An explosion-proof fence

Abstract

The application relates to the technical field of explosion-proof fences, and discloses an explosion-proof fence which comprises an upper shell and a lower shell, the upper shell is arranged on the lower shell, a ventilation hole is formed in the lower shell, a plurality of partition plates are arranged between the upper shell and the lower shell, a gas-permeable hole corresponding to the ventilation hole is formed in each of the plurality of partition plates, a through hole is formed in each of the upper shell, the lower shell and the partition plates, a fastener is arranged in the through hole, a fixing hole for inserting the fastener is formed in a battery box, the application forms sufficient explosion-proof surface length between the upper shell and the lower shell, when a flame spreads in a narrow channel, the flame needs to continuously burn to release energy to maintain itself, the thickness of the plurality of partition plates is enough to make the contact surface of the flame and the channel wall large enough, heat loss exceeds energy supplement, the flame is extinguished, the protection of electric sparks in the battery box is realized, and the explosion-proof performance of the battery box is further improved.

Description

Technical Field

[0001] This application relates to the technical field of explosion-proof fences, and in particular to an explosion-proof fence. Background Technology

[0002] Explosion-proof fencing is a safety isolation and protection facility specifically designed for flammable and explosive environments. Its main function is to effectively prevent debris, shock waves, and flames from spreading to personnel or important equipment during an explosion or shock wave. While traditional concrete walls and metal fences provide basic physical isolation, their protective limitations become increasingly apparent when faced with extreme conditions such as explosion shock waves and flying debris. Currently, explosion-proof fencing is widely used in flammable and explosive equipment such as battery boxes.

[0003] In related technologies, a battery box includes a box body, a mounting base on the box body, and a connection hole on the mounting base for connecting the battery to an external interface.

[0004] Explosion-proof battery boxes in coal mines typically contain lead-acid batteries, which release hydrogen gas during operation. Although sealed or gel batteries are used to reduce hydrogen release, hydrogen gas will still accumulate over time, posing a risk of exceeding the concentration limit. At this concentration, an electrical spark may cause an explosion inside the battery box, seriously threatening the safe operation of the equipment. Utility Model Content

[0005] To improve the explosion-proof performance of battery boxes, this application provides an explosion-proof fence.

[0006] This application provides an explosion-proof fence, which adopts the following technical solution: An explosion-proof fence includes an upper shell and a lower shell, the upper shell being disposed on the lower shell, the lower shell having ventilation holes, and multiple partitions being disposed between the upper shell and the lower shell, each of the partitions having ventilation holes corresponding to the ventilation holes. Through holes are provided in the upper shell, the lower shell, and the partitions, and fasteners are disposed within the through holes. A fixing hole is provided on the battery box for inserting the fasteners. When the fasteners are inserted into the fixing holes, the explosion-proof fence is fixed to the battery box.

[0007] By adopting the above technical solution, workers install the explosion-proof fence on the battery box using fasteners. Multiple partitions are installed between the upper and lower shells, and each partition has a vent hole corresponding to the ventilation hole. This creates a sufficient explosion-proof surface length between the upper and lower shells. When the flame propagates in the narrow channel, it needs to continuously burn and release energy to sustain itself. The thickness of the multiple partitions ensures that the contact area between the flame and the channel wall is large enough, and the heat loss exceeds the energy replenishment, causing the flame to extinguish. This achieves protection against electrical sparks inside the battery box and further improves the explosion-proof performance of the battery box.

[0008] Optionally, the partition is provided with a plurality of gaskets, and a ventilation space for hydrogen gas discharge is formed between adjacent partitions, the height of the ventilation space being equal to the thickness of the gaskets.

[0009] By adopting the above technical solution, multiple gaskets are provided on the partition, which create ventilation spaces between adjacent partitions for hydrogen to be discharged. The hydrogen and heat accumulated in the battery box can be exchanged with the outside atmosphere through multiple ventilation spaces, extending the flow path of hydrogen and heat and preventing the accumulation of hydrogen in the battery box.

[0010] Optionally, a protective cover is provided on the upper housing, and the protective cover is welded to the upper housing.

[0011] By adopting the above technical solution, a protective cover is welded onto the upper shell, which can prevent external dust and moisture from entering the ventilation space through the gaps between the ventilation partitions, reducing the occurrence of blockage between the upper and lower shells. At the same time, it protects the explosion-proof surface, reducing the possibility of foreign objects entering or the internal structure being damaged, thereby enhancing the overall stability of the explosion-proof fence.

[0012] Optionally, the gasket has raised strips on both opposite sides of its surface, and the partition and the upper housing have grooves for inserting the raised strips.

[0013] By adopting the above technical solution, grooves for inserting protrusions are provided on both the partition and the upper shell, allowing workers to insert the protrusions into the grooves to fix the gaskets to the partition. Workers can then remove the gaskets and partitions separately and clean them, thereby reducing the possibility of impurities clogging the ventilation space and further improving the stability of the explosion-proof fence.

[0014] Optionally, a spring block is provided on the groove wall of the groove, and the spring block is located on the moving path of the protrusion inserted into the groove; when the protrusion is inserted into the groove, the spring block is in a deformed state.

[0015] By adopting the above technical solution, when the protrusion is inserted into the groove, the spring block is in a deformed state, which allows the spring block to exert force on the protrusion, making the protrusion more firmly fixed in the groove and reducing the possibility of the protrusion falling out of the groove, thereby making the fixation between the gasket and the partition more reliable.

[0016] Optionally, the gasket has a first positioning block on its side and the partition has a second positioning block on its side; when the first positioning block and the second positioning block are aligned, the protrusion is inserted into the groove.

[0017] By adopting the above technical solution, the staff can position the gasket by aligning the first positioning block with the second positioning block, saving the staff time of aligning the gasket and the partition. The staff can manually press the first positioning block and the second positioning block into the same straight line, which provides greater convenience for the staff to install the gasket and the partition.

[0018] Optionally, the upper housing is provided with elastic buffer blocks, and multiple buffer blocks are provided, which surround the upper housing circumferentially and abut against the inner surface of the protective cover.

[0019] By adopting the above technical solution, multiple buffer blocks are arranged around the circumference of the upper shell and abut against the inner surface of the protective cover. This allows the buffer blocks to play a buffering role when the protective cover is impacted. As an elastic body, the buffer blocks can absorb and disperse impact energy, thereby enhancing the stability of the side structure of the explosion-proof shell and reducing the possibility of deformation of the explosion-proof shell due to impact.

[0020] Optionally, a filter screen for filtering impurities is provided at the inlet of the vent.

[0021] By adopting the above technical solution, a filter screen for filtering impurities is provided at the inlet of the ventilation hole, which can block most particles from entering the ventilation space, reduce the possibility of impurities clogging the narrow ventilation space, thereby maintaining the pressure balance inside and outside the explosion-proof fence and enhancing the overall structural stability of the explosion-proof fence.

[0022] In summary, this application includes at least one of the following beneficial technical effects: 1. By adopting the above technical solution, the workers install the explosion-proof fence on the battery box using fasteners. Multiple partitions are provided between the upper and lower shells, and each partition has a vent hole corresponding to the ventilation hole. This ensures that there is a sufficient explosion-proof surface length between the upper and lower shells. When the flame propagates in the narrow channel, it needs to continuously burn and release energy to sustain itself. The thickness of the multiple partitions ensures that the contact surface between the flame and the channel wall is large enough. The heat loss exceeds the energy replenishment, causing the flame to extinguish. This achieves protection against electrical sparks inside the battery box and further improves the explosion-proof performance of the battery box.

[0023] 2. By adopting the above technical solution, multiple gaskets are provided on the partition, which create a ventilation space between adjacent partitions for hydrogen to be discharged. The hydrogen and heat accumulated in the battery box can be exchanged with the outside atmosphere through the multi-layer ventilation space, extending the flow path of hydrogen and heat and preventing the accumulation of hydrogen in the battery box. Attached Figure Description

[0024] Figure 1 This is a structural schematic diagram of Example 1; Figure 2 This is a partial structural diagram highlighting the partition in Example 1; Figure 3 This is an exploded view of the gasket in Example 1; Figure 4 This is a structural schematic diagram of Example 2; Figure 5 This is an exploded view of the buffer block in Example 2. Reference numerals: 1. Upper housing; 11. Through hole; 111. Fastener; 12. Protective cover; 13. Buffer block; 2. Lower housing; 21. Vent hole; 211. Filter screen; 3. Partition; 31. Vent hole; 32. Vent space; 33. Groove; 331. Spring block; 34. Second positioning block; 4. Gasket; 41. Perforation; 42. Protrusion; 43. First positioning block. Detailed Implementation

[0025] The following is in conjunction with the appendix Figures 1-5 This application will be described in further detail.

[0026] Example 1 This embodiment discloses an explosion-proof fence. (Refer to...) Figure 1 and Figure 2 An explosion-proof fence includes an upper housing 1 and a lower housing 2, with the upper housing 1 fixedly connected to the lower housing 2. A vent 21 is provided on the surface of the lower housing 2 away from the upper housing 1, and the vent 21 communicates with a battery box. Multiple partitions 3 are fixedly connected between the upper housing 1 and the lower housing 2, and the partitions 3 are arranged in an array along the direction of the lower housing 2 towards the upper housing 1. Each partition 3 has a vent 31 communicating with the vent 21 on its surface away from the upper housing 1.

[0027] Reference Figure 2 The upper housing 1, lower housing 2, and partition 3 are all provided with corresponding through holes 11. Multiple through holes 11 are provided, distributed circumferentially along the four corners of the lower housing 2. Fasteners 111, which are bolts, are threaded into the through holes 11. Multiple fixing holes are provided on the outer surface of the battery box for inserting the fasteners 111, each corresponding to one of the through holes 11. Workers fix the explosion-proof fence to the battery box by inserting the fasteners 111 into the fixing holes, preventing sparks from escaping from the battery box.

[0028] Reference Figure 3Multiple gaskets 4 are fixedly connected to the surface of the partition 3 away from the lower housing 2, and the gaskets 4 are distributed along the four corners of the partition 3. The partition 3 and the gaskets 4 are bonded together with a high-grade adhesive. The gaskets 4 have through holes 41 corresponding to the through holes 11. The gaskets 4 are located between two adjacent partitions 3 or between the partition 3 and the upper housing 1. Through the support of the gaskets 4, a ventilation space 32 for hydrogen gas discharge is formed between adjacent partitions 3, and the height of the ventilation space 32 is equal to the thickness of the gasket 4. The narrow ventilation space 32 formed between adjacent partitions 3 by the gaskets 4 allows gas to slowly pass through the ventilation space 32, thereby preventing hydrogen gas accumulation and excessive pressure in the battery box.

[0029] Reference Figure 3 A protective cover 12 is fixedly connected to the surface of the upper housing 1 away from the lower housing 2, and the protective cover 12 is welded to the upper housing 1. The protective cover 12 surrounds the circumferential side surface of the explosion-proof fence, and there is a certain space between the protective cover 12 and the circumferential side surface of the partition 3. By blocking impurities in the outside air through the protective cover 12, the possibility of impurities entering through the ventilation space 32 is reduced.

[0030] The implementation principle of Example 1 is as follows: Multiple partitions 3 are provided between the upper shell 1 and the lower shell 2, and each partition 3 is provided with a vent hole 31 corresponding to the vent hole 21, so that the upper shell 1 and the lower shell 2 form a sufficient explosion-proof surface length, thereby achieving protection against electric sparks inside the battery box. Multiple gaskets 4 are provided on the partitions 3, so that the gaskets 4 form a ventilation space 32 between adjacent partitions 3 for hydrogen to be discharged. The hydrogen and heat accumulated in the battery box can be exchanged with the outside atmosphere through the multi-layer ventilation space 32, extending the flow path of hydrogen and heat and preventing the accumulation of hydrogen in the battery box.

[0031] Example 2 Reference Figure 4 and Figure 5 The difference between this embodiment and Embodiment 1 is that protrusions 42 are fixedly connected to both opposite surfaces of the gasket 4, and grooves 33 for inserting the protrusions 42 are provided on both the partition 3 and the upper housing 1. A spring block 331 is fixedly connected to the wall of the groove 33, and the spring block 331 is located on the movement path of the protrusion 42 as it inserts into the groove 33. When the worker inserts the protrusion 42 into the groove 33, the spring block 331 is in a deformed state, applying force to the protrusion 42, thus fixing the gasket 4 and the partition 3 together. Compared to bonding the partition 3 and the gasket 4 with a high-grade adhesive, the detachable connection between the partition 3 and the gasket 4 facilitates cleaning of the partition 3 and the gasket 4, reducing the possibility of blockage by impurities.

[0032] Reference Figure 5A first positioning block 43 is fixedly connected to the side surface of the gasket 4, and a second positioning block 34 is fixedly connected to the side surface of the partition 3. When the first positioning block 43 and the second positioning block 34 are aligned, the protrusion 42 can be inserted into the groove 33. At this time, the gasket 4 and the partition 3 are aligned, which facilitates the installation of multiple gaskets 4 and multiple partitions 3 by the staff.

[0033] Reference Figure 5 An elastic buffer block 13 is fixedly connected to the circumferential side surface of the upper housing 1. Multiple buffer blocks 13 are provided and arranged around the circumference of the upper housing 1. The surface of the buffer block 13 away from the upper housing 1 abuts against the inner surface of the protective cover 12. The buffer block 13 can absorb the impact energy when the protective cover 12 is impacted, so as to enhance the stability of the protective cover 12.

[0034] Reference Figure 4 A filter screen 211 for filtering impurities is fixedly connected to the end face of the vent 21 away from the upper housing 1. The filter screen 211 can filter solid impurity particles.

[0035] The implementation principle of Example 2 is as follows: When the staff needs to remove the partition 3 and the gasket 4 for cleaning, the staff removes the fastener 111 from the battery box, and then cleans the partition 3 and the gasket 4. After cleaning, the staff installs the partition 3 and the gasket 4 in sequence. By aligning the first positioning block 43 and the second positioning block 34, the installation position of the partition 3 and the gasket 4 is positioned. The staff inserts the protrusion 42 into the groove 33 to complete the installation of the partition 3 and the gasket 4.

[0036] Unless otherwise defined, the technical or scientific terms used in this application shall have the ordinary meaning understood by one of ordinary skill in the art to which this application pertains. The terms "first," "second," "third," and similar terms used in this application specification and claims do not indicate any order, quantity, or importance, but are merely used to distinguish different components. The terms "an" or "a" and similar terms do not indicate a quantity limitation, but rather indicate the presence of at least one. The terms "comprising" or "including" and similar terms mean that the elements or objects preceding "comprising" or "including" encompass the elements or objects listed following "comprising" or "including" and their equivalents, and do not exclude other elements or objects. "Above," "below," "left," "right," etc., are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0037] The above description is only a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, improvements, etc., made within the design concept of this application should be included within the protection scope of this application.

Claims

1. An explosion-proof fence, characterized in that: The device includes an upper housing (1) and a lower housing (2). The upper housing (1) is disposed on the lower housing (2). The lower housing (2) has a vent hole (21). Multiple partitions (3) are provided between the upper housing (1) and the lower housing (2). Each of the multiple partitions (3) has a vent hole (31) corresponding to the vent hole (21). Each of the upper housing (1), the lower housing (2) and the partitions (3) has a through hole (11). A fastener (111) is provided in the through hole (11). A fixing hole is provided on the battery box for inserting the fastener (111). When the fastener (111) is inserted into the fixing hole, the explosion-proof fence is fixed on the battery box.

2. The explosion-proof fence according to claim 1, characterized in that: The partition (3) is provided with a plurality of gaskets (4), and a ventilation space (32) for hydrogen gas discharge is formed between adjacent partitions (3), the height of the ventilation space (32) being equal to the thickness of the gaskets (4).

3. The explosion-proof fence according to claim 1, characterized in that: The upper housing (1) is provided with a protective cover (12), which is welded to the upper housing (1).

4. The explosion-proof fence according to claim 2, characterized in that: The gasket (4) has protrusions (42) on both opposite sides of its surface, and the partition (3) and the upper housing (1) are provided with grooves (33) for the protrusions (42) to be inserted.

5. The explosion-proof fence according to claim 4, characterized in that: The groove (33) has a spring block (331) on its groove wall. The spring block (331) is located on the moving path of the protrusion (42) inserted into the groove (33). When the protrusion (42) is inserted into the groove (33), the spring block (331) is in a deformed state.

6. The explosion-proof fence according to claim 4, characterized in that: The gasket (4) has a first positioning block (43) on its side and the partition (3) has a second positioning block (34) on its side; when the first positioning block (43) and the second positioning block (34) are aligned, the protrusion (42) is inserted into the groove (33).

7. The explosion-proof fence according to claim 3, characterized in that: The upper housing (1) is provided with elastic buffer blocks (13), and multiple buffer blocks (13) are provided. The multiple buffer blocks (13) surround the upper housing (1) circumferentially, and the buffer blocks (13) abut against the inner surface of the protective cover (12).

8. The explosion-proof fence according to claim 1, characterized in that: The vent (21) is provided with a filter screen (211) for filtering impurities at the inlet.

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