Leakage-proof water-blocking through-wall wiring device

Abstract

The utility model relates to a leakage-proof water-blocking through-wall wiring device, which comprises two waterproof clamping plates and a long-axis bolt, wherein a connecting hole is formed in the center of each waterproof clamping plate; a long-axis bolt penetrates through the connecting hole in the center of one waterproof clamping plate, the through-wall hole of the wall body and the two ends of the connecting hole in the center of the other waterproof clamping plate, and the inner side disc faces of the waterproof clamping plates are compacted on the wall face through nuts; a patch board is arranged in an inner area and an outer area around a center hole of the waterproof clamping plate, a plurality of binding posts are distributed on the patch board and penetrate through the patch board, only binding posts are reserved on the inner side and the outer side of the waterproof clamping plate, a protective cover is arranged outside the waterproof clamping plate, and a cable threading hole is formed in the protective cover. According to the utility model, the requirements of leakage prevention and water resistance can be met, and the construction amount can be reduced.

Description

Technical Field

[0001] The utility model relates to a wiring device, in particular to a leak-proof and water-blocking wall-penetrating wiring device, which can be used for wiring through holes opened on the walls of underground instrument wells and underground pump rooms in the field of engineering construction. Background Art

[0002] At the construction site, underground pump rooms or instrument wells need to connect various power lines or signal lines from outside the well. Outdoor cables are buried and laid to the well wall. Usually, a wall-punched casing threading wiring mode is adopted. This wiring mode uses a hole in the wall or a pre-buried threading tube. After the cable passes through the wall, there is always a gap between the cable and the casing or wall hole, which will cause outdoor rainwater and accumulated water to enter the room through the threading hole, causing indoor water accumulation. If the drainage is not timely or the drainage conditions are not met, the electromechanical equipment or electrical facilities will be immersed in water, causing short circuit damage and equipment corrosion, which will bring great losses to production and operation. The existing threading hole plugging specifications and technical measures are all for solving fire prevention needs, and there is no targeted solution for waterproofing needs. The commonly used method in engineering is to directly plug the gap between the cable and the threading hole at both ends of the hole with fireproof mud and other materials, but after plugging, due to the solidification and shrinkage of the plugging material or the replacement of the cable and re-plugging, there is still a problem of leakage. The problem of wall threading hole leakage has been a long-term problem that has not been solved at the construction site.

[0003] The technical measures for plugging the threading holes in the prior art are only to apply directly to the gaps at both ends of the holes, which cannot meet the requirements of leak prevention and water blocking. The main problems are as follows:

[0004] 1) Cable disturbance will create a gap between the cable and the sealing material, destroying the sealing; 2) When replacing the cable, the original sealing material needs to be removed for secondary sealing; 3) If more wiring cables need to be added later, the original sealing material needs to be removed; 4) After the sealing material solidifies, due to the different thermal expansion coefficients of the wall and the material, a gap will appear between the sealing material and the wall, causing water leakage. Utility Model Content

[0005] The purpose of the utility model is to overcome the above purpose and provide a leak-proof and water-blocking wall wiring device, which can not only meet the needs of leak-proof and water-blocking, but also reduce the construction workload.

[0006] The solution adopted by the utility model to solve its technical problems is:

[0007] A leak-proof and water-blocking through-the-wall wiring device comprises two waterproof plywoods and a long-axis bolt. A connecting hole is arranged in the center of the waterproof plywood. The long-axis bolt passes through the connecting hole in the center of one waterproof plywood, the through-the-wall hole of the wall and the connecting hole in the center of the other waterproof plywood, and is fixed at both ends by nuts to press the inner disk surface of the waterproof plywood onto the wall. There are wiring disks in the inner and outer areas around the center hole of the waterproof plywood, and a plurality of wiring posts are distributed on the wiring disks. The wiring posts pass through the wiring disks, and only wiring terminals are left on the inner and outer sides of the waterproof plywood. A protective cover is arranged outside the waterproof plywood, and a cable threading hole is arranged on the lower side of the protective cover.

[0008] The waterproof splint is in the shape of a disc or a bowl.

[0009] The disk surface of the waterproof clamping plate contacting the wall surface is provided with a groove surrounded by a plurality of circular protrusions with the central hole of the waterproof clamping plate as the center, and the sealing material is applied in the groove.

[0010] There is a water stop ring in the middle of the terminal, and preferably each terminal has two water stop rings, which not only stop water but also play a fixing role.

[0011] The wiring panel is divided into an inner panel surface and an outer panel surface in the wiring area around the central hole of the waterproof clamping plate, and the wiring panel and the waterproof clamping plate are integrated.

[0012] The inner side of the nut on the long-axis bolt is lined with a waterproof gasket, preferably a rubber gasket.

[0013] The protective cover is circular and is arranged outside the portion of the waterproof clamping plate with the wiring disk in the center. Preferably, the protective cover is stuck in a groove provided on the outside of the waterproof clamping plate.

[0014] The binding posts are spaced or isolated from each other.

[0015] The beneficial effects of the utility model are:

[0016] (1) The utility model utilizes the tightening and pulling effect of the long-axis bolts to press the inner disk surface of the waterproof plywood onto the wall surface, thereby playing a water-blocking role. The wiring posts are provided with wiring terminals. The wiring of the waterproof plywood inside the wall is connected by wires. The cables inside the wall are isolated from the external cables, completely blocking the passages inside and outside the wall at the threading holes. The accumulated water cannot enter or exit through the threading holes, thereby playing a water-blocking role. The protective cover is stuck on the waterproof plywood to prevent mud and sand and leakage for the external wiring posts.

[0017] (2) The utility model can adjust the number of molten wire terminals at the wiring board according to the number of wire cores in the construction, so as to produce waterproof plywood of different specifications, which can meet the wiring of cables of different numbers and specifications, and is both waterproof and easy to expand;

[0018] (3) When using this device to replace cables, only the cables on the inside and outside need to be replaced without removing the wall-penetrating wiring device. This not only facilitates maintenance but also reduces the need for secondary waterproof sealing, ensures the stability of the original waterproof measures, and reduces construction workload and construction costs.

[0019] (4) Waterproof gaskets and water stop rings are installed to prevent water from entering the device through the gaps on the contact surface. The sealing materials used in the grooves on the inner disk surface can further play a water-blocking role. Various water-blocking materials such as fireproof mud, cement mortar, sealant, silicone glue, etc. can be used. They have a wide range of applications, are highly tolerant of sealing materials, and are easy to purchase and construct. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the structure of the utility model device;

[0021] Figure 2 This is an AA view of the device of the utility model;

[0022] Figure 3 yes Figure 2 A partial enlarged view of the vertical section of the center wiring panel.

[0023] In the figure, 1. waterproof splint, 2. protective cover, 3. nut, 4. long axis bolt, 5. waterproof gasket, 6. connecting wire, 7. sealing material, 8. terminal, 9. water stop ring, 10. cable threading hole, 11. terminal board. DETAILED DESCRIPTION

[0024] The present invention is described in detail below with reference to the accompanying drawings and specific embodiments.

[0025] Example 1

[0026] A leakproof and water-blocking through-the-wall wiring device comprises two waterproof plywoods 1 and a long-axis bolt 4. A connecting hole is provided at the center of the waterproof plywood 1. The long-axis bolt 4 passes through the connecting hole at the center of one waterproof plywood 1, the through-the-wall hole of the wall and the connecting hole at the center of the other waterproof plywood, and is fixed at both ends by nuts 3 to press the inner disk surface of the waterproof plywood 1 onto the wall. A wiring disk 11 is provided in the inner and outer areas around the center hole of the waterproof plywood 1. The wiring disk 11 and the waterproof plywood 1 are an integral whole. A plurality of wiring posts 8 are distributed on the wiring disk 11. The wiring posts 8 pass through the wiring disk 11. Only wiring terminals are left on the inner and outer sides of the waterproof plywood 1. A protective cover 2 is provided on the outside of the waterproof plywood 1, and a cable threading hole 10 is provided on the lower side of the protective cover 2.

[0027] The waterproof plywood 1 is in the shape of a round bowl and is made of PE plastic; the long-axis bolt 4 is cylindrical, threaded at both ends, and made of PE plastic. The two waterproof plywoods 1 are connected and fixed on the inner and outer wall surfaces through the long-axis bolts 4. The inner surface of the waterproof plywood 1 is cast with a groove surrounded by a plurality of circular protrusions with the center hole of the waterproof plywood as the center of the circle, with a total of three grooves. The hole in the center of the waterproof plywood 1 is the center hole, and the diameter of the hole is two millimeters larger than the outer diameter of the long-axis bolt 4, so that the long-axis bolt 4 can pass through the inside of the hole. There are evenly distributed terminal posts 8 around the center hole of the waterproof plywood 1. The terminal posts 8 are provided with two water stop rings 9. The water stop rings 9 also play a fixing role to prevent the terminal posts 8 from loosening due to the pulling force when the wiring nuts are tightened. The terminal posts 8 are cast in a circular evenly arranged manner on the wiring plate 11 with the center hole as the center of the circle, penetrating the inner and outer disk surfaces of the waterproof plywood 1, and the wiring terminals are exposed at both ends for wiring. The outermost top of the waterproof plywood 1 is designed with a protective cover 2, which is made of polyethylene plastic and has a cylindrical shape. The lower end of the protective cover 2 has a cable threading hole 10 for threading, and the protective cover 2 is directly stuck in the groove on the outer surface of the waterproof plywood 1. The wiring of the waterproof plywood 1 inside the wall is connected with a connecting wire 6, and the cables inside the wall are isolated from the external cables, which plays a role in water blocking. After the long-axis bolt 4 penetrates the two waterproof plywood inside and outside the wall, it is fastened with a nut 3, and a waterproof gasket 5 is placed on the inside of the nut 3. The material of the terminal 8 is copper metal, cylindrical, and has external thread at both ends. The cylindrical diameter design specification of the terminal in this device is φ4mm, which is suitable for weak-current line connections with a rated current of less than 5A. [Note: Current signals above 5A involve more stringent electrical safety protection measures and manufacturing processes. If this device is to be used, the isolation measures between the terminals need to be optimized. ]

[0028] Example 2

[0029] A leakproof and water-blocking through-the-wall wiring device comprises a pair of waterproof plywood 1 and a long-axis bolt 4. The waterproof plywood 1 has a connecting hole in the center. The long-axis bolt 4 passes through the connecting hole in the center of the waterproof plywood 1 on one side, the through-the-wall hole of the wall and the connecting hole in the center of the waterproof plywood 1 on the other side, and is fixed by nuts 3 at both ends to press the inner disk surface of the waterproof plywood 1 onto the wall. A wiring disk 11 is provided in the inner and outer areas around the center hole of the waterproof plywood 1. The wiring disk 11 and the waterproof plywood 1 are an integral whole. A plurality of wiring posts 8 are distributed on the wiring disk 11. The wiring posts 8 pass through the wiring disk 11. Only wiring terminals are left on the inner and outer sides of the waterproof plywood 1. A protective cover 2 is provided on the outside of the waterproof plywood 1, and a cable threading hole 10 is provided on the lower side of the protective cover 2.

[0030] The waterproof plywood 1 is in the shape of a disk. The disk surface of the waterproof plywood 1 that contacts the wall has a groove surrounded by multiple circular protrusions with the center hole of the waterproof plywood as the center. The sealing material 7 is applied on it. Through the tightening pressure between the long-axis bolt 4 and the waterproof plywood 1, the sealing material 7 is densely filled in the gap between the groove of the waterproof plywood 1 and the wall surface to isolate the entry of external water sources. The connecting wires 6 are used to connect the terminals 8 on the waterproof plywood 1 on both sides one by one, ensuring the smooth flow of the internal circuit of the device. The terminal 8 of the waterproof plywood 1 is melted into the disk surface of the waterproof plywood 1, and the internal and external environments of the wiring part are isolated by two water stop rings 9 on the terminal 8. A waterproof gasket 5 is designed between the long-axis bolt 4 and the nut 3. The waterproof gasket 5 is made of rubber. When the nut 3 is compacted, the water source is isolated from entering the gap between the long-axis bolt 4 and the waterproof plywood 1. A protective cover 2 is designed on the outer panel of the waterproof plywood 1. The protective cover 2 is snap-fitted into the outer disk surface of the waterproof plywood 1. After the wiring is completed, fireproof mud or sealant is applied to the terminal 8 of the wiring board 11 to isolate the contact between the water source and the terminal 8. Then the protective cover 2 is snapped onto the waterproof plywood 1, and the cable threading hole is sealed with fireproof mud as a protective measure against external water entering the device.

[0031] Example 3

[0032] A leakproof and water-blocking through-the-wall wiring device comprises two waterproof plywoods 1 and a long-axis bolt. The waterproof plywood 1 has a connecting hole in the center. The long-axis bolt 4 passes through the connecting hole in the center of the waterproof plywood 1 on one side, the through-the-wall hole of the wall and the connecting hole in the center of the waterproof plywood 1 on the other side and is fixed by nuts 3 at both ends, so that the inner disk surface of the waterproof plywood 1 is pressed on the wall. There are wiring trays 11 in the inner and outer areas around the center hole of the waterproof plywood 1. The wiring tray 11 and the waterproof plywood 1 are an integral whole. A plurality of wiring posts 8 are distributed on the wiring tray 11. The wiring posts 8 pass through the wiring tray 11. Only wiring terminals are left on the inner and outer sides of the waterproof plywood 1. A protective cover 2 is provided on the outside of the waterproof plywood 1, and a cable threading hole 10 is provided on the lower side of the protective cover 2.

[0033] In order to achieve the effect of sealing and waterproofing, it can ensure the smooth progress of the threading construction and facilitate the later maintenance and replacement of cables. Before construction, according to the number of cables and the different specifications of the cable thickness, holes that meet the threading requirements are made on the wall, or the original pre-buried pipes are used to thread the wires to meet the installation requirements. The holes through the wall are opened as required, and the wall material debris in the wall hole is cleaned. Cut a section of the cable that needs to be threaded as a connecting wire 6, and the length of the connecting wire 6 is about the wall thickness + 20 cm. Connect one end of the connecting wire 6 to the terminal on the inner side of the wiring tray 11 of the waterproof plywood 1 on one side according to the fixed line sequence, tighten the wiring fastening nut, and then pass the connecting wire 6 through the wall threading hole, pull the connecting wire 6 out of the hole, and connect the other end of the connecting wire 6 to the terminal 8 of the waterproof plywood 1 on the other side according to the original fixed line sequence. Use the on-off function of the multimeter to measure whether each connecting wire 6 is connected. When measuring, measure from one end of the terminal 8 on the outer side of the waterproof plywood 1 on both sides to ensure that the line between the waterproof plywood 1 on both sides is unobstructed. Pass the long-axis bolt 4 through the center hole of one of the waterproof plywood 1, through the through-wall hole on the wall, and partially insert it into the waterproof plywood 1 on the other side of the wall. The length of the long-axis bolt 4 can be cut and adjusted according to the width of the wall. Apply the sealing material 7 evenly on the inner surface of the waterproof plywood 1 to fill the groove. Press the inner and outer wall waterproof plywood 1 on the wall in turn with the through-wall hole as the center point, and then fully insert the long-axis bolt 4 into the waterproof plywood 1, adjust the waterproof plywood 1 on both sides to keep it level. Sleeve the waterproof gasket 5 into both ends of the long-axis bolt 4 and tighten the nut 3. Connect the cables on both sides of the wall to the corresponding wiring posts 8 of the outer wiring tray 11 of the waterproof plywood 1 according to the fixed line sequence, fill the sealing material 7 around the wiring posts 8, and press firmly. Clamp the lower end opening of the protective cover 2 on the cable, clamp the protective cover 2, and perform the same operation on the other side.

[0034] The sealing material 7 used in the present invention can be selected from fireproof mud, cement mortar, sealant, silicone glue and other mud-like insulating materials. The connecting wire 6 is cut by the laying cable in the specific application, and the wiring post 8 of the selected waterproof plywood 1 is fully connected to facilitate the later expansion.

[0035] The above is a preferred implementation mode of the present invention. The description of the specific embodiment is only used to better understand the concept of the technical solution of the present invention, and the protection scope of the present invention is not limited thereto.

Claims

1. A leak-proof and water-blocking wall wiring device, characterized in that: It includes two waterproof plywoods and a long-axis bolt. There is a connecting hole in the center of the waterproof plywood. The long-axis bolt passes through the connecting hole in the center of one waterproof plywood, the through-wall hole of the wall and the connecting hole in the center of the other waterproof plywood, and is fixed at both ends by nuts to press the inner disk surface of the waterproof plywood onto the wall. There are wiring panels in the inner and outer areas around the center hole of the waterproof plywood, and a number of wiring posts are distributed on the wiring panel. The wiring posts pass through the wiring panel, and only wiring terminals are left on the inner and outer sides of the waterproof plywood. A protective cover is provided on the outside of the waterproof plywood, and there are cable threading holes on the protective cover.

2. A leak-proof and water-blocking wall wiring device according to claim 1, characterized in that: The waterproof splint is in the shape of a disc or a bowl.

3. A leak-proof and water-blocking wall wiring device according to claim 1, characterized in that: The disk surface of the waterproof clamping plate contacting the wall surface is provided with a groove surrounded by a plurality of circular protrusions with the central hole of the waterproof clamping plate as the center, and the sealing material is applied in the groove.

4. A leak-proof and water-blocking wall wiring device according to claim 1, characterized in that: A water stop ring is arranged in the middle of the terminal.

5. A leak-proof and water-blocking wall wiring device according to claim 4, characterized in that: Each terminal has two water stop rings.

6. A leak-proof and water-blocking wall-penetrating wiring device according to claim 1, characterized in that: The wiring panel is divided into an inner panel surface and an outer panel surface in the wiring area around the central hole of the waterproof clamping plate, and the wiring panel and the waterproof clamping plate are integrated.

7. A leak-proof and water-blocking wall wiring device according to claim 1, characterized in that: The inner side of the nut on the long-axis bolt is padded with a waterproof washer.

8. The leak-proof and water-blocking wall wiring device according to claim 1, characterized in that: The protective cover is circular and is arranged outside the part with the wiring plate in the center of the waterproof clamping plate.

9. A leak-proof and water-blocking wall wiring device according to claim 8, characterized in that: The protective cover is stuck in a groove provided on the outer side of the waterproof clamping plate.

10. The leak-proof and water-blocking wall wiring device according to claim 1, characterized in that: The binding posts are spaced or isolated from each other.

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