MPP electric power tube convenient for butt joint

Abstract

The utility model discloses an MPP electric power tube convenient for butt joint, which relates to the technical field of MPP electric power tubes, comprises an MPP electric power tube main body, and is characterized in that one end of the MPP electric power tube main body is provided with a flaring part, and the inner diameter of the flaring part is equal to the outer diameter of the other end of the MPP electric power tube main body; a groove is formed in the outer wall of the end, away from the flaring part, of the MPP electric power pipe body, the end, provided with the groove, of the MPP electric power pipe body is inserted into the flaring part of the adjacent MPP electric power pipe body, and a clamping assembly is slidably installed on the flaring part. The flaring part is further provided with a compression spring used for driving the clamping assembly to be connected with the groove of the adjacent MPP power tube body in a clamped mode. And the driving part is used for driving the clamping assembly to be separated from the groove. According to the MPP electric power tube convenient for butt joint, adjacent MPP electric power tubes can be conveniently and rapidly in butt joint, the assembly process is simple, and the efficiency is high.

Description

TECHNICAL FIELD

[0001] The utility model relates to MPP electric power pipe technical field especially, it relates to a kind of MPP electric power pipe convenient to butt joint. BACKGROUND

[0002] MPP electric power pipe is also called MPP electric power cable protection pipe, MPP cable protection pipe, divided into excavation type and non-excavation type, MPP non-excavation type electric power pipe is also called MPP jacking pipe or drag pipe.MPP pipe uses modified polypropylene as main raw material.It has the characteristics of high temperature resistance and external pressure resistance, and its wall thickness is usually between 8mm and 12mm, suitable for 10KV or below medium-low voltage power cable pipe.

[0003] In the prior art, the connection between MPP electric power pipes and adjacent MPP electric power pipes is basically hot melt welding, which is low in efficiency, and this connection method requires the alignment of the MPP electric power pipe port position when connecting the MPP electric power pipes.If the MPP electric power pipe port position is not aligned or has deviation during hot melt welding, it will cause the connection to be not firm and prone to disconnection, and once the position deviates, it will easily cause poor sealing and high construction difficulty.

[0004] Therefore, it is necessary to develop a kind of MPP electric power pipe convenient to butt joint for the above-mentioned defects. INVENTION CONTENTS

[0005] The utility model aims at providing a kind of MPP electric power pipe convenient to butt joint, it can be conveniently and quickly butt joint adjacent MPP electric power pipe, and the assembly process is simple and high in efficiency.

[0006] To solve the above technical problems, the utility model adopts the following technical solutions:

[0007] The utility model discloses a kind of MPP electric power pipe convenient to butt joint, including MPP electric power pipe main body, it is characterized in that, one end of the MPP electric power pipe main body is provided with flared portion, the inner diameter of the flared portion is equal to the outer diameter of the other end of the MPP electric power pipe main body;Groove is set up on the outer wall of the one end of the MPP electric power pipe main body away from the flared portion, the one end of the MPP electric power pipe main body with the groove is inserted into the flared portion of adjacent MPP electric power pipe main body, clamping assembly is slidably installed on the flared portion, compression spring for driving the clamping assembly and the groove of adjacent MPP electric power pipe main body is also installed on the flared portion;It further includes driving component for driving the clamping assembly to separate from the groove.

[0008] Preferably, the clamping assembly comprises a barrel shell and a blocking plate, an opening edge of the barrel shell is provided with an outwardly folded skirt, a receiving hole is formed in the outer wall of the flared portion, the central axis of the receiving hole is perpendicular to the central axis of the MPP power pipe body, the skirt is in sliding fit with the circumferential inner wall of the receiving hole, one end of the barrel shell away from the skirt is in sliding fit through the bottom wall of the receiving hole and is in clamping fit with the groove, the blocking plate is fixed at the opening end of the receiving hole, one end of the compression spring is in abutment with the blocking plate, the other end of the compression spring is in abutment with and is fixedly connected with the bottom wall of the barrel shell, the distance between the blocking plate and the bottom wall of the receiving hole is greater than or equal to the length of the barrel shell in the axial direction, the barrel shell is made of iron, and the driving component is a magnet.

[0009] Preferably, at least two guide rails are arranged on the inner wall of the receiving hole in the axial direction, and a sliding groove matched with the guide rails is formed in the skirt, and the sliding groove is in sliding connection with the guide rails.

[0010] Preferably, the clamping assembly comprises a barrel shell and a blocking plate, an opening edge of the barrel shell is provided with an outwardly folded skirt, a receiving hole is formed in the outer wall of the flared portion, the central axis of the receiving hole is perpendicular to the central axis of the MPP power pipe body, the skirt is in sliding fit with the circumferential inner wall of the receiving hole, one end of the barrel shell away from the skirt is in sliding fit through the bottom wall of the receiving hole and is in clamping fit with the groove, the blocking plate is fixed at the opening end of the receiving hole, one end of the compression spring is in abutment with the blocking plate, the other end of the compression spring is in abutment with and is fixedly connected with the bottom wall of the barrel shell, the distance between the blocking plate and the bottom wall of the receiving hole is greater than or equal to the length of the barrel shell in the axial direction, the driving component is a driving pin, one end of the driving pin is in sliding fit through the blocking plate and is fixedly connected with the bottom wall of the barrel shell, and the compression spring is located on the side of the driving pin.

[0011] Preferably, one end of the driving pin located outside the blocking plate is provided with a bent section.

[0012] Preferably, the clamping assembly is circumferentially and uniformly provided with a plurality of clamping assemblies with the center of the flared portion as the center.

[0013] Preferably, the cross section of the groove is rectangular or U-shaped.

[0014] Preferably, the end face edge of one end of the MPP power pipe body with the groove is provided with a first chamfer.

[0015] Preferably, the opening edge of the inner wall of the flared portion is provided with a second chamfer.

[0016] Preferably, a step is arranged in the flared portion, the step surface of the step faces the opening of the flared portion, and a sealing gasket is arranged on the step surface.

[0017] Compared with the prior art, the utility model have beneficial technical effects:

[0018] The utility model discloses a convenient butt joint's MPP electric power pipe, with drive part drive the joint assembly far away from the flared portion inner chamber, MPP electric power pipe main part has one end of the groove is inserted adjacent the flared portion of MPP electric power pipe main part, remove or release the drive part, then the joint assembly is under the compression spring's elastic force and is connected with the groove. The assembly process is simple and efficient. BRIEF DESCRIPTION OF DRAWINGS

[0019] The utility model will be further described below in connection with the drawings.

[0020] Figure 1 It is the section structure schematic view of two MPP electric power pipe main part connection place of the utility model;

[0021] Figure 2 It is Figure 1 It is the enlarged structure schematic view of A place in the middle;

[0022] Figure 3 It is the structure schematic view of barrel shell and groove non-joint state;

[0023] Figure 4 It is the barrel shell side view structure schematic view of the utility model;

[0024] Figure 5 It is the structure schematic view of another implementation of the utility model.

[0025] Mark explanation: 1, MPP electric power pipe main part;101, flared portion;102, groove;103, containing hole;104, first chamfer;105, second chamfer;106, guide rail;2, compression spring;3, barrel shell;301, apron;302, sliding slot;4, plugging plate;5, sealing pad;6, drive pin;7, magnet. DETAILED DESCRIPTION

[0026] The core of the utility model provides a kind of MPP electric power pipe for easy butt joint, can be conveniently and quickly butt joint adjacent MPP electric power pipe, and assembly process is simple and efficient.

[0027] The technical scheme in the embodiments of the utility model will be described clearly and completely in connection with the drawings in the embodiments of the utility model, and obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without making creative labor belong to the scope of the utility model protection.

[0028] In the description of the utility model, it is understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", "middle" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model.

[0029] As shown in Figures 1-5 The utility model discloses a MPP power pipe body 1, one end of MPP power pipe body 1 is provided with flared portion 101, the inner diameter of flared portion 101 is equal to the outer diameter of the other end of MPP power pipe body 1;The outer wall of the end of MPP power pipe body 1 away from flared portion 101 is provided with groove 102, the end of MPP power pipe body 1 with groove 102 is inserted into the flared portion 101 of adjacent MPP power pipe body 1, the flared portion 101 is slidably installed with the clamping assembly, the flared portion 101 is also installed with compression spring 2 for driving the clamping assembly and the groove 102 of adjacent MPP power pipe body 1 clamping, still include the driving part for driving the clamping assembly and the groove 102 of separation.

[0030] Specifically, the driving part can be driving pin 6 or magnet 7;Wherein, if magnet 7 is used, magnet 7 can be put into the tool bag carried by the staff when not using. When assembling, first use the driving part to drive the clamping assembly away from the inner cavity of flared portion 101, the end of MPP power pipe body 1 with groove 102 is inserted into the flared portion 101 of adjacent MPP power pipe body 1, remove (magnet 7) or release (driving pin 6), then the clamping assembly is clamped with groove 102 under the elastic force of compression spring 2. The assembly process is simple and efficient.

[0031] One specific embodiment when the driving part is magnet 7:

[0032] The clamping assembly includes cylinder shell 3 and blocking plate 4, the opening edge of cylinder shell 3 is provided with outwardly folded skirt 301, the outer wall of flared portion 101 is provided with containing hole 103, the central axis of containing hole 103 is perpendicular to the central axis of MPP power pipe body 1, skirt 301 and the circumferential inner wall of containing hole 103 are slidably connected, one end of cylinder shell 3 away from skirt 301 is slidably penetrated through the bottom wall of containing hole 103 and is clamped with groove 102;Blocking plate 4 is fixed at the opening end of containing hole 103, one end of compression spring 2 is abutted with blocking plate 4, the other end of compression spring 2 is abutted with the bottom wall of cylinder shell 3 and is fixedly connected;The distance between blocking plate 4 and the bottom wall of containing hole 103 is greater than or equal to the length of cylinder shell 3 in the axial direction;Cylinder shell 3 is made of iron, and the driving part is magnet 7.

[0033] Specifically, the barrel shell 3 includes but is not limited to pure iron, cast iron, martensitic stainless steel or ferritic stainless steel, and in principle, the magnetic iron 7 can generate a magnetic attraction force on the barrel shell 3, the magnetic iron 7 can adopt a neodymium iron boron magnet, and the following formula can be used to calculate the adsorption force: total weight of the magnetic iron 7 x 600 times = adsorption force. The magnetic iron 7 is attached to the outer surface of the blocking plate 4, and the magnetic iron 7 generates an adsorption force on the barrel shell 3, and the barrel shell 3 overcomes the elastic force of the compression spring 2, so that the barrel shell 3 can be retracted into the containing hole 103. The blocking plate 4 can be threadedly connected, heat-welded or bonded with the opening of the containing hole 103.

[0034] The inner wall of the containing hole 103 is provided with at least two guide rails 106 in the axial direction, and the skirt 301 is provided with a sliding groove 302 matched with the guide rail 106, and the sliding groove 302 is slidably connected with the guide rail 106.

[0035] Specifically, the guide rail 106 and the sliding groove 302 cooperate with each other to guide the sliding of the barrel shell 3 and make the sliding smooth.

[0036] Working principle: when assembling, first use the magnetic iron 7 to drive the barrel shell 3 away from the inner cavity of the flared portion 101, and then insert one end of the MPP power pipe body 1 with the groove 102 into the flared portion 101 of the adjacent MPP power pipe body 1. Remove the magnetic iron 7, and then the clamping assembly is clamped with the groove 102 under the elastic force of the compression spring 2. When disassembling, use the magnetic iron 7 to drive the barrel shell 3 away from the groove 102, and then the MPP power pipe body 1 can be pulled out.

[0037] One specific embodiment when the driving component is a driving pin 6:

[0038] The clamping assembly includes a barrel shell 3 and a blocking plate 4, the opening edge of the barrel shell 3 is provided with an outwardly folded skirt 301, the outer wall of the flared portion 101 is provided with a containing hole 103, the central axis of the containing hole 103 is perpendicular to the central axis of the MPP power pipe body 1, the skirt 301 is slidably connected with the inner wall of the containing hole 103, and one end of the barrel shell 3 away from the skirt 301 slides through the bottom wall of the containing hole 103 and is clamped with the groove 102; the blocking plate 4 is fixed at the opening end of the containing hole 103, one end of the compression spring 2 abuts against the blocking plate 4, and the other end of the compression spring 2 abuts against and is fixedly connected with the bottom wall of the barrel shell 3; the distance between the blocking plate 4 and the bottom wall of the containing hole 103 is greater than or equal to the length of the barrel shell 3 in the axial direction; the driving component is a driving pin 6, one end of the driving pin 6 slides through the blocking plate 4 and is fixedly connected with the bottom wall of the barrel shell 3, and the compression spring 2 is located on the side of the driving pin 6.

[0039] Specifically, by pulling the driving pin 6, the barrel shell 3 can be driven.

[0040] One end of the driving pin 6 located outside the blocking plate 4 is provided with a bent section.

[0041] In an embodiment of the utility model, the flared portion 101 is provided with a plurality of flanges.

[0042] In an embodiment of the utility model, the cross section of the groove 102 is rectangular or U-shaped.

[0043] In an embodiment of the utility model, the end face edge of one end of the MPP power tube body 1 provided with the groove 102 is provided with a first chamfer 104.

[0044] In an embodiment of the utility model, the opening edge of the inner wall of the flared portion 101 is provided with a second chamfer 105.

[0045] In an embodiment of the utility model, the flared portion 101 is internally provided with a step, the step surface of the step faces the opening of the flared portion 101, and the step surface is provided with a sealing gasket 5.

[0046] The embodiments in the specification are described in a progressive manner, each embodiment focuses on the difference from other embodiments, the same and similar parts of each embodiment can be referred to each other, and each embodiment can be combined with each other. For the device disclosed in the embodiments, since it corresponds to the method disclosed in the embodiments, the description is relatively simple, and the related parts can be referred to the method part.

[0047] The above embodiments only describe the preferred mode of the utility model, and do not limit the scope of the utility model. Without departing from the design spirit of the utility model, various modifications and improvements of the technical scheme of the utility model made by those skilled in the art shall fall within the protection scope determined by the claims of the utility model.

Claims

1. A MPP power tube facilitating interfacing, comprising a MPP power tube main body (1), characterized in that, The MPP power tube body (1) is provided with a flared portion (101) at one end, the inner diameter of the flared portion (101) is equal to the outer diameter of the other end of the MPP power tube body (1); a groove (102) is formed on the outer wall of the MPP power tube body (1) away from the flared portion (101), one end of the MPP power tube body (1) with the groove (102) is inserted into the flared portion (101) of the adjacent MPP power tube body (1), a clamping assembly is slidably installed on the flared portion (101), and a compression spring (2) for driving the clamping assembly to clamp with the groove (102) of the adjacent MPP power tube body (1) is also installed on the flared portion (101); and a driving component for driving the clamping assembly to disengage from the groove (102) is further included.

2. The MPP electrical conduit for easy interfacing of claim 1, wherein: The clamping assembly includes a barrel shell (3) and a blocking plate (4), the opening edge of the barrel shell (3) is provided with an outwardly folded skirt (301), the flared portion (101) is provided with a containing hole (103) on the outer wall, the central axis of the containing hole (103) is perpendicular to the central axis of the MPP power tube body (1), the skirt (301) is in sliding fit with the circumferential inner wall of the containing hole (103), and one end of the barrel shell (3) away from the skirt (301) penetrates through the bottom wall of the containing hole (103) and is clamped with the groove (102); the blocking plate (4) is fixed at the opening end of the containing hole (103), one end of the compression spring (2) abuts against the blocking plate (4), and the other end of the compression spring (2) abuts against and is fixedly connected with the bottom wall of the barrel shell (3); the distance between the blocking plate (4) and the bottom wall of the containing hole (103) is greater than or equal to the length of the barrel shell (3) in the axial direction; the barrel shell (3) is made of iron, and the driving component is a magnet (7).

3. The MPP power conduit of claim 2, wherein: At least two guide rails (106) are arranged on the inner wall of the containing hole (103) in the axial direction, and a sliding groove (302) matched with the guide rails (106) is formed on the skirt (301), and the sliding groove (302) is in sliding connection with the guide rails (106).

4. The easy-to-terminate MPP electrical conduit of claim 1, wherein: The clamping assembly comprises a barrel shell (3) and a blocking plate (4), an opening edge of the barrel shell (3) is provided with an outwardly folded skirt (301), an accommodating hole (103) is formed in the outer wall of the flared portion (101), the central axis of the accommodating hole (103) is perpendicular to the central axis of the MPP power pipe body (1), the skirt (301) is in sliding fit with the circumferential inner wall of the accommodating hole (103), one end of the barrel shell (3) away from the skirt (301) is in sliding fit through the bottom wall of the accommodating hole (103) and is clamped with the groove (102); the blocking plate (4) is fixed at the opening end of the accommodating hole (103), one end of the compression spring (2) is in abutment with the blocking plate (4), the other end of the compression spring (2) is in abutment with and fixedly connected with the bottom wall of the barrel shell (3); the distance between the blocking plate (4) and the bottom wall of the accommodating hole (103) is greater than or equal to the length of the barrel shell (3) in the axial direction; the driving component is a driving pin (6), one end of the driving pin (6) is in sliding fit through the blocking plate (4) and is fixedly connected with the bottom wall of the barrel shell (3), and the compression spring (2) is located on the side of the driving pin (6).

5. The docking facilitated MPP power tube of claim 4, wherein: One end of the driving pin (6) located outside the blocking plate (4) is provided with a bent section.

6. The MPP electrical power conduit of any one of claims 1 to 5, wherein: The clamping assembly is uniformly distributed with a plurality of centers around the center of the flared portion (101).

7. The MPP electrical power conduit of any one of claims 1-5, wherein: The cross section of the groove (102) is rectangular or U-shaped.

8. The MPP power conduit of claim 1, wherein: The MPP power pipe body (1) is provided with a first chamfer (104) at the edge of the end face of one end of the groove (102).

9. The MPP power conduit of claim 1, wherein: The opening edge of the inner wall of the flared portion (101) is provided with a second chamfer (105).

10. The dock- and-go MPP power tube of claim 1, wherein: The flared portion (101) is internally provided with a step, the step surface of the step faces the opening of the flared portion (101), and the step surface is provided with a sealing gasket (5).

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