CN102853173A - Anti-explosion closing part of wall bushing and plugging method of wall bushing - Google Patents

Abstract

The invention discloses an anti-explosion closing part of a wall bushing. The anti-explosion closing part comprises an elastic soft extrusion block, wherein clamping plates are arranged on two sides of the extrusion block, at least one pipeline hole and at least one connecting hole are evenly distributed at corresponding positions of the extrusion block and the two clamping plates, and fastening parts which are used for fastening, connecting and extruding the two clamping plates and the extrusion block are arranged inside connecting holes. The device has the advantages of being flexible and simple to construct, convenient to disassemble and change, capable of conducting construction after cables are fed through and the like. According to the device, matched closing parts can be used for plugging according to the inner diameter of the corresponding wall bushing and outer diameters of penetrating cables and pipelines after the arrangement of all pipelines and cables which penetrate through a wall is finished on site, so that the problem that construction sequences of different working shifts are disordered during pipeline construction is solved; besides, in the later usage process, when pipelines and cables are required to be added or reduced, only corresponding closing parts are required to be replaced, and then plugging can be finished, so that the replacement is convenient; and the closing part is attractive in appearance and free from construction pollution.

Description

Explosion-proof seal for wall-piercing casing and sealing method for wall-piercing casing

technical field

The invention relates to an explosion-proof sealing part of a wall-piercing casing and a sealing method for the wall-piercing casing.

Background technique

In the process of construction in various civil air defense areas, all kinds of wall-penetrating pipelines will be encountered. At present, civil defense projects, even major projects, cannot block the pipelines in a long-term, reasonable and effective manner according to the requirements of civil air defense. The most common treatment method in the process is to smear the pipe hole with a cement-like substance, and seal it after the substance hardens. However, this construction method is extremely unscientific and unreasonable, and cannot achieve the purpose of long-term air defense sealing. Because the cement will gradually deform under the action of gravity, the upper half of the pipe hole will not be sealed tightly, and even the cement will partially melt with the increase of temperature, which will lead to the failure of sealing. And the method of cement plugging, construction is complicated, and outward appearance is ugly, needs to increase or decrease pipeline and take off cement construction very difficult in the future. The above problems can be solved completely by using the plugging method of the invention.

Contents of the invention

In order to solve the problems existing in the use of the prior art, the invention provides an explosion-proof seal for a wall-piercing casing and a sealing method for the wall-piercing casing.

The technical solution of the present invention to solve the existing problems is: an explosion-proof sealing part for a wall-through casing. At least one pipeline hole and at least one connection hole are evenly distributed on the corresponding parts of the splints, and fastening parts for fastening and connecting the extruded two splints and the extruded block are arranged in the connection hole.

As a further improvement, the corresponding parts of the extrusion block and the two splints are provided with cut grooves for dividing the pipeline holes, and the outside of the splint is provided with an explosion-proof pressure plate across the cut grooves of the pipeline holes, and the explosion-proof pressure plate is located in the pipeline hole. Hollowed out, the explosion-proof pressure plate across the cutting groove is located on both sides of the cutting groove, corresponding to the extrusion block and the two splints, and a matching connection hole is provided, and the connection hole is provided to fasten the two splints, the extrusion block and the explosion-proof pressure plate Another fastening part.

As a further improvement, the said fastening parts may be matched buckles, hinges or extruded bolts and nuts. The splint on one side of the extrusion block is provided with a nut hole or a polygonal connection hole; the cut groove on the splint completely penetrates the two splints, one end of the cut groove on the extrusion block runs through the extrusion block, and the other end ends at On the extrusion block; the diameter of the above-mentioned connecting hole is slightly smaller than the outer diameter of the fastening part.

As a further improvement, the elastic and flexible extruded block is preferably a rubber or latex extruded block. Taking advantage of the characteristics of large Poisson's ratio and good elasticity of rubber, the rubber plugging scheme is used, and its anti-knock ability reaches the anti-nuclear five-level civil air defense resistance standard. This new type of device designed is mainly used in the blockage of the wall casing line in the civil air defense area. It is set up to effectively block the wall casing line hole in the civil air defense protection area and provide a reasonable and effective protection area, and it can reach the fifth level of civil air defense Explosion-proof airtight requirements.

As a further improvement, a plug is placed in the pipeline hole.

The invention also discloses a sealing method for the wall-piercing casing by using the above-mentioned explosion-proof seal. An elastic and flexible extrusion block suitable for the inner diameter of the wall-piercing casing is placed in the casing, and the two sides of the extrusion block are provided with There are splints, at least one pipeline hole and at least one connecting hole are evenly distributed at the corresponding positions of the extruded block and the two splints, and the fastening parts for fastening and connecting the extruded two splints and the extruded block are arranged in the connecting hole, and the fastening is evenly fastened. The parts are laterally deformed by extruding the extruded block through the splint, so that the extruded block is squeezed outwardly with the inner wall of the casing, and inwardly squeezed tightly with the outer wall of the through-wall pipeline.

As a further improvement, the extruded block and the two splints constitute an explosion-proof seal, and a small-sized explosion-proof seal is placed in a pipeline hole of a large-sized explosion-proof seal matching its outer diameter for combined use.

As a further improvement, the corresponding parts of the extrusion block and the two splints are provided with cut grooves for dividing the pipeline holes, and the outside of the splint is provided with an explosion-proof pressure plate across the cut grooves of the pipeline holes, and the explosion-proof pressure plate is located in the pipeline hole. The explosion-proof pressure plate across the cutting groove is located on both sides of the cutting groove, corresponding to the extrusion block and the two splints, and there are matching connecting holes. Yet another fastening part.

Compared with the prior art, the present invention has the beneficial effect that the elastic and flexible extrusion block in the middle is deformed laterally under the action of the fastening parts and the splints on both sides, expands outwards and squeezes tightly with the inner wall of the wall-through casing, and inwards Expansion and tightness of the pipeline through the wall, so as to achieve the purpose of anti-explosion and airtightness of the entire pipe hole.

The device is mainly used in the sealing of the wall casing pipeline in the civil air defense area, and it is set for the civil air defense protection area to effectively block the wall casing pipeline hole and provide a reasonable and effective protection area. Compared with the traditional plugging method of cement material, the device has the advantages of flexible and simple construction, convenient disassembly and replacement, and can be constructed after the cable is threaded. And it is more effective in anti-pressure, anti-explosion and airtight functions. This device can select matching seals to seal according to the inner diameter of the corresponding wall-through casing and the outer diameter of the passing cables and pipes after the ready-made layout of all the pipes and cables passing through the wall is completed, which solves the problem of pipeline The problem of chaotic construction sequence in different work shifts during construction; in addition, in the later use process, there are pipes and cables that need to be added or reduced, and the sealing can be completed as long as the corresponding sealing parts are replaced, and the replacement is convenient; the airtight The appearance of the parts is beautiful and there is no construction pollution.

Description of drawings

Fig. 1 is a structural schematic diagram of the present invention.

Fig. 2 is a left sectional view of Fig. 1 .

Fig. 3 is a schematic diagram of the structure of the extruded block.

Fig. 4 is a structural schematic diagram of the splint.

Fig. 5 is a structural schematic diagram of the explosion-proof pressure plate.

Detailed ways

Referring to Figures 1-5, this embodiment includes an elastic and flexible extrusion block 4, and splints 5 are provided on both sides of the extrusion block 4, and the splints 5 can be steel plates with relatively high rigidity. At least one pipeline hole 9 and at least one connection hole 1 are evenly distributed at the corresponding positions of the extrusion block 4 and the two splints 5, and the fastening parts for fastening and connecting the two splints and the extrusion block are arranged in the connection hole 1. Can be mating snaps, hinges or extruded bolts, nuts. This implementation case takes the bolt as an example, the fastening part connecting hole 1 is provided with a special bolt 2 with a special bolt tail, and a screw rod can also be used.

The extrusion block 4 and the two splints 5 are provided with cutting grooves 6 that divide the pipeline holes 9, and one of the splints or the outside of the two splints is provided with a cut groove 6 that spans the pipeline holes 9 to fix the extrusion block 4 and the splints. 5, the explosion-proof pressure plate 3 is hollowed out at the pipeline hole 9. The explosion-proof pressure plate 3 across the joint of the cut groove 6 is located on both sides of the cut groove 6, corresponding to the extrusion block 4 and the two splints 5, and there is a connection hole 1 that cooperates to form a connection hole 1 that runs through the entire sealing member for matching. The bolt 2 passes through.

As shown in Figure 1, a plurality of pipeline holes 9 are distributed at the corresponding positions of the extrusion block 4 and the two splints 5, and two cut grooves 6 respectively divide the corresponding pipeline holes 9 from both sides of the explosion-proof seal, as shown in the figure 4. The two cut grooves 6 on the splint 5 completely penetrate and divide the two splints 5, as shown in Figure 3, one end of the two cut grooves 6 on the extrusion block 4 runs through the extrusion block 4, and the other end ends on the extrusion block 4, That is, the beginning of the cutting groove starts from the outer circumference of the extrusion block 4 and passes through one or several pipeline holes 9, and the end of the cutting groove ends on the extrusion block 4, which is about 3-4 mm away from the outer circumference of the extrusion block 4, and is divided by the cutting groove The splints 5 on both sides of each small piece of extrusion block are independent respectively, which can ensure that the sealing parts are freely opened during installation, and can keep each sealing part as an organic whole without being scattered.

The connection hole that the splint 5 on one side of the extruding block 4 is provided with is a square counterbore, which can facilitate the special bolt tail to snap into the square counterbore and can limit the rotation of the bolt when the nut is tightened. The diameter of the fastening part and the connecting hole is slightly smaller than the outer diameter of the fastening part, that is, less than the diameter of the fastening part and the connecting bolt 2 . The elastic flexible extruding block 4 is a rubber or latex extruding block.

Steel or rubber plugs are placed in the pipeline holes 9, and the plugs can temporarily block the temporarily unused pipeline holes 9 to ensure the airtightness of the air defense area.

The present invention will be further explained below in conjunction with the specific usage method of the present invention.

The present invention utilizes the wall-piercing casing sealing method of the above-mentioned explosion-proof seal, uses the bolt 2 to fix the extrusion block 4 and the splint 5 on both sides in advance, puts the pipeline that needs to pass through the wall into the pipeline hole 9, and seals the fixed explosion-proof Put the parts into the corresponding casing, tighten the nuts of the fastening bolts 2 evenly, and squeeze the extrusion block 4 through the splint 5 to produce lateral deformation, so that the extrusion block 4 is squeezed outwardly with the inner wall of the casing, and inwardly with the inner wall of the casing. The outer wall of the pipeline through the wall is tightly squeezed.

In order to facilitate the placement of cables, the explosion-proof seal adopts a structure with a cut groove 6. Open the sealing member along the cutting groove 6 before installing the pipeline in the pipeline hole 9. Since the end part of the cutting groove 6 on the extrusion block 4 is connected, the splint 5 is completely separated from each small splint on both sides of the cutting groove, and the explosion-proof seal The separation angle can be greater than 120° to ensure that each cable can be put into the conduit hole 9 . After the cable is put into the pipeline hole 9, close the airtight parts, then place the explosion-proof pressure plate 3 outside the outer splint, and fix it with bolts 2 and nuts temporarily without tightening it, then push the explosion-proof seal into the wall bushing, evenly Tighten the nuts of the fastening bolts 2, and the pressure generated by the bolts squeezes the extrusion block 4 inwards through the rigid splints 5 on both sides, so that the extrusion block 4 produces lateral deformation, squeezes outwards with the inner wall of the casing, and inwards with the wall The outer wall of the pipeline is tightly squeezed, so that the airtightness of the wall casing can meet the requirements of anti-compression, anti-explosion and airtightness stipulated by civil air defense.

In addition, a small-sized explosion-proof seal can be placed in the pipeline hole of a large-sized explosion-proof seal that matches its outer diameter for combined use.

Claims (10)

1. An explosion-proof seal for a wall-piercing casing, characterized in that: it comprises an elastic and flexible extruding block, both sides of the extruding block are provided with splints, and the corresponding positions of the extruding block and the two splints are evenly distributed with at least one The pipeline hole and at least one connecting hole are provided with fastening parts for fastening and connecting the two extruded splints and the extruded block in the connected hole. 2. The explosion-proof seal for wall-piercing casing as claimed in claim 1, characterized in that: the corresponding parts of the extrusion block and the two splints are provided with cutting grooves for dividing pipeline holes, and the outer side of the splint is provided with horizontal The explosion-proof pressure plate across the pipeline hole cut groove, the explosion-proof pressure plate is hollowed out at the pipeline hole, and the explosion-proof pressure plate across the cut groove is located on both sides of the cut groove, and corresponding to the extrusion block and the two splints, there are matching connecting holes. Another fastening part for fastening and connecting the two splints, the extrusion block and the explosion-proof pressure plate is arranged in the connecting hole. 3. The explosion-proof seal for wall-piercing bushings according to claim 1 or 2, characterized in that: said fastening parts can be matched buckles, hinges or extruded bolts and nuts. 4. The explosion-proof seal for wall-piercing casing according to claim 3, characterized in that: the splint on one side of the extruded block is provided with a nut hole. 5. The explosion-proof seal for wall-piercing casing according to claim 2, characterized in that: the cut groove on the plywood completely penetrates and divides the two splints, and one end of the cut groove on the extruded block runs through the extruded Pressing block, the other end ends on the extruding block. 6. The explosion-proof seal for wall-piercing casing according to claim 1, characterized in that: said elastic and flexible extruded block is a rubber or latex extruded block. 7. The explosion-proof seal for wall-piercing casing according to claim 1, characterized in that: a plug is placed in the pipeline hole. 8. The sealing method of the wall casing, which is characterized in that: an elastic and flexible extrusion block suitable for the inner diameter of the wall casing is placed in the casing, and splints are arranged on both sides of the extrusion block, and the squeeze At least one pipeline hole and at least one connection hole are evenly distributed at the corresponding positions of the pressing block and the two splints. Fastening parts for fastening and connecting the extruded two splints and the extruded block are arranged in the connecting hole. Extruding the extruding block produces transverse deformation, so that the extruding block is tightly squeezed outwardly with the inner wall of the casing, and inwardly tightly squeezed tightly with the outer wall of the through-wall pipeline. 9. The method for sealing a wall-piercing casing as claimed in claim 8, characterized in that: the extruded block and the two splints form an explosion-proof seal, and a small-sized explosion-proof seal is inserted into the outer diameter of the seal. Used in combination in the pipeline hole of the matching large-scale explosion-proof seal. 10. The plugging method for wall-piercing bushings as claimed in claim 8 or 9, characterized in that: the corresponding parts of the extrusion block and the two splints are provided with cut grooves for dividing pipeline holes, and the outer sides of the splints are There is an explosion-proof pressure plate across the cut groove of the pipeline hole. The explosion-proof pressure plate is hollowed out at the pipeline hole, and the explosion-proof pressure plate across the cut groove is located on both sides of the cut groove. The connecting hole is provided with another fastening part for fastening and connecting the two splints, the extrusion block and the explosion-proof pressure plate.

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