Clamping plate type operating mechanism dismounting auxiliary device

Abstract

The utility model relates to the field of installation and maintenance of operating mechanisms, in particular to an auxiliary dismounting device for a clamping plate type operating mechanism. The clamping plate type operating mechanism disassembly auxiliary device comprises a locking piece, the locking piece is provided with a locking groove in rotation stopping fit with the force transmission face of the output shaft, and the locking piece is further provided with a fixing structure used for being fixed to a rear clamping plate of the operating mechanism or a switch cabinet body so that rotation stopping can be conducted on the output shaft in the disassembly process. The locking groove formed in the locking piece is matched with the force transmission face of the output shaft in a rotation stopping mode to lock the output shaft, at the moment, the output shaft and the rear clamping plate are relatively fixed, the movement of the output shaft cannot be affected no matter how a power mechanism on the operating mechanism acts in the disassembling process, and the disassembling efficiency is improved. Therefore, the problem that the power-on and power-off states of the ring main unit are changed due to the fact that an action structure on the operation mechanism is easily operated by mistake when a clamping plate type operation mechanism is replaced in the prior art is solved.

Description

Technical Field

[0001] The utility model relates to the field of installation and maintenance of operating mechanisms, in particular to a clamping plate type operating mechanism disassembly auxiliary device. Background Art

[0002] Ring main unit is widely used due to its high reliability and small size. Figure 1 As shown, the ring network cabinet includes a cabinet body and a clamping plate type operating mechanism 2 fixedly arranged on the cabinet body 1. The clamping plate type operating mechanism 2 needs to control the moving conductive parts or moving contacts inside the cabinet body, so an output shaft connected to the cabinet body is also provided on the operating mechanism. One end of the output shaft passes through the cabinet body and extends into the cabinet body, and the other end is connected to the operating structure and is controlled by the operating mechanism to move. Gases such as sulfur hexafluoride need to be filled in the cabinet body. In order to avoid leakage, a sealing structure is provided between the operating mechanism and the cabinet body, and the output shaft passes through the sealing structure, that is, the output shaft is also sealed as an operating mechanism. At the same time, since the cabinet body needs to be sealed, the installation of the operating mechanism also needs to be coordinated with it. Generally speaking, the operating mechanism is a clamping plate type operating mechanism.

[0003] Specifically, Figure 2 and Figure 3 As shown, the clamping plate type operating mechanism 2 includes two layers of clamping plates, one of which is fixedly arranged on the cabinet body to form a rear clamping plate 22, and the other clamping plate is fixedly arranged with a plurality of electrical components and action elements, which constitutes a front clamping plate 21, and the front clamping plate and the parts fixed on the front clamping plate constitute a front clamping plate assembly. The cabinet body is provided with welding studs protruding outward from the cabinet body 1, and the rear clamping plate is installed on the cabinet body through the welding studs, and the front clamping plate 22 and the rear clamping plate 21 are fixedly connected by a support column 23. The output shaft 11 passes through the rear clamping plate 22 and extends to the front clamping plate 21 to connect with the action mechanism, and the action mechanism includes two lock tongues for opening and closing the switch, and the two lock tongues are independently arranged. In order to control the lock tongue, an electromagnet 27 is also provided to drive the lock tongue. At the same time, the output shaft 11 needs to be controlled, so a sleeve 24 connected to the output shaft is also provided. That is to say, in the process of the clamp type operating mechanism 2 controlling the action of the ring main unit, the electromagnet 27 first drives the lock tongue, and the lock tongue drives the sleeve 24 to move and then drives the output shaft 11 to rotate. At the same time, because the output shaft 11 needs to transmit torque, the output shaft is generally a hexagonal prism or a groove is set on the cylinder to form a force transmission surface on the output shaft, and the force transmission surface is matched with the sleeve 24 to prevent rotation.

[0004] The operating mechanism on the ring main unit has a complex structure and there is a risk of failure during use. In case of a failure in the operating mechanism, the front clamping plate assembly is usually replaced directly, that is, the support column is directly unscrewed and the entire front clamping plate assembly is replaced.

[0005] During the replacement process, the ring main unit is often connected to the power grid, so the switch state of the ring main unit cannot be changed at will. If the power is kept off before the replacement, the ring main unit needs to be kept off during the replacement process. If it is powered on rashly, there will be safety risks; if it is powered on before the replacement, it needs to be kept on during the replacement process. If it is suddenly powered off, it will cause a sudden power outage downstream, causing economic losses. However, during the replacement process, the action mechanism is easily triggered by mistake, which will cause the power on and off state of the ring main unit to change during the replacement process, making the circuit uncontrollable. Utility Model Content

[0006] The utility model aims to provide a splint-type operating mechanism disassembly auxiliary device for solving the problem in the prior art that when replacing the splint-type operating mechanism, the action structure on the operating mechanism is easily misoperated, resulting in changes in the power-on and power-off states of the ring network cabinet.

[0007] In order to achieve the above-mentioned purpose, the splint type operating mechanism disassembly auxiliary device in the utility model adopts the following technical solutions:

[0008] A clamping plate type operating mechanism disassembly auxiliary device includes a locking piece, on which is provided a locking groove for clamping on the outer periphery of the output shaft of the operating mechanism and cooperating with the force transmission surface of the output shaft to prevent rotation. The locking piece is also provided with a fixing structure for fixing on the rear clamping plate of the operating mechanism or on the switch cabinet body to prevent rotation of the output shaft during the disassembly process.

[0009] Furthermore, the locking member includes a separately arranged clamping member and a fixing member, the locking groove is arranged on the clamping member, the fixing structure is arranged on the fixing member, and the relative positions of the fixing member and the clamping member are fixed during the disassembly process.

[0010] Furthermore, the clamping member is provided with a protruding portion, and the fixing member is provided with a stopping portion for cooperating with the protruding portion to stop rotation when the output shaft rotates to change the upper and lower power states.

[0011] Furthermore, the protruding portion and the stop portion are provided with fastener mounting holes that cooperate with each other.

[0012] Furthermore, the fixing member includes a stop plate and a fixing plate for being fixedly connected to the rear clamping plate, the fixing plate is provided with a first bolt mounting hole, and the stop plate is arranged perpendicular to the fixing plate.

[0013] Furthermore, a connecting plate perpendicular to the fixing plate and the stopping plate is provided between the fixing plate and the stopping plate.

[0014] Furthermore, the clamping member is provided with an avoidance groove for avoiding the shaft sleeve, and the avoidance groove is located on the side of the locking groove.

[0015] Furthermore, the clamping plate type operating mechanism disassembly auxiliary device also includes a stop block fixed on the front clamping plate and used to cooperate with the locking tongue of the operating mechanism to prevent the locking tongue from rotating.

[0016] Furthermore, the stop block is provided with a second bolt mounting hole for cooperating with the process hole on the front clamping plate, so that the stop block can be fixed to the rear clamping plate by bolts.

[0017] Furthermore, the stop block is a square block, and a wedge-shaped surface for cooperating with a locking tongue stop of an operating mechanism is provided on an edge of the stop block.

[0018] The beneficial effects of the utility model are as follows: the utility model pioneers a splint-type operating mechanism disassembly auxiliary device, which locks the output shaft by means of a locking groove on the locking member and a force transmission surface of the output shaft to prevent rotation, and sets the locking member on the rear splint by means of a fixed structure, thereby making it possible to lock the output shaft by leveraging force from the rear splint, that is to say, the output shaft and the rear splint are relatively fixed at this time, and during the disassembly process, no matter how the power mechanism on the operating mechanism moves, it will not affect the movement of the output shaft, thereby solving the problem in the prior art that when replacing the splint-type operating mechanism, it is easy to misoperate the action structure on the operating mechanism, resulting in changes in the power-on and power-off states of the ring network cabinet. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of a ring main unit in the prior art;

[0020] Figure 2 It is a structural schematic diagram of a clamping plate type operating mechanism in the prior art;

[0021] Figure 3 It is a front view of a clamping plate type operating mechanism in the prior art;

[0022] Figure 4 It is a structural schematic diagram of the output shaft of the clamping plate type operating structure in the prior art;

[0023] Figure 5 It is a structural schematic diagram of an embodiment of the splint-type operating mechanism disassembly auxiliary device of the utility model (for the convenience of display, the splint-type operating mechanism is shown);

[0024] Figure 6 It is a front view of an embodiment of the splint-type operating mechanism disassembly auxiliary device of the utility model (for the convenience of display, the splint-type operating mechanism is shown);

[0025] Figure 7 It is a structural schematic diagram of a fixing member in an embodiment of a splint-type operating mechanism disassembly auxiliary device of the utility model;

[0026] Figure 8 It is a structural schematic diagram of the clamping member in the embodiment of the auxiliary device for disassembling the clamping plate type operating mechanism in the utility model;

[0027] Fig. 9 It is a structural schematic diagram of the stop block in the embodiment of the splint type operating mechanism disassembly auxiliary device in the utility model.

[0028] In the figure: 1. cabinet; 11. output shaft; 2. clamping plate type operating mechanism; 21. front clamping plate; 22. rear clamping plate; 23. support column; 24. bushing; 25. opening lock tongue; 26. closing lock tongue; 27. electromagnet; 3. fixing member; 31. fixing plate; 32. stop plate; 33. connecting plate; 34. first bolt mounting hole; 35. first fastener mounting hole; 4. clamping member; 41. locking groove; 42. avoidance groove; 43. second fastener mounting hole; 5. stop block; 51. wedge surface; 52. second bolt mounting hole. DETAILED DESCRIPTION

[0029] The features and performance of the present invention are further described in detail below in conjunction with the embodiments.

[0030] In the auxiliary device for disassembling the clamping plate type operating mechanism of the utility model, the output shaft is locked by arranging a locking member which can be fixed on the rear clamping plate and locks the output shaft. Since the output shaft is the only connecting element between the clamping plate type operating mechanism and the inside of the cabinet, the working state of the electrical cabinet such as the ring network cabinet can be controlled by controlling the rotation of the output shaft, so that the electrical cabinet such as the ring network cabinet can be kept in the corresponding power consumption state, thereby avoiding the occurrence of misoperation.

[0031] In the embodiment 1 of the splint type operating mechanism disassembly auxiliary device of the utility model:

[0032] like Figure 5 , Figure 6 and Figure 8 As shown, the clamping plate type operating mechanism 2 in this embodiment includes a locking member, on which is provided a locking groove 41 for being arranged on the outer periphery of the output shaft 11 and cooperating with the force transmission surface of the output shaft 11 to prevent rotation. The locking member is also provided with a fixing structure for fixing on the rear clamping plate 22. The arrangement of the fixing structure and the locking groove 41 facilitates the connection of the output shaft 11 to the rear clamping plate 22 to prevent the output shaft 11 from rotating.

[0033] Specifically, Figure 5As shown, the locking member includes a separately arranged clamping member 4 and a fixing member 3, a locking groove 41 is arranged on the clamping member 4, and a fixing structure is arranged on the fixing member 3. After the clamping member 4 and the output shaft 11 are locked, the rotation of the output shaft 11 will drive the clamping member 4 to rotate, so in order to complete the locking of the output shaft 11, it is necessary to complete the locking of the clamping member 4. Of course, in other embodiments, the locking member can also be only a single piece that is integrally cast, and the locking groove 41 and the fixing structure are respectively formed on the single piece.

[0034] like Figure 5 and Figure 7 As shown, the fixing member 3 includes a fixing plate 31 and a stop plate 32 perpendicular to the fixing plate 31, the stop plate 32 is used to stop and cooperate with the clamping member 4 to prevent the clamping member 4 from rotating with the output shaft 11, and the fixing plate 31 is used to be fixed with the rear clamping plate 22, so as to provide a stable fixing point for the stop plate 32 and the clamping member 4. Specifically, the fixing plate 31 is a rectangular plate, and the two ends of the rectangular plate are respectively provided with first bolt mounting holes 34 for mounting on the rear clamping plate 22. Since the cabinet 1 and the rear clamping plate 22 are related to the sealing of the cabinet 1, holes cannot be drilled on the cabinet 1 at will, and the bolt mounting holes on the fixing plate 31 are mainly matched with the existing studs on the existing cabinet and the rear clamping plate. In this embodiment, a welding stud is provided on the cabinet 1, and the welding stud directly passes through the rear clamping plate 22 and is exposed, so the first bolt mounting hole 34 on the fixing plate 31 cooperates with the welding stud to complete the fixing of the fixing member 3 on the rear clamping plate 22, and at this time, the first bolt mounting hole 34 constitutes a fixing structure. A connecting plate 33 is provided between the stop plate 32 and the fixing plate 31. Specifically, the connecting plate 33 is L-shaped and is formed integrally with the stop plate 32 and the fixing plate 31. The connecting plate is in contact with the stop plate 32 and the fixing plate 31 and remains vertical. Of course, in other embodiments, the connecting plate 33 may also be provided in other shapes, or when the strength of the stop plate 32 is sufficient, the connecting plate 33 may not be provided. Of course, in other embodiments, the fixing member 3 may also be magnetically attracted to the rear clamping plate 22 to stop the clamping member 4 from rotating.

[0035] like Figure 4 , Figure 5 and Figure 8As shown, the clamping member 4 is provided with a locking groove 41, which is a U-shaped groove. The locking groove 41 is used to be clamped on the outer peripheral surface of the output shaft 11 during disassembly. Since the output shaft 11 is provided with a force transmission surface for anti-rotation connection with the shaft sleeve 24, the U-shaped groove is convenient for using the two groove side walls of the U-shaped groove to cooperate with the force transmission surface for anti-rotation, so as to facilitate the anti-rotation of the output shaft 11. After the clamping member 4 is connected to the output shaft 11, the clamping member 4 needs to be anti-rotated. Specifically, the clamping member 4 is also provided with a protrusion that cooperates with the stop plate 32 for stopping. Accordingly, the stop plate 32 on the fixing member 3 constitutes a stop portion that cooperates with the protrusion for stopping. In the process of stopping, the output shaft 11 needs to be stopped. Since the output shaft 11 enters the closing limit position and the opening limit position respectively during the reciprocating rotation, the output shaft 11 actually rotates between the two limit positions, that is, after the opening or closing movement is completed, the output shaft 11 can only rotate in one direction. Therefore, when the stop plate 32 is set in the rotation direction of the output shaft 11 and the clamping member 4, it can block the movement of the protrusion and complete the relative fixation of the two. Of course, in other embodiments, the protrusion can also be set as a U-shaped structure, and the stop plate 32 is inserted into the U-shaped structure when in use to complete the stop fit.

[0036] like Figure 5 , Figure 7 and Figure 8 As shown, in order to make the connection between the clamping member 4 and the fixing member 3 more secure, a fastener is provided to fix the two together after the stopper cooperation of the two is completed. In this embodiment, a threaded hole for installing a bolt is provided on the protrusion, and a bolt through hole for the bolt to pass through is provided on the stop plate 32, wherein the bolt through hole on the stop plate 32 constitutes a first fastener installation hole 35, and the threaded hole on the protrusion constitutes a second fastener installation hole 43. The two fastener installation holes are respectively matched with the bolts to complete the fastening. Of course, in other embodiments, the fastener installation holes can also be respectively set as pin shaft installation holes, in which case retaining springs are respectively provided at both ends of the pin shaft to fix the clamping member and the fixing member together.

[0037] like Figure 8As shown, in order to realize the setting of the second fastener mounting hole 43, the thickness of the protrusion can be set thicker. However, the clamping member 4 cooperates with the force transmission surface on the output shaft 11, and the force transmission surface mainly cooperates with the shaft sleeve 24 on the operating mechanism, and only a small part is leaked to the outside for the clamping member 4 to use. Therefore, the width of the locking groove 41 of the clamping member 4 cannot be too large, otherwise it will cause it to lose installation space. Therefore, in this embodiment, the clamping member 4 has a stepped structure, wherein the thinner part in the middle of the stepped structure forms a locking groove 41, and the two sides of the locking groove 41 respectively form an avoidance groove 42 for avoiding the shaft sleeve 24 and other components. Specifically, the avoidance groove 42 is set on both sides of the locking groove 41 and the coverage area is larger than the locking groove 41. Of course, in other embodiments, if there is enough space, the avoidance groove 42 may not be set. Or in other embodiments, such as when the locking member is integrally formed, since the fixed connection between the clamping member 4 and the fixing member 3 is not required, the locking member can be made into a relatively thin form as a whole, and the avoidance groove 42 does not need to be provided.

[0038] In the embodiment 2 of the splint type operating mechanism disassembly auxiliary device of the utility model:

[0039] Before disassembly, the locking piece needs to be fixed on the rear splint 22. During the installation of the locking piece on the rear splint 22, the movement of the lock tongue on the action mechanism may be triggered, resulting in misoperation. Therefore, this embodiment is improved on the basis of Embodiment 1, and the locking of the splint-type operating mechanism 2 is completed by providing a stopper for the action mechanism of the rear splint 22 on the rear splint 22.

[0040] Specifically, Figure 6 and Fig. 9 As shown, a stop block 5 is also provided on the front clamping plate 21 to stop the action mechanism to prevent the movement of the lock tongue. Therefore, it is necessary to stop the lock tongue to prevent the movement of the lock tongue. In this embodiment, the stop block 5 is fixedly arranged at the lock tongue to stop and limit the lock tongue. Of course, in this embodiment, the purpose is to keep the switch closed during disassembly to avoid opening the switch, so the stop block 5 is arranged corresponding to the opening lock tongue 25. Of course, in other embodiments, it can also be kept in the opening state during replacement and disassembly to avoid closing caused by misoperation. At this time, the stop block is arranged corresponding to the closing lock tongue 26.

[0041] like Figure 6 and Fig. 9As shown, the stop block 5 needs to be installed on the front clamping plate 21. The front clamping plate 21 is often provided with a process hole for use during the installation process. In this embodiment, the stop block 5 is fixedly installed by using the process hole. The stop block 5 is provided with a second bolt installation hole 52 for matching with the process hole on the front clamping plate 21, and the stop block 5 can be fixed on the front clamping plate 21 by bolts. After the installation of the stop block 5 is completed, the lock tongue needs to be stopped. In this embodiment, the stop block 5 is a square block, and a wedge surface 51 is provided at the corner of the square block. The wedge surface 51 cooperates with the lock tongue stop to complete the stopping of the lock tongue. Of course, in other embodiments, the stop block 5 can also be set as a magnet, and the stop block 5 is locked on the front clamping plate 21 by adsorption on the front clamping plate 21. Or, in other embodiments, the stop block 5 can also be set as a triangular block instead of a square block.

[0042] like Figure 5 and Figure 6 As shown, specifically, during use, when the front splint assembly fails and needs to be replaced, first install the stop block 5 on the front splint 21 to stop the lock tongue and prevent the lock tongue from being misoperated. Then, put the clamping piece 4 on the outer peripheral surface of the output shaft 11 to stop the output shaft 11. Then, fix the fixing piece 3 on the rear splint 22. During the fixing process of the fixing piece 3, it is necessary to cooperate with the welding studs on the cabinet 1, and pay attention to the cooperation between the stop plate 32 of the fixing piece 3 and the protrusion. After the installation of the fixing piece 3 is completed, finally use bolts to fix the fixing piece 3 and the clamping piece 4 together. At this time, the locking of the output shaft 11 is completed and the disassembly operation can be performed. During the disassembly process, the stop block 5 is also removed. At this time, due to the presence of the locking piece, the output shaft will not rotate. After the disassembly is completed, a new front clamping plate assembly needs to be replaced. First, the stopper block 5 is fixed on the new front clamping plate assembly to stop the locking tongue of the front clamping plate assembly. Then, the new front clamping plate assembly is fixed on the rear clamping plate 22 to complete the replacement of the front clamping plate assembly. Then, the device needs to be dismantled. During the dismantling process, the locking member is first dismantled. The specific dismantling sequence is to first disconnect the fixed connection between the fixing member 3 and the clamping member 4, then dismantle the fixing member 3 and the clamping member 4, and finally dismantle the stopper block 5 on the front clamping plate assembly. The replacement of the front clamping plate 21 components can be completed, that is, the replacement of the clamping plate type operating mechanism 2 is completed.

[0043] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. The patent protection scope of the present invention shall be based on the claims. All equivalent structural changes made using the description and drawings of the present invention shall be included in the protection scope of the present invention.

Claims

1. A splint type operating mechanism disassembly auxiliary device, characterized in that: It includes a locking piece, which is provided with a locking groove for being clamped on the outer periphery of the output shaft of the operating mechanism and cooperating with the force transmission surface of the output shaft to prevent rotation. The locking piece is also provided with a fixing structure for fixing on the rear clamping plate of the operating mechanism or on the switch cabinet body to prevent rotation of the output shaft during disassembly.

2. The splint type operating mechanism disassembly auxiliary device according to claim 1, characterized in that: The locking member comprises a separately arranged clamping member and a fixing member, the locking groove is arranged on the clamping member, the fixing structure is arranged on the fixing member, and the fixing member and the clamping member are fixed in relative positions during the disassembly process.

3. The splint type operating mechanism disassembly auxiliary device according to claim 2, characterized in that: The clamping member is provided with a protruding portion, and the fixing member is provided with a stopping portion for cooperating with the protruding portion to stop rotation when the output shaft rotates to change the upper and lower power states.

4. The clamping plate type operating mechanism disassembly auxiliary device according to claim 3 is characterized in that: The protruding portion and the stopping portion are provided with fastener mounting holes which cooperate with each other.

5. The splint type operating mechanism disassembly auxiliary device according to claim 3 or 4, characterized in that: The fixing member comprises a stop plate and a fixing plate for being fixedly connected with the rear clamping plate, the fixing plate is provided with a first bolt mounting hole, and the stop plate is arranged perpendicular to the fixing plate.

6. The clamping plate type operating mechanism disassembly auxiliary device according to claim 5, characterized in that: A connecting plate which is perpendicular to the fixing plate and the stopping plate is arranged between the fixing plate and the stopping plate.

7. The splint type operating mechanism disassembly auxiliary device according to any one of claims 2 to 4, characterized in that: The clamping member is provided with an escape groove for escaping the shaft sleeve, and the escape groove is located at the side of the locking groove.

8. The splint type operating mechanism disassembly auxiliary device according to any one of claims 1 to 4, characterized in that: The clamping plate type operating mechanism disassembly auxiliary device also includes a stop block fixed on the front clamping plate and used for performing a stop cooperation with the locking tongue of the operating mechanism to prevent the locking tongue from rotating.

9. The clamping plate type operating mechanism disassembly auxiliary device according to claim 8, characterized in that: The stop block is provided with a second bolt mounting hole for cooperating with the process hole on the front clamping plate, so that the stop block can be fixed on the rear clamping plate by bolts.

10. The clamping plate type operating mechanism disassembly auxiliary device according to claim 9, characterized in that: The stop block is a square block, and a wedge-shaped surface for cooperating with a locking tongue stop of an operating mechanism is arranged on the edge of the stop block.

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