Quick isolating switch

Abstract

The invention discloses a quick isolating switch, which comprises a mounting box body, an insulating column mounted at the front end of the mounting box body, connecting plates mounted on the insulating column, a fixed contact I mounted on the upper connecting plate, a moving contact mounted on the lower connecting plate, a connecting rod hinged to one end of the moving contact, and a lever hinged to the other end of the connecting rod, one end of the lever is installed on the main shaft, the main shaft penetrates through the installation box body, the cam is installed at one end of the main shaft, the main shaft penetrates through the shaft sleeve and is installed on the installation box body, the tail end of the main shaft is connected with the pushing and swinging piece, a side plate is arranged on one side of the pushing and swinging piece, the center of the side plate is connected with the first shaft, and the first shaft is connected with the center of the other side plate. An ejector rod and a connecting rod are installed between the two side plates, the ejector rod penetrates through the side plates, the pushing and swinging piece is provided with a first arc-shaped groove, one end of the ejector rod is located in the first arc-shaped groove, the other end of the ejector rod is connected with the driving block, a spring is installed at one end of the connecting rod, and the other end of the spring is installed on the spring installation rod.

Description

Technical Field

[0001] The invention relates to the technical fields of electric power, rail transportation and the like, and in particular to a fast isolating switch. Background Art

[0002] An isolating switch is an electrical device mainly used to "isolate power supply". Its function is to provide a visible disconnection point in the circuit to ensure that when performing maintenance, overhaul or other operations on electrical equipment, the part that needs to be operated can be completely isolated from the live power supply to ensure the safety of personnel and equipment. The current isolating switches include electric isolating switches and manual isolating switches. When driving the moving contact to move, the motor can only rotate according to the established power to drive the moving contact to move. The same is true for manual operation. In special circumstances, when fast operation is required, such as quick disconnection, it cannot be achieved. Moreover, when pushing at a uniform speed, arcs are easily generated, which poses a safety risk. Summary of the invention

[0003] The purpose of the present invention is to provide a fast isolating switch which can quickly close and disconnect by changing the driving structure.

[0004] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0005] The invention discloses a fast isolating switch, comprising an installation box body, wherein insulating columns are respectively installed on the upper and lower sides of the front end of the installation box body, and connecting plates are respectively installed on the insulating columns, two static contacts are installed on the upper connecting plate, and a moving contact is installed on the lower connecting plate, the moving contact is hinged to one end of a connecting rod, and the other end of the connecting rod is hinged to a lever, one end of the lever is installed on a main shaft, the main shaft passes through the installation box body, a cam is installed at one end of the main shaft, the other end of the main shaft passes through a shaft sleeve, the shaft sleeve is installed on the installation box body, the end of the other end of the main shaft is connected to a push-swing member, a side plate is provided on the other side of the push-swing member, the center of the side plate is connected to the shaft one, and the other end of the shaft one is connected to the center of the other side plate, a push rod and a connecting rod are installed between the two side plates, the push rod passes through the side plate, the push-swing member is provided with an arc groove one, one end of the push rod is located in the arc groove one, and the other end of the push rod is connected to the driving block, a spring is installed at one end of the connecting rod, and the other end of the spring is installed on the spring mounting rod.

[0006] Furthermore, the installation box body includes a bottom plate one and a bottom plate two, and angle plates are installed on the bottom plates one and two, and left and right plates are installed on both sides of the angle plates. Bushings are installed on the left and right plates, and the two ends of the main shaft pass through the bushings. A spring installation box is installed on the right side of the right plate.

[0007] Furthermore, the push pendulum includes pendulum one and pendulum two, both of which are circular ring structures, the diameter of pendulum two is larger than the diameter of pendulum one, a main shaft mounting groove corresponding to the end of the main shaft is provided in the middle of pendulum one, bearing one is installed in pendulum two, bearing one is installed in the driving block, pendulum one is installed in bearing two, bearing two is installed in the spring mounting box, arc groove one is provided in pendulum two, two ends of shaft one are respectively installed at the center of bearing one, pressure plates are provided on both sides of shaft one, the side plate on the left is located between pendulum two and the pressure plate, and the side plate on the right is located between the pressure plate on the right and the driving block.

[0008] Furthermore, the driving block is a rotating body, and the driving block includes a driving ring 1 and a driving ring 2. Bearing 1 is installed in driving ring 1, the diameter of driving ring 2 is smaller than the diameter of driving ring 1, the outer side of driving ring 2 is installed in bearing 2, bearing 2 is installed on the side mounting plate, the side mounting plate is installed on the right side of the spring mounting box, and the spring mounting rod is installed on the side mounting plate and the spring mounting box.

[0009] Furthermore, a driving connection groove is provided at the center of the driving ring 2, and the driving connection groove is connected to the driving rod.

[0010] Furthermore, the driving ring 1 is provided with an arc groove 2, and the other end of the push rod is in the arc groove 2.

[0011] Furthermore, the cross section of the middle of the main shaft is a regular hexagon, a limit block 1 is installed on the side of the main shaft close to the right side plate, and a limit block 2 corresponding to the limit block 1 is provided on the right side plate.

[0012] Furthermore, two levers are provided, the tops of the levers are connected by a pin, the bottom of the connecting rod is connected to the pin, and the bottom of the lever is mounted on the main shaft.

[0013] Furthermore, a torsion spring is installed on the main shaft, the torsion spring is pressed on the upper ends of the two levers, and the two ends of the torsion spring are installed on the base plate.

[0014] The beneficial effects of the present invention are:

[0015] The present invention first drives the driving block to rotate, the driving block drives the two side plates to rotate, the side plates drive the connecting rod to rotate, the connecting rod drives the compression spring, when the spring is compressed to the extreme position, the connecting rod continues to rotate, at this time the spring is in the extension process, before and after the spring is compressed to the limit position, the push rod rotates in an arc groove of the push pendulum piece, the push pendulum piece does not rotate, when the spring is rapidly extended, the push rod pushes the push pendulum piece to rotate, the push pendulum piece rotates rapidly, and then drives the main shaft to rotate, the main shaft drives the lever to rotate, the lever drives the connecting rod to move, the connecting rod drives the moving contact to move rapidly to connect or separate with the static contact, since the moving contact and the static contact are quickly connected, the possibility of arc generation is reduced, and when the moving contact is moving, the driving device has completed the driving, and the safety is high. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0017] Figure 1 It is a schematic diagram of the present invention.

[0018] Figure 2 This is a schematic diagram from another viewing angle of the present invention.

[0019] Figure 3 It is a partial schematic diagram of the present invention.

[0020] Figure 4 It is a partial schematic diagram of the present invention.

[0021] Figure 5 It is a partial schematic diagram of the present invention.

[0022] Figure 6 It is a partial cross-sectional view of the present invention.

[0023] Figure 7 It is a schematic diagram of the push-piece of the present invention.

[0024] Figure 8 This is a schematic diagram of the push-and-turn piece of the present invention from another viewing angle.

[0025] Fig. 9 Schematic diagram of the drive block of the present invention.

[0026] Fig.10 This is a schematic diagram of the driving block of the present invention from another perspective.

[0027] Fig.11 It is a schematic diagram of the first axis of the present invention.

[0028] Fig.12 It is a schematic diagram of the main axis of the present invention.

[0029] Fig.13 It is a partial schematic diagram of the present invention.

[0030] Fig.14 It is a partial schematic diagram of the present invention. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. The components of the embodiments of the present invention generally described and shown in the drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely represents the selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making creative work belong to the scope of protection of the present invention.

[0032] As shown in the figure, the present invention discloses a fast disconnect switch, including a mounting box body 1, insulating columns 2 are respectively mounted on the upper and lower sides of the front end of the mounting box body 1, connecting plates 3 are respectively mounted on the insulating columns 2, two static contacts 4 are mounted on the upper connecting plate 3, and a moving contact 5 is mounted on the lower connecting plate 3, the moving contact 5 is hinged to one end of a connecting rod 6, the other end of the connecting rod 6 is hinged to a lever 7, one end of the lever 7 is mounted on a main shaft 8, the main shaft 8 passes through the mounting box body 1, a cam 9 is mounted on one end of the main shaft 8, the other end of the main shaft 8 passes through a shaft sleeve 10, and the shaft sleeve 10 is mounted on the mounting box body 1 The end of the other end of the main shaft 8 is connected to the push-swing member 11, and a side plate 12 is provided on the other side of the push-swing member 11. The center of the side plate 12 is connected to the shaft 13, and the other end of the shaft 13 is connected to the center of the other side plate 12. A push rod 14 and a connecting rod 15 are installed between the two side plates 12. The push rod 14 passes through the side plate 12. The push-swing member 11 is provided with an arc groove 101. One end of the push rod 14 is located in the arc groove 1001, and the other end of the push rod 14 is connected to the driving block 16. A spring 17 is installed at one end of the connecting rod 15, and the other end of the spring 17 is installed on the spring mounting rod 18.

[0033] When it is necessary to close, the present invention first drives the driving block 16 to rotate, the driving block 16 drives the two side plates 12 to rotate, the side plates 12 drive the connecting rod 15 to rotate, the connecting rod 15 drives the compression spring 17, when the spring 17 is compressed to the extreme position, the connecting rod 15 continues to rotate, at this time the spring 17 is in the extension process, before and before the spring 17 is compressed to the limit position, the push rod 14 rotates in the arc groove 1001 of the push pendulum member 11, and the push pendulum member 11 does not rotate, when the spring 17 is rapidly extended, the push rod 14 pushes the push pendulum member 11 to rotate, the push pendulum member 11 rotates rapidly, and then drives the main shaft 8 to rotate, the main shaft 8 drives the lever 7 to rotate, the lever 7 drives the connecting rod 6 to move, the connecting rod 6 drives the moving contact to move rapidly and connect with the static contact, the subsequent power comes from the spring compressed in the early stage, the rotation speed of the moving contact is very fast, which greatly reduces the possibility of arc generation and improves safety. Similarly, when the moving contact or the stationary contact needs to be separated, the spring is compressed in the early stage, and then the elastic force of the spring quickly drives the moving contact to separate from the stationary contact. Compared with the traditional slow separation of the moving contact and the stationary contact, the safety is greatly improved.

[0034] In one embodiment of the present invention, the installation box body 1 includes a bottom plate 101 and a bottom plate 2 102, and angle plates 103 are installed on both the bottom plate 101 and the bottom plate 2 102. A left side plate 104 and a right side plate 105 are installed on both sides of the angle plate 103. A shaft sleeve 19 is installed on both the left side plate 104 and the right side plate 105. The two ends of the main shaft pass through the shaft sleeve 19, and a spring installation box 20 is installed on the right side of the right side plate 105. The spring installation box 20 plays a role in protecting the spring. The bottom plate 101 and the bottom plate 2 102 of the installation box body 1 are used to install the present invention.

[0035] In one embodiment of the present invention, the push-open member 11 includes a pendulum member 111 and a pendulum member 112, both of which are circular ring structures. The diameter of the pendulum member 112 is larger than that of the pendulum member 111, and a spindle mounting groove 1002 corresponding to the end of the spindle 8 is provided in the middle of the pendulum member 111. A bearing 21 is installed in the pendulum member 112, and a bearing 21 is installed in the driving block 16. The pendulum member 111 is installed in the bearing 22, and the bearing 22 is installed in the spring mounting box 20. The arc groove 1001 is provided at the pendulum member 112, and the two ends of the shaft 13 are respectively installed at the center of the bearing 21. A pressure plate 131 is provided on both sides of the shaft 13. The side plate 12 on the left is located between the pendulum member 112 and the pressure plate 131, and the side plate 12 on the right is located between the pressure plate 131 on the right and the driving block 16. Since one end of the push rod 14 rotates in the arc groove 1001 first, the pusher 11 does not rotate at this time. When the push rod 14 moves to the end of the arc groove 1001, if the push rod 14 moves again, it will drive the pusher 11 to rotate. In the design, when the push rod 14 contacts the end of the arc groove 1001 and moves again, it will drive the pusher 11 to rotate. At this time, the spring is in the limit state of compression. After the spring rotates to the limit position, it will quickly drive the pusher 11 to rotate through the push rod 14, and the rotation speed is very fast.

[0036] In one embodiment of the present invention, the driving block 16 is a rotating body, and the driving block 16 includes a driving ring 1 161 and a driving ring 2 162. The bearing 1 21 is installed in the driving ring 1 161. The diameter of the driving ring 2 162 is smaller than the diameter of the driving ring 1 161. The outer side of the driving ring 2 162 is installed in the bearing 2 22. The bearing 22 is installed on the side mounting plate 23. The side mounting plate 23 is installed on the right side of the spring mounting box 20. The spring mounting rod 18 is installed at the side mounting plate 23 and the spring mounting box 20. The driving ring 2 162 drives the driving ring 1 161 to rotate, and the driving ring 1 161 rotates around the inner ring of the bearing 1 21. The bearing 22 plays the role of installing the driving block 16.

[0037] In one embodiment of the present invention, a driving connection groove 1621 is provided at the center of the second driving ring 162, and the driving connection groove 1621 is connected to the driving rod 24. The driving rod 24 drives the second driving ring 162 to rotate.

[0038] In one embodiment of the present invention, the driving ring 161 is provided with an arc groove 2 1611, and the other end of the push rod 14 is in the arc groove 2 1611. The structural design of the driving block 16 is that during manual operation, when the spring is stretched, the push rod 14 will first move at the arc groove 2 1611, which plays a protective role to prevent the spring from driving too fast, and the reaction force will be with the motor or the operator. When the spring completes the release of the elastic force, the push rod 14 will complete the entire arc length of the arc groove 2 1611.

[0039] In one embodiment of the present invention, the cross section of the middle of the main shaft 8 is a regular hexagon, a stopper 25 is installed on the side of the main shaft 8 close to the right side plate, and a stopper 26 corresponding to the stopper 25 is provided on the right side plate 105. The design of the stopper 25 and the stopper 26 plays a limiting role.

[0040] In one embodiment of the present invention, two levers 7 are provided, the tops of the levers 7 are connected by a pin 27 , the bottom of the connecting rod 6 is connected to the pin 27 , and the bottom of the lever 7 is mounted on the main shaft 8 .

[0041] In one embodiment of the present invention, a torsion spring 28 is installed on the main shaft 8, the torsion spring 8 is pressed on the upper ends of the two levers 7, and the two ends of the torsion spring 28 are installed on the bottom plate 101. The torsion spring 8 facilitates the separation of the moving contact and the static contact.

[0042] A connecting rod 1 29 is installed on the connecting rod 15, and two connecting rods 30 are installed on the spring mounting rod 18. A groove 291 is provided on the connecting rod 1 29, and a groove 2 301 is provided on the connecting rod 2 30. The end of the connecting rod 1 29 is located between the two connecting rods 2 30. A connecting pin 1 31 is provided at the end of the connecting rod 1 29, and the connecting pin 1 31 passes through the two grooves 2. A connecting pin 2 32 is installed at the end of the connecting rod 2, and the connecting pin 2 passes through the two grooves 1. A spring mounting circular plate 33 is installed on the side of the two connecting rods 2 facing the spring mounting rod. A spring mounting circular plate 33 is provided on the side of the connecting rod 1 facing the connecting rod. The spring is installed between the two spring mounting circular plates, and the connecting rods 1 and 2 pass through the spring. The connecting rods 1 29 and 2 30 play the role of supporting the spring.

[0043] The spring comprises two springs with different diameters, wherein the spring with a smaller diameter is located inside the spring with a larger diameter. The design of the two springs makes the spring more stable during operation.

[0044] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A fast isolating switch, characterized in that: It includes an installation box body, insulating columns are respectively installed on the upper and lower sides of the front end of the installation box body, and connecting plates are respectively installed on the insulating columns. Two static contacts are installed on the upper connecting plate, and a moving contact is installed on the lower connecting plate. The moving contact is hinged to one end of a connecting rod, and the other end of the connecting rod is hinged to a lever. One end of the lever is installed on a main shaft, and the main shaft passes through the installation box body. A cam is installed at one end of the main shaft, and the other end of the main shaft passes through a shaft sleeve, which is installed on the installation box body. The end of the other end of the main shaft is connected to a push-swing member, and a side plate is provided on the other side of the push-swing member, and the center of the side plate is connected to shaft one, and the other end of shaft one is connected to the center of another side plate. A push rod and a connecting rod are installed between the two side plates, and the push rod passes through the side plate. The push-swing member is provided with an arc groove one, one end of the push rod is located in the arc groove one, and the other end of the push rod is connected to a driving block. A spring is installed at one end of the connecting rod, and the other end of the spring is installed on a spring mounting rod.

2. A fast isolating switch according to claim 1, characterized in that: The installation box body includes bottom plate one and bottom plate two, bottom plate one and bottom plate two are both installed with angle plates, left plate and right plate are installed on both sides of the angle plates, shaft sleeves are installed on the left plate and right plate, two ends of the main shaft pass through the shaft sleeves, and a spring installation box is installed on the right side of the right plate.

3. A fast isolating switch according to claim 2, characterized in that: The push-pull pendulum includes pendulum one and pendulum two, both of which are circular ring structures. The diameter of pendulum two is larger than that of pendulum one. A spindle mounting groove corresponding to the end of the spindle is provided in the middle of pendulum one, bearing one is installed in pendulum two, bearing one is installed in the driving block, pendulum one is installed in bearing two, bearing two is installed in the spring mounting box, arc groove one is provided in pendulum two, two ends of shaft one are respectively installed at the center of bearing one, pressure plates are provided on both sides of shaft one, the side plate on the left is located between pendulum two and the pressure plate, and the side plate on the right is located between the pressure plate on the right and the driving block.

4. A fast isolating switch according to claim 3, characterized in that: The driving block is a rotating body, and the driving block includes a driving ring 1 and a driving ring 2. Bearing 1 is installed in driving ring 1, the diameter of driving ring 2 is smaller than the diameter of driving ring 1, the outer side of driving ring 2 is installed in bearing 2, bearing 2 is installed on the side mounting plate, the side mounting plate is installed on the right side of the spring mounting box, and the spring mounting rod is installed on the side mounting plate and the spring mounting box.

5. A fast isolating switch according to claim 4, characterized in that: A driving connection groove is arranged at the center of the driving ring 2, and the driving connection groove is connected to the driving rod.

6. A fast isolating switch according to claim 4, characterized in that: The driving ring 1 is provided with an arc groove 2, and the other end of the push rod is in the arc groove 2.

7. A fast isolating switch according to claim 2, characterized in that: The cross section of the middle of the main shaft is a regular hexagon. A limit block 1 is installed on the side of the main shaft close to the right side plate, and a limit block 2 corresponding to the limit block 1 is arranged on the right side plate.

8. A fast isolating switch according to claim 7, characterized in that: Two levers are provided, the tops of the levers are connected by a pin shaft, the bottom of the connecting rod is connected to the pin shaft, and the bottom of the lever is installed on the main shaft.

9. A fast isolating switch according to claim 8, characterized in that: A torsion spring is installed on the main shaft, the torsion spring is pressed on the upper ends of the two levers, and the two ends of the torsion spring are installed on a base plate.

10. A fast isolating switch according to claim 1, characterized in that: A connecting rod 1 is installed on the connecting rod, and two connecting rods 2 are installed on the spring mounting rod. A groove 1 is provided on the connecting rod 1, and a groove 2 is provided on the connecting rod 2. The end of the connecting rod 1 is located between the two connecting rods 2. A connecting pin 1 is provided at the end of the connecting rod 1, and the connecting pin 1 passes through the two grooves 2. A connecting pin 2 is installed at the end of the connecting rod 2, and the connecting pin 2 passes through the two grooves 1. A spring mounting circular plate is installed on the side of the two connecting rods 2 facing the spring mounting rod, a spring mounting circular plate is provided on the side of the connecting rod 1 facing the connecting rod, the spring is installed between the two spring mounting circular plates, and the connecting rods 1 and 2 pass through the spring.

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