Suspension mechanism, lifting device and vehicle

Abstract

The invention 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 on 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.

[0004] A buffer connection mechanism is provided between the cab and the frame of the truck. However, when the truck is traveling 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. Summary of the invention

[0005] The embodiments of the present application provide a suspension mechanism, a lifting device and a vehicle, so as 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 embodiment of the present application includes a support tube, a movable rod, a connecting piece, a sleeve, a locking assembly and an unlocking piece;

[0007] The movable rod is arranged in the supporting tube, the movable rod is used to be connected with the driving assembly of the lifting device, and the connecting piece is arranged at one end of the movable rod;

[0008] The locking assembly is arranged in the sleeve, at least a part of the support tube is slidably arranged in the sleeve, and the unlocking member is slidably arranged 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 a possible implementation, in 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 against the locking block to lock the locking block with the connecting member; in the unlocked state, the unlocking member abuts against the unlocking portion, and the locking block squeezes the elastic member to release the locking block from restricting 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 abutting against the first guide portion is provided at one end of the unlocking portion facing the unlocking member.

[0014] In a possible implementation, in the suspension mechanism provided in the embodiment of the present application, a locking groove for locking with the locking block is provided on the connecting member, and a third guide portion is provided at one 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 presses 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 with the object to be lifted.

[0018] In a possible implementation, in the suspension mechanism provided in the embodiment of the present application, a mounting seat is 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 are surrounded by a mounting cavity;

[0019] The mounting seat is provided with a slide groove, and the unlocking part is mounted on the slide groove and can slide on the slide 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 embodiment of the present application includes a device body, a driving assembly and the above 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 with 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 a possible implementation, in 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, a 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, a vehicle provided by an embodiment of the present application includes a vehicle body, a cab, and the above 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 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 flipping over 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 the lifting device from being damaged by force 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 a lifting device provided in an embodiment of the present application;

[0031] Figure 2 for Figure 1 AA section diagram in;

[0032] Figure 3 for Figure 2 BB is an enlarged schematic diagram of the first embodiment;

[0033] Figure 4 for Figure 2 BB is an enlarged schematic diagram of the second embodiment;

[0034] Figure 5 for Figure 2 BB is an enlarged schematic diagram of the third embodiment;

[0035] Figure 6 for Figure 2 Schematic diagram of the CC cross section.

[0036] Description of reference numerals:

[0037] 100. Suspension mechanism;

[0038] 110. Support pipe;

[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 lugs;

[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 have shown clear embodiments of the present application, which will be described in more detail later. These drawings and text descriptions are not intended to limit the scope of the present application in any way, but to illustrate the concept of the present application to those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0054] Exemplary embodiments will be described in detail herein, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, the same numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the following exemplary embodiments do not represent all implementations consistent with the present application. Instead, they are merely examples of devices and methods consistent with some aspects of the present application as detailed in the appended claims.

[0055] The terms "first", "second", "third", "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 data 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 device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0056] As mentioned in the background technology, the lifting device includes a base, a driving member and a telescopic assembly. The base is fixed on 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 provided between the cab and the frame of the truck. However, when the truck is driving on a bumpy road, the cab is prone to shaking. Since the two ends of the lifting device are connected to the cab and the frame respectively, the lifting device is easily damaged by force. In addition, when the cab shakes, the lifting device is also subjected to force and produces a large noise.

[0058] In view of the above 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 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 flipping over 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 the lifting device from being damaged by force when the cab is suspended up and down.

[0059] The technical solution of the present application and how the technical solution of the present application solves the above-mentioned technical problems are described in detail below with specific embodiments. 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 be connected 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 , 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 .

[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 150, so that the unlocking member 150 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 to be lifted. 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 can be understood that the suspension mechanism 100 provided in the present application can be used in a lifting device, which includes a device body 200 and a driving assembly 300 disposed on the device body 200, the device body 200 is disposed on the vehicle body of the truck, and the driving assembly 300 is used to connect with the movable rod 120 to drive the movable rod 120 to move along the length direction of the support tube 110 to lift or lower the cab of the truck. A buffer connection mechanism is provided between the cab of the truck and the vehicle body, and when the truck travels on a bumpy road section, the vibration of the cab is reduced by the buffer connection mechanism.

[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 piece 130 of the suspension mechanism 100 is separated from the locking assembly 150, and there is a sliding displacement space between the support pipe 110 and the sleeve 140, so that the cab can move relative to the lifting device. When encountering a bumpy road section, when the cab shakes, the sleeve 140 can move relative to the support pipe 110 and the movable rod 120 with the shaking of the cab, thereby avoiding damage to the lifting device due to force and also reducing noise.

[0067] Reference Figure 3 As shown, when the cab needs to be lifted, the driving assembly 300 of the lifting device drives the movable rod 120 to move along the length direction of the support tube 110 toward the locking assembly 150, so that the connecting piece 130 at the end of the movable rod 120 is locked with the locking assembly 150, and the sleeve 140 is restricted on the movable rod 120, thereby locking the cab and the lifting device. With the movement of the movable rod 120, the sleeve 140 moves relative to the support tube 110 and lifts the cab, preventing the cab from rolling over uncontrollably.

[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. 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] Exemplarily, 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 the present application does not impose too many restrictions on this.

[0070] The present application arranges a connecting member 130 on a movable rod 120, and drives the connecting member 130 to lock with a locking assembly 150 in a 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 tipping over 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 preventing the lifting device from being damaged by force 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 . An unlocking portion 1511 is provided on the locking block 151 , and the unlocking portion 1511 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, and after the connecting member 130 abuts against the locking block 151, the locking block 151 is pushed to slide in the installation cavity 141, and the locking block 151 moves and squeezes the elastic member 152 until the locking block 151 and the connecting member 130 are locked and matched, and the elastic force of the elastic member 152 is used to lock the locking block 151 and the connecting member 130, and at this time, the locking block 151 is in a locked state.

[0075] When unlocking, the unlocking member 160 abuts against the support tube 110, and as the movable rod 120 drives the sleeve 140 to move toward the support tube 110, after the unlocking member 160 abuts against the unlocking portion 1511 of the locking block 151, the locking block 151 is pushed to slide in the installation cavity 141, and the locking block 151 moves and squeezes the elastic member 152 until the locking block 151 releases the restriction on the connecting member 130, and the locking block 151 is in an unlocked state, so that the connecting member 130 can 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 is separated 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 is understandable that there are 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, the present application does not impose too many restrictions on this.

[0078] Exemplarily, 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 abutting against the first guide portion 161 is provided at one end of the unlocking portion 1511 facing the unlocking member 160 .

[0080] In the above embodiment, when the unlocking member 160 moves toward the locking block 151, the first guide portion 161 can squeeze the unlocking portion 1511 along the second guide portion 1512 of the unlocking portion 1511, so that the locking block 151 slides in the installation cavity 141 toward the side away from the unlocking member 160. By providing the first guide portion 161 and the second guide portion 1512, the unlocking member 160 can squeeze and push the unlocking portion 1511 more smoothly to avoid 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 the present 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 connecting member 130 can push the locking block 151 to slide in the installation cavity 141 through the third guide portion 132 provided at the end thereof, so that the main body of the connecting member 130 can enter until the locking block 151 is locked and matched with the locking groove 131 on the connecting member 130, thereby restricting the sleeve 140 on the movable rod 120. By providing the third guide portion 132, the connecting member 130 can squeeze and push the locking block 151 to move more smoothly to avoid jamming.

[0086] Exemplarily, the third guide portions 132 may all be wedge-shaped, triangular, trapezoidal, arc-shaped or similar structures, and the present 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 embodiment of the present application further includes a lifting ear 170 .

[0088] The lifting lug 170 is disposed at one end of the sleeve 140 away from the support tube 110 , and the lifting lug 170 is used to connect with 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] Exemplarily, 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 disposed 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 surround a mounting cavity 141 .

[0092] A slide groove is provided on the mounting seat 153 , and the unlocking portion 1511 is mounted on the slide groove and can slide on the slide 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 are surrounded by the mounting cavity 141 to make the overall structure simpler and more compact.

[0094] Among them, refer to Figures 3 to 5 As shown, a slide groove is provided on the mounting seat 153, and the unlocking portion 1511 is slidably provided on the slide groove, and a portion 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 connecting member 130 to pass through.

[0096] Reference Figure 3 and Figure 4 As shown, in some embodiments, a limit ring 180 is disposed in the sleeve 140 , and the unlocking member 160 is slidably disposed 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 suspension mechanism 100.

[0100] The driving assembly 300 is disposed on the device body 200 , and 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; the lifting device can be separated from the cab under the action of the suspension mechanism 100, 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] A movable block 330 is threadedly connected to the driving member 310 , 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, so that the movable block 330 moves 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 cooperating in lifting and lowering can avoid the intervention of the hydraulic cylinder, and there is no need to consider the use environment of the hydraulic oil medium, so it can adapt to more severe working environments.

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

[0107] Specifically, refer to Figure 6 As shown, the driving assembly 300 further includes a gear transmission mechanism 350, which is disposed on the device body 200, and the gear transmission mechanism 350 is respectively connected to the driving component 320 and the driving member 310, and the gear transmission mechanism 350 can adjust the initial speed of the driving component 320 to the transmission speed, and make the driving member 310 rotate according to the transmission speed. Among them, the initial speed can be greater than the transmission speed, or the initial speed can be less than the transmission speed, or the initial speed can be equal to the transmission speed, and this application does not limit 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 is slidably abutted against the support tube 110 .

[0110] In the above embodiment, due to the provision of the support tube 110, when the movable rod 120 moves, 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 supporting 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 slide component 340 can be an annular member sleeved on the movable block 330, and the outer surface of the guide slide component 340 forms a slidable abutment with the inner wall of the support tube 110. The movable block 330 and the guide slide component 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 arranged on the vehicle body, the device body 200 of the lifting device is arranged on the vehicle body, and a part of the 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 description and practicing the contents disclosed herein. The present application is intended to cover any modification, use or adaptation of the present application, which follows the general principles of the present application and includes common knowledge or customary techniques in the art that are not disclosed in the present application. The description and examples are intended to be 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 precise structures that have been 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 be connected to 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 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 (150) so that the unlocking member (150) releases the restriction of the locking assembly (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 an installation cavity (141), the locking block (151) is slidably arranged 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) is provided with an unlocking portion (1511), and the unlocking portion (1511) extends out of the installation 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: The unlocking member (160) is provided with a first guide portion (161) at one end thereof facing the unlocking portion (1511), and the unlocking portion (1511) is provided with a second guide portion (1512) abutting against the first guide portion (161) at one end thereof facing the unlocking member (160).

4. The suspension mechanism according to claim 2, characterized in that: The connecting member (130) is provided with a locking groove (131) for locking with the locking block (151), and a third guide portion (132) is provided at one end of the connecting member (130) away from the movable rod (120); 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).

5. The suspension mechanism according to claim 2, characterized in that: Also comprising a lifting lug (170); The lifting ear (170) is arranged at one end of the sleeve (140) away from the support tube (110), and the lifting ear (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 arranged 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) surround the mounting cavity (141); The mounting seat (153) is provided with a slide groove, and the unlocking portion (1511) is mounted on the slide groove and is capable of sliding on the slide groove.

7. The suspension mechanism according to any one of claims 1 to 6, characterized in that: A limit ring (180) is arranged inside the sleeve (140), and the unlocking member (160) is slidably arranged between the limit 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); 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) comprises a driving member (310) and a driving component (320); The driving member (310) is rotatably disposed in the supporting 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 supporting 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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