Electric cabinet grounding switch operation hole padlock device

Abstract

The invention discloses an electrical cabinet grounding switch operation hole padlock device which comprises an electrical cabinet body, a fixed shell is arranged on the side wall of the electrical cabinet body, a movable shell is hinged to one side of the fixed shell, a hinge rod is arranged at the hinge position of the movable shell and the fixed shell, and the hinge rod is fixedly connected with the movable shell. An extrusion column abuts against a second unlocking column, the second unlocking column drives a limiting rod to relieve limiting on a pressing plate, meanwhile, an operator pinches the two unlocking rods with one hand, the two unlocking rods are inserted into a sliding groove and then loosened, the two unlocking rods are reset under the acting force of an unlocking spring, and therefore the two limiting plates abut against the two unlocking rods to slide towards the two sides correspondingly; the overall operation is simple and convenient, the emergency unlocking mechanism can be used in emergency when an operator holding a key is absent, the operation difficulty is low, emergencies can be effectively handled, the accident occurrence probability of the high-voltage cabinet is greatly reduced, and the overall safety of the device is improved.

Description

Technical Field

[0001] The invention relates to the technical field of grounding switches for electrical cabinets, in particular to a padlock device for an operating hole of a grounding switch for an electrical cabinet. Background Art

[0002] The grounding switch of an electrical cabinet refers to a mechanical grounding device that releases static electricity from the equipment and circuits being repaired and ensures the personal safety of maintenance personnel during power outages. It is not required to carry current under normal circuit conditions. Therefore, when the switch cabinet is operating normally, in order to prevent misoperation of the grounding switch, installing a padlock device on the operating hole has become a new measure for the electrical cabinet to achieve the "five protection" requirements.

[0003] The utility model patent with patent number CN216981205U discloses a padlock device for the operating hole of the grounding switch of an electrical cabinet, which relates to the technical field of the grounding switch of an electrical cabinet, and is used to install a padlock at the corresponding position of the operating hole of the grounding switch of the electrical cabinet, and includes a padlock component, which includes: a mounting assembly, which includes a mounting block mounted at the position of the operating hole of the grounding switch of the electrical cabinet; a hinge assembly, which includes a hinge block pivotally mounted on the mounting block, and a hinge connector movably arranged on the hinge portion; a clamping assembly, which includes clamping blocks symmetrically arranged on both sides of the hinge connector and an elastic member used to drive the hinge connector to abut against the mounting connector. The invention can switch the opening and closing state of the grounding switch lock piece by flipping the hinge block relative to the mounting block to a disengaged state, and can lock the lock piece of the grounding switch by flipping the hinge block relative to the mounting block again to a fitted state, and at the same time, the clamping assembly makes the connection between the hinge block and the mounting block more stable.

[0004] The above-mentioned device limits the grounding switch by setting an I-shaped limit hole to prevent unauthorized personnel from operating it incorrectly. However, when encountering an emergency during actual work, the steps from opening the padlock to opening the hinge assembly and finally pressing the operating switch are relatively cumbersome. When the device fails or a fire occurs, the opening and closing operations cannot be performed quickly, which greatly increases the accident rate and affects the personal safety of the operator. Summary of the invention

[0005] The technical solution of the present invention aims at the technical problem that the existing technical solutions are too simple, and provides a solution that is significantly different from the existing technologies. Specifically, the purpose of the present invention is to provide a padlock device for the operating hole of the grounding switch of an electrical cabinet to solve the problems proposed in the above-mentioned background technology, such as complicated operating steps, inability to take corresponding measures quickly in the face of emergency situations, and high accident rate.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a padlock device for an operating hole of an earthing switch of an electrical cabinet, comprising an electrical cabinet body, a fixed shell being provided on the side wall of the electrical cabinet body, a movable shell being hingedly provided on one side of the fixed shell, a hinge rod being provided at the hinge between the movable shell and the fixed shell, and the hinge rod being fixedly connected to the movable shell, an operation panel being slidably provided on the inner side wall of the electrical cabinet, a pressure plate being fixedly provided on the side of the outer wall of the electrical cabinet, a limit block being fixedly provided on the side of the inner wall of the electrical cabinet body, a first unlocking column and a second unlocking column being respectively inserted on the inner side wall of the electrical cabinet body, a limit rod being fixedly provided between the first unlocking column and the second unlocking column, a linkage mechanism being provided inside the movable shell, an emergency unlocking mechanism being movably abutted on the upper side of the movable shell, a first hinge being provided on the side wall of the movable shell, and a second hinge being provided on the side wall of the electrical cabinet body.

[0007] Preferably, the linkage mechanism includes a linkage gear, a linkage rack and a limit slider, the limit slider is slidably set on the inner wall of the fixed shell, the linkage rack is fixedly set on the side of the limit slider away from the fixed shell, the linkage gear is set in the middle of the hinged rod, and the bottom of the linkage rack is in contact with the first unlocking column.

[0008] Preferably, a sliding groove is provided on the side wall of the movable shell, sliding grooves are provided on both sides of the sliding groove, return springs are provided in the two sliding grooves, two limit plates are provided at the ends of the two return springs, and the two limit plates are slidably provided in the two sliding grooves respectively.

[0009] Preferably, accommodating grooves are provided on both sides of the sliding groove.

[0010] Preferably, the emergency unlocking mechanism includes two unlocking springs, two spring columns, two unlocking rods, a connecting rod and an extrusion column. The two unlocking rods are arranged in two accommodating grooves, one end of the two spring columns is movably inserted in the middle of the two unlocking rods, and the two unlocking springs are respectively sleeved on the two spring columns. One end of the connecting rod is fixedly arranged on the side wall away from the fixed shell, and the extrusion column is arranged at the other end of the connecting rod, and the extrusion column is in contact with the second unlocking column.

[0011] Preferably, the side walls of the first hinge and the second hinge are respectively provided with corresponding padlock holes.

[0012] Preferably, two fixing holes are provided at the bottom of the fixing housing.

[0013] Preferably, the bottom outer side walls of the two unlocking levers are provided with inclined surfaces.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] (1) The present invention uses the squeezing column to contact the second unlocking column, and the second unlocking column drives the limit rod to release the limit on the pressure plate. At the same time, the operator pinches the two unlocking rods with one hand, inserts them into the sliding groove, and then lets go. The two unlocking rods are reset under the action of the unlocking spring, thereby contacting the two limit plates and sliding toward both sides, so that the pressure plate is unlocked. The overall operation is simple and convenient, and the setting of the emergency unlocking mechanism can be used in an emergency when the operator holding the key is not present. The operation is easy to operate and can effectively respond to emergencies, greatly reducing the probability of accidents in the high-voltage cabinet and improving the overall safety of the device.

[0016] (2) The present invention realizes double locking of the pressure plate by setting the interfering limit rod, the first unlocking column, the second unlocking column and the limit plate, and the unlocking steps of the double locking are more concise and simple to operate, thereby reducing the operating difficulty of the operator;

[0017] (3) The present invention drives the linkage gear to rotate by rotating the movable housing around the hinge rod, and the linkage gear drives the linkage rack and the limit slider to slide. The limit operation of unlocking the pressure plate can be achieved by opening the movable housing, which saves operation steps, reduces the difficulty of operation, and is convenient and quick. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0019] Figure 2 It is a schematic diagram of the internal cross-sectional structure of the electrical cabinet body of the present invention;

[0020] Figure 3 It is a schematic diagram of the structure of the matching relationship between the movable housing and the emergency unlocking mechanism of the present invention;

[0021] Figure 4 It is a schematic diagram of the positional relationship between the movable housing and the linkage mechanism of the present invention;

[0022] Figure 5 It is a schematic diagram of the linkage mechanism structure of the present invention.

[0023] In the figure: 1. electrical cabinet body; 2. movable shell; 21. limit plate; 22. reset spring; 3. first hinge; 4. emergency unlocking mechanism; 41. unlocking spring; 42. spring column; 43. unlocking rod; 44. connecting rod; 45. extrusion column; 5. limit block; 6. padlock hole; 7. limit rod; 8. linkage mechanism; 81. linkage gear; 82. linkage rack; 83. limit slider; 9. first unlocking column; 10. operating panel; 11. hinge rod; 12. fixing hole; 13. second hinge; 14. sliding groove; 15. second unlocking column; 16. pressure plate; 17. fixed shell; 18. receiving groove. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only 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.

[0025] See also Figure 1-5 An embodiment of the present invention is as follows: a padlock device for an operating hole of an earthing switch of an electrical cabinet comprises an electrical cabinet body 1, a fixed shell 17 is arranged on the side wall of the electrical cabinet body 1, a movable shell 2 is hingedly arranged on one side of the fixed shell 17, a hinge rod 11 is arranged at the hinged joint between the movable shell 2 and the fixed shell 17, and the hinge rod 11 is fixedly connected to the movable shell 2, an operating panel 10 is arranged on the inner side wall of the electrical cabinet so as to slide up and down, a pressing plate 16 is fixedly arranged on one side of the outer wall of the electrical cabinet, and the pressing plate 16 extends to the movable shell 2 The outside of the movable shell 2 will not hinder the opening of the movable shell 2. The operating panel 10 is located on one side of the inner wall of the electrical cabinet body 1, and a limit block 5 is fixedly provided. The inner wall of the electrical cabinet body 1 is respectively provided with a first unlocking column 9 and a second unlocking column 15, and a limit rod 7 is fixedly provided between the first unlocking column 9 and the second unlocking column 15. A linkage mechanism 8 is provided inside the movable shell 2, and an emergency unlocking mechanism 4 is movably abutted on the top of the movable shell 2. A first hinge 3 is provided on the side wall of the movable shell 2, and a second hinge 13 is provided on the side wall of the electrical cabinet body. First, under normal circumstances, the operator can unlock the door with his key, then open the movable shell 2 to drive the linkage mechanism 8 to work, the linkage mechanism 8 contacts the first unlocking column 9, the first unlocking column 9 drives the limit rod 7 and the second unlocking column 15 to move synchronously, and then the operator can press down the pressure plate 16 to operate. However, if an operation is performed in an emergency, the emergency unlocking mechanism 4 can be used, and the emergency unlocking mechanism 4 contacts the unlocking column to drive the limit rod 7 to release the limit, and the emergency unlocking mechanism 4 is used to make the two limit plates 21 contact toward both sides, and then the operator can control the pressure plate 16 to press down to operate the cabinet.

[0026] Specifically, the linkage mechanism 8 includes a linkage gear 81, a linkage rack 82 and a limit slider 83. The limit slider 83 is slidably arranged on the inner side wall of the fixed housing 17. The linkage rack 82 is fixedly arranged on the side of the limit slider 83 away from the fixed housing 17. The linkage gear is arranged in the middle of the hinge rod 11. The bottom of the linkage rack 82 is in contact with the first unlocking column 9. The movable housing 2 rotates around the hinge rod 11 to drive the linkage gear to rotate, and the linkage gear rotates to drive the linkage rack 82 and the limit slider 83 to slide. The limit operation of unlocking the pressure plate 16 can be realized by opening the movable housing 2, which saves operation steps, reduces the difficulty of operation, and is convenient and quick.

[0027] Specifically, the side wall of the movable housing 2 is provided with a sliding groove 14, and sliding grooves 14 are provided on both sides of the sliding groove 14. Reset springs 22 are provided in the two sliding grooves 14, and two limit plates 21 are provided at the ends of the two return springs 22. The two limit plates 21 are respectively slidably provided in the two sliding grooves 14. When the return spring 22 is in a natural state, the top of the limit plate 21 abuts against the bottom surface of the pressure plate 16, and the limit plate 21 slides toward both sides by abutting against the limit plate 21, so that the pressure plate 16 can slide in the sliding groove 14, which saves time in the case of emergency unlocking and prevents the occurrence of misoperation by unrelated personnel.

[0028] Specifically, accommodating grooves 18 are provided on both sides of the sliding groove 14 .

[0029] Specifically, the emergency unlocking mechanism 4 includes two unlocking springs 41, two spring columns 42, two unlocking rods 43, a connecting rod 44 and an extrusion column 45. The two unlocking rods 43 are abutted against each other in the two accommodating grooves 18. One end of the two spring columns 42 is movably inserted in the middle of the two unlocking rods 43. The two unlocking springs 41 are respectively sleeved on the two spring columns 42, and the unlocking springs 41 and the two spring columns 42 will not hinder the downward pressure of the pressure plate 16. One end of the connecting rod 44 is fixedly set on the side wall on the side away from the fixed shell 17. The extrusion column 45 is set at the other end of the connecting rod 44, and the extrusion column 45 is abutted against the second unlocking column 15. First, the squeezing column 45 contacts the second unlocking column 15, and the second unlocking column 15 drives the limiting rod 7 to release the limit on the pressure plate 16. At the same time, the operator pinches the two unlocking rods 43 with one hand, inserts them into the sliding groove 14 and then lets go. The two unlocking rods 43 are reset under the action of the unlocking spring 41, thereby contacting the two limiting plates 21 and sliding toward both sides respectively, so that the pressure plate 16 is unlocked. The overall operation is simple and convenient, and the setting of the emergency unlocking mechanism 4 can be used in an emergency when the operator holding the key is not present, and the operation is easy to get started, and it can effectively deal with emergencies, greatly reducing the probability of accidents in the high-voltage cabinet.

[0030] Specifically, the side walls of the first hinge 3 and the second hinge 13 are respectively provided with corresponding padlock holes 6 .

[0031] Specifically, two fixing holes 12 are provided at the bottom of the fixing housing 17 .

[0032] Specifically, the bottom outer side walls of the two unlocking rods 43 are provided with inclined surfaces.

[0033] Working principle: First, under normal circumstances, the operator can unlock the door with the key, and then open the movable shell 2. The movable shell 2 rotates around the hinge rod 11 to drive the linkage gear to rotate. The linkage gear rotates to drive the linkage rack 82 and the limit slider 83 to slide. The limit operation of unlocking the pressure plate 16 can be achieved by opening the movable shell 2. However, if an operation is performed in an emergency, the emergency unlocking mechanism 4 can be used. The squeezing column 45 contacts the second unlocking column 15, and the second unlocking column 15 drives the limit rod 7 to release the limit on the pressure plate 16. At the same time, the operator pinches the two unlocking rods 43 with one hand, inserts them into the sliding groove 14, and then lets go. The two unlocking rods 43 are reset under the action of the unlocking spring 41, thereby contacting the two limit plates 21 and sliding toward both sides respectively, so that the pressure plate 16 is unlocked; the overall operation is simple and convenient, and the setting of the emergency unlocking mechanism can be used in an emergency when the operator holding the key is not present, and the difficulty of operation is low, and it can effectively respond to emergencies, greatly reducing the probability of accidents in the high-voltage cabinet and improving the overall safety of the device.

[0034] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A padlock device for an operating hole of an earthing switch of an electrical cabinet, comprising an electrical cabinet body (1), a fixed shell (17) being arranged on a side wall of the electrical cabinet body (1), a movable shell (2) being hingedly arranged on one side of the fixed shell (17), a hinge rod (11) being arranged at a hinged position between the movable shell (2) and the fixed shell (17), and the hinge rod (11) being fixedly connected to the movable shell (2), an operating panel (10) being arranged on an inner side wall of the electrical cabinet for sliding up and down, a pressing plate (16) being fixedly arranged on one side of the operating panel (10) located on an outer wall of the electrical cabinet, and a limit block (5) being fixedly arranged on one side of the operating panel (10) located on an inner wall of the electrical cabinet body (1), characterized in that: The inner side walls of the electrical cabinet body (1) are respectively plugged with a first unlocking column (9) and a second unlocking column (15); a limit rod (7) is fixedly arranged between the first unlocking column (9) and the second unlocking column (15); a linkage mechanism (8) is arranged inside the movable shell (2); an emergency unlocking mechanism (4) is movably abutted on the upper side of the movable shell (2); a first hinge (3) is arranged on the side wall of the movable shell (2); and a second hinge (13) is arranged on the side wall of the electrical cabinet body.

2. The padlock device for the operating hole of the grounding switch of an electrical cabinet according to claim 1, characterized in that: The linkage mechanism (8) comprises a linkage gear (81), a linkage rack (82) and a limit slider (83); the limit slider (83) is slidably arranged on the inner wall of the fixed housing (17); the linkage rack (82) is fixedly arranged on the side of the limit slider (83) away from the fixed housing (17); the linkage gear is arranged in the middle of the hinge rod (11); and the bottom of the linkage rack (82) is in contact with the first unlocking column (9).

3. The padlock device for the operating hole of the grounding switch of an electrical cabinet according to claim 1, characterized in that: The side wall of the movable housing (2) is provided with a sliding groove (14), and sliding grooves (14) are provided on both sides of the sliding groove (14). Return springs (22) are provided in the two sliding grooves (14), and two limit plates (21) are provided at the ends of the two return springs (22). The two limit plates (21) are respectively slidably provided in the two sliding grooves (14).

4. The padlock device for the operating hole of the grounding switch of an electrical cabinet according to claim 3, characterized in that: Accommodation grooves (18) are provided on both sides of the sliding groove (14).

5. The padlock device for the operating hole of the grounding switch of an electrical cabinet according to claim 4, characterized in that: The emergency unlocking mechanism (4) comprises two unlocking springs (41), two spring columns (42), two unlocking rods (43), a connecting rod (44) and a pressing column (45); the two unlocking rods (43) are arranged in abutment with each other in two receiving grooves (18); one end of the two spring columns (42) is movably inserted in the middle of the two unlocking rods (43); the two unlocking springs (41) are respectively sleeved on the two spring columns (42); one end of the connecting rod (44) is fixedly arranged on the side wall on the side away from the fixed shell (17); the pressing column (45) is arranged on the other end of the connecting rod (44); and the pressing column (45) is in abutment with the second unlocking column (15).

6. The padlock device for the operating hole of the grounding switch of an electrical cabinet according to claim 1, characterized in that: The side walls of the first hinge (3) and the second hinge (13) are respectively provided with corresponding padlock holes (6).

7. The padlock device for the operating hole of the grounding switch of an electrical cabinet according to claim 1, characterized in that: The bottom of the fixed housing (17) is provided with two fixing holes (12).

8. The padlock device for the operating hole of the grounding switch of an electrical cabinet according to claim 5, characterized in that: The bottom outer side walls of the two unlocking rods (43) are provided with inclined surfaces.

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