Environment-friendly gas insulation PT (potential transformer) cabinet

Abstract

The utility model provides an environment-friendly gas insulation PT cabinet, which comprises a cabinet body and a PT handcart, the PT handcart comprises a base and a pushing part detachably connected with the base, the bottom of the base is provided with symmetrically distributed sliding grooves, the pushing part is provided with guide sliding blocks corresponding to the sliding grooves, and the guide sliding blocks are matched with the sliding grooves to slide in a guiding manner. The side wall of the guide sliding block is provided with a plug pin part capable of extending outwards or retracting inwards, and the groove wall of the sliding groove is provided with a positioning groove corresponding to the plug pin part, and the plug pin part can be inserted into the positioning groove. The base and the pushing part can be integrally connected through positioning and inserting matching of the bolt part and the positioning groove in the inserting process of the guide sliding block and the sliding groove, the pushing part is further provided with a height adjusting mechanism for adjusting the height of the pushing part, and the base and the pushing part can be integrally connected. The firmness and the safety of the handcart in the operation process are ensured; the design that the bolt part can stretch out or retract back facilitates the quick assembly and disassembly of the handcart, and enhances the flexibility of maintenance.

Description

Technical Field

[0001] The utility model relates to an environmentally friendly gas-insulated PT cabinet. Background Art

[0002] For the currently produced center cabinet with a bottom-mounted PT, if the PT is fixedly installed, if the PT, fuse or lightning arrester needs to be repaired after power is supplied, the upper power supply must be cut off, otherwise it will cause a danger of live operation. Another method is to place a PT trolley in the lower cable room of the center cabinet.

[0003] In existing medium-voltage electrical cabinets, the installation of the lower PT trolley is almost always carried out by manpower and installed in the lower cable room of the center cabinet. However, there are significant disadvantages in manually carrying and installing the large and heavy PT trolley. The handling operation is time-consuming and labor-intensive, and often requires the cooperation of multiple people. If the operation is not done properly, the lower PT trolley may fall out of the hands and injure the lifting workers. In addition, the current PT trolley sometimes needs to be raised or lowered during the handling process. The current PT trolley is bulky, difficult to adjust, and difficult to operate, which does not facilitate handling. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides an environmentally friendly gas-insulated PT cabinet.

[0005] To achieve the above-mentioned objectives, the present invention provides an environmentally friendly gas-insulated PT cabinet, a PT trolley arranged in the cabinet body and the cable chamber below the cabinet body, the PT trolley comprising a base and a pushing portion detachably connected to the base, the bottom of the base being provided with symmetrically distributed sliding grooves, the pushing portion being provided with guide sliders corresponding to the sliding grooves for cooperating with the guide sliding thereof, the side walls of the guide sliders being provided with latch portions that can extend outward or retract inward, the groove walls of the sliding grooves being provided with positioning grooves for plugging the latch portions therein, the positioning plug-in cooperation of the latch portion and the positioning groove during the plugging process of the guide slider and the sliding groove being able to form an integrated connection between the base and the pushing portion, the pushing portion being further provided with a height adjustment mechanism for adjusting its height.

[0006] Furthermore, the height adjustment mechanism includes an upper connecting block, a lower connecting block, and a tensioning and closing member that is rotatably connected to the upper connecting block and the lower connecting block respectively, the tensioning and closing member includes two upper support arms and two lower support arms that are relatively arranged, the upper support arms and the lower support arms are movably connected one by one through two hinges, the hinges are cooperated with a transmission screw that can swing and open the tensioning and closing member, one end of the transmission screw is provided with a handle and is rotatably connected to one of its hinges, the other end of the transmission screw is threadedly engaged with another hinge, and the transmission screw drives the two hinges to move closer to or away from each other.

[0007] Furthermore, one end of the transmission screw is connected to a driving wheel for rotation.

[0008] Furthermore, a guide groove is provided at the bottom of the guide slider in the same direction as the moving direction of the latch part, a driving block that can slide along the guide groove is provided on one side of the latch part, and a compression spring is provided in the guide slider to drive the latch part to pop out.

[0009] Furthermore, the pushing portion includes a base plate provided with the guide slider, the base plate is provided with a handle portion for pulling or pushing by hand, and a first magnetic fixing portion and a second magnetic fixing portion for magnetic positioning are provided between the connecting surface of the base plate and the base.

[0010] Furthermore, the upper connecting block is connected to the pushing portion, and the lower connecting block is connected to a universal wheel.

[0011] The beneficial effects of the present invention are as follows: the base is connected to the detachable pushing part, and the sliding groove and the guide slider are plugged and locked to form an integral connection between the base and the pushing part. When installing the PT trolley, as the pushing part is pushed inward, the pushing part and the base are spliced ​​together, so that the PT trolley can be easily moved out of the cable room, thereby achieving the purpose of saving manpower; the pushing part can slide stably along the base, improving the stability and convenience of operation; the plug-in cooperation of the latch part and the positioning groove can realize the integral connection between the base and the pushing part, ensuring the firmness and safety of the trolley during operation; the design of the latch part that can be extended or retracted , which facilitates the rapid assembly and disassembly of the trolley and enhances the flexibility of maintenance; and the setting of the height adjustment mechanism allows the PT trolley to be moved out as a whole for maintenance. During the operation, the height of the pushing part can be adjusted according to different operation requirements, thereby driving the overall height, and adjusted to the position required by the operator for operation. When the PT trolley is reinstalled, the height of the pushing part can be adjusted to the height of the cable room for adaptive installation, so that the PT trolley can adapt to different environments and working conditions, improving the versatility and adaptability of the trolley; improving the convenience of operation, and enhancing the stability and safety of the trolley, providing great convenience for the operation and maintenance of the cable room. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the three-dimensional structure of an embodiment of the utility model;

[0013] Figure 2 It is a partial three-dimensional structural diagram of an embodiment of the present utility model;

[0014] Figure 3 This is a schematic diagram of the bottom structure of an embodiment of the utility model;

[0015] Figure 4 for Figure 3 A schematic diagram of the enlarged structure. DETAILED DESCRIPTION

[0016] The following is a further explanation of the embodiments of the utility model in conjunction with the accompanying drawings: As shown in the figure, an environmentally friendly gas-insulated PT cabinet, a PT trolley is arranged in the cabinet body and the cable room under the cabinet body, and the PT trolley includes a base 1 and a pushing part 2 detachably connected to the base 1, and the bottom of the base 1 is provided with symmetrically distributed sliding grooves 3, and the pushing part 2 is provided with a guide slider 4 corresponding to the sliding groove 3 for cooperating with its guided sliding, and the side wall of the guide slider 4 is provided with a latch part 5 that can extend outward or retract inward, and the groove wall of the sliding groove 3 is provided with a positioning groove for its insertion corresponding to the latch part 5, and the positioning insertion cooperation of the latch part 5 and the positioning groove during the insertion process of the guide slider 4 and the sliding groove 3 can form an integrated connection between the base 1 and the pushing part 2, and the pushing part 2 is also provided with a height adjustment mechanism for adjusting its height.

[0017] The height adjustment mechanism includes an upper connecting block 6, a lower connecting block 7, and a tensioning and closing member that is rotatably connected to the upper connecting block 6 and the lower connecting block 7 respectively. The tensioning and closing member includes two upper support arms 8 and two lower support arms 9 that are relatively arranged. The upper support arms 8 and the lower support arms 9 are movably connected in a one-to-one manner through two hinges 10. The hinges 10 are cooperated with a transmission screw 11 that can swing and open the tensioning and closing member. A handle is provided at one end of the transmission screw 11 and is rotatably connected to one of the hinges 10. The other end of the transmission screw 11 is threadedly engaged with the other hinge 10. The transmission screw 11 drives the two hinges 10 to move closer to or away from each other. The transmission screw 11 is rotationally connected to one of the hinges 10 and fixedly connected to the other hinge 10. When the transmission screw 11 is rotated, one hinge 10 and the transmission screw 11 move horizontally relative to each other, and the other hinge 10 and the transmission screw 11 are relatively stationary. One hinge 10 moves closer to or away from the other hinge 10, so that the opening and closing parts are opened and closed synchronously, thereby promoting the extension or shortening of the distance between the upper connecting block 6 and the lower connecting block 7. The operation is simple and the rotating screw can be stopped at any time to fix the position. At the same time, it also has strong supporting capacity.

[0018] One end of the drive screw 11 is connected to a drive wheel 12 for rotation. The drive wheel 12 allows the drive screw 11 to rotate by rotating the wheel, which not only simplifies the operation process, improves operational convenience, and enhances transmission efficiency; the structural design of the drive wheel 12 also facilitates connection with other transmission systems or power sources (such as a motor), enhancing the system's compatibility and scalability.

[0019] The bottom of the guide slider 4 is provided with a guide groove 13 that is consistent with the movement direction of the latch portion 5. A drive block 14 that can slide along the guide groove 13 is provided on one side of the latch portion 5. A compression spring that drives the latch portion 5 to pop out is provided inside the guide slider 4. When the latch portion 5 is aligned with the positioning groove during the insertion process of the guide slider 4, the compression spring can drive the latch portion 5 to pop out to form the insertion, and the drive block 14 can slide within the guide groove 13 to release the insertion relationship between the latch portion 5 and the positioning groove, thereby facilitating the removal of the guide slider 4. The design of the drive block 14 allows it to slide along the guide groove 13 under the action of an external force, thereby pushing the latch portion 5 to pop out and retract, achieving quick and easy connection and separation between the guide slider 4 and the base 1, thereby improving the convenience and safety of operation.

[0020] The pusher 2 includes a base plate 15 on which the guide slider 4 is mounted. The base plate 15 is provided with a handle 16 for manually pulling or pushing. A first magnetic fixing portion 17 and a second magnetic fixing portion 18 for magnetic positioning are located between the base plate 15 and the base 1. The handle 16 provides a grip for the operator, allowing the pusher 2 to be easily pulled or pushed, enabling flexible movement of the PT trolley within the cable compartment. The magnetic fixing portion utilizes magnetic force to quickly connect and position the base plate 15 to the base 1, improving operational convenience and speed.

[0021] The upper connecting block 6 is connected to the pushing portion 2 , and the lower connecting block 7 is connected to a universal wheel.

[0022] The above embodiment is only one preferred embodiment of the present invention. Common changes and substitutions made by those skilled in the art within the scope of the technical solution of the present invention are all included in the protection scope of the present invention.

Claims

1. An environmentally friendly gas-insulated PT cabinet, comprising a cabinet body and a PT trolley arranged in a cable compartment below the cabinet body, characterized in that: The PT trolley includes a base and a pushing part detachably connected to the base. The bottom of the base is provided with symmetrically distributed sliding grooves. The pushing part is provided with a guide slider corresponding to the sliding groove for cooperating with its guiding sliding. The side wall of the guide slider is provided with a latch part that can extend outward or retract inward. The groove wall of the sliding groove is provided with a positioning groove for the latch part corresponding to the latch part for plugging in. The positioning plug-in cooperation of the latch part and the positioning groove during the plug-in process of the guide slider and the sliding groove can form an integrated connection between the base and the pushing part. The pushing part is also provided with a height adjustment mechanism for adjusting its height.

2. The environmentally friendly gas-insulated PT cabinet according to claim 1, characterized in that: The height adjustment mechanism includes an upper connecting block, a lower connecting block, and a tensioning member that is rotatably connected to the upper connecting block and the lower connecting block respectively. The tensioning member includes two upper support arms and two lower support arms that are relatively arranged. The upper support arms and the lower support arms are movably connected in a one-to-one manner through two hinges. The hinges are equipped with a transmission screw that can swing and open the tensioning member. A handle is provided at one end of the transmission screw and is rotatably connected to one of the hinges. The other end of the transmission screw is threadedly engaged with another hinge. The transmission screw drives the two hinges to move closer to or away from each other.

3. The environmentally friendly gas-insulated PT cabinet according to claim 2, characterized in that: One end of the transmission screw is connected to a driving wheel for rotation.

4. The environmentally friendly gas-insulated PT cabinet according to claim 2, characterized in that: A guide groove is provided at the bottom of the guide slider in the same direction as the moving direction of the latch part, a driving block that can slide along the guide groove is provided on one side of the latch part, and a compression spring that drives the latch part to pop out is provided in the guide slider.

5. The environmentally friendly gas-insulated PT cabinet according to claim 2 or 3, characterized in that: The pushing portion includes a bottom plate provided with the guide slider, the bottom plate is provided with a handle portion for pulling or pushing by hand, and a first magnetic fixing portion and a second magnetic fixing portion for magnetic positioning are provided between the connecting surface of the bottom plate and the base.

6. The environmentally friendly gas-insulated PT cabinet according to claim 2, characterized in that: The upper connecting block is connected to the pushing portion, and the lower connecting block is connected to a universal wheel.

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