Plugging device for cable threading pipe

Abstract

The utility model provides a plugging device for a cable threading pipe, which comprises a sealing sleeve and a plugging cylinder sleeved outside the sealing sleeve, a detachable locking sleeve is sleeved outside the plugging cylinder, one end of the plugging cylinder is provided with a pressing ring used for limiting the sealing sleeve, the other end of the plugging cylinder is provided with a connecting part capable of being matched with the locking sleeve, the connecting part is provided with a deformation groove, and the deformation groove is matched with the locking sleeve. The hold-down ring is detachably mounted on the plugging cylinder; one end, facing the locking sleeve, of the sealing sleeve is provided with a first sealing part used for filling a gap between the pressing ring and the cable, and the other end of the sealing sleeve is provided with a second sealing part used for filling a gap between the connecting part and the threading pipe, and a third sealing part used for filling a gap between the threading pipe and the cable. And an insertion gap matched with the threading pipe exists between the second sealing part and the third sealing part. The plugging device for the cable threading pipe has the advantages of being easy to assemble and adjust, capable of being used for plugging the cable threading pipe, and good in plugging and sealing effect.

Description

TECHNICAL FIELD

[0001] The utility model belongs to cable protection technical field especially, it is related to a kind of plugging device for cable duct. BACKGROUND

[0002] Wire and cable are used to transmit electric energy, information and realize electromagnetic energy conversion wire products.Power cable geographic laying engineering, cable shuttles in threading pipe, then threading pipe is directly buried with soil or concrete, generally normal specification requires that the inner diameter of threading pipe needs to be greater than the outer diameter of cable, resulting in that there is gap after cable is placed into threading pipe, and in order to prevent sewage, rainwater from flowing into pipe, causing cable to be soaked in water for a long time, or in order to prevent small animals from entering and gnawing and damaging cable, plugging device needs to be set to plug the end of threading pipe, and if filling way is used to plug, although plugging sealing effect is good, but after plugging, it will affect the disassembly of cable, leading to subsequent replacement and maintenance of cable are more inconvenient, and if detachable plugging device is used, existing plugging device has the problem of poor plugging sealing effect. SUMMARY

[0003] Therefore, the utility model aims at providing a kind of plugging device for cable duct to solve the problem of poor plugging sealing effect of existing detachable plugging device for cable duct.

[0004] To achieve the above-mentioned purpose, the technical scheme of the utility model is as follows:

[0005] A kind of plugging device for cable duct, including sealing sleeve and the sealing sleeve outer sleeve of plugging cylinder, the plugging cylinder outer sleeve is equipped with detachable locking sleeve, plugging cylinder one end is equipped with the compression ring for limiting sealing sleeve, the other end is equipped with the connecting part that can cooperate with locking sleeve, the connecting part is equipped with deformation groove, and the compression ring is detachably installed on plugging cylinder;The first sealing part for filling the gap between compression ring and cable is arranged on the one end of sealing sleeve towards locking sleeve, the second sealing part for filling the gap between connecting part and threading pipe and the third sealing part for filling the gap between threading pipe and cable are arranged on the other end, and there is insertion gap matched with threading pipe between the second sealing part and the third sealing part.

[0006] Further, the side of the first sealing part towards the compression ring is provided with an outer inclined surface.

[0007] Further, the inner side of the compression ring is provided with an arc surface part matched with the outer inclined surface of the first sealing part.

[0008] Further, the compression ring and the plugging cylinder are screw-connected, the compression ring is provided with handle slot, and the handle slot is evenly provided with at least two along the circumference of the compression ring.

[0009] Further, the locking sleeve is in threaded connection with the connecting part, and the locking sleeve is externally provided with a clamping groove.

[0010] Further, the locking sleeve is internally provided with a protruding part for abutting against the compression ring, and the protruding part is circumferentially and uniformly provided with at least two.

[0011] Further, the sealing sleeve is internally and spacedly provided with a plurality of sealing rings, and each sealing ring is coaxially arranged on the sealing sleeve.

[0012] Further, the second sealing part is provided with a tapered end for facilitating insertion between the connecting part and the threading pipe.

[0013] Further, the third sealing part is provided with an inner inclined surface capable of cooperating with the threading pipe.

[0014] Further, the deformation groove is circumferentially and uniformly provided with at least two.

[0015] Compared with the prior art, the plugging device for the cable threading pipe has the following advantages:

[0016] The plugging device for the cable threading pipe has the advantages of easy assembly and adjustment, can be used for plugging the cable threading pipe, and has good plugging and sealing effects. The sealing sleeve is sleeved with the plugging cylinder, the compression ring and the locking ring are arranged on the plugging cylinder, the compression ring can ensure that the sealing sleeve is more closely attached to the cable and the threading pipe, thereby improving the sealing effect, the locking ring can not only fix the plugging cylinder and the sealing sleeve, but also limit the compression ring to prevent the compression ring from loosening, thereby improving the reliability and stability of the plugging device in use. In addition, the plurality of sealing parts arranged on the sealing sleeve realize multi-stage sealing of the end part of the threading pipe, which is conducive to further improving the plugging and sealing effect of the plugging device on the end part of the threading pipe. BRIEF DESCRIPTION OF DRAWINGS

[0017] The drawings constituting a part of this utility model are used to provide a further understanding of the utility model, and the schematic embodiments of the utility model and the description thereof are used to explain the utility model, and do not constitute an improper limitation on the utility model. In the drawings:

[0018] Fig. 1 It is a structure schematic view of the plugging device for the cable threading pipe according to the utility model embodiment;

[0019] Fig. 2 It is an explosion view of the plugging device for the cable threading pipe according to the utility model embodiment;

[0020] Fig. 3 It is a sectional view of the plugging device for the cable threading pipe according to the utility model embodiment.

[0021] Explanation of reference signs:

[0022] 1, cable; 2, threading pipe; 3, locking sleeve; 4, protruding part; 5, compression ring; 6, sealing sleeve; 7, clamping groove; 8, handle groove; 9, first sealing part; 10, second sealing part; 11, blocking cylinder; 12, sealing ring; 13, connecting part; 14, deformation groove; 15, third sealing part; 16, cambered surface part. DETAILED DESCRIPTION

[0023] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict.

[0024] In the description of the present application, it should be understood that the orientation or position relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second" and the like are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features limited by "first", "second" and the like can explicitly or implicitly include one or more of the features. In the description of the present application, unless otherwise specified, the meaning of "a plurality of" is two or more.

[0025] In the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the communication between two elements. For ordinary skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0026] The present application will be described in detail below with reference to the drawings and in combination with the embodiments.

[0027] A kind of cable threading pipe blocking device, such as Figs. 1 to 3As shown, the sealing sleeve 6 is sleeved on the cable 1, and the sealing sleeve 6 is sleeved with the blocking barrel 11, the blocking barrel 11 is sleeved with the detachable locking sleeve 3, one end of the blocking barrel 11 is provided with the compression ring 5 for limiting the sealing sleeve 6, and the other end is provided with the connecting part 13 capable of cooperating with the locking sleeve 3, the connecting part 13 is provided with the deformation groove 14, and the compression ring 5 is detachably mounted on the blocking barrel 11; one end of the sealing sleeve 6 towards the locking sleeve 3 is provided with the first sealing part 9 for filling the gap between the compression ring 5 and the cable 1, the other end is provided with the second sealing part 10 for filling the gap between the connecting part 13 and the threading pipe 2 and the third sealing part 15 for filling the gap between the threading pipe 2 and the cable 1, and the second sealing part 10 and the third sealing part 15 are provided with the insertion gap cooperating with the threading pipe 2.

[0028] For example, in order to ensure that the connecting part 13 can be better clamped and fixed to the threading pipe 2 under the action of the locking sleeve 3, the deformation groove 14 is uniformly provided at least two circumferentially along the blocking barrel 11, and the inner side of the connecting part 13 can be provided with an inclined surface or a protrusion, so that after the locking sleeve 3 is mounted on the connecting part 13, the connecting part 13 can better clamp and fix the sealing sleeve 6 and the threading pipe 2, and ensure that the blocking barrel 11 can be stably mounted and fixed on the threading pipe 2. Those skilled in the art can also set the shape of the connecting part 13 and the number of the deformation grooves 14 thereon according to actual needs, so that the connecting part 13 can clamp and fix the sealing sleeve 6 and the threading pipe 2 by deformation under the action of the locking ring. Here, it will not be described again.

[0029] In actual application process, the operator can first sleeve the sealing sleeve 6 on the threading pipe 2, and make the third sealing part 15 on the sealing sleeve 6 inserted into the gap between the threading pipe 2 and the cable 1. Then, the operator can sleeve the blocking barrel 11 on the sealing sleeve 6, and install the locking ring and the compression ring 5 on the blocking barrel 11, wherein the locking ring clamps and fixes the threading pipe 2 by cooperating with the connecting part 13, which can realize the fixation of the blocking barrel 11; and the compression ring 5 can be used to push the sealing sleeve 6 in the blocking barrel 11 to further adhere to the end of the threading pipe 2, and ensure the blocking effect of the sealing sleeve 6 on the end of the threading pipe 2.

[0030] Preferably, the first sealing part 9 is provided with an outer inclined surface towards the compression ring 5. Specifically, the outer inclined surface is provided with an end inclined downward towards the cable 1 extending out of the left end of the blocking barrel 11. By providing the outer inclined surface on the first sealing part 9, when the operator installs the compression ring 5 on the blocking barrel 11, the inner side of the compression ring 5 cooperates with the outer inclined surface on the first sealing part 9, which not only can push the sealing sleeve 6 to further adhere to the threading pipe 2, thereby realizing the sealing of the gap between the threading pipe 2 and the cable 1, but also can extrude and push the first sealing part 9, so that the inner side of the sealing sleeve 6 can more closely adhere to the cable 1, thereby improving the sealing performance between the sealing sleeve 6 and the cable 1.

[0031] In actual application, the inner side of the compression ring 5 is provided with an arc surface part 16 matched with the outer inclined surface of the first sealing part 9. By arranging the arc surface part 16 on the inner side of the compression ring 5, the matching effect of the compression ring 5 and the first sealing part 9 is improved, the compression ring 5 can better compress and fix the sealing sleeve 6, and the sealing effect of the sealing sleeve 6 on the end of the threading pipe 2 is further improved.

[0032] Preferably, the compression ring 5 is threadedly connected with the blocking cylinder 11, the compression ring 5 is provided with handle grooves 8, and the handle grooves 8 are evenly arranged circumferentially on the compression ring 5. For example, the compression ring 5 is provided with external threads, and the blocking cylinder 11 is provided with internal threads. By threadedly connecting the compression ring 5, the operator can insert a rod or other tools into the handle grooves 8 to screw the compression ring 5, so as to adjust the compression ring 5 and ensure the compression and fixing effect of the compression ring 5 on the sealing ring.

[0033] In actual application, the handle grooves 8 can be evenly arranged two, three or more. By arranging multiple handle grooves 8, the operator can select a suitable handle groove 8 to install a rod or other tools according to actual needs, which facilitates the operator to assemble and screw the compression ring 5 in a small space, is more convenient to operate, and reduces the assembly difficulty of the blocking device.

[0034] Preferably, the locking sleeve 3 is threadedly connected with the connecting part 13, and the outer side of the locking sleeve 3 is provided with clamping grooves 7. For example, the locking sleeve 3 is provided with internal threads, and the connecting part 13 is provided with external threads. By threadedly connecting the locking sleeve 3, the assembly of the locking sleeve 3 is facilitated. With the screwing of the locking sleeve 3, the locking sleeve 3 can also extrude the connecting part 13, so that the connecting part 13 can clamp and fix the sealing sleeve 6 and the blocking cylinder 11, and the blocking cylinder 11 is fixed on the threading pipe 2.

[0035] In actual application, the inner side of the locking sleeve 3 is provided with a protruding part 4 used for pressing the compression ring 5, and the protruding part 4 is evenly arranged circumferentially on the locking sleeve 3. For example, the protruding part 4 can be evenly arranged two, and the two protruding parts 4 have an operation gap facilitating the operator to rotate the compression ring 5 by using tools. By evenly arranging two protruding parts 4 and reserving an operation gap between the two protruding parts 4, the operator can still rotate and adjust the compression ring 5 through the operation gap after the locking ring is installed, the adjustment difficulty of the blocking device is reduced, and the overall sealing effect of the blocking device after installation is improved.

[0036] Specifically, when the blocking cylinder 11 is sleeved on the sealing sleeve 6, the operator can first manually or by using a tool to fix the blocking cylinder 11, and then install the compression ring 5 to position the left end of the sealing sleeve 6 by using the compression ring 5. Then the operator can install the sealing sleeve 6 and the blocking cylinder 11 on the threading pipe 2, and make the cable 1 pass through the sealing sleeve 6. Finally, the operator can screw the locking sleeve 3, and realize the preliminary fixation of the blocking cylinder 11 by using the locking sleeve 3 cooperating with the connecting part 13.

[0037] In actual use, in order to further improve the sealing effect of the sealing sleeve 6, the operator can also continue to screw the compression ring 5 by using a tool to ensure that the compression ring 5 can further extrude the sealing sleeve 6 to improve the sealing effect, and the operator can also continue to screw the locking ring to improve the fixing effect of the locking ring on the blocking cylinder 11. In addition, the protruding part 4 on the locking ring can also abut against the left end of the compression ring 5, thereby achieving good limiting effect on the compression ring 5, which is beneficial to prevent the compression ring 5 from loosening.

[0038] Preferably, a plurality of sealing rings 12 are arranged at intervals in the sealing sleeve 6, and each sealing ring 12 is arranged coaxially in the sealing sleeve 6. Exemplarily, the sealing ring 12 is integrally formed with the sealing sleeve 6 and can be made of rubber or silicone. By arranging a plurality of sealing rings 12 at intervals, a multi-layer sealing structure can be formed inside the sealing sleeve 6, which is beneficial to improve the sealing performance of the sealing sleeve 6 at the bonding part with the cable 1.

[0039] Preferably, the second sealing part 10 is provided with a tapered end which is convenient for being inserted between the connecting part 13 and the threading pipe 2, so as to facilitate the insertion of the second sealing part 10 into the gap between the connecting part 13 and the threading pipe 2, which is beneficial to reduce the assembly difficulty of the sealing sleeve 6.

[0040] Preferably, the third sealing part 15 is provided with an inner inclined surface which can cooperate with the threading pipe 2. Specifically, the end of the inner inclined surface which is inclined downward is arranged towards the cable 1 at the right end of the blocking sleeve. Before assembly, the end part of the threading pipe 2 can also be chamfered, so as to facilitate the insertion of the second sealing part 10 and make the threading pipe 2 better cooperate with the inner inclined surface on the third sealing part 15, which is beneficial to reduce the assembly difficulty of the sealing sleeve 6 and further improve the sealing effect at the bonding part of the third sealing part 15 with the threading pipe 2.

[0041] In actual application, by arranging the inner inclined surface on the third sealing part 15, the inner inclined surface on the third sealing part 15 can also cooperate with the inside of the threading pipe 2 under the pushing of the compression ring 5. Under the extrusion of the threading pipe 2, the inside of the sealing sleeve 6 can be more closely bonded with the cable 1. In cooperation with the extrusion of the second sealing part 10, the left and right ends of the sealing sleeve 6 can both achieve close bonding with the cable 1, which further improves the sealing effect between the sealing sleeve 6 and the cable 1.

[0042] In addition, the second sealing part 10 can be clamped and fixed by the outer wall of the threading pipe 2 and the connecting part 13, which is beneficial to improve the sealing performance between the right end of the plugging cylinder 11 and the threading pipe 2, cooperates with the extrusion of the compression ring 5 on the sealing sleeve 6, and the second sealing part 10, the sealing sleeve 6 and the third sealing part 15 can form three levels of sealing at the end of the threading pipe 2, which improves the plugging and sealing effect of the plugging device on the end of the threading pipe 2 and is easy to assemble.

[0043] The utility model discloses a kind of plugging devices for cable threading pipe, with the advantages of easy assembly and adjustment, can be used for the plugging of cable threading pipe, and plugging and sealing effect is good. By being equipped with plugging cylinder on the sealing sleeve outer cover, and being equipped with compression ring and locking ring on the plugging cylinder, wherein the compression ring can ensure that the sealing sleeve is more closely combined with cable and threading pipe, to improve sealing effect, and the locking ring not only can be fixed to plugging cylinder and sealing sleeve, but also can be positioned to compression ring to a certain extent, prevent compression ring from loosening, improve the reliability and stability of this plugging device when use. In addition, by being equipped with multiple sealing parts on the sealing sleeve, multi-stage sealing to the end of threading pipe is realized, which is beneficial to further improve the plugging and sealing effect of this plugging device on the end of threading pipe.

[0044] The above is only the preferred embodiment of the utility model, and does not limit the utility model, and any modification, equivalent replacement, improvement, etc. within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A sealing device for cable ducts, characterized in that: The utility model relates to a cable sealing device, which comprises a sealing sleeve (6) and a blocking cylinder (11) sleeved on the sealing sleeve (6), the blocking cylinder (11) is sleeved with a detachable locking sleeve (3), one end of the blocking cylinder (11) is provided with a compression ring (5) for limiting the sealing sleeve (6), the other end is provided with a connecting part (13) capable of cooperating with the locking sleeve (3), the connecting part (13) is provided with a deformation groove (14), and the compression ring (5) is detachably mounted on the blocking cylinder (11); one end of the sealing sleeve (6) towards the locking sleeve (3) is provided with a first sealing part (9) for filling the gap between the compression ring (5) and the cable (1), the other end is provided with a second sealing part (10) for filling the gap between the connecting part (13) and the cable tube (2) and a third sealing part (15) for filling the gap between the cable tube (2) and the cable (1), and there is an insertion gap between the second sealing part (10) and the third sealing part (15) for cooperating with the cable tube (2).

2. A closure device for cable ducts according to claim 1, characterized in that: The first sealing part (9) is provided with an outer inclined surface towards the compression ring (5).

3. A closure device for cable ducts according to claim 2, characterized in that: The inner side of the compression ring (5) is provided with an arc surface part (16) matched with the outer inclined surface of the first sealing part (9).

4. A closure device for cable ducts according to any one of claims 1-3, characterized in that: The compression ring (5) is in threaded connection with the blocking cylinder (11), the compression ring (5) is provided with a handle groove (8), and the handle groove (8) is uniformly provided with at least two along the circumference of the compression ring (5).

5. A closure device for cable ducts according to claim 4, characterized in that: The locking sleeve (3) is in threaded connection with the connecting part (13), and the outer side of the locking sleeve (3) is provided with a clamping groove (7).

6. A closure device for cable ducts according to claim 5, characterized in that: The inner side of the locking sleeve (3) is provided with a protruding part (4) for pressing against the compression ring (5), and the protruding part (4) is uniformly provided with at least two along the circumference of the locking sleeve (3).

7. A closure device for cable ducts according to claim 1, characterized in that: The inner side of the sealing sleeve (6) is provided with a plurality of sealing rings (12) at intervals, and each sealing ring (12) is coaxially arranged on the sealing sleeve (6).

8. A closure device for cable pulling tubes according to claim 1, characterized in that: The second sealing part (10) is provided with a tapered end for facilitating insertion between the connecting part (13) and the cable tube (2).

9. A closure device for cable pulling tubes according to claim 1, characterized in that: The third sealing part (15) is provided with an inner inclined surface capable of cooperating with the cable tube (2).

10. A closure device for cable pulling tubes according to claim 1, characterized in that: The deformation groove (14) is uniformly provided with at least two along the circumference of the blocking cylinder (11).

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