CN109586221B

CN109586221B - Electric cable wall-penetrating protection tube

Info

Publication number: CN109586221B
Application number: CN201811352268.6A
Authority: CN
Inventors: 呙宏林; 赵昌涛; 段文京; 谢长山
Original assignee: Shaanxi Zhongchang Technology Co ltd
Current assignee: SHAANXI ZHONGCHANG TECHNOLOGY Co.,Ltd.
Priority date: 2018-11-14
Filing date: 2018-11-14
Publication date: 2020-05-22
Anticipated expiration: 2038-11-14
Also published as: CN109586221A

Abstract

The invention relates to the technical field of electrical pipes, in particular to an electrical cable through-wall protection pipe, wherein a pipe cavity is arranged in a pipe body, a first movable pipe is arranged in the pipe cavity, the first movable pipe is provided with a first convex ring, and the first convex ring is in threaded connection with the pipe cavity; the right end of the first movable pipe is respectively sleeved with a third movable pipe and a second movable pipe, and the third movable pipe is positioned in the inner cavity of the second movable pipe; a baffle ring is arranged at the right end of the second movable pipe, and a second convex ring is arranged at the right end of the third movable pipe; a plurality of first chock blocks are arranged on the left side of the first convex ring, and a plurality of second chock blocks are arranged on the right side of the second convex ring; the outer side of the pipe body is in threaded sleeve connection with a fixed pipe, the fixed pipe is in threaded sleeve connection with a lantern ring, and the outer side face of the fixed pipe and the lantern ring are arranged in a cement layer of the wall body through hole; two rings are further sleeved on the outer side of the pipe body in a threaded manner and located at two ends of the fixed pipe, a containing cavity is arranged on the inner side of each ring, and the wall of each containing cavity can be sleeved on the outer side of the fixed pipe in a threaded manner. The invention can clamp the electric pipeline, and can be conveniently mounted and dismounted, and has stable structure.

Description

Electric cable wall-penetrating protection tube

Technical Field

The invention relates to the technical field of electrical pipes, in particular to an electrical cable wall-through protection pipe.

Background

The electrical lines are typically encased in protective tubing during installation, with the protective tubing protecting the electrical lines. The cable protection pipe is a protection pipe having a certain mechanical strength and laid on an outer layer of a cable in order to prevent the cable from being damaged. The cable protection pipe is mainly installed in a section where the communication cable and the power line are crossed, so that the short circuit accident caused by the disconnection of the power line is prevented, the communication cable and the steel wire rope are electrified, the cable, the switch and the machine core board are protected, the whole machine is not burnt out, and a certain isolation effect is achieved on the magnetic field interference of the power line. However, the existing cable protection tube cannot effectively fix the cable, is easy to feed water, is unstable in structure, is easy to shake and is poor in heat dissipation.

Disclosure of Invention

The present invention provides an electrical pipeline protection pipe having a clamping structure which overcomes some or some of the disadvantages of the prior art.

The electric pipeline protection tube with the clamping structure comprises a tube body, wherein a tube cavity is arranged in the tube body, a first movable tube is arranged in the tube cavity, a first convex ring is arranged at the left end of the first movable tube, and the first convex ring is in threaded connection with the wall of the tube cavity; a third movable pipe and a second movable pipe are respectively sleeved on the inner side and the outer side of the right end of the first movable pipe in a left-right stretching mode, and the third movable pipe is positioned in the inner cavity of the second movable pipe; a baffle ring is arranged at the right end of the second movable pipe, a second convex ring is arranged at the right end of the third movable pipe, and the second convex ring abuts against the inner wall of the right end of the second movable pipe; a plurality of first chock blocks are arranged on the left side of the first convex ring, and a plurality of second chock blocks are arranged on the right side of the second convex ring.

In the electric pipeline protection tube with the clamping structure, the first convex ring at the left end of the first movable tube is in threaded connection with the tube cavity, when the first movable tube rotates, the left end of the first movable tube can move towards the tube cavity, so that the first plug block can move towards the tube cavity, and the first plug block can clamp the electric pipeline at the left end of the first movable tube, so that the left end of the electric pipeline is clamped; the second movable pipe is sleeved with the first movable pipe, the right end of the second movable pipe is provided with the baffle ring, and the baffle ring is arranged at the right end of the pipe cavity, so that the baffle ring can be rotated to realize the rotation of the first movable pipe, and the second movable pipe can horizontally move, so that the baffle ring can be attached to the right end face of the pipe body, the size is reduced, the baffle ring can be separated from the pipe body, and the baffle ring can be conveniently held by hands; the third movable pipe also cup joints with first movable pipe, also can the horizontal migration, the migration range of second movable pipe is bigger than the migration range of third movable pipe, the second chock that the right-hand member of third movable pipe can be extruded in the right-hand movement of second movable pipe, make the second chock press from both sides tight electrical pipeline, electrical pipeline right-hand member is pressed from both sides tightly, like this, electrical pipeline is pressed from both sides tightly in the body effectively steadily, prevent that electrical pipeline from rocking, also can prevent rainwater and foreign matter from entering into the body from the body both ends, guarantee the cleanliness in the lumen. The stability between second activity pipe and the third activity pipe can be guaranteed in the setting of second bulge loop, also makes things convenient for the installation of second chock.

Preferably, a first clamping block is arranged on the inner side of the right end of the first movable pipe, a first clamping cavity is arranged at the left end of the third movable pipe, and the first clamping block can be clamped in the first clamping cavity.

In the electric pipeline protection pipe with the clamping structure, the first clamping block is matched with the first clamping cavity, so that the third movable pipe can be sleeved on the first movable pipe in a left-right stretching mode, and the third movable pipe and the first movable pipe cannot rotate relatively.

Preferably, a second clamping block is arranged on the outer side of the right end of the first movable pipe, a second clamping cavity is arranged at the left end of the second movable pipe, and the second clamping block can be clamped in the second clamping cavity.

In the electric pipeline protection pipe with the clamping structure, the second clamping block is matched with the second clamping cavity, so that the second movable pipe can be sleeved on the first movable pipe in a left-right stretching mode, and the second movable pipe and the first movable pipe cannot rotate relatively.

Preferably, the plurality of first chock blocks are annularly distributed by taking the first convex ring as a center, the inner side of each first chock block is a plane and is aligned with the inner cavity surface of the first movable tube, and the outer side of each first chock block is an inclined plane and the lowest point of each first chock block is aligned with the inner cavity surface of the tube.

In the electric pipeline protection tube with the clamping structure, when the first plug block moves into the tube cavity, the inclined surface on the outer side of the first plug block is extruded by the tube cavity, and the inner side of the first plug block is folded to clamp the electric pipeline.

Preferably, the plurality of second chock blocks are annularly distributed by taking the second convex ring as a center, the inner side of each second chock block is a plane and is aligned with the inner cavity surface of the third movable tube, the outer side of each second chock block is an inclined plane, and the lowest point of each second chock block is aligned with the inner cavity surface of the second movable tube.

In the electric pipeline protection pipe with the clamping structure, when the second plug block moves towards the second movable pipe, the inclined plane on the outer side of the second plug block is extruded, and the inner side of the second plug block is folded to clamp the electric pipeline.

As preferred, keep off ring detachably and install on the second movable tube and keep off that the ring diameter is the same with the body diameter, keep off and be equipped with first fixed orifices on the ring, be equipped with corresponding second fixed orifices on the body, can wear to be equipped with the screw in first fixed orifices and the second fixed orifices.

In the electric pipeline protection pipe with the clamping structure, the baffle ring is detachably mounted, so that the second movable pipe is conveniently mounted, the diameter of the baffle ring is the same as that of the pipe body, the baffle ring can be aligned with the pipe body, the baffle ring can be fixed with the pipe body through the matching of the first fixing hole, the second fixing hole and the screw, the baffle ring can be prevented from moving after the electric pipeline is clamped, and the clamping stability is ensured.

The present invention provides a protection device for electrical pipelines which overcomes some or all of the disadvantages of the prior art.

The protection device for the electric pipeline comprises a pipe body, wherein a pipe cavity is arranged in the pipe body, a water inlet is formed in the top of the pipe body, a first water collecting groove is formed in the top of the pipe cavity, a first water collecting cavity is formed in the first water collecting groove, and the first water collecting cavity is communicated with the water inlet; the bottom in the lumen intracavity is equipped with the second water catch bowl, is equipped with the second in the second water catch bowl and catchments the chamber, and the second catchments the chamber and communicates with each other through a plurality of connecting pipes with first chamber that catchments.

According to the protection device for the electric pipeline, the water inlet hole in the top of the pipe body is arranged, so that water above the pipe body can be conveniently collected into the first water collecting cavity, the water in the first water collecting cavity can be reserved into the second water collecting cavity through the connecting pipe, accumulated water is contained in the first water collecting cavity, the second water collecting cavity and the connecting pipe, the accumulated water can dissipate heat of the electric pipeline in the pipe body, and the safety of the electric pipeline is guaranteed.

Preferably, the connecting pipe comprises a first connecting pipe and a second connecting pipe, the first connecting pipe and the second connecting pipe are both arc-shaped, and the first connecting pipe and the second connecting pipe are symmetrically distributed and have the circle centers on the central shaft of the pipe body.

In the protection device for an electric pipeline of the present invention, the arc-shaped structures of the first connection pipe and the second connection pipe do not hinder the threading of the electric pipeline.

Preferably, the first water collecting tank bottom surface and the second water collecting tank top surface are both concave, and the first water collecting tank bottom surface, the second water collecting tank, the inner side of the first connecting pipe and the inner side of the second connecting pipe can be connected into a circle.

In the protection device for the electric pipeline, the bottom surface of the first water collecting groove, the second water collecting groove, the inner side of the first connecting pipe and the inner side of the second connecting pipe can be connected into a circle, so that the electric pipeline cannot be blocked or scratched when passing through the protection device.

Preferably, the bottom of the pipe body is provided with a water outlet hole, a hole plug is arranged on the water outlet hole, and the water outlet hole is communicated with the second water collecting cavity.

According to the protection device for the electric pipeline, the arrangement of the water outlet hole can discharge accumulated water, the accumulated water can be cleaned when the pipe body is not used, and the protection device is very convenient.

Preferably, two positioning strips used for clamping the first water collecting groove are arranged in the first water collecting cavity, and the positioning strips are connected to the inner wall of the cavity.

In the protection device for the electric pipeline, the first water collecting tank can be clamped by the positioning strip due to the arrangement of the positioning strip, so that the stability of the position of the first water collecting tank is ensured, and the positions of the second water collecting tank and the connecting pipe are also fixed.

Preferably, a waterproof rubber pad is arranged on the bottom surface of the second water collecting groove.

In the protection device for the electric pipeline, water cannot leak below the second water collecting tank through the arrangement of the waterproof rubber pad.

Preferably, the first water collecting tank is provided with a notch for the positioning strip to pass through, and the inner wall of the notch and the top surface of the first water collecting tank are also provided with additional waterproof rubber pads.

In the protection device for the electric pipeline, the arrangement of the notch enables the integral structure of the first water collecting tank, the connecting pipe and the second water collecting tank to be conveniently installed and detached. The additional waterproof rubber pad can prevent water leakage.

The present invention provides a wall penetrating device for power cables having improved robustness which overcomes some or all of the disadvantages of the prior art.

The wall penetrating device for the power cable with better stability comprises a pipe body, wherein a pipe cavity is arranged in the pipe body, a fixed pipe is sleeved on the outer side of the pipe body in a threaded manner, more than two lantern rings are sleeved on the outer side of the fixed pipe in a threaded manner, and the outer side face of the fixed pipe and the lantern rings are arranged in a cement layer of a through hole of a wall body; two rings are further sleeved on the outer side of the pipe body in a threaded manner and located at two ends of the fixed pipe, a containing cavity is arranged on the inner side of each ring, and the wall of each containing cavity can be sleeved on the outer side of the fixed pipe in a threaded manner.

In the wall penetrating device for the power cable with better stability, the pipe body is sleeved with the fixed pipe through the threads, so that the pipe body can be detached from the fixed pipe, and when the fixed pipe is installed in a wall body, the pipe body is very convenient to install and detach. The setting of the lantern ring can prevent that fixed pipe from pulling out in the wall body, improves the stability of fixed pipe, and lantern ring screw thread cup joints in the fixed outside of tubes, and this makes the position that can conveniently adjust the lantern ring, makes the mounted position of fixed pipe better, and the installation is more stable. The ring is in threaded connection with the pipe body, so that when the ring is in threaded connection with the fixed pipe, the pipe body cannot rotate in the fixed pipe, and the stability of the pipe body is guaranteed.

Preferably, the collar comprises an inner ring and an outer ring, the inner ring being made of a hard material and the outer ring being made of a soft material.

In the wall penetrating device for the power cable with better stability, the inner ring is sleeved on the fixed pipe and made of hard materials, so that the stability of the threaded connection of the lantern ring and the fixed pipe can be ensured; when the fixed pipe is installed, if the diameter of the outer ring is larger than that of the wall through hole, the outer ring is made of hard materials and cannot enter the wall through hole, and therefore the outer ring is made of soft materials and can be conveniently plugged into the wall through hole.

Preferably, the outer ring has a thickness gradually decreasing from bottom to top.

In the wall penetrating device for the power cable with better stability, the thickness of the outer ring is gradually reduced from bottom to top, so that the outer ring can further enter the through hole of the wall body conveniently.

Preferably, the two side faces of the inner ring are respectively provided with a clamping groove, a raised line is arranged in the clamping groove, and the raised line is integrally connected with the outer ring.

In the wall penetrating device for the power cable with better stability, the connection stability of the inner ring and the outer ring can be improved by matching the clamping groove and the convex strip.

Preferably, a plurality of fixing columns are arranged on the groove wall of the clamping groove, a plurality of fixing holes are formed in the raised strips, and the fixing columns are clamped in the corresponding fixing holes.

In the wall penetrating device for the power cable with better stability, the connection stability of the inner ring and the outer ring can be further improved by matching the fixing column and the fixing hole.

Preferably, the ring is provided with two or more threaded holes, and screws for fixing the ring are inserted into the threaded holes.

In the wall penetrating device for the power cable with better stability, the screw penetrates through the threaded hole and is screwed on the fixing pipe, so that the ring can be prevented from rotating, and the stability of the pipe body is further improved.

Preferably, the bottom end of the screw is provided with a soft gasket.

In the wall penetrating device for the power cable with better stability, the soft gasket is arranged to prevent the screw from damaging the fixing pipe.

The present invention provides a power cable protective sleeve having a waterproof construction that overcomes some or all of the deficiencies of the prior art.

The power cable protective sleeve with the waterproof structure comprises a pipe body, wherein a pipe cavity is arranged in the pipe body, a first movable pipe is arranged in the pipe cavity, a first convex ring is arranged at the left end of the first movable pipe, and the first convex ring is in threaded connection with the wall of the pipe cavity; a third movable pipe and a second movable pipe are respectively sleeved on the inner side and the outer side of the right end of the first movable pipe in a left-right stretching mode, and the third movable pipe is positioned in the inner cavity of the second movable pipe; a baffle ring is arranged at the right end of the second movable pipe, a second convex ring is arranged at the right end of the third movable pipe, and the second convex ring abuts against the inner wall of the right end of the second movable pipe; a plurality of first chock blocks are arranged on the left side of the first convex ring, and a plurality of second chock blocks are arranged on the right side of the second convex ring;

the top of the pipe body is provided with a water inlet, the top in the pipe cavity is provided with a first water collecting tank, a first water collecting cavity is arranged in the first water collecting tank, and the first water collecting cavity is communicated with the water inlet; a second water collecting tank is arranged at the bottom in the cavity of the tube, a second water collecting cavity is arranged in the second water collecting tank, and the second water collecting cavity is communicated with the first water collecting cavity through a plurality of connecting pipes; the second movable pipe is located in the middle of the first water collecting tank and the second water collecting tank.

In the power cable protection sleeve with the waterproof structure, the first convex ring at the left end of the first movable pipe is in threaded connection with the pipe cavity, when the first movable pipe rotates, the left end of the first movable pipe can move towards the pipe cavity, so that the first chock block can move towards the pipe cavity, and the first chock block can clamp an electric pipeline at the left end of the first movable pipe, so that the left end of the electric pipeline is clamped; the second movable pipe is sleeved with the first movable pipe, the right end of the second movable pipe is provided with the baffle ring, and the baffle ring is arranged at the right end of the pipe cavity, so that the baffle ring can be rotated to realize the rotation of the first movable pipe, and the second movable pipe can horizontally move, so that the baffle ring can be attached to the right end face of the pipe body, the size is reduced, the baffle ring can be separated from the pipe body, and the baffle ring can be conveniently held by hands; the third movable pipe also cup joints with first movable pipe, also can the horizontal migration, the migration range of second movable pipe is bigger than the migration range of third movable pipe, the second chock that the right-hand member of third movable pipe can be extruded in the right-hand movement of second movable pipe, make the second chock press from both sides tight electrical pipeline, electrical pipeline right-hand member is pressed from both sides tightly, like this, electrical pipeline is pressed from both sides tightly in the body effectively steadily, prevent that electrical pipeline from rocking, also can prevent rainwater and foreign matter from entering into the body from the body both ends, guarantee the cleanliness in the lumen. The stability between second activity pipe and the third activity pipe can be guaranteed in the setting of second bulge loop, also makes things convenient for the installation of second chock.

The setting of body top inlet opening can conveniently collect body top water and collect first water-collecting cavity, and first water-collecting cavity internal water can stay the second water-collecting cavity through the connecting pipe, and first water-collecting cavity, second water-collecting cavity and connecting pipe all have ponding like this, and these ponding can dispel the heat to the internal electric pipeline of geminate transistors, guarantee electric pipeline's safety.

Preferably, a first clamping block is arranged on the inner side of the right end of the first movable pipe, a first clamping cavity is arranged at the left end of the third movable pipe, and the first clamping block can be clamped in the first clamping cavity; a second clamping block is arranged on the outer side of the right end of the first movable pipe, a second clamping cavity is arranged at the left end of the second movable pipe, and the second clamping block can be clamped in the second clamping cavity.

In the power cable protective sleeve with the waterproof structure, the first clamping block is matched with the first clamping cavity, so that the third movable pipe can be sleeved on the first movable pipe in a left-right stretching mode, and the third movable pipe and the first movable pipe cannot rotate relatively. The cooperation in second fixture block and second card chamber for the second movable tube can control tensile cup joint on first movable tube, and the second movable tube can not rotate with first movable tube relatively moreover.

Preferably, the plurality of first chock blocks are annularly distributed by taking the first convex ring as a center, the inner side of each first chock block is a plane and is aligned with the inner cavity surface of the first movable tube, the outer side of each first chock block is an inclined plane, and the lowest point of each first chock block is aligned with the inner cavity surface of the tube cavity; the plurality of second chock blocks are annularly distributed by taking the second convex ring as a center, the inner side of each second chock block is a plane and is aligned with the inner cavity surface of the third movable tube, the outer side of each second chock block is an inclined plane, and the lowest point of each second chock block is aligned with the inner cavity surface of the second movable tube.

In the power cable protection sleeve with the waterproof structure, when the first plug block moves into the tube cavity, the inclined surface on the outer side of the first plug block is extruded by the tube cavity, and at the moment, the inner side of the first plug block is folded to clamp the electric pipeline. When the second chock moves towards the inside of the second movable pipe, the inclined plane on the outer side of the second chock is extruded, and the inner side of the second chock is folded to clamp the electric pipeline.

In the power cable protective sleeve with the waterproof structure, the baffle ring is detachably mounted, so that the second movable pipe is conveniently mounted, the diameter of the baffle ring is the same as that of the pipe body, the baffle ring can be aligned with the pipe body, the baffle ring can be fixed with the pipe body through the matching of the first fixing hole, the second fixing hole and the screw, the baffle ring can be prevented from moving after an electric pipeline is clamped, and the clamping stability is ensured.

In the power cable protective sleeve with the waterproof structure, the arc structures of the first connecting pipe and the second connecting pipe can not block the threading of an electric pipeline.

In the power cable protective sleeve with the waterproof structure, the bottom surface of the first water collecting groove, the second water collecting groove, the inner side of the first connecting pipe and the inner side of the second connecting pipe can be connected into a circle, so that an electric pipeline cannot be scratched when passing through the circular connecting pipe.

In the power cable protective sleeve with the waterproof structure, the arrangement of the water outlet holes can discharge accumulated water, and the accumulated water can be cleaned when the pipe body is not used, so that the power cable protective sleeve is very convenient.

In the power cable protection sleeve with the waterproof structure, the positioning strip is arranged, so that the first water collecting groove can be clamped by the positioning strip, the position stability of the first water collecting groove is ensured, and the positions of the second water collecting groove and the connecting pipe are also fixed.

In the power cable protection sleeve with the waterproof structure, the waterproof rubber pad is arranged, so that water cannot leak below the second water collecting tank.

In the power cable protection sleeve with the waterproof structure, the notch is arranged, so that the integral structure of the first water collecting tank, the connecting pipe and the second water collecting tank can be conveniently installed and detached. The additional waterproof rubber pad can prevent water leakage.

The present invention provides a through-wall protection tube for electrical cables which overcomes some or some of the disadvantages of the prior art.

The electric cable wall-penetrating protection tube comprises a tube body, wherein a tube cavity is arranged in the tube body, a first movable tube is arranged in the tube cavity, a first convex ring is arranged at the left end of the first movable tube, and the first convex ring is in threaded connection with the wall of the tube cavity; a third movable pipe and a second movable pipe are respectively sleeved on the inner side and the outer side of the right end of the first movable pipe in a left-right stretching mode, and the third movable pipe is positioned in the inner cavity of the second movable pipe; a baffle ring is arranged at the right end of the second movable pipe, a second convex ring is arranged at the right end of the third movable pipe, and the second convex ring abuts against the inner wall of the right end of the second movable pipe; a plurality of first chock blocks are arranged on the left side of the first convex ring, and a plurality of second chock blocks are arranged on the right side of the second convex ring;

the outer side of the pipe body is in threaded sleeve connection with a fixed pipe, the outer side of the fixed pipe is in threaded sleeve connection with more than two lantern rings, and the outer side face of the fixed pipe and the lantern rings are arranged in a cement layer of the wall body through hole; two rings are further sleeved on the outer side of the pipe body in a threaded manner and located at two ends of the fixed pipe, a containing cavity is arranged on the inner side of each ring, and the wall of each containing cavity can be sleeved on the outer side of the fixed pipe in a threaded manner.

In the electric cable through-wall protection tube, the first convex ring at the left end of the first movable tube is in threaded connection with the tube cavity, when the first movable tube rotates, the left end of the first movable tube can move towards the tube cavity, so that the first chock block can move towards the tube cavity, and the first chock block can clamp an electric pipeline at the left end of the first movable tube, so that the left end of the electric pipeline is clamped; the second movable pipe is sleeved with the first movable pipe, the right end of the second movable pipe is provided with the baffle ring, and the baffle ring is arranged at the right end of the pipe cavity, so that the baffle ring can be rotated to realize the rotation of the first movable pipe, and the second movable pipe can horizontally move, so that the baffle ring can be attached to the right end face of the pipe body, the size is reduced, the baffle ring can be separated from the pipe body, and the baffle ring can be conveniently held by hands; the third movable pipe also cup joints with first movable pipe, also can the horizontal migration, the migration range of second movable pipe is bigger than the migration range of third movable pipe, the second chock that the right-hand member of third movable pipe can be extruded in the right-hand movement of second movable pipe, make the second chock press from both sides tight electrical pipeline, electrical pipeline right-hand member is pressed from both sides tightly, like this, electrical pipeline is pressed from both sides tightly in the body effectively steadily, prevent that electrical pipeline from rocking, also can prevent rainwater and foreign matter from entering into the body from the body both ends, guarantee the cleanliness in the lumen. The stability between second activity pipe and the third activity pipe can be guaranteed in the setting of second bulge loop, also makes things convenient for the installation of second chock.

The screw thread of body and fixed pipe cup joints for the body can be dismantled from fixed pipe, and in fixed pipe installation wall body, the installation and the dismantlement of body are all very convenient. The setting of the lantern ring can prevent that fixed pipe from pulling out in the wall body, improves the stability of fixed pipe, and lantern ring screw thread cup joints in the fixed outside of tubes, and this makes the position that can conveniently adjust the lantern ring, makes the mounted position of fixed pipe better, and the installation is more stable. The ring is in threaded connection with the pipe body, so that when the ring is in threaded connection with the fixed pipe, the pipe body cannot rotate in the fixed pipe, and the stability of the pipe body is guaranteed.

In the electric cable wall-penetrating protection tube, the first clamping block is matched with the first clamping cavity, so that the third movable tube can be sleeved on the first movable tube in a left-right stretching mode, and the third movable tube and the first movable tube cannot rotate relatively. The cooperation in second fixture block and second card chamber for the second movable tube can control tensile cup joint on first movable tube, and the second movable tube can not rotate with first movable tube relatively moreover.

In the electric cable wall-penetrating protection tube, when the first plug block moves towards the tube cavity, the inclined plane on the outer side of the first plug block is extruded by the tube cavity, and at the moment, the inner side of the first plug block is folded to clamp an electric pipeline. When the second chock moves towards the inside of the second movable pipe, the inclined plane on the outer side of the second chock is extruded, and the inner side of the second chock is folded to clamp the electric pipeline.

According to the electric cable wall-penetrating protection pipe, the baffle ring is detachably mounted, so that the second movable pipe can be conveniently mounted, the diameter of the baffle ring is the same as that of the pipe body, the baffle ring can be aligned with the pipe body, the baffle ring can be fixed with the pipe body through the matching of the first fixing hole, the second fixing hole and the screw, the baffle ring can be prevented from moving after an electric pipeline is clamped, and the clamping stability is guaranteed.

In the through-wall protection tube for the electrical cable, the inner ring is sleeved on the fixed tube and is made of hard materials, so that the stability of the threaded connection between the lantern ring and the fixed tube can be ensured; when the fixed pipe is installed, if the diameter of the outer ring is larger than that of the wall through hole, the outer ring is made of hard materials and cannot enter the wall through hole, and therefore the outer ring is made of soft materials and can be conveniently plugged into the wall through hole.

In the electric cable wall-penetrating protection pipe, the thickness of the outer ring is gradually reduced from bottom to top, so that the outer ring can further enter the through hole of the wall body conveniently.

In the electric cable wall-penetrating protection pipe, the arrangement of the clamping grooves and the convex strips can improve the connection stability of the inner ring and the outer ring.

In the electric cable wall-penetrating protection pipe, the connection stability of the inner ring and the outer ring can be further improved by matching the fixing column and the fixing hole.

In the electric cable wall-through protection tube, the screw penetrates through the threaded hole and is screwed on the fixing tube, so that the ring can be prevented from rotating, and the stability of the tube body is further improved.

Preferably, the bottom end of the screw is provided with a soft gasket.

In the electric cable wall-through protection pipe, the soft gasket is arranged to prevent the screw from damaging the fixing pipe.

Drawings

Fig. 1 is a schematic structural view of an electric line protection pipe having a clamping structure in embodiment 1;

fig. 2 is an enlarged view of the structures of the first fixture block and the second fixture block in embodiment 1;

FIG. 3 is a schematic right view of a second block according to embodiment 1;

FIG. 4 is a schematic structural view of a protection device for electric lines according to embodiment 2;

FIG. 5 is a schematic view showing the structure of a connecting pipe in embodiment 2;

FIG. 6 is a schematic structural view of a positioning strip and a waterproof rubber pad in example 2;

FIG. 7 is a schematic view showing a structure of a notch in example 2;

fig. 8 is a schematic structural view of a wall penetrating device for power cables with better stability in embodiment 3;

fig. 9 is a right side view of a wall penetrating device for power cables with better stability in embodiment 3;

FIG. 10 is a schematic view showing the structure of a collar in example 3;

fig. 11 is a right side view schematically showing a collar in example 3.

Detailed Description

For a further understanding of the invention, reference should be made to the following detailed description taken in conjunction with the accompanying drawings and examples. It is to be understood that the examples are illustrative of the invention and not limiting.

Example 1

As shown in fig. 1, 2 and 3, the present embodiment provides an electrical pipeline protection tube with a clamping structure, which includes a tube body 110, a tube cavity 111 is disposed in the tube body 110, a first movable tube 120 is disposed in the tube cavity 111, a first convex ring 121 is disposed at a left end of the first movable tube 120, and the first convex ring 121 is screwed on a wall of the tube cavity 111; the inner side and the outer side of the right end of the first movable pipe 120 are respectively sleeved with a third movable pipe 160 and a second movable pipe 140 which can be stretched left and right, and the third movable pipe 160 is positioned in the inner cavity of the second movable pipe 140; the right end of the second movable pipe 140 is provided with a baffle ring 150, the right end of the third movable pipe 160 is provided with a second convex ring 161, and the second convex ring 161 is abutted against the inner wall of the right end of the second movable pipe 140; the first convex ring 121 is provided with a plurality of first stoppers 131 on the left side, and the second convex ring 161 is provided with a plurality of second stoppers 132 on the right side.

The first convex ring 121 at the left end of the first movable tube 120 is in threaded connection with the tube cavity 111, when the first movable tube 120 rotates, the left end of the first movable tube 120 can move into the tube cavity 111, so that the first stopper 131 can move into the tube cavity 111, and the first stopper 131 can clamp the electrical pipeline at the left end of the first movable tube 120, so that the left end of the electrical pipeline is clamped; the second movable tube 140 is sleeved with the first movable tube 120, the right end of the second movable tube 140 is provided with the baffle ring 150, and the baffle ring 150 is arranged at the right end of the tube cavity 111, so that the baffle ring 150 can be rotated to realize the rotation of the first movable tube 120, which is very convenient, and the second movable tube 140 can horizontally move, so that the baffle ring 150 can be attached to the right end surface of the tube body 110, the volume is reduced, the baffle ring 150 can also be separated from the tube body 110, and the baffle ring 150 can be conveniently held by hands; the third movable tube 160 is also sleeved with the first movable tube 120 and can move horizontally, the moving range of the second movable tube 140 is larger than that of the third movable tube 160, and the second movable tube 140 moves rightwards to press the second stopper 132 at the right end of the third movable tube 160, so that the second stopper 132 clamps the electrical pipeline tightly, and the right end of the electrical pipeline is clamped tightly, therefore, the electrical pipeline is effectively and stably clamped in the tube body 110, the electrical pipeline is prevented from shaking, rainwater and foreign matters can be prevented from entering the tube body 110 from two ends of the tube body 110, and the cleanliness in the tube cavity 111 is ensured. The second protrusion ring 161 is provided to ensure stability between the second movable tube 140 and the third movable tube 160, and also to facilitate installation of the second stopper 132.

In this embodiment, the first engaging block 122 is disposed on the inner side of the right end of the first movable tube 120, the first engaging cavity 162 is disposed on the left end of the third movable tube 160, and the first engaging block 122 can be engaged in the first engaging cavity 162.

The cooperation between the first latch 122 and the first latch cavity 162 enables the third movable tube 160 to be sleeved on the first movable tube 160 in a left-right stretching manner, and the third movable tube 160 and the first movable tube 120 cannot rotate relatively.

In this embodiment, the outer side of the right end of the first movable tube 120 is provided with a second clamping block 123, the left end of the second movable tube 140 is provided with a second clamping cavity 141, and the second clamping block 123 can be clamped in the second clamping cavity 141.

The second block 123 and the second block cavity 141 are matched, so that the second movable tube 140 can be sleeved on the first movable tube 160 in a left-right stretching manner, and the second movable tube 140 and the first movable tube 120 cannot rotate relatively.

In this embodiment, the plurality of first stoppers 131 are annularly distributed around the first convex ring 121, the inner side of the first stopper 131 is a plane and aligned with the inner cavity surface of the first movable tube 120, the outer side of the first stopper 132 is an inclined surface, and the lowest point is aligned with the cavity surface of the tube cavity 111.

When the first block 131 moves into the lumen 111, the slope on the outer side of the first block 131 is pressed by the lumen 111, and the inner side of the first block 132 is folded to clamp the electric wire.

In this embodiment, the plurality of second stoppers 132 are annularly distributed around the second convex ring 161 as a center, the inner side of the second stopper 132 is a plane and aligned with the inner cavity surface of the third movable tube 160, the outer side of the second stopper 132 is an inclined plane, and the lowest point is aligned with the inner cavity surface of the second movable tube 140.

When the second plunger 132 moves into the second movable tube 140, the slope of the outside of the second plunger 132 is pressed, and the inside of the second plunger 132 is closed to clamp the electrical pipeline.

In this embodiment, the blocking ring 150 is detachably mounted on the second movable tube 140, the diameter of the blocking ring 150 is the same as that of the tube body 110, the blocking ring 150 is provided with a first fixing hole 151, the tube body 110 is provided with a corresponding second fixing hole 170, and screws can be inserted into the first fixing hole 151 and the second fixing hole 170.

Keep off ring 150 detachable installation, the installation of the second movable tube 140 of being convenient for, keep off ring 150 diameter and body 110 the same for keep off ring 150 and body 110 and be neat, the cooperation of first fixed orifices 151, second fixed orifices 170 and screw makes and keeps off ring 150 and body 110 fixed, keeps off ring 150 still can remove after preventing to press from both sides tight electric pipeline, guarantees the stability of pressing from both sides tightly.

The embodiment also provides a clamping method of the electric pipeline protection pipe with the clamping structure, which comprises the following steps:

firstly, the left end of the electric pipeline passes through the third movable pipe 160 and the first movable pipe 120 in sequence;

secondly, the second movable pipe 120 is pulled rightwards, so that the second chock 132 clamps the electric pipeline;

thirdly, the baffle ring 150 is held to rotate the second movable pipe 120, so that the first convex ring 121 moves rightwards, and the first stopper 131 clamps the electric pipeline;

fourthly, moving the second movable tube 120 and the third movable tube 160 leftward to make the baffle ring 150 fit with the tube body 110;

fifthly, the second movable tube 140 and the third movable tube 160 are relatively moved, and the second chock 132 is adjusted, so that the second chock 132 clamps the electric pipeline;

sixthly, the baffle ring 150 is fixed on the right end face of the pipe body 110.

The electric pipeline penetrates from the right end, so that the electric pipeline is not blocked, and the electric pipeline is convenient to penetrate; the second stopper 132 is not clamped in step two, otherwise the movement of the third movable tube 160 is troublesome.

Example 2

As shown in fig. 4 and fig. 5, the present embodiment provides a protection device for an electrical pipeline, which includes a pipe body 110, a pipe cavity 111 is disposed in the pipe body 110, a water inlet 210 is disposed at the top of the pipe body 110, a first water collecting tank 220 is disposed at the top of the pipe cavity 111, a first water collecting cavity 221 is disposed in the first water collecting tank 220, and the first water collecting cavity 221 is communicated with the water inlet 210; the bottom in the cavity 111 of the tube cavity is provided with a second water collecting groove 230, a second water collecting cavity 231 is arranged in the second water collecting groove 230, and the second water collecting cavity 231 is communicated with the first water collecting cavity 221 through a plurality of connecting pipes 240.

The setting of body 110 top inlet opening 210 can conveniently collect body 110 top water in the first chamber 221 that catchments, and first chamber 221 internal water that catchments can stay the second chamber 231 that catchments through connecting pipe 240, all has ponding in first chamber 221, the second chamber 231 that catchments and the connecting pipe 240 that catchments like this, and these ponding can dispel the heat to the electric pipeline in the body 110, guarantee electric pipeline's safety.

In this embodiment, the connection pipe 240 includes a first connection pipe 241 and a second connection pipe 242, the first connection pipe 241 and the second connection pipe 242 are both arc-shaped, and the first connection pipe 241 and the second connection pipe 242 are symmetrically distributed and have centers on the central axis of the pipe body 110.

The circular arc-shaped structures of the first and

second connection pipes

241 and 242 can not obstruct the threading of the electric lines.

In this embodiment, the bottom surface of the first water collecting tank 220 and the top surface of the second water collecting tank 230 are both concave, and the bottom surface of the first water collecting tank 220, the second water collecting tank 230, the inner side of the first connecting pipe 241 and the inner side of the second connecting pipe 242 may be connected into a circle.

The bottom surface of the first water collection groove 220, the second water collection groove 230, the inner side of the first connection pipe 241 and the inner side of the second connection pipe 242 may be connected in a circle so that the electric lines are not scratched when passing therethrough.

In this embodiment, the bottom of the pipe body 110 is provided with a water outlet hole 250, a plug is disposed on the water outlet hole 250, and the water outlet hole 250 is communicated with the second water collecting cavity 231.

The setting of apopore 250 can the drainage ponding, can clear up ponding when body 110 does not use, and is very convenient.

As shown in fig. 6, in this embodiment, two positioning bars 260 for locking the position of the first water collecting groove 220 are disposed in the first water collecting cavity 221, and the positioning bars 260 are connected to the inner wall of the tube cavity 111.

The positioning bar 260 is provided so that the first water collecting channel 220 can be clamped by the positioning bar 260, the position stability of the first water collecting channel 220 is ensured, and the positions of the second water collecting channel 230 and the connecting pipe 240 are also fixed.

In this embodiment, a waterproof rubber pad 270 is disposed on the bottom surface of the second water collecting groove 230.

Through the arrangement of the waterproof rubber pad 270, water cannot leak below the second water collecting tank 230.

As shown in fig. 7, in this embodiment, a notch 222 for passing the positioning bar 260 is disposed on the first water collecting groove 220, and an additional waterproof rubber pad 270 is disposed on an inner wall of the notch 222 and a top surface of the first water collecting groove 220.

The provision of the notch 222 enables the overall structure of the first sump 220, the connection pipe 240 and the second sump 230 to be conveniently installed and removed. The additional waterproof rubber pad 270 can prevent water leakage.

Example 3

As shown in fig. 8 and 9, the embodiment provides a wall penetrating device for a power cable with better stability, which includes a tube body 110, a tube cavity 111 is arranged in the tube body 110, a fixing tube 310 is screwed on the outer side of the tube body 110, two or more lantern rings 320 are screwed on the outer side of the fixing tube 310, and the outer side of the fixing tube 310 and the lantern rings 320 are arranged in a cement layer of a wall through hole; two rings 330 are further sleeved on the outer side of the tube body 110 in a threaded manner, the two rings 330 are located at two ends of the fixed tube 310, an accommodating cavity 331 is arranged on the inner side of each ring 330, and the cavity wall of each accommodating cavity 331 can be sleeved on the outer side of the fixed tube 310 in a threaded manner.

The pipe body 110 is in threaded sleeve connection with the fixing pipe 310, so that the pipe body 110 can be detached from the fixing pipe 310, and when the fixing pipe 310 is installed in a wall body, the pipe body 110 is convenient to install and detach. The setting of lantern ring 320 can prevent that fixed pipe 310 from pulling out in the wall body, improves fixed pipe 310's stability, and lantern ring 320 screw thread cup joints in the fixed pipe 310 outside, and this makes the position that can conveniently adjust lantern ring 320, makes fixed pipe 310's mounted position better, and the installation is more stable. The ring 330 is screwed with the pipe body 110, so that when the ring 330 is screwed on the fixing pipe 310, the pipe body 110 does not rotate in the fixing pipe 310, and the stability of the pipe body 110 is ensured.

As shown in fig. 10 and 11, in the present embodiment, the collar 320 includes an inner ring 321 and an outer ring 322, the inner ring 321 is made of a hard material, and the outer ring 322 is made of a soft material.

The inner ring 322 is sleeved on the fixed pipe 310, and the inner ring 322 is made of hard material, so that the stability of the threaded connection between the lantern ring 320 and the fixed pipe 310 can be ensured; when the fixing pipe 310 is installed, if the diameter of the outer ring 322 is larger than that of the wall through hole, the outer ring 322 will not enter the wall through hole due to the adoption of hard materials, and therefore the outer ring 322 can be conveniently plugged into the wall through hole due to the adoption of soft materials.

In this embodiment, the outer ring 322 has a thickness gradually decreasing from bottom to top.

The outer ring 322 has a thickness that decreases from bottom to top, which further facilitates the entry of the outer ring 322 into the wall through-hole.

In this embodiment, two side surfaces of the inner ring 321 are respectively provided with a slot 3211, a protruding strip 3221 is arranged in the slot 3211, and the protruding strip 3221 is integrally connected with the outer ring 322.

The stability of the connection between the inner ring 321 and the outer ring 322 can be improved by the matching of the slots 3211 and the convex strips 3221.

In this embodiment, a plurality of fixing posts 323 are disposed on the slot wall of the slot 3211, a plurality of fixing holes are disposed on the protruding strip 3221, and the fixing posts 323 are clamped in the corresponding fixing holes.

The stability of the connection of the inner ring 321 and the outer ring 322 can be further improved by the matching of the fixing post 323 and the fixing hole.

In this embodiment, the ring 330 is provided with two or more screw holes 332, and screws 340 for fixing the ring 330 are inserted into the screw holes 332.

The screw 340 is screwed to the fixing tube 310 through the screw hole 332, which prevents the ring 330 from rotating, thereby further improving the stability of the tube body 110.

In this embodiment, a soft gasket 341 is disposed at the bottom end of the screw 340.

The soft washer 341 is provided to prevent the screw 340 from damaging the fixing tube 310.

Example 4

The power cable protective sleeve with the waterproof structure comprises a pipe body 110, wherein a pipe cavity 111 is arranged in the pipe body 110, a first movable pipe 120 is arranged in the pipe cavity 111, a first convex ring 121 is arranged at the left end of the first movable pipe 120, and the first convex ring 121 is in threaded connection with the wall of the pipe cavity 111; the inner side and the outer side of the right end of the first movable pipe 120 are respectively sleeved with a third movable pipe 160 and a second movable pipe 140 which can be stretched left and right, and the third movable pipe 160 is positioned in the inner cavity of the second movable pipe 140; the right end of the second movable pipe 140 is provided with a baffle ring 150, the right end of the third movable pipe 160 is provided with a second convex ring 161, and the second convex ring 161 is abutted against the inner wall of the right end of the second movable pipe 140; a plurality of first stoppers 131 are arranged on the left side of the first convex ring 121, and a plurality of second stoppers 132 are arranged on the right side of the second convex ring 161;

the top of the pipe body 110 is provided with a water inlet 210, the top in the cavity of the pipe cavity 111 is provided with a first water collecting tank 220, a first water collecting cavity 221 is arranged in the first water collecting tank 220, and the first water collecting cavity 221 is communicated with the water inlet 210; a second water collecting groove 230 is formed in the bottom in the cavity of the tube cavity 111, a second water collecting cavity 231 is formed in the second water collecting groove 230, and the second water collecting cavity 231 is communicated with the first water collecting cavity 221 through a plurality of connecting pipes 240; the second movable pipe 140 is located in the middle of the first and second

water collecting grooves

220 and 230.

In this embodiment, the inner side of the right end of the first movable tube 120 is provided with a first block 122, the left end of the third movable tube 160 is provided with a first block cavity 162, and the first block 122 can be blocked in the first block cavity 162; the outer side of the right end of the first movable tube 120 is provided with a second clamping block 123, the left end of the second movable tube 140 is provided with a second clamping cavity 141, and the second clamping block 123 can be clamped in the second clamping cavity 141.

The cooperation between the first latch 122 and the first latch cavity 162 enables the third movable tube 160 to be sleeved on the first movable tube 160 in a left-right stretching manner, and the third movable tube 160 and the first movable tube 120 cannot rotate relatively. The second block 123 and the second block cavity 141 are matched, so that the second movable tube 140 can be sleeved on the first movable tube 160 in a left-right stretching manner, and the second movable tube 140 and the first movable tube 120 cannot rotate relatively.

In this embodiment, the plurality of first stoppers 131 are annularly distributed with the first convex ring 121 as a center, the inner side of the first stopper 131 is a plane and is aligned with the inner cavity surface of the first movable tube 120, the outer side of the first stopper 132 is an inclined surface, and the lowest point is aligned with the cavity surface of the tube cavity 111; the plurality of second plugs 132 are annularly distributed with the second convex ring 161 as a center, the inner side of the second plugs 132 is a plane and is aligned with the inner cavity surface of the third movable tube 160, the outer side of the second plugs 132 is an inclined plane, and the lowest point is aligned with the inner cavity surface of the second movable tube 140.

When the first block 131 moves into the lumen 111, the slope on the outer side of the first block 131 is pressed by the lumen 111, and the inner side of the first block 132 is folded to clamp the electric wire. When the second plunger 132 moves into the second movable tube 140, the slope of the outside of the second plunger 132 is pressed, and the inside of the second plunger 132 is closed to clamp the electrical pipeline.

The circular arc-shaped structures of the first and

second connection pipes

241 and 242 can not obstruct the threading of the electric lines.

In this embodiment, two positioning bars 260 for locking the position of the first water collecting groove 220 are disposed in the first water collecting cavity 221, and the positioning bars 260 are connected to the inner wall of the cavity 111.

In this embodiment, the first water collecting groove 220 is provided with a notch 222 for the positioning bar 260 to pass through, and the inner wall of the notch 222 and the top surface of the first water collecting groove 220 are also provided with another waterproof rubber pad 270.

In this embodiment, the first sump 220, the connection pipe 240, and the second sump 230 are installed, and then the first movable pipe 120, the second movable pipe 140, and the third movable pipe 160 are installed.

Example 5

The electric cable wall-through protection tube comprises a tube body 110, wherein a tube cavity 111 is arranged in the tube body 110, a first movable tube 120 is arranged in the tube cavity 111, a first convex ring 121 is arranged at the left end of the first movable tube 120, and the first convex ring 121 is in threaded connection with the wall of the tube cavity 111; the inner side and the outer side of the right end of the first movable pipe 120 are respectively sleeved with a third movable pipe 160 and a second movable pipe 140 which can be stretched left and right, and the third movable pipe 160 is positioned in the inner cavity of the second movable pipe 140; the right end of the second movable pipe 140 is provided with a baffle ring 150, the right end of the third movable pipe 160 is provided with a second convex ring 161, and the second convex ring 161 is abutted against the inner wall of the right end of the second movable pipe 140; a plurality of first stoppers 131 are arranged on the left side of the first convex ring 121, and a plurality of second stoppers 132 are arranged on the right side of the second convex ring 161;

the outer side of the pipe body 110 is in threaded sleeve connection with a fixed pipe 310, the outer side of the fixed pipe 310 is in threaded sleeve connection with more than two lantern rings 320, and the outer side face of the fixed pipe 310 and the lantern rings 320 are arranged in a cement layer of the wall through hole; two rings 330 are further sleeved on the outer side of the tube body 110 in a threaded manner, the two rings 330 are located at two ends of the fixed tube 310, an accommodating cavity 331 is arranged on the inner side of each ring 330, and the cavity wall of each accommodating cavity 331 can be sleeved on the outer side of the fixed tube 310 in a threaded manner.

In this embodiment, the collar 320 includes an inner ring 321 and an outer ring 322, the inner ring 321 is made of a hard material, and the outer ring 322 is made of a soft material.

The arrangement of the slots 3211 and the protrusions 3221 can improve the connection stability between the inner ring 321 and the outer ring 322.

Example 6

This embodiment provides an electric line protection pipe including all the structures of embodiments 1 to 5.

The present invention and its embodiments have been described above schematically, without limitation, and what is shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. Therefore, if the person skilled in the art receives the teaching, without departing from the spirit of the invention, the person skilled in the art shall not inventively design the similar structural modes and embodiments to the technical solution, but shall fall within the scope of the invention.

Claims

1. Electric cable wall-penetrating protection tube, its characterized in that: the pipe comprises a pipe body (110), a pipe cavity (111) is arranged in the pipe body (110), a first movable pipe (120) is arranged in the pipe cavity (111), a first convex ring (121) is arranged at the left end of the first movable pipe (120), and the first convex ring (121) is in threaded connection with the wall of the pipe cavity (111); the inner side and the outer side of the right end of the first movable pipe (120) are respectively sleeved with a third movable pipe (160) and a second movable pipe (140) in a left-right stretching mode, and the third movable pipe (160) is located in the inner cavity of the second movable pipe (140); a baffle ring (150) is arranged at the right end of the second movable pipe (140), a second convex ring (161) is arranged at the right end of the third movable pipe (160), and the second convex ring (161) is abutted against the inner wall of the right end of the second movable pipe (140); a plurality of first chocks (131) are arranged on the left side of the first convex ring (121), and a plurality of second chocks (132) are arranged on the right side of the second convex ring (161);

the outer side of the pipe body (110) is in threaded sleeve connection with a fixed pipe (310), the outer side of the fixed pipe (310) is in threaded sleeve connection with more than two lantern rings (320), and the outer side face of the fixed pipe (310) and the lantern rings (320) are arranged in a cement layer of the wall through hole; two rings (330) are further sleeved on the outer side of the pipe body (110) in a threaded manner, the two rings (330) are located at two ends of the fixed pipe, an accommodating cavity (331) is arranged on the inner side of each ring (330), and the cavity wall of each accommodating cavity (331) can be sleeved on the outer side of the fixed pipe (310) in a threaded manner.

2. The electrical cable through-wall protection tube according to claim 1, wherein: a first clamping block (122) is arranged on the inner side of the right end of the first movable pipe (120), a first clamping cavity (162) is arranged on the left end of the third movable pipe (160), and the first clamping block (122) can be clamped in the first clamping cavity (162); the outer side of the right end of the first movable pipe (120) is provided with a second clamping block (123), the left end of the second movable pipe (140) is provided with a second clamping cavity (141), and the second clamping block (123) can be clamped in the second clamping cavity (141).

3. The electrical cable through-wall protection tube according to claim 2, wherein: the plurality of first plug blocks (131) are annularly distributed by taking the first convex ring (121) as a center, the inner sides of the first plug blocks (131) are planes and are aligned with the inner cavity surface of the first movable tube (120), the outer sides of the first plug blocks (132) are inclined planes, and the lowest point is aligned with the cavity surface of the tube cavity (111); the plurality of second chock blocks (132) are annularly distributed by taking the second convex ring (161) as a center, the inner side of each second chock block (132) is a plane and is aligned with the inner cavity surface of the third movable tube (160), the outer side of each second chock block (132) is an inclined plane, and the lowest point of each second chock block is aligned with the inner cavity surface of the second movable tube (140).

4. The electrical cable through-wall protection tube according to claim 3, wherein: keep off ring (150) detachably and install on second movable tube (140) and keep off ring (150) diameter the same with body (110) diameter, keep off and be equipped with first fixed orifices (151) on ring (150), be equipped with corresponding second fixed orifices (170) on body (110), can wear to be equipped with the screw in first fixed orifices (151) and second fixed orifices (170).

5. The electrical cable through-wall protection tube according to claim 4, wherein: the lantern ring (320) comprises an inner ring (321) and an outer ring (322), wherein the inner ring (321) is made of hard materials, and the outer ring (322) is made of soft materials.

6. The electrical cable through-wall protection tube according to claim 5, wherein: the outer ring (322) has a thickness gradually decreasing from bottom to top.

7. The electrical cable through-wall protection tube according to claim 6, wherein: the two side faces of the inner ring (321) are respectively provided with a clamping groove (3211), a convex strip (3221) is arranged in the clamping groove (3211), and the convex strip (3221) is integrally connected with the outer ring (322).

8. The electrical cable through-wall protection tube according to claim 7, wherein: be equipped with a plurality of fixed columns (323) on draw-in groove (3211) cell wall, be equipped with a plurality of fixed orificess on sand grip (3221), fixed column (323) card is in corresponding the fixed orificess.

9. The electrical cable through-wall protection tube according to claim 8, wherein: more than two threaded holes (332) are formed in the circular ring (330), and screws (340) for fixing the circular ring (330) penetrate through the threaded holes (332).

10. The electrical cable through-wall protection tube according to claim 9, wherein: the bottom end of the screw (340) is provided with a soft gasket (341).