Waterproof structure

Abstract

The utility model provides a waterproof structure, which can be used for preventing water at the joint of a first line body and a second line body, and comprises a waterproof sleeve which is provided with an inner cavity and is provided with a first through hole and a second through hole which are communicated with the inner cavity, and the first line body is arranged in the first through hole in a penetrating manner; the mounting part is provided with a mounting cavity, the mounting part is connected with the waterproof sleeve and located at the second through hole, the second wire body is arranged in the mounting part and the second through hole in a penetrating mode, the second wire body is connected with the first wire body, and the joint of the second wire body and the first wire body is located in the inner cavity; the sealing part is arranged in the mounting cavity and is arranged between the second wire body and the inner wall of the mounting part so as to seal the second wire body and the mounting part; the extrusion part is connected with the mounting part, and the extrusion part can extrude the sealing part so that the sealing part can be matched with the inner walls of the second wire body and the mounting part in an abutting mode. According to the technical scheme, the problem that the waterproof effect on the cable is poor in the prior art can be effectively solved.

Description

Technical Field

[0001] The utility model relates to the technical field of cable connection, in particular to a waterproof structure. Background Art

[0002] The safe and stable operation of the power system plays a vital role in the production and life of the people. The safe and stable operation of the substation is an important link in the safe and stable operation of the power system. At present, in this field, cables are common equipment used for power transmission in substations. Cables are connected to cables and protective pipes are set around the cables. In addition to protecting the cables, the protective pipes can also play a waterproof role for the cables.

[0003] Specifically, fireproof cement is usually placed at the pipe mouth for sealing. However, after a period of exposure to the sun and rain, the fireproof cement is prone to shrinkage and fall off, which makes it easy for water to enter the pipe. If the cables in the pipe are soaked in water for a long time, the cables will be aged and corroded faster, which will lead to cable damage and even unplanned interruption of substation functions, affecting the safe and stable operation of the power system. Therefore, there is a problem of poor waterproof effect on cables in the art. Utility Model Content

[0004] The main purpose of the utility model is to provide a waterproof structure to solve the problem of poor waterproof effect on cables in the related art.

[0005] In order to achieve the above-mentioned purpose, the utility model provides a waterproof structure, which can waterproof the connection between the first wire body and the second wire body, and the waterproof structure includes: a waterproof sleeve, which has an inner cavity, and the waterproof sleeve is provided with a first through hole and a second through hole connected to the inner cavity, and the first wire body is inserted into the first through hole; a mounting portion, which has a mounting cavity, the mounting portion is connected to the waterproof sleeve and is located at the second through hole, the second wire body is inserted into the mounting portion and the second through hole, the second wire body is connected to the first wire body, and the connection between the second wire body and the first wire body is located in the inner cavity; a sealing portion, which is arranged in the mounting cavity and between the second wire body and the inner wall of the mounting portion to seal the second wire body and the mounting portion; an extrusion portion, which is connected to the mounting portion, and the extrusion portion can extrude the sealing portion so that the sealing portion and the inner walls of the second wire body and the mounting portion are both abutted and matched.

[0006] Furthermore, the sealing portion includes a sealing sleeve, which includes a base section and a flared section. The flared section is arranged away from the waterproof sleeve relative to the base section, and the inner diameter of the flared section gradually increases in a direction away from the waterproof sleeve.

[0007] Furthermore, the extrusion portion further comprises a covering portion and an annular gasket, the annular gasket is abutted against the sealing sleeve, and the covering portion covers the mounting portion to prevent the sealing sleeve and the annular gasket from detaching from the mounting cavity.

[0008] Furthermore, the annular gasket includes a first sheet and a second sheet that are stacked, the second sheet is arranged away from the waterproof sleeve relative to the first sheet, the second sheet can be abutted against the flared section, and the first sheet can extend into the flared section.

[0009] Furthermore, the covering portion includes a cover plate and a surrounding plate arranged on the cover plate, the surrounding plate extends toward the waterproof sleeve, and the waterproof structure also includes a connecting structure arranged between the surrounding plate and the mounting portion to connect the covering portion and the mounting portion.

[0010] Furthermore, the connection structure includes a first thread structure and a second thread structure that cooperate with each other, the first thread structure is arranged on the inner surface of the enclosure, and the second thread structure is arranged on the outer surface of the mounting portion.

[0011] Furthermore, the first thread structure and the second thread structure are both multi-thread structures.

[0012] Further, the sealing portion is made of rubber.

[0013] Furthermore, the waterproof sleeve includes a first cylinder and a second cylinder, the second cylinder is arranged on the outer periphery of the first cylinder, and the inner cavity is formed in the first cylinder.

[0014] Further, the first cylinder is made of stainless steel; and / or a protective layer is provided on the outer periphery of the first cylinder, and the protective layer is made of zinc.

[0015] By applying the technical solution of the utility model, the waterproof sleeve is used to protect the first wire body and the second wire body, the waterproof sleeve has an inner cavity, the connection between the first wire body and the second wire body is located in the inner cavity, the waterproof sleeve has a first through hole and a second through hole, the first wire body is inserted in the first through hole, the second wire body is inserted in the mounting portion and the second through hole, the mounting portion is connected to the waterproof sleeve and is located at the second through hole, the mounting portion has a mounting cavity, the sealing portion is arranged in the mounting cavity and between the second wire body and the inner wall of the mounting portion to seal the second wire body and the mounting portion, so that external water will not pass through the mounting cavity and the second wire body. The through hole enters the inner cavity, thereby achieving a waterproof effect, thereby ensuring that the first wire body and the second wire body will not be soaked in water and accelerate aging and corrosion. The extrusion part is connected to the installation part, and the extrusion part can squeeze the sealing part, so that the sealing part and the inner wall of the second wire body and the installation part are all abutted and matched, thereby further ensuring the waterproof effect of the sealing part. Compared with the solution using fireproof mud in the related technology, the waterproof structure of the present application can continuously and stably seal and waterproof the first wire body and the second wire body, thereby ensuring that the electrical equipment using the first wire body and the second wire body can operate safely and stably. Therefore, the technical solution of the present application can effectively solve the problem of poor waterproof effect on cables in the related technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings constituting part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0017] Figure 1 A cross-sectional schematic diagram of an embodiment of the waterproof structure according to the utility model is shown.

[0018] The above drawings include the following reference numerals:

[0019] 10. waterproof sleeve; 11. second through hole; 12. inner cavity;

[0020] 20. Installation department;

[0021] 30. Sealing part; 31. Sealing sleeve; 311. Base section; 312. Expanding section;

[0022] 40, extrusion part; 41, covering part; 411, cover plate; 412, enclosure plate; 42, annular gasket; 421, first sheet body; 422, second sheet body;

[0023] 50. Connection structure; 51. First thread structure; 52. Second thread structure. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means a limitation on the utility model and its application or use. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0025] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0026] Unless otherwise specifically stated, the relative arrangement, numerical expressions and numerical values ​​of the parts and steps set forth in these embodiments do not limit the scope of the utility model. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to the actual proportional relationship. The technology, method and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but in appropriate cases, the technology, method and equipment should be considered as a part of the specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, and therefore, once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.

[0027] like Figure 1 As shown, the present application provides a waterproof structure, which can waterproof the connection between the first wire body and the second wire body. An embodiment of the waterproof structure of the present application includes: a waterproof sleeve 10, a mounting portion 20, a sealing portion 30, and an extrusion portion 40; the waterproof sleeve 10 has an inner cavity 12, and the waterproof sleeve 10 is provided with a first through hole and a second through hole 11 connected to the inner cavity 12, and the first wire body is passed through the first through hole; the mounting portion 20 has a mounting cavity, the mounting portion 20 is connected to the waterproof sleeve 10 and is located at the second through hole 11, the second wire body is passed through the mounting portion 20 and the second through hole 11, the second wire body is connected to the first wire body, and the connection between the second wire body and the first wire body is located in the inner cavity 12; the sealing portion 30 is arranged in the mounting cavity and between the second wire body and the inner wall of the mounting portion 20 to seal the second wire body and the mounting portion 20; the extrusion portion 40 is connected to the mounting portion 20, and the extrusion portion 40 can squeeze the sealing portion 30 so that the sealing portion 30 and the inner wall of the second wire body and the mounting portion 20 are both abutted and matched.

[0028] The technical solution of this embodiment is applied, and the waterproof sleeve 10 is used to protect the first wire body and the second wire body. The waterproof sleeve 10 has an inner cavity 12, and the connection between the first wire body and the second wire body is located in the inner cavity 12. The waterproof sleeve 10 has a first through hole and a second through hole 11. The first wire body is inserted into the first through hole, and the second wire body is inserted into the mounting portion 20 and the second through hole 11. The mounting portion 20 is connected to the waterproof sleeve 10 and is located at the second through hole 11. The mounting portion 20 has an installation cavity, and the sealing portion 30 is arranged in the installation cavity and between the second wire body and the inner wall of the mounting portion 20 to seal the second wire body and the mounting portion 20, so that external water will not pass through the mounting cavity. The cavity and the second through hole 11 enter into the inner cavity 12, thereby achieving a waterproof effect, thereby ensuring that the first wire body and the second wire body will not be soaked in water and accelerate aging and corrosion. The extrusion part 40 is connected to the installation part 20, and the extrusion part 40 can squeeze the sealing part 30, so that the sealing part 30 and the inner wall of the second wire body and the installation part 20 are all abutted and matched, thereby further ensuring the waterproof effect of the sealing part 30. Compared with the solution using fireproof mud in the related technology, the waterproof structure of this embodiment can continuously and stably seal and waterproof the first wire body and the second wire body, thereby ensuring that the electrical equipment using the first wire body and the second wire body can operate safely and stably. Therefore, the technical solution of this embodiment can effectively solve the problem of poor waterproof effect on cables in the related technology.

[0029] When using the waterproof structure of this embodiment, the user can make the first wire body pass through the first through hole and extend into the inner cavity 12, make the second wire body pass through the mounting portion 20 and the second through hole 11 and extend into the inner cavity 12, and connect the first wire body and the second wire body in the inner cavity 12. The user can also connect the first wire body and the second wire body externally first, and then make the connected wire body pass through the mounting portion 20 and the second through hole 11 and extend into the inner cavity 12, and then make the first wire body pass out from the first through hole, so that the connection between the first wire body and the second wire body is located in the inner cavity 12.

[0030] like Figure 1 As shown, the sealing portion 30 includes a sealing sleeve 31, and the sealing sleeve 31 includes a base section 311 and a flared section 312. The flared section 312 is arranged away from the waterproof sleeve 10 relative to the base section 311, and the inner diameter of the flared section 312 gradually increases in the direction away from the waterproof sleeve 10. Specifically, the base section 311 is closely matched with the second wire body to achieve a sealing and waterproof effect, and the inner diameter of the flared section 312 gradually increases in the direction away from the waterproof sleeve 10, so that when the second wire body extends from the flared part of the flared section 312 into the sealing sleeve 31, the flared section 312 can guide the second wire body, so that the second wire body can be more easily extended from the flared section 312 into the base section 311.

[0031] like Figure 1As shown, the extrusion portion 40 further includes a covering portion 41 and an annular gasket 42, the annular gasket 42 is in abutment with the sealing sleeve 31, and the covering portion 41 covers the mounting portion 20 to prevent the sealing sleeve 31 and the annular gasket 42 from being separated from the mounting cavity. Specifically, when the covering portion 41 covers the mounting portion 20, on the one hand, the covering portion 41 can prevent the sealing sleeve 31 and the annular gasket 42 from being separated from the mounting cavity, and on the other hand, the covering portion 41 can squeeze the annular gasket 42, so that the annular gasket 42 squeezes the sealing sleeve 31, and then the sealing sleeve 31 can maintain a state of abutment with the inner wall of the second wire body and the mounting portion 20, thereby ensuring the sealing and waterproof effect of the sealing sleeve 31.

[0032] like Figure 1 As shown, the annular gasket 42 includes a first sheet 421 and a second sheet 422 which are stacked. The second sheet 422 is arranged away from the waterproof sleeve 10 relative to the first sheet 421. The second sheet 422 can abut against the flared section 312, and the first sheet 421 can extend into the flared section 312. Specifically, both the first sheet 421 and the second sheet 422 have holes through which the second wire body can pass. The outer contour of the first sheet 421 matches the inner contour of the flared section 312. When the annular gasket 42 squeezes the sealing sleeve 31, the second sheet 422 and the flared section 312 press against each other to squeeze the flared section 312, and then squeeze the base section 311. The first sheet 421 can extend into the flared section 312 to seal the flared opening of the flared section 312, thereby preventing water from entering the sealing sleeve 31 from the flared opening of the flared section 312, thereby preventing water from entering the inner cavity 12 from the sealing sleeve 31, thereby further improving the waterproof effect of the waterproof structure.

[0033] like Figure 1 As shown, the covering part 41 includes a cover plate 411 and a surrounding plate 412 disposed on the cover plate 411, the surrounding plate 412 extends toward the waterproof sleeve 10, and the waterproof structure also includes a connecting structure 50 disposed between the surrounding plate 412 and the mounting portion 20 to connect the covering part 41 and the mounting portion 20. Specifically, the provision of the connecting structure 50 can effectively achieve a stable connection between the surrounding plate 412 and the mounting portion 20, so that the covering part 41 can play a role in stably extruding the annular gasket 42 and the sealing sleeve 31. In other embodiments, the connecting structure can be a buckle and a slot, one of the buckle and the slot is disposed on the surrounding plate, and the other of the buckle and the slot is disposed on the mounting portion.

[0034] like Figure 1As shown, in this embodiment, the connection structure 50 includes a first thread structure 51 and a second thread structure 52 that cooperate with each other, the first thread structure 51 is arranged on the inner surface of the enclosure 412, and the second thread structure 52 is arranged on the outer surface of the mounting portion 20. Specifically, the first thread structure 51 and the second thread structure 52 can stably connect the covering portion 41 and the mounting portion 20, and have the advantages of simple processing and reliable connection.

[0035] In addition, in the present embodiment, both the first thread structure 51 and the second thread structure 52 are multi-thread structures. Specifically, in the present embodiment, both the first thread structure 51 and the second thread structure 52 are double-thread structures. In this way, on the one hand, the double-thread structure can make the nesting arrangement of the cover part 41 and the mounting part 20 more stable. On the other hand, compared with the single-thread structure, under the same rotation angle, the double-thread structure can make the cover part 41 move up and down for a longer stroke, so that the user can rotate a smaller angle to make the cover part 41 squeeze the annular gasket 42 and the sealing sleeve 31.

[0036] In this embodiment, the sealing part 30 is made of rubber. The sealing part 30 made of rubber has good elasticity, which enables the sealing part 30 to adapt to different abutment surfaces and pressure changes; the sealing part 30 made of rubber can provide a good sealing effect to prevent the entry of liquid; the sealing part 30 made of rubber is resistant to chemical corrosion and is suitable for sealing in a variety of chemical environments; the sealing part 30 made of rubber is suitable for applications under different temperature conditions; the sealing part 30 made of rubber has a long service life and can resist aging caused by oxidation; the sealing part 30 made of rubber is easy to install and disassemble, and is convenient for maintenance and replacement; the sealing part 30 made of rubber is suitable for occasions requiring insulation.

[0037] like Figure 1 As shown, the waterproof sleeve 10 includes a first cylinder and a second cylinder, the second cylinder is arranged on the periphery of the first cylinder, and the inner cavity 12 is formed in the first cylinder. Specifically, the arrangement of the first cylinder and the second cylinder makes the waterproof sleeve 10 have a strong structural strength. Compared with the thicker single-layer cylinder solution, the double-layer cylinder solution is easier to process, and different cylinders can be made of different materials.

[0038] In addition, in this embodiment, the first cylinder body is made of stainless steel. The first cylinder body made of stainless steel has strong structural strength and corrosion resistance, and can provide better protection for the first wire body and the second wire body. A protective layer is provided on the outer periphery of the first cylinder body. The protective layer is made of zinc. The protective layer can further enhance the corrosion resistance of the first cylinder body, thereby extending the service life of the waterproof sleeve 10.

[0039] In the description of the present utility model, it needs to be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction, and therefore cannot be understood as limiting the scope of protection of the present utility model; the directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0040] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0041] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the utility model.

[0042] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A waterproof structure capable of waterproofing the connection between a first wire body and a second wire body, characterized in that: The waterproof structure comprises: A waterproof sleeve (10) having an inner cavity (12), wherein the waterproof sleeve (10) is provided with a first through hole and a second through hole (11) communicating with the inner cavity (12), and the first wire body is passed through the first through hole; A mounting portion (20) having a mounting cavity, the mounting portion (20) being connected to the waterproof sleeve (10) and being located at the second through hole (11), the second wire body being passed through the mounting portion (20) and the second through hole (11), the second wire body being connected to the first wire body, and the connection between the second wire body and the first wire body being located in the inner cavity (12); A sealing portion (30) is arranged in the installation cavity and between the second wire body and the inner wall of the installation portion (20) to seal the second wire body and the installation portion (20); An extrusion portion (40) is connected to the mounting portion (20), and the extrusion portion (40) is capable of extruding the sealing portion (30) so that the sealing portion (30) is in abutment with the second wire body and the inner wall of the mounting portion (20).

2. The waterproof structure according to claim 1, characterized in that: The sealing portion (30) comprises a sealing sleeve (31), the sealing sleeve (31) comprises a base section (311) and a flared section (312), the flared section (312) being arranged away from the waterproof sleeve (10) relative to the base section (311), and the inner diameter of the flared section (312) gradually increases in a direction away from the waterproof sleeve (10).

3. The waterproof structure according to claim 2, characterized in that: The extrusion portion (40) further comprises a covering portion (41) and an annular gasket (42), wherein the annular gasket (42) is in abutment with the sealing sleeve (31), and the covering portion (41) covers the mounting portion (20) to prevent the sealing sleeve (31) and the annular gasket (42) from being separated from the mounting cavity.

4. The waterproof structure according to claim 3, characterized in that: The annular gasket (42) comprises a first sheet (421) and a second sheet (422) which are stacked together. The second sheet (422) is arranged away from the waterproof sleeve (10) relative to the first sheet (421). The second sheet (422) can be abutted against the flared section (312), and the first sheet (421) can extend into the flared section (312).

5. The waterproof structure according to claim 4, characterized in that: The covering portion (41) comprises a cover plate (411) and a surrounding plate (412) arranged on the cover plate (411), wherein the surrounding plate (412) extends toward the waterproof sleeve (10), and the waterproof structure further comprises a connecting structure (50) arranged between the surrounding plate (412) and the mounting portion (20) so that the covering portion (41) and the mounting portion (20) are connected.

6. The waterproof structure according to claim 5, characterized in that: The connection structure (50) comprises a first threaded structure (51) and a second threaded structure (52) that cooperate with each other, wherein the first threaded structure (51) is arranged on the inner surface of the enclosure (412), and the second threaded structure (52) is arranged on the outer surface of the mounting portion (20).

7. The waterproof structure according to claim 6, characterized in that: The first thread structure (51) and the second thread structure (52) are both multi-thread structures.

8. The waterproof structure according to any one of claims 1 to 7, characterized in that: The sealing portion (30) is made of rubber.

9. The waterproof structure according to any one of claims 1 to 7, characterized in that: The waterproof sleeve (10) comprises a first cylinder and a second cylinder, wherein the second cylinder is arranged on the outer periphery of the first cylinder, and the inner cavity (12) is formed in the first cylinder.

10. The waterproof structure according to claim 9, characterized in that: The first cylinder is made of stainless steel; and / or, A protective layer is provided on the outer periphery of the first cylinder, and the protective layer is made of zinc.

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