Sealing waterproof plug device for power pipeline
By combining a rotating shaft mechanism and air pressure regulation, the sealing problem of traditional power pipeline sealing plugs under temperature difference and vibration environments is solved, providing an efficient and stable dynamic sealing effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-06
- Publication Date
- 2026-04-10
AI Technical Summary
Traditional power pipeline sealing plugs lack dynamic adjustment capabilities and cannot maintain effective sealing under temperature changes or vibration environments. Furthermore, existing adjustable structures are inconvenient to operate or have poor stability.
A rotating shaft mechanism is used to drive the sealing block to achieve a preliminary mechanical seal. The pressure pipe fittings for air pressure regulation are combined to enhance the dynamic seal, and the limit mechanism ensures operational safety, thus achieving a dual seal of mechanical and air pressure.
It achieves efficient waterproof sealing under temperature difference and vibration environment, is easy to operate and has a stable structure, and meets the dynamic sealing requirements of power pipelines.
Smart Images
Figure CN224110814U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to power pipeline technical field more specifically, the utility model relates to a kind of power pipeline sealing waterproof plug device. BACKGROUND
[0002] As an important component of cable protection system, the reliability of the end sealing of power pipeline is directly related to the safe operation of power equipment. Traditional power pipeline sealing plug mostly adopts fixed structure, such as sealing by rubber washer or rigid compression device. However, the traditional plug is usually designed with fixed sealing structure, lacking dynamic adjustment capability. In the case of temperature difference change or vibration environment, material aging or displacement may further weaken the sealing performance.
[0003] Although attempts have been made to introduce air pressure sealing or adjustable structure in the prior art, most of the schemes still have problems such as limited adjustment range, inconvenient operation or complex structure. For example, some air pressure sealing devices rely on external air pump for pressure supply, which cannot achieve rapid response. The mechanical adjustment mechanism often lacks limit design, causing over-adjustment or disengagement of the sealing block, affecting stability. SUMMARY
[0004] To solve the above technical problems, the utility model provides a kind of power pipeline sealing waterproof plug device, including the plug pipe of one end closure other end is equipped with opening, the plug pipe opening is covered in the outside of the end of power pipeline, and the sealing block that moves back and forth is arranged in the inside of plug pipe, the end of sealing block away from opening is installed with the rotation shaft mechanism of pushing sealing block moves, the rotation shaft mechanism extends device plug pipe outside through plug pipe, a plurality of sealing grooves are set up on the outer wall of sealing block and plug pipe adhesion, the rubber hose with hollow inside is embedded in the sealing groove, the air pipe that is communicated with the inside of rubber hose is inserted in sealing block, the air pipe extends towards the side of plug pipe closure, the pressure pipe fitting that adjusts the internal pressure of rubber hose is installed at the end of air pipe, and the pressure pipe fitting is inserted in the end of plug pipe.
[0005] In a preferred embodiment, the end of the sealing block towards the opening is provided with a tapered pressure head with a diameter that decreases, and the outer side of the tapered pressure head is provided with a retaining ring fixed on the inner wall of the plug pipe. A rubber sealing ring is arranged between the retaining ring and the tapered pressure head.
[0006] In a preferred embodiment, the rotation shaft mechanism includes a first screw rod penetrating through the plug pipe, a first screw pipe is sleeved outside the first screw rod and fixed on the end of the plug pipe, a bearing is sleeved on the end of the first screw rod inside the plug pipe, the bearing is fixed on the end of the sealing block, and a turntable is installed on the end of the first screw rod outside the plug pipe.
[0007] In a preferred embodiment, the pressure pipe component comprises a telescopic pipe connected to the end of the air pipe and a piston pipe inserted into the end of the plug pipe, the piston pipe, the telescopic pipe and the air pipe are in internal communication, a piston moving back and forth is installed inside the piston pipe, and a piston rod connected with the piston extends through the piston pipe to the outside of the piston pipe.
[0008] In a preferred embodiment, a knob is installed at the end of the piston rod outside the piston pipe, a second screw pipe is sleeved outside the piston rod, the second screw pipe is fixed at the end of the piston pipe, and threads matched with the second screw pipe are arranged on the outer wall of the piston rod.
[0009] In a preferred embodiment, a limiting rod is further installed at the end of the sealing block away from the opening, and a limiting pipe fixed on the inner wall of the plug pipe is sleeved outside the limiting rod.
[0010] Technical effects and advantages of the utility model:
[0011] The utility model sets up the pivot mechanism drive sealing block to realize the primary mechanical seal, the pressure pipe component enhances dynamic sealing through the air pressure adjustment, the limiting mechanism guarantees the operation safety, through mechanical and air pressure double effect, the waterproof sealing problem of the electric power pipeline is solved efficiently. BRIEF DESCRIPTION OF DRAWINGS
[0012] Fig. 1 It is the whole structure schematic diagram of the utility model;
[0013] Fig. 2 It is the plug pipe inside schematic diagram of the utility model;
[0014] Fig. 3 It is the plug pipe inside and sealing block inside schematic diagram of the utility model.
[0015] Mark explanation: 1 opening, 2 plug pipe, 3 sealing block, 4 sealing groove, 5 rubber hose, 6 air pipe, 7 conical pressure head, 8 check ring, 9 rubber sealing ring, 10 first screw rod, 11 first screw pipe, 12 bearing, 13 turntable, 14 telescopic pipe, 15 piston pipe, 16 piston rod, 17 piston, 18 knob, 19 second screw pipe, 20 limiting rod, 21 limiting pipe. DETAILED DESCRIPTION
[0016] The utility model will be further explained in detail in combination with the drawings and specific embodiment. The embodiment of the utility model is given for example and description, and is not exhaustive or limit the utility model to the disclosed form. Many modifications and changes are obvious to those skilled in the art. The embodiment is selected and described to better illustrate the principle and practical application of the utility model, and to enable those skilled in the art to understand the utility model so as to design various embodiments with various modifications suitable for specific purposes.
[0017] As Figs. 1-3 The utility model provides a kind of waterproof plug device of electric power pipeline sealing, including the plug pipe 2 of one end closure other end is equipped with opening 1, plug pipe 2 opening 1 is sleeved in the outside of electric power pipeline end, sealing block 3 is arranged in the inside of plug pipe 2 to and fro, the end of sealing block 3 away from opening 1 is equipped with the rotation shaft mechanism of sealing block 3 movement, rotation shaft mechanism extends device plug pipe 2 outside, it is equipped with several sealing grooves 4 on the outer wall that sealing block 3 is attached with plug pipe 2, hollow rubber hose 5 is embedded in the sealing groove 4, air pipe 6 is inserted in sealing block 3 and is communicated with the inside of rubber hose 5, air pipe 6 extends towards the side that plug pipe 2 is closed, pressure pipe fitting is installed at air pipe 6 end and is adjusted to the internal gas pressure of rubber hose 5, and pressure pipe fitting is inserted in the end of plug pipe 2.
[0018] Based on the above, plug pipe 2 is sleeved in electric power pipeline end after opening 1, rotation shaft mechanism drives sealing block 3 to move along the inner wall of plug pipe 2, so that the rubber hose 5 of sealing block 3 outer wall is contacted with the gap between pipeline;Pressure pipe fitting is adjusted to the internal gas pressure of rubber hose 5 by air pipe 6, realizes expansion sealing or contraction disassembly.
[0019] The end of sealing block 3 towards opening 1 is provided with the tapering head 7 of diameter shrinkage and small, the outside of tapering head 7 is provided with the stop ring 8 fixed on the inner wall of plug pipe 2, and the rubber sealing ring 9 is arranged between the stop ring 8 and the tapering head 7;
[0020] Based on the above, when sealing block 3 moves, tapering head 7 is gradually pressed tightly stop ring 8, extrudes the rubber sealing ring 9 in the middle, forms the first mechanical seal, prevents external moisture from seeping from the gap between plug pipe 2 and electric power pipeline.
[0021] The rotation shaft mechanism includes the first screw rod 10 that penetrates plug pipe 2, the first screw pipe 11 of first screw rod 10 outside is sleeved and is fixed in the end of plug pipe 2, the end of first screw rod 10 in the inside of plug pipe 2 is sleeved with bearing 12, the end of bearing 12 is fixed in sealing block 3, and the end of first screw rod 10 on the outside of plug pipe 2 is equipped with rotating disc 13;
[0022] Based on the above, when rotating disc 13 is rotated, first screw rod 10 is threadedly cooperated with first screw pipe 11, drives first screw rod 10 to move axially;Bearing 12 reduces the friction resistance when screw rod rotates, so that sealing block 3 is pushed or retreated stably, realizes the accurate position adjustment of sealing block 3.
[0023] The pressure pipe fitting comprises a telescopic pipe 14 connected at the end of the air pipe 6 and a piston 17 pipe 15 inserted at the end of the plug pipe 2, the piston 17 pipe 15, the telescopic pipe 14 and the air pipe 6 are in internal communication, the piston 17 pipe 15 is internally provided with a piston 17 moving back and forth and a piston rod 16 connected with the piston 17, the piston rod 16 extends through the piston 17 pipe 15 to the outside of the piston 17 pipe 15;
[0024] Based on the above, when the piston rod 16 is pushed or rotated, the piston 17 moves in the piston 17 pipe 15, the internal air pressure is changed; the pressure is transmitted to the rubber hose 5 through the air pipe 6 and the telescopic pipe 14 to control the expansion or contraction of the rubber hose 5, and dynamically adapt to the gap change between the pipes.
[0025] A knob 18 is installed at the end of the piston rod 16 outside the piston 17 pipe 15, a second screw pipe 19 is sleeved outside the piston rod 16, the second screw pipe 19 is fixed at the end of the piston 17 pipe 15, and a thread is arranged on the outer wall of the piston rod 16 matched with the second screw pipe 19;
[0026] Based on the above, when the knob 18 is rotated, the piston rod 16 is matched with the second screw pipe 19 through the thread, which is converted into the linear motion of the piston 17, the fine adjustment of the air pressure is realized, and the sealing failure caused by the sudden change of the air pressure is avoided.
[0027] A limiting rod 20 is further installed at the end of the sealing block 3 away from the opening 1, and a limiting pipe 21 is sleeved and fixed on the inner wall of the plug pipe 2 outside the limiting rod 20;
[0028] Based on the above, the limiting rod 20 is matched with the limiting pipe 21 to limit the movement stroke of the sealing block 3, prevent the excessive extrusion or separation of the conical pressure head 7 and the check ring 8 caused by excessive advance or retreat, and ensure the stability of the sealing structure.
[0029] Further, the working process of the device is as follows:
[0030] Installation and preliminary sealing: the opening 1 end of the plug pipe 2 is sleeved on the end of the power pipeline, the first screw rod 10 is rotated by rotating the rotating disc 13, since the first screw rod 10 is matched with the first screw pipe 11 through the thread, the rotation of the screw rod will push the sealing block 3 to move along the inner wall of the plug pipe 2 to the opening 1 end, the conical pressure head 7 at the front end of the sealing block 3 contacts the check ring 8 in the plug pipe 2, extrudes the rubber sealing ring 9 in the middle, and forms the preliminary mechanical sealing.
[0031] Air pressure enhanced sealing: Hollow rubber hose 5 is embedded in sealing groove 4 of outer wall of sealing block 3, communicates with pressure pipe through air pipe 6, rotates knob 18 at the end of rotating piston rod 16, drives piston 17 to move in piston 17 pipe 15, adjusts the air pressure in rubber hose 5. When the air pressure increases, the rubber hose 5 expands and tightly fits the gap between the plug pipe 2 and the power pipeline, forming a secondary dynamic seal; when the air pressure decreases, the rubber hose 5 contracts to facilitate disassembly or adjustment.
[0032] Limiting and stability: The limiting rod 20 at the tail of the sealing block 3 cooperates with the limiting pipe 21 to ensure that the movement range of the sealing block 3 is controllable, and to avoid excessive displacement leading to structural damage. The bearing 12 is designed to reduce friction resistance when the screw rotates, improving the smoothness of operation.
[0033] Obviously, the described embodiments are only a part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary skilled in the art and related fields without creative labor should belong to the scope of protection of the utility model. The structures, devices and operation methods not specifically described and explained in the utility model, such as without special description and limitation, are implemented according to the conventional means in the art.
Claims
1. An electrical conduit sealing and waterproofing cap device, characterized by, The utility model provides a sealing device for power pipeline, including one end closed the other end is equipped with the plug pipe of opening, plug pipe opening is sleeved outside the end of power pipeline, is provided with the sealing block that removes in the inside of plug pipe, sealing block far from the end of opening is equipped with the rotation shaft mechanism that removes sealing block and moves, rotation shaft mechanism extends device plug pipe outside through plug pipe, a plurality of sealing grooves are seted up on the outer wall that sealing block and plug pipe are pasted, hollow rubber hose is embedded in the sealing groove, the trachea that is inserted with rubber hose inside communicates with the inside, trachea extends towards the side that plug pipe is closed, pressure pipe spare is installed to the end of trachea and adjusts the pressure of rubber hose inside, pressure pipe spare is inserted in the end of plug pipe.
2. A power conduit sealing and waterproofing cap device according to claim 1, characterized in that: The end of the sealing block towards the opening is provided with a tapered pressure head with a diameter that decreases, the outer side of the tapered pressure head is provided with a retaining ring fixed on the inner wall of the plug pipe, and a rubber sealing ring is arranged between the retaining ring and the tapered pressure head.
3. A power conduit sealing and waterproofing cap device according to claim 1, characterized in that: The rotation shaft mechanism includes a first screw rod penetrating through the plug pipe, a first screw pipe is sleeved outside the first screw rod and fixed on the end of the plug pipe, a bearing is sleeved on the end of the first screw rod inside the plug pipe, the bearing is fixed on the end of the sealing block, and a rotating disc is installed on the end of the first screw rod outside the plug pipe.
4. A power conduit sealing and waterproofing cap device according to claim 1, characterized in that: The pressure pipe spare includes a telescopic pipe connected to the end of the trachea and a piston pipe inserted into the end of the plug pipe, the piston pipe, the telescopic pipe and the trachea are in communication, a piston and a piston rod connected to the piston are installed in the piston pipe, the piston rod extends to the outside of the piston pipe through the piston pipe.
5. An electrical conduit sealing and waterproofing boss device according to claim 4, characterized in that: A knob is installed on the end of the piston rod outside the piston pipe, a second screw pipe is sleeved outside the piston rod, the second screw pipe is fixed on the end of the piston pipe, and a screw thread matched with the second screw pipe is arranged on the outer wall of the piston rod.
6. A power conduit sealing and waterproofing hub device according to claim 1, characterized in that: The end of the sealing block far from the opening is also provided with a limiting rod, and the limiting rod is sleeved with a limiting pipe fixed on the inner wall of the plug pipe.