A three-station mechanism for gas insulation

Abstract

The application discloses a three-position mechanism for gas insulation, which comprises a rack and a control device, wherein the control device is installed on the rack, the control device comprises an electric operating assembly, a manual operating assembly and a transmission mechanism, the electric operating assembly or the manual operating assembly controls the state of a three-position switch through the control transmission assembly, the transmission mechanism comprises a power assembly and a transmission assembly, the power assembly comprises a transmission shaft and a transmission screw rod, the input end of the transmission shaft is connected with the transmission assembly, and the output end of the transmission shaft is connected with the main circuit of the three-position switch, the three-position switch of the application integrates manual operation and electric operation and meets different operation requirements, the manual or electric operation transmission shaft and the transmission screw rod directly transmit power to the main circuit of the three-position switch, reduces power loss in the intermediate motion link, and improves the power transmission efficiency.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of switch cabinets, and relates to a three-position mechanism for gas insulation. BACKGROUND

[0002] The three positions of the three-position mechanism are very clear, the middle is an isolation position, and the two ends are respectively a closing position and a grounding position, and the isolation, closing and grounding states of the load switch can be realized through the operation of the three-position mechanism, and the current three-position mechanism is usually complex in structure, unstable in performance and high in manufacturing cost, so the structure of the three-position mechanism needs to be improved. SUMMARY

[0003] The application overcomes the deficiencies of the prior art and provides a three-position mechanism for gas insulation.

[0004] In order to achieve the above-mentioned purpose, the application adopts the following technical scheme: a three-position mechanism for gas insulation, characterized by comprising a rack and a control device, the control device is installed on the rack, the control device comprises an electric operation assembly, a manual operation assembly and a transmission mechanism, the electric operation assembly or the manual operation assembly controls the state of the three-position switch through the control transmission assembly, the transmission mechanism comprises a power assembly and a transmission assembly, the power assembly comprises a transmission shaft and a transmission screw rod, the input end of the transmission shaft is connected with the transmission assembly, and the output end of the transmission shaft is connected with the main circuit of the three-position switch.

[0005] Further, the rack comprises a first mechanism plate and a second mechanism plate, the first mechanism plate and the second mechanism plate are fixedly connected through the rack support column, and the first mechanism plate and the second mechanism plate form a first mounting cavity.

[0006] Further, the electric operation assembly comprises a three-position motor, the three-position motor is installed in the first mounting cavity and is fixedly connected with the second mechanism plate, the output shaft of the three-position motor rotates through the second mechanism plate, and the output shaft located on the outer side of the second mechanism plate is connected with the transmission mechanism.

[0007] Further, the transmission shaft and the transmission screw rod are rotatably connected with the first mechanism plate and the second mechanism plate, the input end and the output end of the transmission shaft respectively rotate through the second mechanism plate and the first mechanism plate, the input end of the transmission screw rod rotates through the second mechanism plate, the output end of the transmission screw rod is rotatably connected with the first mechanism plate, the output end of the transmission shaft is connected with the main circuit of the three-position switch, and the input end of the transmission shaft is connected with the transmission assembly.

[0008] Further, the transmission assembly comprises a transmission gear, a transition gear, an operation gear and a driving gear, the transmission gear, the transition gear, the operation gear and the driving gear are sequentially and meshingly connected in pairs, the transmission gear is fixedly arranged on the output shaft of the three-position motor, the transition gear is rotationally connected with the second mechanism plate, the operation gear is fixedly connected with the input end of the transmission shaft, and the driving gear is fixedly connected with the transmission screw.

[0009] Further, the manual operation assembly comprises a first operation port and a second operation port, the first operation port is fixedly arranged on the input end of the transmission screw or is in an integral structure with the transmission screw, the second operation port is fixedly arranged on the input end of the transmission shaft or is in an integral structure with the transmission shaft, and the transmission shaft or the transmission screw is driven to rotate by manual operation to control the opening and closing of the three-position switch and the grounding operation.

[0010] Further, the linkage device is further arranged, the linkage device is linked with the transmission mechanism, the linkage device comprises a sliding block, the sliding block is slidingly connected with the transmission shaft and is threadedly connected with the transmission screw.

[0011] Further, a push rod is fixedly arranged on the sliding block, the push rod is linked with the auxiliary device, and the auxiliary device outputs the electrical signal of the position of the three-position mechanism.

[0012] In summary, the present application has the advantages that:

[0013] The three-position switch of the present application integrates manual operation and electric operation to meet different operation requirements, the manual or electric operation transmission shaft and transmission screw directly transmit power to the main circuit of the three-position switch, reduce the power loss in the intermediate motion link, and improve the power transmission efficiency; the linkage device is designed, the linkage device is linked with the auxiliary switch, and the electrical signal of the three-position mechanism in different positions is transmitted in time; the selection device is designed to select one of the manual operation mode and the electric operation mode, that is, the electric operation cannot be performed when the manual operation is performed, and the manual operation cannot be performed when the electric operation is performed, and the safety is improved. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is an operation device of the present application.

[0015] Figure 2 It is a three-position mechanism without an indicator plate of the present application.

[0016] Figure 3 It is an installation schematic view of the transmission assembly of the present application.

[0017] Figure 4 It is a selection plate of the present application. DETAILED DESCRIPTION

[0018] Following make the embodiments of the present application more thoroughly understood by specific examples, those skilled in the art can easily understand other advantages and effects of the present application from the disclosure of the specification. The present application can also be implemented or applied by other different embodiments, and various modifications or changes can be made to the details in the specification based on different views and applications without departing from the spirit of the present application. It should be noted that the following examples and features in the examples can be combined with each other without conflict.

[0019] It should be noted that the diagrams provided in the following examples only illustrate the basic concept of the present application in a schematic manner, and only the components related to the present application are shown in the diagrams, not the number, shape and size of the components when actually implemented. The actual implementation of each component may be a random change in type, number and proportion, and the component layout pattern may also be more complex.

[0020] All directional indications (such as up, down, left, right, front, back, transverse, longitudinal,...) in the embodiments of the present application are only used to explain the relative position relationship, movement condition, etc. between the components in a certain posture, and if the certain posture changes, the directional indications will also change accordingly.

[0021] Example one:

[0022] As shown in Figures 1-4 A three-position mechanism for gas insulation includes a rack 310 and a control device 312, the control device 312 includes an electrically operated component, a manually operated component and a transmission mechanism, the electrically operated component or the manually operated component controls the state of the three-position switch through the control transmission component.

[0023] The rack 310 includes a first mechanism plate 3101 and a second mechanism plate 3102, the first mechanism plate 3101 and the second mechanism plate 3102 are fixedly connected through a rack support 3103, the first mechanism plate 3101 and the second mechanism plate 3102 form a first installation cavity, in the embodiment, the first mechanism plate 3101 and the second mechanism plate 3102 are arranged in parallel.

[0024] The electrically operated component includes a three-position motor 3121, the three-position motor 3121 is installed in the first installation cavity and is fixedly connected with the second mechanism plate 3102, the output shaft of the three-position motor 3121 rotates through the second mechanism plate 3102, the output shaft located outside the second mechanism plate 3102 is connected with the transmission mechanism, and power is transmitted through the transmission mechanism to realize the closing and opening operation of the three-position switch.

[0025] The transmission mechanism comprises a power assembly and a transmission assembly. The power assembly comprises a transmission shaft 3145 and a transmission screw rod 3146, both of which are rotatably connected to the first mechanism plate 3101 and the second mechanism plate 3102. The input end of the transmission shaft 3145 is rotatably penetrated through the second mechanism plate 3102 and the first mechanism plate 3101, respectively. The input end of the transmission screw rod 3146 is rotatably penetrated through the second mechanism plate 3102. The output end of the transmission screw rod 3146 is rotatably connected to the first mechanism plate 3101. The output end of the transmission shaft 3145 is connected to the main circuit of the three-position switch. The input end of the transmission shaft 3145 is connected to the transmission assembly. The transmission shaft 3145 receives power transmitted by the transmission assembly and transmits the power to the main circuit of the three-position switch, thereby realizing the opening and closing operation of the three-position switch.

[0026] The transmission assembly is located outside the second mechanism plate 3102 and comprises a transmission gear 3141, a transition gear 3142, an operation gear 3143 and a driving gear 3144. The transmission gear 3141, the transition gear 3142, the operation gear 3143 and the driving gear 3144 are distributed along the transverse direction and are connected in pairs in sequence. The transmission gear 3141 is fixedly arranged on the output shaft of the three-position motor 3121. The output shaft of the three-position motor 3121 drives the transmission gear 3141 to rotate. The transition gear 3142 is rotatably connected to the second mechanism plate 3102. The operation gear 3143 is fixedly connected to the input end of the transmission shaft 3145. The operation gear 3143 drives the transmission shaft 3145 to rotate, thereby realizing the power input of the transmission shaft 3145. The driving gear 3144 is fixedly connected to the transmission screw rod 3146. The driving gear 3144 drives the transmission screw rod 3146 to rotate, thereby realizing the power input of the transmission screw rod 3146. Specifically, the three-position motor 3121 is started to drive the transmission gear 3141 to rotate. The transmission gear 3141 drives the transition gear 3142 to rotate. The transition gear 3142 drives the operation gear 3143 to rotate. The operation gear 3143 drives the driving gear 3144 to rotate, so that the transmission shaft 3145 transmits power to the main circuit of the three-position switch. Through the above, the opening and closing operation of the three-position switch is realized.

[0027] In this embodiment, the three-position switch integrates manual operation and electric operation. The manual operation assembly comprises a first operation port 315 and a second operation port 316. The first operation port 315 is fixedly arranged on the input end of the transmission screw rod 3146 or is in an integral structure with the transmission screw rod 3146. The second operation port 316 is fixedly arranged on the input end of the transmission shaft 3145 or is in an integral structure with the transmission shaft 3145. The transmission shaft 3145 or the transmission screw rod 3146 is directly driven to rotate by manual operation, thereby realizing the opening and closing operation of the three-position switch and the grounding operation.

[0028] In this embodiment, the linear transmission is carried out through the transmission shaft 3145 and the transmission screw 3146, which improves the efficiency of motion transmission.

[0029] The manual operation mode and the electric operation mode of the three-position switch are operated alternatively, that is, the electric operation cannot be carried out when the manual operation is carried out, and the manual operation cannot be carried out when the electric operation is carried out. To achieve this purpose, the three-position mechanism 31 comprises a selection device, which comprises a selection plate 3171 located outside the second mechanism plate 3102 and in sliding connection with the second mechanism plate 3102. Specifically, the second mechanism plate 3102 is in sliding connection with a waist-shaped hole (not marked in the figure), and the selection plate 3171 is fixedly provided with a baffle guide rod 3173 and a leaf spring lever 3174 in sliding connection with the waist-shaped hole, which limits the sliding direction of the selection plate 3171. The selection plate 3171 is further provided with a first operation hole 3174 and a second operation hole 3175, which are in the same horizontal plane as the first operation port 315 and the second operation port 316, and the center distance of the first operation hole 3174 and the second operation hole 3175 is greater than the center distance of the first operation port 315 and the second operation port 316. The first operation port 315 and the second operation port 316 are located between the first operation hole 3174 and the second operation hole 3175. The selection plate 3171 is further fixedly provided with a lever 3172. Moving the lever 3172 manually drives the selection plate 3171 to move rightward so that the first operation hole 3174 is opposite to the first operation port 315, at which time the transmission screw 3146 is manually operated, or drives the selection plate 3171 to move leftward so that the second operation hole 3175 is opposite to the second operation port 316, at which time the transmission shaft 3145 is manually operated.

[0030] The linkage device further comprises a linkage device, and the control device 312 is linked with the auxiliary device through the linkage device. The linkage device transmits the motion of the control device 312 to the auxiliary device, realizes the linkage of the auxiliary device, and outputs the electrical signal of the position of the three-position mechanism.

[0031] The linkage device comprises a sliding block 3121 in sliding connection with the transmission shaft 3145 and in threaded connection with the transmission screw 3146. The transmission screw 3146 rotates to drive the sliding block 3121 to slide along the transmission shaft 3145. The sliding block 3121 is fixedly provided with a push rod 3122, which moves with the sliding block 3121. When the push rod 3122 moves, the power is transmitted to the auxiliary device.

[0032] The three-station mechanism 31 further comprises an indication plate 300 which is located outside the selection plate 3171 and is fixedly connected with the second mechanism plate 3102, the indication plate 300 is fixedly provided with an indication perforation 3001, a first indication operation hole 3002 and a second indication operation hole 3003, the first indication operation hole 3002 and the second indication operation hole 3003 are respectively opposite to the first operation port 315 and the second operation port 316 in position, the dial lever 3172 penetrates through the indication perforation 3001, and the indication plate 300 is provided with a three-station operation indication mark.

[0033] Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor should belong to the protection scope of the present application.

Claims

1. A three-station mechanism for gas insulation, characterized by: The utility model provides a control device and auxiliary device linkage device, the control device and auxiliary device linkage device through linkage device, through linkage device the motion of control device is transmitted to auxiliary device, and the electrical signal output of three position mechanism position, the rack includes first mechanism board and second mechanism board, and the manual operation component includes first operation port and second operation port, and the three position mechanism includes selection device, and the selection device includes selection board, and the selection board is located the outside of second mechanism board and is connected with second mechanism board slidingly, and second mechanism board is fixed with the waist type hole, and the selection board is fixed with the baffle guide rod and the leaf spring shift lever of sliding connection with the waist type hole, and first operation hole and second operation hole are still provided on the selection board, and first operation port and second operation port are located between first operation hole and second operation hole, and the shift lever is still fixed on the selection board, and manual movement shift lever drives the selection board right shift and makes first operation hole with first operation port position opposite, and manual operation transmission screw rod, or drive selection board left shift and make second operation hole with second operation port opposite, and manual operation transmission shaft.

2. A three position mechanism for gas insulation as claimed in claim 1, wherein: The first mechanism board and the second mechanism board are fixedly connected through the rack support column, and the first mechanism board and the second mechanism board form a first mounting cavity.

3. A three position mechanism for gas insulation as claimed in claim 2, wherein: The electric operation assembly includes a three-position motor, which is installed in the first mounting cavity and fixedly connected with the second mechanism board. The output shaft of the three-position motor rotates through the second mechanism board and is connected with the transmission mechanism outside the second mechanism board.

4. A three position mechanism for gas insulation according to claim 2, characterized in that: The transmission shaft and the transmission screw rod are rotatably connected with the first mechanism board and the second mechanism board. The input end of the transmission shaft and the output shaft rotatably penetrate the second mechanism board and the first mechanism board, respectively. The input end of the transmission screw rod rotatably penetrates the second mechanism board, and the output end of the transmission screw rod is rotatably connected with the first mechanism board. The output end of the transmission shaft is connected with the main circuit of the three-position switch, and the input end of the transmission shaft is connected with the transmission assembly.

5. A three position mechanism for gas insulation as claimed in claim 2, wherein: The transmission assembly includes a transmission gear, a transition gear, an operation gear, and a drive gear. The transmission gear, the transition gear, the operation gear, and the drive gear are sequentially and meshingly connected in pairs. The transmission gear is fixedly arranged on the output shaft of the three-position motor. The transition gear is rotatably connected with the second mechanism board. The operation gear is fixedly connected with the input end of the transmission shaft. The drive gear is fixedly connected with the transmission screw rod.

6. A three position mechanism for gas insulation according to claim 1, characterized in that: The first operation port is fixedly arranged on the input end of the transmission screw rod or is integrally formed with the transmission screw rod. The second operation port is fixedly arranged on the input end of the transmission shaft or is integrally formed with the transmission shaft. The opening and closing of the three-position switch and the grounding operation are controlled by manually driving the transmission shaft or the transmission screw rod to rotate.

7. A three position mechanism for gas insulation according to claim 1 characterized in that: The linkage device includes a sliding block, which is slidably connected with the transmission shaft and threadedly connected with the transmission screw rod.

8. A three position mechanism for gas insulation according to claim 7, characterized in that: The slider is fixed with a push rod, the push rod is linked with an auxiliary device, and the auxiliary device outputs an electrical signal of the three-position mechanism position.

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