Wall bushing with insulating grommet

Abstract

The utility model relates to a wall bushing technical field, concretely is a kind of wall bushing with insulating protective pad, including bushing body.This one wall bushing with insulating protective pad, when cable or pipeline needs to pass through wall bushing, it is from second insulating protective pad inner wall and enters.This time, since installation port is connected with ventilation room, with the rise of air pressure in ventilation room, elastic air bag will gradually expand, and tightly wrap the cable passing from all directions.This wrapping mode is different from rigid fixing, it has certain elasticity, can firmly fix cable, prevent cable from loosening, displacement due to external force in bushing, influence electrical transmission, and will not cause damage to cable skin because of excessive extrusion.

Description

Technical Field

[0001] This utility model relates to the field of wall bushing technology, specifically a wall bushing with an insulating pad. Background Technology

[0002] Wall bushings, also known as wall-penetrating pipes, waterproof sleeves, or wall-embedded pipes, are divided into rigid and flexible waterproof sleeves. In the electrical industry, those used for conducting electricity are called AC wall bushings. Based on material, they can be divided into dry-type capacitor-type AC wall bushings and porcelain-insulated AC wall bushings, abbreviated as silicone rubber bushings and porcelain bushings, respectively.

[0003] Traditional wall bushings have fixed dimensions, which cannot be properly fixed according to the size of the cables or other objects that need to be passed through. This can easily cause the cables or other objects to shake and wear. To address this, we have proposed a wall bushing with an insulating pad. Utility Model Content

[0004] The purpose of this utility model is to provide a through-wall sleeve with an insulating pad to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A through-wall sleeve with an insulating pad includes a sleeve body, wherein a protective fixing mechanism is provided inside the sleeve body;

[0007] The protective fixing mechanism includes a first insulating pad, an inflation tube, a one-way valve, an air supply tube, a second insulating pad, a ventilation chamber, and an installation port. The first insulating pad is fixedly installed inside the sleeve body. An inflation tube is fixedly installed at one end of the first insulating pad. A one-way valve is fixedly installed in the middle of the inflation tube. An air supply tube is fixedly installed inside the first insulating pad and is connected to the inflation tube. A second insulating pad is fixedly installed inside the first insulating pad. A ventilation chamber is formed between the second insulating pad and the first insulating pad and is connected to the air supply tube. An installation port is provided on the inner wall of the second insulating pad.

[0008] The installation port and the ventilation port are connected. An elastic airbag is fixedly installed on the outside of the installation port, and a waterproof layer is fixedly installed on the outer surface of the elastic airbag.

[0009] The outer surface of the waterproof layer is fixedly provided with a wear-resistant layer, and the two sides of the sleeve body are provided with first slots.

[0010] The sleeve body has a first protective frame on one side, and a first insert block is fixedly installed on one side of the first protective frame.

[0011] The first insertion block and the first slot are matched, and a second protective frame is provided on the other side of the sleeve body.

[0012] The second protective frame has a first insert block fixedly installed on one side, and a second slot is provided at the top and bottom of one side of the second protective frame.

[0013] The first protective frame has a second insert block fixedly installed at both the top and bottom ends on one side. The second insert block matches the second slot, and the interior of the second insulating pad forms an installation space.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. This type of wall bushing with an insulating pad allows cables or pipes to pass through it by inserting them through the inner wall of the second insulating pad. Since the installation port is connected to a ventilation room, the elastic airbag gradually expands as the air pressure inside the ventilation room increases, tightly wrapping the passing cable from all directions. This wrapping method differs from rigid fixing; it has a certain degree of elasticity, firmly securing the cable and preventing it from loosening or shifting inside the bushing due to external forces, thus affecting electrical transmission. It also avoids damage to the cable sheath due to excessive compression. The waterproof layer outside the elastic airbag is made of a special waterproof material, forming a strong barrier that isolates external moisture and humidity, preventing a decrease in the insulation performance of the bushing due to a humid environment. The wear-resistant layer outside the waterproof layer is made of high-strength wear-resistant material, effectively resisting friction caused by equipment vibration during long-term use, protecting the cable and the internal structure of the bushing, greatly extending the service life of the equipment, and reducing maintenance costs and frequency.

[0016] 2. This type of wall bushing with an insulating pad, during installation, firstly, aligns the first insert on the first protective frame with the first slot on one side of the bushing body and inserts it forcefully, initially fixing the first protective frame to the bushing and providing a basic support framework for the entire bushing. Next, inserts the first insert on one side of the second protective frame into the first slot on the other side of the bushing body, completing the initial connection between the second protective frame and the bushing. Then, precisely inserts the second inserts at both ends of one side of the first protective frame into the corresponding second slots on the second protective frame. Through this bidirectional nesting, a stable locking structure is formed. This modular installation design ensures a tight and secure connection between the components, facilitating quick and convenient assembly by construction personnel on-site, ensuring the wall bushing maintains a stable structure, and guaranteeing its normal operation and the safety of electrical transmission. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the internal structure of the sleeve body of this utility model;

[0019] Figure 3 This is a partial structural diagram of the elastic airbag of this utility model;

[0020] Figure 4 This utility model Figure 1 Enlarged diagram of point A in the middle.

[0021] In the diagram: 1. Sleeve body; 2. First insulating pad; 3. Inflation pipe; 4. One-way valve; 5. Gas supply pipe; 6. Second insulating pad; 7. Ventilation chamber; 8. Installation port; 9. Elastic airbag; 10. Waterproof layer; 11. Wear-resistant layer; 12. First slot; 13. First protective frame; 14. First insert block; 15. Second protective frame; 16. Second slot; 17. Second insert block; 18. Installation chamber. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figure 1 - Figure 4 As shown, this utility model provides a technical solution:

[0024] A through-wall sleeve with an insulating pad includes a sleeve body 1, and a protective fixing mechanism is provided inside the sleeve body 1.

[0025] The protective fixing mechanism includes a first insulating pad 2, an inflation pipe 3, a one-way valve 4, an air supply pipe 5, a second insulating pad 6, a ventilation chamber 7, and an installation port 8. The first insulating pad 2 is fixedly installed inside the sleeve body 1. An inflation pipe 3 is fixedly installed at one end of the first insulating pad 2. A one-way valve 4 is fixedly installed in the middle of the inflation pipe 3. An air supply pipe 5 is fixedly installed inside the first insulating pad 2 and is connected to the inflation pipe 3. A second insulating pad 6 is fixedly installed inside the first insulating pad 2. A ventilation chamber 7 is formed between the second insulating pad 6 and the first insulating pad 2 and is connected to the air supply pipe 5. An installation port 8 is opened on the inner wall of the second insulating pad 6.

[0026] With the above scheme, when a cable or conduit needs to pass through a wall bushing, it is inserted through the inner wall of the second insulating pad 6. At this time, since the installation port 8 is connected to the ventilation room 7, as the air pressure inside the ventilation room 7 increases, the elastic airbag 9 will gradually expand, tightly wrapping the passing cable from all directions. This wrapping method is different from rigid fixing; it has a certain degree of elasticity, which can firmly fix the cable, preventing it from loosening or shifting inside the bushing due to external forces, thus affecting electrical transmission; and it will not damage the cable sheath due to excessive compression. The waterproof layer 10 outside the elastic airbag 9 is made of a special waterproof material, which can form a strong barrier to isolate external water vapor and moisture, preventing the insulation performance inside the bushing from deteriorating due to a humid environment. The wear-resistant layer 11 outside the waterproof layer 10 is made of high-strength wear-resistant material, which can effectively resist the friction caused by equipment vibration and other reasons during long-term use of the cable, protecting the cable and the internal structure of the bushing, greatly extending the service life of the equipment, and reducing maintenance costs and frequency.

[0027] The installation port 8 and the ventilation room 7 are connected. An elastic airbag 9 is fixedly installed on the outside of the installation port 8, and a waterproof layer 10 is fixedly installed on the outer surface of the elastic airbag 9.

[0028] The outer surface of the waterproof layer 10 is fixedly provided with a wear-resistant layer 11, and the two sides of the sleeve body 1 are provided with first slots 12.

[0029] The sleeve body 1 has a first protective frame 13 on one side, and a first insert block 14 is fixedly installed on one side of the first protective frame 13.

[0030] The first insertion block 14 and the first slot 12 are matched, and a second protective frame 15 is provided on the other side of the sleeve body 1.

[0031] The second protective frame 15 has a first insert block 14 fixedly installed on one side, and a second slot 16 is provided at the upper and lower ends of one side of the second protective frame 15.

[0032] Among them, the first protective frame 13 has a second insert 17 fixedly installed at both the upper and lower ends on one side. The second insert 17 matches the second slot 16, and the interior of the second insulating pad 6 forms an installation space 18.

[0033] With the above scheme, when installing the through-wall bushing, firstly, align the first insert 14 on the first protective frame 13 with the first slot 12 on one side of the bushing body 1 and insert it forcefully to initially fix the first protective frame 13 to the bushing, providing a basic support frame for the entire bushing. Next, insert the first insert 14 on one side of the second protective frame 15 into the first slot 12 on the other side of the bushing body 1, completing the initial connection between the second protective frame 15 and the bushing. At this time, precisely insert the second inserts 17 at both ends of one side of the first protective frame 13 into the corresponding second slots 16 of the second protective frame 15. Through this bidirectional nesting, a stable locking structure is formed. This modular installation design ensures a tight and secure connection between the various components, facilitating quick and convenient assembly by construction personnel on site, ensuring that the through-wall bushing always maintains a stable structure, and guaranteeing its normal operation and the safety of electrical transmission.

[0034] In this embodiment, when using a wall bushing with an insulating pad, firstly, during installation, the first insert 14 on the first protective frame 13 is aligned with the first slot 12 on one side of the bushing body 1 and forcefully inserted to initially fix the first protective frame 13 to the bushing, providing a basic support frame for the entire bushing. Next, the first insert 14 on one side of the second protective frame 15 is inserted into the first slot 12 on the other side of the bushing body 1, completing the initial connection between the second protective frame 15 and the bushing. Then, the second inserts 17 at both ends of one side of the first protective frame 13 are precisely embedded into the corresponding second slots 16 on the second protective frame 15. This bidirectional nesting creates a stable locking structure. When a cable or pipe needs to pass through the wall bushing, it is inserted through the inner wall of the second insulating pad 6. Since the installation port 8 is connected to the ventilation room 7, the operator uses a professional inflation device connected to the inflation pipe 3 to inject gas into the bushing. Because a one-way valve 4 is installed in the middle of the inflation pipe 3, gas can only flow along the inflation pipe 3 towards the gas delivery pipe 5, preventing gas backflow and resulting in unstable gas pressure. After the gas enters the ventilation chamber 7 between the first insulating pad 2 and the second insulating pad 6 through the gas delivery pipe 5, the gas pressure in the ventilation chamber 7 increases as gas is continuously injected, causing the elastic airbag 9 to gradually expand and tightly wrap around the cable passing through from all directions. This wrapping method differs from rigid fixing; it has a certain degree of elasticity, which can firmly fix the cable, preventing it from loosening or shifting inside the sleeve due to external forces, thus affecting electrical transmission; and it will not damage the cable sheath due to excessive compression. The waterproof layer 10 outside the elastic airbag 9 is made of a special waterproof material, which can form a strong barrier to isolate external water vapor and moisture, preventing the insulation performance inside the sleeve from deteriorating due to a humid environment. The wear-resistant layer 11 on the outside of the waterproof layer 10 is made of high-strength wear-resistant material, which can effectively resist the friction caused by equipment vibration and other reasons during long-term use of the cable, protect the cable and the internal structure of the sleeve, greatly extend the service life of the equipment, and reduce maintenance costs and frequency.

[0035] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A through-wall bushing with an insulating gasket, comprising a bushing body (1), characterized in that: The sleeve body (1) is provided with a protective fixing mechanism inside; The protective fixing mechanism includes a first insulating pad (2), an inflation pipe (3), a one-way valve (4), an air supply pipe (5), a second insulating pad (6), a ventilation chamber (7), and an installation port (8). The first insulating pad (2) is fixedly installed inside the sleeve body (1). An inflation pipe (3) is fixedly installed at one end of the first insulating pad (2). A one-way valve (4) is fixedly installed in the middle of the inflation pipe (3). An air supply pipe (5) is fixedly installed inside the first insulating pad (2). The air supply pipe (5) and the inflation pipe (3) are connected. The second insulating pad (6) is fixedly installed inside the first insulating pad (2). A ventilation chamber (7) is formed between the second insulating pad (6) and the first insulating pad (2). The ventilation chamber (7) is connected to the air supply pipe (5). An installation port (8) is opened on the inner wall of the second insulating pad (6).

2. A wall bushing with an insulating gasket according to claim 1, characterized in that: The mounting port (8) and the ventilation chamber (7) are connected. An elastic airbag (9) is fixedly installed on the outside of the mounting port (8), and a waterproof layer (10) is fixedly installed on the outer surface of the elastic airbag (9).

3. A wall bushing with an insulating gasket according to claim 2, characterized in that: The outer surface of the waterproof layer (10) is fixedly provided with a wear-resistant layer (11), and the two sides of the sleeve body (1) are provided with first slots (12).

4. A wall bushing with an insulating gasket according to claim 3, characterized in that: A first protective frame (13) is provided on one side of the sleeve body (1), and a first insert block (14) is fixedly provided on one side of the first protective frame (13).

5. A wall bushing with an insulating gasket according to claim 4, characterized in that: The first insert (14) and the first slot (12) are matched, and a second protective frame (15) is provided on the other side of the sleeve body (1).

6. A wall bushing with an insulating gasket according to claim 5, characterized in that: A first insert (14) is fixedly provided on one side of the second protective frame (15), and a second slot (16) is provided at the upper and lower ends of one side of the second protective frame (15).

7. A wall bushing with an insulating gasket according to claim 6, characterized in that: The first protective frame (13) has a second insert (17) fixedly installed at both the upper and lower ends on one side. The second insert (17) matches the second slot (16), and the interior of the second insulating pad (6) forms an installation space (18).

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