Electricity metering cabinet door lock device

Abstract

The application relates to the technical field of power metering cabinet auxiliary equipment, and relates to a power metering cabinet door lock device which comprises a door body, an outer door frame, an outer blocking door and a pull ring handle. The application has a reasonable and compact structure and is convenient to use. The outer blocking door provided with a rotating tongue lock and the pull ring handle hidden in the square tube can realize double protection, prevent irrelevant personnel from misoperation, and greatly improve the anti-theft performance of the door lock. In the use process, the opening and locking operation of the rotating tongue lock is simple, the outer blocking plate can be reliably locked and easily opened through a special key, the magnet can directly aim at the handle telescopic hole to suck out the pull ring handle, the door body is opened when the pull ring handle is in the vertical state, the door body is locked on the door frame by the locking tongue when the pull ring handle is in the horizontal state, and the pull ring handle is automatically retracted into the square tube after the hand is released. Therefore, the door body opening and locking operation is simple, time-saving and labor-saving.

Description

Technical Field

[0001] This invention relates to the field of auxiliary equipment technology for power metering cabinets, specifically a door lock device for power metering cabinets. Background Technology

[0002] Currently, the door lock device used in the power metering cabinet has the door handle located inside the lock box, with an outer baffle hinged to the outer end of the lock box. The inner side of the outer baffle is locked to the lock box by a locking pin. To prevent accidental operation, there is no opening device on the outside of the outer baffle. Therefore, when opening the outer baffle, it is necessary to move the magnet up and down to attract the locking pin and move it together to open the outer baffle.

[0003] Therefore, the door lock devices used in existing power metering cabinets have the following shortcomings in actual use: the lock pin position cannot be seen from the outside of the outer panel, and it is time-consuming and laborious to open the outer panel by repeatedly trying to move the magnet; there have been cases where the outer panel is not securely closed, and children playing accidentally open it and enter the power metering cabinet. Summary of the Invention

[0004] This invention provides a door lock device for an electricity metering cabinet, which overcomes the shortcomings of the prior art. It can effectively solve the problems of existing electricity metering cabinet door locks, such as the inability to see the lock pin position from the outside of the outer baffle, the need to repeatedly try to open the outer baffle by moving the magnet, which is time-consuming and laborious; and the problem that the outer baffle does not close securely during use, allowing children to accidentally open it and enter the electricity metering cabinet.

[0005] The technical solution of this invention is achieved through the following measures: A door lock device for an electricity metering cabinet includes a door body, an outer door frame, an outer stop door, and a pull ring handle. An outer door frame is installed on the front right side of the door body. An outer stop door is hinged to the inner side of the upper end of the outer door frame. A rotary latch is provided in the middle of the lower end of the outer stop door. A rectangular lock hole is provided on the door body corresponding to the rotary latch lock position. A rectangular handle extension hole is provided on the door body corresponding to the middle position of the outer door frame. A rectangular tube is installed on the rear side of the door body corresponding to the handle extension hole position. A rear baffle is installed at the rear end of the rectangular tube. A handle mounting hole is provided in the middle of the rear baffle position. A T-shaped sleeve is provided on the rear side of the rear baffle. From the middle to the outer rear of the T-shaped sleeve, a latch and a hexagonal nut are installed sequentially on the right side of the door. A support plate is provided behind the T-shaped sleeve. The rear end of the pull ring handle passes through the handle telescopic hole, the inner side of the rectangular tube, the handle mounting hole, and the inner side of the T-shaped sleeve sequentially from front to back, and is fixedly installed together with the middle of the front side of the support plate. The front end of the pull ring handle is located on the inner rear side of the rectangular tube and is ferromagnetic. A compression spring is provided on the outer side of the pull ring handle corresponding to the position between the support plate and the T-shaped sleeve. Pins are fixedly installed on the front sides of both ends of the support plate. A through hole is provided on the latch corresponding to each pin position.

[0006] The following are further optimizations and / or improvements to the above-mentioned technical solution:

[0007] The above may also include a first guide sleeve and a second guide sleeve. The rear baffle is provided with an upper arc groove and a lower arc groove that are through the front and rear and have a central angle of 90°. The upper arc groove and the lower arc groove are both located on a circle O with the hole distance AB of the two dial holes as the diameter. The front side of the latch corresponding to the two dial hole positions is provided with a first guide sleeve and a second guide sleeve respectively. The front end of the first guide sleeve is located in the upper arc groove, and the front end of the second guide sleeve is located in the lower arc groove.

[0008] The above may also include a left slide rail and a right slide rail. The left and right outer sides of the support plate are respectively fitted with a left slide rail and a right slide rail with opposite openings and fixed together with the front end corresponding to the locking tongue.

[0009] The above may also include indicator lights, with a through-hole light hole in the upper left corner of the outer door frame, and an indicator light inside the light hole.

[0010] The aforementioned pull ring handle includes a rectangular pull ring and a pull rod. The rear center of the rectangular pull ring is fixedly installed together with the front end of the pull rod. The rectangular pull ring can be a ferromagnetic metal pull ring.

[0011] Each of the aforementioned pins has a frustum-shaped tip that is smaller at the front and larger at the back.

[0012] This invention features a reasonable and compact structure, and is easy to use. It provides dual protection through an outer gate with a rotary latch and a pull ring handle hidden within a rectangular tube, preventing accidental operation by unauthorized personnel and significantly improving the anti-theft performance of the door lock. During use, the rotary latch is simple to open and lock. A special key allows the outer gate to be reliably locked and easily opened. The magnet can be directly aligned with the handle's telescopic hole to pull out the pull ring handle. When the pull ring handle is in a vertical position, the door will open; when it is in a horizontal position, the door is locked to the door frame by the latch. Releasing the handle will automatically retract the pull ring handle back into the rectangular tube. Therefore, this door lock device allows for simple and quick locking of the door to the door frame, as well as accurate and rapid opening of the door, saving time and effort and effectively improving the efficiency of maintenance personnel. Attached Figure Description

[0013] Appendix Figure 1 This is a top sectional view of the preferred embodiment of the present invention.

[0014] Appendix Figure 2 For the appendix Figure 1 A schematic diagram of the main structure.

[0015] Appendix Figure 3 For the appendix Figure 1 A schematic diagram of the rear view structure.

[0016] Appendix Figure 4 For the appendix Figure 1 A schematic diagram of the three-dimensional structure.

[0017] Appendix Figure 5 This is a schematic diagram of the usage state of the preferred embodiment of the present invention. Figure 1 .

[0018] Appendix Figure 6 This is a schematic diagram of the usage state of the preferred embodiment of the present invention. Figure 2 .

[0019] Appendix Figure 7 This is a schematic diagram of the usage state of the preferred embodiment of the present invention. Figure 3 .

[0020] The codes in the attached diagram are as follows: 1 is the door body, 2 is the outer door frame, 3 is the outer door stop, 4 is the rotary latch, 5 is the rectangular lock hole, 6 is the handle telescopic hole, 7 is the rectangular tube, 8 is the rear baffle, 9 is the T-shaped sleeve, 10 is the latch, 11 is the hexagonal nut, 12 is the support plate, 13 is the compression spring, 14 is the pin, 15 is the pry hole, 16 is the first guide sleeve, 17 is the second guide sleeve, 18 is the upper arc groove, 19 is the lower arc groove, 20 is the left slide rail, 21 is the right slide rail, 22 is the indicator light, 23 is the rectangular pull ring, and 24 is the pull rod. Detailed Implementation

[0021] The present invention is not limited to the following embodiments, and the specific implementation can be determined according to the technical solution of the present invention and the actual situation.

[0022] In this invention, for ease of description, the description of the relative positions of the components is based on the appendix to the specification. Figure 1 The layout is described using a diagrammatic method, such as front, back, top, bottom, left, right, etc. The positional relationships are determined based on the layout direction of the attached diagram in the instruction manual.

[0023] The present invention will be further described below with reference to embodiments and accompanying drawings:

[0024] Example 1: As shown in the attached document Figure 1 , 2As shown in Figures 3, 4, 5, 6, and 7, the door lock device of the power metering cabinet includes a door body 1, an outer door frame 2, an outer stop door 3, and a pull ring handle. The outer door frame 2 is installed on the front right side of the door body 1. The outer stop door 3 is hinged to the inner side of the upper end of the outer door frame 2. A rotary latch 4 is provided in the middle of the lower end of the outer stop door 3. A rectangular lock hole 5, which runs through the front and back, is provided on the door body 1 corresponding to the position of the rotary latch 4. A rectangular handle telescopic hole 6, which runs through the front and back, is provided on the door body 1 corresponding to the middle position of the outer door frame 2. A rectangular tube 7 is installed on the rear side of the door body 1 corresponding to the position of the handle telescopic hole 6. A rear baffle 8 is installed at the rear end of the rectangular tube 7. A handle mounting hole, which runs through the front and back, is provided in the middle of the rear baffle 8. A handle mounting hole is provided on the rear side of the rear baffle 8 corresponding to the position of the handle mounting hole. T-shaped sleeve 9, with a locking tongue 10 and a hexagonal nut 11 installed sequentially from the middle to the rear outer side of the T-shaped sleeve 9, with the right end located on the right side of the door body 1; a support plate 12 is provided behind the T-shaped sleeve 9, and the rear end of the pull ring handle passes sequentially from front to back through the handle telescopic hole 6, the inner side of the rectangular tube 7, the handle mounting hole and the inner side of the T-shaped sleeve 9, and is fixedly installed together with the middle front side of the support plate 12. The front end of the pull ring handle is located on the inner rear side of the rectangular tube 7 and is ferromagnetic. A compression spring 13 is provided on the outer side of the pull ring handle corresponding to the position between the support plate 12 and the T-shaped sleeve 9; pins 14 are fixedly installed on the front sides of both the left and right ends of the support plate 12, and a through hole 15 is provided on the locking tongue 10 corresponding to the position of each pin 14.

[0025] During use, when it is necessary to open door 1: first rotate the rotary latch 4 to align its latch with the rectangular lock hole 5, and then open the outer door 3; use a magnet to pull the front end of the pull ring handle out through the handle telescopic hole 6 (at this time, the pull ring handle is in a horizontal state), hold the pull ring handle and pull the support plate 12 forward so that the pin 14 is inserted into the corresponding hole 15 on the latch 10, and then rotate the pull ring handle 90° to rotate the latch 10 to a vertical state (at this time, the pull ring handle is in a vertical state), and then the door 1 can be opened; when it is necessary to close door 1: hold the pull ring handle and rotate it 90° in the opposite direction to make the pull ring handle in a horizontal state (the latch 10 is in a horizontal state), and then the right end of the latch 10 can be used to lock the door frame of the power metering cabinet. After releasing the pull ring handle, the pull ring handle will automatically retract into the rectangular tube 7 under the action of the compression spring 13, and then the outer door 3 can be locked by the rotary latch 4. Depending on the requirements, the door body 1, outer door frame 2, rectangular tube 7, and rear baffle 8 can be installed together by welding or bonding. The outer door frame 2 can also be installed on the door body 1 by pre-installing studs and threaded fasteners. To facilitate the rotation of the latch 10, a certain gap can be reserved between the hexagonal nut 11 and the latch 10. The rotary latch lock 4 is a pin tumbler lock with a latch 10 in the prior art. The key of the rotary latch lock 4 can be a special key to prevent unauthorized personnel from operating it by mistake. To prevent the pull ring handle from being directly removed from the rectangular tube 7 by hand and from rotating inside the rectangular tube 7, the dimensions of the handle telescopic hole 6 and the rectangular tube 7 are matched with the dimensions of the pull ring handle.

[0026] This invention features a reasonable and compact structure, and is easy to use. It provides dual protection through an outer door 3 with a rotary latch 4 and a pull ring handle hidden within a rectangular tube 7, preventing accidental operation by unauthorized personnel and significantly improving the anti-theft performance of the door lock. During use, the rotary latch 4 is simple to open and lock. A special key allows the outer door 3 to be reliably locked and easily opened. The magnet can be directly aligned with the handle's telescopic hole 6 to pull out the pull ring handle. When the pull ring handle is in a vertical position, the door 1 will be opened; when the pull ring handle is in a horizontal position, the door 1 is locked to the door frame by the latch 10. After releasing the handle, the pull ring handle will automatically retract into the rectangular tube 7. Therefore, this door lock device can easily and quickly lock the door 1 to the door frame, and accurately and quickly open the door 1, saving time and effort, and effectively improving the efficiency of maintenance personnel's repair work.

[0027] The above-mentioned power metering cabinet door lock device can be further optimized and / or improved according to actual needs:

[0028] Example 2: As shown in the attached document Figure 1 As shown, it also includes a first guide sleeve 16 and a second guide sleeve 17. The rear baffle 8 is provided with an upper arc groove 18 and a lower arc groove 19 that are through the front and rear and have a central angle of 90°. The upper arc groove 18 and the lower arc groove 19 are both located on a circle O with the hole distance AB of the two dial holes 15 as the diameter. The front side of the latch 10 corresponding to the position of the two dial holes 15 is provided with a first guide sleeve 16 and a second guide sleeve 17 respectively. The front end of the first guide sleeve 16 is located in the upper arc groove 18, and the front end of the second guide sleeve 17 is located in the lower arc groove 19.

[0029] With this configuration, the first guide sleeve 16 and the second guide sleeve 17 can only slide along the inner sides of the upper arc groove 18 and the lower arc groove 19. Thus, when the latch 10 is rotated by the pin 14, it can only rotate 90° counterclockwise. This allows for a direct visual determination of the latch 10's position: when the latch 10 is in the vertical position, the door 1 is opened, and the pull ring handle automatically remains vertical. When the pull ring handle is released, its front end is blocked by the door 1, preventing the door 1 from being closed by wind. When the latch 10 is in the horizontal position, the door 1 is locked to the door frame of the power metering cabinet. When the pull ring handle is released, its front end automatically retracts into the rectangular tube 7 and remains horizontal, facilitating easy removal next time. To limit the pull ring handle's travel and prevent interference with the normal rotation of the latch 10, the front end of the pin 14 should be positioned precisely within the first guide sleeve 16 and the second guide sleeve 17 after the spring 13 is fully compressed.

[0030] Example 3: As shown in the attached document Figure 1 , 3As shown in Figures 4, 5, and 7, the system also includes a left sliding guide rail 20 and a right sliding guide rail 21. The left and right outer sides of the support plate 12 are respectively provided with opposite openings and their front ends are fixedly installed together with the corresponding positions of the latch 10. During use, the left and right sliding guide rails 20 and 21 guide the support plate 12 during movement, ensuring that the two pins 14 can be inserted more accurately into the corresponding holes 15. This also allows for a further match between the size of the pins 14 and the size of the holes 15, preventing the pins 14 from slipping out during the rotation of the latch 10.

[0031] Example 4: As shown in the attached document Figure 2 , 3 As shown in Figures 4, 5, 6, and 7, an indicator light 22 is also included. A through-hole light hole is located at the upper left corner of the outer door frame 2, and the indicator light 22 is installed inside the hole. With this design, when the power metering cabinet leaks electricity, the indicator light 22 will illuminate when the door 1 is energized. Operators can easily identify whether the door 1 is energized through the indicator light 22, thus protecting their personal safety. As required, the metal fixing nut on the indicator light 22 is directly connected to the door 1.

[0032] Example 5: As attached Figure 1 , 4 As shown in Figures 5, 6, and 7, the pull ring handle includes a rectangular pull ring 23 and a pull rod 24. The rear center of the rectangular pull ring 23 is fixedly installed together with the front end of the pull rod 24. The rectangular pull ring 23 is a ferromagnetic metal pull ring. With this design, the rectangular pull ring 23 is easier for the operator to grip, and the separate design of the rectangular pull ring 23 and the pull rod 24 can save on processing costs.

[0033] Example 6: As attached Figure 1 , 4 As shown, the front end of each pin 14 is a frustoconical shape, smaller at the front and larger at the back. This design makes it easier for the pin 14 to be inserted into the corresponding hole 15.

[0034] The above technical features constitute the embodiments of the present invention, which have strong adaptability and implementation effect. Unnecessary technical features can be added or removed according to actual needs to meet the needs of different situations.

Claims

1. A door lock device for an electricity metering cabinet, characterized in that... The system includes a door body, an outer door frame, an outer stop, and a pull ring handle. The outer door frame is installed on the front right side of the door body. The outer stop is hinged to the inner upper part of the outer door frame. A rotary latch is located in the middle of the lower end of the outer stop. A rectangular lock hole, running through the door body, corresponds to the position of the rotary latch. A rectangular handle extension hole, running through the door body, corresponds to the middle position of the outer door frame. A rectangular tube is installed on the rear side of the door body corresponding to the handle extension hole. A rear baffle is installed at the rear end of the rectangular tube. A handle mounting hole, running through the door body, is located in the middle of the rear baffle. A T-shaped sleeve is located on the rear side of the rear baffle corresponding to the handle mounting hole. A latch and a hexagonal nut, with the right end located on the right side of the door body, are sequentially installed from the middle to the outer rear of the T-shaped sleeve. A support plate is located behind the T-shaped sleeve. The rear end of the pull ring handle passes through the handle extension hole, the inner side of the rectangular tube, the handle mounting hole, and the inner side of the T-shaped sleeve, and is then fixedly installed to the middle of the front side of the support plate. The front end of the pull ring handle is located on the inner rear side of the rectangular tube and is ferromagnetic. A compression spring is provided on the outside of the pull ring handle corresponding to the position between the support plate and the T-shaped sleeve; pins are fixedly installed on the front sides of both ends of the support plate, and a through hole is provided on the latch corresponding to each pin position. It also includes a first guide sleeve and a second guide sleeve. The rear baffle is provided with an upper arc groove and a lower arc groove that are through to the front and back and have a central angle of 90°. The upper arc groove and the lower arc groove are both located on a circle O with the hole distance AB of the two through holes as the diameter; a first guide sleeve and a second guide sleeve are respectively provided on the front side of the latch corresponding to the two through hole positions. The front end of the first guide sleeve is located in the upper arc groove, and the front end of the second guide sleeve is located in the lower arc groove. It also includes a left slide rail and a right slide rail. The left and right outer sides of the support plate are respectively provided with left slide rails and right slide rails with opposite openings and their front ends fixedly installed together with the corresponding positions of the latch. After the compression spring is fully compressed, the front end of the pin is exactly inside the first guide sleeve and the second guide sleeve.

2. The power metering cabinet door lock device according to claim 1, characterized in that... It also includes indicator lights. The upper left corner of the outer door frame has a through-hole with indicator lights inside.

3. The power metering cabinet door lock device according to claim 1 or 2, characterized in that... The pull ring handle includes a rectangular pull ring and a pull rod. The rear center of the rectangular pull ring is fixedly installed together with the front end of the pull rod. The rectangular pull ring is a ferromagnetic metal pull ring.

4. The power metering cabinet door lock device according to claim 1 or 2, characterized in that... Each pin has a truncated cone shape at the front, which is smaller at the front and larger at the back.

5. The power metering cabinet door lock device according to claim 3, characterized in that... Each pin has a truncated cone shape at the front, which is smaller at the front and larger at the back.

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