TWI617407B - Pipe cutting device - Google Patents

Abstract

The invention relates to a pipe cutter comprising a body, a sliding seat, a knife seat, an elastic member and a screw. The seat body is provided with an abutting top. The sliding seat is slidably disposed in the receiving body. The sliding seat includes a receiving slot, a first sliding portion and a second sliding portion. The second sliding portion is disposed in the receiving slot. The knife holder is provided with a cutter and is slidably disposed on the slider. The elastic member is disposed in the accommodating groove to normally abut the blade seat toward the top. The screw is disposed between the seat body, the seat and the sliding seat, and is screwed to one of the seat body or the sliding seat.

Description

Pipe cutter

The present invention relates to hand tools, and more particularly to a pipe cutter.

Press, when the general maintenance master or decorator is at the job site, he will carry all the pipe tools with him to carry out the work of cutting the metal pipe fittings. The conventional pipe cutter includes one fixed seat and one knife seat, and is worn by a screw. It is arranged on the tool holder, and by rotating the screw, the knife seat can be controlled to cut the pipe fitting. However, when the conventional pipe cutter performs the cutting pin, when the tool of the tool holder cuts the outer diameter of the pipe member, the user must re-rotate the screw to re-tighten the tool against the pipe member. The cutting can be continued, so that when the pipe is actually cut, it is necessary to repeat this step several times, which makes the process of cutting the pipe parts time-consuming and labor-intensive, and there is a drawback that needs to be improved.

Therefore, it is necessary to provide a novel and progressive pipe cutter to solve the above problems.

The main object of the present invention is to provide a pipe cutter which has an automatic feeding function, and the user does not need to rotate the screw all the time during the cutting operation, and the tool holder can automatically feed the knife to continuously cut the pipe.

In order to achieve the above object, the present invention provides a pipe cutter comprising a body, a carriage, a holder, an elastic member and a screw. The seat body is provided with an abutting top. The sliding seat is slidably disposed on the seat body. The sliding seat includes a receiving slot, a first sliding portion and a second sliding portion. The second sliding portion is disposed in the receiving slot. The tool holder is disposed on a side of the abutting top, and the tool holder is provided with a third sliding portion, a fourth sliding portion and an extending portion. The fourth sliding portion is disposed on the extending portion. The extension portion is disposed in the accommodating groove, and the first sliding portion is slidably coupled to the third sliding portion, and the second sliding portion is slidably coupled to the fourth sliding portion. The elastic member abuts between the groove wall of the accommodating groove and the extending portion to normally slide the blade seat against the top portion. The screw is disposed between the base body, the extension portion and the sliding seat, and is screwed to one of the seat body or the sliding seat.

1‧‧‧ body

2‧‧‧Slide

3‧‧‧ knife holder

4‧‧‧ screw

6‧‧‧Tools

9‧‧‧ Pipe fittings

11‧‧‧ arrive at the top

212‧‧‧stops

241‧‧‧Second concave and convex structure

251‧‧‧Threaded section

252‧‧‧First concave structure

31‧‧‧Extension

32‧‧‧The third sliding department

33‧‧‧Fourth sliding department

111‧‧‧Roller

112‧‧‧ pivot

21‧‧‧ accommodating slots

22‧‧‧First Sliding Department

23‧‧‧Second Sliding Department

24‧‧‧through holes

25‧‧‧Connecting parts

211‧‧ ‧ chute

41‧‧‧ Holding parts

411‧‧‧ 容口

51‧‧‧Flexible parts

52‧‧‧ shaft parts

53‧‧‧C type buckle

521‧‧‧ Groove

61‧‧‧ Inner Ring Wall

62‧‧‧ bearing

71‧‧‧ plane

1 is a perspective view of a preferred embodiment of the present invention.

2 is an exploded view of a preferred embodiment of the present invention.

Figure 3 is another exploded view of a preferred embodiment of the present invention.

4 to 6 are schematic views showing the operation of a preferred embodiment of the present invention.

The following is a description of the possible embodiments of the present invention, and is not intended to limit the scope of the invention as claimed.

Referring to Figures 1 through 6, there is shown a preferred embodiment of the present invention. The pipe cutter of the present invention comprises a body 1, a carriage 2, a holder 3, an elastic member 51 and a screw 4.

The base body 1 is provided with an abutting top portion 11. In this embodiment, the abutting top portion 11 includes two rollers 111, and the two rollers 111 are respectively disposed through a pivot 112.

The sliding seat 2 is slidably disposed on the base body 1 , and the sliding seat 2 includes a receiving slot 21 , a first sliding portion 22 , and a second sliding portion 23 . The second sliding portion 23 is disposed on the sliding portion 2 . It is accommodated in the groove 21.

A tool 6 is disposed on a side of the tool holder 3 facing the top of the abutting portion 11. The tool holder 3 is provided with a third sliding portion 32, a fourth sliding portion 33 and an extending portion 31. The fourth sliding portion is provided. The slidable portion 31 is disposed in the accommodating portion 31, and the first sliding portion 22 is slidably coupled to the third sliding portion 32. The second sliding portion is slidably connected to the third sliding portion 32. The portion 23 is slidably coupled to the fourth sliding portion 33. In the embodiment, the cutter 6 is in the shape of a ring. The cutter 6 is provided with an inner ring wall 61. The inner ring wall 61 is provided with a bearing 62. A shaft member 52 is disposed through the bearing 62 and the seat 3. Between the side walls, the tool 6 is rotatably disposed on the seat 3.

The elastic member 51 abuts between the groove wall of the accommodating groove 21 and the extending portion 31 to normally slide the blade holder 3 in the direction of the abutting portion 11 to slide.

The screw 4 is disposed between the base body 1 , the extension portion 31 and the sliding seat 2 , and is screwed to one of the seat body 1 or the sliding seat 2 .

In actual use, when the screw 4 is rotated, the screw 4 will move the slider 2 to move in the direction of the abutting top 11 (as shown in FIG. 4), and the seat 3 will also be driven by the sliding seat 2. When the cutter 6 is abutted against a pipe member 9, when the screw 4 is continuously rotated, the carriage 2 will continue to slide in the direction of the abutting top 11, and the seat 3 cannot be abutted due to the abutment of the pipe member 9. Relative to the movement of the abutting top 11, the seat 3 and the sliding seat 2 are relatively slipped and the elastic member 51 is pushed and compressed by the extending portion 31 (as shown in FIG. 5). Rotating the cutter 6 relative to the pipe member 9 can cut the pipe member 9. Since the elastic member 51 normally slides the blade holder 3 toward the abutting top portion 11, the cutter 6 is cut. When the pipe member 9 is inserted, the user does not need to rotate the screw 4 to continue feeding the tool 6, and the seat 3 automatically moves toward the top portion 11 (as shown in FIG. 6). The tube 9 can be continuously supported to continuously cut the pin to achieve the function of automatic feeding.

Specifically, in the embodiment, the first sliding portion 22 is disposed at one end of the sliding seat 2 facing the seat 3, and the third sliding portion 32 is disposed on the seat 3 facing the sliding seat 2 One end, wherein the first sliding portion 22 is a dovetail block and the third sliding portion 32 is a dovetail slot that is slidably connected to the dovetail block, the dovetail slot and the dovetail block each have a plane 71, the two planes The 71 series is attached, and in other embodiments the tail piece and the The positions of the dovetail grooves may be replaced with each other. In addition, in the embodiment, the extending portion 31 extends from the bottom end of the seat 3 toward the abutting portion 11 and is bent in the direction of the sliding seat 2 in an L shape, and the fourth sliding portion 33 is The second sliding portion 23 is disposed on the two sides of the extending portion 31. In the embodiment, the second sliding portion 23 is a two-rail, the fourth sliding portion. The mounting portion 33 is a bump that is respectively slidably connected to the two rails. In other embodiments, the positions of the two rails and the two bumps are mutually replaced. The first sliding portion 22 is slidably coupled to the third sliding portion 32 and the second sliding portion 23 is slidably coupled to the fourth sliding portion 33, so that the seat 3 can be slid relative to the sliding portion When the seat 2 slides, the inclined force is evenly distributed to the third sliding portion 32 and the fourth sliding portion 33, so that the seat 3 is more stable and less swayable when it slides relative to the sliding seat 2.

Preferably, the sliding seat 2 is provided with a through hole 24 and a connecting member 25, and the connecting member 25 is received in the through hole 24. The connecting member 25 is provided with an internal thread segment 251, the screw 4 The threaded portion 251 is threaded into the threaded hole 24, and the internal thread segment 251 is screwed to the screw 4. When the screw 4 rotates, the connecting member 25 is driven to move along the axial direction of the screw 4. The connecting member 25 That is, the sliding seat 2 is slid along with the connecting member 25, so that the sliding seat 2 does not need to be provided with the thread corresponding to the screw 4, and only the connecting member 25 needs to be added. Since the slider 2 is smoothly slid by the screw 4, the processing cost of the slider 2 can be greatly reduced. Further, the outer surface of the connecting member 25 is provided with a plurality of first concave-convex structures 252, and the hole walls of the through holes 24 are provided with a second concave-convex structure 241 corresponding to the first concave-convex structure 252, and the connecting member 25 is The first concave-convex structure 252 and the second concave-convex structure 241 can effectively prevent the connecting member 25 from rotating relative to the sliding seat 2 so that the screw 4 is further tightly disposed. The slider 2 and the connecting member 25 are smoothly moved.

Further, a sliding slot 211 is defined in the bottom of the receiving slot 21, and a stopping member 212 is disposed on the extending portion 31 and slidably disposed in the sliding slot 211 to limit the sliding block 3 and the sliding portion The relative sliding distance of the seat 2 prevents the distance between the seat 3 and the sliding seat 2 from being excessively slipped and separated.

In the embodiment, the shaft member 52 is provided with a groove 521 for fastening a C-shaped buckle 53 to limit the shaft member 52 to the seat 3. The C-shaped buckle can be used. Quick disassembly to provide quick Quickly replace the function of the tool 6. Preferably, the screw 4 is disposed at a distal end of the sliding seat 2 and is provided with a holding member 41. The holding member 41 is convenient for the user to hold the holding member 41 to rotate the screw 4. The holding member 41 has a receiving port 411, the receiving port 411 is provided with a spare tool 6 and a spare bearing 62. One end of the screw 4 is connected to the spare tool 6 and the spare bearing 62 for convenient storage. After the cutter 6 and the bearing 62 of the tool holder 6 are worn, the tool 6 and the spare bearing 62 provided in the accommodating port 411 can be removed and replaced.

In summary, in the pipe cutter of the present invention, since the elastic member normally pushes the blade seat toward the top of the abutting portion, when the cutter is cut into the pipe member, the user does not need to rotate the blade. The screw continues to feed the tool, and the seat automatically moves toward the top of the tool. The tool can continue to abut the pipe to continuously cut the pin to achieve the function of automatic feed.

And sliding the blade seat relative to the sliding portion by sliding the first sliding portion with the third sliding portion and sliding the second sliding portion with the fourth sliding portion When the tilting force is evenly distributed to the third sliding portion and the fourth sliding portion, the seat is more stable and less swayable when sliding relative to the sliding seat.

Claims (10)

A pipe cutter includes: a body having a top portion; a sliding seat disposed on the seat body, the sliding seat including a receiving groove, a first sliding portion and a second sliding portion, The second sliding portion is disposed in the receiving groove; a knife seat is disposed on a side of the abutting top, and the tool holder is provided with a third sliding portion, a fourth sliding portion and an extending portion The fourth sliding portion is disposed in the extending portion, and the extending portion is disposed in the receiving groove, and the first sliding portion is slidably coupled to the third sliding portion, the second sliding portion The sliding portion is slidably coupled to the fourth sliding portion; an elastic member abuts between the groove wall of the receiving groove and the extending portion, and normally pushes the seat toward the top portion a screw that is disposed between the base body, the extension portion, and the sliding seat, and is screwed to one of the seat body or the sliding seat; wherein the first sliding portion and the first sliding portion One of the third sliding portions is a dovetail groove, and the other is a dovetail block that is slidably connected to the dovetail groove. The dovetail groove and the dovetail block each have a plane, and the two planes are attached. The pipe cutter according to claim 1, wherein the sliding seat is provided with a through hole and a connecting member, the connecting member is received in the through hole, and the connecting member is provided with an internal thread segment, the screw The threaded portion is threaded into the through hole and the internal thread segment is screwed to the screw. The pipe cutter according to claim 2, wherein the outer surface of the connecting member is provided with a plurality of first concave-convex structures, and the hole wall of the through hole is provided with a second concave-convex structure corresponding to the first concave-convex structure, the connection The piece is tightly fitted in the through hole. The pipe cutter of claim 1, wherein a slot is formed in a bottom of the receiving slot, and a stopping member is disposed on the extending portion and slidably disposed in the sliding slot. The cutter according to claim 1, wherein the cutter is in the shape of a ring, the cutter is provided with an inner ring wall, the inner ring wall is provided with a bearing, and a shaft member is disposed on both sides of the bearing and the seat between. The pipe cutter of claim 5, wherein the shaft member ring is provided with a recess for a C-type buckle to limit the shaft member to the seat. The pipe cutter of claim 5, wherein the screw is provided with a holding member away from one end of the sliding block, the holding member has a receiving port, and the receiving port is provided with a spare tool and a spare And a bearing of the screw is connected to the spare tool and the spare bearing. The pipe cutter according to claim 1, wherein the extension portion extends from a bottom end of the holder toward the top of the holder and is bent in an L-shape toward the slider, the fourth sliding portion being The second sliding portion is disposed on two sides of the extending slot. The pipe cutter according to claim 1, wherein the first sliding portion is disposed at one end of the sliding seat facing the seat, and the third sliding portion is disposed at the one end of the sliding seat facing the sliding seat. The pipe cutter of claim 1, wherein the abutting top comprises two rollers, the two rollers are respectively provided for a pivot; the sliding seat is provided with a through hole and a connecting member, and the connecting member is received In the through hole, the connecting member is provided with an internal threaded portion, the screw thread is inserted into the through hole and the internal threaded portion is screwed with the screw; the outer surface of the connecting member is provided with a plurality of a first concave-convex structure, the hole wall of the through hole is provided with a second concave-convex structure corresponding to the first concave-convex structure, and the connecting member is tightly disposed in the through-hole; the bottom of the receiving groove is opened a sliding groove, a stopping member is disposed on the extending portion and slidably disposed in the sliding groove; the cutter is in the shape of a ring, the cutter is provided with an inner ring wall, the inner ring wall is provided with a bearing, and a shaft member is disposed Between the bearing and the two side walls of the seat; the shaft ring is provided with a groove for a C-type buckle to limit the shaft to the seat; the screw is away from the One end of the sliding seat is provided with a holding member, and the holding member has a receiving port, and the receiving port is provided with a spare tool and a spare bearing, one end of the screw is connected to the spare tool and the spare bearing; the extension extends from the bottom end of the seat toward the top and is bent in the direction of the slide Type, the fourth The sliding portion is disposed on two sides of the extending portion, the second sliding portion is disposed on two side walls of the receiving groove, and one of the second sliding portion and the fourth sliding portion is two guiding portions The other is a protrusion that is respectively slidably connected to the two rails; the first sliding portion is disposed at one end of the sliding seat facing the holder, and the third sliding portion is disposed on the holder facing the One end of the slide.