Buried flared solid-wall power cable protection tube

Abstract

The utility model discloses a buried flared solid-wall power cable protection pipe, which comprises two protection pipe bodies, a first connecting unit and a second connecting unit, and is characterized in that the first connecting unit is connected with a first end pipe of one protection pipe body, and the second connecting unit is connected with a second end pipe of the other protection pipe body. According to the power cable protection pipe, the two ends are flared, and the first connecting unit and the second connecting unit are matched, so that the first connecting unit and the second connecting unit are stably connected with the ends of the two protection pipe bodies. The nested connection mode enables the connection structure to be more compact, connection between the first connection unit and the second connection unit is stable, and disassembly and assembly are very convenient.

Description

Technical Field

[0001] The utility model relates to the field of cable protection tubes, and more specifically to an underground expanded solid-wall power cable protection tube. Background Art

[0002] With the acceleration of urbanization, the installation of power cables is increasing, and the use of power cable protection conduits has become particularly important. Power cable protection conduits are pipes or casings with a certain degree of mechanical strength and corrosion resistance. Their main function is to protect power cables, reduce damage to the cables caused by external factors, and thus extend the service life of the cables.

[0003] Traditional power cable protection conduits often use simple connection methods. These tend to loosen over time or when subjected to external forces, leading to unstable connections and even detachment. Unstable connections directly impact the cable's protective effectiveness, making it susceptible to environmental damage such as moisture, dust, and animal bites. This can cause cable failures and compromise the safety and reliability of power transmission. Some power cable protection conduits are also difficult to install, requiring multiple steps and specialized tools, increasing both the difficulty and cost. Utility Model Content

[0004] The utility model aims to overcome the defects of the prior art and provides an underground expanded solid-wall power cable protection pipe.

[0005] In order to achieve the above-mentioned purpose, the present invention provides the following technical solutions: a power cable protection tube, comprising two protection tube bodies, a first connecting unit and a second connecting unit, wherein the protection tube body comprises a tube body, a first connecting tube fixedly connected to one end of the tube body, a second connecting tube fixedly connected to the other end of the tube body, a first end tube fixedly connected to the first connecting tube, and a second end tube fixedly connected to the second connecting tube, the first connecting tube and the second connecting tube are both frustum-shaped, the first connecting unit comprises a first outer tube, a first inner tube located in the first outer tube, a first end annular plate connecting the first outer tube and the first inner tube, and a first end annular plate connected to the first end Multiple clamping plates connected by annular plates, the first outer tube has multiple first outer strip grooves, the first inner tube has multiple first inner strip grooves, multiple clamping plates are distributed in an annular shape with equal intervals and surround a frustum with multiple second strip grooves, the second connecting unit includes a second outer tube located in the first inner tube, a second inner tube located in the second outer tube, and a second end annular plate connecting the second outer tube and the second inner tube, the end of the second outer tube has multiple third strip grooves distributed in an annular shape with equal intervals, the first connecting unit is connected to the first end tube of one of the protective tube bodies, and the second connecting unit is connected to the second end tube of the other protective tube body.

[0006] Further, the first outer tube includes a cylindrical portion and a frustum-shaped portion, the first inner tube includes a cylindrical portion and a frustum-shaped portion, and the second outer tube includes a cylindrical portion and a frustum-shaped portion, wherein the first end tube of one protective tube body is inserted between the cylindrical portion of the first outer tube and the cylindrical portion of the first inner tube, and the frustum-shaped portion of the first outer tube and the frustum-shaped portion of the first inner tube clamp the first connecting tube; the second end tube of the other protective tube body is inserted between the cylindrical portion of the second outer tube and the second inner tube, and a plurality of clamping plates clamp the frustum-shaped portion of the second outer tube, and the frustum-shaped portion of the second outer tube is pressed against the second connecting tube.

[0007] Thus, the first connecting unit and the second connecting unit are stably connected to the ends of the two protection tube bodies.

[0008] Furthermore, the first outer strip grooves are located in the frustum-shaped portion of the first outer tube, and the first inner strip grooves are located in the frustum-shaped portion of the first inner tube. The number of the first inner strip grooves is equal to that of the first outer strip grooves and they correspond one to one.

[0009] This increases the elasticity and clamping force of the frustum-shaped portion.

[0010] Furthermore, the number of the third strip-shaped grooves is equal to that of the second strip-shaped grooves and they correspond one to one.

[0011] Furthermore, the inner side wall of the first inner tube has a plurality of first annular protrusions, and the outer side wall of the second outer tube has a plurality of second annular protrusions.

[0012] This increases friction and enhances the connection strength between the first connection unit and the second connection unit.

[0013] Furthermore, the clamping plate has a notch.

[0014] This makes the clamping plate more elastic.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. The power cable protection tube of the present application has flared ends, which cooperate with the first connecting unit and the second connecting unit so that the first connecting unit and the second connecting unit are stably connected to the ends of the two protection tube bodies.

[0017] 2. The power cable protection tube of the present application has a nested connection method that makes the connection structure more compact, the connection between the first connection unit and the second connection unit is stable, and disassembly and assembly are very convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a first-person perspective diagram of the separation of power cable protection tube components;

[0019] Figure 2 This is an enlarged view of area A;

[0020] Figure 3 This is an enlarged view of area B;

[0021] Figure 4 This is a schematic diagram of the separation of the power cable protection tube components from a second perspective;

[0022] Figure 5 This is an enlarged view of area C;

[0023] Figure 6 This is an enlarged view of area D;

[0024] Figure 7 Schematic diagram of the connection between the first connecting unit and the second connecting unit and the ends of the two protection tube bodies respectively;

[0025] Figure 8 This is an enlarged view of area E;

[0026] Figure 9 This is an enlarged view of area F;

[0027] Figure 10 is a schematic diagram of the connection between the first connecting unit and the second connecting unit;

[0028] Figure 11 This is an enlarged view of area G;

[0029] For convenience, Figure 1 Some structures are hidden.

[0030] Explanation of the reference numerals: tube body 1.1; first connecting tube 1.2; first end tube 1.3; second connecting tube 1.4; second end tube 1.5; first outer tube 2; first outer strip groove 2.1; first inner tube 3; first inner strip groove 3.1; first annular protrusion 3.2; first end annular plate 4; clamping plate 5; second strip groove 5.1; notch 5.2; second outer tube 6; third strip groove 6.1; second annular protrusion 6.2; second inner tube 7; second end annular plate 8. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0032] The utility model provides Figure 1-11The buried flared solid-wall power cable protection tube shown in the figure includes two protection tube bodies, a first connecting unit and a second connecting unit. The protection tube body includes a tube body 1.1, a first connecting tube 1.2 fixedly connected to one end of the tube body 1.1, a second connecting tube 1.4 fixedly connected to the other end of the tube body 1.1, a first end tube 1.3 fixedly connected to the first connecting tube 1.2, and a second end tube 1.5 fixedly connected to the second connecting tube 1.4. The first connecting tube 1.2 and the second connecting tube 1.4 are both frustum-shaped. The first connecting unit includes a first outer tube 2, a first inner tube 3 located in the first outer tube 2, a first end annular plate 4 connecting the first outer tube 2 and the first inner tube 3, and a first end annular plate 4 connected to the first end Multiple clamping plates 5 are connected by an annular plate 4, the first outer tube 2 has multiple first outer strip grooves 2.1, the first inner tube 3 has multiple first inner strip grooves 3.1, and the multiple clamping plates 5 are distributed in an annular shape with equal intervals and surround a frustum with multiple second strip grooves 5.1. The second connecting unit includes a second outer tube 6 located in the first inner tube 3, a second inner tube 7 located in the second outer tube 6, and a second end annular plate 8 connecting the second outer tube 6 and the second inner tube 7. The end of the second outer tube 6 has multiple third strip grooves 6.1 distributed in an annular shape with equal intervals. The first connecting unit is connected to the first end tube of one of the protective tube bodies, and the second connecting unit is connected to the second end tube of the other protective tube body.

[0033] The first outer tube 2 comprises a cylindrical portion and a frustoconical portion, the first inner tube 3 comprises a cylindrical portion and a frustoconical portion, and the second outer tube 6 comprises a cylindrical portion and a frustoconical portion. The first end tube 1.3 of one protective tube body is inserted between the cylindrical portion of the first outer tube 2 and the cylindrical portion of the first inner tube 3, and the frustoconical portion of the first outer tube 2 and the frustoconical portion of the first inner tube 3 clamp the first connecting tube 1.2. The second end tube 1.5 of the other protective tube body is inserted between the cylindrical portion of the second outer tube 6 and the second inner tube 7, and a plurality of clamping plates 5 clamp the frustoconical portion of the second outer tube 6, and the frustoconical portion of the second outer tube 6 abuts against the second connecting tube 1.4. The first outer strip grooves 2.1 are located in the frustoconical portion of the first outer tube 2, and the first inner strip grooves 3.1 are located in the frustoconical portion of the first inner tube 3. The number of first inner strip grooves 3.1 and first outer strip grooves 2.1 is equal and corresponds one to one. The number of the third strip grooves 6.1 is equal to and corresponds to the number of the second strip grooves 5.1. The inner wall of the first inner tube 3 has a plurality of first annular protrusions 3.2, and the outer wall of the second outer tube 6 has a plurality of second annular protrusions 6.2. The clamping plate 5 has a notch 5.2.

[0034] Working Principle: The power cable protection tube in this application has flared ends, which cooperate with the first and second connecting units to ensure a stable connection between the first and second connecting units and the ends of the two protection tube bodies. The nested connection method makes the connection structure more compact, the connection between the first and second connecting units is stable, and it is very convenient to assemble and disassemble.

[0035] During installation, the first connecting unit is first connected to one of the protective tube bodies, such that the first end tube of the protective tube body is inserted between the cylindrical portion of the first outer tube and the cylindrical portion of the first inner tube, and the frusto-conical portion of the first outer tube and the frusto-conical portion of the first inner tube clamp the first connecting tube. Next, the second connecting unit is connected to the other protective tube body, such that the second end tube of the protective tube body is inserted between the cylindrical portion of the second outer tube and the second inner tube. The first connecting unit is then connected to the second connecting unit, and the second connecting unit is nested within the first connecting unit, so that the multiple clamping plates clamp the frusto-conical portion of the second outer tube, so that the frusto-conical portion of the second outer tube tightly abuts the second connecting tube, thereby achieving a stable connection between the two protective tube bodies.

[0036] Although the present invention has been illustrated and described with respect to preferred embodiments, it will be understood by those skilled in the art that various changes and modifications may be made to the present invention without departing from the scope of the present invention as defined by the claims.

Claims

1. A buried expanded solid wall power cable protection tube, characterized in that: The protective tube body comprises two protective tube bodies, a first connecting unit, and a second connecting unit. The protective tube body comprises a tube body, a first connecting tube fixedly connected to one end of the tube body, a second connecting tube fixedly connected to the other end of the tube body, a first end tube fixedly connected to the first connecting tube, and a second end tube fixedly connected to the second connecting tube. The first connecting tube and the second connecting tube are both frustum-shaped. The first connecting unit comprises a first outer tube, a first inner tube located within the first outer tube, a first end annular plate connecting the first outer tube and the first inner tube, and a plurality of clamping plates connected to the first end annular plate. The first outer tube has a plurality of first outer strip grooves, the first inner tube has a plurality of first inner strip grooves, and the plurality of clamping plates are distributed at equal intervals in an annular manner and surround a frustum having a plurality of second strip grooves. The second connecting unit comprises a second outer tube located within the first inner tube, a second inner tube located within the second outer tube, and a second end annular plate connecting the second outer tube and the second inner tube. The end of the second outer tube has a plurality of third strip grooves distributed at equal intervals in an annular manner. The first connecting unit is connected to the first end tube of one protective tube body, and the second connecting unit is connected to the second end tube of the other protective tube body.

2. The buried expanded solid wall power cable protection tube according to claim 1, characterized in that: The first outer tube includes a cylindrical part and a frustum-shaped part, the first inner tube includes a cylindrical part and a frustum-shaped part, and the second outer tube includes a cylindrical part and a frustum-shaped part, wherein the first end tube of one protective tube body is inserted between the cylindrical part of the first outer tube and the cylindrical part of the first inner tube, and the frustum-shaped part of the first outer tube and the frustum-shaped part of the first inner tube clamp the first connecting tube; the second end tube of the other protective tube body is inserted between the cylindrical part of the second outer tube and the second inner tube, and multiple clamping plates clamp the frustum-shaped part of the second outer tube, and the frustum-shaped part of the second outer tube is pressed against the second connecting tube.

3. The buried expanded solid wall power cable protection tube according to claim 2, characterized in that: The first outer strip grooves are located in the frustum-shaped portion of the first outer tube, and the first inner strip grooves are located in the frustum-shaped portion of the first inner tube. The number of the first inner strip grooves is equal to that of the first outer strip grooves and they correspond one to one.

4. The buried expanded solid wall power cable protection tube according to claim 2, characterized in that: The number of the third strip grooves is equal to that of the second strip grooves and they correspond one to one.

5. The buried expanded solid wall power cable protection tube according to claim 1, characterized in that: The inner side wall of the first inner tube has a plurality of first annular protrusions, and the outer side wall of the second outer tube has a plurality of second annular protrusions.

6. The buried expanded solid wall power cable protection tube according to claim 1, characterized in that: The clamping plate has a notch portion.

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