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 moving rod, a main body pipe, a movable pipe, a limiting piece and a locking assembly. The moving rod is arranged in the main body pipe, at least part of the main body pipe is slidably arranged in the movable pipe, and the limiting piece is slidably arranged in the movable pipe and connected with the moving rod. The locking assembly is arranged on the movable pipe and corresponds to the main body pipe. The limiting piece is arranged on the moving rod, the locking assembly on the movable pipe can stretch into the movable pipe to be matched with the limiting piece to lock the movable pipe on the moving rod, 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; when the moving rod drives the movable pipe to move towards the main body pipe, the locking assembly retreats from the movable pipe under the action of the main body pipe to relieve limitation on the limiting piece, so that the cab can move relative to the lifting device, and the situation that the lifting device is damaged due to stress when the cab floats up and down is avoided.

Description

Technical Field

[0001] This 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] A truck includes a cab and a body connected to the cab. A lifting mechanism is provided between the cab and the body, and the lifting mechanism is used to implement actions such as lifting and flipping of the cab.

[0003] In the related art, the lifting device includes a base, a driving member, and a telescopic assembly. The base is fixed to the body 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. By driving the telescopic assembly to extend and contract by the driving member, actions such as flipping and lifting of the cab are realized.

[0004] However, when the truck travels on a bumpy road section, the cab is prone to floating up and down. Since both ends of the lifting mechanism are respectively connected to the cab and the vehicle frame, the lifting device is easily damaged by the force. Summary of the Invention

[0005] This application provides a suspension mechanism, a lifting device, and a vehicle to solve the problem that the lifting device is easily damaged when the cab of the truck floats up and down.

[0006] In a first aspect, the suspension mechanism provided by an embodiment of this application includes a moving rod, a main body tube, a movable tube, a limiting member, and a locking assembly;

[0007] The moving rod is arranged inside the main body tube. The moving rod is used to connect with the driving assembly of the lifting device. At least part of the main body tube is slidably arranged inside the movable tube. The limiting member is slidably arranged inside the movable tube and is connected to the moving rod;

[0008] The locking assembly is arranged on the movable tube and is correspondingly arranged with the main body tube. Part of the locking assembly is configured to, when the moving rod drives the limiting member to abut against the end of the movable tube and drives the movable tube away from the main body tube, extend into the movable tube and abut against the limiting member to limit the movement of the limiting member relative to the movable tube; when the moving rod drives the movable tube to approach the main body tube, under the action of the main body tube, it withdraws from the movable tube to release the restriction on the limiting member.

[0009] In a possible implementation manner, for the suspension mechanism provided by an embodiment of this application, the locking assembly includes a support member, a locking member, and an elastic member;

[0010] The support member is arranged on the movable tube. The support member has an installation cavity, and the installation cavity communicates with the inner cavity of the movable tube. The locking member is slidably arranged inside the installation cavity, and the elastic member is arranged inside the installation cavity and is connected to the locking member;

[0011] The locking member is configured to extend into the movable tube under the action of the elastic member and abut against the limiting member to restrict the movement of the limiting member relative to the movable tube; under the action of the main body tube, it withdraws from the movable tube and puts the elastic member in an energy storage state to release the restriction on the limiting member.

[0012] In a possible implementation manner, for the suspension mechanism provided in the embodiment of the present application, the locking member includes a movable portion, a connecting portion, and a locking portion. Both the movable portion and the locking portion are slidably disposed in the installation cavity. The movable portion corresponds to the main body tube. The connecting portion connects the movable portion and the locking portion, and the elastic member is connected to the connecting portion;

[0013] The locking portion is configured to extend into or withdraw from the movable tube under the drive of the movable portion to restrict the movement of the limiting member or release the restriction on the limiting member.

[0014] In a possible implementation manner, for the suspension mechanism provided in the embodiment of the present application, a guiding portion is provided at one end of the movable portion close to the main body tube. The guiding portion is configured to abut against the main body tube to drive the movable portion to withdraw from the movable tube.

[0015] In a possible implementation manner, for the suspension mechanism provided in the embodiment of the present application, the connecting portion includes a first connecting portion and a second connecting portion. The first connecting portion is rotatably connected to the movable portion, the second connecting portion is rotatably connected to the locking portion, the first connecting portion is rotatably connected to the second connecting portion, and the elastic member is disposed between the first connecting portion and the second connecting portion.

[0016] In a possible implementation manner, for the suspension mechanism provided in the embodiment of the present application, the locking assembly further includes a first mounting member and a second mounting member. Both the first mounting member and the second mounting member are disposed in the installation cavity. The first connecting portion is rotatably disposed on the first mounting member, and the second connecting portion is rotatably disposed on the second mounting member.

[0017] In a possible implementation manner, for the suspension mechanism provided in the embodiment of the present application, the installation cavity includes a first installation cavity, a second installation cavity, and a third installation cavity that are sequentially communicated. The first installation cavity, the second installation cavity, and the third installation cavity are spaced apart along the length direction of the movable tube, and the first installation cavity is close to the main body tube;

[0018] The first installation cavity and the third installation cavity are communicated with the inner cavity of the movable tube. The movable portion and the elastic member are both disposed in the first installation cavity, the connecting portion is disposed in the second installation cavity, and the locking portion is disposed in the third installation cavity.

[0019] In a possible implementation manner, for the suspension mechanism provided in the embodiment of the present application, a guiding and sliding member is provided on the limiting member. The guiding and sliding member is located between the limiting member and the movable tube and is slidably connected to the movable tube.

[0020] In a second aspect, the lifting device provided by the embodiments of the present application includes a device body, a driving component, and a suspension mechanism as described in any one of the above;

[0021] The driving component is arranged on the device body, at least part of the driving component extends into the main pipe of the suspension mechanism and is connected to the moving rod of the suspension mechanism, and the driving component is used to drive the moving rod of the suspension mechanism to move along the main pipe of the suspension mechanism.

[0022] In a third aspect, the vehicle provided by the embodiments of the present application includes a vehicle body and the above-mentioned lifting device, and the lifting device is arranged on the vehicle body.

[0023] The suspension mechanism provided by the embodiments of the present application, by arranging a limiting member on the moving rod, the locking component on the movable pipe can extend into the movable pipe and cooperate with the limiting member to lock the movable pipe on the moving rod, so as to lock the cab with the lifting device and prevent the cab from tipping over out of control during lifting; when the moving rod drives the movable pipe to move towards the main pipe, the locking component withdraws from the movable pipe under the action of the main pipe to release the restriction on the limiting member, so that the cab can move relative to the lifting device, thereby avoiding damage to the lifting device when the cab floats up and down. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The drawings here are incorporated into the specification and constitute a part of this specification, showing embodiments consistent with the present application, and are used together with the specification to explain the principles of the present application.

[0025] Figure 1 is a schematic structural diagram of the lifting device provided by the embodiments of the present application;

[0026] Figure 2 is Figure 1 the A-A cross-sectional view of the lifting device in

[0027] Figure 3 is Figure 2 the first schematic diagram of the locking component of the suspension mechanism in the unlocked state in

[0028] Figure 4 is Figure 3 the enlarged view of the first part of the structure of the suspension mechanism in

[0029] Figure 5 is Figure 3 the enlarged view of the second part of the structure of the suspension mechanism in

[0030] Figure 6 is Figure 2 the second schematic diagram of the locking component of the suspension mechanism in the unlocked state in

[0031] Figure 7 is Figure 2Schematic diagram of the locking assembly of the suspension mechanism in the locked state.

[0032] Explanation of reference numerals:

[0033] 10. Suspension mechanism;

[0034] 100. Movement rod;

[0035] 200. Main body pipe;

[0036] 300. Movable pipe; 310. First through hole; 320. Second through hole; 330. Hanging ear;

[0037] 400. Limiting member; 410. Guide sliding member;

[0038] 500. Locking assembly; 510. Support member; 511. Installation cavity; 5111. First installation cavity; 5112. Second installation cavity; 5113. Third installation cavity; 520. Locking member; 521. Movable part; 522. Connection part; 5221. First connection part; 5222. Second connection part; 523. Locking part; 524. Guide part; 540. First installation member; 550. Second installation member;

[0039] 20. Device body;

[0040] 30. Driving assembly.

[0041] Through the above-mentioned drawings, the specific embodiments of the present application have been shown, and there will be more detailed descriptions hereinafter. These drawings and text descriptions are not intended to limit the scope of the concept 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 of the specific embodiment

[0042] Here, the exemplary embodiments will be described in detail, and the examples are shown in the drawings. When the following description refers to the drawings, unless otherwise indicated, the same numerals in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. On the contrary, they are merely examples of devices and methods consistent with some aspects of the present application as detailed in the appended claims.

[0043] In the description and claims of the present invention and the above-mentioned drawings, terms such as "first", "second", "third", and "fourth" (if any) are used to distinguish similar objects and do not necessarily describe a specific order or sequence. It should be understood that such data can be interchanged under appropriate circumstances 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 "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or device that includes a series of steps or units does not necessarily have to be limited to those steps or units clearly listed, but may include other steps or units not clearly listed or inherent to these processes, methods, products, or devices.

[0044] As described in the background art, in the related art, 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 disposed on the base, and the telescopic assembly is respectively connected to the cab and the driving member. The telescopic assembly is driven by the driving member to extend and contract to achieve actions such as flipping and lifting of the cab.

[0045] However, when the truck travels on a bumpy road section, the cab is prone to vertical floating. Since both ends of the lifting mechanism are respectively connected to the cab and the frame, the lifting device is easily damaged due to the force.

[0046] Exemplarily, a shock-absorbing buffer mechanism (such as a shock-absorbing spring structure) and a lifting mechanism are provided between the cab and the vehicle body. The shock-absorbing buffer mechanism is used to buffer and damp the cab, absorb road vibrations, reduce the impact of these vibrations on the driver, thereby improving driving comfort and reducing driving fatigue. The lifting mechanism is used to achieve actions such as lifting and flipping of the cab, usually for facilitating maintenance, cleaning, or improving the accessibility of the cab in special cases. However, when the truck travels on a bumpy road section, although the shock-absorbing buffer mechanism can play a role in buffering and damping, the cab will still have a certain amount of vertical floating relative to the vehicle body, resulting in the lifting device being easily damaged due to the force.

[0047] 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 main body tube, a moving rod, a movable tube, a limiting member and a locking assembly. The moving rod is arranged inside the main body tube and is used for connecting with the driving assembly of the lifting device. At least part of the main body tube is slidably arranged inside the movable tube. The limiting member is slidably arranged inside the movable tube and is connected with the moving rod. The locking assembly is arranged on the movable tube and is correspondingly arranged with the main body tube. In this application, by arranging a limiting member on the moving rod, the locking assembly on the movable tube can extend into the movable tube to cooperate with the limiting member to lock the movable tube on the moving rod, so as to lock the cab with the lifting device and prevent the cab from tipping over uncontrollably during lifting. When the moving rod drives the movable tube to move towards the main body tube, the locking assembly withdraws from the movable tube under the action of the main body tube to release the restriction on the limiting member, so that the cab can move relative to the lifting device, thereby avoiding damage to the lifting device when the cab floats up and down.

[0048] The following will specifically describe the technical solutions of this application and how the technical solutions of this application solve the above technical problems with specific embodiments. These several specific embodiments below can be combined with each other, and the same or similar concepts or processes may not be repeated in some embodiments. The following will describe the embodiments of this application with reference to the drawings.

[0049] Refer to Figures 2 to 7 As shown in the figure, the suspension mechanism 10 provided in the embodiment of this application includes a moving rod 100, a main body tube 200, a movable tube 300, a limiting member 400 and a locking assembly 500.

[0050] The moving rod 100 is arranged inside the main body tube 200. The moving rod 100 is used for connecting with the driving assembly 30 of the lifting device. At least part of the main body tube 200 is slidably arranged inside the movable tube 300. The limiting member 400 is slidably arranged inside the movable tube 300 and is connected with the moving rod 100.

[0051] The locking assembly 500 is arranged on the movable tube 300 and is correspondingly arranged with the main body tube 200. Part of the locking assembly 500 is configured to extend into the movable tube 300 and abut against the limiting member 400 to limit the movement of the limiting member 400 relative to the movable tube 300 when the moving rod 100 drives the limiting member 400 to abut against the end of the movable tube 300 and drives the movable tube 300 away from the main body tube 200. When the moving rod 100 drives the movable tube 300 to approach the main body tube 200, it withdraws from the movable tube 300 under the action of the main body tube 200 to release the restriction on the limiting member 400.

[0052] Among them, the suspension mechanism 10 provided in the embodiment of this application can be applied to a lifting device to lift and lower the object to be lifted through the lifting device. Taking a truck as an example, the suspension mechanism 10 provided in the embodiment of this application will be described by way of example.

[0053] It is understandable that the suspension mechanism 10 provided in this application can be applied to a lifting device. The lifting device includes a device body 20 and a driving component 30. The driving component 30 is arranged on the device body 20. The device body 20 can be arranged on the body of a truck. The driving component 30 is connected to the moving rod 100 of the suspension mechanism 10. The driving component 30 can drive the moving rod 100 to move along the length direction of the main pipe 200, so as to lift or lower the cab of the truck. Among them, a buffer and shock absorption mechanism can be arranged between the cab of the truck and the body. When the truck travels on a bumpy road section, the vibration of the cab is reduced through the buffer connection mechanism.

[0054] In order to avoid damage to the lifting device when the cab vibrates, in this application, a suspension mechanism 10 is arranged on the existing lifting device to reduce the damage of the lifting device. Among them, the main pipe 200 of the suspension mechanism 10 can be arranged on the device body 20 of the lifting device, and the movable pipe 300 is arranged on the cab. At least part of the main pipe 200 is slidably arranged in the movable pipe 300. Refer to Figures 3 to 6 As shown, when the truck is driving, the locking component 500 withdraws from the movable pipe 300, and the main pipe 200 abuts against the locking component 500 to prevent it from entering the movable pipe 300, and the limiting member 400 abuts against the main pipe 200. In this way, there is a sliding displacement space between the main pipe 200 and the movable pipe 300, so that the cab can move relative to the lifting device. When the cab floats up and down on a bumpy road section of the truck, the movable pipe 300 can move relative to the main pipe 200 and the moving rod 100 as the cab floats up and down, thus avoiding damage to the lifting device due to force.

[0055] Refer to Figure 6 and Figure 7 As shown, when the cab is lifted, the driving component 30 of the lifting device drives the moving rod 100 to move towards the movable pipe 300 along the length direction of the main pipe 200. The limiting member 400 moves towards the movable pipe 300 under the drive of the moving rod 100 and abuts against the end of the movable pipe 300, so that the moving rod 100 can drive the movable pipe 300 to move relative to the main pipe 200. Until the locking component 500 on the movable pipe 300 is separated from the main pipe 200, in this way, the locking component 500 can extend into the movable pipe 300 and abut against the limiting member 400 to limit the movement of the limiting member 400 relative to the movable pipe 300, thereby locking the movable pipe 300 on the moving rod 100 to lock the cab and the lifting device. As the moving rod 100 moves, the cab is lifted by the movement of the movable pipe 300 relative to the main pipe 200. In this way, the movable pipe 300 is locked to the moving rod 100 through the locking component 500 to prevent the cab from tipping over out of control.

[0056] Refer to Figure 3 、Figure 6 and Figure 7 As shown in Figure 7 , when the cab descends and resets, the drive assembly 30 of the lifting device continues to drive the moving rod 100 to move, so that the moving rod 100 drives the movable tube 300 to move towards the main body tube 200 until the locking assembly 500 extending into the movable tube 300 abuts against the main body tube 200. As the moving rod 100 continues to move, the locking assembly 500 exits the movable tube 300 under the action of the main body tube 200 to release the restriction on the limiting member 400. After the movable member drives the limiting member 400 to abut against the main body tube 200, a sliding displacement space can be formed between the movable tube 300 and the main body tube 200, so that the cab can float up and down and move relative to the lifting device, thus avoiding damage to the lifting device due to force.

[0057] Exemplarily, the drive assembly 30 of the lifting device may adopt a hydraulic drive assembly 30 or a ball screw drive assembly 30 and other similar drive assemblies 30. The embodiments of the present application do not impose too many restrictions on this.

[0058] In summary, in the present application, by providing the limiting member 400 on the moving rod 100, the locking assembly 500 on the movable tube 300 can extend into the movable tube 300 and cooperate with the limiting member 400 to lock the movable tube 300 on the moving rod 100, so as to lock the cab and the lifting device, and prevent the cab from tipping over out of control during lifting; when the moving rod 100 drives the movable tube 300 to move towards the main body tube 200, the locking assembly 500 exits the movable tube 300 under the action of the main body tube 200 to release the restriction on the limiting member 400, so that the cab can move relative to the lifting device, thus avoiding damage to the lifting device due to force when the cab floats up and down.

[0059] Referring to Figure 3 and Figure 4 As shown in Figure 4 , in some embodiments, the locking assembly 500 includes a support member 510, a locking member 520 and an elastic member (not shown in the figure). The support member 510 is arranged on the movable tube 300. The support member 510 has an installation cavity 511 which is communicated with the inner cavity of the movable tube 300. The locking member 520 is slidably arranged in the installation cavity 511. The elastic member is arranged in the installation cavity 511 and is connected to the locking member 520.

[0060] The locking member 520 is configured to extend into the movable tube 300 under the action of the elastic member and abut against the limiting member 400 to restrict the movement of the limiting member 400 relative to the movable tube 300; under the action of the main body tube 200, it exits the movable tube 300 and makes the elastic member in an energy storage state to release the restriction on the limiting member 400.

[0061] In the above embodiments, the support member 510 functions to support and mount the locking member 520 and the elastic member. The locking member 520 is slidably disposed within the mounting cavity 511 of the support member 510 to extend into or withdraw from the inner cavity of the movable tube 300, thereby restricting the movement of the limiting member 400 relative to the movable tube 300 or releasing the restriction on the limiting member 400.

[0062] Specifically, referring to Figure 6 and Figure 7 As shown, when the cab is lifted, under the action of the moving rod 100 and the limiting member 400, the movable tube 300 moves in a direction away from the main tube 200 until the locking member 520 disengages from the main tube 200. In this way, under the action of the elastic member, the locking member 520 extends into the movable tube 300 and abuts against the limiting member 400, thereby restricting the movement of the limiting member 400 and the moving rod 100 relative to the movable tube 300. At this time, the elastic member is in a natural state.

[0063] Referring to Figure 6 and Figure 7 As shown, when the cab descends and resets, under the action of the moving rod 100 and the limiting member 400, the movable tube 300 moves in the direction of the main tube 200 until the locking member 520 extending into the movable tube 300 abuts against the main tube 200. As the moving rod 100 continues to move, the locking member 520 withdraws from the movable tube 300 under the action of the main tube 200, thereby releasing the restriction on the limiting member 400. At this time, the elastic member is in an energy storage state (such as a compressed state or a stretched state), and presses the locking member 520 against the main tube 200.

[0064] Exemplarily, the elastic member can be a spring, a torsion spring, etc.

[0065] Referring to Figure 4 As shown, in some embodiments, the locking member 520 includes a movable portion 521, a connecting portion 522, and a locking portion 523. Both the movable portion 521 and the locking portion 523 are slidably disposed within the mounting cavity 511. The movable portion 521 is correspondingly disposed with the main tube 200. The connecting portion 522 connects the movable portion 521 and the locking portion 523, and the elastic member is connected to the connecting portion 522.

[0066] The locking portion 523 is configured to extend into or withdraw from the movable tube 300 under the drive of the movable portion 521 to restrict the movement of the limiting member 400 or release the restriction on the limiting member 400.

[0067] In the above embodiments, the movable part 521 is correspondingly arranged with the main body pipe 200, and the elastic member is connected to the connecting part 522. In this way, when the movable part 521 is disengaged from the main body pipe 200, the elastic member drives the connecting part 522 to move, so as to drive the movable part 521 and the locking part 523 to extend into the movable pipe 300. In this way, the locking part 523 abuts against the limiting member 400 to play a role in restricting the limiting member 400.

[0068] When the movable part 521 abuts against the main body pipe 200, the movable part 521 exits the movable pipe 300 under the action of the main body pipe 200, and drives the locking part 523 to move through the connecting part 522, so that the locking part 523 exits the movable pipe 300, thereby releasing the restriction on the limiting member 400. At this time, the elastic member is in an energy storage state (such as a compressed state or a stretched state) under the action of the connecting part 522, and presses the movable part 521 against the main body pipe 200.

[0069] Further, referring to Figure 4 As shown, the movable part 521 and the locking part 523 are arranged at intervals along the length direction of the movable pipe 300, and the movable part 521 is arranged close to the main body pipe 200. In this way, the locking part 523 needs to be driven by the movable part 521 to realize the action of extending into or exiting the movable pipe 300, so as to prevent the locking part 523 from exiting the movable pipe 300 by itself under the action of the limiting member 400, resulting in the unlocking of the movable pipe 300 on the cab and the cab getting out of control and tipping over.

[0070] Referring to Figure 4 As shown, in some embodiments, a guiding part 524 is arranged at one end of the movable part 521 close to the main body pipe 200, and the guiding part 524 is configured to abut against the main body pipe 200 to drive the movable part 521 to exit the movable pipe 300.

[0071] In the above embodiments, a guiding part 524 is arranged on the movable part 521, and the guiding part 524 has a guiding surface. When the cab descends and resets, the moving rod 100 drives the movable pipe 300 to move towards the main body pipe 200 along the first direction. After the guiding part 524 abuts against the main body pipe 200, the main body pipe 200 slides and abuts against the guiding surface of the guiding part 524, thereby driving the movable part 521 to exit the movable pipe 300 along the second direction.

[0072] Among them, the first direction is perpendicular to the second direction, and the first direction can be the length direction of the movable pipe 300 (or the moving rod 100).

[0073] In this way, the main body pipe 200 can make the movable part 521 exit the movable pipe 300 through the guiding part 524, so that the movement process is smoother and jamming is avoided.

[0074] Exemplarily, the guiding portion 524 may be a wedge-shaped member, and the guiding surface of the guiding portion 524 is a guiding inclined surface. The guiding portion 524 may also be an arc-shaped member, and the guiding surface of the guiding portion 524 is a guiding arc surface. The embodiments of the present application do not impose excessive limitations thereon.

[0075] Referring to Figure 4 As shown, in some embodiments, the guiding portion 524 is a guiding wheel.

[0076] In the above embodiment, the guiding portion 524 is a guiding wheel, the guiding wheel is rotatably arranged on the movable portion 521, and the guiding wheel has a guiding arc surface. In this way, when the moving rod 100 drives the movable tube 300 to move towards the main body tube 200 in the first direction, when the guiding wheel abuts against the main body tube 200, and the main body tube 200 drives the movable portion 521 to move in the second direction along the guiding arc surface of the guiding wheel, and the movable portion 521 and the guiding wheel withdraw from the movable tube 300.

[0077] Referring to Figure 4 As shown, in some embodiments, the connecting portion 522 includes a first connecting portion 5221 and a second connecting portion 5222. The first connecting portion 5221 is rotatably connected to the movable portion 521, the second connecting portion 5222 is rotatably connected to the locking portion 523, the first connecting portion 5221 is rotatably connected to the second connecting portion 5222, and an elastic member is arranged between the first connecting portion 5221 and the second connecting portion 5222.

[0078] Among them, the elastic member may be a torsion spring, and the torsion spring connects the first connecting portion 5221 and the second connecting portion 5222.

[0079] In the above embodiment, both the movable portion 521 and the locking portion 523 are slidably arranged in the installation cavity 511. When the main body tube 200 is separated from the movable portion 521, the main body tube 200 releases the restriction on the movable portion 521. In this way, the first connecting portion 5221 and the second connecting portion 5222 can relatively rotate under the action of the elastic member to drive the movable portion 521 and the locking portion 523 to slide in the installation cavity 511, so that the movable portion 521 and the locking portion 523 respectively extend into the movable tube 300.

[0080] In this way, the first connecting portion 5221 and the second connecting portion 5222 drive the movable portion 521 and the locking portion 523 to move, so that the overall movement process is more flexible and the situation of jamming is avoided.

[0081] Specifically, referring to Figure 4As shown, the first connecting portion 5221 and the second connecting portion 5222 are hingedly arranged. One end of the first connecting portion 5221 away from the second connecting portion 5222 is provided with a first waist-shaped hole. A first connecting member is provided on the movable portion 521. The first connecting member is rotatably arranged in the first waist-shaped hole and can slide along the length direction of the first waist-shaped hole, so as to improve the flexibility of the movement between the movable portion 521 and the first connecting portion 5221 and avoid jamming. Similarly, a second waist-shaped hole is provided on the second connecting portion 5222, and a second connecting member is provided on the locking portion 523, which will not be elaborated here.

[0082] Referring Figure 4 and Figure 5 As shown, in some embodiments, the locking assembly 500 further includes a first mounting member 540 and a second mounting member 550. Both the first mounting member 540 and the second mounting member 550 are arranged in the mounting cavity 511. The first connecting portion 5221 is rotatably arranged on the first mounting member 540, and the second connecting portion 5222 is rotatably arranged on the second mounting member 550.

[0083] In the above embodiment, the first mounting member 540 is used to mount the first connecting portion 5221 and plays a role in supporting the first connecting portion 5221. The second mounting member 550 is used to mount the second connecting portion 5222 and plays a role in supporting the second connecting portion 5222, so as to improve the movement stability of the first connecting portion 5221 and the second connecting portion 5222.

[0084] In this way, under the action of the elastic member, the first connecting portion 5221 rotates relative to the first mounting member 540 to drive the movable portion 521 to slide, and the second connecting portion 5222 rotates relative to the second mounting member 550 to drive the locking portion 523 to slide, and the overall movement is more stable.

[0085] When the movable portion 521 exits the movable tube 300 under the action of the main body tube 200, the movable portion 521 slides in the mounting cavity 511 and drives the first connecting portion 5221 to rotate. The first connecting portion 5221 drives the second connecting portion 5222 to rotate and compresses or stretches the elastic member. The second connecting portion 5222 drives the locking portion 523 to move so that the locking portion 523 exits the movable tube 300.

[0086] In this way, by supporting the first connecting portion 5221 with the first mounting member 540 and supporting the second connecting portion 5222 with the second mounting member 550, the stability of the overall movement is ensured.

[0087] Further, referring Figure 4As shown, the first mounting member 540 is rotatably connected to the middle region of the first connecting portion 5221, and the movable portion 521 and the second connecting portion 5222 are respectively rotatably connected to the two ends of the first connecting portion 5221. The second mounting member 550 is rotatably connected to the middle region of the second connecting portion 5222, and the locking portion 523 and the first connecting portion 5221 are respectively rotatably connected to the two ends of the second connecting portion 5222, so as to improve the stability of the overall structure movement.

[0088] Referring to Figure 4 and Figure 5 As shown, in some embodiments, the installation cavity 511 includes a first installation cavity 5111, a second installation cavity 5112 and a third installation cavity 5113 that are sequentially communicated. The first installation cavity 5111, the second installation cavity 5112 and the third installation cavity 5113 are arranged at intervals along the length direction of the movable tube 300, and the first installation cavity 5111 is arranged close to the main body tube 200.

[0089] The first installation cavity 5111 and the third installation cavity 5113 are communicated with the inner cavity of the movable tube 300. The movable portion 521 is arranged in the first installation cavity 5111, the connecting portion 522 and the elastic member are arranged in the second installation cavity 5112, and the locking portion 523 is arranged in the third installation cavity 5113.

[0090] In the above embodiments, by arranging the movable portion 521, the connecting portion 522 and the locking portion 523 in the first installation cavity 5111, the second installation cavity 5112 and the third installation cavity 5113 respectively, mutual interference during movement is avoided, thereby improving stability.

[0091] Furthermore, referring to Figure 4 and Figure 5 As shown, the movable portion 521 is slidably arranged in the first installation cavity 5111. A first through hole 310 is formed in the movable tube 300, and the first through hole 310 is correspondingly communicated with the first installation cavity 5111, so that the movable portion 521 can enter or exit the movable tube 300 through the first through hole 310. The locking portion 523 is slidably arranged in the third installation cavity 5113. A second through hole 320 is formed in the movable tube 300, and the second through hole 320 is correspondingly communicated with the third installation cavity 5113, so that the locking portion 523 can enter or exit the movable tube 300 through the second through hole 320.

[0092] Referring to Figure 4 and Figure 5 As shown, both the first mounting member 540 and the second mounting member 550 are arranged in the second installation cavity 5112, so that the first connecting portion 5221 and the second connecting portion 5222 are rotatably arranged in the second installation cavity 5112.

[0093] Referring to Figures 4 to 7As shown, when lifting in the cab, the moving rod 100 drives the limiting member 400 to abut against the end of the movable tube 300, and drives the movable tube 300 to move away from the main body tube 200 until the main body tube 200 is away from the first through hole 310. In this way, the connecting portion 522 can drive the movable portion 521 to enter the movable tube 300 through the first through hole 310 under the action of the elastic member, and drive the locking portion 523 to enter the movable tube 300 through the second through hole 320, so that the locking portion 523 plays a role in restricting the movement of the limiting member 400.

[0094] Referring to Figures 4 to 7 As shown, when the cab descends and resets, the moving rod 100 drives the movable tube 300 to move towards the main body tube 200. The main body tube 200 abuts against the guiding portion 524 on the movable portion 521, and drives the movable portion 521 to exit the movable tube 300 through the first through hole 310, and the main body tube 200 blocks the first through hole 310 to prevent the movable portion 521 from popping out under the action of the elastic member. In this way, the movable portion 521 drives the locking portion 523 to enter the movable tube 300 through the second through hole 320 through the connecting portion 522, so that the locking portion 523 releases the restriction on the limiting member 400.

[0095] Referring to Figure 3 、 Figure 6 and Figure 7 As shown, in some embodiments, a guiding and sliding member 410 is provided on the limiting member 400. The guiding and sliding member 410 is located between the limiting member 400 and the movable tube 300 and is slidably connected to the movable tube 300.

[0096] In the above embodiment, the limiting member 400 is connected to the movable tube 300 through the guiding and sliding member 410. In this way, the guiding and sliding member 410 is used to support the displacement of the limiting member 400, ensuring the stable movement of the limiting member 400.

[0097] Exemplarily, the guiding and sliding member 410 is an annular member sleeved on the limiting member 400. The outer surface of the guiding and sliding member 410 forms a slidable abutment with the inner wall of the movable tube 300. When the limiting member 400 moves up and down, the guiding and sliding member 410 slides relative to the movable tube 300 along with the up and down movement of the limiting member 400. The guiding and sliding member 410 is used to support the displacement of the limiting member 400, ensuring the stable movement of the limiting member 400.

[0098] Exemplarily, the guiding and sliding member 410 can be made of wear-resistant and high-strength metal materials or ceramic materials. Since the limiting member 400 itself has a relatively high displacement frequency and large wear, by providing the guiding and sliding member 410, on the one hand, it can enhance the sliding property and stability of the limiting member 400 in the movable tube 300. On the other hand, under the long-term displacement wear of the limiting member 400, the normal operation of the limiting member 400 can also be maintained by replacing the guiding and sliding member 410. This setting is also beneficial to reducing the maintenance cost.

[0099] It should be noted that the sliding friction between the sliding guide member 410 and the inner wall of the movable tube 300, and between the limiting member 400 and the inner wall of the movable tube 300 can be reduced through certain structural designs to further improve the smooth sliding effect. For example, industrial lubricant can be applied to the inner wall of the movable tube 300, or the surface smoothness of the sliding guide member 410 can be improved by polishing, coating, or using low-friction materials. The embodiments of the present application do not make absolute limitations in this regard.

[0100] Refer to Figure 3 As shown, a lifting lug 330 is provided on the movable tube 300, and the lifting lug 330 is used to connect with the cab.

[0101] Refer to Figure 1 and Figure 2 As shown, the lifting device provided by the embodiments of the present application includes a device body 20, a driving assembly 30, and a suspension mechanism 10 as described above. The driving assembly 30 is disposed on the device body 20, and at least a part of the driving assembly 30 extends into the main body tube 200 of the suspension mechanism 10 and is connected to the moving rod 100 of the suspension mechanism 10. The driving assembly 30 is used to drive the moving rod 100 of the suspension mechanism 10 to move along the main body tube 200 of the suspension mechanism 10.

[0102] In the embodiments of the present application, since the lifting device adopts the suspension mechanism 10 in the above embodiments, accordingly, it also has the advantages and benefits brought by the above suspension mechanism 10, which will not be elaborated here anymore.

[0103] Among them, the main body tube 200 is disposed on the device body 20, a part of the driving assembly 30 is located inside the main body tube 200, and is connected to the moving rod 100 inside the main body tube 200.

[0104] The vehicle provided by the embodiments of the present application includes a vehicle body and the above lifting device, and the lifting device is disposed on the vehicle body.

[0105] Among them, the vehicle body includes a cab and a body, the lifting device is disposed between the cab and the body, the movable tube 300 of the lifting device is connected to the cab, and the device body 20 of the lifting device is connected to the body.

[0106] After considering the specification and practicing the content disclosed herein, those skilled in the art will easily think of other implementation schemes of the present application. The present application aims to cover any variations, uses, or adaptive changes of the present application, and these variations, uses, or adaptive changes follow the general principles of the present application and include the common general knowledge or conventional technical means in the technical field not disclosed in the present application. The specification and embodiments are only regarded as exemplary, and the true scope and spirit of the present application are pointed out by the following claims.

[0107] It should be understood that the present application is not limited to the exact structures described above and shown in the drawings, and various modifications and changes can be made without departing from its scope. The scope of the present application is only limited by the appended claims.

Claims

1. A suspension mechanism, characterized in that, It includes a moving rod (100), a main body tube (200), a movable tube (300), a limiting member (400) and a locking assembly (500); The moving rod (100) is arranged inside the main body tube (200). The moving rod (100) is used to connect with the driving assembly (30) of the lifting device. At least part of the main body tube (200) is slidably arranged inside the movable tube (300). The limiting member (400) is slidably arranged inside the movable tube (300) and is connected with the moving rod (100); The locking assembly (500) is arranged on the movable tube (300) and is correspondingly arranged with the main body tube (200). Part of the locking assembly (500) is configured to extend into the movable tube (300) and abut against the limiting member (400) when the moving rod (100) drives the limiting member (400) to abut against the end of the movable tube (300) and drives the movable tube (300) away from the main body tube (200), so as to limit the movement of the limiting member (400) relative to the movable tube (300); when the moving rod (100) drives the movable tube (300) to approach the main body tube (200), it withdraws from the movable tube (300) under the action of the main body tube (200) to release the restriction on the limiting member (400).

2. The suspension mechanism according to claim 1, characterized in that, The locking assembly (500) includes a support member (510), a locking member (520) and an elastic member; The support member (510) is arranged on the movable tube (300). The support member (510) has an installation cavity (511). The installation cavity (511) communicates with the inner cavity of the movable tube (300). The locking member (520) is slidably arranged inside the installation cavity (511). The elastic member is arranged inside the installation cavity (511). The elastic member is connected with the locking member (520); The locking member (520) is configured to extend into the movable tube (300) and abut against the limiting member (400) under the action of the elastic member, so as to limit the movement of the limiting member (400) relative to the movable tube (300); under the action of the main body tube (200), it withdraws from the movable tube (300) and makes the elastic member in an energy storage state to release the restriction on the limiting member (400).

3. The suspension mechanism according to claim 2, wherein The locking member (520) includes a movable part (521), a connecting part (522) and a locking part (523). The movable part (521) and the locking part (523) are both slidably arranged inside the installation cavity (511). The movable part (521) is correspondingly arranged with the main body tube (200). The connecting part (522) connects the movable part (521) and the locking part (523). The elastic member is connected with the connecting part (522); The locking part (523) is configured to extend into or withdraw from the movable tube (300) under the drive of the movable part (521), so as to restrict the movement of the limiting part (400) or release the restriction on the limiting part (400).

4. The suspension mechanism according to claim 3, wherein, A guiding part (524) is arranged at one end of the movable part (521) close to the main body tube (200), and the guiding part (524) is configured to abut against the main body tube (200) to drive the movable part (521) to withdraw from the movable tube (300).

5. The suspension mechanism according to claim 3, characterized in that The connecting part (522) includes a first connecting part (5221) and a second connecting part (5222). The first connecting part (5221) is rotatably connected to the movable part (521), the second connecting part (5222) is rotatably connected to the locking part (523), the first connecting part (5221) is rotatably connected to the second connecting part (5222), and the elastic part is arranged between the first connecting part (5221) and the second connecting part (5222).

6. The suspension mechanism according to claim 5, characterized in that The locking assembly (500) further includes a first mounting member (540) and a second mounting member (550). Both the first mounting member (540) and the second mounting member (550) are arranged in the mounting cavity (511). The first connecting part (5221) is rotatably arranged on the first mounting member (540), and the second connecting part (5222) is rotatably arranged on the second mounting member (550).

7. The suspension mechanism according to any one of claims 3 to 6, characterized in that, The mounting cavity (511) includes a first mounting cavity (5111), a second mounting cavity (5112) and a third mounting cavity (5113) that are sequentially communicated. The first mounting cavity (5111), the second mounting cavity (5112) and the third mounting cavity (5113) are arranged at intervals along the length direction of the movable tube (300), and the first mounting cavity (5111) is arranged close to the main body tube (200). The first mounting cavity (5111) and the third mounting cavity (5113) are communicated with the inner cavity of the movable tube (300). The movable part (521) is arranged in the first mounting cavity (5111), the connecting part (522) is arranged in the second mounting cavity (5112), and the locking part (523) is arranged in the third mounting cavity (5113).

8. The suspension mechanism according to any one of claims 1 to 6, characterized in that, A guiding and sliding part (410) is arranged on the limiting part (400). The guiding and sliding part (410) is located between the limiting part (400) and the movable tube (300) and is slidably connected to the movable tube (300).

9. A lifting device, characterized in that, It includes a device body (20), a driving assembly (30) and the suspension mechanism (10) according to any one of claims 1 to 8. The driving component (30) is arranged on the device body (20), at least part of the driving component (30) extends into the main body pipe (200) of the suspension mechanism (10) and is connected to the moving rod (100) of the suspension mechanism (10), and the driving component (30) is used to drive the moving rod (100) of the suspension mechanism (10) to move along the main body pipe (200) of the suspension mechanism (10).

10. A vehicle, characterized in that, Comprising a vehicle body and a lifting device as claimed in claim 9, the lifting device being arranged on the vehicle body.

Images