Downward-leading cable plugging device

Abstract

The utility model provides a down-leading cable plugging device, and relates to the technical field of plugging, the down-leading cable plugging device comprises a plugging device housing, the interior of the plugging device housing is hollow, and the plugging device housing comprises two housing bodies which are detachably connected; a plurality of first grooves are formed in one end of each shell, a second groove is formed in the other end of each shell, the first grooves and the second grooves extend into the shells, and the second grooves communicate with the first grooves; the corresponding first grooves of the two shells are in butt joint to form a plurality of first through holes, the inner diameter of each first through hole is matched with the inner diameter of a single down-leading cable, the first through holes are used for the single down-leading cable to penetrate through, and sealing plugs are correspondingly and detachably arranged in the first through holes. The corresponding second grooves of the two shells are in butt joint to form a second through hole, the inner diameter of the second through hole is matched with a steel pipe arranged on the outer side of the down-leading cable in a sleeving mode, and the second through hole is used for the steel pipe to penetrate through. According to the down-leading cable plugging device, independent sealing of a plurality of down-leading cables can be realized.

Description

Technical Field

[0001] The present application relates to the technical field of plugging, and in particular to a down-lead cable plugger. Background Art

[0002] For aesthetic and safety reasons, cables or optical cables used for power and communications are often buried underground, and the substation and other equipment connected to them are located above ground. Therefore, a down lead cable is required. The down lead cable refers to a cable whose upper end is connected to the substation and other equipment, and the lower end is connected to the buried cable. A steel pipe is sheathed on the outside of the buried cable. The opening of the steel pipe is much larger than the diameter of the down lead cable. If the gap at the opening of the steel pipe is not sealed, it will lead to rain and snow leakage, the spread of fire outside the station, and the entry of insects and ants, posing a great safety hazard.

[0003] In the prior art, fireproof mud is usually used for sealing. After long-term exposure to wind and sun, the fireproof mud will become loose or fall off, posing a safety hazard. Patent CN203014331U discloses a plug for down-conducting cables. The upper surface of the plug has a circular hole that matches the size of the down-conducting cable, and the lower surface is a ring surface that matches the size of the steel pipe. It can effectively seal a single cable. However, when there are multiple down-conducting cables, the cross-sectional shape of the entire bundle of cables formed by the multiple down-conducting cables is irregular, and other sealing materials such as fireproof mud need to be used to seal the plug again, which results in poor sealing effect. Summary of the Invention

[0004] The purpose of the present application is to address the above problems and provide a downconductor cable plugger. The downconductor cable plugger of the present application can achieve separate sealing of multiple downconductor cables.

[0005] In order to solve the above problems, the present application provides a down-conducting cable plugger, comprising:

[0006] An occluder housing, wherein the interior of the occluder housing is hollow and comprises two detachably connected shells;

[0007] One end of each shell includes a plurality of first grooves, and the other end is provided with a second groove, the first grooves and the second grooves both extend into the interior of the shell, and the second grooves are communicated with the first grooves;

[0008] The corresponding first grooves of the two housings are respectively connected to form a plurality of first through holes, the inner diameter of the first through holes is adapted to a single down conductor cable, the first through holes are used for the single down conductor cable to pass through, and the first through holes are correspondingly provided with detachable sealing plugs;

[0009] The corresponding second grooves of the two shells are connected to form a second through hole. The inner diameter of the second through hole is adapted to the steel pipe sleeved on the outside of the down conductor cable, and the second through hole is used for the steel pipe to pass through.

[0010] In some possible implementations, an inner wall of the first groove and an inner wall of the second groove are both provided with elastic gaskets, and the elastic gaskets are tightly fitted with the shell.

[0011] In some possible implementations, an annular protrusion is provided on the peripheral side of the seal, and a third groove matching the shape of the annular protrusion is provided on the elastic gasket on the inner wall of the first groove.

[0012] In some possible implementations, a truncated cone-shaped protrusion is provided on the sealing circumferential side, the size of the truncated cone-shaped protrusion close to the second through hole is smaller than the size away from the second through hole, and the elastic gasket on the inner wall of the first groove is provided with a snap-fit ​​structure that cooperates with the truncated cone-shaped protrusion.

[0013] In some possible implementations, the sealing plug is adapted to a size of the first through hole.

[0014] In some possible implementations, the inner diameter of the first through hole is between 8 mm and 12 mm.

[0015] In some possible implementations, sealing rings are provided at ends of the first through hole and the second through hole that are away from each other.

[0016] In some possible implementations, the sealing plug is made of elastic material.

[0017] In some possible implementations, the inner wall of the first groove and the inner wall of the second groove are sequentially spaced apart with fourth grooves, and the elastic gasket is provided with a first ridge on one side close to the occluder housing (1) and engaged with the fourth groove, and a second ridge on the other side, and the second ridge is used to abut against the outer wall of the cable or steel pipe.

[0018] In some possible implementations, corresponding positioning columns and positioning holes are provided on the opposing walls of the two shells, and corresponding outwardly extending connecting lugs are provided at the junction of the two shells, and connecting holes are provided on the connecting lugs.

[0019] Compared with the prior art, the beneficial effects of the present application are: by setting multiple first through holes, separate sealing of multiple down-lead cables is achieved with good sealing effect, and unused first through holes are sealed with sealing plugs to achieve flexible adjustment of the number of first through holes, and the inner diameter of the first through hole is optional, with a wider range of applications.

[0020] It should be understood that the description of technical features, technical solutions, beneficial effects or similar language in this application does not imply that all features and advantages can be realized in any single embodiment. On the contrary, it is understood that the description of a feature or beneficial effect means that a specific technical feature, technical solution or beneficial effect is included in at least one embodiment. Therefore, the description of a technical feature, technical solution or beneficial effect in this specification does not necessarily refer to the same embodiment. Furthermore, the technical features, technical solutions and beneficial effects described in the present embodiment can also be combined in any appropriate manner. Those skilled in the art will understand that the embodiment can be implemented without one or more specific technical features, technical solutions or beneficial effects of a specific embodiment. In other embodiments, additional technical features and beneficial effects can also be identified in specific embodiments that do not embody all embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solution in this embodiment, the following is a brief introduction to the drawings required for the description of the embodiment. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0022] Figure 1 A schematic diagram of a downconductor cable provided in an embodiment of the present application;

[0023] Figure 2 A schematic diagram of the structure of an occluder provided in an embodiment of the present application;

[0024] Figure 3 A schematic structural diagram of a housing provided in an embodiment of the present application;

[0025] Figure 4 Provided in the embodiments of this application Figure 3 Installation diagram at point A in the middle;

[0026] Figure 5 A schematic cross-sectional view of a sealing plug provided in an embodiment of the present application;

[0027] Figure 6 A cross-sectional schematic diagram of another sealing plug provided in an embodiment of the present application.

[0028] The text labels shown in the figure represent:

[0029] 1. Occluder housing; 11. Shell; 111. First groove; 112. Second groove; 113. Elastic gasket; 1131. Third groove; 1132. Clamping structure; 1133. First ridge; 1134. Second ridge; 114. Fourth groove; 12. First through hole; 13. Second through hole; 14. Occluder; 141. Annular protrusion; 142. Cone-shaped protrusion; 15. Positioning column; 16. Positioning hole; 17. Connecting lug; 18. Connecting hole; 2. Steel pipe; 3. Down-lead cable. DETAILED DESCRIPTION

[0030] In order to enable those skilled in the art to better understand the technical solutions of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings. The description in this section is only exemplary and explanatory and should not have any limiting effect on the scope of protection of the present application. Specifically, the embodiments described are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work should fall within the scope of protection of the present application.

[0031] It should be noted that similar reference numerals and letters represent similar items in the following figures. Therefore, once an item is defined in one figure, it does not need to be further defined or explained in subsequent figures. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product or apparatus that includes a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units that are not explicitly listed or inherent to these processes, methods, products or apparatuses.

[0032] To facilitate understanding of this application, a brief introduction to the related technologies is first given:

[0033] The down-lead cable refers to a section of cable that is connected to equipment such as a substation at the upper end and to an underground cable at the lower end. A steel pipe is sheathed on the outside of the underground cable. In order to facilitate the introduction of the technical solution of this application, the down-lead cable is introduced below in conjunction with the accompanying drawings. Figure 1 As shown, Figure 1 A schematic diagram of a down-conductor cable provided in an embodiment of the present application, wherein multiple down-conductor cables 3 enter from the opening of a steel pipe 2, the diameter of the opening of the steel pipe 2 is much larger than the diameter of the down-conductor cables 3, and there is a large gap at the opening of the steel pipe 2. When multiple down-conductor cables 3 enter the steel pipe 2, since the cross-sectional shape of the entire bundle of cables formed by the multiple down-conductor cables 3 is irregular, other sealing materials such as fireproof mud are required to perform secondary sealing on the plugger, which is cumbersome to operate and has a poor sealing effect.

[0034] In view of this, an embodiment of the present application provides a down-conducting cable plugging device, comprising:

[0035] The occluder housing 1 is hollow and includes two detachably connected shells 11;

[0036] One end of each housing 11 includes a plurality of first grooves 111, and the other end is provided with a second groove 112, the first grooves 111 and the second grooves 112 both extend into the interior of the housing 11, and the second grooves 112 are in communication with the plurality of first grooves 111;

[0037] The corresponding first grooves 111 of the two housings 11 are respectively connected to form a plurality of first through holes 12. The inner diameter of the first through holes 12 is adapted to the single down conductor cable 3. The first through holes 12 are used for the single down conductor cable 3 to pass through. The first through holes 12 are correspondingly provided with detachable sealing plugs 14.

[0038] The corresponding second grooves 112 of the two shells 11 are connected to form a second through hole 13. The inner diameter of the second through hole 13 is adapted to the steel pipe 2 sleeved on the outside of the down conductor cable 3. The second through hole 13 is used for the steel pipe 2 to pass through.

[0039] Figure 2 This is a schematic diagram of the structure of an occluder provided in an embodiment of the present application. Figure 3 This is a schematic diagram of the structure of a housing 11 provided in an embodiment of the present application. To facilitate disassembly and installation, the outer frame of the occluder is composed of two detachably connected housings 11. The two housings 11 are spliced ​​together to form the occluder housing 1. To individually seal each downconductor cable 3, each housing 11 includes multiple first grooves 111 at one end and a second groove 112 at the other end. The first grooves 111 and the second grooves 112 extend into the interior of the housing 11, and the second grooves 112 are connected to the first grooves 111.

[0040] The corresponding first grooves 111 on the two shells 11 are connected to form multiple first through holes 12. In order to achieve a better sealing effect for a single down conductor cable 3, the down conductor cable 3 is interference-fitted with the first through hole 12 when passing through the first through hole 12. The inner diameter of the first through hole 12 is adapted to the single down conductor cable 3. The cross-sectional shape of the single down conductor cable 3 is a regular circle, and the opening shape of the first through hole 12 is a circle. Since the single down conductor cable 3 is placed in the first through hole 12 and sealed separately, the problem of secondary sealing when multiple down conductor cables 3 are sealed as a whole can be avoided. The number of first through holes 12 can be adjusted according to actual needs. Each first through hole 12 is correspondingly provided with a sealing plug 14. The unused first through holes 12 are plugged with the sealing plug 14. For example, there are four first through holes 12 on the occluder housing 1, and there are three down conductor cables 3. The three down conductor cables 3 pass through the three first through holes 12 respectively, and the remaining first through hole 12 can be plugged with the sealing plug 14.

[0041] The corresponding second grooves 112 of the two shells 11 are connected to form a second through hole 13. The inner diameter of the second through hole 13 is adapted to the steel pipe 2 sleeved on the outside of the down conductor cable 3. The second through hole 13 and the steel pipe 2 are interference fit, and the second through hole 13 is used for the steel pipe 2 to pass through.

[0042] In some embodiments, the sealing plug 14 is made of elastic material, and the sealing plug 14 cooperates with the first through hole 12 to achieve a good sealing effect.

[0043] In some embodiments, in order to achieve a better sealing effect, elastic gaskets 113 that fit tightly with the housing 11 are provided on the inner wall of the first groove 111 and the inner wall of the second groove 112 .

[0044] In some embodiments, in order to achieve a close fit between the occluder housing 1 and the elastic gasket 113, a fourth groove 114 is sequentially provided on the inner wall of the first groove 111 and the inner wall of the second groove 112. A first ridge 1133 is provided on one side of the elastic gasket 113 close to the occluder housing 1 to engage with the fourth groove 114, and a second ridge 1134 is provided on the other side. The second ridge 1134 is used to abut against the outer wall of the cable or steel pipe 2. For convenience, the present embodiment only provides Figure 3 The installation diagram at A in the figure shows the connection relationship between the first groove 111, the second groove 112 and the elastic gasket 113. In fact, the positions of the elastic gasket 113 on the inner walls of the first groove 111 and the second groove 112 inside the occluder housing 1 are all as shown in A. Figure 4 Provided in the embodiments of this application Figure 3In the installation diagram at point A, the fourth groove 114 cooperates with the first ridge 1133 on the side of the elastic gasket 113 close to the occluder housing 1; in order to achieve a good sealing effect, a second ridge 1134 is provided on the other side of the elastic gasket 113, that is, the side that abuts against the outer wall of the down-lead cable 3 or the steel pipe 2.

[0045] In some embodiments, the sealing plug 14 is adapted to the size of the first through hole 12. After the elastic gasket 113 is provided on the inner wall of the first through hole 12, the size of the first through hole 12 is adaptively adjusted to facilitate the down conductor cable 3 to pass through the first through hole 12, achieving a better sealing effect.

[0046] In some embodiments, in order to achieve a good sealing effect, an annular protrusion 141 is provided on the periphery of the sealing plug 14, and a third groove 1131 matching the shape of the annular protrusion 141 is provided on the elastic gasket 113 on the inner wall of the first groove 111. Figure 5 A cross-sectional schematic diagram of a sealing plug provided in an embodiment of the present application. During the actual installation process, it is necessary to first place the down lead cable 3 and the sealing plug 14 in the first groove 111, and the annular protrusion 141 on the side of the sealing plug 14 cooperates with the third groove 1131 on the corresponding elastic gasket 113 on the inner wall of the first groove 111, and then place the steel pipe 2 in the second groove 112, and then snap the shell 11 together. Since the annular protrusion 141 on the side of the sealing plug 14 cooperates with the third groove 1131 on the corresponding elastic gasket 113 on the inner wall of the first through hole 12, the sealing plug 14 is not easy to fall off after the shell 11 is snapped together.

[0047] In some embodiments, in order to achieve a good sealing effect, a truncated cone-shaped protrusion 142 is provided on the circumference of the sealing plug 14. The size of the truncated cone-shaped protrusion 142 close to the second through hole 13 is smaller than the size away from the second through hole 13. The elastic gasket 113 on the inner wall of the first groove 111 is provided with a third groove 1132 that matches the truncated cone-shaped protrusion 142. Figure 6 This is a cross-sectional schematic diagram of another sealing plug provided in an embodiment of the present application. A truncated cone-shaped protrusion 142 is provided at one end of the sealing plug 14. During actual installation, after the housing 11 is fastened and secured, the end of the sealing plug 14 with the truncated cone-shaped protrusion 142 is inserted into the first through-hole 12. The sealing plug 14 is then pushed firmly into the first through-hole 12. Because the sealing plug 14 is elastic, this shape of sealing plug 14 can be installed even after the housing 11 is fastened and secured, making installation easier. In actual operation, the sealing plug 14 can also be placed in the first through-hole 12 before the housing 11 is fastened, but this application does not impose any restrictions.

[0048] In some embodiments, the inner diameter of the first through hole 12 is between 8 and 12 mm. When the size of the downconductor cable 3 is smaller than the size of the first through hole 12, the size of the downconductor cable 3 can be increased by wrapping a sealing material around the side of the downconductor cable 3, thereby creating an interference fit between the downconductor cable 3 and the first through hole 12, achieving a better sealing effect. The sizes of the multiple first through holes 12 can be the same or different. Providing first through holes 12 with different inner diameters can avoid the need to wrap the sealing material around the downconductor cable 3, simplifying operation and achieving a better sealing effect.

[0049] In some embodiments, a sealing ring is provided at the ends of the first through hole 12 and the second through hole 13 that are away from each other, that is, where the occluder housing 1 is connected to the outside. The sealing ring is elastic and can tightly wrap the lead cable and the steel pipe 2 to achieve a good sealing effect.

[0050] In some embodiments, corresponding positioning columns 15 and positioning holes 16 are provided on the relative walls of the two shells 11, which are used to position the two shells 11 before fixation. Corresponding outwardly extending connecting lugs 17 are provided at the junction of the two shells 11, and connecting lugs 17 are provided with connecting holes 18. Bolts cooperate with the connecting holes 18 to fix the two shells 11. During actual use, after the down-lead cable 3 and the steel pipe 2 are placed in the two shells 11 and the two elastic gaskets 113 respectively, the bolts are inserted into the two connecting holes 18 and fixed with the bolts.

[0051] In some embodiments, the occluder housing 1 is made of metal material to protect the internal elastic gasket 113 , the steel pipe 2 , and the downconductor cable 3 .

[0052] The down-lead cable plugger provided in the embodiment of the present application realizes separate sealing of multiple down-lead cables by setting multiple first through holes, with good sealing effect. The unused first through holes are sealed with a sealing plug, thereby realizing flexible adjustment of the number of first through holes, and the inner diameter of the first through hole is optional, which has a wider range of applications.

[0053] This article uses specific examples to illustrate the principles and implementation methods of this application. The description of the above embodiments is only used to help understand the method and core ideas of this application. The above is only the preferred implementation method of this application. It should be pointed out that due to the limitations of textual expression, there are objectively infinite specific structures. For ordinary technicians in this technical field, without departing from the principles of the present invention, they can also make several improvements, modifications or changes, and can also combine the above technical features in an appropriate manner; these improvements, modifications, changes or combinations, or the direct application of the inventive concept and technical solution to other occasions without improvement, should be regarded as the scope of protection of this application.

Claims

1. A down-conducting cable plugger, characterized in that: include: An occluder housing (1), the interior of the occluder housing (1) being hollow, and the occluder housing (1) comprising two detachably connected shells (11); One end of each shell (11) includes a plurality of first grooves (111), and the other end is provided with a second groove (112), the first groove (111) and the second groove (112) both extend into the interior of the shell (11), and the second groove (112) is communicated with the plurality of first grooves (111); The corresponding first grooves (111) of the two shells (11) are respectively connected to form a plurality of first through holes (12), the inner diameter of the first through hole (12) is adapted to a single down-conducting cable (3), the first through hole (12) is used for the single down-conducting cable (3) to pass through, and a corresponding sealing plug (14) is detachably provided inside the first through hole (12); The corresponding second grooves (112) of the two shells (11) are connected to form a second through hole (13). The inner diameter of the second through hole (13) is adapted to the steel pipe (2) sleeved on the outside of the down conductor cable (3). The second through hole (13) is used for the steel pipe (2) to pass through.

2. The down conductor cable plugger according to claim 1, characterized in that: The inner wall of the first groove (111) and the inner wall of the second groove (112) are both provided with elastic gaskets (113), and the elastic gaskets (113) are tightly fitted with the housing (11).

3. The down conductor cable plug according to claim 2, characterized in that: An annular protrusion (141) is provided on the circumferential side of the sealing plug (14), and a third groove (1131) matching the shape of the annular protrusion (141) is provided on the elastic gasket (113) on the inner wall of the first groove (111).

4. The down conductor cable plugger according to claim 2, characterized in that: A truncated cone-shaped protrusion (142) is provided on the circumferential side of the sealing plug (14), and the size of the truncated cone-shaped protrusion (142) close to the second through hole (13) is smaller than the size away from the second through hole (13). A snap-fit ​​structure (1132) that cooperates with the truncated cone-shaped protrusion (142) is provided on the elastic gasket (113) on the inner wall of the first groove (111).

5. The down conductor cable plugger according to claim 3 or 4, characterized in that: The sealing plug (14) is adapted to the size of the first through hole (12).

6. The down conductor cable plugger according to claim 5, characterized in that: The inner diameter of the first through hole (12) is between 8 and 12 mm.

7. The down conductor cable plug according to claim 1, characterized in that: A sealing ring is provided at each end of the first through hole (12) and the second through hole (13) that are away from each other.

8. The down conductor cable plugger according to claim 1, characterized in that: The sealing plug (14) is made of elastic material.

9. The down conductor cable plugger according to claim 2, characterized in that: The inner wall of the first groove (111) and the inner wall of the second groove (112) are sequentially spaced apart with fourth grooves (114); the elastic gasket (113) is provided with a first convex strip (1133) that engages with the fourth groove (114) on one side close to the occluder housing (1), and a second convex strip (1134) is provided on the other side; the second convex strip (1134) is used to abut against the outer wall of the down-lead cable (3) or the steel pipe (2).

10. The down conductor cable plugger according to claim 1, characterized in that: Corresponding positioning columns (15) and positioning holes (16) are provided on the walls of the two shells (11) that are in contact with each other. Corresponding outwardly extending connecting lugs (17) are provided at the junction of the two shells (11), and connecting holes (18) are provided on the connecting lugs (17).

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