WO2020258407A1

WO2020258407A1 - Protective device for electrical control cabinet

Info

Publication number: WO2020258407A1
Application number: PCT/CN2019/096248
Authority: WO
Inventors: 倪晔波
Original assignee: 太仓德纳森机电工程有限公司
Priority date: 2019-06-28
Filing date: 2019-07-17
Publication date: 2020-12-30
Also published as: CN210405897U; DE202019105539U1

Abstract

Disclosed is a protective device for an electrical control cabinet, relating to the related field of protection for electrical cabinets. The purpose of the invention is to solve the problem of a cabinet door of a current electrical control cabinet not being provided with a protective device and being unable to have the function of preventing theft, so that if a mechanical lock of an electrical cabinet door is smashed, the electrical cabinet door can be opened, and internal elements are easily stolen. The protective device for the electrical control cabinet comprises an insulating base (1), wherein a cabinet body (2) is arranged at an upper end of the insulating base (1), a cabinet door (4) is arranged on the front end face of the cabinet body (2), the cabinet door (4) is connected to the cabinet body (2) by means of hinges (3), a mechanical lock (5) is arranged on one side of the front end face of the cabinet door (4), protective units (9) are arranged on an upper portion and a lower portion of the mechanical lock (5), a first groove (6) is formed in one side of each protective unit (9), a second groove (12) is formed in one side of the first groove (6), a spring (7) is arranged on one side of the interior of the first groove (6), a bolt (8) is arranged on one side of the spring (7), a cylindrical magnetic core (10) is arranged in the second groove (12), and a solenoid (11) is arranged on the cylindrical magnetic core (10).

Description

Protective device for electric control cabinet

Technical field

The utility model relates to the related field of electrical cabinet protection, in particular to a protective device for electrical control cabinets.

Background technique

Electricity is a general term for disciplines or engineering fields such as the production, transmission, distribution, use of electrical energy, and electrical equipment manufacturing. It is a science of creating, maintaining and improving confined space and environment by means of electric energy, electric equipment and electric technology, covering three aspects of electric energy conversion, utilization and research, including basic theory, applied technology, facilities and equipment. The electrical control cabinet is a device that controls electrical equipment. The electrical control cabinet is a cabinet made of steel to protect the normal operation of components. Electrical control cabinets are widely used, mainly used in chemical industry, environmental protection industry, power system, metallurgical system, industry, nuclear power industry, fire safety monitoring, transportation industry, etc.

However, today’s electrical control cabinet doors do not have protective devices and cannot play the role of anti-theft. If the mechanical lock of the electrical cabinet doors is broken, the electrical cabinet doors will be opened and the internal components will be easily stolen; therefore, the market is in urgent need Develop a protective device for electrical control cabinets to help people solve existing problems.

Utility model content

The purpose of this utility model is to provide a protective device for an electrical control cabinet to solve the problem that the current electrical control cabinet door proposed in the background art does not have a protective device and cannot play the role of anti-theft. If the electrical cabinet door is mechanically If the lock is broken, the door of the electrical cabinet will be opened and the internal components will be easily stolen.

In order to achieve the above objective, the present invention provides the following technical solutions: a protective device for an electrical control cabinet, comprising an insulating base, a cabinet is provided on the upper end of the insulating base, and a cabinet door is provided on the front end of the cabinet, so The cabinet door and the cabinet body are connected by a hinge, one side of the front end of the cabinet door is provided with a mechanical lock, and the upper and lower sides of the mechanical lock are provided with protection units.

Preferably, one side of the protection unit is provided with a first groove, one side of the first groove is provided with a second groove, and one side inside the first groove is provided with a spring, the spring A plug is provided on one side of the second groove, a cylindrical magnetic core is provided inside the second groove, and a solenoid is provided on the cylindrical magnetic core.

Preferably, the front face of the mechanical lock is provided with a handle, the upper end of the handle is provided with a key hole, the rear face of the mechanical lock is provided with a baffle, and one side of the baffle is provided with a lock cylinder shaft.

Preferably, a power supply is provided under the protection unit, a normally closed switch is provided on one side of the power supply, and a switch button is provided above one side of the normally closed switch.

Preferably, the protection unit, the power supply and the normally closed switch are connected by wires.

Preferably, the upper and lower ends of the bolt are provided with pulleys, and the distance between the upper and lower pulleys is equal to the height of the bolt.

Compared with the prior art, the beneficial effects of the utility model are:

1. The utility model connects the solenoid, the power supply and the normally closed switch, so that the normally closed switch can control the on and off of the solenoid;

2. The utility model is equipped with a protective unit. When the solenoid is energized, under the principle of electromagnetism, the cylindrical magnetic core generates magnetic force and sucks the bolt out of the first groove. At this time, the cabinet door is locked by the bolt. When the solenoid is powered off, the magnetic force of the cylindrical magnetic core disappears, and the plug springs back into the first groove under the action of the spring;

3. The utility model is equipped with a mechanical lock and a normally closed switch. When the mechanical lock is in the initial state, the cabinet door cannot be opened due to the presence of the stopper. After the key is inserted into the keyhole, the stopper can be rotated by the handle to make the stop The door cannot be blocked from opening, and the handle can be rotated 90° clockwise. When the stopper is rotated 90° under the action of the handle, the stopper touches the switch button on the normally closed switch, causing the normally closed switch to be disconnected and the spiral When the power is cut off, the protection unit returns to the initial state. The cabinet door can be opened and closed freely under the action of the hinge. After the cabinet door is closed, the mechanical lock is restored to the initial state by the handle, so that the cabinet door is locked under the action of the protection unit and the mechanical lock. .

Description of the drawings

Figure 1 is a schematic diagram of the front view structure of a protective device for an electrical control cabinet of the utility model;

Figure 2 is a schematic diagram of the connection of the protective unit, power supply, and normally closed switch of a protective device for an electrical control cabinet of the present invention;

Figure 3 is an enlarged view of area A and B of a protective device for an electrical control cabinet of the utility model;

Figure 4 is a schematic diagram of the mechanical lock structure of a protective device for an electrical control cabinet of the utility model;

Figure 5 is a circuit diagram of a protective device for an electrical control cabinet of the utility model.

In the picture: 1. Insulation base; 2. Cabinet; 3. Hinge; 4. Cabinet door; 5. Mechanical lock; 6. First groove; 7. Spring; 8. Latch; 9. Protection unit; 10. Column 11, solenoid; 12, second groove; 13, handle; 14, key hole; 15, stop piece; 16, lock core shaft; 17, power supply; 18, normally closed switch; 19, switch Button.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, not all implementations. example.

Please refer to Figures 1-5, an embodiment provided by this utility model: a protective device for an electrical control cabinet, comprising an insulating base 1, the upper end of the insulating base 1 is provided with a cabinet 2, and the front face of the cabinet 2 is provided with The cabinet door 4, the cabinet door 4 and the cabinet body 2 are connected by a hinge 3. The front side of the cabinet door 4 is provided with a mechanical lock 5, and the upper and lower sides of the mechanical lock 5 are provided with a protection unit 9, a mechanical lock 5 and a protection unit 9 Can control the switch of cabinet door 4.

Further, one side of the protection unit 9 is provided with a first groove 6, one side of the first groove 6 is provided with a second groove 12, and one side inside the first groove 6 is provided with a spring 7, which can control For the resilience of the latch 8, a latch 8 is arranged on one side of the spring 7, a cylindrical magnetic core 10 is arranged inside the second groove 12, and a solenoid 11 is arranged on the cylindrical magnetic core 10, and the solenoid 11 is switched on and off The cylindrical core 10 can generate magnetic force.

Further, the front end of the mechanical lock 5 is provided with a handle 13, the upper end of the handle 13 is provided with a key hole 14, and the rear end of the mechanical lock 5 is provided with a baffle plate 15, the handle 13 controls the baffle plate 15 to rotate, and one side of the baffle plate 15 is provided There is a lock core shaft 16, and the baffle is fixed on the lock core shaft 16 and can rotate with the rotation of the lock core shaft 16.

Further, a power source 17 is provided below the protection unit 9, a normally closed switch 18 is provided on one side of the power source 17, and a switch button 19 is provided above one side of the normally closed switch 18. The switch button 19 can control the closing and closing of the normally closed switch 18. disconnect.

Furthermore, the protection unit 9, the power supply 17 and the normally closed switch 18 are connected by wires, so that the normally closed switch 18 can control the on and off of the solenoid 11 in the protection unit 9.

Further, the upper and lower ends of the latch 8 are provided with pulleys, and the distance between the upper and lower pulleys is equal to the height of the latch 8. The pulleys make the sliding of the latch 8 in the first groove 6 smoother without excessive friction. Large makes the latch 8 stuck and cannot be moved.

Working principle: The solenoid 11, the power supply 17 and the normally closed switch 18 are connected in pairs by wires, so that the normally closed switch 18 can control the power on and off of the solenoid 11. When the solenoid 11 is energized, the electricity will generate magnetism. Under the principle of, the cylindrical magnetic core 10 generates magnetic force and sucks the latch 8 out of the first groove 6. At this time, the cabinet door 4 is locked by the latch 8 and cannot be opened. When the solenoid 11 is powered off, the cylindrical magnetic core 10 The magnetic force disappears, the latch 8 rebounds into the first groove 6 under the action of the spring 7, and the protection unit 9 cannot block the opening and closing of the cabinet door 4. When the mechanical lock 5 is in the initial state, due to the presence of the stopper 15, the The cabinet door 4 cannot be opened. After the key is inserted into the key hole 14, the baffle 15 can be rotated by the handle 13, so that the baffle 15 cannot block the opening of the cabinet door 4. The handle 13 can be rotated 90° clockwise. When the baffle 15 is in the handle 13 After rotating 90° under the action, the baffle 15 touches the switch button 19 on the normally closed switch 18, so that the normally closed switch 18 is disconnected, the solenoid 11 is de-energized, the protection unit 9 is restored to the original state, and the cabinet door 4 is hinged It can be opened and closed freely under the action of 3, and then the cabinet door 4 is closed, and the mechanical lock 5 is restored to the initial state through the handle 13, so that the cabinet door 4 is locked under the action of the protection unit 9 and the mechanical lock 5.

For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description, and therefore it is intended to fall on the rights. All the changes within the meaning and scope of the required equivalent elements are included in the present invention. Any reference signs in the claims should not be regarded as limiting the claims involved.

Claims

A protective device for an electrical control cabinet, comprising an insulating base (1), characterized in that: the upper end of the insulating base (1) is provided with a cabinet (2), and the front face of the cabinet (2) is provided with a cabinet The door (4), the cabinet door (4) and the cabinet body (2) are connected by a hinge (3), one side of the front face of the cabinet door (4) is provided with a mechanical lock (5), and the mechanical lock ( The upper and lower sides of 5) are provided with protection units (9).
The protective device for an electrical control cabinet according to claim 1, characterized in that: a first groove (6) is provided on one side of the protective unit (9), and the first groove (6) is One side is provided with a second groove (12), one side of the first groove (6) is provided with a spring (7), one side of the spring (7) is provided with a latch (8), the A cylindrical magnetic core (10) is arranged inside the second groove (12), and a solenoid (11) is arranged on the cylindrical magnetic core (10).
The protective device for an electrical control cabinet according to claim 1, characterized in that: the front end of the mechanical lock (5) is provided with a handle (13), and the upper end of the handle (13) is provided with a key hole ( 14) The rear end of the mechanical lock (5) is provided with a baffle (15), and one side of the baffle (15) is provided with a lock core shaft (16).
The protective device for an electrical control cabinet according to claim 1, characterized in that: a power source (17) is provided under the protective unit (9), and a normally closed switch is provided on one side of the power source (17) (18) A switch button (19) is provided above one side of the normally closed switch (18).
The protective device for an electrical control cabinet according to claim 4, wherein the protective unit (9), the power supply (17) and the normally closed switch (18) are connected by wires.
The protective device for an electrical control cabinet according to claim 2, wherein the upper and lower ends of the bolt (8) are provided with pulleys, and the distance between the upper and lower pulleys is equal to that of the bolt (8). height.