Feeding and discharging device

Abstract

The utility model relates to a feeding and discharging device which comprises a supporting platform, the supporting platform is provided with a bearing mechanism, the bearing mechanism comprises a bearing part, connecting arms are arranged on the two sides of the bearing part, and each connecting arm comprises a first connecting part connected with the bearing part and a second connecting part connected with the first connecting part in a telescopic mode. A first locking mechanism is arranged between the first connecting part and the second connecting part, the second connecting part is fixedly connected with one end of the fixed arm, the fixed arm is of a space truss structure composed of a plurality of rod pieces, the fixed arm is connected with a connecting piece in a sliding mode, and a second locking mechanism is arranged between the connecting piece and the fixed arm. The connecting piece is provided with a stop piece used for making contact with the front side face of the material. The feeding and discharging device overcomes the defects of an existing feeding and discharging device.

Description

Technical Field

[0001] The utility model relates to the technical field of material handling, in particular to a loading and unloading device. Background Art

[0002] The statements herein merely provide background art related to the present invention and do not necessarily constitute prior art.

[0003] Loading and unloading devices are crucial equipment for improving material handling efficiency and safety, primarily used in machinery such as lifting machinery and construction machinery. In the emerging photovoltaic technology, photovoltaic panels are laid out in upright positions within the material bin to prevent crushing and damage from their own weight during horizontal transportation. Loading and unloading devices are typically connected to the main body of the lifting equipment and constructed of sturdy materials. They are used to carry and secure the corresponding materials, enabling the lifting equipment to transport and store them in an orderly manner during production, installation, testing, and logistics. The support platform structure of existing loading and unloading devices is often constructed by parallel splicing two sections of steel. The connection nodes of the channel steel are irregularly shaped, requiring stiffening ribs. This results in poor bending resistance and an unsightly appearance. Anti-roll bars are often fixed rods, which have limited mounting space and cannot be used to store materials of varying sizes. Furthermore, most anti-roll bars are single-rod, bidirectional cantilever structures, which have poor bending and torsional resistance. Utility Model Content

[0004] In view of the deficiencies in the prior art, the purpose of the present invention is to provide a loading and unloading device that overcomes the defects of the current loading and unloading devices.

[0005] In order to achieve the above purpose, the present invention is implemented through the following technical solutions:

[0006] An embodiment of the utility model provides a loading and unloading device, including a supporting platform, the supporting platform is provided with a bearing mechanism, the bearing mechanism includes a bearing component, connecting arms are provided on both sides of the bearing component, the connecting arm includes a first connecting part connected to the bearing component and a second connecting part telescopically connected to the first connecting part, a first locking mechanism is provided between the first connecting part and the second connecting part, the second connecting part is fixedly connected to one end of the fixed arm, the fixed arm adopts a spatial truss structure composed of multiple rods, the fixed arm is slidably connected to a connecting part, a second locking mechanism is provided between the connecting part and the fixed arm, and the connecting part is provided with a stopper for contacting the front side of the material.

[0007] Optionally, running wheels are provided at the bottom of the bearing component, and the running wheels cooperate with the support platform to enable the bearing component to move along the support platform.

[0008] Optionally, a third locking mechanism is provided between the bearing component and the supporting platform to lock and fix the bearing component and the supporting platform.

[0009] Optionally, the bearing component includes a bottom frame, one end of the bottom frame is vertically provided with a backrest frame, the bottom frame is arranged at a set acute angle with the horizontal plane so that the material can lean on the backrest frame, and accordingly, the supporting platform includes a bottom supporting portion matching the bottom frame and a backrest supporting portion matching the backrest frame, the backrest supporting portion is vertically fixed to one end of the bottom supporting portion;

[0010] Furthermore, the backrest frame and the bottom frame adopt a frame structure formed by welding square tubes;

[0011] Furthermore, the bottom support portion and the backrest support portion of the support platform both adopt a frame structure formed by welding a plurality of round tubes.

[0012] Optionally, the bottom frame is provided with running wheels cooperating with the bottom support portion, and correspondingly, the backrest support portion is provided with elastic buffer components.

[0013] Optionally, the connecting arm is rotatably connected to the side of the bearing component and a fourth locking mechanism is provided between the connecting arm and the side of the bearing component.

[0014] Optionally, at least one first slider is provided on the first connecting part, the second connecting part passes through the first slider and is slidably connected to the first slider, the first locking mechanism includes a pressure plate movably provided on the first slider, both sides of the pressure plate are in contact with the outer side surface of the second connecting part and the first cam respectively, and the first cam is rotatably connected with a cam seat provided on the first slider.

[0015] Optionally, the fixed arm includes at least two fixed rods arranged in parallel, one end of the fixed rod is fixedly connected to the second connecting part, and a connecting rod is provided between the other ends. The connecting member is arranged between the multiple fixed rods and is slidably connected to the fixed rods, and a second locking mechanism is provided between the connecting member and at least one fixed rod.

[0016] Optionally, the connecting member is provided with a second slider, a rod member arranged in the fixed arm along the extension direction of the fixed arm passes through the second slider and is slidably connected to the second slider, the second slider is movably provided with a pressure plate, the two sides of the pressure plate are respectively in contact with the rod member and the second cam, and the second cam is rotatably connected to the cam seat set on the second slider.

[0017] Optionally, the stopper is mounted on a sleeve, which is sleeved on the outer periphery of the connecting member and is rotatably connected to the connecting member. The bottom end of the sleeve is provided with two notches spaced 180° apart, and is clamped on the fixing member through the notches. The fixing member is fixed vertically to the connecting member and the axis of the fixing member is parallel to the extension direction of the fixed arm.

[0018] The beneficial effects of the utility model are as follows:

[0019] 1. The loading and unloading device of the present invention has a connecting arm including a first connecting part and a second connecting part that are telescopically connected. The second connecting part is connected to the fixed arm, so that the distance between the fixed arms on both sides of the load-bearing component can be adjusted. Moreover, the connecting part is slidably connected to the fixed arm, so the position of the stopper can be adjusted, which meets the fixing requirements of goods of different sizes on the load-bearing component and realizes the storage of goods of different sizes, and has strong applicability.

[0020] 2. In the loading and unloading device of the present invention, the fixed arm adopts a spatial truss structure composed of multiple rods. Compared with the traditional single-rod two-way cantilever structure, the entire fixed arm has better anti-bending and anti-torsion effects.

[0021] 3. The loading and unloading device of the utility model, the bottom support part and the backrest support part of the support platform both adopt a frame structure welded by multiple round tubes, which avoids the defects of needing to set stiffening ribs when two cross-section steels such as channel steel are spliced ​​in parallel, and the round tube structure has a better appearance.

[0022] 4. In the loading and unloading device of the present invention, the connecting arm is rotatably connected to the side of the load-bearing component and a fourth locking mechanism is provided between the connecting arm and the side of the load-bearing component, thereby realizing the folding of the connecting arm and the fixed arm. The connecting arm and the fixed arm can be folded when not in use, thereby reducing the space occupied by the entire loading and unloading device and facilitating storage. At the same time, it can also avoid the loading and unloading device from colliding with the lifting equipment itself when the lifting equipment moves. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The drawings in the specification, which constitute a part of the present invention, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention.

[0024] Figure 1 This is a schematic diagram of the overall structure of Example 1 of the present utility model;

[0025] Figure 2 This is a schematic diagram of the support platform structure of Example 1 of the present utility model;

[0026] Figure 3 This is a schematic diagram of the structure of the bearing component of Example 1 of the utility model;

[0027] Figure 4 This is a schematic diagram of the assembly of the connecting arm and the fixed arm on one side of the load-bearing component of Example 1 of the present utility model;

[0028] Figure 5 This is a schematic diagram of the assembly of the connecting arm and the fixed arm on the other side of the load-bearing component of Example 1 of the present utility model;

[0029] Figure 6 This is a schematic structural diagram of the first connecting portion on one side of the bearing component of Example 1 of the present utility model;

[0030] Figure 7 This is a schematic structural diagram of the first connecting portion on the other side of the bearing component of Example 1 of the present utility model;

[0031] Figure 8 This is a schematic diagram of the fixed arm structure on one side of the bearing component of Example 1 of the utility model;

[0032] Figure 9 This is a schematic diagram of the fixed arm structure on the other side of the bearing component in Example 1 of the present utility model;

[0033] Figure 10 This is a schematic diagram of the assembly of the connecting member, the second slider, the second locking mechanism, and the rubber ring in Example 1 of the present utility model;

[0034] Figure 11 This utility model Figure 10 Explosion diagram of

[0035] Figure 12 This is a schematic diagram of the folded state of embodiment 1 of the present utility model;

[0036] Figure 13 This is a schematic diagram of the use state of Example 1 of the utility model;

[0037] Among them, 1. walking wheel, 2. first round tube, 3. vertical round tube, 4. positioning round tube, 5. second round tube, 6. diagonal bracing round tube, 7. longitudinal square tube, 8. transverse square tube, 9. rectangular frame, 10. rubber block, 11. connecting square tube, 12. vertical square tube, 13. connecting ear plate, 14. fixing ear plate, 15. telescopic square tube, 16. first slider, 17. pressure plate, 18. contact block one, 19. contact block two, 20. contact block three, 21. first cam, 22. shift rod, 23. fixing rod, 24. square tube, 25. connecting rod, 26. connecting piece, 27. second slider, 28. second cam, 29. cam seat, 30. rubber ring, 31. cam sleeve, 32. mounting rod, 33. sleeve, 34. fixing tube, 35. limiting beam, 36. locking plate. DETAILED DESCRIPTION

[0038] Example 1

[0039] This embodiment provides a loading and unloading device for installation on a lifting device, such as Figure 1As shown, the loading and unloading device includes a bearing mechanism and a support platform. The bearing mechanism includes a bearing component, and the bearing component is arranged on the support platform. In this embodiment, a walking wheel 1 is provided at the bottom of the bearing component. The walking wheel 1 cooperates with the support platform, and the bearing component can walk a certain distance along the support platform. Connecting arms are provided on both sides of the bearing component. The connecting arm is a telescopic structure, including a first connecting part and a second connecting part telescopically connected to the first connecting part. The first connecting part is connected to the bearing component, and the outer end of the second connecting part is vertically fixedly connected to one end of the fixed arm. This bionic embracing action structure is adopted to simulate the structure of the human arm, so that the loading and unloading device can fix the material more reliably.

[0040] The bearing component and the supporting platform both adopt an L-shaped structure.

[0041] like Figure 2 As shown, the support platform includes a bottom support portion and a backrest support portion vertically arranged at one end of the bottom support portion, and both the bottom support portion and the backrest support portion adopt a frame structure composed of multiple round tubes welded together.

[0042] Specifically, the bottom support portion shown includes two first circular tubes 2 arranged in parallel and along the traveling direction of the bearing component. The first circular tube 2 is set at a set acute angle to the horizontal plane. The first circular tube 2 is welded and fixed to the top ends of multiple vertical circular tubes 3. The vertical circular tube 3 is used to support the first circular tube 2. The first circular tube 2 is also welded and fixed to the top of a positioning circular tube 4. The axis of the positioning circular tube 4 is not parallel to the axis of the vertical circular tube 3, which plays a role in positioning and stabilizing support. One end of the first circular tube 2 is vertically welded to the second circular tube 5. The two second circular tubes 5 form a backrest support portion of the support platform. The second circular tube 5 is welded and fixed to one end of the diagonal support circular tube 6. The diagonal support circular tube 6 is used to support the second circular tube 5.

[0043] In this embodiment, the bottom support part and the backrest support part of the support platform both adopt a frame structure welded from multiple round tubes, which has good bending resistance and avoids the defects of needing to set stiffening ribs when using parallel splicing of two cross-section steels such as channel steels. The round tube structure also has a better appearance.

[0044] like Figure 3 As shown, the load-bearing component is used to support the goods. The load-bearing component also adopts an L-shaped structure, including a bottom frame and a backrest frame fixed to one end of the bottom support frame. The bottom frame and the backrest frame both adopt a frame structure welded from multiple square tubes to avoid the setting of stiffening ribs. The square tubes are better at resisting bending as backrest rods.

[0045] In this embodiment, the bottom frame includes two longitudinal square tubes 7 arranged along the travel direction. The longitudinal square tubes 7 are parallel to the first circular tubes 2. The two longitudinal square tubes 7 correspond to the two first circular tubes 2 respectively. The two ends and the middle of the bottom surface of the longitudinal square tubes 7 are mounted with running wheels 1, which cooperate with the first circular tubes 2. In this embodiment, the wheel surface of the running wheel 1 is an inner concave surface, which ensures the stability of the cooperation between the running wheel 1 and the first circular tube 2. The first circular tube 2 serves as both a wheel support and a wheel guide. A plurality of transverse square tubes 8 are vertically welded and fixed between the two longitudinal square tubes 7 to form the bottom frame structure. One end of the longitudinal square tube 7 is vertically welded and fixed to the bottom end of the backrest frame composed of a rectangular frame 9. The rectangular frame is internally provided with a plurality of transverse square tubes and vertical square tubes for support.

[0046] The longitudinal square tube 7 is parallel to the first circular tube 2 and also forms a set acute angle with the horizontal plane. In this way, photovoltaic panels and other goods are placed at an acute angle to the vertical plane, supported by the bottom frame and leaning on the backrest frame, making the goods storage convenient and stable.

[0047] In order to avoid a rigid collision between the backrest frame and the backrest support part when the backrest frame returns to its original position, the second circular tube 5 is provided with an elastic buffer component. Preferably, the elastic buffer component is a rubber block 10. The rubber block 10 contacts the backrest frame to avoid a rigid collision between the backrest frame and the second circular tube 5, thereby playing a role of shock absorption and buffering.

[0048] like Figure 4-Figure 5 As shown, connecting arms are connected to both sides of the backrest frame. The connecting arms adopt a telescopic structure, including a first connecting part and a second connecting part telescopically connected to the first connecting part. The outer end of the second connecting part is vertically welded and fixed with a fixed arm.

[0049] In this embodiment, Figure 6-Figure 7 As shown, the first connecting portion includes two parallel connecting square tubes 11 , and two vertical square tubes 12 are vertically welded and fixed between the two connecting square tubes 11 to form a rectangular frame structure.

[0050] Two connecting lugs 13 are provided at the inner end of the connecting square tube 11. The connecting lugs 13 extend between the two fixed lugs 14 and are rotatably connected to the fixed lugs via a rotating shaft. The fixed lugs 14 are fixed to the outside of the backrest frame. In this embodiment, the rotating shaft is a bolt, the head of which presses against the outside surface of one fixed lug 14. The shank of the bolt passes through the two fixed lugs 14 and the connecting lug 13 and is then threadedly connected to a nut. The nut presses against the outside surface of the other fixed lug 14. The two fixed lugs 14 press against the two connecting lugs 13, thereby achieving a locked fixation between the first connecting portion and the backrest frame. Loosening the nut allows the first connecting portion to rotate. The nut serves as a fourth locking mechanism between the connecting arm and the backrest frame.

[0051] The distance between the two connecting square tubes 11 of the first connecting portion on one side of the backrest frame is greater than the distance between the two connecting square tubes 11 on the other side, so that when the two connecting arms are rotated and folded, there will be no movement interference between the two connecting arms and the fixed arm.

[0052] The second connecting portion is telescopically connected to the first connecting portion and a first locking mechanism is provided between the second connecting portion and the first connecting portion.

[0053] In this embodiment, the second connecting part is also made of two telescopic square tubes 15, each telescopic square tube 15 is telescopically connected to the corresponding connecting square tube 11, and two first sliders 16 are provided on the connecting square tube 11. The telescopic square tube 15 passes through the first slider 16 and is slidably connected to the first slider 16.

[0054] Specifically, the first slider 16 includes a rectangular tube, and the four inner sides of the rectangular tube are provided with contact blocks, which contact the telescopic square tube 15 and are slidably connected to the telescopic square tube 15, wherein the tube wall at the upper end of the rectangular tube is provided with an opening, and correspondingly, the contact block on the inner side of the tube wall also forms an opening, and a pressure plate 17 is movably provided in the opening. Specifically, the inner side of the tube wall with the opening is provided with two contact blocks 18 by bolts, and an opening is formed between the two contact blocks 18, and the inner side of the tube wall on the opposite side of the tube wall is provided with a contact block 2 19 by bolts, and the other two opposite inner sides of the tube wall are provided with contact blocks 3 20 by bolts. In this embodiment, the area of ​​the opening is larger than the area of ​​the pressure plate 17, and the pressure plate 17 can be placed in the opening to realize the movable setting, and the pressure plate 1 One side of 7 contacts with the telescopic square tube 15, and the other side contacts with the first cam 21. The first cam 21 is arranged on the cam sleeve, and the cam sleeve is rotatably connected to the camshaft. The camshaft adopts a bolt, and the cam sleeve is sleeved on the outer periphery of the rod of the bolt, and its two ends are respectively in contact with two ear plates fixed to the first slider 16. The bolt rod passes through the two ear plates and is threadedly connected by a locking nut. The two ear plates constitute a cam seat. The head of the bolt is pressed against the outer side surface of the ear plate on one side, and the nut is pressed against the outer side surface of the ear plate on the other side. The ear plates on both sides clamp the cam sleeve, thereby realizing the locking and fixing of the first cam. Loosen the nut, the two ear plates loosen the cam sleeve, and the first cam can rotate freely. The cam sleeve is connected to one end of the shift rod 22, which is convenient for the staff to rotate the first cam 21.

[0055] The first cam 21 rotates to switch the state of the pressing plate 17 pressing and releasing the telescopic square tube 15 , thereby switching the state of the telescopic square tube 15 and the connecting square tube 11 between the locking and releasing states.

[0056] The first locking mechanism is set in this way to facilitate operation by staff. It can be understood that the first locking mechanism can adopt a locking bolt threadedly connected to the first slider, and those skilled in the art can set it according to actual needs.

[0057] like Figure 8-Figure 9 As shown, the fixed arm includes two parallel fixed rods 23, the plane where the axes of the two fixed rods 23 are located is perpendicular to the bottom frame, the fixed rods 23 are arranged along the extension direction of the entire fixed arm, and the fixed rods 23 are also made of square tubes. One end of the fixed rod 23 is vertically welded and fixed to the corresponding telescopic square tube 15, and a square tube 24 is vertically welded and fixed between the ends of the two fixed rods 23 connecting the telescopic square tube 15, and a connecting rod 25 is fixed between the other ends. A connecting piece 26 is also provided between the two fixed rods 23 to form a spatial truss structure. The fixed arm adopts a spatial truss structure composed of multiple rods such as fixed rods, square tubes, and connecting rods. Compared with the traditional single-rod two-way cantilever structure, the entire fixed arm has better anti-bending and anti-torsion effects.

[0058] like Figure 10-11 As shown, the connecting member 26 is made of a circular tube, and both ends of the connecting member are slidably connected to the two fixing rods 23 respectively, and can move along the axis direction of the fixing rod 23.

[0059] A second locking mechanism is provided between the end of the connecting member 26 and the fixing rod 23 , and the connecting member and the fixing rod can be locked and fixed by the second locking mechanism.

[0060] In this embodiment, the structure of the second locking mechanism is the same as that of the first locking mechanism, and also includes a second slider 27. The second slider 27 is fixedly connected to the connecting member 26, and the fixed rod 23 passes through the second slider 27 and is slidably connected to the second slider 27. The second slider 27 has the same structure as the first slider 16 and also includes a rectangular tube. The inner sides of the four tube walls of the rectangular tube are provided with contact blocks, which contact the fixed rod 23 and are slidably connected to the fixed rod 23. The outer tube wall of the rectangular tube is provided with an opening, and the contact block on its inner side is also provided with an opening. A pressure plate 17 is movably provided at the opening, and one side of the pressure plate 17 contacts the fixed rod 23, and the other side contacts the second cam 28. The second cam 28 is rotatably connected to the cam seat 29 fixed to the second slider through the cam sleeve 31. The connection method of the second cam 28 and the cam seat 29 is the same as the connection method of the first cam 21 and the cam seat, and is repeated here.

[0061] It is understandable that the second locking mechanism may also be a second locking bolt threadedly connected to the second slider 27 .

[0062] The connecting piece is provided with a stopper, which is used to contact the front side of the cargo to prevent the cargo from tipping forward during transportation.

[0063] In this embodiment, the stopper is a rubber ring 30 , which is sleeved and fixed on the outer periphery of the mounting rod 32 , and the mounting rod 32 is vertically fixed on the sleeve 33 , which is sleeved on the outer periphery of the connecting member 26 and is rotatably connected to the connecting member 26 .

[0064] The bottom end of the sleeve 33 is provided with two notches, which are set 180° apart. The sleeve is clamped on the fixing piece through the notches. The fixing piece adopts a fixing tube 34, which is fixed vertically to the connecting piece 26. The axis of the fixing tube 34 is parallel to the extension direction of the fixed arm.

[0065] When it is necessary to place goods on the load-bearing component, the sleeve 33 can be lifted, the notch and the fixing tube 34 are separated, the sleeve is rotated 180°, the notch is re-engaged in the fixing tube 34, and the rubber ring 30 is rotated to the outside of the space between the two fixing arms. At this time, the goods can be delivered. After the goods are delivered, the sleeve 33 is lifted, and the notch is re-engaged in the fixing tube 34 after the sleeve is rotated 180°. At this time, the rubber ring 30 is located in the space between the two fixing arms. The connecting piece 26 slides along the fixing rod 23 until the rubber ring 30 contacts the front side of the goods, and then is locked using the second locking mechanism.

[0066] The structures of the connecting arms and the fixed arms on both sides of the backrest frame are the same and will not be repeated here.

[0067] The connecting arm can be extended and retracted, and the connecting piece can slide along the fixed arm, which meets the fixing requirements of goods of different sizes and improves the applicability of the entire loading and unloading device.

[0068] In this embodiment, Figure 12 As shown, since the first connecting portion is rotatably connected to the backrest frame, the two connecting arms can be rotated 90° to be perpendicular to the backrest frame, so that the connecting arms and the fixed arms can be folded and stowed, reducing the occupied volume and facilitating storage. At the same time, it can also avoid the loading and unloading device from colliding with the lifting equipment itself when the lifting equipment moves.

[0069] Furthermore, in order to limit the expansion of the connecting arm, a limiting beam 35 is provided on the back of the side portion of the backrest frame. The limiting beam 35 is made of a square tube and can contact the first connecting part to limit the rotation of the first connecting part.

[0070] In this embodiment, since the first connecting portion includes two connecting square tubes 11 , two limiting beams 35 are provided, and the two limiting beams 35 correspond to the two connecting square tubes 11 respectively.

[0071] The cam 36 is a plurality of locking plates which are fixed to the bottom surface of the limiting beam 35 below, and a locking pin is passed through the plurality of locking plates. A locking bolt is passed through the second circular tube 5, and a nut is threadedly connected to the locking bolt. The rod of the locking bolt passes through two locking plates 36, and one end of the locking plate 36 is rotatably connected to the rod of the locking bolt. The two locking plates 36 are respectively located on both sides of the second circular tube 5, and the other end of the locking plate 36 is provided with a through hole for the locking pin to pass through. The locking plate 36 is rotated so that the through hole of the locking plate 36 corresponds to the locking pin, and the locking pin is moved so that the locking pin passes through all the locking lugs and the locking plate 36, thereby realizing the connection between the backrest frame and the backrest support part.

[0072] Furthermore, the locking pin is provided with an anti-slip plate, which is located between the locking lugs to prevent the locking pin from falling off the locking lugs.

[0073] When the loading and unloading device of this embodiment is working, Figure 13 As shown, the third locking mechanism is loosened, the load-bearing component is pushed out a certain distance, and then the load-bearing component is loaded by a loading device such as a forklift. After loading is completed, the rubber ring is rotated to the space between the two fixed arms, and then the connecting piece is moved so that the rubber ring contacts the front side of the photovoltaic panel box 37 and other goods, and the second locking mechanism is locked to prevent the goods from tipping forward during transportation. The load-bearing component is then returned to its initial position, and the load-bearing component and the support platform are locked by the third locking mechanism. At this time, the goods can be transported.

[0074] The loading is carried out after the bearing component is pushed out to prevent collision and interference between the loading equipment and the loading and unloading devices.

[0075] When the material is a photovoltaic panel, the photovoltaic panel is grabbed at a sideways angle, avoiding the use of a complicated turning device and preventing the photovoltaic panel from being damaged due to self-weight squeezing.

[0076] The loading and unloading device of this embodiment is mainly used in the laying of photovoltaic panels in the photovoltaic field and other lifting machinery fields to carry and fix corresponding materials so that the lifting equipment can transport and store materials in an orderly, efficient and safe manner during production, installation, testing, logistics and other processes.

[0077] The above description is merely a preferred embodiment of the present application and is not intended to limit the present application. Various modifications and variations are possible for those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present application shall be included within the scope of protection of the present application.

Claims

1. A loading and unloading device, characterized in that: The support platform includes a supporting platform, which is provided with a bearing mechanism. The bearing mechanism includes a bearing component. Connecting arms are provided on both sides of the bearing component. The connecting arm includes a first connecting portion connected to the bearing component and a second connecting portion telescopically connected to the first connecting portion. A first locking mechanism is provided between the first connecting portion and the second connecting portion. The second connecting portion is fixedly connected to one end of the fixed arm. The fixed arm adopts a spatial truss structure composed of multiple rods. The fixed arm is slidably connected to a connecting member. A second locking mechanism is provided between the connecting member and the fixed arm. The connecting member is provided with a stopper for contacting the front side of the material.

2. A loading and unloading device according to claim 1, characterized in that: The bottom of the bearing component is provided with running wheels, which cooperate with the supporting platform so that the bearing component can move along the supporting platform.

3. A loading and unloading device according to claim 2, characterized in that: A third locking mechanism is provided between the bearing component and the supporting platform to lock and fix the bearing component and the supporting platform.

4. A loading and unloading device according to claim 1, characterized in that: The bearing component includes a bottom frame, one end of which is vertically provided with a backrest frame, and the bottom frame is arranged at a set acute angle with the horizontal plane so that the material can lean on the backrest frame. Accordingly, the supporting platform includes a bottom support portion matching the bottom frame and a backrest support portion matching the backrest frame, and the backrest support portion is vertically fixed to one end of the bottom support portion; Furthermore, the backrest frame and the bottom frame adopt a frame structure formed by welding square tubes; Furthermore, the bottom support portion and the backrest support portion of the support platform both adopt a frame structure formed by welding a plurality of round tubes.

5. A loading and unloading device according to claim 4, characterized in that: The bottom frame is provided with running wheels matched with the bottom support portion, and correspondingly, the backrest support portion is provided with elastic buffer components.

6. A loading and unloading device according to claim 1, characterized in that: The connecting arm is rotatably connected to the side of the bearing component and a fourth locking mechanism is provided between the connecting arm and the side of the bearing component.

7. A loading and unloading device according to claim 1, characterized in that: At least one first slider is provided on the first connecting part, the second connecting part passes through the first slider and is slidably connected to the first slider, the first locking mechanism includes a pressure plate movably provided on the first slider, both sides of the pressure plate are in contact with the outer side surface of the second connecting part and the first cam respectively, and the first cam is rotatably connected with a cam seat provided on the first slider.

8. A loading and unloading device according to claim 1, characterized in that: The fixed arm includes at least two fixed rods arranged in parallel, one end of the fixed rod is fixedly connected to the second connecting part, and a connecting rod is provided between the other ends. The connecting piece is arranged between the multiple fixed rods and is slidably connected to the fixed rods. A second locking mechanism is provided between the connecting piece and at least one fixed rod.

9. A loading and unloading device according to claim 8, characterized in that: The connecting member is provided with a second slider, a rod member arranged in the fixed arm along the extension direction of the fixed arm passes through the second slider and is slidably connected to the second slider, the second slider is movably provided with a pressure plate, both sides of the pressure plate are in contact with the rod member and the second cam respectively, and the second cam is rotatably connected to the cam seat arranged on the second slider.

10. The loading and unloading device according to claim 1, characterized in that: The stopper is installed on the sleeve, which is sleeved on the outer periphery of the connecting member and is rotatably connected to the connecting member. The bottom end of the sleeve is provided with two notches spaced 180° apart, and is clamped on the fixing member through the notches. The fixing member is fixed vertically to the connecting member and the axis of the fixing member is parallel to the extension direction of the fixed arm.

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