Telescopic device and handling equipment

Abstract

The embodiment of the present application provides a telescopic device and a handling device. The telescopic device includes: a first driving mechanism and a flexible push rod, the flexible push rod is connected to a climbing device, and the first driving mechanism is used to drive the flexible push rod to move, so as to push the climbing device to connect with the shelf through the flexible push rod, or to release the connection between the climbing device and the shelf. In the embodiment of the present application, in the process of the flexible push rod of the telescopic device pushing the climbing device to connect with the shelf, the deformation of the flexible push rod can solve the problem of uncertain telescopic stroke of the climbing device caused by the installation accuracy error of the shelf, so that the connection between the climbing device and the shelf can be fully in place, thereby improving the connection stability between the climbing device and the shelf.

Description

Technical Field

[0001] The present application belongs to the field of warehousing technology, and specifically relates to a telescopic device and a handling equipment. Background Art

[0002] With the development of technology, warehouses generally use shelves to store goods. The shelves can be arranged in multiple layers, and the goods or boxes loaded with goods are stored on each layer of the shelves. Therefore, handling equipment that can pick up goods on each layer of the shelves has also emerged. Generally, the handling equipment may include a telescopic device and a climbing device. The climbing device can climb along the shelf, and the telescopic device is used to drive the climbing device to connect or separate from the shelf.

[0003] However, due to manufacturing errors or installation accuracy errors of the shelves, the climbing device and the shelf are not completely connected when the telescopic device pushes the climbing device to engage with the shelf. In this way, the handling equipment is prone to noise and vibration when climbing along the shelf, which not only reduces the safety of the handling equipment in storing and retrieving goods, but also greatly reduces the operator's experience of using the handling equipment. Summary of the invention

[0004] The present application aims to provide a telescopic device and a handling device to solve the problems of high noise and vibration of existing handling equipment.

[0005] In order to solve the above technical problems, this application is implemented as follows:

[0006] In a first aspect, the present application discloses a telescopic device, which includes: a first driving mechanism and a flexible push rod, wherein the flexible push rod is connected to a climbing device, and the first driving mechanism is used to drive the flexible push rod to move so as to push the climbing device to connect with the shelf through the flexible push rod, or to release the connection between the climbing device and the shelf.

[0007] Optionally, the telescopic device also includes a driving flange, which is connected to the output end of the first driving mechanism, and the flexible push rod is movably connected to the driving flange. The first driving mechanism is used to drive the driving flange to rotate, so as to drive the flexible push rod to move through the rotation of the driving flange.

[0008] Optionally, the flexible push rod is hinged to the driving flange.

[0009] Optionally, a first hinge hole is provided on the flexible push rod;

[0010] The telescopic device also includes a first hinge shaft, which is passed through the first hinge hole and connected to the driving flange, and the flexible push rod is hinged to the driving flange through the first hinge shaft.

[0011] Optionally, the telescopic device is further provided with a limit block, which is connected to the driving flange and close to the connection between the flexible push rod and the driving flange, and the limit block is used to limit the rotation of the flexible push rod.

[0012] Optionally, the limit block and the driving flange are separate structures, and the connection method between the limit block and the driving flange includes at least one of a clamping connection, a fastener connection, and an adhesive connection;

[0013] Alternatively, the limiting block and the driving flange are an integrally formed structure.

[0014] Optionally, the flexible push rod comprises: a first push rod, an elastic member and a second push rod which are arranged in sequence; wherein,

[0015] One end of the first push rod is connected to the driving flange, one end of the second push rod is movably connected to the other end of the first push rod, and the other end of the second push rod is connected to the climbing device;

[0016] The elastic member is connected between the first push rod and the second push rod, and is used to provide a spring thrust to the second push rod so as to push the climbing device connected to the second push rod to connect with the shelf.

[0017] Optionally, the flexible push rod further includes a floating piston;

[0018] The other end of the first push rod is provided with a slide groove, one end of the floating piston is connected in the slide groove and can slide along the slide groove, the other end of the floating piston is connected to one end of the second push rod, and the second push rod is movably connected to the first push rod through the floating piston.

[0019] Optionally, the elastic member is a floating spring sleeved on the floating piston.

[0020] Optionally, the slide groove has an opening on one side close to the second push rod, and a limiting sleeve is further provided in the slide groove at a position close to the opening, and the limiting sleeve is used to limit the sliding of the floating piston.

[0021] Optionally, the flexible push rod is further provided with a second hinge hole, and the second hinge hole is used for a second hinge shaft to pass through so as to be hinged to the climbing device through the second hinge shaft.

[0022] Optionally, there are two flexible push rods, and both of the two flexible push rods are connected to the first driving mechanism and are located on both sides of the first driving mechanism.

[0023] In a second aspect, the present application further discloses a transporting device, which comprises the telescopic device described in any one of the above items.

[0024] In the embodiment of the present application, the first driving mechanism can drive the flexible push rod to extend and retract, so as to extend and retract the climbing device through the extension and retraction of the flexible push rod. Since the flexible push rod itself can achieve a certain degree of telescopic deformation, therefore, in the process of the flexible push rod pushing the climbing device to connect with the shelf, the problem of uncertainty in the telescopic stroke of the climbing device caused by the installation accuracy error of the shelf can be solved through the deformation of the flexible push rod, so that the connection between the climbing device and the shelf can be completely in place, and the connection stability between the climbing device and the shelf is improved. In this way, the handling equipment can reduce the noise and vibration generated by the operation of the handling equipment during the climbing process along the shelf, which will not only reduce the safety of the handling equipment in storing and retrieving goods, but also greatly reduce the operator's experience of using the handling equipment.

[0025] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0027] Figure 1 It is a structural schematic diagram of a telescopic device described in an embodiment of the present application;

[0028] Figure 2 It is a schematic diagram of the structure of the flexible push rod in the telescopic device described in the embodiment of the present application.

[0029] Figure numerals: 121 - first driving mechanism, 122 - flexible push rod, 1221 - first push rod, 1222 - floating piston, 1223 - elastic member, 1224 - second push rod, 1225 - slide groove, 1226 - first hinge hole, 1227 - limiting sleeve, 1228 - second hinge hole, 123 - driving flange, 124 - limiting block, 125 - first hinge shaft. DETAILED DESCRIPTION

[0030] Embodiments of the present invention will be described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0031] The term "first" or "second" in the specification and claims of the present application may include one or more of the features explicitly or implicitly. In the description of the present invention, unless otherwise specified, "plurality" means two or more. In addition, "and / or" in the specification and claims means at least one of the connected objects, and the character " / " generally means that the objects connected before and after are in an "or" relationship.

[0032] In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “clockwise”, “counterclockwise”, “axial”, “radial”, “circumferential”, etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0033] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0034] With the development of intelligent technologies such as the Internet of Things, artificial intelligence, and big data, the demand for transforming and upgrading the traditional logistics industry by using these intelligent technologies has become increasingly strong, and intelligent logistics (ILS, Intelligent Logistics System) has become a research hotspot in the field of logistics. Intelligent logistics uses artificial intelligence, big data, and various information sensors, radio frequency identification technology, global positioning system (GPS, Global Positioning System) and other Internet of Things devices and technologies, which are widely used in basic activities such as material transportation, warehousing, distribution, packaging, loading and unloading, and information services, to achieve intelligent analysis and decision-making, automated operation, and efficient optimization management of the material management process. Internet of Things technologies include sensor equipment, radio frequency identification (RFID, Radio Frequency Identification) technology, laser infrared scanning, infrared sensing recognition, etc. The Internet of Things can effectively connect materials in logistics with the network, monitor materials in real time, and sense environmental data such as humidity and temperature in the warehouse to ensure the storage environment of materials. Through big data technology, all data in logistics can be sensed and collected, uploaded to the data layer of the information platform, and filtered, mined, analyzed, and finally provide accurate data support for business processes (such as transportation, warehousing, storage, picking, packaging, sorting, outbound, inventory, distribution, etc.). The application direction of artificial intelligence in logistics can be roughly divided into two types: 1) Intelligent equipment such as unmanned trucks, automatic guided vehicles (AGVs), autonomous mobile robots (AMRs), forklifts, shuttles, stackers, unmanned delivery vehicles, drones, service robots, robotic arms, smart terminals, etc., which are enabled by artificial intelligence technology, replace some manual labor; 2) Software systems such as transportation equipment management systems, warehouse management, equipment scheduling systems, and order distribution systems driven by technologies or algorithms such as computer vision, machine learning, and operations optimization improve labor efficiency. With the research and progress of smart logistics, this technology has been applied in many fields, such as retail and e-commerce, electronic products, tobacco, medicine, industrial manufacturing, footwear, textiles, and food.

[0035] Reference Figure 1 and Figure 2 , shows a schematic diagram of the structure of the telescopic device described in the application embodiment. Figure 1 and Figure 2As shown, the telescopic device 12 may include a first driving mechanism 121 and a flexible push rod 122. The flexible push rod 122 is connected to the climbing device. The first driving mechanism 121 can be used to drive the flexible push rod 122 to move to push the rigid push rod 112 to move, so as to push the climbing device to connect with the shelf through the flexible push rod 122, or to release the connection between the climbing device and the shelf.

[0036] In a specific application, the first driving mechanism 121 can drive the flexible push rod 122 to extend and retract, so as to extend and retract the climbing device through the extension and retraction of the flexible push rod 122. Since the flexible push rod 122 itself can achieve a certain degree of telescopic deformation, therefore, in the process of the flexible push rod 122 pushing the climbing device to connect with the shelf, the deformation of the flexible push rod 122 can solve the problem of uncertainty in the telescopic stroke of the climbing device caused by the installation accuracy error of the shelf, so that the connection between the climbing device and the shelf can be completely in place, and the connection stability between the climbing device and the shelf is improved. In this way, the handling equipment can reduce the extra noise and vibration generated by the operation of the handling equipment during the climbing process along the shelf, which will not only reduce the safety of the handling equipment in storing and retrieving goods, but also greatly reduce the operator's experience of using the handling equipment.

[0037] For example, the first driving mechanism 121 may specifically include a motor and a reducer connected to the motor, etc. The embodiment of the present application may not limit the specific structure of the first driving mechanism 121.

[0038] In a specific application, the telescopic device can be located between two groups of climbing devices arranged along a first direction, and the telescopic device can be used to drive the two groups of climbing devices to telescope along the first direction. In a specific application, when the handling equipment moves between the shelves and prepares to climb along the shelves, the telescopic device can drive the two groups of climbing devices to extend so that the two groups of climbing devices can be connected to the shelves respectively, so that the climbing devices can climb along the shelves. When the handling equipment completes the operation of picking up and placing goods on the shelves and descends to the ground along the shelves, the telescopic device can drive the two groups of climbing devices to retract into the equipment body to avoid collision between the climbing devices and other equipment during the movement of the handling equipment, thereby improving the safety of the climbing devices.

[0039] like Figure 1 As shown, there are two flexible push rods, both of which are connected to the first driving mechanism and are located on both sides of the first driving mechanism, wherein one flexible push rod can be used to connect with a group of climbing devices to drive the two groups of climbing devices to extend and retract synchronously, thereby improving the operating efficiency of the retracting device.

[0040] like Figure 1As shown, the telescopic device may further include a driving flange 123, the driving flange 123 is connected to the output end of the first driving mechanism 121, the flexible push rod 122 is movably connected to the driving flange 123, and the first driving mechanism 121 may be used to drive the driving flange 123 to rotate, so as to drive the flexible push rod 122 to move through the rotation of the driving flange 123. In a specific application, the driving flange 123 may play a role in transmission, and by connecting the flexible push rod 122 to the driving flange 123, the rotation of the driving flange 123 may be converted into the linear motion of the flexible push rod 122, so as to drive the climbing device to telescope through the linear motion of the flexible push rod 122. In particular, by providing the driving flange 123, multiple flexible push rods 122 may also be connected to the driving flange 123, so as to drive multiple flexible push rods 122 to move synchronously through the rotation of the driving flange 123, so as to achieve the synchronous telescopic of multiple climbing devices.

[0041] Optionally, the flexible push rod 122 is hinged to the driving flange 123 so that one end of the flexible push rod 122 can rotate relative to the driving flange 123 to convert the rotation of the driving flange 123 into a linear motion of the flexible push rod 122 .

[0042] like Figure 2 As shown, a first hinge hole 1226 is provided on the flexible push rod 122; the telescopic device may also include a first hinge shaft 125, the first hinge shaft 125 is passed through the first hinge hole 1226 and is connected to the driving flange 123, and the flexible push rod 122 is hinged to the driving flange 123 through the first hinge shaft 125 to achieve the hinge between the flexible push rod 122 and the driving flange 123.

[0043] like Figure 1 As shown, the telescopic device 12 also includes a limit block 124 ; the limit block 124 is connected to the driving flange 123 and is close to the connection between the flexible push rod 122 and the driving flange 123 , and the limit block 124 can be used to limit the rotation of the flexible push rod 122 .

[0044] In a specific application, when the first driving mechanism 121 drives the driving flange 123 to rotate, the two flexible push rods 122 can be driven to extend or retract. After the telescopic movement of the flexible push rod 122 reaches the target stroke, the limit block 124 can abut against the flexible push rod 122 to limit the movement of the flexible push rod 122, so as to prevent the movement stroke of the flexible push rod 122 from exceeding the target stroke, thereby improving the telescopic safety of the flexible push rod 122.

[0045] For example, during the extension of the flexible push rod 122, after the extension stroke of the flexible push rod 122 reaches the designed target stroke, the limit block 124 can abut against the flexible push rod 122, and the flexible push rod 122 will not be able to move beyond the stroke, causing the climbing device to retract. In this way, the connection stability between the climbing device and the shelf can be improved.

[0046] In some optional embodiments of the present application, the limit block 124 and the driving flange 123 are separate structures, and the connection method between the limit block 124 and the driving flange 123 includes at least one of clamping, fastener connection, and bonding. In a specific application, when the limit block 124 and the driving flange 123 are separate structures, the position of the limit block 124 on the driving flange 123 can be set according to actual conditions, which greatly improves the layout flexibility of the limit block 124.

[0047] Alternatively, the stopper 124 and the drive flange 123 may be an integrally formed structure, so that the operation of separately processing the stopper 124 and the drive flange 123 can be avoided, simplifying the processing technology. Moreover, the connection reliability between the stopper 124 and the drive flange 123 can be improved.

[0048] like Figure 2 As shown, the flexible push rod 122 may specifically include: a first push rod 1221, an elastic member 1223 and a second push rod 1224 which are arranged in sequence; wherein, one end of the first push rod 1221 is connected to the driving flange 123, one end of the second push rod 1224 is movably connected to the other end of the first push rod 1221, and the other end of the second push rod 1224 is connected to the climbing device; the elastic member 1223 is connected between the first push rod 1221 and the second push rod 1224, and the elastic member 1223 can be used to provide a spring thrust to the second push rod 1224, so as to push the climbing device connected to the second push rod 1224 to connect with the shelf, and enable the climbing device and the shelf to remain in a stably connected state, so as to reduce the vibration and noise generated by the climbing device during the climbing process along the shelf.

[0049] like Figure 2 As shown, the flexible push rod 122 can also include a floating piston 1222; a slide groove 1225 is provided at the other end of the first push rod 1221, one end of the floating piston 1222 is connected in the slide groove 1225 and can slide along the slide groove 1225, and the other end of the floating piston 1222 is connected to one end of the second push rod 1224, and the second push rod 1224 is movably connected to the first push rod 1221 through the floating piston 1222.

[0050] In a specific application, during the telescopic movement of the flexible push rod 122, the sliding of the floating piston 1222 along the slide groove 1225 can compensate for the problem of uncertainty in the telescopic stroke of multiple climbing devices caused by the installation accuracy error of the shelf 200, so that each climbing device can be reliably connected to the shelf. For example, when the telescopic stroke of the flexible push rod 122 needs to be shortened due to the installation error of the shelf, the floating piston 1222 can slide toward the first push rod 1221. For another example, when the telescopic stroke of the flexible push rod 122 needs to be extended due to the installation error of the shelf, the floating piston 1222 can slide toward the second push rod 1224. After the climbing device is connected to the shelf, the compression of the elastic member 1223 can provide a spring thrust to the climbing device, thereby achieving stable engagement between the climbing device and the shelf.

[0051] Optionally, the elastic member 1223 is a floating spring sleeved on the floating piston. When the elastic member 1223 is a floating spring, the floating spring can be directly sleeved on the floating piston 1222. The structure is simple, and the elastic force is relatively uniform and stable.

[0052] For example, the elastic member 1223 may also be a spring or other component that can generate elastic force. The embodiment of the present application may not limit the specific type of the elastic member 1223.

[0053] like Figure 2 As shown, the slide groove 1225 has an opening on one side close to the second push rod 1224 , and a limiting sleeve 1227 is also provided in the slide groove 1225 near the opening. The limiting sleeve 1227 can be used to limit the sliding of the floating piston 1222 to prevent the floating piston 1222 from escaping from the opening of the slide groove 1225 .

[0054] like Figure 2 As shown, the flexible push rod 122 is also provided with a second hinge hole 1228, and the second hinge hole 1228 can be used for passing a second hinge shaft to be hinged to the climbing device through the second hinge shaft, so as to further compensate for the installation error of the shelf and realize a reliable connection between the climbing device and the shelf.

[0055] In the embodiment of the present application, the flexible push rod 122 in the telescopic device 12 can eliminate the problem of inconsistent travel of multiple climbing devices caused by shelf installation errors. The floating piston 1222 structure in the flexible push rod 122 absorbs the dimensional error of shelf installation in the lane width direction and provides stable thrust. In a specific application, a rigid push rod can also be set between the flexible push rod 122 and the climbing device, and the rigid push rod can ensure that multiple climbing devices can be pushed out roughly synchronously and solve the problem of inconsistent spacing caused by shelf installation errors in the lane depth direction. Through the coordinated action of the flexible push rod 122 and the rigid push rod, the climbing device can be pushed into place stably and the preparation before climbing is completed.

[0056] In some optional embodiments of the present application, the climbing device is provided with an in-place sensor, which can be used to detect the connection status of the climbing device and the shelf. Moreover, in order to facilitate the detection of the connection status of each climbing device and the shelf, each climbing device can be configured with an in-place sensor.

[0057] In a specific application, after the first driving mechanism 121 rotates to the target code disk value, the in-place sensor can perform a secondary confirmation, and after the in-place sensor confirms that the climbing device is fully engaged with the shelf, the climbing device starts the climbing operation. In this way, on the one hand, the safety of the climbing device during the climbing process can be improved, and on the other hand, the vibration and noise of the climbing device during the climbing process can be further reduced.

[0058] In summary, the telescopic device described in the embodiment of the present application can at least include the following advantages:

[0059] In the embodiment of the present application, the first driving mechanism can drive the flexible push rod to extend and retract, so as to extend and retract the climbing device through the extension and retraction of the flexible push rod. Since the flexible push rod itself can achieve a certain degree of telescopic deformation, therefore, in the process of the flexible push rod pushing the climbing device to connect with the shelf, the problem of uncertainty in the telescopic stroke of the climbing device caused by the installation accuracy error of the shelf can be solved through the deformation of the flexible push rod, so that the connection between the climbing device and the shelf can be completely in place, and the connection stability between the climbing device and the shelf is improved. In this way, the handling equipment can reduce the noise and vibration generated by the operation of the handling equipment during the climbing process along the shelf, which will not only reduce the safety of the handling equipment in storing and retrieving goods, but also greatly reduce the operator's experience of using the handling equipment.

[0060] An embodiment of the present application further provides a transport device, which may specifically include the telescopic device described in any of the above embodiments.

[0061] It should be noted that in the embodiment of the present application, the structure of the telescopic device is the same as the structure of the telescopic device described in any of the above embodiments, and its beneficial effects are also similar, which will not be repeated here.

[0062] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0063] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A telescopic device, characterized in that: The telescopic device includes: a first driving mechanism and a flexible push rod, the flexible push rod is connected to the climbing device, and the first driving mechanism is used to drive the flexible push rod to move, so as to push the climbing device to connect with the shelf through the flexible push rod, or to release the connection between the climbing device and the shelf.

2. The telescopic device according to claim 1, characterized in that: The telescopic device also includes a driving flange, which is connected to the output end of the first driving mechanism. The flexible push rod is movably connected to the driving flange. The first driving mechanism is used to drive the driving flange to rotate, so as to drive the flexible push rod to move through the rotation of the driving flange.

3. The telescopic device according to claim 2, characterized in that: The flexible push rod is hinged to the driving flange.

4. The telescopic device according to claim 3, characterized in that: The flexible push rod is provided with a first hinge hole; The telescopic device also includes a first hinge shaft, which is passed through the first hinge hole and connected to the driving flange, and the flexible push rod is hinged to the driving flange through the first hinge shaft.

5. The telescopic device according to claim 2, characterized in that: The telescopic device is also provided with a limit block, which is connected to the driving flange and close to the connection between the flexible push rod and the driving flange, and is used to limit the rotation of the flexible push rod.

6. The telescopic device according to claim 5, characterized in that: The limit block and the driving flange are separate structures, and the connection method between the limit block and the driving flange includes at least one of a clamping connection, a fastener connection, and an adhesive connection; Alternatively, the limiting block and the driving flange are an integrally formed structure.

7. The telescopic device according to claim 2, characterized in that: The flexible push rod comprises: a first push rod, an elastic member and a second push rod arranged in sequence; wherein, One end of the first push rod is connected to the driving flange, one end of the second push rod is movably connected to the other end of the first push rod, and the other end of the second push rod is connected to the climbing device; The elastic member is connected between the first push rod and the second push rod, and is used to provide a spring thrust to the second push rod so as to push the climbing device connected to the second push rod to connect with the shelf.

8. The telescopic device according to claim 7, characterized in that: The flexible push rod also includes a floating piston; The other end of the first push rod is provided with a slide groove, one end of the floating piston is connected in the slide groove and can slide along the slide groove, the other end of the floating piston is connected to one end of the second push rod, and the second push rod is movably connected to the first push rod through the floating piston.

9. The telescopic device according to claim 8, characterized in that: The elastic member is a floating spring sleeved on the floating piston.

10. The telescopic device according to claim 8, characterized in that: The slide groove has an opening on one side close to the second push rod, and a limiting sleeve is arranged in the slide groove at a position close to the opening, and the limiting sleeve is used to limit the sliding of the floating piston.

11. The telescopic device according to claim 1, characterized in that: The flexible push rod is also provided with a second hinge hole, and the second hinge hole is used for the second hinge shaft to pass through, so as to be hinged with the climbing device through the second hinge shaft.

12. The telescopic device according to claim 1, characterized in that: The number of the flexible push rods is two, and both of the two flexible push rods are connected to the first driving mechanism and are located on both sides of the first driving mechanism.

13. A handling device, characterized in that: The handling equipment comprises the telescopic device according to any one of claims 1 to 12.

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