MPP electric power pipe connecting sleeve
By setting a separator ring and positioning components inside the MPP power pipe connecting sleeve, the problems of laborious operation and damage of existing connecting sleeves are solved, achieving stable docking and sealing, and improving the efficiency and reliability of MPP power pipe connections.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-21
- Publication Date
- 2026-03-31
AI Technical Summary
Existing MPP power pipe connection sleeves are laborious to operate and are prone to damage or breakage, resulting in inconvenient connections.
A separator ring is fixedly installed in the middle of the inner wall of the connecting sleeve, and a positioning assembly is set at the outer end, including a connecting strip, a limiting slide rod, an arc clamp, a screw rod, a rotating wheel, and a fixing block. The docking and positioning are achieved by rotating the screw rod, and the stability and sealing performance are improved by combining the limiting roller and the sealing gasket.
This achieves stable docking and positioning of MPP power pipes, avoids end damage, and improves operational efficiency and sealing effect.
Smart Images

Figure CN224068285U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of power pipe technology, and more specifically, to an MPP power pipe connector sleeve. Background Technology
[0002] MPP power pipes, also known as MPP power cable protection pipes, are divided into open-cut and trenchless types. MPP trenchless pipes are also known as MPP jacking pipes or drag pipes. MPP pipes use modified polypropylene as the main raw material and have the characteristics of high temperature resistance and external pressure resistance. They are suitable for medium and low voltage power transmission cable ducts below 10KV.
[0003] Currently, when laying MPP power pipes, the connection between two adjacent MPP power pipes is generally achieved through a connecting sleeve. However, the existing connecting sleeves usually use external extrusion to mate and position with the ends of the MPP power pipes, which makes the operation more laborious and can easily lead to damage or even breakage of the MPP power pipes.
[0004] To address the aforementioned issues, this application provides an MPP power pipe connector sleeve. Utility Model Content
[0005] The MPP power pipe connector provided in this application adopts the following technical solution:
[0006] An MPP power conduit connector includes a connecting sleeve. A separator ring is fixedly installed at the middle of the inner wall of the connecting sleeve, and a positioning assembly is provided at the outer end of the connecting sleeve. The positioning assembly includes a connecting strip located outside the connecting sleeve. Limiting slide rods are fixedly connected to both sides of one end face of the connecting strip. The two limiting slide rods are slidably sleeved through the inner cavity of the side end of the connecting sleeve. An arc-shaped clamp is fixedly connected to the end of the two limiting slide rods facing away from the connecting strip. The two arc-shaped clamps are located inside the connecting sleeve. The plates are located on both sides of the separator ring. A screw rod is threaded through the center of the connecting strip. A rotating wheel is fixedly installed at one end of the screw rod, and a fixing block is provided on the side of the screw rod facing away from the rotating wheel. The fixing block is fixedly installed at the middle of the outer surface of the connecting sleeve, and a T-shaped groove is embedded in the center of the end face of the fixing block facing away from the connecting sleeve. A T-shaped shaft is rotatably sleeved on the inner wall of the T-shaped groove. One end of the T-shaped shaft extends out of the interior of the T-shaped groove, and one end of the T-shaped shaft is fixedly connected to the end of the screw rod facing away from the rotating wheel.
[0007] Through the above technical solution, the separator ring achieves the function of limiting the insertion length of the MPP power pipe end inside the connecting sleeve.
[0008] Furthermore, the positioning components are provided in two sets, which are symmetrically distributed in the middle of the left and right sides of the connecting sleeve, and both sets of positioning components are located on the outer side of the separator ring.
[0009] Furthermore, each of the arc-shaped clamps has an arc-shaped plate structure, and a rubber anti-slip pad is fixedly installed on the inner wall of the arc-shaped surface of each arc-shaped clamp facing away from the limiting slide rod.
[0010] Through the above technical solution, the anti-slip pad can improve the anti-slip contact and positioning stability between the arc-shaped clamp and the outer surface of the MPP power pipe.
[0011] Furthermore, each of the rollers has multiple anti-slip grooves evenly formed on its outer side wall, and each anti-slip groove is an arc-shaped strip groove structure.
[0012] The above technical solution allows for convenient manual turning of the rotating wheel through the anti-slip groove.
[0013] Furthermore, multiple limiting rollers are linearly and uniformly provided on the inner walls of the upper and lower sides of both ends of the connecting sleeve, and the multiple limiting rollers are distributed in a rectangular pattern on the outer positions of both sides of the separator ring.
[0014] Through the above technical solution, the limiting roller achieves a sliding contact and limiting function on the outer surface of the MPP power pipe.
[0015] Furthermore, sealing gaskets are fixedly installed on both the front and rear surfaces of the separator ring. Both sealing gaskets are located inside the connecting sleeve, and the inner walls of both sealing gaskets are flush with the inner wall of the separator ring.
[0016] In summary, this application includes the following beneficial technical effects:
[0017] The connecting sleeve provided in this application facilitates the main support of the upper structure. In conjunction with the connecting strip, limiting slide bar, arc clamp, screw, rotating wheel, fixing block, T-slot, and T-shaft included in the two sets of positioning components, it enables the docking and positioning of two adjacent MPP power pipes. This overcomes the relatively laborious operation in the traditional method and prevents damage and breakage to the ends of the MPP power pipes. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the overall structure of this application;
[0019] Figure 2 This is a partial structural diagram of this application;
[0020] Figure 3 This is a partial semi-exploded view of this application;
[0021] Figure 4 This is a state diagram of the connection sleeve application in this application.
[0022] Explanation of the labels in the diagram:
[0023] 1. Connecting sleeve; 2. Separator ring; 3. Positioning assembly; 31. Connecting strip; 32. Limiting slide bar; 33. Arc-shaped clamp; 34. Screw; 35. Rotary wheel; 36. Fixing block; 37. T-slot; 38. T-shaft; 4. Limiting roller; 5. Sealing gasket. Detailed Implementation
[0024] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.
[0025] In the description of this application, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0026] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.
[0027] Example:
[0028] This application discloses an MPP power pipe connection sleeve. Please refer to [link / reference]. Figures 1-3The system includes a connecting sleeve 1, a partition ring 2 fixedly installed at the middle of the inner wall of the connecting sleeve 1, and a positioning component 3 provided at the outer end of the connecting sleeve 1. The positioning component 3 includes a connecting strip 31 located outside the connecting sleeve 1. Limiting slide rods 32 are fixedly connected to both sides of one end face of the connecting strip 31. The two limiting slide rods 32 are slidably sleeved through the inner cavity of the side end of the connecting sleeve 1. Arc-shaped clamping plates 33 are fixedly connected to the ends of the two limiting slide rods 32 facing away from the connecting strip 31. The two arc-shaped clamping plates 33 are located inside the connecting sleeve 1 and are respectively located on both sides of the partition ring 2. On the side, a screw rod 34 is threaded through the center cavity of the connecting strip 31. A rotating wheel 35 is fixedly installed at one end of the screw rod 34. A fixing block 36 is provided on the side of the screw rod 34 facing away from the rotating wheel 35. The fixing block 36 is fixedly installed at the middle of the outer surface of the connecting sleeve 1. A T-shaped groove 37 is embedded in the center of the end face of the fixing block 36 facing away from the connecting sleeve 1. A T-shaped shaft 38 is rotatably sleeved on the inner wall of the T-shaped groove 37. One end of the T-shaped shaft 38 extends out of the interior of the T-shaped groove 37 and is fixedly connected to the end of the screw rod 34 facing away from the rotating wheel 35.
[0029] Two sets of positioning components 3 are provided. The two sets of positioning components 3 are symmetrically distributed in the middle of the left and right sides of the connecting sleeve 1. Both sets of positioning components 3 are located on the outer side of the partition ring 2. Each arc-shaped clamp 33 has an arc-shaped plate structure. The inner wall of the arc-shaped surface of each arc-shaped clamp 33 facing away from the limiting slide rod 32 is fixedly equipped with a rubber anti-slip pad. The outer wall of each rotating wheel 35 is uniformly provided with multiple anti-slip grooves around its circumference. Each anti-slip groove is an arc-shaped strip groove structure.
[0030] Multiple limiting rollers 4 are linearly and uniformly arranged on the inner walls of both ends of the connecting sleeve 1. The multiple limiting rollers 4 are rectangularly distributed on the outer sides of the partition ring 2. Sealing gaskets 5 are fixedly installed on the front and rear surfaces of the partition ring 2. Both sealing gaskets 5 are located inside the connecting sleeve 1, and the inner walls of the two sealing gaskets 5 are flush with the inner walls of the partition ring 2. The partition ring 2 in the middle of the connecting sleeve 1 can limit the insertion length between the connecting sleeve 1 and the MPP power pipe end, while preventing the connecting sleeve 1 from being too long or too short for the insertion position of the two adjacent MPP power pipe ends. Furthermore, the sealing gaskets 5 on both sides of the partition ring 2 can effectively improve the sealing contact effect between the partition ring 2 and the MPP power pipe end.
[0031] The implementation principle of this embodiment is as follows: During use, the connecting sleeve 1 is inserted into the connection point of two adjacent MPP power pipes at opposite ends, causing the opposite ends of the two MPP power pipes to abut against the sealing gaskets 5 on both sides of the separator ring 2. During insertion, the outer surface of the MPP power pipe end slides against the outer wall of the wheel body of each limiting roller 4. Then, during the sequential operation of the two sets of positioning components 3, the rotating wheel 35 drives the screw 34 to rotate. At this time, due to the limiting rotational sleeve state of the T-groove 37 and T-shaft 38 between the screw 34 and the fixing block 36, and the sliding sleeve state of each limiting slide rod 32 with the side end of the connecting sleeve 1, the connecting strip 31 performs linear sliding motion on the outer wall of the screw 34, indirectly driving each arc-shaped clamp 33 to position, thus achieving the docking and positioning operation of the connecting sleeve 1 with the connection point of the two adjacent MPP power pipes. The application state of the connecting sleeve 1 at the connection point of the two adjacent sets of MPP power pipes is as follows: Figure 4 As shown.
[0032] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.
Claims
1. A MPP electrical conduit coupling sleeve comprising a coupling sleeve (1), characterised in that: The middle part of the inner wall of the connecting sleeve (1) is fixedly installed with a partition ring (2), and the outer end of the connecting sleeve (1) is provided with a positioning assembly (3), which comprises a connecting strip (31) located at the outer position of the connecting sleeve (1), the two sides of the end surface of the connecting strip (31) are fixedly connected with limiting slide rods (32), the two limiting slide rods (32) are slidably sleeved in the inner cavity of the side end of the connecting sleeve (1), and the two limiting slide rods (32) are fixedly connected with arc-shaped clamping plates (33) at the positions away from the connecting strip (31), the two arc-shaped clamping plates (33) are located inside the connecting sleeve (1), and the two arc-shaped clamping plates (33) are located at the two side positions of the partition ring (2), respectively, the central inner cavity of the connecting strip (31) is penetrated and screwed with a screw rod (34), one end of the screw rod (34) is fixedly installed with a rotating wheel (35), and the side away from the rotating wheel (35) of the screw rod (34) is provided with a fixed block (36), the fixed block (36) is fixedly installed at the middle position of the outer surface of the connecting sleeve (1), and a T-shaped groove (37) is embeddedly formed in the central position of the end surface of the fixed block (36) away from the connecting sleeve (1), a T-shaped shaft (38) is rotatably sleeved on the inner wall of the T-shaped groove (37), and one end of the T-shaped shaft (38) extends out of the inner part of the T-shaped groove (37), and the one end of the T-shaped shaft (38) is fixedly connected with the one end of the screw rod (34) away from the rotating wheel (35).
2. The MPP electrical conduit connector of claim 1, wherein: The positioning assembly (3) is provided with two groups, and the two groups of positioning assemblies (3) are symmetrically distributed at the middle positions of the left and right sides of the connecting sleeve (1), and the two groups of positioning assemblies (3) are arranged at the outer positions of the partition ring (2).
3. A MPP electrical conduit connector according to claim 2, wherein: Each of the arc-shaped clamping plates (33) is in a circular arc plate structure, and the inner wall of the side arc surface of each arc-shaped clamping plate (33) away from the limiting slide rod (32) is fixedly installed with a rubber anti-skid pad.
4. The MPP electrical conduit connector of claim 2, wherein: The outer side wall of each rotating wheel (35) is circumferentially and uniformly provided with a plurality of anti-skid grooves, and each anti-skid groove is a circular arc strip groove structure.
5. The MPP electrical conduit connector of claim 1, wherein: The upper and lower inner walls of the two ends of the connecting sleeve (1) are linearly and uniformly provided with a plurality of limiting rollers (4), and the plurality of limiting rollers (4) are distributed in a square form at the outer positions of the two sides of the partition ring (2).
6. The MPP electrical conduit connector of claim 1, wherein: The front and rear surfaces of the partition ring (2) are fixedly installed with sealing gaskets (5), and the two sealing gaskets (5) are located at the inner positions of the connecting sleeve (1), and the inner side walls of the two sealing gaskets (5) are flush with the inner side wall of the partition ring (2).