A device for preventing accidental touch of separation gate of high and low voltage distribution cabinet

Abstract

The present invention relates to the technical field of preventing accidental touch of separation gates, and specifically to an anti-accidental touch device for separation gates of high and low voltage distribution cabinets, comprising a panel for installation, a device shell being arranged on the back side of the panel, a sealed compartment being fixedly arranged inside the device shell, a moving line end and a fixed line end being arranged inside the sealed compartment, the fixed line end being fixedly arranged on the side of the sealed compartment, the moving line end being connected to a first control unit and a second control unit, the first control unit comprising an operating rod protruding from the panel, the output end of the operating rod being connected to the front of the moving line end, the second control unit comprising a driving member arranged at the rear of the moving line end, the driving member being electrically connected to a control button arranged on the panel, thereby greatly preventing the possibility of accidental operation, reducing the loss caused by accidental touch, and ensuring overall safety in use.

Description

Technical Field

[0001] The invention relates to the technical field of preventing accidental touch of a separation gate, and in particular to an accidental touch prevention device for a separation gate of a high- and low-voltage distribution cabinet. Background Art

[0002] As the name implies, high and low voltage distribution cabinets are distribution equipment used for power distribution, control, metering and cable connection in power supply systems. Generally, power supply bureaus and substations use high voltage switch cabinets, which are then stepped down by transformers and led to low voltage distribution cabinets. Low voltage distribution cabinets are then connected to distribution boards, control boxes and switch boxes for various power users. The equipment in the cabinets is a distribution device that meets the design functional requirements by assembling some switches, circuit breakers, fuses, buttons, indicator lights, meters, wires and other protective devices into one. In order to be able to quickly disconnect power in an emergency, the existing high and low voltage distribution cabinets are generally equipped with manual disconnect gates on the outside.

[0003] Nowadays, manual rotary dial switches are often installed on high-voltage distribution cabinets to control the connection and disconnection of the power connector of the distribution cabinet. However, there are still some shortcomings in the rotary dial switches used in high-voltage distribution cabinets. When the electrical switch is turned on or off, it is inevitable that the body will accidentally touch it, causing the switch to be opened or closed by external force. Especially when multiple power lines are used in adjacent distribution cabinets, since the appearance of the separation gates is the same, when closing or opening the branch circuit, they can only be distinguished by the labels affixed to the separation gates, and there is no device to prevent accidental touch. Once you are not careful, especially in an emergency, you often cannot quickly distinguish the corresponding separation gate, and it is very easy to cause misoperation. Therefore, the present technical solution is proposed. Summary of the invention

[0004] The purpose of the present invention is to overcome the disadvantages of the prior art that the distribution cabinet is prone to misoperation when emergency manual opening and closing is required, and to provide an anti-misoperation device for the separation gate of a high and low voltage distribution cabinet.

[0005] In order to achieve the above-mentioned purpose, the embodiment of the present invention specifically adopts the following technical scheme: an anti-accidental touch device for the separation switch of a high and low voltage distribution cabinet, comprising a panel for installation, a device shell is arranged on the back side of the panel, a sealed compartment is fixedly arranged inside the device shell, a moving line end and a fixed line end are arranged inside the sealed compartment, the fixed line end is fixedly arranged on the side of the sealed compartment, the moving line end is connected to a first control part and a second control part, the first control part comprises an operating rod protruding from the panel, the output end of the operating rod is connected to the front part of the moving line end, the second control part comprises a driving member arranged at the rear part of the moving line end, and the driving member is electrically connected to a control button arranged on the panel.

[0006] Furthermore, the front end of the sealing chamber is provided with an end cover, one end of the operating rod is hinged on the end cover, a through hole for accommodating the operating rod is vertically provided on the panel, and the other end of the operating rod is provided with a horizontal handle.

[0007] Furthermore, the output end of the operating rod includes a connecting rod hingedly arranged at the lower part, a pull rod is horizontally arranged at the middle position of the end cover, the connecting rod is hinged to the pull rod, the pull rod extends into the sealed chamber, one end of the pull rod is fixedly connected to a connecting plate arranged inside the sealed chamber, and the connecting plate is connected to the moving line end.

[0008] Furthermore, the moving line end includes a fixed block, the upper and lower parts of the fixed block are provided with connecting columns connected to the fixed line end, and a spring is provided between the connecting plate and the fixed block.

[0009] Furthermore, a clamping piece connected to the wiring end is provided at the top of the connecting column, and a V-shaped groove connected to the clamping piece is provided at the end of the wiring end.

[0010] Furthermore, the driving member is arranged on the back side of the fixed block, and the driving member includes a sliding rod fixedly connected to the fixed block. A cylinder body is arranged on the inner wall of the sealed chamber, one end of the sliding rod is slidably arranged inside the cylinder body, and an air inlet pipe and an air outlet pipe are arranged on the outer wall of the cylinder body, and the air inlet pipe is connected to a compressed gas tank.

[0011] Furthermore, the compressed gas tank is arranged on the outer wall of the equipment shell, and an air pump for supplying air is arranged on the side of the compressed gas tank.

[0012] Furthermore, the air inlet pipe and the air outlet pipe are both provided with solenoid valves, and the solenoid valves are electrically connected to the control button.

[0013] Furthermore, a sliding block is provided at one end of the sliding rod, and a sealing device is provided between the side wall of the sliding block and the inner wall of the cylinder body.

[0014] Furthermore, an interface connected to a sulfur hexafluoride storage tank is provided on the side wall of the sealed chamber.

[0015] The beneficial effects of the embodiments of the present invention are as follows: a button is arranged in the middle position of the handle, the bottom of the bottom rod of the button extends into the interior of the operating rod, a groove is arranged in the lower part of the bottom rod, one side of the groove is an inclined surface, an elastic column is arranged on the side wall of the operating rod, one end of the elastic column protrudes from the operating rod, and a second spring is wound around the other end, and the action force of the second spring extends the elastic column toward the groove direction of the bottom rod, and the position of the operating rod is limited by the elastic column and the bottom rod, which prevents the operator from touching it accidentally, ensures the stability of the connection between the moving line end and the fixed line end inside the sealed chamber, and enhances the safety of use.

[0016] During the closing and opening process, the closing effect can be achieved through the dual control of the spring and the cylinder, which greatly prevents the possibility of misoperation, reduces the losses caused by misconduct, and ensures overall safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0018] Figure 2 It is a schematic diagram of the overall structure of the present invention from another angle;

[0019] Figure 3 It is a schematic diagram of the internal structure of the device shell of the present invention;

[0020] Figure 4 It is a schematic diagram of the overall internal structure of the present invention;

[0021] Figure 5 It is a cross-sectional structural schematic diagram of the present invention;

[0022] Figure 6 It is a schematic diagram of the internal structure of the operating rod of the present invention;

[0023] In the figure: 1. panel; 101. control button; 102. operating lever; 103. handle; 104. connecting rod; 105. pull rod; 2. equipment shell; 201. compressed gas tank; 202. air pump; 203. air inlet pipe; 204. air outlet pipe; 3. sealing chamber; 4. reset rod; 5. bottom rod; 501. first spring; 502. second spring; 503. elastic column; 504. groove; 6. fixed line end; 601. moving line end; 602. fixed block; 603. cylinder body; 604. sliding rod; 7. connecting plate; 701. guide rail; 8. position sensor. DETAILED DESCRIPTION

[0024] Preferred embodiments of the present invention are described below with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are only used to explain the technical principles of the present invention and are not intended to limit the protection scope of the present invention.

[0025] See also Figures 1 to 6In the power system, high and low voltage distribution cabinets are key equipment for power distribution, control, metering and cable connection. Their safety and reliability are crucial to the stable operation of the entire power supply network. Especially in high-voltage distribution cabinets, due to the particularity of the operating environment, how to prevent accidental touch? A device for preventing accidental touch of the separation gate of high and low voltage distribution cabinets is provided. The device is mainly composed of a panel 1 installed on the distribution cabinet, an equipment shell 2, a sealing chamber 3, a moving line terminal 601, a fixed line terminal 6, a first control unit and a second control unit. The panel 1 fixes the rear equipment as a whole and can be installed and used as a separate module. It can be used in conjunction with an existing air switch or as a backup route for a large air switch. Especially when the air switch is damaged and needs to be replaced or repaired, the backup circuit at the rear of the panel 1 can be enabled. Compared with the air switch, it has stronger operability and does not affect production. It can also be used alone. Especially in some places with large power consumption, the circuit will generate a large arc during the process of opening and closing the gate. The technical solution can effectively prevent the arc from damaging the circuit, and the operation is simple and the structure is reliable.

[0026] A device shell 2 is provided on the back side of the panel 1, and the device shell 2 wraps the entire device inside. Terminals flow out from the upper and lower parts of the device shell 2, and the terminal posts connect the entry direction and output direction of the circuit. A sealed chamber 3 is fixed inside. The device shell 2 and the sealed chamber 3 can prevent dust and moisture from invading, ensure the normal operation of internal electrical components, extend the service life, and at the same time reduce the arc overflow generated when the circuit is opened and closed, ensuring safe use.

[0027] Inside the sealed chamber 3, we set up a moving line terminal 601 and a fixed line terminal 6. The fixed line terminal 6 is fixed to the side of the sealed chamber 3. The fixed line terminal 6 includes a terminal. The fixed line terminal 6 is fixed to ensure the stability of the connection. The moving line terminal 601 is connected to the first control unit and the second control unit. The function of the moving line terminal 601 is to achieve the purpose of line separation and combination by connecting or separating the terminals at the upper and lower ends, realizing the connection and disconnection of the entire line, and ensuring safety in use.

[0028] The first control unit includes an operating rod 102 protruding from the panel 1. The output end of the operating rod 102 is connected to the front of the moving line terminal 601. In this way, when the circuit needs to be connected or disconnected, it can be achieved by simply using the operating rod 102. One end of the operating rod 102 is hinged on the end cover of the sealing chamber 3. A through hole is vertically provided on the panel 1 to accommodate the up and down movement of the operating rod 102.

[0029] A horizontal handle 103 is provided at the other end of the operating rod 102 for the convenience of the operator to hold. A positioning hole is provided on the side of the through hole. A button is provided in the middle position of the handle 103. The bottom of the bottom rod 5 of the button extends into the inside of the operating rod 102. A first spring 501 is wound around the upper part of the bottom rod 5. A first baffle is provided on the inner wall of the operating rod 102. The first baffle cooperates with the first spring 501 to make the bottom rod 5 and the button have an upward force. A groove 504 is provided at the lower part of the bottom rod 5. One side of the groove 504 is an inclined surface. An elastic column 503 is provided on the side wall of the operating rod 102. One end of the elastic column 503 protrudes from the operating rod 102, and the other end is wound around a second The spring 502 and the second spring 502 extend the elastic column 503 toward the groove 504 of the bottom rod 5. In the free state, the bottom of the elastic column 503 abuts against the inclined surface of the groove 504, so that the end of the elastic column 503 protrudes from the side wall of the operating rod 102. When closing the switch upward or opening the switch downward, it is necessary to manually push the button to drive the bottom rod 5 to move downward, the inclined surface of the groove 504 slides down, and the elastic column 503 retracts. At this time, the operating rod 102 can be moved freely. The elastic column 503 and the bottom rod 5 are used to limit the position of the operating rod 102. The limitation prevents the operator from touching it by mistake, ensures the stable connection between the moving line end 601 and the fixed line end 6 inside the sealing chamber 3, and enhances the safety of use.

[0030] The output end of the operating rod 102 also includes a connecting rod 104 hinged at the bottom. The connecting rod 104 is installed inside the equipment shell 2. The connecting rod 104 is hinged to the pull rod 105 set in the middle of the end cover. When the operator pushes the handle 103, the connecting rod 104 will drive the pull rod 105 to move inside the sealed chamber 3. A sealing ring is provided between the pull rod 105 and the end cover to ensure the sealing of the inside of the sealed chamber 3. An alumina ceramic coating is applied to the inside of the sealed chamber 3 to ensure the use effect.

[0031] The design of the moving line terminal 601 also fully considers safety and reliability. It is composed of a fixed block 602. The fixed block 602 is an insulating block made of ceramic or composite materials. It has an insulating effect while ensuring the structural strength. The upper and lower parts of the fixed block 602 are provided with connecting columns connected to the fixed line terminal 6. The connecting column is in a connected state inside the fixed block 602. The top of the connecting column is also provided with a card piece connected to the fixed line terminal 6, and the end of the fixed line terminal 6 is provided with a V-shaped groove that cooperates with the card piece to ensure the stability of the connection. When the upper and lower parts are connected to the fixed line end 6, the circuit is connected. A spring is provided between the connecting plate 7 and the fixed block 602. The middle position of the connecting plate 7 is connected to the pull rod 105. Guide rails 701 are provided on the inner walls of the sealing chamber 3 at both ends of the connecting plate 7. The two ends of the connecting plate 7 are slidably connected to the guide rails 701. Under the action of the pull rod 105, the connecting plate 7 slides back and forth along the guide rails 701 to ensure the stability and accuracy of the action execution. When the operating rod 102 is pulled upward, the pull rod 105 drives the connecting plate 7 and the spring to move to the end cover to achieve the effect of closing the switch.

[0032] The second control unit includes a driving member arranged at the rear of the moving line end 601, and the driving member is connected to the cylinder body 603 arranged on the inner wall of the sealing chamber 3 through a sliding rod 604. A sealing device is arranged between the side wall of the sliding block and the inner wall of the cylinder body 603. The sealing device includes a sealing groove and a sealing ring arranged on the side wall of the sliding block. A closed air cavity is formed between the sliding block and the cylinder body 603 on the left side. An air inlet pipe 203 and an air outlet pipe 204 are arranged on the outer wall of the cylinder body 603, and are connected to a compressed gas tank 201. An air pump 202 for air supply is arranged on the side of the compressed gas tank 201. The air pump 202 adopts a small piston pump, which can replenish air inside the compressed gas tank 201. Solenoid valves are arranged on the air inlet pipe 203 and the air outlet pipe 204, which are electrically connected to the control button 101 to realize the control of the moving line end 601. The control system is that when in use, the cylinder 603 is filled with compressed air, and the operating rod 102 is in the open position at the bottom, and a pulling force to the left is formed on the moving line end 601 inside the cylinder 603, so that the moving line end 601 is separated from the fixed line end 6. When it is necessary to close the switch, the operating rod 102 needs to be moved upward first and maintained. Under the action of the compressed air inside the cylinder 603, the spring is in a stretched state. At this time, the moving line end 601 and the fixed line end 6 are still in a separated state. At this time, it is necessary to start the closing button of the control button 101, so that the solenoid valve on the air outlet pipe 204 opens, and the gas inside the cylinder 603 is released. Under the action of the spring tension, the moving line end 601 moves quickly to the right, so as to achieve the purpose of fast closing. Double control is adopted in the process of closing the switch, which greatly prevents the possibility of misoperation and ensures the overall safety of use.

[0033] A position sensor 8 is installed at the lower part of the through hole to sense the position of the operating rod 102. When the gate opening operation is required, the operating rod 102 will push the connecting plate 7 and the spring to contract and move to the left after contacting the limit. At this time, the spring changes from a stretched state to a compressed state. When the operating rod 102 triggers the position sensor 8, the solenoid valve on the air intake pipe 203 opens, causing the sliding block to move quickly to the left, thereby driving the moving line end 601 to separate from the fixed line end 6, thereby achieving the gate opening effect. During the gate opening process, the gas pressure cooperates with the elastic force of the spring to quickly achieve the gate opening effect, thereby ensuring the timeliness of the operation. If the operating rod 102 is accidentally touched, the position sensor 8 will not be triggered when the operating rod 102 is not subjected to a certain downward pressure. Under the buffering of the spring, the gate opening effect will not be achieved, thereby ensuring safe use, greatly reducing the probability of accidental touch, ensuring safe use, and improving the control effect.

[0034] In the same sealed chamber 3, the number of dynamic line terminals 601 can be selected according to the needs of use. The commonly used industrial electricity in China is three live wires. Each fixed block 602 can be connected to a live wire and controlled by the same operating lever 102. It can also be used for the control of a 220-volt live wire. According to the use of the distribution cabinet, the control button 101 and the position sensor 8 are reasonably allocated. The control button 101 and the position sensor 8 are normally open through the 24-volt power supply connected to the incoming line end to ensure power supply. If multiple sets of devices are used, batteries can be installed inside the distribution room to ensure emergency power supply and safety.

[0035] A reset rod 4 is installed on the plate connecting the plate 7 between the fixed blocks 602. When the cylinder 603 or the spring is damaged and the gate cannot be opened, the reset rod 4 is pulled to the left to forcibly separate the moving line end 601 from the fixed line end 6. One end of the reset rod 4 is spirally installed on the outside of the equipment shell 2 to ensure the sealing of the sealing chamber 3. At the same time, since the sealing chamber 3 and the equipment shell 2 are fixed by a lining plate, the two reset rods 4 also have a stabilizing guiding function for the fixed line end 6. A hole is also opened at the outer end, and a screwdriver can be used to apply force during emergency opening to promote rapid opening, ensure safety in use, and improve operability.

[0036] In addition, in order to further improve the safety of the device, we have also set an interface connecting to the sulfur hexafluoride storage tank on the side wall of the sealed chamber 3. Sulfur hexafluoride is a commonly used insulating gas. Sulfur hexafluoride is often filled into the sealed chamber 3 to suppress the arc generated during the opening or closing process, which can effectively prevent the generation of arcs, thereby protecting the safety of operators and equipment.

[0037] In summary, this anti-accidental touch device for the separation switch of the high and low voltage distribution cabinet effectively improves the safety and reliability of operation through innovative mechanical structure and electrical control design, greatly prevents the impact of accidental touch operation, and provides a strong guarantee for the stable operation of the power system.

[0038] It should be noted that in the description of the present invention, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings, which are only for the convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0039] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0040] The term "comprise" or any other similar term is intended to cover a non-exclusive inclusion, such that a process, article, or apparatus / device that includes a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, article, or apparatus / device.

[0041] So far, the technical solutions of the present invention have been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

Claims

1. A device for preventing accidental touch of a high- and low-voltage distribution cabinet separation switch, comprising a panel (1) for installation, characterized in that: A device shell (2) is arranged on the back side of the panel (1), a sealed chamber (3) is fixedly arranged inside the device shell (2), a moving line end (601) and a fixed line end (6) are arranged inside the sealed chamber (3), the fixed line end (6) is fixedly arranged on the side of the sealed chamber (3), the moving line end (601) is connected to a first control unit and a second control unit, the first control unit comprises an operating rod (102) protruding from the panel (1), the output end of the operating rod (102) is connected to the front part of the moving line end (601), and the second control unit comprises a driving member arranged at the rear part of the moving line end (601), and the driving member is electrically connected to a control button (101) arranged on the panel (1); The driving member is arranged on the back side of the fixed block (602), and the driving member comprises a sliding rod (604) fixedly connected to the fixed block (602); a cylinder body (603) is arranged on the inner wall of the sealing chamber (3); one end of the sliding rod (604) is slidably arranged inside the cylinder body (603); an air inlet pipe (203) and an air outlet pipe (204) are arranged on the outer wall of the cylinder body (603); and the air inlet pipe (203) is connected to a compressed gas tank (201); A sliding block is provided at one end of the sliding rod (604), and a sealing device is provided between the side wall of the sliding block and the inner wall of the cylinder body (603); When closing the switch, the operating rod (102) needs to be moved upward and maintained. Under the action of the compressed air inside the cylinder (603), the spring arranged inside is in a stretched state. At this time, the moving line end (601) and the fixed line end (6) are still in a separated state. At this time, the closing button of the control button (101) needs to be activated to open the electromagnetic valve arranged on the air outlet pipe (204), release the gas inside the cylinder (603), and under the action of the spring tension, the moving line end (601) moves quickly to the right, thereby achieving the purpose of fast closing the switch; When the gate is opened, the operating rod (102) contacts the limit position and pushes the connecting plate (7) and the spring inside the sealing chamber (3) to retract and move to the left. At this time, the spring changes from a stretched state to a compressed state. When the operating rod (102) triggers the position sensor (8) arranged below, the solenoid valve arranged on the air intake pipe (203) opens, causing the sliding block to move quickly to the left, thereby driving the moving line end (601) to separate from the fixed line end (6), thereby achieving the effect of opening the gate.

2. The anti-accidental-touch device for the separation switch of the high and low voltage distribution cabinet according to claim 1 is characterized in that: The front end of the sealing chamber (3) is provided with an end cover, one end of the operating rod (102) is hinged on the end cover, a through hole for accommodating the operating rod (102) is vertically provided on the panel (1), and the other end of the operating rod (102) is provided with a horizontal handle (103).

3. The anti-accidental touch device for the separation switch of the high and low voltage distribution cabinet according to claim 2 is characterized in that: The output end of the operating rod (102) includes a connecting rod (104) hingedly arranged at the bottom, and a pull rod (105) is horizontally arranged in the middle position of the end cover. The connecting rod (104) is hinged to the pull rod (105), and the pull rod (105) extends into the sealed chamber (3). One end of the pull rod (105) is fixedly connected to a connecting plate (7) arranged inside the sealed chamber (3), and the connecting plate (7) is connected to the moving line end (601).

4. The device for preventing accidental touch of the separation switch of the high and low voltage distribution cabinet according to claim 3 is characterized in that: The moving line end (601) comprises a fixed block (602), the upper and lower parts of the fixed block (602) are provided with connecting columns connected to the fixed line end (6), and a spring is provided between the connecting plate (7) and the fixed block (602).

5. The device for preventing accidental touch of the separation switch of the high and low voltage distribution cabinet according to claim 4 is characterized in that: The top of the connection column is provided with a clamping piece connected to the wiring end (6), and the end of the wiring end (6) is provided with a V-shaped groove connected to the clamping piece.

6. The device for preventing accidental touch of the separation switch of the high and low voltage distribution cabinet according to claim 1 is characterized in that: The compressed gas tank (201) is arranged on the outer wall of the equipment shell (2), and an air pump (202) for supplying air is arranged on the side of the compressed gas tank (201).

7. The device for preventing accidental touch of the separation switch of the high and low voltage distribution cabinet according to claim 6 is characterized in that: The air inlet pipe (203) and the air outlet pipe (204) are both provided with solenoid valves, and the solenoid valves are electrically connected to the control button (101).

8. The device for preventing accidental touch of the separation switch of the high and low voltage distribution cabinet according to claim 1 is characterized in that: An interface for communicating with the sulfur hexafluoride storage tank is provided on the side wall of the sealed chamber (3).

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