Circuit breaker transfer tool of middle-mounted switch equipment

Abstract

The utility model relates to the technical field of circuit breaker transfer, and discloses a circuit breaker transfer tool of middle-mounted switch equipment, which comprises a frame body, and a transfer flat plate is arranged above the frame body; the left and right ends of the upper end face of the transfer flat plate are fixedly connected with a left supporting plate and a right supporting plate correspondingly. A front side plate and a rear side plate are arranged on the front end face and the rear end face of the transfer flat plate respectively, through holes allowing the fixing connecting rods to stretch in are formed in the front side plate and the rear side plate, and barbs are arranged at the tail ends of the fixing connecting rods. A rotating column is rotationally connected to the middle of the fixed connecting rod and fixedly connected with the lower end face of the transfer flat plate; a bolt guide rod is arranged on a rear side plate of the transfer flat plate; the positioning alarm mechanism comprises a pressure sensor, a time delay module, a first controller and an alarm module; the first controller is electrically connected with the pressure sensor, the alarm module and the delay module. The pressure sensor is arranged at the end, away from the rear end face of the transfer flat plate, of the bolt guide rod.

Description

Technical Field

[0001] The utility model relates to the technical field of circuit breaker transportation, in particular to a circuit breaker transportation tooling for a medium-mounted switchgear. Background Technique

[0002] With the development of distribution system technology, medium-mounted switchgears have been widely used in the power system due to their compact structure and excellent electrical performance. In the medium-mounted switchgear, the middle part is a circuit breaker chamber, which includes a circuit breaker, a circuit breaker trolley, a circuit breaker trolley guide rail, a connecting rod fixing hole, and a pin positioning hole. The circuit breaker is installed on the circuit breaker trolley, and the circuit breaker can enter and exit the cabinet body through 4 metal pulleys on the left and right sides of the circuit breaker trolley and the guide rail.

[0003] In the actual operation process, the transportation of the circuit breaker is an important task, which is directly related to the safety and reliability of the power system. Therefore, as an important accessory of the medium-mounted switchgear, the design and performance of the circuit breaker transporter are equally crucial.

[0004] At present, although the widely used circuit breaker transporters on the market have the advantages of simple structure, convenient processing and low cost, there are still some significant problems in actual use. Especially in the locking link of the circuit breaker, the existing transporters have the following deficiencies: when the current circuit breaker transporter locks the circuit breaker, there is a lack of effective detection means to confirm whether it is fully locked. Operators usually need to judge the locking state through experience or manual inspection. This method is not only time-consuming and laborious, but also prone to errors. Content of the Utility Model

[0005] The technical problem solved by the utility model is to provide a circuit breaker transportation tooling for a medium-mounted switchgear, which can quickly and accurately determine the locking state when locking with the medium-mounted switchgear, reduce the work difficulty of operators, and improve the transportation efficiency.

[0006] The basic scheme provided by the utility model: a circuit breaker transportation tooling for a medium-mounted switchgear, including a frame body, and a transportation flat plate is arranged above the frame body;

[0007] The left and right ends of the upper end surface of the transportation flat plate are respectively fixedly connected with a left support plate and a right support plate, and the cross sections of the left support plate and the right support plate are L-shaped;

[0008] The front end surface and the rear end surface of the transportation flat plate are respectively provided with a front side plate and a rear side plate, through holes for a fixing connecting rod to extend into are opened on the front side plate and the rear side plate, and a barb is arranged at the end of the fixing connecting rod; a rotating column is rotatably connected to the middle of the fixing connecting rod, and the rotating column is fixedly connected with the lower end surface of the transportation flat plate;

[0009] A latch guide rod is provided on the rear side plate of the transfer flatbed;

[0010] A transfer wheel frame is provided below the frame body, and transfer directional wheels are installed at the bottom end of the transfer wheel frame;

[0011] It also includes a positioning and alarm mechanism, which includes a pressure sensor, a delay module, a first controller, and an alarm module; the first controller is electrically connected to the pressure sensor, the alarm module, and the delay module respectively; the pressure sensor is provided at one end of the latch guide rod away from the rear end face of the transfer flatbed.

[0012] The principle and advantages of the present utility model are as follows: In this solution, when it is necessary to transfer the circuit breaker of the medium-voltage switchgear through the circuit breaker transfer tooling, first, according to the installation height of the circuit breaker on the medium-voltage switchgear, the latch guide rod on the transfer flatbed is adjusted to be at the same horizontal height as the latch positioning hole on the medium-voltage switchgear through the lifting adjustment mechanism, so as to avoid the phenomenon of deformation of the transfer flatbed. Then, the movement of the entire frame body is realized through the transfer directional wheels. By moving, the latch guide rod on the transfer flatbed is matched with the latch positioning hole on the medium-voltage switchgear. At this time, the position of the entire device is determined. In order to better transfer the circuit breaker, the fixed link is also moved so that the barb at the end of the fixed link is fixed and limited with the link fixing hole on the medium-voltage switchgear. At this time, when the circuit breaker is transferred again, the entire device will not move.

[0013] The left support plate and the right support plate are fixedly connected to both sides of the upper end face of the transfer flatbed, and their cross-section is L-shaped, which is used to stabilize the position of the circuit breaker and prevent it from sliding during transportation.

[0014] The pressure sensor is provided at one end of the latch guide rod away from the rear end face of the transfer flatbed, and is used to detect whether the circuit breaker is correctly installed in place. The first controller is used to start the delay module to delay for a period of time when the pressure value is detected by the pressure sensor on the latch guide rod. If the pressure value changes during the delay, the delay is stopped, otherwise the delay is saved until the end. The end signal is sent by the delay module. After the first controller receives the end signal, it starts the alarm module to alarm. At this time, the operator can know that the barb and the link fixing hole have completed the locking cooperation, and inform the operator that the circuit breaker can be carried at this time. Then the corresponding circuit breaker can be manually removed or moved into the corresponding cabinet.

[0015] 1. The design of the L-shaped support plate and the fixed link ensures that the circuit breaker is stable and immovable during handling, reducing the difficulty of manual handling. That is, through the locking effect of the latch guide rod and the fixed link, it is ensured that the tooling will not move during the process of moving the vacuum circuit breaker into and out of the cabinet, resulting in the vacuum circuit breaker falling.

[0016] 2. The introduction of the positioning and alarming mechanism simplifies the process of device installation confirmation. Without manual inspection, it can be known whether the device is installed and locked in place, improving the operation convenience. At the same time, through the positioning and alarming mechanism, the locking effect of the fixed connecting rod can be timely feedback, ensuring the locking reliability. It can quickly and accurately determine the locking state when locking with the medium-mounted switchgear, reducing the work difficulty of the operator and improving the transfer efficiency.

[0017] Furthermore, limit posts are provided at the front end of the upper end surface of the transfer flat. There are two limit posts, which are arranged symmetrically left and right. A tool handle is provided on the front side plate of the transfer flat.

[0018] Beneficial effect: The setting of the limit posts further ensures that the circuit breaker will not fall along the front and back directions during the assembly or transfer process, further providing a locking effect and ensuring the safety of the circuit breaker during the transfer process.

[0019] Furthermore, a lifting and adjusting mechanism is provided between the transfer flat and the vehicle body. The lifting and adjusting mechanism includes lifting and adjusting screw rods arranged between the transfer flat and the frame body. There are four lifting and adjusting screw rods, which are distributed at the four corners of the bottom end of the transfer flat. The top end of the lifting and adjusting screw rod is connected to the bottom end of the transfer flat through a lifting fixed sleeve. The bottom of the lifting and adjusting screw rod is rotatably connected to the frame body. A lifting and adjusting disc is installed on the lifting and adjusting screw rod. The height of the transfer flat is adjusted through the lifting and adjusting disc.

[0020] Beneficial effect: In this solution, when the circuit breaker needs to be transferred, the operator rotates the lifting and adjusting disc to adjust the height of the transfer flat to be the same as the height of the switch cabinet. During the adjustment process, the four lifting and adjusting screw rods rise or fall synchronously to ensure the flat moves smoothly. When the flat reaches the appropriate height, the circuit breaker can be placed smoothly between the left support plate and the right support plate on the transfer flat and locked through the fixed connecting rod and the barb. The lifting and adjusting mechanism ensures the smooth transfer of the circuit breaker, improving the operation safety and efficiency. In addition, due to the simple and fast adjustment process, the work intensity of the operator is reduced and the work efficiency is improved.

[0021] Furthermore, the frame body includes a left side plate, a right side plate, a bottom plate and a top plate. The two ends of the left side plate are respectively fixedly connected to the top plate and the bottom plate. The two ends of the right side plate are respectively fixedly connected to the bottom plate and the top plate. Support columns are also provided between the top plate and the bottom plate. There are two support columns, which are arranged front and back along the upper end surface of the bottom plate.

[0022] A tool tray is provided between the support column and the left side plate.

[0023] Beneficial effects: In this solution, by fixedly connecting the two ends of the left plate and the right plate to the top plate and the bottom plate respectively, a solid frame structure is formed. This design increases the rigidity of the vehicle frame body, improves the overall stability, makes the transfer vehicle more stable during the handling process, and reduces potential safety hazards caused by structural deformation or shaking.

[0024] Two support columns are arranged between the top plate and the bottom plate, and these two support columns are arranged front and back along the upper end surface of the bottom plate. This layout not only enhances the longitudinal stability of the vehicle frame but also improves the compressive resistance of the vehicle frame, ensuring that the vehicle frame will not deform when carrying heavy loads.

[0025] The tool tray arranged between the support column and the left plate can be used to store tools or small parts required for operation. This design enables the operator to access tools at any time without frequently searching for tools, improving work efficiency. At the same time, the tool tray can further enhance the stability of the entire vehicle frame body structure.

[0026] Furthermore, a plurality of pressure sensors are provided, and the pressure sensors are also provided at the rear end of the limit post.

[0027] Beneficial effects: In this solution, a plurality of pressure sensors are provided. In addition to being provided at one end of the plug guide rod away from the rear end face of the transfer flat plate, they are also provided at the rear end of the limit post. The first controller can quickly and accurately judge whether the circuit breaker has been moved into place through the pressure values collected by the pressure sensors provided at the rear end of the limit post, and then the alarm of the alarm module can quickly inform the operator whether the locking and disconnection between this tooling and the medium-voltage switchgear can be carried out at this time.

[0028] Furthermore, the alarm module includes a buzzer and a warning light.

[0029] Furthermore, fixing holes are provided on both the left support plate and the right support plate, and the fixing holes are provided on the side close to the limit post.

[0030] Beneficial effects: The setting of the fixing holes can further cooperate with the limiting of the limit post to further ensure that the circuit breaker will not fall in the front-rear direction during the assembly and transfer process, and at the same time lock the circuit breaker. Description of the Drawings

[0031] Figure 1 It is a schematic structural diagram of the circuit breaker transfer tooling for the medium-voltage switchgear in the first embodiment of the present invention.

[0032] Figure 2 It is a schematic structural diagram of the medium-voltage switchgear in the first embodiment of the present invention.

[0033] Figure 3This is another perspective structural schematic diagram of the center-mounted switchgear in the first embodiment of the present utility model.

[0034] Figure 4 This is another perspective structural schematic diagram of the circuit breaker transfer tooling for the center-mounted switchgear in the first embodiment of the present utility model.

[0035] Figure 5 This is the bottom view of the transfer flat plate in the first embodiment of the present utility model.

[0036] Figure 6 This is the top view of the transfer flat plate in the first embodiment of the present utility model.

[0037] Figure 7 This is a partial view of the installation structure between the circuit breaker transfer tooling and the center-mounted switchgear in the first embodiment of the present utility model. Detailed implementation manners

[0038] The following is a further detailed description through specific implementation manners:

[0039] The markings in the attached drawings of the specification include: circuit breaker 1, connecting rod fixing hole 2, pin positioning hole 3, circuit breaker handcart 4, guide rail 5, transfer flat plate 6, tooling handle 7, identification plate 8, tool tray 9, left side plate 10, bottom plate 11, fixed connecting rod 12, fixing hole 13, limit post 14, support post 15, top plate 16, adjusting disk 17, right side plate 18, transfer directional wheel 19, pin guide rod 20, right support plate 21.

[0040] The embodiment is basically as shown in the attached Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 、 Figure 6 、 Figure 7 shown: A circuit breaker transfer tooling for a center-mounted switchgear, including a vehicle frame body, and a transfer flat plate 6 is arranged above the vehicle frame body;

[0041] The vehicle frame body includes a left side plate 10, a right side plate 18, a bottom plate 11 and a top plate 16. Both ends of the left side plate 10 are fixedly connected to the top plate 16 and the bottom plate 11 respectively, and both ends of the right side plate 18 are fixedly connected to the bottom plate 11 and the top plate 16 respectively; Two support posts 15 are further arranged between the top plate 16 and the bottom plate 11, and the two support posts 15 are arranged front and back along the upper end surface of the bottom plate 11;

[0042] A tool tray 9 is provided between the support column 15 and the left side plate 10. In this embodiment, the two ends of the left side plate 10 are respectively welded and fixed to the top plate 16 and the top plate 16, and the two ends of the right side plate 18 are respectively welded and fixed to the top plate 16 and the bottom plate 11. The support column 15 is also welded and fixed to the top plate 16 and the bottom plate 11. In this embodiment, identification plates 8 of the corresponding company are provided on the corresponding left side plate 10 and right side plate 18.

[0043] A lifting and adjusting mechanism is provided between the transfer flat plate 6 and the vehicle body. The lifting and adjusting mechanism includes lifting and adjusting screws provided between the transfer flat plate 6 and the vehicle frame body. There are four lifting and adjusting screws, which are distributed at the four corners of the bottom end of the transfer flat plate 6. The top end of the lifting and adjusting screw is connected to the bottom end of the transfer flat plate 6 through a lifting fixed sleeve. The bottom of the lifting and adjusting screw is rotatably connected to the vehicle frame body. A lifting and adjusting disc 17 is installed on the lifting and adjusting screw. The height of the transfer flat plate 6 is adjusted by the lifting and adjusting disc 17. In this embodiment, threaded holes are opened on the left and right sides of the upper end surface of the top plate 16 of the vehicle frame body. The threaded holes are in mating connection with the lifting and adjusting screws. The lifting and adjusting screws are rotated into the top plate 16 of the vehicle frame body through the threaded holes.

[0044] The left and right ends of the upper end surface of the transfer flat plate 6 are respectively fixedly connected with a left support plate and a right support plate 21. The cross sections of the left support plate and the right support plate 21 are L-shaped; in this embodiment, both the left support plate and the right support plate 21 are double-layer bent flanges.

[0045] Fixing holes 13 are provided on both the left support plate and the right support plate 21, and the fixing holes 13 are provided on the side close to the limit post 14.

[0046] Limit posts 14 are provided at the front end of the upper end surface of the transfer flat plate 6. There are two limit posts 14, which are arranged symmetrically left and right. Tool handles 7 are provided on the front side plate of the transfer flat plate 6. In this embodiment, there are two tool handles 7, which are arranged symmetrically left and right. After the corresponding circuit breaker 1 reaches the limit post 14, the telescopic rod on the corresponding circuit breaker 1 will just extend into the fixing hole 13, so as to limit and lock the circuit breaker 1 on the transfer flat plate 6, and avoid the problem of the circuit breaker 1 falling during the transfer process.

[0047] The front end face and the rear end face of the transfer flat plate are respectively provided with a front side plate and a rear side plate. Through holes for the fixing link to extend into are opened on the front side plate and the rear side plate. A barb is provided at the end of the fixing link; a rotating column is rotatably connected to the middle of the fixing link, and the rotating column is fixedly connected to the lower end face of the transfer flat plate; in this embodiment, the through hole is provided at the central position of the front end face of the transfer flat plate 6.

[0048] A pin guide rod 20 is provided on the rear end face of the transfer flat plate 6; there are 2 pin guide rods 20 which are symmetrically arranged left and right.

[0049] A transfer wheel frame is provided below the vehicle frame body, and a transfer directional wheel 19 is installed at the bottom end of the transfer wheel frame.

[0050] It further includes a positioning and alarming mechanism, and the positioning and alarming mechanism includes a pressure sensor, a delay module, a first controller and an alarming module; the first controller is electrically connected to the pressure sensor, the alarming module and the delay module respectively;

[0051] There are multiple pressure sensors, and the pressure sensors are arranged at one end of the pin guide rod 20 away from the rear end face of the transfer flat plate 6. The pressure sensor is also arranged at the rear end of the limit post 14.

[0052] When the circuit breaker 1 needs to be transported, the operator first moves this tooling to the vicinity of the medium-voltage switchgear, and then adjusts the height of the transfer flat plate 6 by rotating the lifting adjustment disc 17 according to the height of the pin positioning hole 3 on the medium-voltage switchgear, so that its height is the same as that of the switch cabinet. During the adjustment process, the four lifting adjustment screws rise or fall synchronously to ensure the flat plate moves smoothly until the height of the pin guide rod 20 is the same as that of the pin positioning hole 3. Then, the pin guide rod 20 is inserted into the pin positioning hole 3 by moving. At this time, the fixed connecting rod 12 has extended into the connecting rod fixing hole 2. After that, by moving the fixed connecting rod 12, the barb at the end of the fixed connecting rod 12 is locked and matched with the connecting rod fixing hole 2, so as to realize the locking of the transfer platform and the medium-voltage switchgear. During the process from the pin guide rod 20 extending into the pin positioning hole 3 to the barb being locked and matched with the connecting rod fixing hole 2, the first controller is used to detect the change of the front-end pressure of the pin guide rod 20 through the pressure sensor arranged at the front end of the pin guide rod 20. When the pressure value is detected and the pressure value remains stable, it means that the barb is locked and matched with the connecting rod fixing hole 2. At this time, the alarm module will be activated to give an alarm, informing the operator that the circuit breaker 1 can be carried at this time. At this time, the operator can manually move the circuit breaker 1 out of or into the medium-voltage switchgear. Specifically, for the medium-voltage switchgear, its middle part is the circuit breaker 1 chamber, which includes the circuit breaker 1, the circuit breaker trolley 4, the circuit breaker trolley 4 guide rail 5, the connecting rod fixing hole 2, and the pin positioning hole 3. The circuit breaker 1 is installed on the circuit breaker trolley 4, and the circuit breaker 1 can enter and exit the cabinet body through the 4 metal pulleys on the left and right sides of the circuit breaker trolley 4 and the guide rail 5. During the moving process, the double-layer bent flanges arranged on the left and right of the transfer flat plate 6 can ensure that the circuit breaker 1 will not fall along the left and right sides. At the same time, the limit posts 14 and positioning holes of the left and right devices on the transfer flat plate 6 can ensure that the circuit breaker 1 will not fall in the front and back directions during the transportation process and lock the incoming circuit breaker 1. After the circuit breaker 1 is moved out of or into the medium-voltage switchgear, the fixed connecting rod 12 is moved again to cancel the locking between the barb and the connecting rod fixing hole 2, so as to cancel the locking between this tooling and the medium-voltage switchgear, and then the circuit breaker 1 can be transported. Among them, when the circuit breaker 1 is moved in, the first controller can quickly and accurately judge whether the circuit breaker 1 is moved in place through the pressure value collected by the pressure sensor arranged at the rear end of the limit post 14, and then the alarm of the alarm module can quickly inform the operator whether the locking between this tooling and the medium-voltage switchgear can be disconnected at this time.

[0053] The first controller can be a single-chip microcomputer or a PLC. In this embodiment, an STM32 series single-chip microcomputer is adopted, specifically an STM32H7 high-performance series single-chip microcomputer. The alarm module includes a buzzer and a warning light. In this embodiment, the warning light is a red LED light. The delay module can be implemented by using the timer built in the single-chip microcomputer, or the delay function can be implemented by a 555 chip and its external circuit. In this embodiment, the timer inside the single-chip microcomputer is adopted, and the delay duration is 2 seconds.

[0054] The above are only embodiments of the present utility model. Common knowledge such as specific structures and characteristics in the solution is not described in detail here. Those of ordinary skill in the art know all the common general technical knowledge in the technical field to which the utility model belongs before the application date or the priority date, can know all the existing technologies in this field, and have the ability to apply the conventional experimental means before this date. Those of ordinary skill in the art can, under the inspiration given in this application, combine their own abilities to complete and implement this solution. Some typical well-known structures or well-known methods should not become an obstacle for those of ordinary skill in the art to implement this application. It should be noted that for those skilled in the art, without departing from the structure of the present utility model, several deformations and improvements can still be made, and these should also be regarded as the protection scope of the present utility model, and these will not affect the implementation effect of the present utility model and the practicality of the patent. The protection scope required by this application should be based on the content of its claims, and the specific implementation manners and the like recorded in the specification can be used to interpret the content of the claims.

Claims

1. A transfer tool for a circuit breaker of a center-mounted switchgear, characterized in that: It includes a frame body, and a transfer flat plate is arranged above the frame body; At the left and right ends of the upper end surface of the transfer flat plate, a left support plate and a right support plate are respectively fixedly connected. The cross-sections of the left support plate and the right support plate are L-shaped; On the front end surface and the rear end surface of the transfer flat plate, a front side plate and a rear side plate are respectively arranged. Through holes for a fixing connecting rod to extend into are formed in the front side plate and the rear side plate. A barb is arranged at the end of the fixing connecting rod; A rotating column is rotatably connected to the middle of the fixing connecting rod, and the rotating column is fixedly connected to the lower end surface of the transfer flat plate; A pin guide rod is arranged on the rear side plate of the transfer flat plate; Below the frame body, a transfer wheel frame is arranged, and transfer directional wheels are installed at the bottom end of the transfer wheel frame; It further includes a positioning and alarm mechanism. The positioning and alarm mechanism includes a pressure sensor, a delay module, a first controller, and an alarm module; The first controller is electrically connected to the pressure sensor, the alarm module, and the delay module respectively; The pressure sensor is arranged at one end of the pin guide rod away from the rear end surface of the transfer flat plate.

2. The circuit breaker transfer tooling for a center-mounted switchgear according to claim 1, characterized in that: At the front end of the upper end surface of the transfer flat plate, limit posts are arranged. There are two limit posts and they are arranged symmetrically left and right. A tool handle is arranged on the front side plate of the transfer flat plate.

3. The circuit breaker transfer tooling for a center-mounted switchgear according to claim 2, characterized in that: Between the transfer flat plate and the vehicle body, a lifting and adjusting mechanism is arranged. The lifting and adjusting mechanism includes lifting and adjusting screws arranged between the transfer flat plate and the frame body. There are four lifting and adjusting screws and they are distributed at the four corners of the bottom end of the transfer flat plate. The top end of the lifting and adjusting screw is connected to the bottom end of the transfer flat plate through a lifting fixing sleeve. The bottom of the lifting and adjusting screw is rotatably connected to the frame body. A lifting and adjusting disc is installed on the lifting and adjusting screw. The height of the transfer flat plate is adjusted through the lifting and adjusting disc.

4. The circuit breaker transfer tooling for a center-mounted switchgear according to claim 3, characterized in that: The frame body includes a left side plate, a right side plate, a bottom plate, and a top plate. The two ends of the left side plate are respectively fixedly connected to the top plate and the bottom plate. The two ends of the right side plate are respectively fixedly connected to the bottom plate and the top plate; Between the top plate and the bottom plate, support columns are further arranged. There are two support columns and they are arranged front and rear along the upper end surface of the bottom plate; A tool tray is arranged between the support column and the left side plate.

5. The circuit breaker transfer tooling for a center-mounted switchgear according to claim 4, characterized in that: Multiple pressure sensors are arranged, and the pressure sensors are also arranged at the rear end of the limit post.

6. The circuit breaker transfer tooling for a center-mounted switchgear according to claim 5, characterized in that: The alarm module includes a buzzer and a warning light.

7. The circuit breaker transfer tooling for a center-mounted switchgear according to claim 6, characterized in that: Fixing holes are arranged on both the left support plate and the right support plate, and the fixing holes are arranged on the side close to the limit post.

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