts the lower surface of the part being lifted, and the part being lifted is positioned above the supporting surface, so that it can be gripped by lifting upwards. This upward-lifting gripping method can reduce the requirements on the clamping position and placement accuracy of the part being lifted, so that the supporting surface can adapt to parts with different shapes and surface conditions, thereby improving the versatility and adaptability of the lifting tool 10.

[0079] By setting the support surface to have an angle greater than 0° and less than 90° with the extension direction of the fourth link 2111A, the fourth link 2111A can laterally limit the lifted part after it is positioned above the support surface, thus preventing the lifted part from slipping off the support surface during lifting and further improving the gripping stability.

[0080] In some embodiments, the first clamping member 2111 may further include a first buffer member, which is disposed above the supporting portion 2111B and is used to directly contact the lifted part.

[0081] In this way, by placing the first buffer above the support part 2111B, the first buffer directly contacts the lifted part, which increases the friction between the contact surface between the first buffer and the lifted part, so as to ensure reliable contact between the support part 2111B and the lifted part and realize reliable gripping of the lifted part.

[0082] In addition, by placing the first buffer above the support part 2111B, direct contact between the support part 2111B and the hoisted part can be avoided, thus preventing damage to the surface of the hoisted part.

[0083] In some examples, the first buffer can be a rubber structure, a latex structure, a silicone structure, etc.

[0084] In some embodiments, the passive clamping structure 22 may include a third clamping member 221, a fourth clamping member 222, and a second rotating shaft. The second rotating shaft is rotatably connected to the support member 1. The third clamping member 221 and the fourth clamping member 222 are both connected to the second rotating shaft, and the third clamping member 221 and the fourth clamping member 222 are spaced apart along the axial direction of the second rotating shaft.

[0085] In this way, by rotatably connecting the second rotating shaft to the support member 1, the support member 1 can support the second rotating shaft to ensure the rotational accuracy of the second rotating shaft during rotation. By connecting the third clamping member 221 and the fourth clamping member 222 to the first rotating shaft 2113 and spaced apart along the axial direction of the second rotating shaft, and connecting the first clamping member 2111 and the second clamping member 2112 to the connecting member 212, the first clamping member 2111 and the second clamping member 2112 can be driven to rotate synchronously through the handle 213 of the connecting member 212. Furthermore, the first rotating member 231 connected to the first clamping member 2111 drives the second rotating member 232 to move in the opposite direction. The movement of the second rotating member 232 drives the third clamping member 221 and the fourth clamping member 222 to move in the opposite direction, so as to achieve reliable gripping of the hoisted part by the third clamping member 221 and the fourth clamping member 222.

[0086] In some examples, the structures of the second clamping member 2112, the third clamping member 221, and the fourth clamping member 222 can be the same as the structure of the first clamping member 2111 in any of the above embodiments, and will not be described in detail here.

[0087] The above are merely specific embodiments of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A hoisting tool, characterized in that, include: Support component (1); The clamping assembly (2) includes an active clamping structure (21), a passive clamping structure (22), and a transmission assembly (23). The active clamping structure (21) and the passive clamping structure (22) are rotatably connected to the support member (1). The transmission assembly (23) is drively connected between the active clamping structure (21) and the passive clamping structure (22). The rotation of the active clamping structure (21) can drive the passive clamping structure (22) to rotate in the opposite direction through the transmission assembly (23), so that the clamping assembly (2) can switch between a clamping state and a non-clamping state. The first locking structure (3) and the second locking structure (4) are connected to the support member (1) and the second locking structure (4) is connected to the active clamping structure (21). When the clamping assembly (2) is in the clamping state, the first locking structure (3) and the second locking structure (4) cooperate to lock. When the clamping assembly (2) is in the non-clamping state, the first locking structure (3) and the second locking structure (4) are released from locking.

2. The hoisting tool according to claim 1, characterized in that, The first locking structure (3) includes a first fixing member (31) and a plurality of first locking teeth (32). The first fixing member (31) is provided with an arc surface, and the plurality of first locking teeth (32) are spaced apart on the arc surface along the circumference of the arc surface. The second locking structure (4) includes a second fixing member (41) and a plurality of second locking teeth. The second fixing member (41) is rotatably connected to the active clamping structure (21), and the plurality of second locking teeth are connected to the second fixing part. When the clamping assembly (2) is in the clamping state, the plurality of second locking teeth are arranged circumferentially along the arc surface and engage with the plurality of first locking teeth (32).

3. The hoisting tool according to claim 2, characterized in that, It also includes an elastic element connected between the second fixing member (41) and the active clamping structure (21) for applying an elastic force toward the first locking tooth (32) to the second locking tooth.

4. The hoisting tool according to claim 2, characterized in that, The active clamping structure (21) includes a clamping member (211), a connecting member (212), and a handle (213). The clamping member (211) is rotatably connected to the support member (1) and is used to cooperate with the passive clamping structure (22) to clamp the hoisted part. The connecting member (212) is connected between the handle (213) and the clamping member (211). The handle (213) is used to drive the clamping member (211) to rotate. The second fixing member (41) includes a rotating rod (411) and a gripping rod (412). The rotating rod (411) is rotatably connected to the connecting member (212), and the gripping rod (412) is connected to the rotating rod (411) and arranged circumferentially with the handle (213) along the rotation axis of the clamping member (211).

5. The hoisting tool according to claim 4, characterized in that, The connector (212) includes a first link (2121), a second link (2122), and a third link (2123). The first link (2121) is connected to the clamping member (211). The second link (2122) and the third link (2123) are both connected to the first link (2121) and are arranged axially along the rotation axis of the clamping member (211). The handle (213) is connected between the second link (2122) and the third link (2123). And / or, the second fixing member (41) further includes a stabilizing rod (413), the stabilizing rod (413) and the rotating rod (411) being arranged axially along the rotation axis of the clamping member (211), the stabilizing rod (413) being rotatably connected to the connecting member (212), and the gripping rod (412) being connected between the stabilizing rod (413) and the rotating rod (411).

6. The lifting tool according to any one of claims 2-5, characterized in that, The transmission assembly (23) includes a first rotating member (231) and a second rotating member (232). The first rotating member (231) is connected to the active clamping structure (21), and the second rotating member (232) is connected to the passive clamping structure (22). The first rotating member (231) and the second rotating member (232) are connected in a transmission manner so that the rotation of the first rotating member (231) drives the second rotating member (232) to rotate in the opposite direction.

7. The hoisting tool according to claim 6, characterized in that, The first rotating member (231) includes a first gear, and the second rotating member (232) includes a second gear, and the first gear and the second gear mesh.

8. The lifting tool according to any one of claims 2-5, characterized in that, The active clamping structure (21) includes a clamping member (211), which includes a first clamping member (2111), a second clamping member (2112), and a first rotating shaft (2113). The first rotating shaft (2113) is rotatably connected to the support member (1). The first clamping member (2111) and the second clamping member (2112) are both connected to the first rotating shaft (2113) and are arranged along the axial direction of the first rotating shaft (2113). The first fixing member (31) is provided with a through hole, and the first rotating shaft (2113) passes through the through hole. The axis of the arc surface coincides with the axis of the first rotating shaft (2113).

9. The hoisting tool according to claim 8, characterized in that, The first clamping member (2111) includes a fourth link (2111A) and a support portion (2111B). One end of the fourth link (2111A) is connected to a first rotating shaft (2113), and the support portion (2111B) is connected to the other end of the fourth link (2111A). The support portion (2111B) includes a support surface, and the angle between the support surface and the extending direction of the fourth link (2111A) is greater than 0° and less than 90°.

10. The lifting tool according to any one of claims 1-5, characterized in that, The passive clamping structure (22) includes a third clamping member (221), a fourth clamping member (222), and a second rotating shaft. The second rotating shaft is rotatably connected to the support member (1). The third clamping member (221) and the fourth clamping member (222) are both connected to the second rotating shaft, and the third clamping member (221) and the fourth clamping member (222) are spaced apart along the axial direction of the second rotating shaft.

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