Transfer trolley

Abstract

The utility model relates to a transfer trolley. The transfer trolley is used for the switch cabinet, the transfer trolley comprises at least two supporting structures, each supporting structure comprises a first face and a second face which are opposite, and the first faces are used for bearing the switch cabinet; the at least two supporting structures comprise a first supporting structure and a second supporting structure which are arranged in a spaced mode in the first direction; the at least two wheel assemblies are arranged corresponding to the at least two supporting structures, and the wheel assemblies are arranged on the second faces of the corresponding supporting structures; the telescopic assembly comprises a first telescopic pipe and a second telescopic pipe, one end of the first telescopic pipe is sleeved with one end of the second telescopic pipe, the second telescopic pipe is movably connected with the first telescopic pipe in the first direction, the other end of the first telescopic pipe is connected with the first supporting structure, and the other end of the second telescopic pipe is connected with the second supporting structure. Therefore, the transfer trolley provided by the utility model can reduce the transfer difficulty of the switch cabinet.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of transfer trolley, in particular to a transfer trolley. BACKGROUND

[0002] The high-low voltage switch cabinet is an electrical equipment, mainly used for connecting high or low voltage cables to ensure the safety of electricity.

[0003] In the related art, the high-low voltage switch cabinet includes a cabinet body, which is placed on the ground for production and processing. The cabinet body is lifted by a travelling crane to transfer the cabinet body to the next process, to combine the cabinet or to move to other processing areas. However, the transfer of the cabinet body is difficult. CONTENT OF THE UTILITY MODEL

[0004] Therefore, it is necessary to provide a transfer trolley, which can reduce the difficulty of transferring the switch cabinet.

[0005] The present application provides a transfer trolley for a switch cabinet, which includes:

[0006] At least two support structures, including opposite first and second faces, the first face being used to carry the switch cabinet; the at least two support structures include first and second support structures arranged at intervals along a first direction; at least two wheel assemblies corresponding to the at least two support structures, the wheel assembly being arranged on the second face of the corresponding support structure;

[0007] A telescopic assembly including a first telescopic pipe and a second telescopic pipe, one end of the second telescopic pipe being sleeved outside one end of the first telescopic pipe and being movably connected to the first telescopic pipe along the first direction, the other end of the first telescopic pipe being connected to the first support structure, and the other end of the second telescopic pipe being connected to the second support structure.

[0008] The transfer trolley provided by the present application can place the cabinet body bottom frame on the transfer trolley when the cabinet body is framed, and can perform cabinet assembly, internal component assembly, copper bar installation, secondary wiring, electrical testing, product packaging process, cabinet combination (for example, on-site cabinet combination without other equipment assistance), and finished product delivery on the transfer trolley, so that the switch cabinet processing in the factory building is not affected by factors such as span and crane limitation, the difficulty of transferring the cabinet body of the switch cabinet can be reduced, the crane lifting operation can be replaced, the safety risk can be reduced, the transfer efficiency can be improved, the flexibility is high, the safety factor is improved, the production site can distinguish the cabinet bodies in different processing stages, and management is facilitated.

[0009] In one embodiment, the telescopic assembly includes a limiting piece, a through hole is provided on the side wall of the first telescopic pipe, the limiting piece is movably arranged in the through hole, and part of the limiting piece is arranged in the first telescopic pipe;

[0010] The second telescopic pipe is internally provided with a telescopic channel, one end of the first telescopic pipe is arranged in the telescopic channel, and a plurality of limiting holes are arranged on the side wall of the second telescopic pipe and are spaced apart along the first direction, and the limiting holes are communicated with the telescopic channel.

[0011] The telescopic assembly is configured to, in the limiting state, the limiting member is arranged in one of the limiting holes.

[0012] In one of the embodiments, the limiting member comprises a first limiting part and a second limiting part connected with each other, the first limiting part is movably arranged in the through hole, and the second limiting part is arranged in the first telescopic pipe.

[0013] The telescopic assembly comprises an elastic member, the elastic member is arranged in the first telescopic pipe and connected with the first telescopic pipe and the limiting member, and the elastic member is used to drive the limiting member to move in the direction from the second limiting part to the first limiting part.

[0014] In one of the embodiments, the supporting structure is provided with a positioning member, at least part of the positioning member is arranged on the side of the first surface away from the second surface, and the positioning member is arranged in the positioning hole of the switch cabinet.

[0015] In one of the embodiments, the supporting structure comprises a bottom plate and an anti-skid cushion pad, and the surface of the anti-skid cushion pad away from the bottom plate is configured as the first surface.

[0016] The elastic modulus of the anti-skid cushion pad is smaller than the elastic modulus of the bottom plate.

[0017] In one of the embodiments, the anti-skid cushion pad comprises a plurality of sub-pads arranged away from the bottom plate, and the elastic modulus of the plurality of sub-pads increases in sequence away from the bottom plate.

[0018] In one of the embodiments, the positioning member on the first supporting structure is a first positioning member, the distance between the surface of the first supporting structure away from the second supporting structure and the first positioning member is smaller than the distance between the surface of the first supporting structure close to the second supporting structure and the first positioning member.

[0019] And / or, the positioning member on the second supporting structure is a second positioning member, the distance between the surface of the second supporting structure away from the first supporting structure and the second positioning member is smaller than the distance between the surface of the second supporting structure close to the first supporting structure and the second positioning member.

[0020] And / or, on the supporting structure, the side surface of the supporting structure comprises a third surface and a fourth surface oppositely arranged along a second direction, the distance between the positioning member and the third surface is smaller than the distance between the positioning member and the fourth surface, and the second direction intersects the first direction.

[0021] In one of the embodiments, the positioning member comprises a first extending part, and the first extending part is arranged on the side of the first surface away from the second surface.

[0022] Along a cross section parallel to the first surface, the cross-sectional area of ​​the end of the first extension away from the second surface gradually decreases in the direction from the second surface to the first surface;

[0023] And / or, the first extension is arc-shaped; or, the first extension extends in a direction perpendicular to the first surface.

[0024] In one embodiment, the support structure is provided with mounting holes that penetrate the support structure along the direction from the first surface to the second surface;

[0025] The mounting hole extends in a direction parallel to the first surface. The positioning member includes a first extension and a second extension connected together. The first extension is located on the side of the first surface away from the second surface. The second extension passes through the mounting hole and is movably connected to the support structure along the extension direction of the mounting hole. Along the extension direction perpendicular to the mounting hole, the size of the first extension is larger than the size of the mounting hole.

[0026] And / or, the support structure has multiple mounting holes, and the positioning element passes through one of the mounting holes.

[0027] In one embodiment, the plurality of limiting holes include a first limiting hole and a second limiting hole, and the first limiting hole and the second limiting hole are arranged along the direction from the first support structure to the second support structure;

[0028] The first support structure has a first fitting part on the side facing the second support structure, and the second support structure has a second fitting part on the side facing the first support structure; when the limiting member passes through the first limiting hole, the second fitting part and the first fitting part are spaced apart along the first direction; when the limiting member passes through the second limiting hole, the first fitting part and the second fitting part fit together. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the transfer vehicle in the second limit state provided in the embodiment of this application.

[0030] Figure 2 This is a top view of the transfer vehicle in the second limit state provided in the embodiment of this application.

[0031] Figure 3 This is a schematic diagram of the transfer vehicle in the first limit state provided in the embodiment of this application.

[0032] Figure 4 This is a top view of the transfer vehicle in the first limit state provided in the embodiment of this application.

[0033] Explanation of reference numerals in the attached figures:

[0034] 100. Transfer vehicle; 110. Support structure; 110a. First support structure; 110b. Second support structure; 111. First surface; 113. Base plate; 114. Anti-slip buffer pad; 120. Wheel assembly; 121. Wheel; 122. Mounting component; 130. Telescopic assembly; 131. First telescopic tube; 132. Second telescopic tube; 133. Limiting component; 140. Positioning component; 141. First positioning component; 142. Second positioning component. Detailed Implementation

[0035] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0036] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are 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, and therefore should not be construed as a limitation of this application.

[0037] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0038] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0039] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0040] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0041] In related technologies, high and low voltage switchgear includes a cabinet, which is placed on the ground for production and processing.

[0042] However, when the cabinet needs to be transferred to the next process, merged, or moved to other processing areas, two or more people are required to use a crane for transportation, which makes the transfer of the cabinet difficult, consumes a lot of time, is inefficient, and poses certain safety risks. In addition, it makes it difficult to distinguish the cabinets at different processing stages on the production site, which is not conducive to management.

[0043] To address the aforementioned issues, this application provides a transfer vehicle that can reduce the difficulty of moving switchgear.

[0044] The following will combine Figures 1-4 The transfer vehicle 100 provided in the embodiments of this application will be described.

[0045] This application provides a transfer vehicle 100 for transferring switch cabinets. The switch cabinet includes a cabinet body. For example, the transfer vehicle 100 is used to transfer the cabinet body of the switch cabinet.

[0046] See Figure 1 The transfer vehicle 100 includes at least two support structures 110, each including a first support structure 110a and a second support structure 110b spaced apart along a first direction X. Each support structure 110 includes a first surface 111 and a second surface facing each other, which can be positioned opposite each other along a third direction Z. The first surface 111 is used to support the cabinet of the switchgear. The transfer vehicle 100 includes at least two wheel assemblies 120, each corresponding to one of the support structures 110, with the wheel assemblies 120 located on the second surface of the corresponding support structure 110.

[0047] In this embodiment, the correspondence between A and B can refer to one A corresponding to at least one B, or one B corresponding to at least one A. This embodiment uses the example of one A corresponding to one B. For example, the correspondence between wheel assembly 120 and support structure 110 can refer to one wheel assembly 120 corresponding to at least one support structure 110, or one support structure 110 corresponding to at least one wheel assembly 120. This embodiment uses the example of one support structure 110 corresponding to one wheel assembly 120.

[0048] See Figure 1 The transfer vehicle 100 includes a telescopic assembly 130, which is located on the second side. The telescopic assembly 130 includes a first telescopic tube 131 and a second telescopic tube 132. One end of the second telescopic tube 132 is sleeved on the outside of one end of the first telescopic tube 131, and the second telescopic tube 132 and the first telescopic tube 131 are movably connected along the first direction X. This makes the structure of the telescopic assembly 130 relatively simple. By the relative movement between the second telescopic tube 132 and the first telescopic tube 131 along the first direction X, the extension length of the telescopic assembly 130 along the first direction X can be adjusted, realizing the telescopic extension and retraction of the telescopic assembly 130 along the first direction X. The other end of the first telescopic tube 131 is connected to the first support structure 110a, and the other end of the second telescopic tube 132 is connected to the second support structure 110b. The telescopic component 130 can change the distance between the first support structure 110a and the first support structure 110a along the first direction X, thereby adjusting the size of the transfer cart 100 along the first direction X so that the transfer cart 100 can be used for cabinets of different sizes and improve the versatility of the transfer cart 100.

[0049] The transfer vehicle 100 allows the cabinet base frame to be placed on the transfer vehicle 100 during cabinet assembly. Cabinet assembly, internal component assembly, copper busbar installation, secondary wiring, electrical testing, product packaging, cabinet consolidation (e.g., on-site cabinet consolidation without other equipment assistance), and finished product delivery can all be carried out on the transfer vehicle 100. This enables switchgear processing to be carried out in the factory without being affected by factors such as span or crane restrictions. It can reduce the difficulty of transferring switchgear cabinets, replace crane hoisting operations, reduce safety risks, improve transfer efficiency, and provide high flexibility while increasing the safety factor. It also allows the production site to distinguish cabinets at different processing stages, which is beneficial for management.

[0050] For example, the first telescopic tube 131 and the second telescopic tube 132 can be circular tubes, rectangular tubes or tubes of other shapes.

[0051] For example, the switchgear can be a low-voltage switchgear (e.g., a 400V switchgear), a medium-voltage switchgear (e.g., a 10kV switchgear), or a high-voltage switchgear.

[0052] For example, a cabinet can be transported by at least one transfer cart 100. For instance, a cabinet can be transported by one, two, or more than two transfer carts 100. This embodiment illustrates this by using two transfer carts 100 as an example. For instance, the two transfer carts 100 can be arranged along the second direction Y. By adjusting the distance between the transfer carts 100 along the second direction Y, the overall structure formed by the two transfer carts 100 can be adjusted in size along the second direction Y to accommodate cabinets of different sizes. Through the cooperation of the two transfer carts 100 and the telescopic component 130, the overall structure formed by the two transfer carts 100 can be adjusted in size along both the first direction X and the second direction Y, thus improving the versatility of the transfer carts 100.

[0053] In some embodiments, the wheel assembly 120 includes at least one wheel 121. When there are multiple wheels 121, the multiple wheels 121 are spaced apart. For example, there are two wheels 121, which are located at both ends of the corresponding support structure 110 along the second direction Y. These two wheels 121 may be located on both sides of the telescopic assembly 130 along the second direction Y.

[0054] For example, wheel 121 may include a swivel wheel.

[0055] In some embodiments, the wheel assembly 120 includes a brake. The wheel assembly 120 is configured such that, in a locked state, the brake contacts the wheel 121, preventing the wheel 121 from rotating and thus stopping the transfer vehicle 100. Alternatively, the wheel assembly 120 is configured such that, in an unlocked state, the brake is spaced apart from the wheel 121, allowing the wheel 121 to rotate, thereby enabling movement of the transfer vehicle 100.

[0056] For example, during operation, the cabinet can be moved to a designated area and the wheels 121 can be locked by the brake. When it is necessary to change the sequence or merge cabinets, the wheels 121 can be unlocked, which makes the transfer vehicle 100 highly flexible and the transfer of cabinets convenient and quick.

[0057] In some embodiments, see Figure 1 The wheel assembly 120 includes at least one mounting member 122, which is correspondingly disposed with at least one wheel 121. The mounting member 122 is located between the corresponding wheel 121 and the support structure 110. The mounting member 122 can increase the mechanical strength of the support structure 110 and reduce the assembly difficulty between the corresponding wheel 121 and the support structure 110.

[0058] For example, see Figure 1 The transfer vehicle 100 may have a first direction X, a second direction Y, and a third direction Z, all of which are different. The first direction X and the second direction Y can be any two different directions parallel to the first surface 111, and the third direction Z can be any direction intersecting the first surface 111. For example, the first direction X, the second direction Y, and the third direction Z can be perpendicular to each other. For example, the first direction X can be the length direction of the transfer vehicle 100, the second direction Y can be the width direction of the transfer vehicle 100, and the third direction Z can be the thickness direction of the transfer vehicle 100. The length, width, and thickness in the embodiments of this application are merely for descriptive convenience and do not imply any limitation on the dimensions. For example, the width can be greater than, equal to, or less than the length.

[0059] In some embodiments, see Figure 1 The telescopic assembly 130 includes a limiting member 133. A through hole is provided on the side wall of the first telescopic tube 131, and the limiting member 133 is movably inserted into the through hole, with a portion of the limiting member 133 located within the first telescopic tube 131. A telescopic channel is provided within the second telescopic tube 132, and one end of the first telescopic tube 131 passes through the telescopic channel. Multiple limiting holes are provided on the side wall of the second telescopic tube 132 at intervals along a first direction X, and these limiting holes communicate with the telescopic channel. The telescopic assembly 130 is configured such that, in the limited position, the limiting member 133 passes through one of the limiting holes. Thus, by controlling the limiting member 133 to pass through different limiting holes, the telescopic component 130 can be maintained at different required lengths, so that the first support structure 110a and the second support structure 110b are maintained at different required distances. When transferring the cabinet, it can prevent the relative movement of the first support structure 110a and the second support structure 110b from causing the size of the transfer vehicle 100 along the first direction X to deteriorate the size matching of the cabinet to be transferred.

[0060] For example, the number of limiting holes can be any number of two, three, or more than three. This application embodiment uses two limiting holes as an example for illustration.

[0061] For example, the plurality of limiting holes may include a first limiting hole and a second limiting hole, the first limiting hole and the second limiting hole being arranged along the direction from the first support structure 110a to the second support structure 110b, in which case the first limiting hole is closer to the first support structure 110a than the second limiting hole.

[0062] See Figure 3 and Figure 4 When the limiting component 133 ( Figure 1 When the telescopic component 130 is inserted through the first limiting hole, the limiting state of the telescopic component 130 is the first limiting state, and the extension length of the telescopic component 130 along the first direction X is the first length. For example, at this time, the extension length of the transfer car 100 along the first direction X can be 780mm, which is suitable for a cabinet with a width of 800mm.

[0063] See Figure 1 and Figure 2 When the limiting member 133 passes through the second limiting hole, the telescopic assembly 130 is in the second limiting state, and the extension length of the telescopic assembly 130 along the first direction X is the second length. For example, the extension length of the transfer cart 100 along the first direction X can be 580mm, suitable for a cabinet with a width of 600mm. The first length is greater than the second length. Switching between the first and second limiting states allows the telescopic assembly 130 to retract and extend.

[0064] For example, when the transfer vehicle 100 retracts or extends, the limiting member 133 can be pressed inward to prevent the limiting member 133 from affecting the relative movement between the first telescopic tube 131 and the second telescopic tube 132. Then, the first telescopic tube 131 is extended further into or out of the second telescopic tube 132 until the limiting member 133 reaches the desired limiting hole. At this point, the elastic member will automatically push the limiting member 133 outward so that the limiting member 133 extends into the desired limiting hole and locks the telescopic assembly 130, so that the telescopic assembly 130 is maintained at the desired length.

[0065] For example, the limiting member 133 can be a locking pin.

[0066] In some embodiments, the limiting member 133 includes a first limiting portion and a second limiting portion connected together. The first limiting portion is movably disposed in the through hole, and the second limiting portion is disposed in the first telescopic tube 131. The telescopic assembly 130 includes an elastic member disposed in the first telescopic tube 131 and connected to the first telescopic tube 131 and the limiting member 133. The elastic member is used to drive the limiting member 133 to move in the direction from the second limiting portion to the first limiting portion. The elastic force of the elastic member on the limiting member 133 in the direction from the second limiting portion to the first limiting portion drives the limiting member 133 to move outward. When the limiting member 133 and the desired limiting hole are arranged opposite each other, the limiting member 133 can be automatically pushed out by the elastic member and inserted into the limiting hole.

[0067] For example, the size of the second limiting part can be larger than the opening size of the through hole, thereby preventing the limiting member 133 from being completely pushed out of the first telescopic tube 131.

[0068] In some embodiments, see Figure 1 The support structure 110 is provided with positioning members 140. At least part of the positioning members 140 is located on the side of the first surface 111 away from the second surface, that is, at least part of the positioning members 140 protrudes from the first surface 111. When the cabinet is placed on the support structure 110, the positioning members 140 are used to pass through the positioning holes of the cabinet. Through the cooperation of the positioning members 140 and the positioning holes, the cabinet can be fixed, which helps to prevent the cabinet from sliding and tipping over, and improves the stability of the transfer vehicle 100 in transferring the cabinet.

[0069] For example, the positioning hole can be located at the bottom of the cabinet.

[0070] For example, the bottom of the cabinet can be provided with multiple positioning holes, such as four positioning holes. A positioning element 140 is provided on the support structure 110, and there are a total of four positioning elements 140 on the two transfer carts 100. When the cabinet is framed, the bottom frame of the cabinet is placed on the two transfer carts 100, and the four positioning elements 140 are respectively inserted into the four positioning holes to fix the bottom frame of the cabinet. At this time, the wheel assembly 120 can be locked to reduce the difficulty of assembling the cabinet.

[0071] For example, the number of positioning elements 140 on the support structure 110 is at least one, for example, it can be any number of 1, 2, 3 or more. This embodiment of the application is illustrated by taking a single positioning element 140 on the support structure 110 as an example.

[0072] In some embodiments, see Figure 1The support structure 110 includes a base plate 113 and an anti-slip buffer pad 114. The side of the anti-slip buffer pad 114 facing away from the base plate 113 is designated as a first surface 111. The elastic modulus of the anti-slip buffer pad 114 is less than that of the base plate 113. The anti-slip buffer pad 114 helps prevent the cabinet from sliding relative to the transfer cart 100, improves the stability of the transfer cart 100 in transporting the cabinet, and prevents wear and scratches caused by friction at the bottom. In addition, the lower elastic modulus of the anti-slip buffer pad 114 allows it to deform under external force, thereby buffering the force between the cabinet and the base plate 113 and protecting the base plate 113 and the bottom of the cabinet.

[0073] Among them, the elastic modulus can be regarded as an indicator of how easily a material can undergo elastic deformation. The larger the value, the greater the stress required to cause a certain elastic deformation in the material, that is, the greater the material stiffness, which means that under a certain stress, the elastic deformation is smaller.

[0074] For example, the anti-slip cushioning pad 114 can be a rubber pad.

[0075] In some embodiments, the anti-slip buffer pad 114 includes a plurality of sub-pads arranged in a direction away from the base plate 113. The elastic modulus of the plurality of sub-pads increases sequentially in the direction away from the base plate 113, so that the elastic modulus of the sub-pads closer to the cabinet is larger, which is beneficial to improving the structural strength and wear resistance of the sub-pads and to protecting the anti-slip buffer pad 114. In addition, the elastic modulus of the sub-pads farther from the cabinet is smaller, which is beneficial to improving the buffering effect of the anti-slip buffer pad 114.

[0076] In some embodiments, see Figure 1 The positioning element 140 on the first support structure 110a is the first positioning element 141. The distance between the surface of the first support structure 110a away from the second support structure 110b and the first positioning element 141 is smaller than the distance between the surface of the first support structure 110a close to the second support structure 110b and the first positioning element 141. When the cabinet is being transported, the first positioning element 141 can be positioned closer to the edge of the cabinet along the first direction X, which helps to reduce the impact of the first positioning element 141 on the component layout inside the cabinet. It also helps to increase the distance between the first positioning element 141 and the second positioning element 142, which can better prevent the cabinet from tipping over.

[0077] In some embodiments, the positioning element 140 on the second support structure 110b is the second positioning element 142. The distance between the surface of the second support structure 110b away from the first support structure 110a and the second positioning element 142 is smaller than the distance between the surface of the second support structure 110b close to the first support structure 110a and the second positioning element 142. When transferring the cabinet, the second positioning element 142 can be set closer to the edge of the cabinet along the other side of the first direction X, which helps to reduce the impact of the second positioning element 142 on the component layout inside the cabinet. It also helps to increase the distance between the first positioning element 141 and the second positioning element 142, which can better prevent the cabinet from tipping over.

[0078] In some embodiments, the side of the support structure 110 includes a third surface and a fourth surface arranged opposite each other along the second direction Y. The distance between the positioning member 140 and the third surface is less than the distance between the positioning member 140 and the fourth surface. When the cabinet is being transported, the positioning member 140 can be placed closer to the edge of the cabinet along the second direction Y, which helps to reduce the impact of the positioning member 140 on the component layout inside the cabinet. When two transport carts 100 are used to transport a cabinet, the four positioning holes can be set at the four corners of the bottom of the cabinet. The four positioning members 140 of the overall structure formed by the two transport carts 100 are also located at the four corners of the overall structure, so that the distance between any two of the four positioning columns is relatively large, which can better prevent the cabinet from tipping over.

[0079] In some embodiments, the positioning member 140 includes a first extension located on the side of the first surface 111 facing away from the second surface. Along a cross-section parallel to the first surface 111, the cross-sectional area of ​​the end of the first extension facing away from the second surface gradually decreases in the direction from the second surface to the first surface 111. Thus, the tip of the positioning member 140 is relatively sharp, making it easier to insert the positioning member 140 into the positioning hole.

[0080] For example, the first extension is arc-shaped, and the positioning hole is adapted to the shape of the first extension. This helps to improve the assembly stability of the first extension and the positioning hole, and improves the transport stability of the transfer vehicle 100. Alternatively, the first extension extends in a direction perpendicular to the first surface 111, and the first extension is straight, making it easier for the first extension to be inserted into the positioning hole.

[0081] In some embodiments, the support structure 110 is provided with at least one mounting hole, which extends through the support structure 110 along the direction from the first surface 111 to the second surface. The positioning member 140 is inserted into the mounting hole and is detachably connected to the support structure 110. In this way, the positioning member 140 can be replaced after it is damaged, which helps to reduce maintenance costs.

[0082] For example, the mounting holes on the support structure 110 can be any number of 1, 2, 3 or more.

[0083] When there are multiple mounting holes on the support structure 110, the mounting holes are spaced apart, and the positioning member 140 passes through one of the mounting holes. In this way, by providing multiple mounting holes on the support structure 110 and having the positioning member 140 pass through different mounting holes, the position of the positioning member 140 on the support structure 110 can be adjusted, so that the positioning member 140 can be used for more types of cabinets, improving the versatility of the transfer cart 100.

[0084] In some embodiments, the mounting hole extends in a direction parallel to the first surface 111. The positioning member 140 includes a second extension connected to the first extension. The second extension is movably inserted into the mounting hole along its extension direction, meaning it passes through the mounting hole and is movably connected to the support structure 110 along the extension direction of the mounting hole. Thus, by allowing the second extension to move within the mounting hole, the position of the positioning member 140 on the support structure 110 can be adjusted more precisely, making the positioning member 140 applicable to more cabinet models and improving the versatility of the transfer cart 100. Along its extension direction perpendicular to the mounting hole, the size of the first extension is larger than the size of the mounting hole, thus limiting the first extension and preventing it from falling out of the mounting hole.

[0085] In some embodiments, the first support structure 110a has a first fitting portion on the side facing the second support structure 110b, and the second support structure 110b has a second fitting portion on the side facing the first support structure 110a. When the limiting member 133 passes through the first limiting hole, the first fitting portion and the second fitting portion are spaced apart along the first direction X, thus mitigating the contraction effect of the first fitting portion and the second fitting portion on the telescopic assembly 130. When the limiting member 133 passes through the second limiting hole, the first fitting portion and the second fitting portion engage with each other, which can improve the structural stability of the transfer vehicle 100. For example, one of the first fitting portion and the second fitting portion can be a protrusion, and the other can be a groove.

[0086] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0087] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A transfer vehicle, characterized in that, For use with switchgear, the transfer vehicle includes: At least two support structures, including a first surface and a second surface opposite to each other, wherein the first surface is used to support the switch cabinet; the at least two support structures include a first support structure and a second support structure spaced apart along a first direction. At least two wheel assemblies are provided corresponding to the at least two support structures, and the wheel assemblies are disposed on the second surface of the corresponding support structure; The telescopic assembly includes a first telescopic tube and a second telescopic tube. One end of the second telescopic tube is sleeved on the outside of one end of the first telescopic tube and is movably connected to the first telescopic tube along the first direction. The other end of the first telescopic tube is connected to the first support structure, and the other end of the second telescopic tube is connected to the second support structure.

2. The transfer vehicle according to claim 1, characterized in that, The telescopic assembly includes a limiting member. A through hole is provided on the side wall of the first telescopic tube. The limiting member is movably inserted into the through hole, and a portion of the limiting member is disposed in the first telescopic tube. The second telescopic tube is provided with a telescopic channel, one end of the first telescopic tube passes through the telescopic channel, and the side wall of the second telescopic tube is provided with a plurality of limiting holes spaced apart along the first direction, the limiting holes communicating with the telescopic channel; The telescopic component is configured such that, in the limited state, the limiting member passes through one of the limiting holes.

3. The transfer vehicle according to claim 2, characterized in that, The limiting member includes a first limiting part and a second limiting part connected together. The first limiting part is movably inserted into the through hole, and the second limiting part is disposed in the first telescopic tube. The telescopic component includes an elastic element disposed in the first telescopic tube and connected to the first telescopic tube and the limiting element. The elastic element is used to drive the limiting element to move along the direction from the second limiting portion to the first limiting portion.

4. The transfer vehicle according to any one of claims 1-3, characterized in that, The support structure is provided with positioning elements, at least some of which are located on the side of the first surface away from the second surface. The positioning elements are used to pass through the positioning holes of the switch cabinet.

5. The transfer vehicle according to any one of claims 1-3, characterized in that, The support structure includes a base plate and an anti-slip buffer pad, wherein the side of the anti-slip buffer pad facing away from the base plate is configured as the first side; The elastic modulus of the anti-slip buffer pad is less than that of the base plate.

6. The transfer vehicle according to claim 5, characterized in that, The anti-slip buffer pad includes a plurality of sub-pads arranged in a direction away from the base plate, and the elastic modulus of the plurality of sub-pads increases sequentially in the direction away from the base plate.

7. The transfer vehicle according to claim 4, characterized in that, The positioning element on the first support structure is a first positioning element, and the distance between the first positioning element and the surface of the first support structure away from the second support structure is less than the distance between the first positioning element and the surface of the first support structure close to the second support structure. And / or, the positioning element on the second support structure is a second positioning element, and the distance between the surface of the second support structure away from the first support structure and the second positioning element is less than the distance between the surface of the second support structure close to the first support structure and the second positioning element. And / or, on the support structure, the side of the support structure includes a third surface and a fourth surface disposed opposite to each other along a second direction, the distance between the positioning member and the third surface is less than the distance between the positioning member and the fourth surface, and the second direction and the first direction intersect.

8. The transfer vehicle according to claim 4, characterized in that, The positioning element includes a first extension portion, which is disposed on the side of the first surface opposite to the second surface; Along a cross section parallel to the first surface, the cross-sectional area of ​​the first extension at the end away from the second surface gradually decreases in the direction from the second surface to the first surface; And / or, the first extension is arc-shaped; or, the first extension extends in a direction perpendicular to the first surface.

9. The transfer vehicle according to claim 4, characterized in that, The support structure is provided with mounting holes, which penetrate the support structure along the direction from the first surface to the second surface; The mounting hole extends in a direction parallel to the first surface. The positioning member includes a first extension and a second extension connected together. The first extension is located on the side of the first surface opposite to the second surface. The second extension passes through the mounting hole and is movably connected to the support structure along the extension direction of the mounting hole. Along the extension direction perpendicular to the mounting hole, the size of the first extension is larger than the size of the mounting hole. And / or, the mounting holes on the support structure are multiple, and the positioning member passes through one of them. In the mounting hole.

10. The transfer vehicle according to claim 2 or 3, characterized in that, The plurality of limiting holes include a first limiting hole and a second limiting hole, and the first limiting hole and the second limiting hole are arranged along the direction from the first support structure to the second support structure; The first support structure has a first fitting part on the side facing the second support structure, and the second support structure has a second fitting part on the side facing the first support structure; when the limiting member passes through the first limiting hole, the second fitting part and the first fitting part are spaced apart along the first direction; when the limiting member passes through the second limiting hole, the first fitting part and the second fitting part are fitted together.

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