CN217903883U - Waterproof flame-retardant cable plastic sealing plug - Google Patents

Abstract

The utility model provides a waterproof and flame-retardant cable plastic sealing plug. The technical solution for solving technical problems includes an upper splint, a lower splint, a fastener and a flexible seal. One end of the fastener is connected to the lower splint. The other end of the fastener is connected to the upper splint, the flexible seal is installed between the upper splint and the lower splint, the rotation of the fastener can squeeze the flexible seal through the upper splint and the lower splint and make the flexible seal Bulge outward. The utility model can adapt to the requirements of cable ducts with different diameters, can be reused, is convenient to use, and improves work efficiency.

Description

A waterproof and flame-retardant cable plastic sealing plug

technical field

The utility model belongs to the technical field of cable duct sealing, in particular to a waterproof and flame-retardant cable plastic sealing plug.

Background technique

At present, three types of plugging devices are used for cable ducts: fireproof mud, cement, and inflatable plugging.

In the process of cement plugging, cement and yellow sand need to be mixed on the spot, and the amount needs to be controlled. Too little plugging effect is not good, and too much is easy to completely block the spare hole, which is not conducive to the later use of the spare hole. And it is not suitable for sealing the cable duct with too large hole, and it cannot be reused.

Fireproof mud plugging has relatively high weather and temperature requirements. If the temperature is too low, fireproof mud cannot be fully softened, and the surface is completely blocked. After a period of time, various cracks are prone to appear after hardening. If the temperature is too high, the fireproof mud is easy to soften and cannot play a good sealing effect, so it is not suitable for sealing outdoor lines. And it is not suitable for sealing cable ducts with too large holes, and cannot be reused.

Compared with the above two types of plugging, the inflatable plugging has improved, but it is inconvenient to use. It is necessary to carry an inflatable bottle and place it above the cable shaft to inflate the inflatable plugging in the cable shaft. The operation process is too cumbersome and requires the cooperation of multiple people. If the operating conditions are too poor, there may even be a risk of the gas cylinder falling into the cable shaft and causing casualties. And the hole of the cable duct is too small, the plugging effect is not good, and it cannot be reused.

Utility model content

The purpose of the utility model is to provide a waterproof and flame-retardant cable plastic sealing plug, which can meet the requirements of cable ducts with different diameters, is reusable, easy to use, and improves work efficiency.

The utility model provides a waterproof and flame-retardant cable plastic sealing plug. The technical solution for solving technical problems includes an upper splint, a lower splint, a fastener and a flexible seal. One end of the fastener is connected to the lower splint. The other end of the fastener is connected to the upper splint, the flexible seal is installed between the upper splint and the lower splint, the rotation of the fastener can squeeze the flexible seal through the upper splint and the lower splint and make the flexible seal Bulge outward.

Preferably, the joints between the upper splint and the fastener and between the lower splint and the fastener are all sealed.

Preferably, one end of the fastener is screwed to the lower splint.

Preferably, the upper splint is set on the fastener.

Preferably, the end surface of the lower splint is provided with an inner connecting cylinder, and one end of the fastener is inserted into the connecting cylinder and threadedly connected with the connecting cylinder.

Preferably, the inner end surface of the upper clamping plate is provided with a first positioning surface that fits the end surface of the flexible sealing ring, and the inner end surface of the upper clamping plate is provided with a first annular boss located inside the first positioning surface.

Preferably, the inner end surface of the lower clamping plate is provided with a second positioning surface that fits the end surface of the flexible sealing ring, and the inner end surface of the lower clamping plate is provided with a second annular boss located inside the second positioning surface.

Preferably, a counterbore is provided on the outer end surface of the upper splint, and a step buried in the counterbore is provided on the fastener.

Preferably, the upper splint has a larger area than the lower splint, and a ring is formed at one end of the fastener.

Preferably, the flexible sealing member is a cylindrical structure.

To sum up, using the technical solution of the utility model solves the limitations of the original plugging device on the environment and the size of the pipeline, the waste caused by non-recyclable use, and the low work efficiency are improved. The utility model is suitable for various cable ducts of different sizes, and can be used for many times. The operation is simple, and one worker can complete it independently without relying on other equipment, greatly reducing labor costs and material costs, and can adapt to any working environment.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings that need to be used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings in the following description are only some implementations of the present invention. For example, those of ordinary skill in the art can also obtain other drawings based on these drawings on the premise of not paying creative efforts.

Fig. 1 is a schematic sectional view of the utility model in use;

Fig. 2 is the overall structure diagram of the utility model;

Fig. 3 is an exploded view of each component of the utility model.

In the figure: 1. Upper splint; 2. Lower splint; 3. Fastener; 4. Flexible seal; 5. Connecting cylinder; 6. First positioning surface; 7. First annular boss; 8. Second positioning 9, the second annular boss; 10, the ring.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

The utility model provides a waterproof and flame-retardant cable plastic sealing plug, as shown in Figure 1-3, comprising an upper splint 1, a lower splint 2, a fastener 3 and a flexible seal 4, one end of the fastener 3 It is connected with the lower splint 2, the other end of the fastener 3 is connected with the upper splint 1, the flexible seal 4 is installed between the upper splint 1 and the lower splint 2, the flexible seal 4 adopts a silicone structure and is a cylinder structure, in specific use, the two ends of the flexible seal 4 are in contact with the upper splint 1 and the lower splint 2 respectively, and the rotation of the fastener 3 can squeeze the flexible seal 4 through the upper splint 1 and the lower splint 2 and make the flexible seal Part 4 bulges outward under its own elastic characteristics, so that the flexible sealing ring can press against the inner wall of the cable duct through the bulged and expanded part, thereby realizing the sealing of the cable duct and achieving the isolation and sealing effect of the inner and outer sides of the duct. The joints between the upper splint 1 and the fastener 3 and between the lower splint 2 and the fastener 3 are all sealed.

In this application, the rotation of the fastener 3 can realize the extrusion effect of the upper splint 1 and the lower splint 2. One of the embodiments is that one end of the fastener 3 is screwed to the lower splint 2, and the upper splint 1 is set on the fastener. 3, so that when the fastener 3 is rotated, the upper clamping plate 1 and the lower clamping plate 2 will be driven close to each other under the action of the thread locking force, thereby achieving the extrusion effect on the flexible sealing member 4.

Wherein the end surface of the lower splint 2 is provided with a connecting cylinder 5 located inside, one end of the fastener 3 is inserted into the connecting cylinder 5 and is threadedly connected with the connecting cylinder 5, and one end of the fastener 3 is hidden in the connecting cylinder 5, Improved overall appearance.

In order to avoid the excessive deformation of the flexible sealing member 4 during the extrusion process of the flexible sealing member 4 and make it unusable, the inner end surface of the upper splint 1 is provided with a first positioning surface 6 that fits the end surface of the flexible sealing ring. The inner end surface of the clamping plate 1 is provided with a first annular boss 7 located inside the first positioning surface 6, and the inner end surface of the lower clamping plate 2 is provided with a second positioning surface 8 that fits the end surface of the flexible sealing ring. The lower clamping plate The inner side end surface of 2 is provided with the second annular boss 9 that is positioned at the inner side of second positioning surface 8; To achieve the blocking effect, it can bulge and expand in the middle during the extrusion process to achieve a better sealing effect.

In the present application, a counterbore is provided on the outer end surface of the upper splint 1, and the fastener 3 is provided with a step buried in the counterbore, and the fastener 3 can drive the upper splint 1 to move together through the step, and at the same time, the embedded The structural design can improve the overall appearance.

In this application, the area of the upper splint 1 is larger than that of the lower splint 2. In actual use, one end of the lower splint 2 is inserted into the cable duct, the upper splint 1 is located outside the duct, and one end surface of the upper splint 1 can be attached to the end surface of the duct. , to achieve a better sealing effect, and one end of the fastener 3 is formed with a ring 10, which can facilitate the rotation of the fastener 3 and save effort in operation.

When this application is used in practice, it is first necessary to wipe off the cable duct that needs to be blocked, then insert one end of the lower clamping plate 2 of the sealing plug into the interior of the pipeline, and make the upper clamping plate 1 fit the end face of the pipeline, and screw the fastener 3 to make it flexible. The sealing member 4 expands and tightens against the inner wall of the pipeline to realize the sealing effect.

In addition, with the rapid development of my country's economy and the gradual improvement of infrastructure in various places, higher standards and requirements are required for the construction and maintenance efficiency of underground pipelines. In the past, most of the protective pipes for underground power and communication were made of plastic, existing glass fiber, cement and other materials, and they were pre-buried in underground trenches dug in advance, and artificial wells were set up according to standard distances for wiring, inspection, emergency repair, and maintenance. Waiting for the construction work point. The main body of the artificial well is made of bricks and cement structure, and each artificial well is connected by pre-buried pipelines. If the waterproof seal of the pipeline is not handled properly, water seepage, water accumulation, silt, and rats and other animals will appear in the pipeline over time, which will affect the safety of the prepared cable tube and construction maintenance, and even cause severe damage. The preparatory pipeline was not cleaned up, resulting in accidents such as power interruption or signal interruption of the cables laid later. At the same time, because the pipelines are connected, the accumulated water in the pipelines flows along the terrain, and it takes a lot of time to pump water before maintenance, which greatly hinders the speed of emergency repairs. If it is possible to pump water in sections, it will undoubtedly greatly increase the speed of emergency repairs.

This application is an innovative mechanical seal structure that can be used repeatedly, disassembled, and can be used to seal and waterproof the spare cable ducts, while preventing silt, sundries and small animals from entering the ducts and affecting the use of the prepared ducts. In specific use, the cable well can be blocked in sections, which is convenient for pumping maintenance and laying of pipelines and cables in the later stage. At the same time, the style is uniform, the appearance is clean and beautiful, and the operation is simple.

The above is a preferred embodiment of the present utility model, it should be pointed out that for those of ordinary skill in the art, without departing from the principle of the present utility model, some improvements and modifications can also be made, these improvements and modifications It is also regarded as the protection scope of the present utility model.

Claims (10)

1. The waterproof and flame-retardant cable plastic sealing plug is characterized by comprising an upper clamping plate, a lower clamping plate, a fastener and a flexible sealing element, wherein one end of the fastener is connected with the lower clamping plate, the other end of the fastener is connected with the upper clamping plate, the flexible sealing element is arranged between the upper clamping plate and the lower clamping plate, and the flexible sealing element can be extruded and expanded outwards through the upper clamping plate and the lower clamping plate by the rotation of the fastener.

2. The waterproof and flame retardant cable plastic sealing plug of claim 1, wherein the connection parts between the upper clamping plate and the fastener and between the lower clamping plate and the fastener are sealed.

3. The waterproof and flame retardant cable plastic sealing plug of claim 1, wherein one end of the fastener is in threaded connection with the lower clamping plate.

4. The waterproof flame retardant cable plastic sealing plug of claim 1 wherein said upper clamping plate is sleeved on the fastener.

5. The waterproof and flame-retardant cable plastic sealing plug as claimed in claim 3, wherein a connecting cylinder is arranged on the inner side of the end face of the lower clamping plate, and one end of the fastening piece is inserted into the connecting cylinder and is in threaded connection with the connecting cylinder.

6. The waterproof and flame-retardant cable plastic sealing plug as claimed in claim 1, wherein a first positioning surface attached to one end surface of the flexible sealing ring is arranged on the end surface of the inner side of the upper clamping plate, and a first annular boss located on the inner side of the first positioning surface is arranged on the end surface of the inner side of the upper clamping plate.

7. The waterproof and flame-retardant cable plastic sealing plug as claimed in claim 1, wherein a second positioning surface attached to one end surface of the flexible sealing ring is arranged on the end surface of the inner side of the lower clamping plate, and a second annular boss located on the inner side of the second positioning surface is arranged on the end surface of the inner side of the lower clamping plate.

8. The waterproof flame-retardant cable plastic sealing plug as claimed in claim 1, wherein a counter bore is formed in the outer side end face of the upper clamping plate, and a step buried in the counter bore is formed in the fastening piece.

9. The waterproof and flame-retardant cable plastic sealing plug as claimed in claim 1, wherein the upper clamping plate is larger than the lower clamping plate in area, and a circular ring is formed at one end of the fastener.

10. The waterproof flame retardant cable plastic sealing plug of claim 1 wherein said flexible sealing member is of a cylindrical construction.

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