Cable branch box with safety protection box door structure

Abstract

The invention relates to the technical field of cable branch boxes, and discloses a cable branch box with a safety protection box door structure, the cable branch box comprises a box body and a box door, the box door is rotatably connected to the box body, the box door is provided with a grounding wire, the box door is provided with a fastening bolt, and the box door is provided with a threaded groove for threaded connection of the fastening bolt; when the fastening bolt is in threaded connection with the interior of the threaded groove, the ground wire is located between the fastening bolt and the box door, a worker enables the fastening bolt to abut against the ground wire, the fastening bolt is inserted into the threaded groove, the ground wire is fixed through the fastening bolt, and if the box door is electrified, current can be guided into the ground through the ground wire, so that the ground wire is prevented from being damaged. The possibility of electric shock caused by mistakenly touching the box door by workers is reduced, and the safety performance of operating the cable branch box by the workers is improved.

Description

Technical Field

[0001] The present application relates to the technical field of cable branch boxes, and in particular to a cable branch box with a safety protection box door structure. Background Art

[0002] Cable branch boxes are key equipment in power distribution systems. They are mainly used for tapping, branching, connecting and circuit conversion of cable lines. They are fully insulated, fully enclosed, corrosion-resistant and maintenance-free. They are widely used in urban power grids, residential communities, industrial parks and other scenarios. Cable branch boxes are usually made of metal.

[0003] In the related art, a cable branch box includes a box body and a box door, and the box door is rotatably connected to the box body.

[0004] When the electrical components inside the box leak electricity, the current will be transmitted to the box door because it is made of metal. At this time, the staff will be directly electrocuted if they touch the box door with their hands, which puts the staff at risk of electric shock. Summary of the Invention

[0005] In order to improve the problem of possible electric shock caused by touching the box door, the present application provides a cable branch box with a safety protection box door structure.

[0006] The present application provides a cable branch box with a safety protection door structure, which adopts the following technical solutions: A cable branch box with a safety protection door structure includes a box body and a door. The door is rotatably connected to the box body. A grounding wire is provided on the door. A fastening bolt is provided on the door. A threaded groove for threaded connection of the fastening bolt is opened on the door. When the fastening bolt is threadedly connected in the threaded groove, the grounding wire is located between the fastening bolt and the door.

[0007] By adopting the above technical solution, the staff allows the fastening bolt to abut the grounding wire and inserts the fastening bolt into the threaded groove to fix the fastening bolt to the grounding wire. If the box door is energized, the current can be introduced into the ground through the grounding wire, reducing the possibility of staff accidentally touching the box door and causing electric shock, thereby improving the safety performance of staff operating the cable branch box.

[0008] Optionally, an operating strip is rotatably connected to the box door, an operating block is provided on the operating strip, a through hole is provided on the box door for the operating strip to pass through, a card rod is provided on the operating block, and a slot is provided on the box body for the card rod to be inserted; when the card rod is inserted into the slot, the box door is fixed to the box body.

[0009] By adopting the above technical solution, the staff rotates the operating bar, allowing the operating bar to drive the operating block to rotate, so that the card rod can be smoothly disengaged from the card slot, and the door can be unlocked from the box body, so that the staff can unlock the door and reduce the situation where the door is opened by accident due to external animals or external personnel touching the door by mistake.

[0010] Optionally, a torsion spring is provided on the operating block, and the torsion spring is used to drive the card rod to insert into the card slot; when the card rod is out of the card slot, the torsion spring is in a compressed state.

[0011] By adopting the above technical solution, the operating block is driven to rotate by the torsion spring, so that the card rod can be smoothly inserted into the card slot, thereby reducing the possibility of the card rod detaching from the card slot, making the door and the box body more secure; at the same time, the staff needs to overcome the resistance of the torsion spring to allow the card rod to detach from the card slot, reducing the possibility of accidental touch by external personnel or animals.

[0012] Optionally, a receiving groove with a communicating perforation is provided on the outer surface of the box door, the operating bar is rotatably connected to the receiving groove, and a cover plate is rotatably connected to the box door, and the cover plate is used to block the opening of the receiving groove.

[0013] By adopting the above technical solution, the operating bar is rotatably connected to the receiving groove, and the cover plate blocks the opening of the receiving groove, so that the cover plate can limit the rotation of the operating bar, further reducing the situation where external factors directly contact the operating bar.

[0014] Optionally, a locking strip is provided in the accommodating groove, a connecting strip is slidably connected to the locking strip, a locking hole is provided on the connecting strip, and a through hole is provided on the cover plate for the connecting strip to pass through; when the cover plate blocks the accommodating groove, the connecting strip passes through the through hole, and the locking hole is located on the side of the cover plate away from the operating block.

[0015] By adopting the above technical solution, the connecting strip passes through the through hole, and the locking hole is located on the side of the cover away from the operating block, so that the staff can hang a lock in the locking hole to lock the cover, thereby reducing the risk of outsiders forcibly opening the cover and protecting the cable branch box; at the same time, when the staff needs to open the cover, the staff first unlocks the lock, takes the lock out of the locking hole, and then slides the connecting strip so that the connecting strip is located in the receiving groove before the cover can be unlocked.

[0016] Optionally, a rotation bar is rotatably connected to the operation bar, and a rotation hole is provided on the rotation bar for the locking bar to pass through; when the locking bar is located in the rotation hole, the clamping rod is located in the clamping slot.

[0017] By adopting the above technical solution, the locking bar is located in the rotating hole, so that the locking bar can limit the rotating bar, reducing the possibility of the rotating bar rotating on the operating bar, thereby reducing the possibility of the operating bar rotating; at the same time, when the staff seals the accommodating groove with the cover plate, it is necessary to insert the locking bar into the rotating hole, allowing the locking bar to limit the rotating bar, so that the card rod can be located in the card slot, reducing the situation where the staff misses to lock the box door.

[0018] Optionally, a accommodating spring plate is provided on the box door, and the accommodating spring plate is located on a side of the grounding wire close to the fastening bolt, and the accommodating spring plate drives the grounding wire to squeeze the box door.

[0019] By adopting the above technical solution, the accommodating spring clip is located on the side of the grounding wire close to the fastening bolt, so that the accommodating spring clip drives the grounding wire to squeeze the box door, so that the fastening bolt can fix the grounding wire more stably, reducing the possibility of the grounding wire not being tightened due to process errors of the fastening bolt.

[0020] Optionally, a gear set is rotatably connected to the box door, and a accommodating block is provided on the gear set, and the accommodating block is located on the side of the grounding wire away from the box door. A reminder block is meshingly connected to the gear set, and a reminder hole is provided on the box door for the reminder block to slide; when the grounding wire abuts the box door, the reminder block is completely located in the reminder hole; when the grounding wire is detached from the box door, the reminder block extends out of the reminder hole.

[0021] By adopting the above technical solution, if the grounding wire is not detached from the box door, the gear set does not drive the reminder block to move; if the fastening bolts and the box door are loose, the staff pulls the box door, and the grounding wire will move toward the side away from the box door. Since the accommodating block is located on the side of the grounding wire away from the box door, the grounding wire can drive the gear set to rotate through the accommodating block, and the gear set can drive the reminder block to rotate, so that the reminder block extends out of the reminder hole, allowing the staff to directly observe the protrusion of the reminder block, so that the staff knows that the grounding wire is detached, avoiding the risk of electric shock caused by direct contact with the box door.

[0022] Optionally, a limiting spring piece is provided on the reminder block, and the limiting spring piece is bent toward a side away from the reminder block; when the reminder block extends out of the reminder hole, the limiting spring piece abuts against the outer surface of the box door.

[0023] By adopting the above technical solution, when the reminder block extends from the reminder hole, the limiting spring plate bends toward the side away from the reminder block, so that the limiting spring plate can abut the outer surface of the box door, so that the limiting spring plate limits the retreat of the reminder block, reducing the possibility of the reminder block retreating into the reminder hole due to vibration, so that the reminder block can be stably located outside the box door.

[0024] In summary, this application includes at least one of the following beneficial technical effects: 1. The staff makes the fastening bolt touch the grounding wire and inserts the fastening bolt into the threaded groove to fix the fastening bolt to the grounding wire. If the box door is energized, the current can be introduced into the ground through the grounding wire, reducing the possibility of electric shock caused by the staff accidentally touching the box door, and improving the safety performance of the staff operating the cable branch box.

[0025] 2. If the grounding wire is not detached from the box door, the gear set does not drive the reminder block to move; if the fastening bolts and the box door are loose, the staff pulls the box door, and the grounding wire will move toward the side away from the box door. Since the accommodating block is located on the side of the grounding wire away from the box door, the grounding wire can drive the gear set to rotate through the accommodating block, and the gear set can drive the reminder block to rotate, so that the reminder block extends out of the reminder hole, allowing the staff to directly observe the protrusion of the reminder block, so that the staff can know that the grounding wire is detached, avoiding the risk of electric shock caused by direct contact with the box door. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 is a structural diagram of Example 1; Figure 2 It is along Figure 1 Cross-sectional view along line AA; Figure 3 yes Figure 2 An enlarged schematic diagram of part B; Figure 4 is an exploded schematic diagram highlighting the rotation bar in Example 1; Figure 5 This is a structural diagram highlighting the fastening bolts in Example 1; Figure 6 yes Figure 5 A magnified schematic diagram of part C; Figure 7 is a schematic structural diagram of Example 2; Figure 8 It is along Figure 7 Partial cross-sectional view of the midline DD; Figure 9 is a schematic structural diagram highlighting the torsion spring in Example 2; Figure 10 This is a structural diagram showing the door in Example 2; Figure 11 yes Figure 10 A magnified schematic diagram of part E; Figure 12 It is a structural diagram showing the prominent limiting spring in Example 2.

[0027] Reference numerals: 1, box body; 11, placement groove; 12, cover plate; 121, through hole; 13, reminder hole; 2, box door; 21, receiving groove; 22, through hole; 23, operation bar; 231, operation block; 232, clamping rod; 233, clamping groove; 234, operation hole; 235, rotating rod; 236, rotating bar; 237, rotating hole; 238, torsion spring; 24, locking bar; 25, fastening bolt ; 26. Grounding wire; 261. Grounding plate; 27. Accommodating spring; 28. Connecting strip; 281. Connecting groove; 282. Connecting spring; 283. Locking hole; 3. Gear set; 31. First gear; 32. Second gear; 33. Gear rod; 34. Placement plate; 35. Accommodating block; 36. Reminder block; 361. Limiting spring; 37. Stop plate; 371. Stop slope; 372. Elastic block. DETAILED DESCRIPTION

[0028] The following is combined with Figure 1-12 This application is described in further detail.

[0029] Example 1 This embodiment discloses a cable branch box with a safety protection box door structure. Figure 1 and Figure 2 A cable branch box with a safety protection door structure includes a box body 1 and a door 2. The door 2 is rotatably connected to the box body 1. The box body 1 is provided with a placement slot 11 for placing power supply components.

[0030] Reference Figure 3 The outer surface of the door 2 is provided with a receiving groove 21, and the bottom wall of the receiving groove 21 is provided with a through hole 22. An operating strip 23 is rotatably connected to the receiving groove 21, and an operating block 231 is fixedly connected to the operating strip 23. The operating strip 23 passes through the through hole 22 so that the operating block 231 is located on the other side of the door 2.

[0031] Reference Figure 2 and Figure 3 Two latching rods 232 are rotatably connected to the surface of the operating block 231. One latching rod 232 extends in a vertically downward direction, and the other latching rod 232 extends in a vertically upward direction. Both latching rods 232 slide in the vertical direction. Two latching slots 233 are formed on the wall of the placement slot 11, and the two latching slots 233 are respectively for inserting corresponding latching rods 232. When each latching rod 232 is inserted into the corresponding latching slot 233, the box door 2 is fixedly connected to the box body 1, and the latching rod 232 is locked. When the latching rod 232 is disengaged from the corresponding latching slot 233, the latching rod 232 is unlocked. When the staff rotates the operating bar 23, the operating bar 23 drives the two latching rods 232 to move through the operating block 231, and the latching rod 232 is inserted into the latching slot 233.

[0032] Reference Figure 3 and Figure 4 The door 2 is rotatably connected to a cover plate 12, which is used to block the opening of the receiving slot 21. An operating hole 234 is formed on the surface of the operating bar 23. A rotating rod 235 is fixedly connected to the operating hole 234. A rotating bar 236 is rotatably connected to the rotating rod 235. The rotating bar 236 can rotate on the operating bar 23 in a direction away from the housing 1, and the rotating bar 236 can drive the operating bar 23 to rotate.

[0033] Reference Figure 2 、 Figure 3 and Figure 4 A rotation hole 237 is formed on the surface of the rotation bar 236, and a locking bar 24 is fixedly connected to the bottom wall of the receiving groove 21. The locking bar 24 can be inserted into the rotation hole 237. When the locking bar 24 is inserted into the rotation hole 237, the rotation bar 236 can be completely located in the receiving groove 21. At this time, the locking rod 232 can be located in the locking groove 233, and the locking bar 24 can restrict the rotation bar 236.

[0034] Reference Figure 5 A plurality of fastening bolts 25 are provided on the door 2, and a threaded groove for inserting the fastening bolts 25 is provided on the surface of the door 2 close to the box body 1. There are a plurality of threaded grooves, and the fastening bolts 25 are threadedly connected in the threaded grooves.

[0035] Reference Figure 5 and Figure 6 The door 2 is provided with two grounding wires 26. Grounding lugs 261 are fixedly connected to the end faces of the grounding wires 26, and the grounding lugs 261 are passed through by the fastening bolts 25. A retaining spring 27 is provided on the door 2. The retaining spring 27 is passed through by the fastening bolts 25 and is located between the fastening bolts 25 and the grounding lugs 261. The fastening bolts 25 pass through the retaining spring 27 and the grounding lugs 261 in sequence and are inserted into the threaded grooves, thereby securing the fastening bolts 25 to the grounding lugs 261.

[0036] Reference Figure 5 and Figure 6 One end of one grounding wire 26 is grounded, and the other end of the grounding wire 26 is installed on the box door 2. One end of another grounding wire 26 is installed on the box door 2, and the other end of the grounding wire 26 is installed on the operating block 231. The grounding treatment at the box door 2 and the operating bar 23 is realized to prevent the staff from getting an electric shock.

[0037] The implementation principle of Example 1 is as follows: the staff puts the fastening bolt 25 against the grounding wire 26 so that the electricity in the door 2 can be discharged from the grounding wire 26 .

[0038] Example 2 Reference Figure 7 and Figure 8The difference between this embodiment and embodiment 1 is that a through hole 121 is provided on the surface of the cover plate 12, through which the locking bar 24 passes. A connecting bar 28 is slidably connected to the surface of the locking bar 24, and the connecting bar 28 can extend from the through hole 121. A connecting groove 281 is provided on the surface of the connecting bar 28 for inserting one end of the locking bar 24. A connecting spring 282 is fixedly connected to the bottom wall of the connecting groove 281, and the surface of the connecting spring 282 away from the bottom wall of the connecting groove 281 abuts against the end face of the locking bar 24. The connecting spring 282 drives the connecting bar 28 to slide in the direction away from the bottom wall of the accommodating groove 21, that is, the connecting bar 28 can extend from the through hole 121. A locking hole 283 is provided on the surface of the connecting bar 28, and the locking hole 283 is used by the staff to hang the lock.

[0039] Reference Figure 8 When the staff needs to open the cover 12, the staff first unlocks the lock and takes it out from the locking hole 283. Then the staff presses the connecting bar 28 so that the connecting bar 28 can be located in the receiving groove 21, and then rotates the cover 12.

[0040] Reference Figure 7 and Figure 9 The operating bar 23 is provided with a torsion spring 238, which can drive the operating bar 23 to rotate. When the latch 232 is locked, the torsion spring 238 is in a compressed state, thereby fixing the door 2 to the box body 1. When the latch 232 is unlocked, the torsion spring 238 is still in a compressed state.

[0041] Reference Figure 10 A gear set 3 is rotatably connected on the surface of the box door 2.

[0042] Reference Figure 11 The gear set 3 includes a first wheel 31, a second gear 32, and a gear rod 33. A placement plate 34 is fixedly connected to the surface of the door 2. The gear rod 33 is rotatably connected to the placement plate 34. The first wheel 31 and the second gear 32 are both fixedly connected to the gear rod 33. The diameter of the first wheel 31 is smaller than the diameter of the second gear 32.

[0043] Reference Figure 11 A receiving block 35 is fixedly connected to the outer surface of the first wheel 31. The receiving block 35 is located on the side of the grounding plate 261 near the receiving spring 27. When the fastening bolt 25 is loosened, the staff pulls the door 2, and the grounding plate 261 can move away from the door 2, causing the receiving block 35 to rotate.

[0044] Reference Figure 11A reminder block 36 is meshedly connected to the surface of the second gear 32, and a reminder hole 13 is formed on the surface of the door 2 for the reminder block 36 to pass through. When the accommodating block 35 drives the first wheel 31 to rotate, the first wheel 31 drives the second gear 32 to rotate via the gear rod 33, causing the second gear 32 to drive the reminder block 36 to extend from the reminder hole 13. This allows staff to directly observe the protrusion of the reminder block 36 and inform them that the fastening bolt 25 is loose.

[0045] Reference Figure 11 and Figure 12 Two limit springs 361 are fixedly connected to the outer surface of the reminder block 36. The two limit springs 361 are bent in a direction away from the limit block. When the reminder block 36 extends out of the reminder hole 13, the limit springs 361 return to their original position. At this time, the limit springs 361 abut the outer surface of the door 2, allowing the limit springs 361 to prevent the reminder block 36 from retracting into the reminder hole 13.

[0046] Reference Figure 11 and Figure 12 A stop plate 37 is slidably connected to the outer surface of the door 2. The movement path of the stop plate 37 intersects the rotation path of the cover plate 12. A stop bevel 371 is formed on the surface of the stop plate 37 near the door 2. The distance between the stop bevel 371 and the door 2 gradually decreases along the direction from the warning hole 13 to the receiving groove 21, and the stop bevel 371 is located on the movement path of the warning block 36.

[0047] Reference Figure 12 An elastic block 372 is fixedly connected to the outer surface of the door 2, and the elastic block 372 is located on the moving path of the stop plate 37. When the surface of the stop plate 37 close to the door 2 abuts against the elastic block 372, the stop plate 37 does not limit the movement of the cover plate 12.

[0048] Reference Figure 12 When the reminder block 36 extends from the reminder hole 13, the reminder block 36 drives the stop plate 37 to move, and the limiting spring piece 361 can be deformed and can continue to drive the stop plate 37 to move, so that the stop plate 37 can be located on the rotation path of the cover 12. At this time, the stop plate 37 limits the opening of the cover 12, and then the limiting spring piece 361 is located between the elastic block 372 and the stopping inclined surface 371, so that the limiting spring piece 361 can limit the stop plate 37 from resetting, and the elastic block 372 limits the limiting spring piece 361 from moving into the reminder hole 13.

[0049] The implementation principle of Example 2 is: when the fastening bolt 25 is loosened, the grounding plate 261 moves toward the side away from the box door 2, and the grounding plate 261 drives the accommodating bar to move, allowing the first wheel 31 to drive the second gear 32 to rotate through the gear rod 33, and then the second gear 32 drives the reminder block 36 to extend from the reminder hole 13, and the reminder block 36 drives the stop plate 37 to move through the stop bevel 371, so that the stop plate 37 limits the opening of the cover 12.

[0050] 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.

[0051] 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 cable branch box with a safety protection door structure, comprising a box body (1) and a box door (2), wherein the box door (2) is rotatably connected to the box body (1), characterized in that: The box door (2) is provided with a grounding wire (26), the box door (2) is provided with a fastening bolt (25), and the box door (2) is provided with a thread groove for threaded connection of the fastening bolt (25); when the fastening bolt (25) is threadedly connected in the thread groove, the grounding wire (26) is located between the fastening bolt (25) and the box door (2).

2. The cable branch box with a safety protection door structure according to claim 1, characterized in that: An operating bar (23) is rotatably connected to the box door (2), an operating block (231) is provided on the operating bar (23), a through hole (22) for the operating bar (23) to pass through is provided on the box door (2), a clamping rod (232) is provided on the operating block (231), and a slot (233) for the clamping rod (232) to be inserted into is provided on the box body (1); when the clamping rod (232) is inserted into the slot (233), the box door (2) is fixed to the box body (1).

3. The cable branch box with a safety protection door structure according to claim 2, characterized in that: The operating block (231) is provided with a torsion spring (238), and the torsion spring (238) is used to drive the clamping rod (232) to be inserted into the clamping slot (233); when the clamping rod (232) is separated from the clamping slot (233), the torsion spring (238) is in a compressed state.

4. The cable branch box with a safety protection door structure according to claim 2, characterized in that: The outer surface of the box door (2) is provided with a receiving groove (21) communicating with a through hole (22); the operating strip (23) is rotatably connected to the receiving groove (21); a cover plate (12) is rotatably connected to the box door (2); and the cover plate (12) is used to block the opening of the receiving groove (21).

5. The cable branch box with a safety protection door structure according to claim 4, characterized in that: A locking bar (24) is provided in the receiving groove (21), a connecting bar (28) is slidably connected to the locking bar (24), a locking hole (283) is provided on the connecting bar (28), and a through hole (121) is provided on the cover plate (12), the through hole (121) is for the connecting bar (28) to pass through; when the cover plate (12) blocks the receiving groove (21), the connecting bar (28) passes through the through hole (121), and the locking hole (283) is located on a side of the cover plate (12) away from the operating block (231).

6. The cable branch box with a safety protection door structure according to claim 5, characterized in that: The operating bar (23) is rotatably connected to a rotating bar (236), and the rotating bar (236) is provided with a rotating hole (237) for the locking bar (24) to pass through; when the locking bar (24) is located in the rotating hole (237), the clamping rod (232) is located in the clamping groove (233).

7. The cable branch box with a safety protection door structure according to claim 1, characterized in that: The box door (2) is provided with a accommodating spring piece (27), which is located on a side of the grounding wire (26) close to the fastening bolt (25), and the accommodating spring piece (27) drives the grounding wire (26) to squeeze the box door (2).

8. The cable branch box with a safety protection door structure according to claim 7, characterized in that: The door (2) is rotatably connected to a gear set (3), and the gear set (3) is provided with a receiving block (35). The receiving block (35) is located on the side of the grounding wire (26) away from the door (2). The gear set (3) is meshedly connected to a reminder block (36), and the door (2) is provided with a reminder hole (13) for the reminder block (36) to slide. When the grounding wire (26) abuts the door (2), the reminder block (36) is completely located in the reminder hole (13); when the grounding wire (26) is separated from the door (2), the reminder block (36) extends out of the reminder hole (13).

9. The cable branch box with a safety protection door structure according to claim 8, characterized in that: The reminding block (36) is provided with a limiting spring piece (361), and the limiting spring piece (361) is bent toward a side away from the reminding block (36); when the reminding block (36) extends out of the reminding hole (13), the limiting spring piece (361) abuts against the outer surface of the box door (2).

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