Double-door linkage locking device of branch box

Abstract

The invention discloses a double-door linkage locking device of a branch box, and relates to the technical field of branch boxes. The refrigerator comprises a refrigerator body and a first door body installed on one side of the refrigerator body, a fixing frame is fixedly connected between the inner walls of the periphery of the refrigerator body, and one side of the fixing frame is rotationally connected with a second door body opened in the same direction as the first door body; one side of the second door body is provided with at least one avoidance hole for exposing a main circuit breaker in the box body, one side of the fixing frame is provided with an insertion hole, one side of the second door body is fixedly connected with a guide block, and an insertion rod matched with the insertion hole for use is slidably connected in the guide block. According to the invention, when the circuit is switched on and off, electric wires and electric parts in the box body can be prevented from being touched, the use safety is improved, dust entering the box body can be reduced, the electric shock condition caused by forgetting to cut off power during maintenance is avoided, the safety of workers and equipment is improved, the second door body can be prevented from being accidentally opened, and the safety of the second door body is improved. And the use safety is further improved.

Description

Technical Field

[0001] The invention belongs to the technical field of branch boxes, and in particular relates to a double-door linkage locking device for a branch box. Background Art

[0002] Branch boxes are important equipment in power distribution systems. They are mainly used for branch connections of cable lines and power distribution, ensuring efficient and safe transmission of power to different branches. They not only simplify cable wiring and reduce construction costs, but also improve power supply reliability and ease of maintenance. They are suitable for various scenarios such as urban power grids, industrial parks, and residential communities.

[0003] Most existing branch boxes are single-door. When the door is opened, the internal electrical components and various switches are exposed. When repairing or switching circuits, it is easy to touch the circuits, causing danger. Therefore, a double-door linkage locking device for the branch box is proposed. Summary of the Invention

[0004] The purpose of the present invention is to provide a double-door linkage locking device for a branch box, which can avoid touching the wires and electrical components in the box when the circuit is switched, thereby improving the safety of use, and at the same time reducing the entry of dust into the box. At the same time, during maintenance, it can avoid the occurrence of electric shock caused by forgetting to turn off the power, thereby improving the safety of staff and equipment, and preventing the second door from being accidentally opened, further improving the safety of use, and solving the existing technical problems.

[0005] To solve the above technical problems, the present invention is achieved through the following technical solutions: A double-door linkage locking device for a branch box comprises: a box body and a first door body mounted on one side of the box body; a fixing frame is fixedly connected between the four inner walls of the box body; a second door body is rotatably connected to one side of the fixing frame and opens in the same direction as the first door body; the double-door arrangement allows the first door body to be opened to switch the circuit on or off, thereby avoiding contact with wires and electrical components in the box body, improving safety in use, and reducing dust from entering the box body; At least one avoidance hole is provided on one side of the second door body for leaking out the main circuit breaker in the box, a socket is provided on one side of the fixing frame, a guide block is fixedly connected to one side of the second door body, a plug rod used in conjunction with the socket is slidably connected in the guide block, a driving member is provided on one side of the avoidance hole for driving the plug rod to move, the driving member is located on one side of the main circuit breaker in the box, and keeps the plug rod and the socket plugged in before the main circuit breaker is closed; A protection mechanism is provided at the bottom of the box body and is used to control the opening of the second door body.

[0006] As a further solution of the present invention, the driving member includes a guide sleeve fixed on one side of the second door body, a slide is slidably connected in the guide sleeve, a connecting rod is rotatably connected between the top of the slide and one end of the insertion rod, and the bottom of the slide is fixedly connected to a transversely arranged driving rod, which is located above the main circuit breaker operating handle and in contact with it. Only after the main circuit breaker is closed can the insertion rod move and then disengage from the socket, thereby improving safety of use, avoiding electric shock caused by forgetting to turn off the power, and improving the safety of staff and equipment.

[0007] As a further solution of the present invention, a fixed shaft is fixedly connected to one side of the second door body, and the fixed shaft is in contact with the connecting rod to support the connecting rod.

[0008] As a further solution of the present invention, a first spring is installed between the guide sleeve and the slide plate via a spring seat.

[0009] As a further solution of the present invention, a lock is installed on one side of the second door body, and the lock cooperates with the fixed frame to lock the second door body.

[0010] As a further solution of the present invention, a baffle is fixedly connected to one side of the second door body.

[0011] As a further solution of the present invention, a mounting shaft is fixedly connected to one side of the first door body, and the mounting shaft is rotatably connected to the box body.

[0012] As a further solution of the present invention, the protective mechanism includes two pins and a drive disk, the two pins slide through the fixed frame and the bottom of the box body and are located on one side of the second door body for blocking the second door body, a connecting plate is fixedly connected between the bottoms of the two pins, and a pressure rod is fixedly connected to one side of the connecting plate, the bottom of the box body is fixedly connected to two fixed plates, a driving block is provided between the two fixed plates, one side of the driving block is fixedly connected to a push rod, a second spring is installed between the push rod and the adjacent fixed plate through a spring seat, a driving groove that is obliquely arranged through it is provided on one side of the driving block, the pressure rod is slidably connected to the driving groove, one side of the driving block is fixedly connected to two guide rods, the guide rod is slidably connected to the adjacent fixed plate, the driving disk is fixed to the bottom of the mounting shaft, an arc-shaped groove is provided on one side of the driving disk for use with the push rod, one end of the push rod is rotatably connected to a roller, the roller contacts the driving disk, the setting of the pins makes it necessary to move the first door body to a special angle when opening the second door body so that it can be opened, thereby preventing the second door body from being accidentally opened, thereby further improving the safety of use.

[0013] As a further solution of the present invention, a protective shell is fixedly connected to the bottom of the box.

[0014] As a further solution of the present invention, a V-shaped positioning groove is provided on one side of the slide plate, and a positioning block used in conjunction with the positioning groove is fixedly connected to one side of the first door body.

[0015] The embodiments of the present invention have the following beneficial effects: In the present invention, the first door body and the second door body are used in coordination, so that when the circuit is switched on or off, the operation can be performed by opening the first door body, avoiding touching the wires and electrical components in the box body, improving the safety of use, and reducing the entry of dust into the box body.

[0016] In the present invention, the socket and the rod are used in coordination so that the rod can be moved and then separated from the socket only after the main circuit breaker is turned off, thereby improving the safety of use, avoiding the occurrence of electric shock caused by forgetting to turn off the power, and improving the safety of workers and equipment.

[0017] In the present invention, by setting the pin shaft, when opening the second door body, the first door body needs to be moved to a special angle so that it can be opened, preventing the second door body from being opened accidentally, and further improving the safety of use.

[0018] In the present invention, when the circuit is switched on and off, it is possible to avoid touching the wires and electrical components in the box, thereby improving the safety of use. At the same time, it is possible to reduce the entry of dust into the box. At the same time, during maintenance, it is possible to avoid the occurrence of electric shock caused by forgetting to turn off the power, thereby improving the safety of workers and equipment. It is also possible to prevent the second door from being accidentally opened, thereby further improving the safety of use.

[0019] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0021] Figure 1 This is a schematic diagram of a three-dimensional structure of a first viewing angle according to an embodiment of the present invention; Figure 2 This is a schematic diagram of a three-dimensional structure with a second viewing angle according to an embodiment of the present invention; Figure 3 An embodiment of the present invention Figure 2 A schematic diagram of the enlarged structure of point A; Figure 4 This is a structural schematic diagram of a fixing frame and a second door body according to an embodiment of the present invention; Figure 5 A schematic diagram of a partial structure of an embodiment of the present invention; Figure 6 An embodiment of the present invention Figure 5 A schematic diagram of the enlarged structure of point B; Figure 7 Schematic diagram of the protection mechanism structure according to an embodiment of the present invention.

[0022] In the figure: 1. Box body; 2. First door body; 3. Fixed frame; 4. Second door body; 5. Positioning block; 6. Protective shell; 7. Mounting shaft; 8. Drive plate; 9. Groove; 10. Avoidance hole; 11. Baffle; 12. Lock; 13. Protective mechanism; 14. Guide block; 15. Socket; 16. Insert rod; 17. Fixed shaft; 18. Connecting rod; 19. Guide sleeve; 20. Slide plate; 21. Positioning groove; 22. Drive rod; 23. First spring; 24. Pin; 25. Connecting plate; 26. Pressure rod; 27. Fixed plate; 28. Push rod; 29. Drive block; 30. Drive groove; 31. Guide rod; 32. Second spring; 33. Roller. DETAILED DESCRIPTION

[0023] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. 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 making any creative efforts shall fall within the scope of protection of the present invention.

[0024] In order to keep the following description of the embodiments of the present invention clear and concise, detailed descriptions of known functions and known components are omitted.

[0025] In one embodiment, see Figure 1-Figure 7 As shown, in this embodiment, a double-door linkage locking device for a branch box is provided, comprising: a box body 1 and a first door body 2 installed on one side of the box body 1, a fixing frame 3 is fixedly connected between the inner walls of the box body 1, and a second door body 4 that opens in the same direction as the first door body 2 is rotatably connected to one side of the fixing frame 3. The first door body 2 is an outer layer of protection, and the second door body 4 is an inner layer of protection, which is used to shield the internal wires and electrical components; At least one avoidance hole 10 is provided on one side of the second door body 4 for leaking out the main circuit breaker in the box body 1, and a socket 15 is provided on one side of the fixed frame 3. A guide block 14 is fixedly connected to one side of the second door body 4, and a plug rod 16 used in conjunction with the socket 15 is slidably connected in the guide block 14. A driving member is provided on one side of the avoidance hole 10 for driving the plug rod 16 to move. The driving member is located on one side of the main circuit breaker in the box body 1, and the plug rod 16 is kept connected with the socket 15 before the main circuit breaker is turned off. When repairing the circuit, the plug rod 16 can only be moved after the circuit is turned off, and then disengaged from the socket 15, thereby improving the safety of use, avoiding the occurrence of electric shock caused by forgetting to turn off the power, and improving the safety of staff and equipment; The protection mechanism 13 is arranged at the bottom of the box body 1 and is used to control the opening of the second door body 4.

[0026] In the present invention, the driving member includes a guide sleeve 19 fixed to one side of the second door body 4, and a slide plate 20 is slidably connected in the guide sleeve 19. A connecting rod 18 is rotatably connected between the top of the slide plate 20 and one end of the insertion rod 16. The bottom of the slide plate 20 is fixedly connected to a transversely arranged driving rod 22. The driving rod 22 is located above the main circuit breaker operating handle and contacts it. The driving rod 22 is pulled down. Since the driving rod 22 is set above the main circuit breaker operating handle, when the driving rod 22 is pulled down, the main circuit breaker needs to be closed, and then the driving rod 22 is lowered. The driving rod 22 drives the slide plate 20 to move downward, and the driving rod 22 drives the insertion rod 16 to move through the connecting rod 18.

[0027] In another embodiment: Figure 1-Figure 7 , a double-door linkage locking device of a branch box, a fixed shaft 17 is fixedly connected to one side of the second door body 4, the fixed shaft 17 is in contact with the connecting rod 18 for supporting the connecting rod 18, and the fixed shaft 17 plays the role of supporting the connecting rod 18 to form a lever.

[0028] In the present invention, a first spring 23 is installed between the guide sleeve 19 and the slide plate 20 via a spring seat. The first spring 23 can facilitate the reset of the slide plate 20.

[0029] In particular, a lock 12 is installed on one side of the second door body 4. The lock 12 cooperates with the fixed frame 3 to lock the second door body 4. The lock 12 is an existing structure and is used to lock the second door body 4 to prevent people without keys from opening it.

[0030] It should be noted that a baffle 11 is fixedly connected to one side of the second door body 4 , and the baffle 11 is used to shield components such as the insertion rod 16 .

[0031] In the present invention, a mounting shaft 7 is fixedly connected to one side of the first door body 2 , and the mounting shaft 7 is rotatably connected to the box body 1 .

[0032] In particular, the protective mechanism 13 includes two pins 24 and a drive disk 8. The two pins 24 slide through the fixed frame 3 and the bottom of the box body 1 and are located on one side of the second door body 4 for shielding the second door body 4. A connecting plate 25 is fixedly connected between the bottoms of the two pins 24. A pressure rod 26 is fixedly connected to one side of the connecting plate 25. Two fixed plates 27 are fixedly connected to the bottom of the box body 1. A driving block 29 is provided between the two fixed plates 27. A push rod 28 is fixedly connected to one side of the driving block 29. A second spring 32 is installed between the push rod 28 and the adjacent fixed plate 27 through a spring seat. The second spring 32 is used to support the push rod 28 to facilitate its reset. A driving groove 30 is provided on one side of the driving block 29. The pressure rod 26 is slidably connected to the driving groove 30. One side of the driving block 29 There are two guide rods 31 fixedly connected, which are slidably connected to the adjacent fixed plates 27. The driving disk 8 is fixed to the bottom of the mounting shaft 7. An arc-shaped groove 9 is provided on one side of the driving disk 8 for use with the push rod 28. When the first door body 2 rotates, it drives the mounting shaft 7 and the driving disk 8 at its bottom to rotate. The groove 9 on the driving disk 8 moves to one side of the push rod 28. The push rod 28 drives the driving block 29 to move under the action of the second spring 32. The driving block 29 drives the pressure rod 26 to move downward through the inclined driving groove 30. The pressure rod 26 drives the connecting plate 25 and the pin shaft 24 to move downward, and then disengages from the limit of the second door body 4 to prevent the second door body 4 from being accidentally opened, further improving the safety of use. One end of the push rod 28 is rotatably connected to a roller 33, and the roller 33 contacts the driving disk 8.

[0033] It should be noted that a protective shell 6 is fixedly connected to the bottom of the box body 1 , and the protective shell 6 serves to shield the protective mechanism 13 .

[0034] In the present invention, a V-shaped positioning groove 21 is provided on one side of the slide plate 20 , and a positioning block 5 for use with the positioning groove 21 is fixedly connected to one side of the first door body 2 .

[0035] The use process and working principle of the technical solution of the present invention are as follows: When in use, the first door body 2 is the outer layer of protection, and the second door body 4 is the inner layer of protection, which is used to shield the internal wires and electrical components, wherein the main circuit breaker and its operating handle leak out through the avoidance hole 10. When the circuit is switched on or off, the first door body 2 can be opened to operate, avoiding touching the wires and electrical components in the box body 1, improving the safety of use, and reducing the dust from entering the box body 1. When the circuit or electrical components inside the box body 1 need to be inspected, the second door body 4 needs to be opened. In addition to opening the lock 12 on the second door body 4, the drive rod 22 needs to be pulled down. Since the drive rod 22 is set above the main circuit breaker operating handle, when the drive rod 22 is pulled down, the main circuit breaker needs to be closed, and then the drive rod 22 is lowered. The drive rod 22 drives the slide plate 20 to move downward. The driving rod 22 drives the insertion rod 16 to move through the connecting rod 18, and then disengages from the socket 15, thereby improving the safety of use, avoiding the occurrence of electric shock caused by forgetting to turn off the power, and improving the safety of staff and equipment. Before opening the second door body 4, the first door body 2 needs to be rotated to a certain angle. When the first door body 2 rotates, it drives the mounting shaft 7 and the driving disk 8 at its bottom to rotate. When the groove 9 on the driving disk 8 moves to one side of the push rod 28, the push rod 28 drives the driving block 29 to move under the action of the second spring 32. The driving block 29 drives the pressure rod 26 to move downward through the inclined driving groove 30, and the pressure rod 26 drives the connecting plate 25 and the pin shaft 24 to move downward, thereby disengaging from the limit of the second door body 4, allowing it to be opened, preventing the second door body 4 from being accidentally opened, and further improving the safety of use.

[0036] It should be noted that, in the description of this specification, descriptions such as "first", "second", etc. are only used to distinguish various features and have no actual order or directional meaning, and this application is not limited to this.

[0037] Throughout this specification, references to terms such as "one embodiment," "example," or "specific example" indicate that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0038] The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the present invention to the specific embodiments described. Obviously, many modifications and variations are possible based on the content of this specification. These embodiments are selected and described in detail in this specification to better explain the principles and practical applications of the present invention, thereby enabling those skilled in the art to better understand and utilize the present invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A double-door linkage locking device for a branch box, characterized in that: include: A box body (1) and a first door body (2) installed on one side of the box body (1); a fixed frame (3) is fixedly connected between the inner walls of the four sides of the box body (1); and a second door body (4) that opens in the same direction as the first door body (2) is rotatably connected to one side of the fixed frame (3); At least one avoidance hole (10) is provided on one side of the second door body (4) for leaking out the main circuit breaker in the box body (1); a socket (15) is provided on one side of the fixed frame (3); a guide block (14) is fixedly connected to one side of the second door body (4); a plug rod (16) used in conjunction with the socket (15) is slidably connected in the guide block (14); a driving member is provided on one side of the avoidance hole (10) for driving the plug rod (16) to move; the driving member is located on one side of the main circuit breaker in the box body (1) and keeps the plug rod (16) plugged into the socket (15) before the main circuit breaker is closed; A protection mechanism (13) is provided at the bottom of the box body (1) and is used to control the opening of the second door body (4).

2. A double-door linkage locking device for a branch box according to claim 1, characterized in that: The driving member comprises a guide sleeve (19) fixed to one side of the second door body (4), a slide plate (20) is slidably connected in the guide sleeve (19), a connecting rod (18) is rotatably connected between the top of the slide plate (20) and one end of the insertion rod (16), and a transversely arranged driving rod (22) is fixedly connected to the bottom of the slide plate (20), and the driving rod (22) is located above the main circuit breaker operating handle and in contact with it.

3. A double-door linkage locking device for a branch box according to claim 2, characterized in that: A fixed shaft (17) is fixedly connected to one side of the second door body (4), and the fixed shaft (17) is in contact with the connecting rod (18) to support the connecting rod (18).

4. A double-door linkage locking device for a branch box according to claim 2, characterized in that: A first spring (23) is installed between the guide sleeve (19) and the slide plate (20) via a spring seat.

5. A double-door linkage locking device for a branch box according to any one of claims 1 to 4, characterized in that: A lock (12) is installed on one side of the second door body (4), and the lock (12) cooperates with the fixed frame (3) to lock the second door body (4).

6. A double-door linkage locking device for a branch box according to claim 5, characterized in that: A baffle (11) is fixedly connected to one side of the second door body (4).

7. A double-door linkage locking device for a branch box according to claim 1, characterized in that: A mounting shaft (7) is fixedly connected to one side of the first door body (2), and the mounting shaft (7) is rotatably connected to the box body (1).

8. A double-door linkage locking device for a branch box according to claim 7, characterized in that: The protection mechanism (13) includes two pins (24) and a drive disk (8). The two pins (24) slide through the fixed frame (3) and the bottom of the box body (1) and are located on one side of the second door body (4) for shielding the second door body (4). A connecting plate (25) is fixedly connected between the bottoms of the two pins (24). A pressure rod (26) is fixedly connected to one side of the connecting plate (25). The bottom of the box body (1) is fixedly connected to two fixed plates (27). A driving block (29) is provided between the two fixed plates (27). A push rod (28) is fixedly connected to one side of the driving block (29). The push rod (28) is connected to the adjacent fixed plate (2 A second spring (32) is installed between the mounting shaft (7) and the drive block (29) through a spring seat, a driving groove (30) is provided on one side of the driving block (29), the pressure rod (26) is slidably connected to the driving groove (30), two guide rods (31) are fixedly connected to one side of the driving block (29), and the guide rods (31) are slidably connected to the adjacent fixed plates (27), the driving disk (8) is fixed to the bottom of the mounting shaft (7), an arc-shaped groove (9) is provided on one side of the driving disk (8) for use with the push rod (28), and one end of the push rod (28) is rotatably connected to a roller (33), and the roller (33) is in contact with the driving disk (8).

9. A double-door linkage locking device for a branch box according to claim 8, characterized in that: A protective shell (6) is fixedly connected to the bottom of the box body (1).

10. A double-door linkage locking device for a branch box according to claim 2, characterized in that: A V-shaped positioning groove (21) is provided on one side of the slide plate (20), and a positioning block (5) used in conjunction with the positioning groove (21) is fixedly connected to one side of the first door body (2).

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