A locking rod fixing structure for an electrical control cabinet

Abstract

The present invention relates to the technical field of electrical control cabinets, and specifically to a locking rod fixing structure for an electrical control cabinet, comprising a cabinet body and a door panel rotatably mounted on the cabinet body, and also comprising a two-way locking assembly, comprising a lock body fixedly mounted on the door panel, locking rods are movably inserted on both upper and lower sides of the lock body, and a lock head is provided at one end of the two locking rods that are far away, and a lock block adapted to the lock head is fixedly mounted on the inner walls of the upper and lower sides of the cabinet body; a detection assembly, comprising a detection box mounted on the lock block, a limit plate is slidably mounted on both sides of the detection box, a lock hole adapted to the lock head is provided on the lock block, a baffle is provided in the lock hole, and a limit hole adapted to the limit plate is provided on one side of the lock hole. The unique installation hole arrangement in the cabinet body fits tightly with the modular hole position on the frame, is not easy to loosen after installation, has a beautiful and compact appearance, and occupies little space. Secondly, a detection assembly is provided, and when the shell leaks electricity, the door panel cannot be closed, thereby improving the safety of the control cabinet.

Description

Technical Field

[0001] The invention relates to the technical field of electric control cabinets, and in particular to a locking rod fixing structure for an electric control cabinet. Background Art

[0002] A control cabinet is a device that assembles switchgear, measuring instruments, protective electrical appliances and auxiliary equipment in a closed or semi-closed metal cabinet or on a screen according to electrical wiring requirements. Its layout should meet the requirements for normal operation of the power system, facilitate maintenance, and not endanger the safety of people and surrounding equipment.

[0003] The existing door locks used in electrical control cabinets are either welded locks, which will cause local welding deformation, poor product processing consistency, and instability; the other is a movable sheet metal bending lock, which is large and unsightly, and has poor strength. Secondly, when there is a leakage outside the electrical cabinet, the operator can still close the cabinet door, which cannot serve as a warning, and is not conducive to safe operation and equipment safety. Summary of the invention

[0004] In view of the above-mentioned shortcomings of the prior art, the present invention provides a locking rod fixing structure for an electrical control cabinet, which can effectively solve the problems of unstable door locks, poor strength and low safety in the prior art.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions:

[0006] The present invention provides a locking rod fixing structure for an electrical control cabinet, comprising a cabinet body and a door panel rotatably mounted on the cabinet body, and further comprising:

[0007] A two-way locking assembly comprises a lock body fixedly mounted on a door panel, a rotating shaft being rotatably mounted in the lock body, two wedge-shaped blocks being arranged on the rotating shaft, locking rods being movably inserted on both upper and lower sides of the lock body, and when the rotating shaft is rotated, the two wedge-shaped blocks squeeze the two locking rods one by one to move them away from each other, a locking head being arranged on one end of the two locking rods that are away from each other, and locking blocks matching the locking heads being fixedly mounted on both upper and lower inner walls of the cabinet body;

[0008] The detection component includes a detection box installed on the locking block, and limit plates are slidably installed on both sides of the detection box. The locking block is provided with a lock hole adapted to the lock head, a baffle is provided in the lock hole, and a limit hole adapted to the limit plate is provided on one side of the lock hole.

[0009] Furthermore, the detection component also includes an electromagnet fixedly installed in the detection box, and two permanent magnets are slidably installed in the detection box. When the electromagnet is energized, it repels the permanent magnet. The two limit plates are fixedly connected to the two permanent magnets one by one. A grounding wire is connected to the outside of the cabinet. An elastic connector is provided at the top of the grounding wire. The elastic connector is electrically connected to the circuit where the electromagnet is located.

[0010] Furthermore, a plurality of blowing holes are provided on the top wall of the baffle, and the blowing holes are connected with a shunt pipe, and the shunt pipe is communicated with the first piston tube.

[0011] Furthermore, an air vent hole is provided on the first piston rod, an adjusting ring is slidably mounted on the first piston rod, an elastic rod is connected between the adjusting ring and the baffle, a fixing ring is provided at the top end of the first piston tube, and a push rod is provided on the fixing ring.

[0012] Furthermore, a plurality of mounting holes are provided at equal distances on the inner wall of the cabinet, a mounting plate is provided on one side of the locking block, and the mounting plate is installed in the mounting holes by self-tapping screws.

[0013] Furthermore, a mounting frame is fixedly installed on the door panel, the mounting frame is ring-shaped, and a plurality of connecting holes are opened on the mounting frame, a sliding frame is installed on the connecting holes, a rotating rod is rotatably installed on the inner wall of the cabinet, a round rod-shaped sliding rod is fixedly installed on one end of the rotating rod, and the sliding rod is slidably installed on the sliding frame.

[0014] Furthermore, a guide frame is fixedly mounted on the door panel, and the lock head is located in the guide frame.

[0015] Furthermore, two nylon rollers are symmetrically rotatably mounted in the guide frame, and the locking rod is located between the two nylon rollers.

[0016] Furthermore, the rotating shaft is provided with a handle, and the handle is provided with a plastic sleeve.

[0017] Compared with the known prior art, the technical solution provided by the present invention has the following beneficial effects:

[0018] The unique installation hole arrangement in the cabinet fits tightly with the modular holes on the frame and is not easy to loosen after installation. It has a beautiful and compact appearance and occupies little space. Secondly, a detection component is set. When the shell leaks electricity, the door panel cannot be closed, which improves the safety of the control cabinet. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0020] Figure 1 It is an overall schematic diagram of the present invention from the left side perspective;

[0021] Figure 2 It is an overall schematic diagram of the present invention from the right side viewing angle;

[0022] Figure 3 for Figure 1 A magnified view of the structure of part A;

[0023] Figure 4 for Figure 1 A magnified view of the structure of part B;

[0024] Figure 5 It is a structural schematic diagram of the lock body;

[0025] Figure 6 It is a structural schematic diagram of the locking block part;

[0026] Figure 7 It is a structural schematic diagram from the left side perspective when the lock block and the baffle are separated;

[0027] Figure 8 It is a structural schematic diagram from the right side perspective when the lock block and the baffle are separated;

[0028] Fig. 9 is a cross-sectional view of a first piston tube and a second piston tube;

[0029] Fig.10 is a top view of the baffle;

[0030] Fig.11 Schematic diagram of the internal structure of the detection box;

[0031] Fig.12 This is a diagram showing the positions of the first piston tube and the second piston tube in the cabinet.

[0032] The numbers in the figure represent: 1, cabinet; 2, door panel; 3, rotating rod; 4, sliding frame; 5, sliding rod; 6, mounting frame; 7, lock body; 8, handle; 9, rotating shaft; 10, locking rod; 11, mounting hole; 12, locking block; 13, guide frame; 14, lock head; 15, mounting plate; 16, baffle; 17, rotating plate; 18, first piston tube; 19, first piston rod; 20, second piston tube; 21, second piston rod; 22, driving plate; 23, connecting pipe; 24, air vent; 25, adjusting ring; 26, fixing ring; 27, reset spring; 28, flip airbag; 29, shunt pipe; 30, blowing hole; 31, grounding wire; 32, elastic connector; 33, detection box; 34, electromagnet; 35, permanent magnet; 36, limit plate. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] The present invention will be further described below in conjunction with the embodiments.

[0035] Embodiment: A locking rod fixing structure for an electrical control cabinet, referring to Figure 1-Figure 5 , including a cabinet body 1 and a door panel 2 rotatably mounted on the cabinet body 1, and a two-way locking assembly is also provided, including a lock body 7 fixedly mounted on the door panel 2, a rotating shaft 9 is rotatably mounted in the lock body 7, two wedge-shaped blocks are provided on the rotating shaft 9, and locking rods 10 are movably inserted on the upper and lower sides of the lock body 7. When the rotating shaft 9 rotates, the two wedge-shaped blocks squeeze the two locking rods 10 away from each other one by one, and the two locking rods 10 are each provided with a lock head 14 at one end away from each other. Lock blocks 12 adapted to the lock head 14 are fixedly mounted on the inner walls of the upper and lower sides of the cabinet body 1, and the inner wall of the cabinet body 1 is equidistant from the inner wall of the cabinet body 1. A plurality of mounting holes 11 are provided, a mounting plate 15 is provided on one side of the lock block 12, the mounting plate 15 is installed in the mounting hole 11 by self-tapping screws, a mounting frame 6 is fixedly installed on the door panel 2, the mounting frame 6 is annular, and a plurality of connecting holes are provided on the mounting frame 6, a sliding frame 4 is installed on the connecting hole, a rotating rod 3 is rotatably installed on the inner wall of the cabinet 1, a round rod-shaped sliding rod 5 is fixedly installed on one end of the rotating rod 3, and the sliding rod 5 is slidably installed on the sliding frame 4, a guide frame 13 is fixedly installed on the door panel 2, and a lock head 14 is located in the guide frame 13.

[0036] like Figure 1 and Figure 2As shown, by pre-setting mounting holes 11 and mounting frames 6 on the inner wall of the cabinet 1 and the door panel 2, the lock block 12 and the lock body 7 are installed in the preset hole positions, replacing the original welding and sheet metal methods, reducing the difficulty of installation and improving the stability after installation. The lock body 7 adopts a rotation drive method, and a handle 8 is provided on the rotating shaft 9 of the lock body 7, and a plastic sleeve is provided on the handle 8. The rotating shaft 9 drives the rotating shaft 9 to rotate by rotating the handle 8. The rotating shaft 9 drives the two locking rods 10 to slide through the extrusion of the wedge block. One of the two locking rods 10 slides upward and is inserted into the upper lock block 12, and the other lock rod 10 slides down and is inserted into the lower lock block 12. It is simple to use and easy to operate.

[0037] A guide frame 13 is provided on the sliding path of the lock head 14 , which on the one hand improves the stability of the connection between the lock block 12 and the lock head 14 , and on the other hand, a nylon roller is provided in the guide frame 13 to reduce the noise generated when the lock rod 10 slides.

[0038] refer to Figure 6-Figure 12 In order to improve the safety of the control cabinet, a detection component is also provided, including a detection box 33 installed on the lock block 12, and limit plates 36 are slidably installed on both sides of the detection box 33. A lock hole adapted to the lock head 14 is provided on the lock block 12, and a baffle 16 is provided in the lock hole. A limit hole adapted to the limit plate 36 is provided on one side of the lock hole. The detection component also includes an electromagnet 34 fixedly installed in the detection box 33, and two permanent magnets 35 are slidably installed in the detection box 33. When the electromagnet 34 is energized, it repels the permanent magnet 35. The two limit plates 36 are fixedly connected to the two permanent magnets 35 one by one. The cabinet 1 is externally connected to a grounding wire 31, and an elastic connector 32 is provided at the top of the grounding wire 31. The elastic connector 32 and the electromagnet 34 are electrically connected in the circuit. A first piston tube 18 is provided below the baffle 16, and a first piston rod 19 is movably inserted at the top of the first piston tube 18, and an air inlet is provided at the bottom of the first piston rod 19. A driving groove is provided on the top wall of 16, a rotating plate 17 is rotatably installed in the driving groove, a flip airbag 28 is provided in the driving groove, the flip airbag 28 is connected to the first piston tube 18, a second piston tube 20 is provided on one side of the first piston tube 18, a second piston rod 21 is movably inserted on one side of the second piston tube 20, and a return spring 27 is movably inserted on the second piston rod 21, a driving plate 22 is fixedly installed on the second piston rod 21, a connecting pipe 23 is connected between the first piston tube 18 and the second piston tube 20, a plurality of blowing holes 30 are provided on the top wall of the baffle 16, and the blowing holes 30 are connected to a shunt pipe 29, the shunt pipe 29 is connected to the first piston tube 18, a venting hole 24 is provided on the first piston rod 19, an adjusting ring 25 is slidably installed on the first piston rod 19, and an elastic rod is connected between the adjusting ring 25 and the baffle 16, a fixing ring 26 is provided on the top end of the first piston tube 18, and a push rod is provided on the fixing ring 26.

[0039] The locking block 12 is installed in the preset mounting hole 11 by self-tapping screws. There is no direct contact between the cabinet 1 and the ground, and there is a certain gap. There is a certain space in the mounting hole 11. Fig.12 As shown, the first piston tube 18 and the second piston tube 20 are actually located outside the cabinet 1 and are installed in the lock block 12 by inserting upward (such as Figure 6 It is fixed to the cabinet body 1 by bolts (not shown in the figure, but it does not affect the subsequent functions). When the door panel 2 is closed, it will squeeze the driving plate 22 and the second piston rod 21. Fig. 9 As shown, the second piston rod 21 is squeezed into the second piston tube 20, and the air in the second piston tube 20 enters the first piston tube 18 through the connecting tube 23. Under the action of air pressure, the first piston rod 19 moves into the first piston tube 18. During the movement of the first piston rod 19, the air in the other part of the first piston tube 18 will be transmitted to the air leakage hole 24, the shunt pipe 29 and the flip airbag 28 through the first piston rod 19. It is worth noting that the air leakage hole 24 and the blowing hole 30 here have a small aperture. When the driving plate 22 is squeezed quickly, the air flow rate is large, the air intake is greater than the air discharge, and the flip airbag 28 expands rapidly, pushing the rotating plate 17 to rotate. Because there will be some wires in the control cabinet, in order to prevent the wires from being placed on or falling on the lock hole of the lock block 12, the wires can be pushed away by flipping the rotating plate 17, so that the wires will not be squeezed when the lock head 14 moves down later, ensuring the safety of the control cabinet. In addition, the airflow blown out of the blowing hole 30 can clean the lock hole to prevent some foreign matter from existing inside. After the internal air pressure stabilizes, the flip airbag 28 retracts and the rotating plate 17 is reset (a coil spring is provided at the rotating connection of the rotating plate 17, and a smaller rebound force can be set), and an adjusting ring 25 is provided at the air leakage hole 24 to block the air leakage hole 24. When the first piston rod 19 gradually moves downward, the adjusting ring 25 is squeezed and moved upward by the push rod on the fixing ring 26, so that the connecting hole diameter between the air leakage hole 24 and the outside becomes larger, thereby accelerating the air leakage speed. The air leakage hole 24 here can be not provided, or it can be completely blocked by the adjusting ring 25, and the choice is made according to actual needs.

[0040] In addition, a detection box 33 is provided, and an electromagnet 34 in the detection box 33 is connected in series with the grounding wire 31. When the housing is energized, current flows through the starter electromagnet 34. In the case of long-term leakage, the electromagnet 34 drives the two permanent magnets 35 to slide through the repulsive force, and extends into the lock hole through the sliding of the limit plate 36, blocking the baffle 16 from moving down, so that the door panel 2 cannot be closed normally, thereby reminding the operator. In normal circumstances, when the electromagnet 34 is closed, the permanent magnet 35 absorbs the iron core of the electromagnet 34, so that the limit plate 36 will not enter the lock hole.

[0041] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of the present invention.

Claims

1. A locking rod fixing structure for an electrical control cabinet, comprising a cabinet body (1) and a door panel (2) rotatably mounted on the cabinet body (1), characterized in that: Also includes: A two-way locking assembly comprises a lock body (7) fixedly mounted on a door panel (2), a rotating shaft (9) being rotatably mounted in the lock body (7), two wedge-shaped blocks being arranged on the rotating shaft (9), locking rods (10) being movably inserted on both upper and lower sides of the lock body (7), the two wedge-shaped blocks pressing the two locking rods (10) away from each other when the rotating shaft (9) rotates, a locking head (14) being arranged at one end of the two locking rods (10) away from each other, and locking blocks (12) matching the locking heads (14) being fixedly mounted on both upper and lower inner walls of the cabinet (1); The detection assembly comprises a detection box (33) mounted on a locking block (12), limit plates (36) being slidably mounted on both sides of the detection box (33), a lock hole matching the lock head (14) being provided on the locking block (12), a baffle (16) being provided in the lock hole, and a limit hole matching the limit plate (36) being provided on one side of the lock hole; The detection assembly further comprises an electromagnet (34) fixedly mounted in the detection box (33); two permanent magnets (35) are slidably mounted in the detection box (33); the electromagnet (34) repels the permanent magnet (35) when energized; the two limit plates (36) are fixedly connected to the two permanent magnets (35) one by one; the cabinet (1) is externally connected to a ground wire (31); a top end of the ground wire (31) is provided with an elastic connector (32); the elastic connector (32) is electrically connected to a circuit where the electromagnet (34) is located; A first piston tube (18) is provided below the baffle (16), a first piston rod (19) is movably inserted at the top end of the first piston tube (18), and an air inlet hole is provided at the bottom end of the first piston rod (19), a driving groove is provided on the top wall of the baffle (16), a rotating plate (17) is rotatably installed in the driving groove, a flip airbag (28) is provided in the driving groove, and the flip airbag (28) is connected to the first piston tube (18), a second piston tube (20) is provided on one side of the first piston tube (18), a second piston rod (21) is movably inserted at one side of the second piston tube (20), and a return spring (27) is movably inserted on the second piston rod (21), a driving plate (22) is fixedly installed on the second piston rod (21), and a connecting tube (23) is connected between the first piston tube (18) and the second piston tube (20); A plurality of blowing holes (30) are formed on the top wall of the baffle (16), and the blowing holes (30) are connected to a shunt pipe (29), and the shunt pipe (29) is in communication with the first piston tube (18); The first piston rod (19) is provided with an air leakage hole (24), an adjustment ring (25) is slidably mounted on the first piston rod (19), an elastic rod is connected between the adjustment ring (25) and the baffle (16), a fixing ring (26) is provided at the top end of the first piston tube (18), and a push rod is provided on the fixing ring (26).

2. The locking rod fixing structure for an electrical control cabinet according to claim 1, characterized in that: A plurality of mounting holes (11) are provided at equal intervals on the inner wall of the cabinet (1), a mounting plate (15) is provided on one side of the locking block (12), and the mounting plate (15) is mounted in the mounting holes (11) by means of self-tapping screws.

3. The locking rod fixing structure for an electrical control cabinet according to claim 1, characterized in that: A mounting frame (6) is fixedly mounted on the door panel (2), the mounting frame (6) is annular, and a plurality of connection holes are formed on the mounting frame (6), a sliding frame (4) is mounted on the connection holes, a rotating rod (3) is rotatably mounted on the inner wall of the cabinet body (1), a round rod-shaped sliding rod (5) is fixedly mounted on one end of the rotating rod (3), and the sliding rod (5) is slidably mounted on the sliding frame (4).

4. The locking rod fixing structure for an electrical control cabinet according to claim 1, characterized in that: A guide frame (13) is fixedly mounted on the door panel (2), and the lock head (14) is located in the guide frame (13).

5. The locking rod fixing structure for an electrical control cabinet according to claim 4, characterized in that: Two nylon rollers are symmetrically mounted in the guide frame (13) for rotation, and the locking rod (10) is located between the two nylon rollers.

6. The locking rod fixing structure for an electrical control cabinet according to claim 1, characterized in that: The rotating shaft (9) is provided with a handle (8), and the handle (8) is provided with a plastic sleeve.

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