Portable high-voltage switch cabinet complete machine transportation device

Abstract

The invention relates to the technical field of transportation, in particular to a portable high-voltage switch cabinet complete machine transportation device which comprises a support, a loading box and a connecting assembly, a loading groove used for containing a portable high-voltage switch cabinet is formed in the loading box, and the connecting assembly is arranged between the loading box and a vehicle body. The connecting assembly enables the loading box to rotate around the horizontal axis relative to the vehicle body. The support, the loading box and the connecting assembly are arranged, when the vehicle body moves to the outdoor slope, the loading box rotates around the horizontal axis relative to the support under the gravity action of the loading box and the portable high-voltage switch cabinet in the loading box, so that the loading box is still kept in the vertical state, and although the support is located on the slope, the loading box can still rotate around the horizontal axis; however, the gravity of the loading box and the gravity of the portable high-voltage switch cabinet in the loading box do not generate a component which is downward along the slope, so that the transportation difficulty can be remarkably reduced, and the problem that the portable high-voltage switch cabinet possibly rolls over when passing through the outdoor slope in the whole machine transportation process is effectively solved.

Description

Technical Field

[0001] The invention relates to the field of transportation technology, and in particular to a portable high-voltage switch cabinet complete machine transportation device. Background Art

[0002] Portable high-voltage switchgear is a kind of power equipment designed for temporary, mobile or emergency use. It can be mainly used in outdoor operations, emergency repairs and temporary power supply. Compared with fixed power switchgear, portable high-voltage switchgear has higher cabinet strength and higher protection level. The electronic components inside the switchgear are highly integrated and more compact.

[0003] Portable switchgear is usually used in places with complex environments such as outdoors. These places are limited by road conditions. When a power failure occurs, large mobile transformers cannot be moved to the designated location. At this time, the staff needs to use a transportation device to transport the high-voltage switchgear to the designated location. The existing switchgear transportation devices are divided into two categories. The first category is a modular transportation device. When transporting the high-voltage switchgear, it is necessary to disassemble the electronic components inside the high-voltage switchgear into multiple modules in advance, and then put the multiple modules into the transportation device for transportation. After arriving at the designated location, the multiple modules are assembled on site into the cabinet of the switchgear. The advantage of this transportation method is that when the switchgear is disassembled into modules and then transported, it can safely pass through a variety of complex terrains. The disadvantage is that it needs to be assembled on site, and the work efficiency is low. The second category is a whole machine transportation device. The advantage is that the high-voltage switchgear does not need to be disassembled into multiple modules when used, and the high-voltage switchgear can be transported as a whole machine, which is convenient to use. The disadvantage is that due to the particularity of the high-voltage switchgear, it can only be transported vertically. When the transportation device loaded with the power switchgear passes through complex terrains such as slopes, the transportation of the high-voltage switchgear is difficult, and the high-voltage switchgear is at risk of rollover damage. Summary of the invention

[0004] Based on this, it is necessary to provide a portable high-voltage switch cabinet complete machine transportation device to address the problems existing in the current high-voltage switch cabinet transportation device, so as to solve the problem of difficulty in transporting the portable high-voltage switch cabinet complete machine.

[0005] The above purpose is achieved through the following technical solutions: A portable high-voltage switch cabinet complete machine transportation device comprises: Vehicle body; A loading box, in which a loading slot for placing a portable high-voltage switchgear is provided; A connecting assembly, which is arranged between the loading box and the vehicle body, and enables the loading box to rotate around a horizontal axis relative to the vehicle body; The connection assembly is configured to allow the loading box to rotate around a horizontal axis relative to the vehicle body when the inertial force applied to the loading box is less than a preset value; The connection assembly is configured to restrict the loading box from rotating relative to the vehicle body around a horizontal axis when the inertial force applied to the loading box is greater than or equal to a preset value.

[0006] Preferably, the connecting assembly comprises a rotating shaft, a connecting ring and a stop pin, the rotating shaft is arranged on the outside of the loading box, the connecting ring is arranged on the vehicle body, and the rotating shaft is rotatably sleeved in the connecting ring; A plurality of mounting holes are provided on the outer circumferential surface of the rotating shaft at equal intervals in the circumferential direction, and the mounting holes extend toward the center of the rotating shaft along the radial direction. There are a plurality of limit pins, and the plurality of limit pins correspond to the plurality of mounting holes one by one. The limit pins are elastically connected to the corresponding mounting holes. A plurality of limit holes are provided on the inner circumferential surface of the connecting ring, and the limit holes correspond to the positions of the limit pins. When the inertia force on the loading box is less than a preset value, the limit pin is located in the mounting hole; When the inertia force applied to the loading box is greater than or equal to a preset value, the limit pin extends from the mounting hole so that the limit pin is blocked and matched with the matching limit hole.

[0007] Preferably, the vehicle body comprises two brackets, which are arranged at intervals on the left and right sides of the loading box, and the brackets comprise an upper connecting frame, a lower connecting frame, an intermediate connecting frame and a hydraulic rod, wherein the fixed end of the hydraulic rod is arranged at the upper part of the lower connecting frame, and the telescopic end of the hydraulic rod is arranged at the lower part of the intermediate connecting frame, and the upper connecting frame and the intermediate connecting frame are connected by bolts; The upper connecting frame and the middle connecting frame are both provided with arc grooves inside, the two arc grooves mutually surround an annular groove, and the connecting ring is coaxially fixed in the annular groove.

[0008] Preferably, a plurality of synchronization pins are provided at equal intervals on the inner circumference of the arc-shaped groove, and a plurality of synchronization holes are correspondingly provided on the outer circumference of the connecting ring, and the synchronization pins are clamped in the synchronization holes.

[0009] Preferably, the lower connecting frame includes a side connecting frame, a wheel and a buffer assembly, the wheel is rotatably arranged on the outside of the side connecting frame through the buffer assembly, and the buffer assembly is used to reduce the vibration force transmitted to the side connecting frame by the wheel.

[0010] Preferably, the buffer assembly comprises a connecting block, a guide column, a sliding block, a wheel column, a threaded ring, a first elastic member and a second elastic member, the connecting block is arranged on the outer side of the side connecting frame, a sliding groove is provided on the outer side of the connecting block, the guide column is arranged in the sliding groove, the axis of the guide column is vertical, the sliding block is slidably sleeved with the guide column and is in sliding contact with the sliding groove, the wheel column is arranged on the outer side of the sliding block, the wheel rotation is arranged on the outside of the wheel column, the threaded ring is threadedly connected to one end of the wheel column away from the sliding block, and the inner side surface of the threaded ring is in rotational contact with the wheel; The first elastic member and the second elastic member are coaxially sleeved on two ends of the guide column, and the first elastic member and the second elastic member are in elastic contact with the sliding block.

[0011] Preferably, an intermediate connecting piece is detachably provided on the same side of the two side connecting frames.

[0012] Preferably, one end of the intermediate connecting member is hinged to the side connecting frame, and the other end of the intermediate connecting member is plugged into another side connecting frame on the same side through a connecting pin.

[0013] Preferably, the loading box comprises a box body and a box door, one side of the box body is open, and the lower part of the box door is hinged in the opening.

[0014] Preferably, a plurality of rollers are rotatably provided on the inner side surface of the door, and the plurality of rollers are arranged at intervals along the length direction of the door.

[0015] The beneficial effects of the present invention are: The present invention is provided with a vehicle body, a loading box and a connecting assembly. When the vehicle body is moved onto an outdoor slope, the inertia force acting on the loading box is zero. At this time, the connecting assembly allows the loading box to rotate around a horizontal axis relative to the vehicle body. Therefore, under the action of the gravity of the loading box and the portable high-voltage switchgear inside the loading box, the loading box rotates around the horizontal axis relative to the vehicle body. Therefore, the loading box can still maintain a vertical state. In this way, although the vehicle body is located on the slope, the gravity of the loading box and the portable high-voltage switchgear inside the loading box will not generate a component downward along the slope, so that a thrust that causes the portable switchgear to tip forward or backward will not be generated. Therefore, when the portable high-voltage switchgear is transported by the present device, the difficulty of transportation can be significantly reduced, and the problem that the portable high-voltage switchgear may tip over when the entire machine is transported through an outdoor slope is effectively solved. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a first axonometric diagram of the present invention; Figure 2 is a second axonometric diagram of the present invention; Figure 3 It is a top view of the present invention; Figure 4 for Figure 3 Middle AA section view; Figure 5 for Figure 4 Schematic diagram of the enlarged structure at B in the middle; Figure 6 It is a schematic diagram of the structure of the intermediate connecting member in the present invention; Figure 7 for Figure 6 Axonometric view of the middle CC half section; Figure 8 for Figure 7 Schematic diagram of the enlarged structure at D in the middle; Fig. 9 It is a half-section axonometric view of the connecting ring in the present invention; Fig.10 It is a schematic diagram of the structure of the limiting hole in the present invention.

[0017] in: 100, bracket; 110, upper connecting frame; 120, lower connecting frame; 121, side connecting frame; 122, wheel; 123, buffer assembly; 130, middle connecting frame; 140, hydraulic rod; 150, arc groove; 1231, connecting block; 1232, guide column; 1233, sliding block; 1234, wheel column; 1235, threaded ring; 1236, first elastic member; 1237, second elastic member; 1238, sliding groove; 160. Intermediate connecting member; 161. Connecting pin; 200, loading box; 210, box body; 220, box door; 230, roller; 300, connecting assembly; 310, rotating shaft; 311, mounting hole; 320, connecting ring; 321, limiting hole; 330, limiting pin; 340, third elastic member; 400. Grip the club. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below through embodiments and in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0019] The serial numbers assigned to the components herein, such as "first", "second", etc., are only used to distinguish the objects described and do not have any order or technical meaning. The "connection" and "coupling" mentioned in the present invention, unless otherwise specified, include direct and indirect connections (couplings). In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention.

[0020] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0021] like Figures 1 to 10 As shown, a portable high-voltage switchgear complete machine transportation device includes a vehicle body, a loading box 200 and a connecting assembly 300. A loading slot for placing the portable high-voltage switchgear is opened in the loading box 200. The connecting assembly 300 is arranged between the loading box 200 and the vehicle body. The connecting assembly 300 enables the loading box 200 to rotate around a horizontal axis relative to the vehicle body. The connecting assembly 300 is configured to allow the loading box 200 to rotate around a horizontal axis relative to the vehicle body when the inertial force applied to the loading box 200 is less than a preset value. The connecting assembly 300 is also configured to limit the loading box 200 from rotating around a horizontal axis relative to the vehicle body when the inertial force applied to the loading box 200 is greater than or equal to a preset value.

[0022] When in use, the staff first puts the portable high-voltage switch cabinet into the loading slot of the loading box 200, and then pushes the vehicle body to move on the outdoor road surface. At this time, the vehicle body drives the loading box 200 and the portable high-voltage switch cabinet inside the loading box 200 to move synchronously through the connecting component 300. When the vehicle body moves to the outdoor slope at a constant speed, the loading box 200 is not affected by the inertia force, so the connecting component 300 allows the loading box 200 to rotate around the horizontal axis relative to the vehicle body. Therefore, under the gravity of the loading box 200 and the portable high-voltage switch cabinet inside, the loading box 200 00 rotates around the horizontal axis relative to the vehicle body, so the loading box 200 remains in a vertical state. In this way, although the vehicle body is located on the slope, the gravity of the loading box 200 and the portable high-voltage switchgear inside it will not produce a component downward along the slope, so that a thrust that causes the portable switchgear to tip forward or backward will not be generated. Therefore, when the portable high-voltage switchgear is transported using this device, the difficulty of transportation can be significantly reduced, and the problem of the portable high-voltage switchgear being likely to tip over when the entire portable high-voltage switchgear is transported through an outdoor slope can be effectively solved.

[0023] When the vehicle body is subjected to vibration force due to road bumps during movement, if the vibration force is small, the vibration force transmitted from the vehicle body to the loading box 200 through the connecting component 300 is also small. At this time, the inertial force acting on the loading box 200 is less than the preset value. The connecting component 300 allows the loading box 200 to swing back and forth slightly around the horizontal axis relative to the vehicle body. At this time, the small reciprocating swing of the loading box 200 can weaken the vibration force acting on the portable high-voltage switchgear loaded inside the loading box 200, thereby avoiding damage to the electronic components inside the portable high-voltage switchgear.

[0024] It is understandable that the reason for weakening the small-amplitude vibration force on the switch cabinet is that the outdoor road surface is often uneven and the vehicle body will be frequently affected by small-amplitude vibration force during movement. By further reducing the magnitude of the vibration force, the wiring positions of the electronic components inside the switch cabinet can be prevented from loosening due to frequent vibration.

[0025] When the vehicle body is subjected to a large vibration force during movement, the vibration force transmitted from the vehicle body to the loading box 200 through the connecting assembly 300 is also large. At this time, the inertial force on the loading box 200 is greater than or equal to a preset value. At this time, the connecting assembly 300 limits the rotation of the loading box 200 around the horizontal axis relative to the vehicle body, thereby preventing the portable high-voltage switch cabinet from being damaged due to excessive swinging amplitude.

[0026] It should be added that the reason why the portable high-voltage switch cabinet is easily damaged when the swing amplitude is large is that most of the high-voltage switch cabinets on the market are installed and used upright, and the electronic components inside the switch cabinet, such as circuit breakers, busbars, insulating parts, etc., are arranged in a vertical state. If the loading box 200 is allowed to swing from the vertical state to both sides with a large amplitude, the load-bearing direction of the electronic components will change, causing some components to bear unnecessary pressure. In addition, if the loading box 200 is allowed to swing from the vertical state to both sides with a large amplitude, then some oil-immersed transformers or other liquid-containing devices in the switch cabinet are very easy to leak or shift, directly causing the switch cabinet to fail and be unusable. Therefore, it is necessary to limit the loading box 200 from the vertical state to swing to both sides with a large amplitude. The switch cabinet is occasionally subjected to a large degree of bumpy vibration and is not easy to cause damage to the electronic components inside the switch cabinet. Therefore, in the present invention, when the loading box 200 is subjected to a large bumpy vibration, the connecting assembly 300 limits the loading box 200 to rotate around the horizontal axis relative to the vehicle body.

[0027] It should also be noted that if Figure 2 As shown, the loading box 200 includes a box body 210 and a box door 220. One side of the box body 210 is open, and the lower part of the box door 220 is hinged in the opening.

[0028] When the portable high-voltage switchgear needs to be placed in the loading slot of the loading box 200, the staff rotates the lower part of the box door 220 around the hinge point to the level of the box door 220. At this time, the opening of the box body 210 is opened, and the staff can now load the portable high-voltage switchgear into the loading slot of the box body 210.

[0029] When the portable high-voltage switchgear needs to be taken out from the loading box 200 , the staff also rotates the box door 220 until the box door 220 is horizontal. At this time, the opening of the box body 210 is opened, and the staff can take the portable high-voltage switchgear out from the box body 210 .

[0030] It should be added that, in order to connect the upper part of the box door 220 and the upper part of the opening of the box body 210, specifically, a first magnet can be embedded on both sides of the upper part of the box door 220, and a second magnet can be embedded on both sides of the opening of the box body 210. The magnetic properties of the first magnet and the second magnet are opposite, so that the upper part of the box door 220 and the upper part of the opening of the box body 210 can be connected together through the magnetic attraction of the first magnet and the second magnet. In addition, connecting holes can be opened on both sides of the upper part of the box door 220, and a spring pin can be set on the upper part of the opening of the box body 210, so that the box door 220 can be rotated to a vertical state. At this time, the spring pin on the box body 210 is concentric with the connecting hole on the box door 220. At this time, the spring pin is inserted into the connecting hole, so that the upper part of the box door 220 and the upper part of the opening of the box body 210 can be connected together.

[0031] It should also be noted that if Figure 2 As shown, a plurality of rollers 230 are rotatably provided on the inner side surface of the box door 220, and the plurality of rollers 230 are spaced apart along the length direction of the box door 220. This arrangement is for the convenience of the staff in moving the portable high-voltage switch cabinet out of the loading box 200 and loading the portable high-voltage switch cabinet into the loading box 200.

[0032] In this embodiment, if Figure 4 and Figure 5As shown, the connecting assembly 300 includes a rotating shaft 310, a connecting ring 320 and a limiting pin 330. The rotating shaft 310 is arranged on the outside of the loading box 200, and the connecting ring 320 is arranged on the vehicle body. The rotating shaft 310 is rotatably sleeved in the connecting ring 320. A plurality of mounting holes 311 are opened on the outer circumferential surface of the rotating shaft 310 at equal intervals in the circumferential direction. The mounting holes 311 extend toward the center of the rotating shaft 310 along the radial direction. There are a plurality of limiting pins 330, and the plurality of limiting pins 330 are connected to the plurality of mounting holes 311. In one-to-one correspondence, the limiting pin 330 is elastically connected in the corresponding mounting hole 311. A plurality of limiting holes 321 are provided on the inner circumference of the connecting ring 320. The limiting holes 321 correspond to the positions of the limiting pins 330. When the inertial force applied to the loading box 200 is less than a preset value, the limiting pin 330 is located in the mounting hole 311. When the inertial force applied to the loading box 200 is greater than or equal to the preset value, the limiting pin 330 extends from the mounting hole 311 and stops and cooperates with the matching limiting hole 321.

[0033] When the vibration force applied to the loading box 200 is small, the inertia force applied to the loading box 200 is smaller than the preset value. At this time, the centrifugal force applied to the rotating shaft 310 is small, and the moving distance of the limit pin 330 along the mounting hole 311 is not enough to allow the limit pin 330 to extend from the inside of the mounting hole 311. At this time, the connecting ring 320 and the rotating shaft 310 can rotate relative to each other. At this time, the small reciprocating swing of the loading box 200 weakens the vibration force applied to the portable high-voltage switchgear loaded inside the loading box 200, thereby avoiding damage to the electronic components inside the portable high-voltage switchgear.

[0034] When the vibration force applied to the loading box 200 is large, the inertial force applied to the loading box 200 is greater than or equal to a preset value. At this time, the centrifugal force applied to the rotating shaft 310 is large, and the centrifugal force applied to the rotating shaft 310 overcomes the elastic force of the third elastic member 340 connected thereto, so that the limit pin 330 moves outward along the mounting hole 311 until the limit pin 330 is snapped into the limit hole 321 at the corresponding position. At this time, the connecting ring 320 cannot rotate around the horizontal axis relative to the rotating shaft 310, and therefore the loading box 200 cannot rotate around the horizontal axis relative to the vehicle body, thereby preventing the portable high-voltage switch cabinet from being damaged due to excessive swinging amplitude.

[0035] In this embodiment, if Figure 2-Figure 4As shown, the vehicle body includes two brackets 100, and the two brackets 100 are arranged at intervals on the left and right sides of the loading box 200. The brackets 100 include an upper connecting frame 110, a lower connecting frame 120, an intermediate connecting frame 130 and a hydraulic rod 140. The fixed end of the hydraulic rod 140 is arranged at the upper part of the lower connecting frame 120, and the telescopic end of the hydraulic rod 140 is arranged at the lower part of the intermediate connecting frame 130. The upper connecting frame 110 and the intermediate connecting frame 130 are connected by bolts. The upper connecting frame 110 and the intermediate connecting frame 130 are both provided with arc grooves 150. The two arc grooves 150 are mutually surrounded to form an annular groove, and the connecting ring 320 is coaxially fixed in the annular groove.

[0036] When the limiting hole 321 on the inner circumference of the connecting ring 320 cannot be effectively limited due to excessive wear, the staff removes the bolts between the upper connecting frame 110 and the middle connecting frame 130, and then concentrically puts the connecting ring 320 into the arc groove 150 of the middle connecting frame 130, and finally bolts the upper connecting frame 110 back to the middle connecting frame 130. Therefore, when the limiting hole 321 is excessively worn, only the connecting ring 320 needs to be replaced, and the entire bracket 100 does not need to be replaced, so the replacement cost of consumables can be greatly reduced.

[0037] It can be understood that the hydraulic rod 140 is provided to adjust the position of the bottom of the loading box 200. When loading and unloading the portable high-voltage switchgear, the staff adjusts the position of the bottom of the loading box 200 through the hydraulic rod 140 so that the bottom of the loading box 200 contacts the ground. At this time, the portable high-voltage switchgear can be loaded and unloaded more conveniently.

[0038] Before transporting the portable high-voltage switchgear, the staff adjusts the position of the bottom of the loading box 200 through the hydraulic rod 140 so that a certain distance is left between the bottom of the loading box 200 and the ground, so that the loading box 200 can rotate around the horizontal axis relative to the bracket 100 without causing the bottom of the loading box 200 to collide with the ground.

[0039] It should also be noted that in order to allow the connecting ring 320 to be coaxially fixed in the annular groove, in the present embodiment, specifically, a number of synchronization pins are evenly spaced on the inner circumference of the arc groove 150, and a number of synchronization holes are correspondingly opened on the outer circumference of the connecting ring 320, and the synchronization pins are clamped in the corresponding synchronization holes to keep the connecting ring 320 and the upper connecting frame 110 fixed.

[0040] In this embodiment, if Figure 7 As shown, the lower connecting frame 120 includes a side connecting frame 121, a wheel 122 and a buffer assembly 123. The wheel 122 is rotatably arranged on the outer side of the side connecting frame 121 through the buffer assembly 123. The buffer assembly 123 is used to reduce the vibration force transmitted from the wheel 122 to the side connecting frame 121.

[0041] The buffer assembly 123 is provided between the wheel 122 and the side connecting frame 121 to reduce the vibration force transmitted from the wheel 122 to the side connecting frame 121 , so as to protect the portable high-voltage switch cabinet located inside the loading box 200 .

[0042] In this embodiment, if Figure 7-Figure 8 As shown, the buffer assembly 123 includes a connecting block 1231, a guide column 1232, a sliding block 1233, a wheel column 1234, a threaded ring 1235, a first elastic member 1236 and a second elastic member 1237. The connecting block 1231 is arranged on the outer side of the side connecting frame 121. A sliding groove 1238 is provided on the outer side of the connecting block 1231. The guide column 1232 is arranged in the sliding groove 1238. The axis of the guide column 1232 is vertical. The sliding block 1233 is slidably sleeved with the guide column 1232 and is in sliding contact with the sliding groove 1238. The wheel column 1234 is arranged On the outside of the sliding block 1233, the wheel 122 is rotatably set on the outside of the wheel column 1234, the threaded ring 1235 is threadedly connected to the end of the wheel column 1234 away from the sliding block 1233, and the inner side of the threaded ring 1235 is in rotational contact with the wheel 122, the first elastic member 1236 and the second elastic member 1237 are coaxially sleeved on both ends of the guide column 1232, the first elastic member 1236 is specifically a compression spring, the second elastic member 1237 is specifically a tension spring, and the first elastic member 1236 and the second elastic member 1237 are in elastic contact with the sliding block 1233.

[0043] When the staff loads the portable high-voltage switchgear into the loading box 200, the loading box 200 is forced to move downward. At this time, the side connecting frame 121 moves downward relative to the sliding block 1233, and the elastic deformation of the first elastic member 1236 and the second elastic member 1237 changes. When the loading box 200 is balanced again, the loading box 200 remains stationary.

[0044] When the wheel 122 is subjected to a vibration force, the wheel 122 drives the sliding block 1233 to move along the axis of the guide column 1232. At this time, the elastic deformation of the second elastic member 1237 and the first elastic member 1236 changes. At this time, part of the vibration force exerted on the wheel 122 is converted into the elastic potential energy of the first elastic member 1236 and the second elastic member 1237, and the other part of the vibration force is performed by the sliding block 1233 along the sliding groove 1238. Through the energy consumption form of the above two parts, the vibration force exerted on the wheel 122 is finally transmitted to the connecting block 1231, and the vibration force is greatly weakened, thereby achieving the purpose of protecting the portable high-voltage switch cabinet located inside the loading box 200.

[0045] In other embodiments, the lower connecting frame 120 includes a side connecting frame 121 and a wheel 122. The wheel 122 is rotatably connected to the outer side of the side connecting frame 121. The tire of the wheel 122 is made of highly elastic rubber, so it can better adapt to uneven roads and reduce the vibration force on the loading box 200. In this embodiment, if Figure 6-Figure 7 As shown, a middle connecting member 160 is detachably provided on the same side of the two side connecting frames 121 .

[0046] The middle connecting piece 160 is provided to connect the same side of the two side connecting frames 121 together through the two middle connecting pieces 160 , thereby forming a circumferentially enclosed rectangular structure, so as to improve the overall stability of the bracket 100 .

[0047] When loading and unloading the portable high-voltage switchgear, the staff first removes the intermediate connecting piece 160 on the side corresponding to the box door 220, and then rotates the box door 220 to a horizontal position. Then, the portable high-voltage switchgear can be loaded into the box body 210 or the portable high-voltage switchgear inside the box body 210 can be moved out.

[0048] In this embodiment, if Figure 6-Figure 7 As shown, one end of the intermediate connecting member 160 is hinged on the side connecting frame 121, and the other end of the intermediate connecting member 160 is inserted into another side connecting frame 121 on the same side through a connecting pin 161.

[0049] When the portable high-voltage switchgear needs to be loaded and unloaded, the staff will remove the connecting pin 161 inserted between the intermediate connecting member 160 and the side connecting frame 121, and then rotate the intermediate connecting member 160 around the hinge axis of the intermediate connecting member 160 and the side connecting frame 121 until the intermediate connecting member 160 no longer interferes with the portable high-voltage switchgear entering the loading box 200 or moving the portable high-voltage switchgear out of the loading box 200. Then the portable high-voltage switchgear can be loaded and unloaded.

[0050] It should also be noted that if Figure 2 As shown, a handle 400 is provided between the two middle connecting frames 130 and on a side facing away from the door 220 . The handle 400 is provided to facilitate the staff to push the bracket 100 to move the bracket 100 outdoors.

[0051] The working principle of the portable high-voltage switch cabinet complete machine transportation device provided in the above embodiment is: When loading and unloading the portable high-voltage switchgear, the staff adjusts the position of the bottom of the loading box 200 through the hydraulic rod 140 so that the bottom of the loading box 200 contacts the ground, and then rotates the box door 220 to a horizontal position. At this time, the inner side of the box door 220 with the roller 230 faces upward. At this time, with the assistance of the roller 230, the staff can load and unload the portable high-voltage switchgear more conveniently. After the loading and unloading is completed, the staff rotates the box door 220 to a vertical position, connects the upper part of the box door 220 and the upper part of the opening of the box body 210 together, and then adjusts the position of the bottom of the loading box 200 through the hydraulic rod 140 so that a certain distance is left between the bottom of the loading box 200 and the ground, so that the loading box 200 can be moved around the water relative to the bracket 100. The horizontal axis can be rotated without causing the bottom of the loading box 200 to collide with the ground. During transportation, when the bracket 100 is moved to the outdoor slope, the inertia force on the loading box 200 is zero. At this time, the connecting assembly 300 allows the loading box 200 to rotate around the horizontal axis relative to the bracket 100. Therefore, under the action of the gravity of the loading box 200 and the portable high-voltage switchgear inside it, the loading box 200 rotates around the horizontal axis relative to the bracket 100, so the loading box 200 still maintains a vertical state. In this way, although the bracket 100 is located on the slope, the gravity of the loading box 200 and the portable high-voltage switchgear inside it will not produce a component downward along the slope, so that there will be no force that prompts the portable switchgear to move forward or backward. The thrust of the backward tipping, therefore, when the portable high-voltage switch cabinet is transported by the present device, the difficulty of transportation can be significantly reduced, and the problem of the portable high-voltage switch cabinet being difficult to transport when the whole machine is transported through an outdoor slope is effectively solved. When the vibration force on the loading box 200 is small, the inertia force on the loading box 200 is less than the preset value. At this time, the centrifugal force on the rotating shaft 310 is small, and the moving distance of the limit pin 330 along the mounting hole 311 is not enough to make the limit pin 330 extend from the inside of the mounting hole 311. At this time, the connecting ring 320 and the rotating shaft 310 can rotate relative to each other. At this time, the small reciprocating swing of the loading box 200 weakens the portable high-voltage switch loaded inside the loading box 200. The vibration force applied to the cabinet is used to avoid damage to the electronic components inside the portable high-voltage switch cabinet. When the vibration force applied to the loading box 200 is large, the inertia force applied to the loading box 200 is greater than or equal to the preset value. At this time, the centrifugal force applied to the rotating shaft 310 is large, and the centrifugal force applied to the rotating shaft 310 overcomes the elastic force of the third elastic member 340 connected thereto, so that the limit pin 330 moves outward along the mounting hole 311 until the limit pin 330 is connected to the limit hole 321 at the corresponding position. At this time, the connecting ring 320 cannot rotate around the horizontal axis relative to the rotating shaft 310. Therefore, the loading box 200 cannot rotate around the horizontal axis relative to the bracket 100, thereby preventing the portable high-voltage switch cabinet from being damaged due to excessive swinging amplitude.

[0052] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, 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.

[0053] The above-described embodiments only express several implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. It should be pointed out that, for a person of ordinary skill in the art, several modifications and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the attached claims.

Claims

1. A portable high-voltage switch cabinet complete machine transportation device, characterized in that: include: Vehicle body; A loading box, in which a loading slot for placing a portable high-voltage switchgear is provided; A connecting assembly, which is arranged between the loading box and the vehicle body, and enables the loading box to rotate around a horizontal axis relative to the vehicle body; The connection assembly is configured to allow the loading box to rotate around a horizontal axis relative to the vehicle body when the inertial force applied to the loading box is less than a preset value; The connection assembly is configured to restrict the loading box from rotating relative to the vehicle body around a horizontal axis when the inertial force applied to the loading box is greater than or equal to a preset value.

2. A portable high-voltage switch cabinet complete machine transportation device according to claim 1, characterized in that: The connecting assembly comprises a rotating shaft, a connecting ring and a limit pin, wherein the rotating shaft is arranged outside the loading box, the connecting ring is arranged on the vehicle body, and the rotating shaft is rotatably sleeved in the connecting ring; A plurality of mounting holes are provided on the outer circumferential surface of the rotating shaft at equal intervals in the circumferential direction, and the mounting holes extend toward the center of the rotating shaft along the radial direction. There are a plurality of limit pins, and the plurality of limit pins correspond to the plurality of mounting holes one by one. The limit pins are elastically connected to the corresponding mounting holes. A plurality of limit holes are provided on the inner circumferential surface of the connecting ring, and the limit holes correspond to the positions of the limit pins. When the inertia force on the loading box is less than a preset value, the limit pin is located in the mounting hole; When the inertia force applied to the loading box is greater than or equal to a preset value, the limit pin extends from the mounting hole so that the limit pin is blocked and matched with the matching limit hole.

3. A portable high-voltage switch cabinet complete machine transportation device according to claim 2, characterized in that: The vehicle body includes two brackets, which are arranged at intervals on the left and right sides of the loading box. The brackets include an upper connecting frame, a lower connecting frame, an intermediate connecting frame and a hydraulic rod. The fixed end of the hydraulic rod is arranged on the upper part of the lower connecting frame, and the telescopic end of the hydraulic rod is arranged on the lower part of the intermediate connecting frame. The upper connecting frame and the intermediate connecting frame are connected by bolts. The upper connecting frame and the middle connecting frame are both provided with arc grooves inside, the two arc grooves mutually surround an annular groove, and the connecting ring is coaxially fixed in the annular groove.

4. A portable high-voltage switch cabinet complete machine transportation device according to claim 3, characterized in that: A plurality of synchronization pins are evenly spaced on the inner circumference of the arc-shaped groove, and a plurality of synchronization holes are correspondingly opened on the outer circumference of the connecting ring, and the synchronization pins are clamped in the synchronization holes.

5. A portable high-voltage switch cabinet complete machine transportation device according to claim 3, characterized in that: The lower connecting frame comprises a side connecting frame, a wheel and a buffer assembly. The wheel is rotatably arranged on the outer side of the side connecting frame through the buffer assembly. The buffer assembly is used to reduce the vibration force transmitted from the wheel to the side connecting frame.

6. A portable high-voltage switch cabinet complete machine transportation device according to claim 5, characterized in that: The buffer assembly comprises a connecting block, a guide column, a sliding block, a wheel column, a threaded ring, a first elastic member and a second elastic member, wherein the connecting block is arranged on the outer side of the side connecting frame, a sliding groove is provided on the outer side of the connecting block, the guide column is arranged in the sliding groove, the axis of the guide column is vertical, the sliding block is slidably sleeved with the guide column and is in sliding contact with the sliding groove, the wheel column is arranged on the outer side of the sliding block, the wheel rotation is arranged on the outside of the wheel column, the threaded ring is threadedly connected to one end of the wheel column away from the sliding block, and the inner side surface of the threaded ring is in rotational contact with the wheel; The first elastic member and the second elastic member are coaxially sleeved on two ends of the guide column, and the first elastic member and the second elastic member are in elastic contact with the sliding block.

7. A portable high-voltage switch cabinet complete machine transportation device according to claim 5, characterized in that: The same side of the two side connecting frames is detachably provided with an intermediate connecting piece.

8. A portable high-voltage switch cabinet complete machine transportation device according to claim 7, characterized in that: One end of the intermediate connecting member is hinged on the side connecting frame, and the other end of the intermediate connecting member is plugged into another side connecting frame on the same side through a connecting pin.

9. The portable high-voltage switch cabinet complete machine transportation device according to claim 1 is characterized in that: The loading box comprises a box body and a box door, one side of the box body is open, and the lower part of the box door is hinged in the opening.

10. A portable high-voltage switch cabinet complete machine transportation device according to claim 9, characterized in that: The inner side surface of the box door is rotatably provided with a plurality of rollers, and the plurality of rollers are arranged at intervals along the length direction of the box door.

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