Power device cable wall penetration seal structure

Abstract

The utility model relates to a kind of electric power equipment cable wall sealing structure, including bushing, bushing inserts and inserts cable inside wall hole, one end of bushing is equipped with first support plate, the other end of first support plate is equipped with second support plate.The utility model is equipped with bushing, first support plate, grouting hole, sleeve, antiskid strip, overflow hole, first notch, threaded joint, second threaded groove and plug, bushing inserts and inserts cable inside wall hole, threaded joint is connected in second threaded groove by thread, the stability of first support plate and second support plate plugging in the both ends of wall hole is improved, grouting hole is convenient to grouting inside wall hole and overflow to bushing middle by first notch, cement will be fixed after can realize wall sealing, sleeve is sleeved between the gap between closed cable and first support plate and second support plate of cable, to avoid grout leakage, improve cement grout filling efficiency and quality.

Description

Technical Field

[0001] This utility model relates to the field of cable installation technology, specifically a wall-passing sealing structure for power equipment cables. Background Technology

[0002] The wall-penetrating sealing structure for power equipment cables is a systematic sealing device specifically designed for cables such as electric cables and optical cables to pass through walls, floors, or partitions. The core function of the wall-penetrating sealing structure is to effectively seal the penetrating holes, ensuring the fireproof, waterproof, gasproof, dustproof, small animal-proof, and electromagnetic shielding performance of buildings or equipment. At the same time, it ensures cable fixation and insulation, maintaining the integrity and safety of the original barrier of the structure. This structure is widely used in substations, data centers, industrial plants, and various buildings, and is a key link in the safe operation of power systems and building safety.

[0003] Existing wall-penetrating sealing structures for power equipment cables typically consist of the following components working together: through-hole and base: First, a regularly sized hole is drilled in the wall. Sometimes, a metal or plastic sleeve or frame is pre-embedded or installed later as a base to provide support and installation boundaries for subsequent sealing components; core sealing module: This is the key part to achieve the sealing function. It mainly uses flexible sealant and foam filling, employing flexible materials such as fireproof putty, silicone sealant, or special sealant to directly fill all gaps between the cable and the hole wall.

[0004] Existing wall-penetrating sealing structures for power equipment cables may experience shrinkage cracks at the contact surface with the concrete wall after the fireproof putty or sealant has cured, leading to separation between the cable and the wall. Furthermore, over long-term use, changes in ambient temperature and humidity, as well as the aging of the materials themselves, can cause them to lose elasticity and sealing properties, allowing moisture, dust, and even flames and smoke to penetrate. This can result in cracks at the wall penetration point and even the risk of leakage. When filling with cement grout for sealing, the cement grout can easily leak from both ends of the penetration hole, affecting the filling efficiency and quality. Utility Model Content

[0005] The technical problem to be solved by this utility model is that when using existing power equipment cable through-wall sealing structures, cement grout is easy to leak from both ends of the through hole, affecting the efficiency and quality of cement grout filling.

[0006] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: A wall-penetrating sealing structure for power equipment cables includes a sleeve, which is inserted into the wall-penetrating hole for cable insertion. A first support plate is installed at one end of the sleeve, and a second support plate is installed at the other end of the first support plate. A sleeve is coaxially installed on both the first and second support plates. The sleeve is used to fit on the outer surface of the cable. Several anti-slip strips are installed on the inner side wall of the sleeve. A grouting hole is opened on the first support plate, which penetrates the first support plate for cement grouting. An overflow hole is opened on the first support plate. Several first slots are opened on the sleeve for cement grouting to overflow into the middle of the sleeve. A threaded joint is coaxially installed on the second support plate. A second threaded groove is opened on the sleeve for threaded connection of the threaded joint. A plug is engaged inside the overflow hole.

[0007] The beneficial effects of this utility model are as follows: By providing a sleeve, a first support plate, a grouting hole, a sleeve, an anti-slip strip, an overflow hole, a first groove, a threaded joint, a second threaded groove, and a plug, the sleeve is inserted into the wall penetration hole for cable insertion, and the threaded joint is threaded into the second threaded groove, which improves the stability of the first and second support plates sealing the two ends of the wall penetration hole. Grouting is conveniently injected into the wall penetration hole through the grouting hole and overflows into the middle of the sleeve through the first groove. After the cement is fixed, the wall penetration can be sealed. The sleeve is fitted over the cable to seal the gap between the cable and the first and second support plates, thereby preventing grout leakage and improving the efficiency and quality of cement grout filling.

[0008] Based on the above technical solution, the present invention can be further improved as follows.

[0009] Furthermore, several ribs are installed on the sleeve, and the sleeve, the first support plate and the ribs are fixedly connected to form an integrated structure. Several grooves are linearly opened on the ribs to increase the contact area between the sleeve and the cement grout, thereby improving the stability of the sleeve installation in the wall penetration hole.

[0010] Furthermore, a second groove is provided on the first support plate, and a first washer is engaged inside the second groove. The first washer has several concentric annular grooves, which improves the sealing performance between the first support plate and the wall.

[0011] Furthermore, both the first support plate and the second support plate are disc-shaped, and the outer diameters of the first support plate and the second support plate are the same. Both the first support plate and the second support plate are provided with a first anti-slip groove.

[0012] Furthermore, a second washer is installed on the second support plate, and the second washer has several concentric annular grooves. A third slot is provided on the second support plate for the second washer to engage, thereby improving the sealing performance between the second support plate and the wall.

[0013] Furthermore, each sleeve is coaxially fitted with a tightening sleeve, and a second anti-slip groove is provided on the sleeve.

[0014] Furthermore, a first threaded groove is provided in the middle of the first support plate, which is connected to the inside of the sleeve and is used for the expansion sleeve thread connection.

[0015] Furthermore, a third threaded groove is provided in the middle of the second support plate, the third threaded groove passes through the threaded joint, and the threaded joint is used for the expansion sleeve thread connection.

[0016] The beneficial effects of adopting the above-mentioned further solution are as follows: by setting ribs and grooves, the ribs are fixedly connected with the sleeve to form an integral structure, thereby increasing the contact area of ​​the sleeve cement grout and improving the stability of the sleeve casting and fixing; by setting a first washer, a second washer, a second groove and a third groove, the first washer and the second washer are respectively snapped into the second groove and the third groove, and concentric circular grooves are opened on the first washer and the second washer, which improves the sealing performance of the first support plate and the second support plate against the wall. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention. Figure 1 ; Figure 2 This is a schematic diagram of the overall structure of the present invention. Figure 2 ; Figure 3 This is a schematic diagram of the integrated unfolded structure of this utility model; Figure 4 This is a schematic diagram of the unfolded structure of the first support plate of this utility model; Figure 5 This is a schematic diagram of the unfolded structure of the second support plate of this utility model; Figure 6 This is a schematic diagram of the cross-sectional structure of the sleeve of this utility model; The attached diagram lists the components represented by each number as follows: 1. Sleeve; 2. First support plate; 3. Grouting hole; 4. Sleeve; 5. Anti-slip strip; 6. Overflow hole; 7. First groove; 8. Rib; 9. Second support plate; 10. First washer; 11. Second washer; 12. Groove; 13. Expansion sleeve; 14. Threaded joint; 15. First threaded groove; 16. Second threaded groove; 17. Second groove; 18. Third threaded groove; 19. Third groove; 20. Block. Detailed Implementation

[0018] The principles and features of this utility model are described below with reference to the accompanying drawings. The examples given are only for explaining this utility model and are not intended to limit the scope of this utility model.

[0019] In the description of this application, it should be understood that the terms "upper," "lower," "front," "rear," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this application. In the description of this application, "a plurality of" means two or more, unless otherwise precisely specified.

[0020] like Figure 1-6 As shown, a wall-penetrating sealing structure for power equipment cables includes a sleeve 1, which is inserted into a wall-penetrating hole for cable insertion. A first support plate 2 is welded to one end of the sleeve 1, and a second support plate 9 is installed at the other end of the first support plate 2. Both the first support plate 2 and the second support plate 9 are disc-shaped and used to support the wall surface and seal both ends of the wall-penetrating hole. A sleeve 4 is coaxially mounted on both the first support plate 2 and the second support plate 9. The sleeve 4 is used to fit over the outer surface of the cable. The sleeve 4 is made of plastic and has a second anti-slip groove. Several anti-slip features are installed on the inner wall of the sleeve 4. The sliding strip 5 and the first support plate 2 are provided with grouting holes 3, which penetrate the first support plate 2 for cement grout injection. The first support plate 2 is also provided with overflow holes 6, which are L-shaped and penetrate the first support plate 2. When the cement grout is poured, it can overflow from the overflow holes 6, allowing operators to control the amount of cement grout poured. The overflow holes 6 can also release air from the wall penetration hole, facilitating the smooth flow of cement grout. The sleeve 1 is provided with several first slots 7, which allow cement grout to overflow into the middle of the sleeve 1. A threaded connector 14 is coaxially installed on the second support plate 9. The pipe 1 has a second threaded groove 16 for threaded connection of the threaded connector 14. A plug 20 is fitted inside the overflow hole 6. The system consists of a sleeve 1, a first support plate 2, a grouting hole 3, a sleeve 4, an anti-slip strip 5, an overflow hole 6, a first groove 7, a threaded connector 14, a second threaded groove 16, and a plug 20. The plug 20 is made of rubber and has a retaining ring coaxially mounted on it. The retaining ring secures the grouting hole 3 internally, thus achieving a seal. The sleeve 1 is inserted into the through-wall hole for cable insertion and is threaded into the second threaded groove via the threaded connector 14. In section 16, the stability of the first support plate 2 and the second support plate 9 at both ends of the through-wall hole is improved. Grouting is conveniently injected into the through-wall hole through the grouting hole 3 and overflows into the middle of the sleeve 1 through the first groove 7. After the cement is fixed, the through-wall seal can be achieved. The sleeve 4 is fitted on the cable to seal the gap between the cable and the first support plate 2 and the second support plate 9, thereby preventing grout leakage. When the grouting is completed, the plug 20 is clamped into the grouting hole 3 to improve the sealing of the cement grout filling and pouring, thereby preventing cement grout leakage at the cable through-wall connection and improving the efficiency and quality of cement grout filling.

[0021] In practical use, this utility model can also be used to cover the cable inserted inside the sleeve 1 with a plastic sleeve, and then fill the inside of the plastic sleeve with sealant, so as to prevent the outer layer of the cable from directly contacting the cement slurry. There is a certain gap between the plastic sleeve and the cable to facilitate the expansion or contraction of the cement slurry, which improves the safety of the cable passing through the sleeve 1.

[0022] like Figure 1-4 As shown, several ribs 8 are installed on the sleeve 1. The sleeve 1, the first support plate 2 and the ribs 8 are fixedly connected to form an integral structure. Several grooves 12 are linearly opened on the ribs 8. By setting the ribs 8 and the grooves 12, the contact area of ​​cement slurry in the sleeve 1 is increased, and the stability of the sleeve 1 in casting and fixing is improved.

[0023] like Figure 3-5 As shown, a second groove 17 is provided on the first support plate 2, and a first washer 10 is engaged inside the second groove 17. The first washer 10 has several concentric annular grooves, which improves the sealing performance between the first support plate 2 and the wall. The outer diameters of the first support plate 2 and the second support plate 9 are the same. Both the first support plate 2 and the second support plate 9 have first anti-slip grooves. A second washer 11 is installed on the second support plate 9. Both the first washer 10 and the second washer 11 are made of rubber and are annular in shape. The washer 11 has several concentric annular grooves, and the second support plate 9 has a third groove 19 for the second washer 11 to engage. By providing the first washer 10, the second washer 11, the second groove 17, and the third groove 19, the first washer 10 and the second washer 11 are respectively engaged with the second groove 17 and the third groove 19. The first washer 10 and the second washer 11 both have concentric circular grooves, which improves the sealing performance between the first support plate 2 and the second support plate 9 and the wall.

[0024] like Figure 3-6 As shown, each sleeve 4 is coaxially mounted with an expansion sleeve 13. The first support plate 2 has a first threaded groove 15 in the middle, which is connected to the inside of the sleeve 1. The first threaded groove 15 is used for threaded connection of the expansion sleeve 13. The second support plate 9 has a third threaded groove 18 in the middle, which passes through the threaded joint 14. The threaded joint 14 is used for threaded connection of the expansion sleeve 13.

[0025] Working principle: When using this type of power equipment cable through-wall sealing structure, the operator first opens a through-wall hole in the wall, then inserts the sleeve 1 into the through-wall hole, and then threads the threaded connector 14 into the second threaded groove 16, so that the first support plate 2 and the grouting hole 3 are supported at both ends of the through-wall hole. Then, one first support plate 2 is placed on the cable, and the cable is passed through the first support plate 2, the sleeve 1, and the second support plate 9 in sequence. Then, another first support plate 2 is placed on the cable, and the expansion sleeve 13 is threaded into the first threaded groove 15 and the third threaded groove 18 respectively, so that the expansion sleeve 13 clamps the outer surface of the cable under pressure. The anti-slip strip 5 is ring-shaped and placed on the cable. The outer surface of the cable is sealed by the sleeve 4, which seals the gap between the cable and the first support plate 2 and the second support plate 9 respectively. The first support plate 2 is rotated to adjust the overflow hole 6 to the top. The cement grouting pipe is inserted into the wall hole through the grouting hole 3 to facilitate the filling of cement grout. The filling gas can be discharged through the overflow hole 6. Some cement grout seeps into the middle of the sleeve 1 through the first groove 7, thereby improving the sealing of the sleeve 1. When the cement grout overflows from the overflow hole 6, it indicates that the cement grout filling is complete. The operator pulls out the grouting pipe and then clamps the plug 20 into the grouting hole 3 to seal it, thereby preventing the cement grout from overflowing before it solidifies and improving the sealing of the cable through the wall.

[0026] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A wall-penetrating sealing structure for power equipment cables, characterized in that: The system includes a sleeve (1), which is inserted into a through-wall hole for cable insertion. A first support plate (2) is installed at one end of the sleeve (1), and a second support plate (9) is installed at the other end. A sleeve (4) is coaxially mounted on both the first and second support plates (2 and 9). The sleeve (4) is used to fit over the outer surface of the cable. Several anti-slip strips (5) are installed on the inner wall of the sleeve (4). A grouting hole (3) is provided on the first support plate (2). 3) The first support plate (2) is used for cement grouting. The first support plate (2) is provided with an overflow hole (6). The sleeve (1) is provided with several first slots (7). The first slots (7) are used for cement grouting to overflow into the middle of the sleeve (1). The second support plate (9) is coaxially installed with a threaded joint (14). The sleeve (1) is provided with a second threaded groove (16). The second threaded groove (16) is used for threaded connection of the threaded joint (14). The overflow hole (6) is fitted with a plug (20).

2. The wall-penetrating sealing structure for power equipment cables according to claim 1, characterized in that, The sleeve (1) is equipped with several ribs (8). The sleeve (1), the first support plate (2) and the ribs (8) are fixedly connected to form an integral structure. Several grooves (12) are linearly opened on the ribs (8).

3. The wall-penetrating sealing structure for power equipment cables according to claim 2, characterized in that, The first support plate (2) has a second slot (17) inside, and a first washer (10) is engaged inside the second slot (17). The first washer (10) has several concentric annular grooves.

4. The wall-penetrating sealing structure for power equipment cables according to claim 3, characterized in that, The first support plate (2) and the second support plate (9) are both disc-shaped. The outer diameters of the first support plate (2) and the second support plate (9) are the same. The first anti-slip groove is provided on both the first support plate (2) and the second support plate (9).

5. A wall-penetrating sealing structure for power equipment cables according to claim 4, characterized in that, A second washer (11) is installed on the second support plate (9). Several concentric annular grooves are opened on the second washer (11). A third slot (19) is opened on the second support plate (9). The third slot (19) is used for the second washer (11) to be snapped in.

6. The wall-penetrating sealing structure for power equipment cables according to claim 1, characterized in that, Each sleeve (4) is coaxially fitted with a tightening sleeve (13), and a second anti-slip groove is provided on the sleeve (4).

7. The wall-penetrating sealing structure for power equipment cables according to claim 1, characterized in that, The first support plate (2) has a first threaded groove (15) in the middle. The first threaded groove (15) is connected to the inside of the sleeve (1). The first threaded groove (15) is used for the threaded connection of the expansion sleeve (13).

8. The wall-penetrating sealing structure for power equipment cables according to claim 1, characterized in that, The second support plate (9) has a third threaded groove (18) in the middle, the third threaded groove (18) passes through the threaded joint (14), and the threaded joint (14) is threaded to the tightening sleeve (13).

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