Conveying device

Abstract

The utility model discloses conveying equipment which comprises a connecting device, a conveying belt and a plurality of machine frames, each machine frame is provided with a telescopic part, the machine frames are sequentially distributed in the telescopic direction of the telescopic parts, the two opposite ends of every two adjacent machine frames are hinged through the connecting device, and the connecting device is connected with the conveying belt. The conveying belt is connected to the multiple racks. According to the scheme, the problems of low use efficiency and the like of conveying equipment in related technologies can be solved.

Description

Technical Field

[0001] The utility model relates to the technical field of conveying equipment, in particular to a conveying equipment. Background Art

[0002] Conveyors are widely used in various fields, including mining, metallurgy, and building materials, and come in a wide variety of forms depending on site needs. However, existing conveyors are unable to meet the needs of special occasions and fields. For example, in open-pit mining, conveyors are arranged parallel to the working line and must be frequently moved laterally, either synchronously or asynchronously, following the working surface. Because conveyors are large equipment with relatively large size and weight, they need to be disassembled, moved to the appropriate location, and then reassembled when moving them laterally. However, this method of lateral conveyor movement is relatively complex and time-consuming, resulting in low conveyor efficiency. Utility Model Content

[0003] The utility model discloses a conveying device to solve the problem of low utilization efficiency of the conveying device in the related art.

[0004] In order to solve the above technical problems, the utility model is achieved as follows:

[0005] The present application discloses a conveying device, which includes a connecting device, a conveyor belt and multiple frames. The frame has a telescopic part, and the multiple frames are distributed in sequence along the telescopic direction of the telescopic part. The opposite ends of two adjacent frames are hinged by the connecting device, and the conveyor belt is connected to the multiple frames.

[0006] The technical solution adopted by the utility model can achieve the following technical effects:

[0007] The present application configures the conveying equipment to include a connecting device, a conveyor belt and a plurality of frames, wherein the frames are configured to have a telescopic portion, so that the plurality of frames are sequentially distributed along the telescopic direction of the telescopic portion, and the two opposite ends of two adjacent frames are hinged by the connecting device. Therefore, when the conveying equipment is moved laterally, the plurality of frames do not need to be disassembled, but only need to be moved laterally in sequence in accordance with the telescopic portion of the frames, thereby saving time for disassembling and installing the plurality of frames and further improving the utilization efficiency of the conveying equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 This is a schematic diagram of the first conveying device disclosed in an embodiment of the present utility model when extended;

[0009] Figure 2 for Figure 1 Schematic diagram of part of the structure from a bird's-eye view;

[0010] Figure 3 This is a schematic diagram of the first conveying device disclosed in an embodiment of the present utility model when shortened;

[0011] Figure 4 for Figure 3 Schematic diagram of part of the structure from a bird's-eye view;

[0012] Figure 5 is a schematic diagram of the structure of the rack at the starting position when extended;

[0013] Figure 6 for Figure 5 Schematic diagram of part of the structure from a bird's-eye view;

[0014] Figure 7 Schematic diagram of the structure of the rack at the starting position when shortened;

[0015] Figure 8 for Figure 7 Schematic diagram of part of the structure from a bird's-eye view;

[0016] Figure 9 is a schematic diagram of the structure of the rack between the rack at the starting position and the rack at the end position when extended;

[0017] Figure 10 for Figure 9 Schematic diagram of part of the structure from a bird's-eye view;

[0018] Figure 11 Schematic diagram of the structure of the racks between the rack at the starting position and the rack at the end position when shortened;

[0019] Figure 12 for Figure 11 Schematic diagram of part of the structure from a bird's-eye view;

[0020] Figure 13 is a schematic diagram of the structure of the rack at the end position when extended;

[0021] Figure 14 for Figure 13 Schematic diagram of part of the structure from a bird's-eye view;

[0022] Figure 15 Schematic diagram of the structure of the rack at the end when it is shortened;

[0023] Figure 16 for Figure 15 Schematic diagram of part of the structure from a bird's-eye view;

[0024] Figure 17 This is a schematic structural diagram of the connecting device disclosed in an embodiment of the present utility model;

[0025] Figure 18 for Figure 17 A top view of

[0026] Figure 19 This is a schematic diagram of the second conveying device disclosed in an embodiment of the present utility model when extended;

[0027] Figure 20 for Figure 19 Schematic diagram of part of the structure from a bird's-eye view;

[0028] Figure 21 This is a schematic diagram of the second conveying device disclosed in an embodiment of the present utility model when shortened;

[0029] Figure 22 is a schematic diagram of the first end of the first rack moving laterally;

[0030] Figure 23 is a schematic diagram of the second end of the first rack and the first end of the second rack moving laterally;

[0031] Figure 24 is a schematic diagram of the second end of the second rack and the first end of the third rack moving laterally;

[0032] Figure 25 is a schematic diagram of the second end of the third rack and the first end of the fourth rack when they move laterally;

[0033] Figure 26 is a schematic diagram of the second end of the fourth rack and the first end of the fifth rack moving laterally;

[0034] Figure 27 is a schematic diagram of the second end of the fifth rack moving laterally;

[0035] Figure 28 Schematic diagram of the second conveying device when extended.

[0036] Description of reference numerals:

[0037] 100-frame, 101-telescopic part, 102-upper roller, 103-lower roller, 110-first frame, 120-second frame, 130-third frame, 140-fourth frame, 150-fifth frame,

[0038] 200-connecting device, 210-device body, 220-first hinge shaft, 230-second hinge shaft, 240-installation plate, 250-connecting part, 260-first supporting part, 261-third hinge shaft, 270-moving part,

[0039] 300- second support part,

[0040] 400-Conveyor belt. DETAILED DESCRIPTION

[0041] To make the objectives, technical solutions, and advantages of the present invention more clearly apparent, the following will provide a clear and complete description of the technical solutions of the present invention in conjunction with specific embodiments of the present invention and the corresponding drawings. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without inventive effort are also within the scope of protection of the present invention.

[0042] The technical solutions disclosed in various embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0043] Please refer to Figures 1 to 28 An embodiment of the present utility model discloses a conveying device, which includes a connecting device 200, a conveyor belt 400 and a plurality of racks 100.

[0044] The frame 100 has a telescopic portion 101 , which can be telescoped so that the frame 100 can be extended or shortened along the telescopic direction of the telescopic portion 101 .

[0045] It should be noted that the telescopic portion 101 may have a locking structure. When the telescopic portion 101 needs to be telescoped, the locking structure may be in an unlocked state so that the telescopic portion 101 can be telescoped. When the telescopic portion 101 does not need to be telescoped, the locking structure may be in a locked state, and the telescopic portion 101 cannot be telescoped. The telescopic portion 101 may be a nested telescopic structure. The telescopic portion 101 may be a hydraulic telescopic mechanism, a pneumatic telescopic mechanism, etc. The embodiment of the present application does not limit the specific structure of the telescopic portion 101. Each rack 100 may have one or more telescopic portions 101. The embodiment of the present application does not specifically limit the number of telescopic portions 101 of each rack 100.

[0046] The multiple racks 100 are distributed in sequence along the telescopic direction of the telescopic portion 101. The two opposite ends of two adjacent racks 100 are hinged by a connecting device 200. The conveyor belt 400 is connected to the multiple racks 100. The conveyor belt 400 can rotate cyclically to realize the transportation of goods.

[0047] The two opposite ends of two adjacent frames 100 are hinged by a connecting device 200, so that either end of the frame 100 can swing relative to the other end. The rotation axis of the frame 100 during swinging can be perpendicular to the supporting surface of the conveyor belt 400, and the conveying direction of the conveyor belt 400 can be consistent with the telescopic direction.

[0048] Before the conveyor equipment is laterally moved, the telescopic sections 101 of the multiple racks 100 are first shortened to minimize the overall conveyor equipment's shortest position. At this point, the conveyor belt 400 is relaxed. During the lateral movement of the conveyor equipment, the ends of the multiple racks 100 are sequentially moved laterally to predetermined positions, starting from the ends. During the lateral movement of any rack 100, as one end of the rack 100 moves to the predetermined position, the other end of the rack 100 rotates at the corresponding hinged position, gradually extending the corresponding telescopic section 101 of the rack 100. As the other end of the rack 100 also moves to the predetermined position, the corresponding telescopic section 101 of the rack 100 gradually shortens. The opposite ends of two adjacent racks 100 are moved laterally simultaneously, resulting in the telescopic section 101 of one rack shortening and the telescopic section 101 of the other rack extending.

[0049] Please refer to Figures 19 to 28 , five racks 100 are used as an example for description. The five racks 100 may be a first rack 110, a second rack 120, a third rack 130, a fourth rack 140, and a fifth rack 150, respectively. The first end of the first rack 110 may be a starting end, the second end of the first rack 110 is hinged to the first end of the second rack 120 via a connecting device 200, the second end of the second rack 120 is hinged to the first end of the third rack 130 via a connecting device 200, the second end of the third rack 130 is hinged to the first end of the fourth rack 140 via a connecting device 200, the second end of the fourth rack 140 is hinged to the first end of the fifth rack 150 via a connecting device 200, and the second end of the fifth rack 150 may be a trailing end.

[0050] Step 1: If Figures 19 to 20 As shown, the telescopic parts 101 of the five racks 100 are firstly all in a shortened state.

[0051] Step 2: Move the first end of the first frame 110 laterally to a preset position. During the movement of the first end of the first frame 110, the telescopic portion 101 of the first frame 110 extends. After the movement of the first end of the first frame 110 is completed, the first end of the first frame 110 is kept fixed.

[0052] Step 3: Simultaneously move the second end of the first frame 110 and the first end of the second frame 120 to a predetermined position. During the lateral movement of the second end of the first frame 110 and the first end of the second frame 120, the telescopic portion 101 of the first frame 110 shortens and the telescopic portion 101 of the second frame 120 lengthens.

[0053] Step 4: Simultaneously move the second end of the second frame 120 and the first end of the third frame 130 to a predetermined position. During the lateral movement of the second end of the second frame 120 and the first end of the third frame 130, the telescopic portion 101 of the second frame 120 shortens and the telescopic portion 101 of the third frame 130 lengthens.

[0054] Step 5: Simultaneously move the second end of the third frame 130 and the first end of the fourth frame 140 to a predetermined position. During the lateral movement of the second end of the third frame 130 and the first end of the fourth frame 140, the telescopic portion 101 of the third frame 130 shortens and the telescopic portion 101 of the fourth frame 140 lengthens.

[0055] Step 6: Simultaneously move the second end of the fourth frame 140 and the first end of the fifth frame 150 to a predetermined position. During the lateral movement of the second end of the fourth frame 140 and the first end of the fifth frame 150, the telescopic portion 101 of the fourth frame 140 shortens and the telescopic portion 101 of the fifth frame 150 lengthens.

[0056] Step 7: Move the second end of the fifth frame 150 to the preset position. During the movement of the second end of the fifth frame 150, the telescopic portion 101 of the fifth frame 150 is shortened.

[0057] Step 8: Extend the telescopic parts 101 of the five frames 100 so that the five frames 100 tighten the conveyor belt 400.

[0058] It should be noted that the movement method from the first step to the eighth step is only one lateral movement method of the multiple racks 100. The multiple racks 100 may also be moved in other ways, which will be described in detail later.

[0059] The present application provides a structure in which the conveying equipment includes a connecting device 200, a conveyor belt 400 and a plurality of racks 100, and the racks 100 are provided with a structure having a telescopic portion 101, so that the plurality of racks 100 are distributed in sequence along the telescopic direction of the telescopic portion 101, and the two opposite ends of two adjacent racks 100 are hinged by the connecting device 200, so that when the conveying equipment is moved laterally, the plurality of racks 100 do not need to be disassembled, and only need to cooperate with the telescopic portion 101 of the rack 100 to move laterally in sequence, thereby saving the time for disassembling and installing the plurality of racks 100, and further improving the utilization efficiency of the conveying equipment.

[0060] Specifically, the connecting device 200 can be a connecting pin, a slewing bearing, etc., and two adjacent frames 100 can be hinged by components such as the connecting pin or the slewing bearing.

[0061] In another embodiment, the connecting device 200 may include a device body 210, a first hinge shaft 220 and a second hinge shaft 230. The first hinge shaft 220 and the second hinge shaft 230 may be arranged at intervals on the device body 210, and the first hinge shaft 220 and the second hinge shaft 230 may both rotate around their respective center axes relative to the device body 210, and the opposite ends of two adjacent frames 100 may be connected to the first hinge shaft 220 and the second hinge shaft 230, respectively.

[0062] It should be noted that the central axis of the first hinge shaft 220 and the central axis of the second hinge shaft 230 correspond to the rotation axis in the aforementioned embodiment.

[0063] The conveying equipment disclosed in the embodiment of the present application is configured such that the connecting device 200 includes a device body 210, a first hinge shaft 220 and a second hinge shaft 230, so that the first hinge shaft 220 and the second hinge shaft 230 are arranged at intervals on the device body 210, and the ends of the two adjacent racks 100 are respectively connected to the first hinge shaft 220 and the second hinge shaft 230, thereby avoiding contact and interference between the two adjacent racks 100, and avoiding wear between the two adjacent racks 100.

[0064] To improve the stability of the connection between the frame 100 and the connecting device 200, the connecting device 200 may optionally further include a mounting plate 240 and a connecting portion 250. The first hinge shaft 220 and the second hinge shaft 230 may both be connected to the mounting plate 240. The mounting plate 240 may each be provided with a plurality of connecting portions 250. The connecting portions 250 are connected to the frame 100, so that the frame 100 is indirectly connected to the corresponding first hinge shaft 220 or second hinge shaft 230 via the plurality of connecting portions 250 and the mounting plate 240. Since the frame 100 is connected to the plurality of connecting portions 250 and then connected to the corresponding first hinge shaft 220 or second hinge shaft 230 via the mounting plate 240, the connection area between the frame 100 and the plurality of connecting portions 250 is relatively large, thereby facilitating improved stability of the connection between the frame 100 and the connecting device 200.

[0065] Optionally, the connecting device 200 may further include a first support portion 260, which may include a third hinge axis 261. The first support portion 260 may be hinged to the device body 210 via the third hinge axis 261, and the connecting device 200 may support the frame 100 via the first support portion 260. The first hinge axis 220, the third hinge axis 261, and the second hinge axis 230 may be sequentially spaced apart on the device body 210 along the extension direction. Alternatively, the first hinge axis 220, the second hinge axis 230, and the third hinge axis 261 may be spaced apart along the vertical direction, and the third hinge axis 261 may be located below the first hinge axis 220 and the second hinge axis 230. The vertical direction may be perpendicular to the extension direction.

[0066] It should be noted that the third hinge shaft 261 can rotate around its own central axis relative to the device body 210 , and the central axis of the third hinge shaft 261 can be perpendicular to the supporting surface of the conveyor belt 400 .

[0067] The conveying device disclosed in the embodiment of the present application is provided with a first support part 260, so that the first support part 260 is hinged to the device body 210 through the third hinge shaft 261, so that the first support part 260 can not only support the frame 100, but also when the frame 100 moves laterally and drives the device body 210 to rotate, the first support part 260 and the device body 210 can rotate relative to each other, thereby facilitating the lateral movement of the frame 100.

[0068] When the rack 100 moves laterally, it can be lifted and moved by multiple operators, or it can be lifted and moved by other mechanical equipment (such as a crane, an excavator, etc.).

[0069] In order to facilitate the lateral movement of the rack 100 , the connecting device 200 may optionally further include a moving portion 270 . The moving portion 270 may be disposed on a side of the first supporting portion 260 that is away from the device body 210 .

[0070] The conveying device disclosed in the embodiment of the present application is provided with a moving part 270, so that the movement of the moving part 270 drives the frame 100 to move laterally, thereby making the lateral movement of the frame 100 more convenient.

[0071] Optionally, the ends of the two outermost racks 100 away from the inner rack 100 can be provided with a connecting device 200, and the first hinge axis 220 and the second hinge axis 230 of the connecting device 200 can be connected to the end connection points of the two outermost racks 100 away from the inner rack 100 through corresponding connecting parts 250.

[0072] The conveying equipment disclosed in the embodiment of the present application is provided with connecting devices 200 at the ends of the two outermost frames 100 away from the inner frame 100, so that the ends of the two outermost frames 100 away from the inner frame 100 can be supported, and the ends of the two outermost frames 100 away from the inner frame 100 can be driven to move laterally through the moving part 270. In addition, the ends of the two outermost frames 100 away from the inner frame 100 and the ends of the two adjacent frames 100 use the same specifications of connecting devices 200, which is conducive to the unification of the components of the conveying equipment.

[0073] In order to improve the intelligence of the conveying equipment, optionally, the conveying equipment may also include a control device, which can be connected to the moving part 270. The control device can be used to control the moving part 270 to rotate around the central axis of the third hinge shaft 261, and control the moving part 270 to drive the frame 100 to move.

[0074] It should be noted that the control device controls the moving part 270 to rotate around the central axis of the third hinge shaft 261, which can adjust the moving direction of the moving part 270. The control device controls the moving part 270 to drive the frame 100 to move, which can achieve lateral movement of the end of the frame 100.

[0075] The conveying equipment disclosed in the embodiment of the present application is provided with a control device, so that the control device can control the movable part 270 to rotate around the central axis of the third hinge shaft 261, and can adjust the moving direction of the movable part 270. The control device can control the movable part 270 to drive the frame 100 to move, thereby realizing the lateral shifting of the end of the frame 100, thereby making the conveying equipment more intelligent.

[0076] In an optional embodiment, the conveying equipment may further include an alignment detection device, which may be used to detect whether the multiple racks 100 are aligned along the telescopic direction. The alignment detection device may be an infrared detection device, a camera detection device, or the like. If the multiple racks 100 are not aligned along the telescopic direction, then after the conveyor belt 400 is tightened, the conveyor belt 400 will be subjected to uneven force, causing the direction to tilt. The alignment detection device may be connected to a control device, which controls the movement of the moving part 270 when the alignment detection device detects that the multiple racks 100 are not aligned along the telescopic direction, so as to align the multiple racks 100 along the telescopic direction.

[0077] It should be noted that the alignment of multiple racks 100 along the telescopic direction means that the lateral sides of the multiple racks 100 do not extend beyond predetermined edges. The racks 100 have predetermined edges on both sides of the lateral sides. The alignment detection device is used to detect whether the predetermined edges extend beyond the sides of the racks 100 to determine whether the multiple racks 100 are aligned along the telescopic direction. The racks 100 are transversely perpendicular to the telescopic direction.

[0078] The conveying equipment disclosed in the embodiment of the present application is provided with an alignment detection device, so that the alignment detection device can detect whether multiple racks 100 are aligned along the telescopic direction, so that the control device controls the movement of the moving part 270 when the alignment detection device detects that the multiple racks 100 are not aligned along the telescopic direction, so as to align the multiple racks 100 along the telescopic direction, thereby avoiding the conveying direction being tilted due to uneven force on the conveyor belt 400 after it is tightened.

[0079] Specifically, the moving portion 270 may include a crawler structure, and the crawler structure may be provided on a side of the first supporting portion 260 that is away from the device body 210 .

[0080] The conveying equipment disclosed in the embodiment of the present application is configured to include a crawler structure in the moving part 270. Since the crawler structure has a large support area and movement stability, it can improve the stability of the frame 100 and the stability of the frame 100 during lateral movement.

[0081] Of course, the moving part 270 can also include structures such as rollers. It should be noted that both the track structure and the rollers are connected to a driving mechanism, and the driving mechanism can drive the track structure or the rollers to drive the frame 100 to move laterally.

[0082] In order to support the rack 100 , optionally, the conveying device may further include a second supporting portion 300 . The second supporting portion 300 may be connected to the rack 100 , and the second supporting portion 300 may be used to support the rack 100 .

[0083] In the case where the conveying device includes the first supporting portion 260 , the first supporting portion 260 and the second supporting portion 300 cooperate to support the rack 100 , which can further improve the support efficiency of the rack 100 .

[0084] Optionally, the frame 100 may include multiple upper rollers 102 and multiple lower rollers 103 , the conveyor belt 400 may be sleeved on the multiple upper rollers 102 and multiple lower rollers 103 , and the upper rollers 102 and the lower rollers 103 may rotate along with the conveyor belt 400 .

[0085] Optionally, the telescopic parts 101 of the multiple racks 100 can also be used to adjust the tension of the conveyor belt 400, so that the telescopic parts 101 can be used for multiple purposes.

[0086] Optionally, the connecting device 200 may include a fourth hinge axis, and the two opposite ends of the two adjacent frames 100 may be provided with a protrusion extending toward the inner sides of the two frames 100, and the protrusions of the two adjacent frames 100 are overlapped, and the protrusions may be provided with hinge holes. The fourth hinge axis may be passed through the hinge holes of the two adjacent frames 100, thereby realizing that the two opposite ends of the two adjacent frames 100 are hinged through the fourth hinge axis.

[0087] Optionally, the connecting portion 250 in the above embodiment can be fixedly provided on the frame 100, and the mounting plate 240 can be fixedly provided on the connecting portion 250, so that the frame 100, the connecting portion 250 and the mounting plate 240 can form a whole, and then be connected to the first hinge shaft 220 or the second hinge shaft 230 of the corresponding connecting device 200 through the mounting plate 240.

[0088] The above embodiments of the present invention focus on the differences between the various embodiments. As long as the different optimization features between the various embodiments are not contradictory, they can be combined to form a better embodiment. Considering the simplicity of the text, they will not be repeated here.

[0089] The embodiments of the present invention are described above in conjunction with the accompanying drawings, but the present invention is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present invention, ordinary technicians in this field can also make many forms without departing from the scope of protection of the purpose of the present invention and the claims, all of which are within the protection of the present invention.

Claims

1. A conveying device, characterized in that: The invention comprises a connecting device (200), a conveyor belt (400) and a plurality of racks (100), wherein the rack (100) has a telescopic portion (101), the plurality of racks (100) are sequentially distributed along the telescopic direction of the telescopic portion (101), the two opposite ends of two adjacent racks (100) are hinged via the connecting device (200), and the conveyor belt (400) is connected to the plurality of racks (100).

2. The conveying device according to claim 1, characterized in that The connecting device (200) includes a device body (210), a first hinge shaft (220) and a second hinge shaft (230), wherein the first hinge shaft (220) and the second hinge shaft (230) are arranged on the device body (210) at intervals, and the first hinge shaft (220) and the second hinge shaft (230) can both rotate around their respective central axes relative to the device body (210), and the two opposite ends of the two adjacent frames (100) are respectively connected to the first hinge shaft (220) and the second hinge shaft (230).

3. The conveying device according to claim 2, characterized in that The connecting device (200) further comprises a mounting plate (240) and a connecting portion (250); the first hinge shaft (220) and the second hinge shaft (230) are both connected to the mounting plate (240); the mounting plate (240) is provided with a plurality of connecting portions (250); and the connecting portions (250) are connected to the frame (100).

4. The conveying device according to claim 3, characterized in that The connecting device (200) further comprises a first support portion (260), the first support portion (260) comprising a third hinge shaft (261), the first support portion (260) being hinged to the device body (210) via the third hinge shaft (261), and the connecting device (200) supporting the frame (100) via the first support portion (260); wherein: the first hinge shaft (220), the third hinge shaft (261) and the second hinge shaft (230) are sequentially arranged on the device body (210) at intervals along the telescopic direction; or, the first hinge shaft (220), the second hinge shaft (230) and the third hinge shaft (261) are arranged at intervals along the vertical direction, and the third hinge shaft (261) is located below the first hinge shaft (220) and the second hinge shaft (230).

5. The conveying device according to claim 4, characterized in that The connecting device (200) further comprises a moving portion (270), wherein the moving portion (270) is provided on a side of the first supporting portion (260) facing away from the device body (210).

6. The conveying device according to claim 5, characterized in that The ends of the two outermost frames (100) away from the inner frame (100) are both provided with the connecting device (200), and the first hinge shaft (220) and the second hinge shaft (230) of the connecting device (200) are both connected to the ends of the two outermost frames (100) away from the inner frame (100) through the corresponding connecting parts (250).

7. The conveying device according to claim 6, characterized in that The conveying device further comprises a control device connected to the moving part (270) and used for controlling the moving part (270) to rotate around the central axis of the third hinge shaft (261), and controlling the moving part (270) to drive the frame (100) to move.

8. The conveying device according to claim 7, characterized in that The conveying equipment further comprises an alignment detection device, wherein the alignment detection device is used to detect whether the plurality of racks (100) are aligned along the telescopic direction. The alignment detection device is connected to the control device. When the alignment detection device detects that the plurality of racks (100) are not aligned along the telescopic direction, the control device controls the movement of the moving part (270) so that the plurality of racks (100) are aligned along the telescopic direction.

9. The conveying device according to claim 1, characterized in that The conveying device further comprises a second supporting portion (300), wherein the second supporting portion (300) is connected to the frame (100) and is used to support the frame (100).

10. The conveying device according to claim 1, characterized in that The connecting device (200) includes a fourth hinge shaft, and two opposite ends of two adjacent frames (100) are provided with a protrusion extending toward the inner side of the two frames (100), and the protrusions of the two adjacent frames (100) are stacked, and the protrusions are provided with a hinge hole, and the fourth hinge shaft is passed through the hinge holes of the two adjacent frames (100).

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