CN111774644A - A pipe cutter for wire pipe cutting - Google Patents

Abstract

The invention discloses a pipe cutter for wire pipe cutting, comprising a mounting shell with a cavity inside, a mounting sleeve rotatably mounted on the mounting shell, a force-applying member rotatably mounted on the mounting shell, A transmission member for drivingly connecting the installation sleeve and the force-applying member, and a cutting member installed on the installation sleeve, the cutting member includes a collar fixed on one end of the installation sleeve away from the transmission member, on the collar Elastic clips are evenly spaced, the side of the elastic clip facing the axis of the collar is fixed with cutting teeth, and the outer side of the elastic clip is provided with a fixing piece for tightening all the elastic clips as a whole. The pipe cutter for wire pipe cutting of the present invention can perform circular cutting on the wire pipe, improve the pipe cutting efficiency, and solve the problems of high construction cost and waste of labor with traditional tools.

Description

A pipe cutter for wire pipe cutting

technical field

The invention relates to the technical field of pipe cutting, in particular to a pipe cutter for cutting wire pipes.

Background technique

When laying and discharging pipes for electrical equipment, since the diameter and length of the produced pipes of the same specification are the same size, when laying pipes, due to the limitation of indoor space, the pipes need to be cut. Cut the pipe to the required length, and then splicing and fixing, so that the pipe can be laid reasonably in the required laying position.

At present, when laying pipelines at the construction site, due to the limitation of site space and site power conditions, the steel conduit is manually sawed with a hacksaw. This construction process is time-consuming and labor-intensive, which affects the construction progress. Therefore, it is necessary to seek an economical and feasible pipe cutting tool to complete the rapid pipe cutting process.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a pipe cutter for wire pipe cutting, which can circularly cut the wire pipe, improve the pipe cutting efficiency, and solve the problems of high construction cost and waste of labor with traditional tools.

Above-mentioned purpose of the present invention is achieved through the following technical solutions:

A pipe cutter for wire pipe cutting, comprising a mounting shell with a cavity inside, a mounting sleeve rotatably mounted on the mounting shell, a force-applying member rotated and mounted on the mounting shell, a mounting sleeve located in the mounting shell A transmission member for driving connection between the pipe and the force-applying member, and a cutting member installed on the installation sleeve, the cutting member includes a collar fixed on the end of the installation sleeve away from the transmission member, and the collars are evenly spaced and arranged with An elastic clip, the side of the elastic clip facing the axis of the collar is fixed with cutting teeth, and the outer side of the elastic clip is provided with a fixing piece that tightens all the elastic clips as a whole.

By adopting the above technical solution, when the electric wire tube is cut, the wire tube is passed through the cutting piece and the installation sleeve, and then the wire tube is fixed, and the elastic clip is tightened by the fixing piece, so that the cutting teeth of the elastic clip abut against each other. Tightly on the outer wall of the wire tube, the fixed part provides a stable clamping force, and then the force-applying member is manually rotated to drive the installation sleeve and the cutting member to rotate synchronously, and the cutting teeth will cut the wire tube circularly, and the cutting efficiency is faster; After the teeth are cut to a certain depth, the cutting parts can be tightened twice to ensure the cutting effect, and at the same time, avoid the excessive pressure of the cutting teeth on the wire tube, and protect the cutting teeth.

The present invention further provides that: the transmission member includes a first bevel gear and a second bevel gear that mesh with each other, the first bevel gear is coaxially fixed to the installation sleeve, and the second bevel gear is the same as the force application member. The shaft is fixed.

By adopting the above technical solution, when the force applying crank is rotated, the second bevel gear is driven to rotate, and through the gear teeth meshing transmission, the first bevel gear and the installation sleeve are driven to rotate synchronously, so as to realize the rotation of the force application crank to the installation sleeve. control.

The present invention further provides that: the collar and the installation sleeve are detachably connected.

By adopting the above technical solution, the cutting piece can be directly replaced or repaired, and the service life of the pipe cutter can be prolonged.

The present invention further provides that: the fixing member is selected as a worm drive type hose hoop.

By adopting the above technical solution, the worm is tightened to tighten the hoop, thereby driving all the elastic clips to move toward the axis of the collar; and the worm cooperates with the hoop so that each elastic clip can be uniformly tightened, so as to prevent the cutting teeth from being under force. average, affecting the cutting effect.

The present invention is further provided as follows: a pipe holder for fixing the line pipe to be cut is fixed outside the installation shell, and the pipe holder comprises a vertical support, a lower arc-shaped plate fixed on the top of the support, and a buckle On the upper arc-shaped plate on the lower arc-shaped plate, a fixing component for pressing and fixing the upper arc-shaped plate is arranged between the lower arc-shaped plate and the upper arc-shaped plate.

By adopting the above technical solution, the wire tube is placed on the lower arc-shaped plate, and then the wire tube is clamped between the upper and lower arc-shaped plates by the fixing assembly, so as to realize the fixed installation of the wire tube.

The present invention is further provided as follows: the fixing assembly includes a connecting bolt hinged on the side wall of the lower arc-shaped plate and a clamping block threaded on the free end of the connecting bolt, and the outer edge of the upper arc-shaped plate is provided with a connecting bolt for connecting with the connecting bolt. The snap-fit slot for the bolt.

By adopting the above technical solution, the connecting bolt is rotated into the clamping groove, and then the clamping block is rotated, and the clamping block is pressed against the clamping groove, thereby pressing and fixing the upper arc plate on the lower arc plate.

The present invention is further provided that: the support member includes a vertically arranged support sleeve and a support rod slidably arranged in the support sleeve, and the support sleeve is provided with a limiter for restricting the sliding of the support rod.

By adopting the above technical solution, the arrangement of the support sleeve and the support rod enables the height of the support member to be adjustable, so that the line pipes of different diameters can be aligned with the installation sleeve.

The present invention is further provided that: the limiting member includes a transmission shaft horizontally penetrated on the support sleeve, one end of the transmission shaft is located in the support sleeve, the other end is located outside the support sleeve, and one end of the transmission shaft is located in the support sleeve A limit gear is fixedly connected, a rack is arranged on the support rod, the limit gear is meshed with the rack, and the tooth surface width of the limit gear is smaller than the tooth surface width of the rack; the transmission shaft is located in the sleeve The outer end of the pipe is fixed with a hand wheel, a fixed block is fixed on the transmission shaft, between the hand wheel and the outer wall of the support sleeve, and the outer wall of the support sleeve is provided with a countersunk hole matched with the fixed block.

By adopting the above technical solution, when the fixed block is embedded in the countersunk hole, the rotation of the transmission shaft can be restricted, thereby restricting the relative movement between the limiting tooth and the rack, and achieving the purpose of fixing the support rod. When the height of the support rod needs to be adjusted, pull the transmission shaft to pull out the fixing block from the countersunk hole, and then directly adjust the height of the support rod manually.

The present invention further provides that: the outer shape of the fixed block is gear-shaped.

By adopting the above technical solution, the fixing block is arranged in the shape of a gear so that the height of the support rod can be adjusted more finely.

In the present invention, two guide rods are vertically arranged on the support rod, the guide rods are located on both sides of the rack, and the support sleeve is provided with a chute.

By adopting the above technical solution, the guide rod is slidably arranged in the chute, and the two cooperate to guide and limit the support rod, so that the support rod slides more smoothly in the support sleeve.

To sum up, the present invention has the following beneficial effects:

1. Prepare a corresponding small pipe cutter for the line pipe cutting, fix the line pipe in the cutting piece and the installation sleeve during cutting, and then adjust the force of the cutting piece on the line pipe, and the cutting piece rotates to circularly cut the line pipe , the cutting efficiency is faster, and after cutting to a certain depth, it can be tightened twice to ensure the cutting effect, and at the same time avoid the excessive pressure of the cutting teeth on the wire tube, and protect the cutting teeth;

2. The elastic clips are tightened by the worm drive hose hoop and move toward the axis of the collar. The worm and the hoop can tighten the elastic clips evenly, so as to avoid uneven force on the cutting teeth and affect the cutting effect;

3. The height of the support is adjusted through the meshing of the rack and pinion. On the one hand, the adjustment precision is high, which is convenient for the alignment of the line pipe and the installation sleeve. , the overall adjustment process is fast and convenient.

Description of drawings

Fig. 1 is the structural representation of the pipe shearing device in the embodiment;

Fig. 2 is the structural representation of cutting member in the embodiment;

Fig. 3 is the enlarged view of A part in Fig. 1;

FIG. 4 is a schematic structural diagram of the support member and the limiting member in the embodiment.

In the figure, 1, the installation shell; 11, the cover; 12, the bearing seat; 13, the fixing plate; 2, the installation sleeve; 21, the top wire; bevel gear; 42, second bevel gear; 5, cutting piece; 51, collar; 52, elastic clip; 53, cutting tooth; 6, fixing piece; 7, pipe holder; 71, support piece; 711, support Sleeve; 712, support rod; 713, countersunk hole; 714, guide rod; 72, lower arc plate; 73, upper arc plate; 731, snap groove; 8, fixing component; 81, connecting bolt; 82 , snap block; 83, connecting ear; 9, limit piece; 91, drive shaft; 92, limit gear; 93, rack; 94, hand wheel; 95, fixed block; 20, wire pipe.

Detailed ways

The present invention will be further described in detail below with reference to the accompanying drawings.

A pipe cutter for wire pipe cutting, as shown in Fig. 1, includes a mounting shell 1 with a rectangular shape, the mounting shell 1 is hollow inside, the top of which is open, and a hinge that can close or open the top is hinged. Cover 11. The two mutually perpendicular vertical side walls of the mounting shell 1 are respectively provided with a mounting sleeve 2 and a force-applying crank 3, and the mounting sleeve 2 penetrates the mounting shell 1; The part of the sleeve 2 and the force-applying handle 3 extending into the mounting seat is matched with the bearing seat 12 so as to be rotatably mounted on the mounting shell 1 .

The inside of the installation shell 1 is also provided with a transmission member 4. The transmission member 4 includes a first bevel gear 41 and a second bevel gear 42 that mesh with each other. The first bevel gear 41 is fixed coaxially with the installation sleeve 2, and the second bevel gear 42 is coaxially connected with the force application handle 3; when the force application handle 3 is rotated, the second bevel gear 42 is driven to rotate, and through the gear teeth meshing transmission, the first bevel gear 41 and the installation sleeve 2 are driven to rotate synchronously to achieve The rotation control of the mounting sleeve 2 by the force-applying handle 3.

The end of the installation sleeve 2 located outside the installation shell 1 is detachably mounted with a cutting member 5. As shown in Figures 1 and 2, the cutting member 5 includes a collar 51, and the collar 51 is coaxial with the installation sleeve 2 and passes through it. Set in the installation sleeve 2; the end of the installation sleeve 2 is threadedly connected with a top wire 21, and the top wire 21 passes through the pipe wall of the installation sleeve 2 and is pressed against the collar 51, thereby fixing the collar 51 on the Install casing 2.

The side of the collar 51 facing away from the installation sleeve 2 is formed with elastic clips 52 extending evenly along the axis. The elastic clips 52 are annularly distributed, and the side facing the axis of the collar 51 is fixed with cutting teeth 53. The elastic clips 52 The outer side is provided with a fixing member 6 that tightens all the elastic clips 52 as a whole; in this embodiment, the fixing member 6 can be selected as a worm drive type hose hoop. The clip 52 moves towards the axis of the collar 51 .

As shown in FIG. 1 , a fixing plate 13 is fixed horizontally at the bottom of the installation shell 1 on the same side as the installation sleeve 2 , and a pipe holder 7 is fixedly connected to the fixing plate 13 . The pipe holder 7 includes a vertical fixing plate 13 . The support member 71 on the upper surface, the top of the support member 71 is fixed with a lower arc-shaped plate 72, the lower arc-shaped plate 72 is buckled with an upper arc-shaped plate 73, and the lower arc-shaped plate 72 and the upper arc-shaped plate 73 are arranged between There is a fixing assembly 8 for pressing and fixing the upper arc-shaped plate 73 .

As shown in FIG. 3 , the fixing assembly 8 includes a connecting bolt 81 and a clamping block 82 . One end of the connecting bolt 81 is hinged with a connecting lug 83 , the connecting lug 83 is fixed on the side wall of the lower arc-shaped plate 72 , and the other end of the connecting bolt 81 is hinged. An external thread is provided, the clamping block 82 is threadedly connected with the connecting bolt 81, and the clamping block 82 can be optionally a hexagonal nut. In this embodiment, the fixing components 8 are arranged in two groups, which are symmetrically distributed on both sides of the lower arc-shaped plate 72 .

The end of the upper arc-shaped plate 73 is provided with a clamping groove 731 that is adapted to the diameter of the connecting bolt 81, so that the connecting bolt 81 can be rotated vertically into the clamping groove 731; then the clamping block 82 is rotated, and the clamping block 82 is pressed against the engaging groove 731 , thereby pressing and fixing the upper arc-shaped plate 73 on the lower arc-shaped plate 72 .

Further, the height of the support member 71 is adjustable. As shown in FIG. 4 , the support member 71 includes a support sleeve 711 vertically fixed on the fixing plate 13 and a support rod 712 slidably disposed in the support sleeve 711 , the inner diameter of the support rod 712 is adapted to the inner diameter of the support sleeve 711 . The support sleeve 711 is also provided with a limiter 9 for fixing the support rod 712 . The limiter 9 includes a drive shaft 91 horizontally penetrated on the support sleeve 711 , and the drive shaft 91 slides with the outer wall of the support sleeve 711 . One end of the transmission shaft 91 located in the support sleeve 711 is fixedly connected to the limit gear 92, the side of the support rod 712 facing the limit gear 92 is provided with a rack 93 distributed in the vertical direction, the limit gear 92 and the rack 93 meshes with each other, and the thickness of the limit gear 92 is smaller than the width of the rack 93; the end of the transmission shaft 91 outside the support sleeve 711 is fixed with a hand wheel 94 that drives the transmission shaft 91 to move.

A fixing block 95 is fixed on the transmission shaft 91, between the handwheel 94 and the outer wall of the support sleeve 711. The fixing block 95 has a polygonal structure and is integrally arranged with the transmission shaft 91. The outer wall of the support sleeve 711 is provided with a fixing block 95. With the corresponding countersunk hole 713 , the transmission shaft 91 can slide and move on the support sleeve 711 along its axis, so that the fixing block 95 can be accommodated in the countersunk hole 713 .

When the fixing block 95 is embedded in the countersunk hole 713 , the rotation of the transmission shaft 91 can be restricted, thereby restricting the relative movement between the limiting gear 92 and the rack 93 , so as to achieve the purpose of fixing the support rod 712 . When the height of the support rod 712 needs to be adjusted, the transmission shaft 91 is pulled to pull the fixing block 95 out of the countersunk hole 713 , and then the height of the support rod 712 can be adjusted manually.

The fixing block 95 is arranged in the shape of a gear and corresponds to the teeth of the limit gear 92 one by one. Correspondingly, the shape of the countersunk hole 713 is adapted to the fixing block 95; in this way, the height of the support rod 712 can be adjusted. Minor adjustments.

Two guide rods 714 are symmetrically arranged on the support rod 712 and located on both sides of the rack 93. The guide rods 714 are distributed in the vertical direction. The support sleeve 711 is provided with corresponding sliding grooves. In the groove, the two cooperate to guide and limit the support rod 712 , so that the support rod 712 slides in the support sleeve 711 more smoothly and smoothly.

When the electrical conduit 20 is cut, the conduit 20 is first passed through the cutting member 5 and the installation sleeve 2 , and then the height of the support member 71 is adjusted so that the conduit 20 is coaxial with the installation sleeve 2 , and then passes through the fixing assembly 8 Clamp and fix the wire tube 20 between the upper and lower arc-shaped plates 72. After the wire tube 20 is fixed, use the worm drive type hose hoop to tighten the elastic clip 52, so that the cutting teeth 53 of the elastic clip 52 Press against the outer wall of the wire tube 20, and a stable clamping force is provided by the hoop, and then manually rotate the force-applying crank 3 to drive the installation sleeve 2 and the cutting member 5 to rotate synchronously, and the cutting teeth 53 perform a circular cut on the wire tube 20. , the cutting efficiency is faster; and after the cutting teeth 53 cut to a certain depth, the worm-driven hose hoop can be tightened twice, so as to ensure the cutting effect and avoid the excessive pressure of the cutting teeth 53 on the wire tube 20. The cutting teeth 53 are protected.

The maximum diameter of the electrical conduit 20 is 37 mm, so the side length of the installation shell 1 can be set to 100 mm, so that the overall volume of the installation shell 1 is small and convenient for staff to carry and transfer. The installation sleeve 2 is arranged through the installation shell 1, so that the wire tube 20 can pass through the installation shell 1 directly through the installation sleeve 2, so as to avoid that the wire tube cutting position cannot be aligned with the cutting member 5 due to the excessive length of the wire tube 20, so as to ensure The pipe cutter performs the pipe cutting operation normally.

This specific embodiment is only an explanation of the present invention, and it does not limit the present invention. Those skilled in the art can make modifications without creative contribution to the present embodiment as required after reading this specification, but as long as the rights of the present invention are used All claims are protected by patent law.

Claims (10)

1. A pipe cutter for wire pipe cutting, characterized in that it comprises a mounting shell (1) with a cavity inside, a mounting sleeve (2) rotatably mounted on the mounting shell (1), A force application member on the installation shell (1), a transmission member (4) located in the installation casing (1) for drivingly connecting the installation sleeve (2) and the force application member, and a cutting member installed on the installation sleeve (2) A piece (5), the cutting piece (5) comprises a collar (51) fixed on one end of the installation sleeve (2) away from the transmission piece (4), and elastic clips are evenly arranged on the collar (51) The side of the elastic clip (52) facing the axis of the collar (51) is fixed with cutting teeth (53), and the outer side of the elastic clip (52) is provided with all the elastic clips ( 52) An integrally tightened fastener (6). 2. The pipe cutter for wire pipe cutting according to claim 1, wherein the transmission member (4) comprises a first bevel gear (41) and a second bevel gear (42) that mesh with each other, The first bevel gear (41) is coaxially fixed to the installation sleeve (2), and the second bevel gear (42) is coaxially fixed to the force applying member. 3 . The pipe cutter for wire pipe cutting according to claim 1 , wherein the collar ( 51 ) is detachably connected to the installation sleeve ( 2 ). 4 . 4 . The pipe cutter for wire pipe cutting according to claim 1 , wherein the fixing member ( 6 ) is selected as a worm drive type hose hoop. 5 . 5. The pipe cutter for wire pipe cutting according to claim 1, characterized in that: a pipe holder (7) for fixing the wire pipe (20) to be cut is fixed outside the mounting shell (1). The pipe holder (7) includes a vertical support (71), a lower arc-shaped plate (72) fixed on the top of the support (71), and an upper arc-shaped plate (72) buckled on the lower arc-shaped plate (72). A plate (73), between the lower arc plate (72) and the upper arc plate (73), a fixing assembly (8) for pressing and fixing the upper arc plate (73) is arranged. 6. The pipe cutter for wire pipe cutting according to claim 5, wherein the fixing assembly (8) comprises a connecting bolt (81) and a thread hinged on the side wall of the lower arc plate (72) A clamping block (82) connected to the free end of the connecting bolt (81), the outer edge of the upper arc plate (73) is provided with a clamping groove (731) adapted to the connecting bolt (81). 7. The pipe cutter for wire pipe cutting according to claim 5, wherein the support member (71) comprises a support sleeve (711) arranged vertically and a support sleeve (711) slidably arranged on the support sleeve (711). ) inside the support rod (712), the support sleeve (711) is provided with a limiting member (9) that restricts the sliding of the support rod (712). 8 . The pipe cutter for wire pipe cutting according to claim 7 , wherein the limiting member ( 9 ) comprises a transmission shaft ( 91 ) horizontally penetrated on the support sleeve ( 711 ), 9 . One end of the transmission shaft (91) is located inside the support sleeve (711), and the other end is located outside the support sleeve (711). ), the support rod (712) is provided with a rack (93), the limit gear (92) is meshed with the rack (93), and the tooth surface width of the limit gear (92) is smaller than that of the rack The tooth surface width of (93); the end of the transmission shaft (91) located outside the sleeve is fixed with a hand wheel (94), the transmission shaft (91), the hand wheel (94) and the support sleeve (711) A fixing block (95) is fixedly connected between the outer walls, and a countersunk hole (713) adapted to the fixing block (95) is opened on the outer wall of the support sleeve (711). 9 . The pipe cutter for wire pipe cutting according to claim 8 , wherein the shape of the fixing block ( 95 ) is gear-shaped. 10 . 10. The pipe cutter for wire pipe cutting according to claim 7, wherein two guide rods (714) are vertically arranged on the support rod (712), and the guide rods (714) Located on both sides of the rack (93), the support sleeve (711) is provided with a chute.

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