Embedded mine explosion-proof door leaf

Abstract

The utility model discloses an embedded mine explosion -proof door fan, including front panel, back panel and frame, and the frame is integrally formed with front panel, and the back panel is detachably connected and fixed with the frame, and the outside of front panel is equipped with several hollow embedding grooves, and the bottom of embedding groove is equipped with sealing washer, and the embedding groove is covered with compression -resistant board, and the inside of front panel is equipped with filler plate, and the inside middle part of compression -resistant board is equipped with transmission rod, and the transmission rod is through filler plate, and the transmission rod is equipped with the locking piece of screw connection with it on the sleeve joint, and the locking piece spacing filler plate, and the inside of back panel is equipped with the receiving sleeve seat of transmission rod's correspondence, and the transmission rod is butt jointed with receiving sleeve seat. Compared with the prior art, the utility model has better impact load, can keep self sealing performance under impact load, and damaged parts can be quickly replaced.

Description

Technical Field

[0001] This utility model pertains to mining door panels, specifically an embedded explosion-proof mining door panel. Background Technology

[0002] Mine safety is a core priority for the coal industry. Explosion-proof doors, as key safety facilities in mine ventilation systems, play an irreplaceable role in preventing and mitigating the consequences of gas and coal dust explosions. When an explosion occurs underground, explosion-proof doors need to effectively absorb and disperse the shock wave energy through their structural characteristics, while maintaining good sealing performance to prevent the spread of harmful gases, thus creating conditions for mine recovery and personnel rescue.

[0003] Currently, explosion-proof doors for mining mainly consist of components such as door frames, door panels, and sealing devices. Traditional explosion-proof door panels generally adopt an integral structural design, that is, a single or multiple layers of steel plates welded to an internal frame (such as angle steel or square steel distributed in a grid pattern) to form an integral door panel. After being damaged by impact, due to the characteristics of its integral welded structure, this type of traditional explosion-proof door panel usually requires disassembly and replacement of the entire door panel or complex on-site repair, resulting in long maintenance cycles and high costs.

[0004] To address the aforementioned issues, some technicians have proposed modular assembly improvements to the door panels. For example, patent document CN217152003U discloses a spliced ​​damper, which reveals that several bamboo plywood sheets are embedded inside the damper frame and covered by a cover plate. When the bamboo plywood sheets are damaged by impact, the cover plate can be opened to remove the damaged sheets for partial replacement, effectively overcoming the problems of long maintenance cycles and high costs. However, this solution also has some drawbacks: after an impact, gaps will form between the bamboo plywood sheets and the mounting eaves of the damper frame, affecting the door panel's sealing performance; the bamboo plywood sheets lack a path to transfer force to the entire door panel, resulting in relatively low impact load. Therefore, it is essential to design a mining explosion-proof door panel that can maintain its sealing performance under impact loads and allows for quick replacement of damaged parts. Utility Model Content

[0005] The purpose of this invention is to overcome the problems existing in the current explosion-proof door panels and to provide a mining explosion-proof door panel that can maintain its sealing performance under impact load and whose damaged parts can be quickly replaced.

[0006] The technical solution adopted by this utility model to solve its technical problem is: an embedded explosion-proof door for mining, including a front panel, a rear panel and a frame. The frame is integrally formed with the front panel, and the rear panel is detachably connected and fixed to the frame. The outer side of the front panel is provided with several hollow embedding grooves. The bottom of the embedding groove is provided with a sealing gasket. The embedding groove is covered with a pressure-resistant plate. The inner side of the front panel is provided with a filling plate. The middle of the inner side of the pressure-resistant plate is provided with a transmission rod. The transmission rod passes through the filling plate. A locking member is threadedly connected to the transmission rod. The locking member limits the filling plate. The inner side of the rear panel is provided with a receiving sleeve corresponding to the transmission rod. The transmission rod is connected to the receiving sleeve.

[0007] Optionally, the inner side of the rear panel is provided with reinforcing ribs, and a partial reinforcing plate is provided between the locking member and the filling plate.

[0008] Optionally, a flexible sealing plate is provided between the front panel and the filler plate.

[0009] The utility model is used as follows: together with the door frame, it forms a mining explosion-proof door. The eaves where the door leaf contacts the door frame are located on the inside of the door leaf (to facilitate the transfer of force from the door leaf to the door frame). A sealing gasket is provided between the contact surfaces of the door frame and the door leaf (to improve the overall sealing performance).

[0010] The principle of this invention is as follows: The pressure-resistant plate on the door leaf is an independent functional unit, positioned by a transmission rod and the internal filling plate and locking components. If the pressure-resistant plate is damaged, the back panel can be opened, the locking components removed, and the damaged pressure-resistant plate pulled out with the rod to replace it with a new one, achieving quick disassembly and assembly. The embedded groove is set on the outside of the front panel, and the sealing gasket at the bottom of the embedded groove forms a special fit with the pressure-resistant plate. When impacted, the impact force pushes the pressure-resistant plate inward to press it tighter, making the sealing contact more compact, so that the door leaf can maintain its sealing performance under impact load. The pressure-resistant plate is connected to the front panel, filling plate, back panel and frame through the transmission rod, locking components and receiving sleeve. When the pressure-resistant plate is impacted, part of the impact force is transmitted to the front panel, part is absorbed by the filling plate along the transmission rod, and part is transmitted to the back panel through the transmission rod. The impact force on the front panel and back panel will be transmitted to the frame, thereby dispersing the local impact energy to the entire door leaf structure and improving the impact load capacity of the door leaf.

[0011] Compared with the prior art, the present invention has at least the following advantages: the present invention has better impact load, can maintain its sealing performance under impact load, and damaged parts can be quickly replaced. Attached Figure Description

[0012] Figure 1 This is a schematic cross-sectional view of the present invention. The following components are labeled as follows: front panel 1, rear panel 2, frame 3, embedded groove 4, sealing gasket 5, pressure-resistant plate 6, filling plate 7, transmission rod 8, locking component 9, receiving sleeve 10, reinforcing rib 11, local reinforcing plate 12, flexible sealing plate 13. Detailed Implementation

[0013] The specific embodiments of this utility model are described below, but the embodiments are merely illustrative and not limiting.

[0014] refer to Figure 1 In this embodiment, the embedded explosion-proof mining door includes a front panel 1, a rear panel 2, and a frame 3. The front panel, rear panel, and frame are made of high-strength steel. The frame is integrally formed with the front panel, and the rear panel is fixed to the frame with screws. The outer side of the front panel has six hollow embedding slots 4, arranged in three rows and two columns, covering the entire outer side of the front panel. The embedding slots are square, and their depth is adjusted according to the thickness of the front panel. A sealing gasket 5 made of fluororubber is bonded to the bottom of the embedding slot. A pressure-resistant plate is placed inside the embedding slot. 6. A filling plate 7 is provided on the inner side of the front panel, and a transfer rod 8 is provided in the middle of the inner side of the pressure-resistant plate. The pressure-resistant plate and the transfer rod are integrally formed from high-strength steel. The filling plate is made of bamboo plywood. The transfer rod passes through the filling plate. A locking part 9, which is threadedly connected to the transfer rod, is sleeved on the transfer rod. The locking part is a nut. The locking part limits the filling plate, so that the filling plate and the pressure-resistant plate clamp the front panel. A receiving sleeve 10 corresponding to the transfer rod is provided on the inner side of the rear panel. The receiving sleeve is integrally formed with the rear panel. The transfer rod is connected to the receiving sleeve, and the transfer rod transmits the impact force to the receiving sleeve.

[0015] In this embodiment, a reinforcing rib 11 is provided on the inner side of the rear panel. The reinforcing ribs are arranged in a radial and circumferential combination around the receiving sleeve, which disperses the concentrated impact load received by the receiving sleeve to the entire rear panel, reducing the probability of the rear panel bending and deforming under the impact of an explosion. A local reinforcing plate 12 is provided between the locking member and the filling plate. The local reinforcing plate is made of high-strength steel to prevent the generation of extremely high local stress on the filling plate and to avoid the filling plate being crushed, torn or permanently deformed.

[0016] In this embodiment, a flexible sealing plate 13 is provided between the front panel and the filling plate. The flexible sealing plate is made of silicone rubber fiberglass cloth, which enhances the sealing of the door leaf and absorbs impact micro-vibrations to a certain extent.

[0017] The above description is merely a preferred embodiment of this utility model and is not intended to limit this embodiment in any way. Any person skilled in the art can make many possible variations and modifications to this utility model using the disclosed methods and techniques, or modify it into equivalent embodiments with equivalent changes, without departing from the scope of the technical solution of this utility model; all such modifications shall still fall within the protection scope of this utility model.

Claims

1. An embedded explosion-proof mining door, comprising a front panel (1), a rear panel (2), and a frame (3), wherein the frame is integrally formed with the front panel, and the rear panel is detachably connected and fixed to the frame, characterized in that: The front panel has several hollow embedding slots (4) on the outside, a sealing gasket (5) at the bottom of the embedding slot, and a pressure-resistant plate (6) covering the embedding slot. The front panel has a filling plate (7) on the inside, and a transmission rod (8) in the middle of the inner side of the pressure-resistant plate. The transmission rod passes through the filling plate, and a locking part (9) is threaded onto the transmission rod. The locking part limits the filling plate. The rear panel has a receiving sleeve (10) corresponding to the transmission rod on the inside, and the transmission rod is connected to the receiving sleeve.

2. The embedded explosion-proof mining door according to claim 1, characterized in that: The inner side of the rear panel is provided with a reinforcing rib (11), and a local reinforcing plate (12) is provided between the locking element and the filling plate.

3. The embedded explosion-proof mining door according to claim 1, characterized in that: A flexible sealing plate (13) is provided between the front panel and the filler plate.

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