Box-type substation with protective door

Abstract

The utility model relates to the technical field of transformer substations, and discloses a box-type transformer substation with a protective door, which comprises a box body, the box body is provided with a control switch for controlling the on-off of equipment, the box body is rotatably connected with a box door, the box body is rotatably connected with the protective door, the protective door is provided with an electromagnetic lock, and the electromagnetic lock is electrically connected with the equipment in the box body. The protection door and the box door are rotationally connected to the box body, so that after people open the box door, the protection door can prevent people from entering the box body, the electromagnetic lock is arranged on the protection door, and the electromagnetic lock is electrically connected with the equipment in the box body, so that the equipment in the box body can be prevented from entering the box body. The electromagnetic lock can be opened only when the equipment is powered off, so that maintenance personnel are difficult to directly enter the box body under the condition that the equipment is not powered off, the operation risk of the maintenance personnel is reduced, and the condition that part of the maintenance personnel forget to be powered off is avoided.

Description

Technical Field

[0001] The present application relates to the technical field of substations, and in particular to a box-type substation with a protective door. Background Art

[0002] A box-type substation is a prefabricated compact distribution equipment that integrates high-voltage switchgear, distribution transformers and low-voltage distribution devices. It is widely used in many fields such as urban power supply, small and medium-sized enterprises, and temporary power supply.

[0003] In the related art, a box-type substation includes a box body, a receiving slot is provided on the box body, a box door is rotatably connected to the box body, the box door can seal the receiving slot, and a switch for controlling power off of the equipment is provided on the box body.

[0004] When equipment inside a box-type substation is damaged, maintenance personnel need to open the box door. However, the high-voltage equipment inside is still energized, so they must first press the switch to disconnect the internal high-voltage equipment. However, maintenance personnel may forget to press the switch, leaving the internal high-voltage equipment energized, which poses a certain risk when entering the box for maintenance. Utility Model Content

[0005] In order to improve the problem that maintenance personnel forget to press the switch, the present application provides a box-type substation with a protective door.

[0006] This application provides a box-type substation with a protective door, which adopts the following technical solutions:

[0007] A box-type substation with a protective door includes a box body, a control switch for controlling the on and off of equipment is provided on the box body, a box door is rotatably connected to the box body, a protective door is rotatably connected to the box body, and an electromagnetic lock is provided on the protective door. The electromagnetic lock is electrically connected to the equipment inside the box body. When the internal equipment is not powered off, the electromagnetic lock locks the protective door.

[0008] By adopting the above technical solution, the protective door and the box door are connected by rotation on the box body, so that after people open the box door, the protective door can prevent people from entering the box. In addition, an electromagnetic lock is provided on the protective door, and the electromagnetic lock is electrically connected to the equipment inside the box body, so that the electromagnetic lock can only be opened when the power to the equipment is cut off, making it difficult for maintenance personnel to directly enter the box when the power to the equipment is not cut off, reducing the operation risk of maintenance personnel, and avoiding the situation where some maintenance personnel forget to cut off the power.

[0009] Optionally, a travel switch is provided on the protective door, and when the protective door is opened, the travel switch controls the internal equipment to cut off power.

[0010] By adopting the above technical solution, a travel switch is provided on the protective door, so that when the protective door is opened, the travel switch can directly control the power off of the equipment. When a person forcibly opens the electromagnetic lock, the equipment can also be powered off, so that people will not be in danger of accidental electric shock, further improving the safety of the box-type substation.

[0011] Optionally, a protective cover is rotatably connected to the protective door, and the electromagnetic lock is located inside the protective cover.

[0012] By adopting the above technical solution, the protective cover is rotatably connected to the protective door, and the electromagnetic lock is arranged in the protective cover, so the protective cover can protect the electromagnetic lock to prevent people or animals from accidentally touching or damaging the electromagnetic lock.

[0013] Optionally, the protective cover is provided with a card strip, the card strip is provided with a card block, the protective door is provided with a card slot for inserting the card strip and the card block, and the protective door is slidably connected to a limit strip, and the limit strip is used to limit the movement of the card block.

[0014] By adopting the above technical solution, the card strip and the card block are inserted into the card slot, and then people slide the limit strip so that the limit strip can cover the card slot, so that the limit strip limits the movement of the card block, thereby preventing the card block from being removed from the card slot, and allowing the protective cover to stably protect the electromagnetic lock.

[0015] Optionally, a locking hole is opened on the surface of the limit bar, and the locking hole is for the locking bar and the locking block to pass through. When the locking hole is not aligned with the locking slot, the limit bar restricts the movement of the locking block.

[0016] By adopting the above technical solution, people slide the limit bar to align the card hole and the card slot, so that the card strip and the card block can be detached from the card slot and the card hole, so that the limit bar does not restrict the card strip; when the card hole and the card slot are not aligned, the limit bar blocks part of the card slot, and the card hole is not in the sliding path of the card block, making it difficult for the card strip to detach from the protective door, so the card strip is fixed on the protective door, so that the protective cover and the protective door are fixed to each other.

[0017] Optionally, a first magnet is provided on the limiting bar, and a second magnet is provided on the protective door. When the first magnet attracts the second magnet, the card hole is not aligned with the card slot.

[0018] By adopting the above technical solution, the first magnet attracts the second magnet to fix the limit bar on the protective door, preventing the limit bar from shaking on the protective door, thereby causing the card hole and the card slot to be misaligned, further strengthening the restriction on the card bar, and allowing the protective cover to be stably located on the protective door.

[0019] Optionally, a fixing hole is provided on the surface of the protective cover, an elastic piece is provided on the limit bar, a fixing block for inserting into the fixing hole is provided on the elastic piece, and the elastic piece drives the fixing block to be inserted into the fixing hole. When the fixing block is inserted into the fixing hole, the protective cover does not block the electromagnetic lock.

[0020] By adopting the above technical solution, the elastic member drives the fixing block to move, so that the fixing block is inserted into the fixing hole. The hole wall of the fixing hole restricts the fixing block, so that the protective cover can be fixed, so that people do not need to manually support the protective cover when opening it, thereby allowing people to open the electromagnetic lock more conveniently.

[0021] Optionally, a guide bar is slidably connected to the protective door, and the fixed block has a slope between the direction toward the guide bar and the direction toward the elastic member. The slope is located on the sliding path of the guide bar, and when the guide bar abuts the slope, the fixed block can be disengaged from the fixing hole.

[0022] By adopting the above technical solution, a slope is provided between the direction of the fixed block toward the guide bar and the direction toward the elastic member, and the slope is located on the sliding path of the guide bar. People slide the guide bar to allow the guide bar to drive the fixed block to move toward the elastic member through the slope, so that the fixed block can be disengaged from the fixing hole, and the fixed block does not limit the protective cover, so that the protective cover can rotate.

[0023] Optionally, an elastic block is provided on the fixing block. When the elastic block is inserted into the fixing hole,

[0024] The elastic block generates elastic deformation.

[0025] By adopting the above technical solution, the elastic block is inserted into the fixing hole, causing the elastic block to produce elastic deformation, so that the elastic block can abut the hole wall of the fixing hole, making the protective cover and the elastic block more secure, and further enhancing the stability between the protective cover and the fixing block.

[0026] In summary, this application includes at least one of the following beneficial technical effects:

[0027] 1. An electromagnetic lock is installed on the protective door, and the electromagnetic lock is electrically connected to the equipment inside the box, so that the electromagnetic lock can only be opened when the power is off. This makes it difficult for maintenance personnel to directly enter the box when the power is not off, reducing the operation risk of maintenance personnel and avoiding the situation where some maintenance personnel forget to turn off the power.

[0028] 2. By equipping the protective door with a travel switch, when the protective door is opened, the travel switch can directly control the power off of the equipment. When the personnel forcibly open the electromagnetic lock, the equipment can also be powered off, so that the personnel will not be in danger of accidental electric shock, further improving the safety of the box-type substation. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 is a schematic structural diagram of Example 1;

[0030] Figure 2 is a cross-sectional view highlighting the travel switch in Example 1;

[0031] Figure 3 is a schematic structural diagram of Example 2;

[0032] Figure 4 yes Figure 3 Partial cross-sectional view along line AA;

[0033] Figure 5 yes Figure 4 Schematic diagram of the enlarged portion B.

[0034] Figure numerals: 1. Box body; 11. Receiving groove; 12. Box door; 13. Travel switch; 2. Protective door; 21. Perforation; 22. Grid plate; 23. Electromagnetic lock; 3. Protective cover; 31. Card strip; 32. Card block; 33. Fixing hole; 4. Limiting strip; 41. Sliding groove; 42. Card hole; 43. Card slot; 44. First groove; 441. First magnet; 45. Second groove; 451. Second magnet; 46. Elastic groove; 461. Elastic part; 462. Fixed block; 463. Inclined surface; 47. Guide strip. DETAILED DESCRIPTION

[0035] The following is combined with Figure 1-5 This application is described in further detail.

[0036] Example 1

[0037] This embodiment discloses a box-type substation with a protective door. Figure 1 and Figure 2 A box-type substation with a protective door includes a box body 1 with a receiving slot 11 formed on its surface. Various electrical equipment is housed within the receiving slot 11. A door 12 is rotatably connected to the box body 1, completely sealing the opening of the receiving slot 11. A control switch is provided on the box body 1 for controlling the on / off of the internal high-voltage equipment.

[0038] Reference Figure 1 A protective door 2 is rotatably connected to the housing 1. It is located on the side of the door 12 facing the bottom wall of the receiving tank 11. Protective door 2 serves as a secondary door, preventing maintenance personnel from directly entering the receiving tank 11 after opening the door 12. A perforation 21 is formed on the surface of protective door 2, and a mesh panel 22 is fixedly attached to the wall of perforation 21. Mesh panel 22 allows people to see into the receiving tank 11, allowing them to directly observe the equipment without touching it.

[0039] Reference Figure 1 and Figure 2 An electromagnetic lock 23 is fixedly connected to the surface of the protective door 2 away from the bottom wall of the receiving tank 11. The electromagnetic lock 23 is electrically connected to the high-voltage equipment. The electromagnetic lock 23 can lock the protective door 2 to prevent people from opening the protective door 2. When the high-voltage equipment is powered off, the electromagnetic lock 23 can be opened. When the high-voltage equipment is powered on, the electromagnetic lock 23 cannot be opened. A limit switch 13 is fixedly connected to the wall of the receiving tank 11. The limit switch 13 is electrically connected to the high-voltage equipment. When the protective door 2 is opened, the limit switch 13 controls the power off of the high-voltage equipment.

[0040] Reference Figure 1 The protective door 2 is provided with a keyhole, and an unlocking structure is provided in the keyhole, which can forcibly unlock the electromagnetic lock 23. When people forcibly unlock the electromagnetic lock 23 with a key, the protective door 2 can be opened, preventing the electromagnetic lock 23 from malfunctioning and failing to open the protective door 2.

[0041] The implementation principle of Example 1 is: if the high-voltage equipment is not powered off, the electromagnetic lock 23 cannot be opened, preventing maintenance personnel from forgetting to power off and directly entering the box body 1.

[0042] Example 2

[0043] Reference Figure 3 and Figure 4 This embodiment differs from the first embodiment in that a protective cover 3 is rotatably connected to the protective door 2, and the electromagnetic lock 23 can be located within the protective cover 3. A sliding groove 41 is defined on the surface of the protective door 2, and a limit bar 4 is slidably connected within the sliding groove 41. The limit bar 4 extends along the length of the protective cover 3. A locking hole 42 is defined on the surface of the limit bar 4, and a locking slot 43 is defined on the bottom wall of the sliding groove 41. The locking hole 42 and the locking slot 43 can completely overlap.

[0044] Reference Figure 4 The protective cover 3 has a clamping strip 31 integrally formed thereon, and a clamping block 32 integrally formed on the surface of the clamping strip 31. Both the clamping strip 31 and the clamping block 32 can pass through the clamping hole 42 and be inserted into the clamping slot 43. When the clamping block 32 is inserted into the clamping slot 43, the electromagnetic lock 23 is completely located inside the protective cover 3.

[0045] Reference Figure 4 The clamping strip 31 passes through the clamping hole 42 and is inserted into the clamping slot 43. The limiting strip 4 is slid to misalign the clamping hole 42 and the clamping slot 43, so that the limiting strip 4 partially blocks the clamping slot 43, allowing the clamping block 32 to be located in the clamping slot 43. At this time, the protective cover 3 is fixed to the protective door 2. The limiting strip 4 is slid to align the clamping hole 42 and the clamping slot 43, and then the protective cover 3 is rotated to allow the clamping block 32 and the clamping strip 31 to be disengaged from the clamping slot 43 and the clamping hole 42.

[0046] Reference Figure 4 A first groove 44 is provided on the surface of the limit bar 4, and a first magnet 441 is fixedly connected to the first groove 44. A second groove 45 is provided on the groove wall of the sliding groove 41, and a second magnet 451 is fixedly connected to the second groove 45. The first magnet 441 can attract the second magnet 451, and the first magnet 441 and the second magnet 451 are both located in the longitudinal direction of the sliding groove 41. When the first magnet 441 attracts the second magnet 451, the clamping hole 42 and the clamping groove 43 are not aligned, and at this time the clamping block 32 is fixed in the clamping groove 43.

[0047] Reference Figure 4 and Figure 5 The limiting bar 4 has an elastic groove 46 formed on its surface, within which is an elastic member 461. The elastic member 461 comprises an elastic spring. In this embodiment, the elastic member 461 is an elastic spring; in other embodiments, the elastic member 461 may be an elastic structure such as a spring. One end of the elastic spring is fixedly connected to the bottom wall of the elastic groove 46, while the other end of the elastic spring is fixedly connected to a fixing block 462. Two elastic blocks are fixedly connected to the surface of the fixing block 462, and the elastic blocks are made of an elastic material.

[0048] Reference Figure 4 and Figure 5 The protective cover 3 has a fixing hole 33 on its surface for the fixing block 462 to be inserted into. When the fixing block 462 is inserted into the fixing hole 33, the elastic block abuts against the wall of the fixing hole 33, and the protective cover 3 does not block the electromagnetic lock 23, and the protective cover 3 is fixed to the protective door 2.

[0049] Reference Figure 4 and Figure 5 A guide bar 47 is slidably connected to the surface of the limit bar 4, and the guide bar 47 slides along the length of the limit bar 4. A sloped surface 463 is formed between the fixing block 462, which faces the elastic spring, and the fixing hole 42. This sloped surface 463 is located in the moving path of the guide bar 47. When the guide bar 47 is slid, the guide bar 47 drives the fixing block 462 via the sloped surface 463, allowing the fixing block 462 to disengage from the fixing hole 33.

[0050] The implementation principle of Example 2 is as follows: people slide the limit strip 4 to align the card hole 42 and the card slot 43, and then rotate the protective cover 3 to allow the card block 32 and the card strip 31 to disengage from the card slot 43 and the card hole 42 until the fixing block 462 is inserted into the fixing hole 33, allowing the fixing block 462 and the elastic block to fix the protective cover 3, and people unlock the electromagnetic lock 23.

[0051] Unless otherwise defined, the technical or scientific terms used in this application shall have the usual meanings understood by persons of ordinary skill in the field to which this application belongs. The words "first", "second", "third" and similar terms used in the specification and claims of this application do not indicate any order, quantity or importance, but are only used to distinguish different components. Words such as "one" or "a" do not indicate a quantity limitation, but rather indicate the existence of at least one. Words such as "include" or "comprise" mean that the elements or objects appearing before "include" or "comprises" cover the elements or objects listed after "include" or "comprises" and their equivalents, and do not exclude other elements or objects. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0052] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent replacements, improvements, etc. made within the design concept of the present application should be included in the scope of protection of the present application.

Claims

1. A box-type substation with a protective door, comprising a box body (1), wherein the box body (1) is provided with a control switch for controlling the on and off of equipment, and the box body (1) is rotatably connected to a box door (12), characterized in that: The box (1) is rotatably connected to a protective door (2), and the protective door (2) is provided with an electromagnetic lock (23). The electromagnetic lock (23) is electrically connected to the equipment inside the box (1). When the internal equipment is not powered off, the electromagnetic lock (23) locks the protective door (2).

2. A box-type substation with a protective door according to claim 1, characterized in that: The protective door (2) is provided with a travel switch (13). When the protective door (2) is opened, the travel switch (13) controls the internal equipment to cut off power.

3. The box-type substation with a protective door according to claim 1, characterized in that: A protective cover (3) is rotatably connected to the protective door (2), and the electromagnetic lock (23) is located inside the protective cover (3).

4. A box-type substation with a protective door according to claim 3, characterized in that: The protective cover (3) is provided with a clamping strip (31), the clamping strip (31) is provided with a clamping block (32), the protective door (2) is provided with a clamping slot (43) for inserting the clamping strip (31) and the clamping block (32), and the protective door (2) is slidably connected to a limit strip (4), and the limit strip (4) is used to limit the movement of the clamping block (32).

5. The box-type substation with a protective door according to claim 4, characterized in that: A clamping hole (42) is provided on the surface of the limiting strip (4), and the clamping hole (42) allows the clamping strip (31) and the clamping block (32) to pass through. When the clamping hole (42) is not aligned with the clamping slot (43), the limiting strip (4) restricts the movement of the clamping block (32).

6. The box-type substation with a protective door according to claim 5, characterized in that: A first magnet (441) is provided on the limiting strip (4), and a second magnet (451) is provided on the protective door (2). When the first magnet (441) attracts the second magnet (451), the latch hole (42) is not aligned with the latch slot (43).

7. The box-type substation with a protective door according to claim 6, characterized in that: A fixing hole (33) is provided on the surface of the protective cover (3), an elastic member (461) is provided on the limiting strip (4), a fixing block (462) for inserting into the fixing hole (33) is provided on the elastic member (461), the elastic member (461) drives the fixing block (462) to be inserted into the fixing hole (33), and when the fixing block (462) is inserted into the fixing hole (33), the protective cover (3) does not block the electromagnetic lock (23).

8. The box-type substation with a protective door according to claim 7, characterized in that: The protective door (2) is slidably connected to a guide bar (47), and the fixing block (462) has an inclined surface (463) between a direction toward the guide bar (47) and a direction toward the elastic member (461). The inclined surface (463) is located on the sliding path of the guide bar (47). When the guide bar (47) abuts against the inclined surface (463), the fixing block (462) can be separated from the fixing hole (33).

9. The box-type substation with a protective door according to claim 7, characterized in that: An elastic block is provided on the fixing block (462), and when the elastic block is inserted into the fixing hole (33), the elastic block generates elastic deformation.

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