CN115424888B - A kind of safety protection shell for high-voltage switch - Google Patents

Abstract

The invention is applicable to the technical field of high-voltage switches and provides a high-voltage switch safety protection shell, which includes a protective shell, a built-in switch, an elastic positioning mechanism, a connecting rod mechanism, a ventilation mechanism and a fire extinguishing mechanism. The elastic positioning mechanism is arranged in the protective shell and the built-in switch. Between the switches, the linkage mechanism is symmetrically arranged on the side of the built-in switch. The adjacent elastic positioning mechanisms are connected through the linkage mechanism. The elastic positioning mechanism cooperates with the linkage mechanism to eliminate the vibration of the built-in switch. The ventilation mechanism is installed on the linkage mechanism. and driven by the built-in micro power equipment. The fire extinguishing mechanism moves synchronously with the elastic positioning mechanism driven by the linkage mechanism. When in use, it is convenient to quickly fix or unlock the built-in switch. It is easy to operate, has high stability, and can Eliminate the impact of vibration on the built-in switch, keep the temperature of the built-in switch within a controllable range, and minimize the harm caused by a fire in the built-in switch.

Description

A kind of safety protection shell for high-voltage switch

Technical field

The invention belongs to the technical field of high-voltage switches, and in particular relates to a safety protection shell for high-voltage switches.

Background technique

High-voltage switches refer to electrical appliances of 3KV and above that are mainly used to break and close conductive circuits. The total industrial output value of the high-voltage switch manufacturing industry is increasing year by year. The industry maintains a rapid development speed. When the current high-voltage switches are working, in order to improve operation For safety, a protective shell is usually arranged outside the switch. The existing protective shell has many positioning and holding bases during installation, and the connections are complicated and require manual fixing one by one. Not only is it inconvenient to install and disassemble, but also due to the differences between the various mechanisms. They are all fixedly connected and have no cushioning effect when subjected to external forces, and there are no effective internal temperature control and fire prevention measures.

Contents of the invention

The purpose of the embodiments of the present invention is to provide a high-voltage switch safety protection shell, aiming to solve the problems raised in the above background technology.

The embodiment of the present invention is implemented as follows: a high-voltage switch safety protective housing includes a protective housing and a built-in switch arranged inside the protective housing, and also includes:

Elastic positioning mechanisms, the elastic positioning mechanisms are provided in multiple groups, and the elastic positioning mechanisms are arranged between the protective shell and the built-in switch to fix the position of the built-in switch after it slides to a designated position;

Linkage mechanism, the linkage mechanism is symmetrically arranged on the side of the built-in switch, the adjacent elastic positioning mechanisms are connected through the linkage mechanism, and are used to push the elastic positioning mechanisms at multiple positions to move synchronously, the elastic positioning mechanism and the connecting rod The mechanism cooperates to eliminate the vibration of the built-in switch;

A ventilation mechanism, which is installed on the linkage mechanism and driven by a built-in micro power device to facilitate the exchange of airflow inside and outside the protective shell for ventilation and heat dissipation;

Fire extinguishing mechanism, the fire extinguishing mechanism is arranged at the movable end of the elastic positioning mechanism, and the fire extinguishing mechanism moves synchronously with the elastic positioning mechanism driven by the link mechanism;

Among them, a sensor is also installed on the linkage mechanism. The sensor covers the side of the built-in switch and is electrically connected to the external controller. It is used to detect the temperature and smoke inside the protective shell and connect the controller to the The calculated results are passed to the fire extinguishing agency.

Preferably, the elastic positioning mechanism includes a fixed column fixedly installed on the inner wall of the protective shell, a sliding rod slidably installed on the fixed column, and an F-shaped compression rod arranged on the side of the sliding rod;

The fixed column is covered with an elastic support member, one end of the elastic support member is connected to the sliding rod, and a limiting ring is also provided on the fixed end of the fixed column to prevent the sliding rod from detaching from the fixed column;

A telescopic part is also installed at the end of the fixed column, and the built-in switch is provided with a slot for the telescopic part to be inserted.

Preferably, the link mechanism includes a sleeve installed on the opposite side of the sliding rod, a connecting rod connecting adjacent sleeves, and a connecting rod hinged on the sleeve;

A guide rod 1 is slidably arranged vertically on the connecting rod at the top of the built-in switch, and a guide rod 2 is slidably installed on the connecting rods at other positions. One end of the guide rod 1 and the guide rod 2 is hinged with adjacent sleeves on both sides respectively. The ends of the two connecting rods away from the sleeve are hinged;

The first guide rod is covered with an elastic support member 2, one end of the elastic support member 2 is connected to the connecting rod, and the other end is connected to the inner wall of the protective shell.

Preferably, a handle is fixedly mounted on the top of the guide rod one, and the surface of the handle is provided with anti-slip patterns.

Preferably, the ventilation mechanism includes a connecting ring rotatably mounted on guide rod one and guide rod two, and a fan blade arranged outside the connecting ring;

A power output shaft is also provided inside the first and second guide rods, and the power output shaft is connected to the built-in micro power equipment;

An air guide hole is also arranged on the protective shell at a position corresponding to the power output shaft.

Preferably, the fire extinguishing mechanism includes a storage chamber provided in the sliding rod, and a flow channel provided in the F-shaped pressing rod and communicating with the storage chamber;

The free end of the F-type compression rod is equipped with a nozzle that communicates with the flow channel;

A filling pipe is also installed on the side of the sliding rod to facilitate adding fire extinguishing materials to the inside of the storage cavity.

Preferably, the bottom end of the protective shell is provided with multiple sets of support rods, and rollers are rotatably mounted on the support rods, and the rollers are in contact with the bottom surface of the built-in switch;

When the built-in switch is sent into the protective housing, the roller rotates along the support rod.

An embodiment of the present invention provides a high-voltage switch safety protection shell. When the application is in use, the provided linkage mechanism can push the elastic positioning mechanisms at multiple positions to move synchronously to facilitate quick fixing or fixing of the built-in switch placed inside the protective shell. Unlocking not only improves the convenience of operation, but also effectively eliminates the impact of vibration on the built-in switch with the damper. In addition, it can quickly exchange gases inside and outside the protective shell to ensure that the temperature of the built-in switch is within a controllable range, and the The risk of fire caused by the built-in switch is minimized.

Description of the drawings

Figure 1 is a schematic structural diagram of a high-voltage switch safety protection shell provided by an embodiment of the present invention;

Figure 2 is an enlarged view of part A in Figure 1;

Figure 3 is a three-dimensional structural view of an F-shaped holding rod in a high-voltage switch safety protection shell provided by an embodiment of the present invention;

Figure 4 is a partial enlarged view of B in Figure 1;

Figure 5 is a partial structural schematic diagram of the linkage mechanism in the safety protection housing of a high-voltage switch provided by an embodiment of the present invention.

In the drawings: 1-Protective shell; 2-Built-in switch; 3-Handle; 4-Support rod; 5-Roller; 6-Fixed column; 7-Sliding rod; 8-Elastic support part one; 9-Telescopic part; 10 -Slot; 11-F type compression rod; 12-sleeve; 13-connecting rod; 14-connecting rod; 15-guide rod one; 16-handle; 17-elastic support two; 18-power output shaft ; 19-Connecting ring; 20-Fan blade; 21-Guide rod 2; 22-Air guide hole; 23-Cutter; 24-Storage chamber; 25-Flow channel; 26-Nozzle; 27-Sensor; 28-Filling tube ; 100-elastic positioning mechanism; 200-link mechanism; 300-ventilation mechanism; 400-fire extinguishing mechanism.

Detailed ways

In order to make the purpose, technical solutions and advantages of the present invention more clear, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention and are not intended to limit the present invention.

The specific implementation of the present invention will be described in detail below with reference to specific embodiments.

As shown in Figures 1 to 5, it is a structural diagram of a high-voltage switch safety protection shell provided by one embodiment of the present invention, including a protective shell 1, a built-in switch 2, an elastic positioning mechanism 100, a linkage mechanism 200, a ventilation Mechanism 300 and fire extinguishing mechanism 400. The elastic positioning mechanism 100 is provided in multiple groups. The elastic positioning mechanism 100 is arranged between the protective shell 1 and the built-in switch 2 to facilitate positioning after the built-in switch 2 slides to a designated position. for fixation; the linkage mechanism 200 is symmetrically arranged on the side of the built-in switch 2, and the adjacent elastic positioning mechanisms 100 are connected through the linkage mechanism 200 to promote the synchronous movement of the elastic positioning mechanisms 100 at multiple positions. The mechanism 100 cooperates with the linkage mechanism 200 to eliminate the vibration of the built-in switch 2; the ventilation mechanism 300 is installed on the linkage mechanism 200 and is driven by the built-in micro power equipment to facilitate the exchange of airflow inside and outside the protective shell 1 for ventilation. Heat dissipation; the fire extinguishing mechanism 400 is arranged at the movable end of the elastic positioning mechanism 100, and the fire extinguishing mechanism 400 moves synchronously with the elastic positioning mechanism 100 driven by the link mechanism 200.

During the specific implementation of this embodiment, when the application is in use, the provided linkage mechanism 200 can push the elastic positioning mechanisms 100 in multiple positions to move synchronously to facilitate quick fixing or fixing of the built-in switch 2 placed inside the protective shell 1. Unlocking not only improves the convenience of operation, but also effectively eliminates the impact of vibration on the built-in switch 2 with the damper. In addition, it can quickly exchange gases inside and outside the protective shell 1 to ensure that the temperature of the built-in switch 2 is within a controllable range. , and minimize the hazard caused by a fire in the built-in switch 2.

In one example of the present invention, a sensor 27 is also installed on the linkage mechanism 200. The sensor 27 covers the side of the built-in switch 2 and is electrically connected to an external controller for monitoring the protective shell. 1 detects the temperature and smoke inside, and transmits the results calculated by the controller to the fire extinguishing mechanism 400. The fire extinguishing mechanism 400 receives the feedback and extinguishes the fire inside the protective shell 1. In addition, the built-in switch 2 is also installed on the side. The handle 3 is used to push the built-in switch 2 to move within the protective housing 1.

As shown in Figures 1 and 3, as a preferred embodiment of the present invention, the elastic positioning mechanism 100 includes a fixed column 6 fixedly installed on the inner wall of the protective shell 1, and a sliding rod 7 slidably installed on the fixed column 6. And the F-shaped holding rod 11 arranged on the side of the sliding rod 7;

The fixed column 6 is covered with an elastic support member 8. One end of the elastic support member 8 is connected to the sliding rod 7, and a limiting ring is also provided on the fixed end of the fixed column 6 to prevent the sliding rod from sliding. 7 moves outward to separate from the fixed column 6, and the inner wall of the protective shell 1 is also provided with a slot 23 for the sliding rod 7 to be inserted;

A telescopic member 9 is also installed at the end of the fixed column 6, and the built-in switch 2 is provided with a slot 10 for the telescopic member 9 to be inserted.

During the specific implementation of this embodiment, the telescopic member 9 described in this application can use linear drive equipment such as hydraulic cylinders, electric cylinders, air cylinders, and electric telescopic rods, and it is electrically connected to the controller to facilitate the built-in When the switch 2 slides to the designated position, the end of the telescopic member 9 is embedded in the slot 10. When it is necessary to unlock the built-in switch 2, the end of the telescopic member 9 is separated from the slot 10, so that the built-in switch 2 can be quickly unlocked. Replacement, at the same time, during the process of arranging the built-in switch 2, the linkage mechanism 200 is forced to drive the sliding rod 7 to slide along the fixed column 6, and the elastic support member 8 is elastically deformed under the force. In addition, it can also be used as needed. A damper is provided at the end of the elastic support member 8 to cooperate with it, so that when the protective shell 1 is vibrated, the impact of the vibration caused by external force on the built-in switch 2 is eliminated.

As shown in Figures 1, 4 and 5, as another preferred embodiment of the present invention, the linkage mechanism 200 includes a sleeve 12 installed on the opposite side of the sliding rod 7, and a sleeve connecting adjacent sleeves 12. The connecting rod 13 and the connecting rod 14 hinged on the sleeve 12;

A guide rod 15 is slidably arranged vertically on the connecting rod 13 at the top of the built-in switch 2, and a guide rod 21 is slidably installed on the connecting rod 13 at other positions. One end of the guide rod 15 and the guide rod 2 21 are respectively The ends of the two connecting rods 14 hinged to adjacent sleeves 12 on both sides away from the sleeve 12 are hinged;

The guide rod 15 is covered with an elastic support member 17 . One end of the elastic support member 17 is connected to the connecting rod 13 , and the other end is connected to the inner wall of the protective shell 1 .

During the specific implementation of this embodiment, a handle 16 is fixedly installed on the top of the guide rod 15, and the surface of the handle 16 is provided with anti-slip patterns to increase the distance between the handle and the palm during the pulling process. The static friction force prevents loosening during the pulling process. When arranging the built-in switch 2, pull the handle 16 outward to drive the guide rod 15 to slide along the protective shell 1. The guide rod 15 drives the two sides of the The connecting rod 14 swings in the opposite plane, and during the swing, the sleeve 12 is pushed to slide along the connecting rod 13, thereby pushing the sliding rod 7 to slide along the fixed column 6; at the same time, the connecting rod 13 translates outward, and the guide rod The power output shaft 18 set on the shaft 15 undergoes elastic deformation due to force.

As shown in Figures 1, 4 and 5, as another preferred embodiment of the present invention, the ventilation mechanism 300 includes a connecting ring 19 that is rotatably installed on the guide rod 15 and the guide rod 221. Connect the fan blades 20 on the outside of the ring 19;

A power output shaft 18 is also provided inside the guide rod one 15 and the guide rod two 21, and the power output shaft 18 is connected to the built-in micro power equipment;

An air guide hole 22 is also arranged on the protective housing 1 at a position corresponding to the power output shaft 18 .

During the specific implementation of this embodiment, the built-in micro power equipment in this application can be a motor, etc. When the built-in switch 2 operates to generate heat, the sensor 27 detects that the temperature of the internal space of the protective shell 1 rises, and the micro power equipment such as a motor Such work drives the power output shaft 18, the connecting ring 19 and the fan blade 20 to rotate synchronously, so that when the fan blade 20 rotates, the heat mixed in the air can be exported outward, allowing gas exchange, and by adjusting the power The rotation speed of the output shaft 18 controls the gas exchange speed, so that the ambient temperature inside the protective housing 1 is within a controllable range, ensuring the normal operation of the built-in switch 2.

As shown in Figure 1, as another preferred embodiment of the present invention, the fire extinguishing mechanism 400 includes a storage cavity 24 provided in the sliding rod 7, and a flow path provided in the F-shaped pressing rod 11 that communicates with the storage cavity 24. Tao 25;

The free end of the F-shaped holding rod 11 is equipped with a nozzle 26 that communicates with the flow channel 25;

A filling pipe 28 is also installed on the side of the sliding rod 7 to facilitate adding fire extinguishing materials into the storage chamber 24 .

During the specific implementation of this embodiment, when the sensor 27 detects an internal fire, the material stored in the storage chamber 24 is exported from the storage chamber 24 , and the fire-extinguishing material is directed toward the flow channel 25 provided in the F-type compression rod 11 It moves outward and is finally ejected from the nozzle 26 so as to cover the surface of the built-in switch 2 and extinguish it quickly.

As shown in Figures 1 and 2, as another preferred embodiment of the present invention, the bottom end of the protective shell 1 is provided with multiple sets of support rods 4, and rollers 5 are rotatably mounted on the support rods 4, and the rollers 5 is in contact with the bottom surface of the built-in switch 2. When the built-in switch 2 is sent into the protective shell 1, the roller 5 rotates along the support rod 4

During the specific implementation of this embodiment, when arranging the built-in switch 2 in this embodiment, the built-in switch 2 is placed on the roller 5. During the process of pushing the built-in switch 2 inward, the roller 5 moves along the support rod 4. The top rotates to facilitate quickly moving the built-in switch 2 to the designated installation position.

To sum up, when in use, the handle 16 is pulled outward, and the guide rod 15 drives the connecting rods 14 on both sides to swing in the opposite plane, and during the swing, the sleeve 12 is pushed to slide along the connecting rod 13, thereby Push the sliding rod 7 to slide along the fixed column 6, the connecting rod 13 translates outward, and the power output shaft 18 set on the guide rod 15 undergoes elastic deformation due to force. At the same time, the sliding rod 7 moves along the fixed column 6 During the process, the F-shaped pressing rod 11 moves synchronously, and the telescopic member 9 is in a contracted state. When placing the built-in switch 2, place it on the roller 5. In the process of pushing the handle 3, the The roller 5 rotates along the top of the support rod 4. After reaching the designated position, the telescopic member 9 extends out and is inserted into the slot 10. At the same time, the handle 16 is released and slides down under the action of the power output shaft 18 and the elastic support member 18. The rod 7 moves in the opposite direction along the fixed column 6, and the F-type holding rod 11 is provided to hold the position of the built-in switch 2, and the hinge point of the connecting rod 14 is in contact with the built-in switch 2. When it is shaken, it can also be connected by the connection The power output shaft 18, the elastic support 18 and the damper provided on the side of the rod 13 eliminate the possible effects of vibration, and when the built-in switch 2 works, the sensor 27 detects the internal temperature. When the temperature rises, the power output shaft 18 drives the connecting ring 19 and the fan blade 20 to rotate synchronously, so that when the fan blade 20 rotates, the heat mixed in the air can be exported outward, allowing gas exchange, and by adjusting the speed of the power output shaft 18, The gas exchange speed is controlled so that the ambient temperature inside the protective shell 1 is within a controllable range. Not only that, the sensor 27 can also detect the smoke inside the protective shell 1. When the sensor 27 detects an internal fire, the temperature in the storage cavity 24 The stored material is led out from the storage chamber 24, and the fire-extinguishing material moves outward along the flow channel 25 provided in the F-type hold-down rod 11, and is finally ejected from the nozzle 26, so as to cover the surface of the built-in switch 2 and quickly extinguish it. ; In this application, the linkage mechanism 200 is configured to promote the synchronous movement of the elastic positioning mechanisms 100 at multiple positions, so as to quickly fix or unlock the built-in switch 2 placed inside the protective shell 1, which not only improves the convenience of operation, but also cooperates with The damper can effectively eliminate the impact of vibration on the built-in switch 2. In addition, it can quickly exchange gases inside and outside the protective shell 1, ensure that the temperature of the built-in switch 2 is within a controllable range, and reduce the harm caused by a fire in the built-in switch 2. lowest.

It is obvious to those skilled in the art that the present invention is not limited to the details of the above-described exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be regarded as illustrative and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is therefore intended that all claims falling within the claims All changes within the meaning and scope of equivalent elements are included in the present invention.

In addition, it should be understood that although this specification is described in terms of implementations, not each implementation only contains an independent technical solution. This description of the specification is only for the sake of clarity, and those skilled in the art should take the specification as a whole. , the technical solutions in each embodiment can also be appropriately combined to form other implementations that can be understood by those skilled in the art.

Claims (7)

1. A high-voltage switch safety protection shell, including a protective shell and a built-in switch arranged inside the protective shell, and is characterized in that it also includes: Elastic positioning mechanisms, the elastic positioning mechanisms are provided in multiple groups, and the elastic positioning mechanisms are arranged between the protective shell and the built-in switch to fix the position of the built-in switch after it slides to a designated position; Linkage mechanism, the linkage mechanism is symmetrically arranged on the side of the built-in switch, the adjacent elastic positioning mechanisms are connected through the linkage mechanism, and are used to push the elastic positioning mechanisms at multiple positions to move synchronously, the elastic positioning mechanism and the connecting rod The mechanism cooperates to eliminate the vibration of the built-in switch; A ventilation mechanism, which is installed on the linkage mechanism and driven by a built-in micro power device to facilitate the exchange of airflow inside and outside the protective shell for ventilation and heat dissipation; Fire extinguishing mechanism, the fire extinguishing mechanism is arranged at the movable end of the elastic positioning mechanism, and the fire extinguishing mechanism moves synchronously with the elastic positioning mechanism driven by the link mechanism; Among them, a sensor is also installed on the linkage mechanism. The sensor covers the side of the built-in switch and is electrically connected to the external controller. It is used to detect the temperature and smoke inside the protective shell and connect the controller to the The calculated results are fed back to the fire extinguishing agency. 2. The high-voltage switch safety protection shell according to claim 1, characterized in that the elastic positioning mechanism includes a fixed column fixedly installed on the inner wall of the protective shell, a sliding rod slidably installed on the fixed column, and a sliding rod arranged on the sliding rod. F-shaped holding rod on the side; The fixed column is covered with an elastic support member, one end of the elastic support member is connected to the sliding rod, and a limiting ring is also provided on the fixed end of the fixed column to prevent the sliding rod from detaching from the fixed column; A telescopic component is also installed at the end of the fixed column, and the built-in switch is provided with a slot for the telescopic component to be embedded. 3. The high-voltage switch safety protection shell according to claim 2, characterized in that the linkage mechanism includes a sleeve installed on the opposite side of the sliding rod, a connecting rod connecting adjacent sleeves, and a connecting rod hinged on the sleeve. connecting rod; A guide rod 1 is slidably arranged vertically on the connecting rod at the top of the built-in switch, and a guide rod 2 is slidably installed on the connecting rods at other positions. One end of the guide rod 1 and the guide rod 2 are adjacent to each other on both sides. The ends of the two connecting rods of the barrel hinged away from the sleeve are hinged; The first guide rod is covered with an elastic support member 2, one end of the elastic support member 2 is connected to the connecting rod, and the other end is connected to the inner wall of the protective shell. 4. The high-voltage switch safety protection shell according to claim 3, characterized in that a handle is fixedly installed on the top of the guide rod one, and the surface of the handle is provided with anti-slip patterns. 5. The high-voltage switch safety protection shell according to claim 3, characterized in that the ventilation mechanism includes a connecting ring rotatably installed on the first guide rod and the second guide rod, and a fan blade arranged outside the connecting ring; A power output shaft is also provided inside the first and second guide rods, and the power output shaft is connected to the built-in micro power equipment; An air guide hole is also arranged on the protective shell at a position corresponding to the power output shaft. 6. The high-voltage switch safety protection shell according to claim 2, characterized in that the fire extinguishing mechanism includes a storage cavity provided in the sliding rod, and a flow channel provided in the F-type compression rod and communicating with the storage cavity; The free end of the F-type compression rod is equipped with a nozzle that communicates with the flow channel; A filling pipe is also installed on the side of the sliding rod to facilitate adding fire extinguishing materials to the inside of the storage cavity. 7. The high-voltage switch safety protection shell according to claim 1, characterized in that the bottom end of the protection shell is provided with multiple sets of support rods, and rollers are rotatably mounted on the support rods, and the rollers are in contact with the bottom surface of the built-in switch. Abut; When the built-in switch is sent into the protective housing, the roller rotates along the support rod.