CN219445309U

CN219445309U - Pipe cutter of locating type tool changing

Info

Publication number: CN219445309U
Application number: CN202320155680.9U
Authority: CN
Inventors: 符铭杰
Original assignee: Zhejiang Bili Tools Co ltd
Current assignee: Zhejiang Bili Tools Co ltd
Priority date: 2023-02-08
Filing date: 2023-02-08
Publication date: 2023-08-01
Anticipated expiration: 2033-02-08

Abstract

The utility model provides a pipe cutter for positioning type cutter changing, which comprises a shell, wherein a blade is detachably arranged in the shell through a blade quick-changing mechanism, the blade quick-changing mechanism comprises a blade seat and a locking piece, the blade seat is rotatably arranged in the shell, the blade is connected with the blade seat through the locking piece, a first clamping hook is arranged on the blade, a second clamping hook matched with the first clamping hook is arranged on the locking piece, an arc-shaped sliding groove is arranged on the shell, and a guide column is arranged on the locking piece. According to the pipe cutter for positioning type cutter changing, the blade seat and the blade are connected together through the locking piece in the clamping hook matching mode, the blade can be disassembled after being unlocked through the matching of the guide post and the sliding groove, the blade can be directly pulled out after the blade is opened to the maximum angle in the mode, the disassembly is more convenient and quick, the blade limiting wheel plays a role of a locking switch, and the blade can be opened to the maximum angle only when the blade limiting wheel rotates to a certain angle.

Description

Pipe cutter of locating type tool changing

Technical Field

The utility model relates to the technical field of pipe cutters, in particular to a pipe cutter with a positioning type cutter changing function.

Background

The pipe cutter is one of the tools frequently used in piping engineering, and is mainly used for cutting and sectioning a pipe body and connecting pipelines such as electricity, water, gas and the like. The conventional pipe cutter structure is mostly provided with two handles which can be mutually abutted, wherein the top end of one handle is provided with a blade, the top end of the other handle is provided with an arc-shaped clamping opening, and a connecting rod, a ratchet piece and a ratchet block are arranged between the two handles. When a user presses the handles, the two handles are oppositely abutted by the meshing action between the ratchet sheet body and the ratchet block and the linkage action of the connecting rod so as to drive the cutter to cut the pipe body; the patent of application number CN201521082696.3 discloses a pipe cutter, including main handle (1), auxiliary handle (2), movable jaw (3), fixed jaw (4), stopping pawl (5) and propulsion pawl (6), main handle (1) and fixed jaw (4) as an organic whole, movable jaw (3) with main handle (1) are held through the screw and are linked to each other, auxiliary handle (2) bottom set up a safety collar (21), auxiliary handle (2) set up aperture (22) and No. two aperture (23), aperture (22) link to each other with fixed jaw (4) and stopping pawl (5) through the rivet, no. two aperture (23) link to each other with propulsion pawl (6) through the rivet, propulsion pawl (6) are provided with the torsional spring with No. two aperture (23) junction. Springs (7) are arranged on two corresponding side surfaces of the movable jaw (3), and the springs (7) are connected with the backstop pawls (5). The blade inside the pipe cutter shell is positioned and installed through the screws and the nuts at the two sides of the shell, and when the blade is replaced, the screws can be pulled out only by screwing the nuts off by using a spanner, so that the tool replacement is inconvenient.

Disclosure of Invention

First, the technical problem to be solved

The utility model aims to solve the problem of providing a pipe cutter with a positioning type cutter changing function, so as to overcome the defect of inconvenient cutter changing of the pipe cutter in the prior art.

(II) technical scheme

In order to solve the technical problems, the utility model provides a pipe cutter for positioning type cutter changing, which comprises a shell, wherein a blade is detachably arranged in the shell through a blade quick-changing mechanism, the blade quick-changing mechanism comprises a blade seat and a locking piece, the blade seat is rotatably arranged in the shell, the blade is connected with the blade seat through the locking piece, the blade is synchronously driven to move when rotating, a first clamping hook is arranged on the blade, a second clamping hook matched with the first clamping hook is arranged on the locking piece, an arc-shaped sliding groove is arranged on the shell, and a guide column is arranged on the locking piece; when the blade is opened to a maximum angle, the guide post slides to the top end along the sliding groove, the locking piece rotates along with the guide post, the second clamping hook is separated from the first clamping hook, and the blade can be taken out of the blade seat.

Further, a blade limiting wheel is rotatably arranged in the shell, the blade limiting wheel is semicircular, an arc-shaped concave surface is arranged on the blade, and the arc-shaped concave surface is matched with the arc-shaped surface of the blade limiting wheel; be equipped with anti-skidding portion on the arc surface of the spacing round of blade, anti-skidding portion exposes the casing, through anti-skidding portion can stir the spacing round of blade, works as the arc concave surface with when the arc surface is laminated, the blade is spacing, can't open downwards, at this moment the second pothook can't break away from first pothook, the blade can't be dismantled, rotatory anti-skidding portion makes the plane of the spacing round of blade with the blade corresponds, at this moment the blade can continue to open downwards, makes the second pothook break away from first pothook, can with the blade pulls out the dismantlement at this moment.

Further, the blade seat is provided with a mounting groove with a circular opening, the end part of the locking piece is a cylinder, and the locking piece is rotatably inserted into the mounting groove.

Furthermore, the blade seat is also provided with a slot, and the connecting end of the blade is inserted into the slot in a matching way; an avoidance groove is formed in the connecting end, and the second clamping hook is arranged in the avoidance groove and matched with the first clamping hook.

Further, a spring groove is formed in the locking piece, a reset spring is arranged in the spring groove, and one end of the reset spring abuts against the blade seat.

Furthermore, one end of the sliding groove is obliquely upwards provided with a guide part, and the locking piece is driven to deviate through the cooperation of the guide part and the guide column.

Further, a movable handle is further installed on the shell, a ratchet is arranged on one side of the blade seat, the movable handle drives the blade seat to rotate through the ratchet, a large pawl and a small pawl are installed on the movable handle, the small pawl and the large pawl are matched with the ratchet, the movable handle drives the large pawl to drive the blade seat to rotate, and the small pawl is used for preventing the blade seat from retreating, so that multistage cutting is achieved.

(III) beneficial effects

According to the pipe cutter for positioning type cutter changing, the blade seat and the blade are connected together through the locking piece in the clamping hook matching mode, the blade can be disassembled after being unlocked through the matching of the guide post and the sliding groove, the blade can be directly pulled out after the blade is opened to the maximum angle in the mode, the disassembly is more convenient and quick, the blade limiting wheel plays a role of a locking switch, and the blade can be opened to the maximum angle only when the blade limiting wheel rotates to a certain angle, so that the pipe cutter has a safety protection effect.

Drawings

FIG. 1 is a cross-sectional view showing a locked state of a blade of a pipe cutter for positioning a cutter change according to the present utility model;

FIG. 2 is a cross-sectional view showing an unlocked state of a blade of a pipe cutter for positioning a cutter change according to the present utility model;

FIG. 3 is an exploded view showing the internal structure of a tube cutter for a positioning type tool changer according to the present utility model;

FIG. 4 is a diagram showing a structure of a locking state of a blade seat and a blade of a pipe cutter for positioning type cutter changing according to the present utility model;

FIG. 5 is a view showing the structure of the unlocking state of the blade seat and the blade of the pipe cutter for positioning type cutter changing;

FIG. 6 is a schematic view showing the internal structure of a pipe cutter with a positioning type cutter changing function according to the present utility model;

FIG. 7 is a perspective view of a blade holder of a tube cutter for locating a tool change according to the present utility model;

FIG. 8 is a perspective view of a blade of a tube cutter with a fixed position knife change in accordance with the present utility model;

FIG. 9 is a perspective view of a locking member of a tube cutter for a fixed-position tool changer according to the present utility model;

fig. 10 is a perspective view of a blade limit wheel of a pipe cutter for locating type tool changing according to the present utility model.

The corresponding component names for each reference number in the figures are: 1. a housing; 2. a blade seat; 3. a locking member; 4. a blade; 5. a first hook; 6. a second hook; 7. a sliding groove; 8. a guide post; 9. a blade limit wheel; 10. an arc-shaped concave surface; 11. an anti-slip part; 12. a mounting groove; 13. a slot; 14. a connection end; 15. an avoidance groove; 16. a spring groove; 17. a return spring; 18. a guide part; 19. a movable handle; 20. a ratchet; 21. a large pawl; 22. a small pawl.

Detailed Description

The following describes in further detail the embodiments of the present utility model with reference to the drawings and examples. The following examples are illustrative of the utility model and are not intended to limit the scope of the utility model.

Referring to fig. 1 to 10, the utility model provides a pipe cutter for positioning type cutter changing, which comprises a shell 1, wherein a blade 4 is detachably arranged in the shell 1 through a blade quick-changing mechanism, the blade quick-changing mechanism comprises a blade seat 2 and a locking piece 3, wherein the blade seat 2 is rotatably arranged in the shell 1 and is used for driving the blade 4 to open and close, the blade 4 is connected with the blade seat 2 through the locking piece 3, so that the blade 4 can synchronously move with the blade seat 2, a first clamping hook 5 is arranged on the blade 4, a second clamping hook 6 matched with the first clamping hook 5 is arranged on the locking piece 3, the blade 4 is matched with the second clamping hook 6 through the first clamping hook 5, so that the blade seat 2 is bound, an arc-shaped sliding groove 7 is arranged on the shell 1, a guide post 8 is arranged on the locking piece 3, and the guide post 8 can slide along the sliding groove 7, and therefore, when the blade 4 is opened and closed, the locking piece 3 can be driven to shift through the guide post 8; when the blade 4 is opened to the maximum angle, the guide post 8 slides to the top end along the sliding groove 7, the locking piece 3 rotates along with the guide post, and then the second clamping hook 6 is separated from the first clamping hook 5, so that the blade 4 can be taken out from the blade seat 2; specifically, the blade limiting wheel 9 is rotatably installed in the shell 1, the blade limiting wheel 9 is semicircular, the arc-shaped concave surface 10 is arranged on the blade 4, the arc-shaped concave surface 10 is matched with the arc-shaped surface of the blade limiting wheel 9, the anti-skid part 11 is arranged on the arc-shaped surface of the blade limiting wheel 9, the anti-skid part 11 is exposed out of the shell 1, the blade limiting wheel 9 can be stirred through the anti-skid part 11, when the arc-shaped surface of the blade limiting wheel 9 is matched with the arc-shaped concave surface 10, the blade 4 is locked and cannot be continuously opened, the guide post 8 cannot drive the locking piece 3 to move, at the moment, the first clamping hook 5 is locked with the second clamping hook 6, and the blade 4 cannot be disassembled; when the arc-shaped concave surface 10 is attached to the plane of the blade limiting wheel 9, the blade 4 can be continuously opened, at the moment, the guide post 8 drives the locking piece 3 to rotate, then the second clamping hook 6 is separated from the first clamping hook 5, at the moment, the blade 4 is unlocked, the blade 4 can be taken out in a detachable mode, in the embodiment, one end of the sliding groove 7 is obliquely upwards provided with the guide part 18, and the guide part is used for guiding the guide post 8 to move upwards and then drives the locking piece 3 to rotate.

Referring to fig. 4 to 9, in the present embodiment, a circular opening mounting groove 12 is provided on the blade seat 2, the end of the locking member 3 is a cylinder, and is rotatably inserted into the mounting groove 12, a slot 13 is further provided on the blade seat 2, and a connection end 14 of the blade 4 is inserted into the slot 13 in a matching manner, and in an unlocked state, the connection end 14 can be separated from the slot 13 by directly pulling out the blade 4; the connecting end 14 is internally provided with an avoidance groove 15, the second clamping hook 6 is arranged in the avoidance groove 15 to be matched with the first clamping hook 5, the locking piece 3 is provided with a spring groove 16, a return spring 17 is arranged in the spring groove 16, one end of the return spring 17 is abutted against the blade seat 2, the return spring 17 presses the locking piece 3 under the normal state to ensure that the second clamping hook 6 is always locked with the first clamping hook 5, and meanwhile, the locking piece 3 can be pushed to be continuously locked after unlocking; in the embodiment, a movable handle 19 is also arranged on the shell 1, one side of the blade seat 2 is provided with a ratchet 20, and the movable handle 19 drives the blade seat 2 to rotate through the ratchet 20; the movable handle 19 is provided with a large pawl 21 and a small pawl 22, the small pawl 22 and the large pawl 21 are matched with the ratchet 20, the movable handle 19 drives the large pawl 21 to drive the blade seat 2 to rotate, and the small pawl 22 is used for preventing the blade seat 2 from retreating, so that multistage cutting is realized.

The foregoing is merely a preferred embodiment of the present utility model, and it should be noted that it will be apparent to those skilled in the art that several modifications and variations can be made without departing from the technical principle of the present utility model, and these modifications and variations should also be regarded as the scope of the utility model.

Claims

1. The utility model provides a pipe cutter of locate mode tool changing, includes casing (1), install blade (4) through blade quick change mechanism demountable installation in casing (1), its characterized in that: the blade quick-change mechanism comprises a blade seat (2) and a locking piece (3), wherein the blade seat (2) is rotatably installed in the shell (1), the blade (4) is connected with the blade seat (2) through the locking piece (3), a first clamping hook (5) is arranged on the blade (4), a second clamping hook (6) matched with the first clamping hook (5) is arranged on the locking piece (3), a sliding groove (7) is formed in the shell (1), and a guide column (8) is arranged on the locking piece (3); when the blade (4) is opened to a maximum angle, the guide post (8) slides to the top end along the sliding groove (7), the locking piece (3) rotates along with the guide post, the second clamping hook (6) is separated from the first clamping hook (5), and the blade (4) can be taken out from the blade seat (2) at the moment.

2. The tube cutter of the positioning type cutter changing device as claimed in claim 1, wherein: the novel cutting blade is characterized in that the blade limiting wheel (9) is rotatably mounted in the shell (1), the blade limiting wheel (9) is semicircular, an arc-shaped concave surface (10) is arranged on the blade (4), and the arc-shaped concave surface (10) is matched with the arc-shaped surface of the blade limiting wheel (9).

3. The tube cutter of the positioning type cutter changing device as claimed in claim 2, wherein: an anti-slip part (11) is arranged on the arc surface of the blade limiting wheel (9), and the anti-slip part (11) is exposed out of the shell (1).

4. The tube cutter of the positioning type cutter changing device as claimed in claim 1, wherein: the blade seat (2) is provided with a circular opening mounting groove (12), the end part of the locking piece (3) is a cylinder, and the locking piece is rotatably inserted into the mounting groove (12).

5. The tube cutter of the positioning type cutter changing device as claimed in claim 1, wherein: the blade seat (2) is also provided with a slot (13), and the connecting end (14) of the blade (4) is inserted into the slot (13) in a matching way.

6. The tube cutter of the positioning type cutter changing device according to claim 5, wherein: an avoidance groove (15) is formed in the connecting end (14), and the second clamping hook (6) is arranged in the avoidance groove (15) and matched with the first clamping hook (5).

7. The tube cutter of the positioning type cutter changing device as claimed in claim 1, wherein: the locking piece (3) is provided with a spring groove (16), a return spring (17) is arranged in the spring groove (16), and one end of the return spring (17) is abutted against the blade seat (2).

8. The tube cutter of the positioning type cutter changing device as claimed in claim 1, wherein: one end of the sliding groove (7) is obliquely upwards provided with a guide part (18).

9. The tube cutter of the positioning type cutter changing device as claimed in claim 1, wherein: the movable handle (19) is further arranged on the shell (1), a ratchet (20) is arranged on one side of the blade seat (2), and the movable handle (19) drives the blade seat (2) to rotate through the ratchet (20).

10. The tube cutter of the positioning type cutter changing device as claimed in claim 9, wherein: the movable handle (19) is provided with a large pawl (21) and a small pawl (22), and the small pawl (22) and the large pawl (21) are matched with the ratchet (20).