A transfer trolley

Abstract

The application discloses a transfer trolley, which solves the technical problem of time-consuming and laborious installation of a cover plate in the prior art. The transfer trolley comprises a trolley body, a frame and a wheel assembly, the wheel assembly is provided with an axle, and the frame is rotationally connected with the axle; the frame has a handrail end and a clamp end which are oppositely arranged along the length direction of the trolley body; the clamp comprises a traction rope, a first clamping part and a second clamping part, the two ends of the traction rope are respectively connected with the upper ends of the first clamping part and the second clamping part, the middle part of the traction rope is connected with the clamp end, and the middle parts of the first clamping part and the second clamping part are hingedly connected; wherein the lower end of the first clamping part is provided with a first clamping surface and a supporting surface, and the lower end of the second clamping part is provided with a second clamping surface and an ejection surface; the first clamping surface and the second clamping surface are oppositely arranged and respectively act on two opposite sides of the cover plate, the supporting surface acts on the bottom surface of the cover plate, and the ejection surface faces downward. The transfer trolley provided by the application is time-saving and labor-saving in installation of the cover plate and has high efficiency.

Description

Technical Field

[0001] This application belongs to the field of cover plate transfer technology, specifically relating to a transfer trolley. Background Technology

[0002] A cable trench is an underground passage used for laying cables. It typically includes a trench body and a cover. The cover covers the top of the trench body to prevent people or objects from falling into the cable trench and to protect the cables from external environmental factors. Generally, multiple concrete covers are installed, arranged sequentially along the extension direction of the cable trench.

[0003] In related technologies, the cover plate is often installed manually with a pry bar, which is inefficient. Summary of the Invention

[0004] To address the current technical problem of time-consuming and labor-intensive cover plate installation, this application provides a transfer trolley.

[0005] This application provides a transfer trolley for transferring cover plates, the transfer trolley comprising:

[0006] The vehicle body includes a frame and a wheel assembly, the wheel assembly having an axle, the frame being rotatably connected to the axle; the frame has a handrail end and a clamp end arranged opposite to each other along the length of the vehicle body.

[0007] The clamp includes a traction rope, a first clamping part, and a second clamping part. The two ends of the traction rope are respectively connected to the upper ends of the first clamping part and the second clamping part, and the middle part of the traction rope is connected to the clamping end. The middle parts of the first clamping part and the second clamping part are hinged.

[0008] The lower end of the first clamping part is provided with a first clamping surface and a supporting surface, and the lower end of the second clamping part is provided with a second clamping surface and a top-out surface; the first clamping surface and the second clamping surface are arranged opposite to each other and act on two opposite sides of the cover plate, the supporting surface acts on the bottom surface of the cover plate, and the top-out surface faces downward.

[0009] In some embodiments, the height of the top surface is higher than the height of the support surface; when the clamp holds the cover plate, the height difference between the top surface and the support surface is 18mm to 22mm.

[0010] In some embodiments, both the top surface and the support surface are planar.

[0011] In some embodiments, both the first clamping part and the second clamping part include a clamping rod and a clamping member, wherein the upper end of the clamping rod is connected to the traction rope, and the clamping member is connected to the lower end of the clamping rod;

[0012] The clamping member of the first clamping part has the first clamping surface and the supporting surface, and the clamping member of the second clamping part has the second clamping surface and the ejecting surface; the clamping member extends along the length direction of the cover plate.

[0013] In some embodiments, the clamping element is an angle steel, which is welded to the corresponding clamping rod.

[0014] In some embodiments, the second clamping surface is provided with a friction layer.

[0015] In some embodiments, the middle portion of the traction rope is rotatably connected to the clamp end via a rotating member.

[0016] In some embodiments, the rotating component includes a sleeve and an inner core, the sleeve being connected to the clamp end, the inner core being located inside the sleeve and rotatably connected to the sleeve via a thrust ball bearing, and the lower end of the inner core extending out of the sleeve and connected to the middle of the traction rope.

[0017] In some embodiments, the upper end of the sleeve is provided with a first connecting plate, the first connecting plate having a through hole coaxially communicating with the sleeve; the upper end of the inner core is provided with a second connecting plate, the diameter of the second connecting plate being larger than the inner diameter of the sleeve and located above the first connecting plate, and the inner ring and outer ring of the thrust ball bearing being respectively connected to the second connecting plate and the first connecting plate.

[0018] In some embodiments, the inner diameter of the sleeve is 60mm to 70mm, and the thickness of both the first connecting plate and the second connecting plate is 8mm to 12mm.

[0019] The transfer trolley provided according to the embodiments of this application includes a trolley body and a clamp.

[0020] The vehicle body includes a frame and wheel assemblies. The wheel assemblies are equipped with axles, and the frame is rotatably connected to the axles. The frame has a handrail end and a clamp end arranged opposite each other along the length of the vehicle body. The clamp includes a traction rope, a first clamping part, and a second clamping part. The two ends of the traction rope are respectively connected to the upper ends of the first clamping part and the second clamping part, and the middle part of the traction rope is connected to the clamp end. The middle parts of the first clamping part and the second clamping part are hinged. The lower end of the first clamping part is provided with a first clamping surface and a supporting surface, and the lower end of the second clamping part is provided with a second clamping surface and a top-out surface. The first clamping surface and the second clamping surface are arranged opposite each other and act on two opposite sides of the cover plate. The supporting surface acts on the bottom surface of the cover plate, and the top-out surface faces downward.

[0021] Because the lower end of the first clamping part has a support surface that mates with the bottom surface of the cover plate, the cover plate can be prevented from detaching. The second clamping part has a top protruding surface that can mate with an adjacent cover plate already installed in the cable trench. This allows the second clamping part to remain at a constant height while the traction rope is slack as the clamping end continues to descend. The first clamping part rotates slightly relative to the second clamping part, essentially unclamping the first clamping part. By applying a slight pulling force away from the cover plate to the first clamping part, the clamp can be fully opened, allowing the cover plate to fall freely to the target installation point, saving manpower and improving the efficiency of cover plate transportation and installation. Attached Figure Description

[0022] Figure 1 A schematic diagram of the transfer trolley of this application is shown.

[0023] Figure 2 A structural schematic diagram of the transfer trolley from another angle is shown.

[0024] Figure 3 It shows Figure 2 A schematic diagram of the fixture in the diagram.

[0025] Figure 4 It shows Figure 2 A schematic diagram of the rotating component.

[0026] Figure 5 The diagram shows a schematic of the structure by which the transfer trolley transfers the cover plate to the target installation point.

[0027] Figure 6 A schematic diagram of the transfer trolley is shown when the adjacent cover plates just come into contact with the top surface.

[0028] Figure 7 A schematic diagram of the transfer trolley is shown at the moment when the first clamping part of the clamp separates from the cover plate.

[0029] Figure 8 A schematic diagram of the transfer trolley is shown when the cover plate is installed to the target installation point.

[0030] Explanation of reference numerals in the attached figures:

[0031] 100-Car body, 110-Frame, 111-Handrail end, 112-Clamp end, 120-Wheel assembly, 121-Axle, 122-Wheel.

[0032] 200-Clamp, 210-First clamping part, 211-First clamping surface, 212-Supporting surface, 213-Clamping rod of the first clamping part, 214-Clamping member of the first clamping part, 220-Second clamping part, 221-Second clamping surface, 222-Ejection surface, 223-Clamping rod of the second clamping part, 224-Clamping member of the second clamping part, 225-Friction layer, 230-Traction rope.

[0033] 300-Rotating component, 301-Sleeve, 302-First connecting plate, 303-Inner core, 304-Second connecting plate, 305-Thrust ball bearing, 306-Lifting ring.

[0034] 400 - Cover plate, 401 - Top surface, 403 - Side surface. Detailed Implementation

[0035] To enable those skilled in the art to more clearly understand this application, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0036] This application provides a transfer trolley that can transfer cable trench covers from storage locations to the cable trench to complete the installation of the covers. The process is simple, saves manpower, and is highly efficient.

[0037] This application is described below with reference to the accompanying drawings and specific embodiments:

[0038] Please see Figures 1 to 3 The transfer trolley provided in this application embodiment includes a trolley body 100 and a clamp 200.

[0039] The vehicle body 100 includes a frame 110 and a wheel assembly 120. The wheel assembly 120 is provided with an axle 121. The frame 110 is rotatably connected to the axle 121 at the middle of the length direction of the vehicle body 100. The frame 110 has a handrail end 111 and a clamp end 112 arranged opposite to each other along the length direction of the vehicle body 100. The clamp 200 includes a traction rope 230, a first clamping part 210 and a second clamping part 220. The two ends of the traction rope 230 are respectively connected to the upper ends of the first clamping part 210 and the second clamping part 220. The middle part of the traction rope 230 is connected to the clamp end 112. The middle parts of the first clamping part 210 and the second clamping part 220 are hinged together. The lower end of the first clamping part 210 is provided with a first clamping surface 211 and a supporting surface 212, and the lower end of the second clamping part 220 is provided with a second clamping surface 221 and a ejecting surface 222. The first clamping surface 211 and the second clamping surface 221 are arranged opposite to each other and act on the two opposite sides 403 of the cover plate 400 respectively. The supporting surface 212 acts on the bottom surface of the cover plate 400, and the ejecting surface 222 faces downward.

[0040] The vehicle body 100 can travel along the road surface, thus carrying the cover plate 400 for transport, saving manpower. The frame 110 is connected to the axle 121 for transmission, so the axle 121 can serve as the fulcrum of the frame 110. During the process of the handrail end 111 rising or falling, the clamp end 112 falls or rises accordingly, thereby driving the clamp 200 and the cover plate 400 to fall or rise.

[0041] The two ends of the traction rope 230 of the clamp 200 are connected to the upper ends of the first clamping part 210 and the second clamping part 220. Therefore, as the clamp end 112 drives the traction rope 230 to rise, the first clamping part 210 and the second clamping part 220 will also rise. Since the middle of the first clamping part 210 and the second clamping part 220 are hinged, and the first clamping surface 211 and the second clamping surface 221 at the lower end can clamp the two opposite sides 403 of the cover plate 400 to form an X shape, as the traction rope 230 drives the first clamping part 210 and the second clamping part 220 to rise, the two ends of the traction rope 230 tend to move closer to each other under the action of the gravity of the cover plate 400. This causes the upper end of the first clamping part 210 and the upper end of the second clamping part 220 to move closer to each other. In this way, the lower end of the first clamping part 210 and the lower end of the second clamping part 220 will also move closer to each other to clamp the cover plate 400, thereby realizing the clamping of the cover plate 400. The first clamping surface 211 and the second clamping surface 221 of the clamp 200 will generate friction with the side surface 403 of the cover plate 400, and the clamp 200 will hold the cover plate 400 tightly. The heavier the cover plate 400 is, the tighter the clamp 200 will hold it.

[0042] Because the lower end of the first clamping part 210 is provided with a support surface 212, and the support surface 212 mates with the bottom surface of the cover plate 400, the cover plate 400 can be prevented from detaching. The second clamping part 220 is provided with a top protruding surface 222, which can mate with an adjacent cover plate 400 that has been installed in the cable trench. As the clamping end 112 continues to descend and the traction rope 230 is in a slack state, the height of the second clamping part 220 remains unchanged, and the first clamping part 210 rotates slightly relative to the second clamping part 220, so that the first clamping part 210 is basically in a loose state. Then, by manually applying a slight pulling force away from the cover plate 400 to the first clamping part 210, the clamp 200 can be fully opened, allowing the cover plate 400 to fall freely to the target installation point, saving manpower and improving the efficiency of cover plate 400 transportation and installation.

[0043] For the first clamping part 210 and the second clamping part 220 of the clamp 200, an anti-detachment structure is provided on the first clamping part 210. There is no other cover plate 400 on the side of the cover plate 400 that interacts with the first clamping part 210, so the anti-detachment structure can be freely separated from the cover plate 400 to be installed. The second clamping part 220 is provided with a top surface 222. There is an already installed cover plate 400 on the side of the cover plate 400 that interacts with the second clamping part 220. The top surface 401 of the already installed cover plate 400 can be used to cooperate with the top surface 222 of the second clamping part 220 to separate the clamp 200 from the cover plate 400.

[0044] The process of transferring the cover plate 400 using the transfer trolley of this application is as follows: The trolley body 100 is pushed to the storage position of the cover plate 400. The handle end 111 rises, and the clamp end 112 descends. With manual assistance, the first clamping surface 211 and the second clamping surface 221 respectively adhere to the two opposite sides 403 of the cover plate 400 in the width direction, and the supporting surface 212 mates with the bottom surface of the cover plate 400. The handle end 111 descends, and the clamp 200 rises. Under the action of gravity, the upper ends of the first clamping part 210 and the lower ends of the second clamping part 220 move closer together, thereby clamping the cover plate 400. Push the vehicle body 100, which will move the clamp 200 and the cover plate 400 to the target installation position. At this time, bring the second clamping part 220 close to the already installed cover plate 400, and move the first clamping part 210 away from the already installed cover plate 400. The handrail end 111 rises, and the clamp 200 gradually descends with the cover plate 400. The top surface 222 of the second clamping part 220 is in contact with the top surface 401 of the already installed cover plate 400. The handrail end 111 continues to rise, the traction rope 230 is slack, and the second clamping part 220 is pushed upward by the adjacent cover plate 400 and gradually rises. The cover plate 400 falls to the side of the already installed cover plate 400. Manually apply a pulling force to the first clamping part 210 away from the cover plate 400. The cover plate 400 is completely separated from the clamp 200, and the installation of the cover plate 400 is completed.

[0045] In some embodiments, please refer to Figure 3 The height of the ejector surface 222 is higher than the height of the support surface 212. During the simultaneous descent of the clamp 200 and the cover plate 400, the higher height of the ejector surface 222 reduces the free fall height of the cover plate 400 after it separates from the second clamping surface 221, improving the accuracy of the cover plate 400's landing point and reducing the risk of damage from free fall. The height difference also easily dissipates the horizontal tension of the clamp 200, facilitating the free fall of the cover plate 400 to the template installation point. In other embodiments, the height of the ejector surface 222 can be the same as the height of the support surface 212, also achieving separation of the clamp 200 and the cover plate 400.

[0046] In some embodiments, when the clamp 200 holds the cover plate 400, the height difference between the top surface 222 and the support surface 212 is 18mm to 22mm, for example 20mm, so as to achieve accurate placement of the heavy-duty cement cover plate 400 on the cable trench.

[0047] When the height of the ejector surface 222 is higher than the height of the support surface 212, the height difference between the ejector surface 222 and the support surface 212 can be one-third to two-thirds of the height of the cover plate 400, so that the area of ​​action between the second clamping surface 221 and the side surface 403 of the cover plate 400 is not too small, thus ensuring the stability of the clamp 200 holding the cover plate 400.

[0048] In some embodiments, please refer to Figure 3 Both the ejector surface 222 and the support surface 212 are planar. The cover plate 400 is generally a plate-like structure, rectangular in shape. The side surfaces 403, top surface 401, and bottom surface of the cover plate 400 are generally planar. Therefore, setting the ejector surface 222 and the support surface 212 as planar allows them to fit with the surface of the cover plate 400, increasing the effective area. In other embodiments, the top surface 401 of the cover plate 400 can also be a curved surface with a certain curvature. In this case, the ejector surface 222 can also be set as a curved surface to fit with the top surface 401 of the cover plate 400. Similarly, the bottom surface of the cover plate 400 can also be a curved surface, and the support surface 212 can be set as a curved surface to fit with the bottom surface of the cover plate 400.

[0049] In some embodiments, the traction rope 230 can be a steel wire rope or a chain, and this application does not impose specific limitations. In some embodiments, two traction ropes 230 can be provided, with the lower ends of the two traction ropes 230 respectively connected to the first clamping part 210 and the second clamping part 220, and the upper ends of both connected to the clamping end 112. When the traction rope 230 is a chain, the chain can be a stainless steel chain with a wire diameter of 4mm, an inner diameter of 16mm, and an outer width of 13mm.

[0050] In some embodiments, please refer to Figure 3The first clamping part 210 and the second clamping part 220 both include clamping rods 213 and 223 and clamping members 214 and 224. The upper ends of the clamping rods 213 and 223 are connected to the traction rope 230, and the clamping members 214 and 224 are connected to the lower ends of the clamping rods 213 and 223. The clamping member 214 of the first clamping part 210 has a first clamping surface 211 and a supporting surface 212, and the clamping member 224 of the second clamping part 220 has a second clamping surface 221 and a pushing surface 222, thereby realizing the setting of the clamp 200.

[0051] In some embodiments, please refer to Figure 1 The clamping members 214 and 224 extend along the length of the cover plate 400, which can extend the length of the first clamping surface 211, the second clamping surface 221, the ejection surface 222 and the support surface 212, increase the area of ​​the first clamping surface 211, the second clamping surface 221, the ejection surface 222 and the support surface 212, and improve the stability of the interaction between the clamp 200 and the cover plate 400.

[0052] In some embodiments, the clamping members 214 and 224 are angle steel, such as L50 angle steel, and are welded to the corresponding clamping rods 213 and 223, which improves the connection stability between the clamping members 214 and 224 and the clamping rods 213 and 223. In other embodiments, the clamping members and the clamping rods can also be screwed together.

[0053] When the clamping element is an angle steel, the angle steel has a first plate and a second plate (not shown) that are perpendicular to each other and connected. For the angle steel of the first clamping part 210, the first plate is connected to the clamping rod 213, the surface of the first plate close to the second plate forms a first clamping surface 211, and the surface of the second plate close to the first plate forms a supporting surface 212. For the angle steel of the second clamping part 220, the surface of the first plate close to the second plate is connected to the clamping rod 223, the surface of the first plate away from the second plate forms a second clamping surface 221, and the surface of the second plate away from the first plate forms a ejector surface 222.

[0054] In some embodiments, please refer to Figure 3 The second clamping portion 220 is provided with a friction layer 225, and the surface of the friction layer 225 forms a second clamping surface 221. That is, the first plate of the second clamping portion 220 is provided with a friction layer 225 to increase the friction between the second clamping portion 220 and the cover plate 400, thereby improving the stability of the clamp 200 in holding the cover plate 400. In other embodiments, the first plate of the second clamping portion 220 may also be provided with multiple protrusions, which act on the side surface 403 of the cover plate 400, further improving the stability of the clamp 200 in holding the cover plate 400. In some embodiments, the friction layer 225 can be a rubber layer with a thickness of 5 mm.

[0055] In some embodiments, please refer to Figure 2 The middle part of the traction rope 230 is rotatably connected to the clamp end 112 via the rotating component 300, thereby realizing the rotation of the clamp 200 and adjusting the angle of the cover plate 400 to match different target landing points. In some embodiments, the rotating component 300 is not provided, and the angle of the included angle can also be adjusted by adjusting the angle of the vehicle body 100, thereby adjusting the angle of the cover plate 400 to match different target landing points.

[0056] In some embodiments, please refer to Figure 4 The rotating component 300 includes a sleeve 301 and an inner core 303. The sleeve 301 is connected to the clamp end 112. The inner core 303 is located inside the sleeve 301 and is rotatably connected to the sleeve 301 via a thrust ball bearing 305. The lower end of the inner core 303 extends out of the sleeve 301 and is connected to the middle of the traction rope 230, thereby enabling relative rotation between the inner core 303 and the sleeve 301. The axes of both the sleeve 301 and the inner core 303 are arranged vertically, allowing the clamp 200 to rotate relative to the frame 110. The rotating component 300 can rotate 360°, enabling the multi-directional installation of the cover plate 400 on the transfer trolley with human assistance.

[0057] In some embodiments, the upper end of the sleeve 301 is provided with a first connecting plate 302, and the first connecting plate 302 has a through hole coaxially communicating with the sleeve 301; the upper end of the inner core 303 extends out of the sleeve 301 and is provided with a second connecting plate 304, the outer diameter of the second connecting plate 304 is larger than the inner diameter of the sleeve 301, and it is located above the first connecting plate 302. The inner ring and outer ring of the thrust ball bearing 305 are respectively connected to the second connecting plate 304 and the first connecting plate 302, thereby realizing the installation of the thrust ball bearing 305. The first connecting plate 302 and the second connecting plate 304 can be directly adopted as flanges.

[0058] In some embodiments, the inner diameter of the sleeve 301 can be 60mm to 70mm, and the axial length can be 120mm. The thickness of the first connecting plate 302 can be 8mm to 12mm, for example, 10mm. The inner core 303 can be a sleeve, which can be a DN50 steel pipe with a length of 165mm. The thickness of the second connecting plate 304 can be 8mm to 12mm, for example, 8mm. The outer diameter of the thrust ball bearing 305 can be 78mm, and the inner diameter can be 55mm. A hook can also be provided at the lower end of the inner core 303, and the middle part of the traction rope 230 is threaded through the hook.

[0059] Please see Figure 1The wheel assembly 120 also includes two wheels 122, which are respectively connected to both ends of the axle 121, thereby enabling the vehicle body 100 to move. The wheels 122 can be made of solid rubber tires, which have good elasticity and wear resistance, making them suitable for various road surfaces on construction sites. They are durable and wear-resistant, greatly reducing maintenance costs and inconvenience during use. The rim diameter of the wheel 122 can be 60cm, the tire tread depth can be 2mm, and the tire thickness can be 2cm.

[0060] In some embodiments, the frame 110 can be constructed from welded steel pipes into a triangular structure, providing strong stability and good load-bearing capacity. Using the axle 121 as a fulcrum, it can easily lift and lower heavy concrete slabs 400 using the lever principle. The frame 110 structure can be welded from DN40 steel pipes of Q235B material. The specific dimensions of the frame 110 can be set as needed; for example, the frame 110 is 3.7 meters long and 0.6 meters high. The frame 110 is perpendicular to the wheel 122. Along the length of the frame 110, the distance from the handlebar end 111 to the axle 121 is 2.5 meters, and the distance from the axle 121 to the clamp 200 is 1.2 meters. The frame 110 is 0.6 meters high from the wheel 122 and located at the center of the axle 121. Two 720mm long DN40 steel pipes are used as diagonal braces along the axial direction of the wheel 122 to stabilize the frame 110. DN40 steel pipes of 1.2 meters and 1.6 meters in length are used as diagonal braces along the vertical direction of wheel 122 to form a stable stress structure.

[0061] The working process of the transfer cart provided in this application is as follows:

[0062] Please see Figure 5 After the transfer trolley moves the cover plate 400 to the cable trench attachment, it slowly lifts the handle end 111 to gradually lower the cover plate 400 into position. During the lowering process, the clamp 200 can be manually adjusted to rotate relative to the frame 110, so that the cover plate 400 matches the target position. Please refer to [link to relevant documentation]. Figure 6 When the protruding surface 222 of the second clamping part 220 of the clamp 200 presses against the top surface 401 of the adjacent cover plate 400, the second clamping part 220 is subjected to an upward force and thus stops descending. Please refer to [link / reference]. Figure 7 As the handrail end 111 gradually rises, the first clamping part 210 is basically in a loosened state. A manual, outward horizontal pulling force is then applied to the first clamping part 210 to fully open the clamp 200, allowing the suspended cover plate 400 to fall freely to the template installation point (see...). Figure 8 ).

[0063] This utility model relates to a transfer trolley for transporting and installing cover plates 400. An anti-fall safety device is incorporated into the gravity clamp 200, and in conjunction with adjacent cover plates 400 and the top surface 222, the cover plates 400 are easily unloaded and installed accurately. No manual effort is required to move the cement cover plates 400; simply operating the trolley and providing manual assistance in directional adjustment is sufficient for accurate installation. The entire process is safe, reliable, convenient, and practical. This application enables the transport and one-time installation of heavy cable trench cement cover plates 400, reducing the final step of having multiple people pry the cover plates 400 to their designated positions. The transfer trolley of this application can also be used for transporting municipal curb stones and curb stones.

[0064] In addition, the transfer trolley provided in this application is a standardized product, which is convenient to manufacture and install; it is simple to operate and maintain, easy to operate, saves time and effort, and improves construction efficiency; it also reduces the safety risks of loading heavy cover plates.

[0065] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0066] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", and "counterclockwise" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0067] In this application, unless otherwise expressly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0068] Furthermore, the use of terms such as "first" and "second" in this application is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, features defined with "first" or "second" may explicitly or implicitly include one or more features. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0069] Although embodiments of this application have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the claims and their equivalents.

Claims

1. A transfer trolley for transferring cover plates, characterized in that, The transfer trolley includes: The vehicle body includes a frame and a wheel assembly, the wheel assembly having an axle, and the middle part of the frame being rotatably connected to the axle; the frame has a handrail end and a clamp end arranged opposite to each other along the length of the vehicle body; The clamp includes a traction rope, a first clamping part, and a second clamping part. The two ends of the traction rope are respectively connected to the upper ends of the first clamping part and the second clamping part, and the middle part of the traction rope is connected to the clamping end. The middle parts of the first clamping part and the second clamping part are hinged. The lower end of the first clamping part is provided with a first clamping surface and a supporting surface, and the lower end of the second clamping part is provided with a second clamping surface and a top-out surface; the first clamping surface and the second clamping surface are arranged opposite to each other and act on two opposite sides of the cover plate, the supporting surface acts on the bottom surface of the cover plate, and the top-out surface faces downward.

2. The transfer trolley according to claim 1, characterized in that, The height of the top surface is higher than the height of the support surface.

3. The transfer trolley according to claim 2, characterized in that, When the clamp holds the cover plate, the height difference between the top surface and the support surface is 18mm to 22mm.

4. The transfer trolley according to any one of claims 1-3, characterized in that, Both the first clamping part and the second clamping part include a clamping rod and a clamping member. The upper end of the clamping rod is connected to the traction rope, and the clamping member is connected to the lower end of the clamping rod. The clamping member of the first clamping part has the first clamping surface and the supporting surface, and the clamping member of the second clamping part has the second clamping surface and the ejecting surface; the clamping member extends along the length direction of the cover plate.

5. The transfer trolley according to claim 4, characterized in that, The clamping component is an angle steel, which is welded to the corresponding clamping rod.

6. The transfer trolley according to any one of claims 1-3, characterized in that, The second clamping part is provided with a friction layer, and the surface of the friction layer forms the second clamping surface.

7. The transfer trolley according to any one of claims 1-3, characterized in that, The middle part of the traction rope is rotatably connected to the clamp end via a rotating component.

8. The transfer trolley according to claim 7, characterized in that, The rotating component includes a sleeve and an inner core. The sleeve is connected to the clamp end, and the inner core is located inside the sleeve and is rotatably connected to the sleeve via a thrust ball bearing. The lower end of the inner core extends out of the sleeve and is connected to the middle of the traction rope.

9. The transfer trolley according to claim 8, characterized in that, The upper end of the sleeve is provided with a first connecting plate, and the first connecting plate is provided with a through hole coaxially communicating with the sleeve; the upper end of the inner core is provided with a second connecting plate, the outer diameter of the second connecting plate is larger than the inner diameter of the sleeve, and it is located above the first connecting plate; the inner ring and outer ring of the thrust ball bearing are respectively connected to the second connecting plate and the first connecting plate.

10. The transfer trolley according to claim 9, characterized in that, The inner diameter of the sleeve is 60mm to 70mm, and the thickness of the first connecting plate and the second connecting plate is 8mm to 12mm.

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