Wire threading device

Abstract

The utility model discloses a threading device, threading device includes fixed plate, first sleeve, second sleeve and sealing element. Fixed plate defines and passes through the hole, and fixed plate is used for installing in the wall body, first sleeve sets up in the through -hole, and is connected with fixed plate, second sleeve includes first section and second section, and first section and second section are connected, and first section and second sleeve are mutually sleeveed, and second section is located the axial outside of first sleeve, and first section and second section are used for passing through for cable together, sealing element is connected in first sleeve, and sealing element is used for sealing first sleeve. The threading device of the utility model can reduce the influence to the surrounding environment when constructing, and accelerates the construction period.

Description

Technical Field

[0001] This utility model relates to the field of cable laying technology, and in particular to a cable threading device. Background Technology

[0002] When laying cables in cable trenches and passing them through walls into indoor spaces such as pipe racks and tunnels, it is usually necessary to create through-holes in the walls through which the cables enter the room. Because the cables are made of plastic tubing, which is relatively soft and long, it is difficult for them to move along their own length and pass through the through-holes directly through the cable trenches outside the walls.

[0003] In related technologies, a manhole is added at the wall penetration point to facilitate cable passage. After the cable passes through the hole, a waterproof flange is used to seal the hole, and then concrete is used to plug it. However, the length of the manhole generally needs to be more than 2 meters, resulting in a large excavation area and a long construction period. Especially when connecting to pipe racks or tunnels under a roadway, it will affect traffic. Utility Model Content

[0004] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a wiring device that can reduce the impact on the surrounding environment during construction and accelerate the construction period.

[0005] In a first aspect, embodiments of the present invention provide a threading device, the threading device comprising:

[0006] The fixing plate defines the through hole and is used for installation on the wall;

[0007] The first sleeve is installed in the through hole and connected to the fixing plate;

[0008] The second sleeve includes a first section and a second section, which are connected and sleeved together. The second section is located on the axial outside of the first sleeve, and the first and second sections are used together for the cable to pass through.

[0009] A seal is connected to the first sleeve and is used to seal the first sleeve.

[0010] The threading device according to the embodiments of the present utility model has at least the following beneficial effects:

[0011] By interlocking the first section of the second sleeve with the first sleeve, and positioning the second section of the second sleeve axially outside the first sleeve, the first and second sleeves can be axially connected. This allows the cable to pass through the second sleeve from the end of the second sleeve furthest from the first, and move axially along the second sleeve to pass through the through-hole on the fixing plate. This eliminates the need for a connecting manhole at the wall penetration point, reducing the impact on the surrounding environment during construction, accelerating the construction period, and lowering costs. Furthermore, since the second sleeve extends directly from the first sleeve axially outside and covers the radially outer side of the cable, it avoids any axial gaps between the first and second sleeves, thus providing better protection for the cable and preventing damage to the cable exit structure.

[0012] According to the threading device of this utility model embodiment, the first section is sleeved on the radial inner side of the first sleeve.

[0013] According to the threading device of this utility model embodiment, a sealing space is defined between the first section and the end face of the first sleeve away from the second section, and a sealing element is disposed in the sealing space. The sealing element is used to seal the gap between the first sleeve and the cable.

[0014] According to the wiring device of this utility model embodiment, the first sleeve is inserted through the through hole on both opposite sides of the fixing plate, and the first sleeve extends out of the outside of the wall in the direction from the first section to the second section.

[0015] According to the embodiment of the present utility model, the threading device further includes a limiting structure, which cooperates with the fixing plate for limiting. The limiting structure is used to connect to the wall and restrict the movement of the fixing plate.

[0016] According to the threading device of the present utility model embodiment, the limiting structure further includes a first limiting component, the first limiting component includes a first limiting member and a second limiting member, the first limiting member and the second limiting member are respectively disposed on opposite sides of the fixing plate, and the first limiting member and the second limiting member both extend beyond at least two sides of the fixing plate, the first limiting member and the second limiting member are respectively used to connect with the steel reinforcement frame in the wall.

[0017] According to the threading device of the present utility model embodiment, the first limiting member includes at least four first limiting strips, the at least four first limiting strips are distributed in a grid, and each first limiting strip extends out of the opposite two sides of the fixing plate.

[0018] The second limiting member includes at least four second limiting strips, which are arranged in a grid pattern, and each second limiting strip extends out of the opposite two sides of the fixing plate.

[0019] According to the embodiment of the present utility model, the threading device includes a limiting structure including a second limiting component, the second limiting component including a third limiting member and a fourth limiting member, the third limiting member and the fourth limiting member are respectively disposed on opposite sides of the edge of the fixing plate, and the third limiting member and the fourth limiting member are respectively used to connect with the steel reinforcement frame in the wall.

[0020] According to an embodiment of the present invention, the threading device further includes a reinforcing structure, which connects the fixing plate and the first sleeve.

[0021] According to the embodiment of the present utility model, the threading device has a reinforcing structure including a plurality of reinforcing ribs, which surround the radial outer side of the first sleeve and connect the fixing plate and the outer side wall of the first sleeve.

[0022] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0023] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein:

[0024] Figure 1 This is a front view of the threading device according to an embodiment of the present utility model;

[0025] Figure 2 This is a cross-sectional schematic diagram of the threading device according to an embodiment of the present utility model;

[0026] Figure 3 for Figure 2 Enlarged view of part A.

[0027] Figure label:

[0028] Threading device 100;

[0029] Fixed plate 10; through hole 101; first sleeve 20; second sleeve 30; first section 31; second section 32; sealing element 40; first limiting assembly 50; first limiting strip 511; second limiting assembly 60; third limiting element 61; fourth limiting element 62; reinforcing structure 70; reinforcing rib 71;

[0030] Wall 200; steel reinforcement frame 210. Detailed Implementation

[0031] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0032] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model 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. Therefore, they should not be construed as limitations on this utility model.

[0033] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0034] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0035] In the description of this utility model, the terms "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0036] like Figure 1 and Figure 2 As shown, this utility model embodiment provides a cable threading device 100, which is used for cable threading through walls.

[0037] The cable threading device 100 includes a fixing plate 10, a first sleeve 20, a second sleeve 30, and a sealing element 40. The fixing plate 10 defines a through hole 101 and is used for mounting to a wall 200. The first sleeve 20 is disposed in the through hole 101 and connected to the fixing plate 10. The second sleeve 30 includes a first segment 31 and a second segment 32, which are connected and interlocked. The second segment 32 is located axially outside the first sleeve 20, and both segments 31 and 32 are used to allow cables to pass through. The sealing element 40 is connected to the first sleeve 20 and is used to seal the first sleeve 20 to prevent liquid from entering the room through the interior of the first sleeve 20.

[0038] In this embodiment of the invention, by connecting the first segment 31 of the second sleeve 30 and the first sleeve 20 together, and with the second segment 32 of the second sleeve 30 located axially outside the first sleeve 20, the first sleeve 20 and the second sleeve 30 can be axially connected. Thus, the cable can enter the second sleeve 30 from the end of the second segment 32 away from the first segment 31 and move axially along the second sleeve 30 to pass through the through hole 101 on the fixing plate 10. This eliminates the need for a connecting manhole at the wall penetration point, reducing the impact on the surrounding environment during construction, accelerating the construction period, and lowering costs. Simultaneously, since the second sleeve 30 extends directly from the first sleeve 20 axially outside and covers the radially outside of the cable, it avoids gaps between the first sleeve 20 and the second sleeve 30 axially, thus providing better protection for the cable and preventing damage to the cable exit structure.

[0039] In the specific implementation process, the first sleeve 20 can be made of stainless steel, and the second sleeve 30 can be made of plastic.

[0040] When the cable passes through the end of the second segment 32 away from the first segment 31 into the second sleeve 30 and moves along the axial direction of the second sleeve 30 to pass through the through hole 101 on the fixing plate 10, if the first segment 31 of the second sleeve 30 is located radially outside the first sleeve 20, the end face of the first sleeve 20 near the second segment 32 will protrude from the inner wall of the second sleeve 30 and form a stepped structure facing the second segment 32. When the cable passes through the end of the first sleeve 20 near the second segment 32, it is easy to come into contact with this stepped structure, making it difficult for the cable to enter the first sleeve 20. In fact, the outer sheath of the cable may rub against the stepped structure, causing wear on the outer sheath of the cable.

[0041] Therefore, in some embodiments, the first segment 31 of the second sleeve 30 is fitted on the radially inner side of the first sleeve 20, so that the end face of the first sleeve 20 near the second segment 32 is located on the outer wall of the second sleeve 30. This can prevent the cable from colliding or scraping with the end face of the first sleeve 20 near the second segment 32 when it passes through the first sleeve 20, and ensure that the cable can move smoothly along the axial direction of the second sleeve 30 and the first sleeve 20, and pass through the first sleeve 20 and the second sleeve 30 in sequence.

[0042] It is understandable that since the cable passes through the second sleeve 30 into the first sleeve 20, a first gap will appear between the outer wall of the cable and the inner wall of the second sleeve 30, and a second gap will appear between the inner wall of the first sleeve 20 and the outer wall of the second sleeve 30. In order to meet the waterproof requirements, the first gap and the second gap need to be sealed at the same time, which makes the sealing process cumbersome and the structure complex.

[0043] In view of this, such as Figure 2 As shown, in some embodiments, a sealing space 201 is defined between the first segment 31 and the end face of the first sleeve 20 away from the second segment 32, and a seal 40 is disposed in the sealing space 201 to seal the gap between the first sleeve 20 and the cable.

[0044] In this embodiment, a sealing space 201 is reserved inside the first sleeve 20 for installing the sealing element 40. When the cable passes through the second sleeve 30 into the first sleeve 20, there is a certain gap between the outer wall of the cable and the inner wall of the first sleeve 20 at the location of the sealing space 201. This gap is sealed by the sealing element 40. Thus, even if there is a first gap between the outer wall of the cable and the inner wall of the second sleeve 30, and a second gap between the inner wall of the first sleeve 20 and the outer wall of the second sleeve 30, liquid cannot pass through the sealing space 201 because it is already sealed by the sealing element 40. This embodiment only requires sealing at the same location to achieve waterproofing, reducing sealing steps and simplifying the sealing structure.

[0045] During construction, the fixing plate 10 is embedded in the wall 200. Concrete needs to be poured at the fixing plate 10 and on the outside of the wall 200 near the cable trench. If the two ends of the first sleeve 20 are flush with the opposite sides of the wall 200, the second section 32 of the second sleeve 30 near the first sleeve 20 will come into contact with the concrete when the concrete is poured, which may easily cause damage to this part of the structure.

[0046] Therefore, in some embodiments, the first sleeve 20 passes through the through hole 101 on both opposite sides of the fixing plate 10, and the first sleeve 20 extends out of the outer side of the wall 200 in the direction from the first section 31 to the second section 32. With this arrangement, firstly, by extending the first sleeve 20 out of the outer side of the wall 200, the connection length between the first sleeve 20 and the second sleeve 30 is increased. When concrete is poured on the outer side of the wall 200, the portion of the first sleeve 20 extending out of the wall 200 can protect the first sleeve 20, preventing the second sleeve 30 from directly contacting the concrete. Secondly, by passing the first sleeve 20 through both opposite sides of the fixing plate 10, when concrete is poured on both opposite sides of the fixing plate 10, both ends of the first sleeve 20 can contact the concrete, making its stress more stable and improving the overall structural stability of the wiring device 100.

[0047] In some embodiments, the first sleeve 20 and the fixing plate 10 are perpendicular to each other.

[0048] In the specific implementation process, the first sleeve 20 is welded and fixed to the fixing plate 10.

[0049] In some embodiments, the threading device 100 further includes a limiting structure that cooperates with the fixing plate 10 for limiting. The limiting structure is used to connect to the wall 200 and restrict the movement of the fixing plate 10. In this way, the fixing plate 10 can be prevented from moving when pouring concrete, so as to facilitate the pouring of concrete. At the same time, after the concrete is poured, the structural stability of the fixing plate 10 installed in the wall 200 can be improved.

[0050] like Figure 1 As shown, in some embodiments, the limiting structure further includes a first limiting component 50, which includes a first limiting member 51 and a second limiting member. The first limiting member 51 and the second limiting member are respectively disposed on opposite sides of the fixing plate 10, and both the first limiting member 51 and the second limiting member extend beyond at least two sides of the fixing plate 10. The first limiting member 51 and the second limiting member are respectively used to connect with the steel reinforcement frame 210 in the wall 200 to restrict the fixing plate 10 from moving toward its opposite sides.

[0051] Optionally, the first limiting member 51 and the second limiting member are symmetrically arranged on opposite sides of the fixing plate 10.

[0052] In some embodiments, the first limiting member 51 includes at least four first limiting strips 511, which are arranged in a grid, and each first limiting strip 511 extends out of opposite sides of the fixing plate 10. The second limiting member includes at least four second limiting strips, which are arranged in a grid, and each second limiting strip extends out of opposite sides of the fixing plate 10. Through this arrangement, the first limiting member 51 and the second limiting member can effectively limit the fixing plate 10 on opposite sides of the fixing plate 10, ensuring the structural stability of the fixing plate 10 within the wall 200.

[0053] Specifically, the first limiting member 51 and the second limiting member can both be a grid-shaped steel frame. The first sleeve 20 is located in the middle opening of the grid-shaped steel frame. The four ends of the grid-shaped steel frame extend out to the four sides of the fixing plate 10 and are respectively connected to the steel frame 210 in the wall 200.

[0054] like Figure 3 As shown, in some embodiments, the limiting structure includes a second limiting component 60, which includes a third limiting member 61 and a fourth limiting member 62. The third limiting member 61 and the fourth limiting member 62 are respectively disposed on opposite sides of the edge of the fixing plate 10. The third limiting member 61 and the fourth limiting member 62 are respectively used to connect with the steel reinforcement frame 210 in the wall 200 to restrict the fixing plate 10 from moving toward its opposite sides.

[0055] Specifically, the edges of the fixing plate 10 are provided with second limiting components 60. The third limiting component 61 and the fourth limiting component 62 can be steel bars or steel plates, which are welded and fixed to the steel frame 210. The third limiting component 61 and the fourth limiting component 62 are spaced apart, and the edge of the fixing plate 10 extends between the third limiting component 61 and the fourth limiting component 62.

[0056] In this embodiment of the utility model, the combination of the first limiting component 50 and the second limiting component 60 can enhance the structural stability of the threading device 100 in the wall 200.

[0057] During the installation of the cable through the second sleeve 30, the second sleeve 30 may move axially relative to the first sleeve 20, causing the second sleeve 30 to deviate from the installation position of the first sleeve 20.

[0058] Therefore, in some embodiments, the first sleeve 20 is provided with a first limiting structure, and the second sleeve 30 is provided with a second limiting structure. The first limiting structure and the second limiting structure cooperate to limit the movement of the second sleeve 30 relative to the first sleeve 20. In this way, the second sleeve 30 can be fixed relative to the first sleeve 20, and the second sleeve 30 can be kept in the same installation position to prevent the cable from moving relative to the first sleeve 20 during the installation of the cable.

[0059] In some embodiments, one of the first limiting structure and the second limiting structure is an internal thread, and the other of the first limiting structure and the second limiting structure is an external thread, with the internal thread and the external thread screwed together. By adopting a threaded connection, the first sleeve 20 and the second sleeve 30 are fixed to each other, while the installation of the first sleeve 20 and the second sleeve 30 is facilitated.

[0060] Specifically, the second limiting structure is located in the first segment 31 of the second sleeve 30.

[0061] In some other embodiments, the first limiting structure and the second limiting structure may also be other structures used to limit the movement of the second sleeve 30 relative to the first sleeve 20, and are not limited to the internal threads and external threads described above. For example, one of the first limiting structure and the second limiting structure may be a groove, and the other of the first limiting structure and the second limiting structure may be a snap-fit ​​protrusion, which snaps into the groove.

[0062] In some other embodiments, the first segment 31 of the first sleeve 20 may also be directly press-fitted with the second sleeve 30 so that the second sleeve 30 is fixed relative to the first sleeve 20.

[0063] like Figure 1As shown, in some embodiments, the threading device 100 further includes a reinforcing structure 70, which connects the fixing plate 10 and the first sleeve 20. This strengthens the connection between the first sleeve 20 and the fixing plate 10 and ensures the structural stability between the fixing plate 10 and the first sleeve 20.

[0064] In some embodiments, the reinforcing structure 70 includes a plurality of reinforcing ribs 71, which surround the radially outer side of the first sleeve 20 and connect the fixing plate 10 and the outer wall of the first sleeve 20. With this arrangement, the plurality of reinforcing ribs 71 can support the first sleeve 20 radially, improving the radial load-bearing capacity of the first sleeve 20 on the fixing plate 10 and preventing the first sleeve 20 from being subjected to large shear forces and structural damage during concrete pouring.

[0065] In some embodiments, the fixing plate 10 defines a plurality of through holes 101, each through hole 101 being provided with the aforementioned first sleeve 20, second sleeve 30 and sealing element 40, so that the cable threading device 100 can allow multiple cables to pass through and enter indoor spaces such as pipe racks and tunnels.

[0066] Within the scope of knowledge possessed by those skilled in the art, various modifications can be made without departing from the spirit of this utility model. Furthermore, embodiments of this utility model and features thereof can be combined with each other, unless otherwise specified.

Claims

1. A threading device, characterized in that, include: A fixing plate defining a through hole, the fixing plate being used for mounting to a wall; A first sleeve is disposed in the through hole and connected to the fixing plate; The second sleeve includes a first section and a second section, the first section and the second section are connected, the first section and the second sleeve are sleeved on each other, the second section is located on the axial outside of the first sleeve, and the first section and the second section are used together for the cable to pass through; A sealing element, which is connected to the first sleeve and is used to seal the first sleeve.

2. The threading device according to claim 1, characterized in that, The first segment is fitted onto the radial inner side of the first sleeve.

3. The threading device according to claim 2, characterized in that, A sealing space is defined between the first segment and the end face of the first sleeve away from the second segment, and the sealing element is disposed in the sealing space to seal the gap between the first sleeve and the cable.

4. The threading device according to claim 2, characterized in that, The first sleeve passes through the through hole and is installed on both opposite sides of the fixing plate, and the first sleeve extends out of the outer side of the wall in the direction from the first segment to the second segment.

5. The threading device according to claim 1, characterized in that, The threading device also includes a limiting structure, which cooperates with the fixing plate to limit movement. The limiting structure is used to connect to the wall and restrict the movement of the fixing plate.

6. The threading device according to claim 5, characterized in that, The limiting structure further includes a first limiting component, which includes a first limiting member and a second limiting member. The first limiting member and the second limiting member are respectively disposed on opposite sides of the fixing plate, and both the first limiting member and the second limiting member extend beyond at least two sides of the fixing plate. The first limiting member and the second limiting member are respectively used to connect with the steel reinforcement frame in the wall.

7. The threading device according to claim 6, characterized in that, The first limiting member includes at least four first limiting strips, which are arranged in a grid pattern, and each first limiting strip extends out of the opposite two sides of the fixing plate. The second limiting member includes at least four second limiting strips, which are arranged in a grid pattern, and each second limiting strip extends from opposite sides of the fixing plate.

8. The threading device according to claim 5, characterized in that, The limiting structure includes a second limiting component, which includes a third limiting member and a fourth limiting member. The third limiting member and the fourth limiting member are respectively disposed on opposite sides of the edge of the fixing plate, and the third limiting member and the fourth limiting member are respectively used to connect with the steel reinforcement frame in the wall.

9. The threading device according to claim 1, characterized in that, The threading device also includes a reinforcing structure that connects the fixing plate and the first sleeve.

10. The threading device according to claim 9, characterized in that, The reinforcing structure includes multiple reinforcing ribs, which surround the radial outer side of the first sleeve and connect the fixing plate and the outer wall of the first sleeve.

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