Suspension mechanism, lifting device and vehicle

Abstract

The utility model provides a suspension mechanism, a lifting device and a vehicle, and relates to the technical field of transmission equipment. The suspension mechanism comprises a supporting pipe, a movable rod, a connecting piece, a sleeve, a locking assembly and an unlocking piece. The movable rod is arranged in the supporting pipe and used for being connected with a driving assembly of the lifting device, and the connecting piece is arranged at one end of the movable rod. The locking assembly is arranged in the sleeve, at least part of the supporting pipe is arranged in the sleeve in a sliding mode, and the unlocking piece is arranged in the sleeve in a sliding mode and located between the locking assembly and the supporting pipe. The connecting piece is driven by the movable rod to be locked with the locking assembly in the sleeve, so that the cab and the lifting device are locked, and the cab can be prevented from being out of control and turning backwards during lifting; under the action of the movable rod, the unlocking piece abuts against the locking assembly, the locking assembly relieves limitation on the connecting piece, the cab can suspend up and down and move relative to the lifting device, and therefore the situation that when the cab suspends up and down, the lifting device is damaged due to stress is avoided.

Description

Technical Field

[0001] The present application relates to the technical field of transmission equipment, and in particular to a suspension mechanism, a lifting device and a vehicle. Background Art

[0002] In the related art, the cab of a truck is generally flipped and lifted by a lifting device.

[0003] The lifting device includes a base, a driving member and a telescopic assembly. The base is fixed to the truck frame, the driving member is arranged on the base, and the telescopic assembly is connected to the cab and the driving member respectively. The driving member drives the telescopic assembly to extend and retract to realize the flipping, lifting and other actions of the cab.

[0004] A buffer connection mechanism is provided between the truck's cab and frame. However, when the truck travels on a bumpy road, the cab is prone to shaking. Since the two ends of the lifting device are respectively connected to the cab and the frame, the lifting device is easily damaged by the force. Utility Model Content

[0005] The embodiments of the present application provide a suspension mechanism, a lifting device, and a vehicle to solve the problem that the lifting device is easily damaged when the truck cab shakes.

[0006] In a first aspect, the suspension mechanism provided by the embodiments of the present application includes a support tube, a movable rod, a connecting member, a sleeve, a locking assembly, and an unlocking member;

[0007] The movable rod is arranged in the support tube, and the movable rod is used to connect with the driving component of the lifting device, and the connecting piece is arranged at one end of the movable rod;

[0008] The locking assembly is disposed in the sleeve, at least a portion of the support tube is slidably disposed in the sleeve, and the unlocking member is slidably disposed in the sleeve and is located between the locking assembly and the support tube;

[0009] The movable rod is configured to extend into the sleeve under the action of the driving assembly of the lifting device so that the connecting piece is locked with the locking assembly; under the action of the driving assembly of the lifting device, the sleeve is driven to move toward the support tube, and the support tube abuts the unlocking piece so that the unlocking piece releases the restriction of the locking assembly on the connecting piece.

[0010] In one possible implementation, the suspension mechanism provided in the embodiment of the present application, the locking assembly includes at least one locking block and at least one elastic member;

[0011] An installation cavity is provided in the sleeve, and a locking block is slidably provided in the installation cavity. One end of the elastic member is connected to the installation cavity, and the other end is connected to the locking block. The locking block is provided with an unlocking portion, and the unlocking portion extends out of the installation cavity.

[0012] The movable rod can move relative to the sleeve to switch the locking block between a locked state and an unlocked state. In the locked state, the elastic member abuts the locking block to lock the locking block and the connecting member; in the unlocked state, the unlocking member abuts the unlocking portion, and the locking block squeezes the elastic member to release the restriction on the connecting member.

[0013] In a possible implementation, in the suspension mechanism provided in the embodiment of the present application, a first guide portion is provided at one end of the unlocking member facing the unlocking portion, and a second guide portion is provided at one end of the unlocking portion facing the unlocking member to abut against the first guide portion.

[0014] In one possible implementation, the suspension mechanism provided in the embodiment of the present application is provided with a locking groove on the connecting member that is locked with the locking block, and a third guide portion is provided on the end of the connecting member away from the movable rod;

[0015] The third guide portion is configured to abut against the locking block so that the locking block slides in the installation cavity and squeezes the elastic member.

[0016] In a possible implementation, the suspension mechanism provided in the embodiment of the present application further includes a lifting lug;

[0017] The lifting lug is arranged at one end of the sleeve away from the supporting tube, and the lifting lug is used to be connected to the object to be lifted.

[0018] In one possible implementation, the suspension mechanism provided in the embodiment of the present application has a mounting seat provided in the sleeve, at least a portion of the lifting ear extends into the sleeve, and the mounting seat and a portion of the lifting ear form a mounting cavity.

[0019] A sliding groove is provided on the mounting seat, and the unlocking part is installed on the sliding groove and can slide on the sliding groove.

[0020] In a possible implementation, in the suspension mechanism provided in the embodiment of the present application, a limit ring is provided in the sleeve, and the unlocking member is slidably provided between the limit ring and the locking assembly.

[0021] In a second aspect, the lifting device provided in the embodiments of the present application includes a device body, a drive assembly, and the above-described suspension mechanism;

[0022] The driving assembly is arranged on the device body, at least part of the driving assembly extends into the supporting tube and is connected to the movable rod of the suspension mechanism, and the driving assembly is used for driving the movable rod to move along the supporting tube.

[0023] In one possible implementation, the lifting device provided in the embodiment of the present application, the driving assembly includes a driving member and a driving component;

[0024] The driving member is rotatably arranged in the support tube, the driving component is arranged on the device body, and the output end of the driving component extends into the support tube and is connected to the driving member;

[0025] A movable block is threadedly connected to the driving member, the movable rod is connected to the movable block, and the movable block is configured to move along the driving member as the driving member rotates.

[0026] In a third aspect, an embodiment of the present application provides a vehicle comprising a vehicle body, a cab, and the above-described lifting device;

[0027] The cab is rotatably arranged on the vehicle body, the device body of the lifting device is arranged on the vehicle body, and a part of the suspension mechanism of the lifting device is connected with the cab.

[0028] The utility model provides a suspension mechanism, a lifting device and a vehicle. The suspension mechanism includes a support tube, a movable rod, a connecting piece, a sleeve, a locking assembly and an unlocking piece. The movable rod is arranged in the support tube, and the movable rod is used to connect with the driving assembly of the lifting device, and the connecting piece is arranged at one end of the movable rod. The locking assembly is arranged in the sleeve, and at least a part of the support tube is slidably arranged in the sleeve, and the unlocking piece is slidably arranged in the sleeve and is located between the locking assembly and the support tube. The present application drives the connecting piece to lock with the locking assembly in the sleeve through the movable rod to lock the cab with the lifting device, so as to prevent the cab from losing control and overturning when lifting; under the action of the movable rod, the unlocking piece abuts against the locking assembly, so that the locking assembly releases the restriction on the connecting piece, so that the cab can be suspended up and down and move relative to the lifting device, thereby avoiding damage to the lifting device when the cab is suspended up and down. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.

[0030] Figure 1 A schematic diagram of the structure of the lifting device provided in an embodiment of the present application;

[0031] Figure 2 for Figure 1 AA cross-sectional diagram in;

[0032] Figure 3 for Figure 2 An enlarged view of the area indicated by B in the first embodiment;

[0033] Figure 4 for Figure 2 An enlarged view of the area indicated by B in the second embodiment;

[0034] Figure 5 for Figure 2 An enlarged view of the area indicated by B in the third embodiment;

[0035] Figure 6 for Figure 2 Magnified view of the area indicated by C in FIG.

[0036] Description of reference numerals:

[0037] 100. Suspension mechanism;

[0038] 110. Support tube;

[0039] 120, movable rod;

[0040] 130. Connecting member; 131. Locking groove; 132. Third guide portion;

[0041] 140, sleeve; 141, installation cavity;

[0042] 150, locking assembly; 151, locking block; 1511, unlocking portion; 1512, second guide portion; 152, elastic member; 153, mounting seat;

[0043] 160. Unlocking member; 161. First guide portion;

[0044] 170, hanging lug;

[0045] 180, limit ring;

[0046] 200. Device body;

[0047] 300, drive assembly;

[0048] 310, driving member;

[0049] 320, driving components;

[0050] 330, activity block;

[0051] 340, guide components;

[0052] 350. Gear transmission mechanism.

[0053] The above drawings illustrate specific embodiments of the present application, which will be described in more detail below. These drawings and the textual description are not intended to limit the scope of the present application in any way, but rather to illustrate the concepts of the present application to those skilled in the art by reference to specific embodiments. DETAILED DESCRIPTION

[0054] Exemplary embodiments will be described in detail herein, with examples illustrated in the accompanying drawings. In the following description, when referring to the drawings, identical numerals in different figures represent identical or similar elements, unless otherwise indicated. The embodiments described in the following exemplary embodiments are not intended to represent all embodiments consistent with the present application. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present application, as detailed in the appended claims.

[0055] The terms "first," "second," "third," and "fourth," etc. (if any) in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that the numbers used in this way can be interchanged where appropriate, so that the embodiments of the present invention described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product, or apparatus that includes a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units that are not explicitly listed or that are inherent to these processes, methods, products, or apparatus.

[0056] As mentioned in the background technology, the lifting device includes a base, a driving member and a telescopic assembly. The base is fixed to the frame of the truck, the driving member is arranged on the base, and the telescopic assembly is respectively connected to the cab and the driving member. The driving member drives the telescopic assembly to extend and retract to realize the flipping, lifting and other actions of the cab.

[0057] A buffer connection mechanism is installed between the truck's cab and frame. However, when the truck travels over bumpy roads, the cab is prone to shaking. Since the lifting device connects the cab to the frame at both ends, the lifting device is easily damaged by the force. Furthermore, when the cab shakes, the lifting device is subjected to the force and produces a loud noise.

[0058] In response to the above-mentioned problems existing in the prior art, the present invention provides a suspension mechanism, a lifting device and a vehicle. The suspension mechanism includes a support tube, a movable rod, a connecting piece, a sleeve, a locking assembly and an unlocking piece. The movable rod is arranged in the support tube, and the movable rod is used to connect with the driving assembly of the lifting device, and the connecting piece is arranged at one end of the movable rod. The locking assembly is arranged in the sleeve, and at least a part of the support tube is slidably arranged in the sleeve, and the unlocking piece is slidably arranged in the sleeve and is located between the locking assembly and the support tube. The present application drives the connecting piece to lock with the locking assembly in the sleeve through the movable rod to lock the cab and the lifting device, so as to prevent the cab from losing control and overturning when lifting; under the action of the movable rod, the unlocking piece abuts against the locking assembly, so that the locking assembly releases the restriction on the connecting piece, so that the cab can be suspended up and down and move relative to the lifting device, thereby avoiding damage to the lifting device when the cab is suspended up and down.

[0059] The following specific embodiments describe in detail the technical solution of the present application and how the technical solution of the present application solves the above-mentioned technical problems. The following specific embodiments can be combined with each other, and the same or similar concepts or processes may not be repeated in some embodiments. The embodiments of the present application will be described below in conjunction with the accompanying drawings.

[0060] Reference Figures 2 to 5 As shown, the suspension mechanism 100 provided in the embodiment of the present application includes a support tube 110 , a movable rod 120 , a connecting member 130 , a sleeve 140 , a locking assembly 150 and an unlocking member 160 .

[0061] The movable rod 120 is disposed in the support tube 110 . The movable rod 120 is used to connect to the driving assembly 300 of the lifting device. The connecting member 130 is disposed at one end of the movable rod 120 .

[0062] The locking assembly 150 is disposed in the sleeve 140 . At least a portion of the support tube 110 is slidably disposed in the sleeve 140 . The unlocking member 160 is slidably disposed in the sleeve 140 and is located between the locking assembly 150 and the support tube 110 .

[0063] The movable rod 120 is configured to extend into the sleeve 140 under the action of the driving assembly 300 of the lifting device so that the connecting member 130 is locked with the locking assembly 150; under the action of the driving assembly 300 of the lifting device, the sleeve 140 is driven to move toward the support tube 110, and the support tube 110 abuts against the unlocking member 160, so that the unlocking member 160 releases the restriction of the locking assembly 150 on the connecting member 130.

[0064] The suspension mechanism 100 provided in the embodiment of the present application can be used in a lifting device to lift an object. The suspension mechanism 100 provided in the embodiment of the present application is described in detail below using a truck as an example.

[0065] It is understood that the suspension mechanism 100 provided herein can be used in a lifting device, which includes a device body 200 and a drive assembly 300 disposed on the device body 200. The device body 200 is disposed on the vehicle body of a truck, and the drive assembly 300 is used to connect to the movable rod 120 to drive the movable rod 120 to move along the length of the support tube 110 to raise or lower the truck's cab. A buffer connection mechanism is provided between the truck's cab and the vehicle body to reduce vibration of the cab when the truck travels on bumpy roads.

[0066] In order to avoid damage to the lifting device due to vibration of the cab and reduce the noise generated by the lifting device, the present application provides a suspension mechanism 100 on the existing lifting device, wherein the support tube 110 can be provided on the device body 200, the sleeve 140 is provided on the cab, and at least part of the support tube 110 is slidably provided in the sleeve 140. Figure 4As shown, when the truck is driving, the connecting member 130 of the suspension mechanism 100 is separated from the locking assembly 150, creating a sliding space between the support tube 110 and the sleeve 140, thereby allowing the cab to move relative to the lifting device. When the cab shakes on bumpy roads, the sleeve 140 can move relative to the support tube 110 and the movable rod 120 with the shaking of the cab, thus preventing damage to the lifting device and reducing noise.

[0067] Reference Figure 3 As shown, when the cab needs to be lifted, the lifting device's drive assembly 300 drives the movable rod 120 to move along the length of the support tube 110 toward the locking assembly 150, causing the connector 130 at the end of the movable rod 120 to lock with the locking assembly 150, restricting the sleeve 140 to the movable rod 120, thereby locking the cab to the lifting device. As the movable rod 120 moves, the sleeve 140 moves relative to the support tube 110 and lifts the cab, preventing the cab from uncontrollably tipping over.

[0068] Reference Figure 5 As shown, after the cab is reset, the driving assembly 300 of the lifting device continues to drive the movable rod 120 to move, so that the movable rod 120 drives the sleeve 140 to move toward the support tube 110 until the unlocking member 160 in the sleeve 140 abuts against the support tube 110. As the movable rod 120 continues to move, the unlocking member 160 abuts against the locking assembly 150, so that the locking assembly 150 releases the restriction on the connecting member 130, and then under the action of the driving assembly 300, the movable rod 120 drives the connecting member 130 away from the locking assembly 150, so that the cab can be suspended up and down and move relative to the lifting device.

[0069] For example, the driving assembly 300 of the lifting device may be a hydraulic driving assembly 300 or a ball screw driving assembly 300 or other similar driving assemblies 300, and this application does not impose too many restrictions on this.

[0070] The present application arranges a connecting member 130 on the movable rod 120, and drives the connecting member 130 to lock with the locking assembly 150 in the sleeve 140 through the movable rod 120, so as to lock the cab and the lifting device, thereby preventing the cab from losing control and overturning during lifting; under the action of the movable rod 120, the unlocking member 160 abuts against the locking assembly 150, so that the locking assembly 150 releases the restriction on the connecting member 130, so that the cab can move relative to the lifting device, thereby avoiding damage to the lifting device when the cab shakes.

[0071] Reference Figures 3 to 5 As shown, in some embodiments, the locking assembly 150 includes at least one locking block 151 and at least one elastic member 152 .

[0072] An installation cavity 141 is provided in the sleeve 140, and a locking block 151 is slidably provided in the installation cavity 141. One end of the elastic member 152 is connected to the installation cavity 141, and the other end is connected to the locking block 151. The locking block 151 has an unlocking portion 1511, which extends out of the installation cavity 141.

[0073] The movable rod 120 can move relative to the sleeve 140 to switch the locking block 151 between a locked state and an unlocked state. In the locked state, the elastic member 152 abuts against the locking block 151 to lock the locking block 151 with the connecting member 130; in the unlocked state, the unlocking member 160 abuts against the unlocking portion 1511, and the locking block 151 squeezes the elastic member 152 to release the locking block 151 from the restriction on the connecting member 130.

[0074] In the above embodiment, when locking, the connecting member 130 moves toward the locking block 151 under the action of the movable rod 120. After the connecting member 130 abuts against the locking block 151, the locking block 151 is pushed to slide in the installation cavity 141. The locking block 151 moves and squeezes the elastic member 152 until the locking block 151 and the connecting member 130 are locked together. The elastic force of the elastic member 152 is then used to lock the locking block 151 and the connecting member 130. At this time, the locking block 151 is in a locked state.

[0075] During unlocking, the unlocking member 160 abuts against the support tube 110. As the movable rod 120 drives the sleeve 140 toward the support tube 110, the unlocking member 160 abuts against the unlocking portion 1511 of the locking block 151, pushing the locking block 151 to slide within the installation cavity 141. The locking block 151 moves and squeezes the elastic member 152 until the locking block 151 releases the restriction on the connecting member 130. The locking block 151 is then in the unlocked state, allowing the connecting member 130 to move away from the locking block 151 under the action of the movable rod 120, and the sleeve 140 can move relative to the support tube 110 and the movable rod 120. After the unlocking member 160 separates from the unlocking portion 1511, the locking block 151 can be reset under the action of the elastic member 152.

[0076] The movement direction of the connecting member 130 may intersect with the sliding direction of the locking block 151. Preferably, the movement direction of the connecting member 130 is perpendicular to the sliding direction of the locking block 151. Of course, the movement direction of the unlocking member 160 may also intersect with the sliding direction of the locking block 151, which will not be described in detail.

[0077] It can be understood that there is at least one locking block 151 and at least one elastic member 152. The number of locking blocks 151 and elastic members 152 can be 1, 2, 3 or more. As long as the number of locking blocks 151 and elastic members 152 is the same, this application does not impose too many restrictions on this.

[0078] For example, the elastic member 152 may be a spring.

[0079] Reference Figure 3 and Figure 4 As shown, in some specific embodiments, a first guide portion 161 is provided at one end of the unlocking member 160 facing the unlocking portion 1511 , and a second guide portion 1512 is provided at one end of the unlocking portion 1511 facing the unlocking member 160 for abutting and cooperating with the first guide portion 161 .

[0080] In the above embodiment, when the unlocking member 160 moves toward the locking block 151, the first guide portion 161 can press the unlocking portion 1511 along the second guide portion 1512 of the unlocking portion 1511, so that the locking block 151 slides within the mounting cavity 141 toward the side away from the unlocking member 160. The provision of the first guide portion 161 and the second guide portion 1512 allows the unlocking member 160 to press and push the unlocking portion 1511 more smoothly, avoiding jamming.

[0081] Exemplarily, the first guide portion 161 and the second guide portion 1512 may both be wedge-shaped, triangular, trapezoidal, arc-shaped or similar structures, and this application does not impose too many restrictions on this.

[0082] Reference Figure 4 As shown, specifically, the unlocking member 160 may be a ring-shaped structure, and the connecting member 130 may pass through the connecting member 130 through the through hole of the ring-shaped structure.

[0083] Reference Figure 4 As shown, in some specific embodiments, a locking groove 131 for locking with the locking block 151 is provided on the connecting member 130 , and a third guide portion 132 is provided at one end of the connecting member 130 away from the movable rod 120 .

[0084] The third guide portion 132 is configured to abut against the locking block 151 , so that the locking block 151 slides in the installation cavity 141 and presses the elastic member 152 .

[0085] In the above embodiment, under the action of the movable rod 120, the connector 130 can push the locking block 151 to slide within the installation cavity 141 via the third guide portion 132 provided at its end, so that the main body of the connector 130 can enter until the locking block 151 locks and engages with the locking groove 131 on the connector 130, thereby restricting the sleeve 140 to the movable rod 120. The provision of the third guide portion 132 allows the connector 130 to more smoothly squeeze and push the locking block 151 to move, avoiding jamming.

[0086] Exemplarily, the third guide portions 132 may all be wedge-shaped, triangular, trapezoidal, arc-shaped or similar structures, and this application does not impose too many restrictions on this.

[0087] Reference Figures 3 to 5As shown, in some embodiments, the suspension mechanism 100 provided in the embodiments of the present application further includes a lifting lug 170 .

[0088] The lifting lug 170 is provided at one end of the sleeve 140 away from the support tube 110 , and the lifting lug 170 is used to connect to an object to be lifted.

[0089] In the above embodiment, the sleeve 140 can be connected to the object to be lifted through the lifting lug 170 .

[0090] For example, the object to be lifted may be a cab of a truck.

[0091] Reference Figures 3 to 5 As shown, in some specific embodiments, a mounting seat 153 is provided in the sleeve 140 , and at least a portion of the lifting ear 170 extends into the sleeve 140 . The mounting seat 153 and a portion of the lifting ear 170 enclose a mounting cavity 141 .

[0092] A sliding groove is provided on the mounting seat 153 , and the unlocking portion 1511 is mounted on the sliding groove and can slide on the sliding groove.

[0093] In the above embodiment, the mounting seat 153 can be used to receive the locking block 151 so that the locking block 151 slides on the mounting seat 153 , and the mounting seat 153 and part of the lifting ear 170 enclose the mounting cavity 141 to make the overall structure simpler and more compact.

[0094] Among them, reference Figures 3 to 5 As shown, the mounting seat 153 is provided with a slide groove, and the unlocking portion 1511 is slidably provided on the slide groove. Part of the unlocking portion 1511 extends out of the mounting cavity 141 through the slide groove. In addition, the unlocking portion 1511 can slide through the slide groove and guide the movement of the locking block 151 through the slide groove to prevent the locking block 151 from separating from the elastic member 152.

[0095] Specifically, a working through hole may be provided on the mounting seat 153 for the connector 130 to pass through.

[0096] Reference Figure 3 and Figure 4 As shown, in some embodiments, a limit ring 180 is provided in the sleeve 140 , and the unlocking member 160 is slidably provided between the limit ring 180 and the locking assembly 150 .

[0097] In the above embodiment, the limiting ring 180 is provided to limit the unlocking member 160 between the limiting ring 180 and the locking assembly 150 to prevent the unlocking member 160 from falling out of the sleeve 140 when the sleeve 140 is separated from the support tube 110.

[0098] Exemplarily, the ear 170 can be set on the sleeve 140 by a detachable connection method such as a thread, the mounting seat 153 can be detachably set in the sleeve 140, and the unlocking member 160 is slidably set between the mounting seat 153 and the limiting ring 180, so that the unlocking member 160, the mounting seat 153 and the ear 170 can be easily installed in sequence.

[0099] Reference Figures 1 to 6 As shown, the lifting device provided in the embodiment of the present application includes a device body 200, a driving assembly 300 and the above-mentioned suspension mechanism 100.

[0100] The driving assembly 300 is disposed on the device body 200 . At least a portion of the driving assembly 300 extends into the support tube 110 and is connected to the movable rod 120 of the suspension mechanism 100 . The driving assembly 300 is used to drive the movable rod 120 to move along the support tube 110 .

[0101] In the embodiment of the present application, since the lifting device adopts the suspension mechanism 100 in the above embodiment, it also has the advantages and benefits brought by the above suspension mechanism 100, that is, the lifting device can be locked with the cab under the action of the suspension mechanism 100 to prevent the cab from losing control and overturning; under the action of the suspension mechanism 100, the lifting device can be separated from the cab so that the cab can move relative to the lifting device to avoid damage.

[0102] Reference Figure 2 and Figure 6 As shown, in some embodiments, the drive assembly 300 includes a drive member 310 and a drive component 320 .

[0103] The driving member 310 is rotatably disposed in the support tube 110 . The driving component 320 is disposed on the device body 200 . The output end of the driving component 320 extends into the support tube 110 and is connected to the driving member 310 .

[0104] The driving member 310 is threadedly connected to a movable block 330 , and the movable rod 120 is connected to the movable block 330 . The movable block 330 is configured to move along the driving member 310 as the driving member 310 rotates.

[0105] In the above embodiment, under the action of the driving component 320, the driving member 310 rotates relative to the support tube 110, causing the movable block 330 to move along the axial direction of the driving member 310, thereby driving the movable rod 120 to move along the length direction (axial direction) of the support tube 110. Compared with the hydraulic lifting cylinder in the related art, the structure of the driving member 310 and the movable rod 120 that cooperates in lifting and lowering can eliminate the intervention of the hydraulic cylinder and the need to consider the use environment of the hydraulic oil medium, thus being able to adapt to more demanding working environments.

[0106] Illustratively, the driving component 320 may be a driving motor.

[0107] Specifically, refer to Figure 6 As shown, the drive assembly 300 further includes a gear transmission mechanism 350, which is disposed on the device body 200 and connects the drive component 320 and the drive member 310, respectively. The gear transmission mechanism 350 can adjust the initial rotational speed of the drive component 320 to the transmission rotational speed and cause the drive member 310 to rotate at the transmission rotational speed. The initial rotational speed can be greater than the transmission rotational speed, or the initial rotational speed can be less than the transmission rotational speed, or the initial rotational speed can be equal to the transmission rotational speed, and this application does not impose any restrictions on this.

[0108] Reference Figure 6 As shown, in some specific embodiments, the lifting device provided in the embodiments of the present application further includes a sliding guide component 340.

[0109] The sliding guide component 340 is disposed between the outer wall of the movable block 330 and the inner wall of the support tube 110 . The sliding guide component 340 is fixedly connected to the movable block 330 and slidably abuts against the support tube 110 .

[0110] In the above embodiment, since the support tube 110 is provided, during the movement of the movable rod 120, the guide sliding component 340 is slidably connected to the support tube 110, and part of the movable rod 120 is located in the support tube 110, and an axial fit is formed with the support tube 110 through the guide sliding component 340, so that the support tube 110 plays a supporting and guiding role at the same time, effectively ensuring the stability of the movement and the support strength of the movable rod 120, and improving the use effect of the lifting device.

[0111] Specifically, refer to Figure 6 As shown, the guide member 340 can be an annular member sleeved on the movable block 330, and the outer surface of the guide member 340 forms a slidable abutment with the inner wall of the support tube 110. The movable block 330 and the guide member 340 can be made of wear-resistant, high-strength metal material or ceramic material.

[0112] The vehicle provided in the embodiment of the present application includes a vehicle body, a cab and the above-mentioned lifting device.

[0113] The cab is rotatably mounted on the vehicle body, the device body 200 of the lifting device is mounted on the vehicle body, and a partial suspension mechanism 100 of the lifting device is connected to the cab.

[0114] The vehicle provided in the embodiments of the present application has been described in detail in the embodiments above and will not be further described here.

[0115] Those skilled in the art will readily appreciate other embodiments of the present application after considering the specification and practicing the contents disclosed herein. This application is intended to cover any variations, uses, or adaptations of the present application that follow the general principles of the present application and include common knowledge or customary techniques in the art not disclosed herein. The description and examples are to be considered as exemplary only, and the true scope and spirit of the present application are indicated by the following claims.

[0116] It should be understood that the present application is not limited to the exact structure described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present application is limited only by the appended claims.

Claims

1. A suspension mechanism, characterized in that: It comprises a support tube (110), a movable rod (120), a connecting piece (130), a sleeve (140), a locking assembly (150) and an unlocking piece (160); The movable rod (120) is arranged in the support tube (110), the movable rod (120) is used to connect with the driving assembly (300) of the lifting device, and the connecting member (130) is arranged at one end of the movable rod (120); The locking assembly (150) is disposed in the sleeve (140), at least a portion of the support tube (110) is slidably disposed in the sleeve (140), and the unlocking member (160) is slidably disposed in the sleeve (140) and is located between the locking assembly (150) and the support tube (110); The movable rod (120) is configured to extend into the sleeve (140) under the action of the driving component (300) of the lifting device, so that the connecting member (130) is locked with the locking component (150); under the action of the driving component (300) of the lifting device, the sleeve (140) is driven to move toward the support tube (110), and the support tube (110) abuts against the unlocking member (160), so that the unlocking member (160) releases the restriction of the locking component (150) on the connecting member (130).

2. The suspension mechanism according to claim 1, characterized in that: The locking assembly (150) comprises at least one locking block (151) and at least one elastic member (152); The sleeve (140) is provided with a mounting cavity (141), the locking block (151) is slidably provided in the mounting cavity (141), one end of the elastic member (152) is connected to the mounting cavity (141), and the other end is connected to the locking block (151), the locking block (151) is provided with an unlocking portion (1511), and the unlocking portion (1511) extends out of the mounting cavity (141); The movable rod (120) is capable of moving relative to the sleeve (140) so that the locking block (151) switches between a locked state and an unlocked state. In the locked state, the elastic member (152) abuts against the locking block (151) so that the locking block (151) is locked with the connecting member (130); in the unlocked state, the unlocking member (160) abuts against the unlocking portion (1511), and the locking block (151) squeezes the elastic member (152) so that the locking block (151) releases the restriction on the connecting member (130).

3. The suspension mechanism according to claim 2, characterized in that: One end of the unlocking member (160) facing the unlocking portion (1511) is provided with a first guide portion (161), and one end of the unlocking portion (1511) facing the unlocking member (160) is provided with a second guide portion (1512) abutting against the first guide portion (161).

4. The suspension mechanism according to claim 2, characterized in that: The connecting member (130) is provided with a locking groove (131) that is locked with the locking block (151), and the end of the connecting member (130) away from the movable rod (120) is provided with a third guide portion (132); The third guide portion (132) is configured to abut against the locking block (151) so that the locking block (151) slides in the installation cavity (141) and squeezes the elastic member (152).

5. The suspension mechanism according to claim 2, characterized in that: Also included are lifting lugs (170); The lifting lug (170) is provided at one end of the sleeve (140) away from the support tube (110), and the lifting lug (170) is used to be connected to an object to be lifted.

6. The suspension mechanism according to claim 5, characterized in that: A mounting seat (153) is provided in the sleeve (140), at least a portion of the lifting ear (170) extends into the sleeve (140), and the mounting seat (153) and a portion of the lifting ear (170) enclose the mounting cavity (141); A sliding groove is provided on the mounting seat (153), and the unlocking portion (1511) is mounted on the sliding groove and is capable of sliding on the sliding groove.

7. The suspension mechanism according to any one of claims 1 to 6, characterized in that: A limiting ring (180) is provided in the sleeve (140), and the unlocking member (160) is slidably provided between the limiting ring (180) and the locking assembly (150).

8. A lifting device, characterized in that: It comprises a device body (200), a driving assembly (300), and a suspension mechanism (100) according to any one of claims 1 to 7; The driving assembly (300) is arranged on the device body (200), and at least a portion of the driving assembly (300) extends into the support tube (110) of the suspension mechanism (100) and is connected to the movable rod (120) of the suspension mechanism (100). The driving assembly (300) is used to drive the movable rod (120) of the suspension mechanism (100) to move along the support tube (110) of the suspension mechanism (100).

9. The lifting device according to claim 8, characterized in that: The driving assembly (300) includes a driving member (310) and a driving component (320); The driving member (310) is rotatably disposed in the support tube (110), the driving component (320) is disposed on the device body (200), and the output end of the driving component (320) extends into the support tube (110) and is connected to the driving member (310); A movable block (330) is threadedly connected to the driving member (310), the movable rod (120) is connected to the movable block (330), and the movable block (330) is configured to move along the driving member (310) as the driving member (310) rotates.

10. A vehicle, characterized in that: It comprises a vehicle body, a cab and a lifting device as claimed in claim 8 or 9; The cab is rotatably arranged on the vehicle body, the device body (200) of the lifting device is arranged on the vehicle body, and a partial suspension mechanism (100) of the lifting device is connected to the cab.

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