WO2020258402A1

WO2020258402A1 - Door lock for electrical control cabinet

Info

Publication number: WO2020258402A1
Application number: PCT/CN2019/096096
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: 2019-07-16
Publication date: 2020-12-30
Also published as: DE202019105702U1

Abstract

A door lock for an electrical control cabinet, comprising an insertion shaft (1), a fixing block (2) being mounted at one side of the insertion shaft (1); a lock plate (3) is provided on a front end face of the fixing block (2); a lock groove (4) is provided on a front end face of the lock plate (3); a rotating shaft (5) is provided below the insertion shaft (1); an empty groove (6) is provided inside the fixing block (2); a fixing snap (7) is mounted below the rotating shaft (5); a concave block (8) is provided inside the fixing snap (7); a latch bolt (9) is provided inside the concave block (8); a lock groove cover (10) is provided at one side of the lock groove (4); a pressure spring (11) is mounted at one side of the fixing snap (7); a pressing rod (12) is mounted at one side of the pressure spring (11); a limiting block (13) is provided below the pressing rod (12); a thrust button (14) is provided below the limiting block (13); one side of the latch bolt (9) is provided with a crank handle (15); a rotating screw (16) is mounted between the lock groove cover (10) and the lock groove (4); a lock hole (17) is provided inside the lock groove (4); and a groove hole (18) is provided on a front end face of the lock groove (4).

Description

Door lock of electric control cabinet

Technical field

The utility model relates to the technical field of electrical cabinet manufacturing, in particular to an electrical control cabinet door lock.

Background technique

Electrical cabinets are made of steel to protect the normal working of components. The electrical cabinets are generally made of hot-rolled steel plates and cold-rolled steel plates. Cold-rolled steel plates are softer than hot-rolled steel plates and are more suitable for electrical appliances. The production of cabinets, electrical cabinets are widely used in chemical industry, environmental protection industry, power system, metallurgical system, industry, nuclear power industry, fire safety monitoring, transportation industry, etc. At present, electrical cabinet door locks can be opened and closed with power. For electrical cabinets in high-power systems, especially traction electrical systems or wind power frequency conversion systems, as the power of the equipment increases, the voltage levels in the electrical cabinets become higher and higher, and the requirements for safe operation of personnel are also higher and higher. When the equipment in the electrical cabinet still has high voltage, opening and closing the cabinet door at will will bring double safety hazards to personnel and equipment.

At present, the existing electrical cabinets generally use locks to close and lock the cabinet doors. Because the locks are made of metal, the surface of the locks and the keyholes will be oxidized after a long time of use, and serious corrosion will occur. The lock catch is damaged, the cabinet door cannot be closed or opened, and cannot be easily opened and closed during long-term deployment and maintenance; therefore, the market urgently needs to develop an electrical control cabinet door lock to help people solve existing problems.

Utility model content

The purpose of this utility model is to provide an electrical control cabinet door lock to solve the problem that the surface of the lock catch and the keyhole will be oxidized after a long time of use proposed in the background art, and it is not convenient for long-term deployment and maintenance. The problem of opening and closing.

In order to achieve the above-mentioned object, the present invention provides the following technical solutions: an electric control cabinet door lock includes an insert shaft, one side of the insert shaft is equipped with a fixing block, and the front end of the fixing block is provided with a lock surface, The front end of the locking surface is provided with a locking groove, a rotating shaft is provided below the insert shaft, a hollow groove is provided inside the fixed block, and a fixed buckle is installed below the rotating shaft. A concave block is arranged inside, a latch rod is arranged inside the concave block, a lock groove cover is arranged on one side of the lock groove, a pressure spring is installed on one side of the fixed buckle, and one side of the pressure spring A pressing rod is installed, a limit block is arranged below the pressing rod, a push button is arranged below the limit block, a rocker is arranged on one side of the latch lever, and the lock slot cover is installed between the lock slot There is a rotating screw, a lock hole is arranged inside the lock groove, and a groove hole is arranged on the front end surface of the lock groove.

Preferably, the insertion shaft is welded to the rotating shaft, and the rotating shaft passes through the fixed block and is rotatably connected to the fixed block through a bearing sleeve.

Preferably, the rotating shaft and the fixed buckle are arranged as an integral structure, and the concave block and the fixed buckle are arranged as an integral structure.

Preferably, the pressure spring is welded to the fixed buckle, the pressure rod is welded to the pressure spring, and the pressure rod passes through the fixed block, the limit block and the lock surface and is fixedly connected to the push button.

Preferably, the top shape of the latch rod is the same as the inner shape of the concave block, and the latch rod is fixedly connected to the fixed buckle.

Preferably, the lock slot cover is movably connected with the lock slot by a rotating screw, and the inner surface of the lock slot cover is provided with a bump, and the shape of the bump is the same as the shape of the groove hole.

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

1. The utility model adopts the setting of the lock slot cover, because the lock is made of metal material, after a long time of use, the surface of the lock and the key hole will be oxidized, and serious corrosion will occur. When the cabinet door lock is not used , The lock slot cover can be turned to the surface of the lock slot by rotating the screw, and then the bumps on the inner surface of the lock slot cover and the groove hole are fitted to maintain stability, so as to facilitate closing the lock slot cover, when not in use The lock slot cover is in a closed state, and the lock hole is located on the back side of the lock slot cover to avoid exposure and oxidation and corrosion in the air.

2. Through the setting of the fixed buckle, the utility model can insert the pin rod into the lock slot and fix it with the fixed buckle during long-term deployment and maintenance of the electrical cabinet, so that the position of the insertion shaft can be adjusted quickly. It is convenient for opening and closing the cabinet door, and when the cabinet door is not in use, the push button can be pressed, so that the pressure rod is pressed down to drive the pressure spring to open the fixed buckle, and the rocker can be removed, which is convenient for storage. When the internal equipment still has high voltage, open and close the cabinet doors at will, which will bring double safety hazards to personnel and equipment.

Description of the drawings

Figure 1 is the overall front view of an electric control cabinet door lock of the utility model;

Figure 2 is a structural schematic diagram of an electric control cabinet door lock of the utility model;

Figure 3 is a schematic view of the structure of the lock surface of the present invention.

In the figure: 1. Insert shaft; 2. Fixed block; 3. Lock surface; 4. Lock groove; 5. Rotary shaft; 6. Empty groove; 7. Fixed buckle; 8. Concave surface block; 9. Latch lever; 10. Lock slot cover; 11. Pressure spring; 12. Pressure lever; 13. Limit block; 14. Push button; 15. Shake hand; 16. Rotary screw; 17, Lock hole; 18. Groove hole.

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 1-3, an embodiment provided by the present utility model: an electric control cabinet door lock, including a plug shaft 1, a fixed block 2 is installed on one side of the plug shaft 1, and the front end of the fixed block 2 is provided There is a locking surface 3, the front end of the locking surface 3 is provided with a locking groove 4, a rotating shaft 5 is provided under the inserting shaft 1, an empty slot 6 is provided inside the fixing block 2, and a fixing buckle 7 is installed under the rotating shaft 5 to fix The inside of the buckle 7 is provided with a concave block 8, the inside of the concave block 8 is provided with a latch rod 9, a lock groove cover 10 is provided on one side of the lock groove 4, and a pressure spring 11 is installed on one side of the fixed buckle 7. A pressing rod 12 is installed on one side of the pressing rod 12, a limit block 13 is arranged below the pressing rod 12, a thrust button 14 is arranged below the limiting block 13, a rocker 15 is arranged on one side of the latch lever 9, a lock slot cover 10 and a lock A rotating screw 16 is installed between the slots 4, a lock hole 17 is provided inside the lock slot 4, and a groove hole 18 is provided on the front end of the lock slot 4.

Further, the insert shaft 1 is welded to the rotating shaft 5, the rotating shaft 5 passes through the fixed block 2 and is rotatably connected to the fixed block 2 through a bearing sleeve. The rotating shaft 5 drives the insert shaft 1 to rotate to open and close the cabinet door.

Further, the rotating shaft 5 and the fixed buckle 7 are arranged as an integral structure, the concave block 8 and the fixed buckle 7 are arranged as an integral structure, and the rotating shaft 5 and the fixed buckle 7 rotate simultaneously to unlock.

Further, the pressure spring 11 is welded to the fixed buckle 7, the pressure rod 12 is welded to the pressure spring 11, and the pressure rod 12 passes through the fixed block 2, the limit block 13 and the locking surface 3 and is fixedly connected to the thrust button 14, and the thrust When the button 14 is pressed down, the pressure rod 12 is pressed downward to drive the pressure spring 11 to open the fixed buckle 7, and the rocker 15 can be removed.

Furthermore, the top shape of the latch rod 9 is the same as the inner shape of the concave block 8, the latch rod 9 is fixedly connected to the fixed buckle 7, and the rocker 15 can rotate the insert shaft 1 through the latch rod 9.

Further, the lock slot cover 10 is movably connected with the lock slot 4 by a rotating screw 16. The inner surface of the lock slot cover 10 is provided with a bump, and the shape of the bump is the same as the shape of the groove hole 18. When not in use, the lock slot cover 10 is in a closed state, and the lock hole 17 is located on the back side of the lock slot cover 10 to avoid exposure and air oxidation and corrosion.

Working principle: When in use, when deploying and repairing the electrical cabinet for a long time, unscrew the lock slot cover 10 by rotating the screw 16, insert the pin rod 9 into the lock slot 4, and fix it with the fixed buckle 7, thereby Quickly adjust the position of the insert shaft 1 to facilitate opening and closing of the cabinet door. After the work is completed, press the push button 14 so that the pressure rod 12 is pressed down to drive the pressure spring 11 to open the fixed buckle 7, and the rocker 15 can be removed For convenient storage, turn the lock slot cover 10 onto the surface of the lock slot 4 by rotating the screw 16, and then fit the bump on the inner surface of the lock slot cover 10 with the groove hole 18 to keep it stable, so as to facilitate closing the lock When the slot cover 10 is not in use, the lock slot cover 10 is in a closed state, and the lock hole 17 is located on the back side of the lock slot cover 10 to avoid oxidation and corrosion due to exposure and air.

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

An electric control cabinet door lock, comprising a plug shaft (1), characterized in that: a fixed block (2) is installed on one side of the plug shaft (1), and the front end of the fixed block (2) is provided with The lock surface (3), the front end of the lock surface (3) is provided with a lock groove (4), a rotating shaft (5) is provided under the insert shaft (1), and the fixing block (2) is provided inside There is an empty slot (6), a fixed buckle (7) is installed under the rotating shaft (5), and a concave block (8) is arranged inside the fixed buckle (7). The concave block (8) A bolt rod (9) is arranged inside, a lock groove cover (10) is arranged on one side of the lock groove (4), and a pressure spring (11) is installed on one side of the fixed buckle (7). A compression rod (12) is installed on one side of the spring (11), a limit block (13) is arranged below the compression lever (12), and a thrust button (14) is arranged below the limit block (13), A rocker (15) is provided on one side of the latch lever (9), a rotating screw (16) is installed between the lock slot cover (10) and the lock slot (4), and the inside of the lock slot (4) A lock hole (17) is provided, and a groove hole (18) is provided on the front end surface of the lock groove (4).
The electric control cabinet door lock according to claim 1, characterized in that: the insertion shaft (1) is welded to the rotating shaft (5), and the rotating shaft (5) passes through the fixed block (2) and passes through the bearing The sleeve is rotatably connected with the fixed block (2).
The electric control cabinet door lock according to claim 1, characterized in that: the rotating shaft (5) and the fixed buckle (7) are arranged as an integral structure, and the concave block (8) and the fixed buckle ( 7) Set up as an integrated structure.
The electric control cabinet door lock according to claim 1, wherein the pressure spring (11) is welded to the fixed buckle (7), and the pressure rod (12) is connected to the pressure spring (11). Welding connection, and the pressing rod (12) penetrates the fixed block (2), the limit block (13) and the lock surface (3) and is fixedly connected with the push button (14).
The electric control cabinet door lock according to claim 1, wherein the top shape of the latch rod (9) is the same as the inner shape of the concave block (8), and the latch rod (9) is fixed The buckle (7) is fixedly connected.
The electric control cabinet door lock according to claim 1, wherein the lock slot cover (10) is movably connected to the lock slot (4) by a rotating screw (16), and the lock slot cover (10) The inner surface of) is provided with bumps, and the shape of the bumps is the same as that of the recessed hole (18).