Pipe cutter capable of cutting in surrounding mode

Abstract

The pipe cutter comprises a first handle and a second handle which are hinged to each other, arc-shaped positioning grooves are formed in the inner sides of the ends of the first handle and the second handle, the positioning grooves are used for positioning pipe fittings, a blade is inserted into the side wall of the positioning groove of the first handle, a driving piece is installed at the hinged position of the first handle and the second handle, and the driving piece is used for driving the first handle and the second handle to rotate. The driving piece drives the positioning grooves in the first handle and the second handle to be folded so that the blade can be attached to the pipe fitting, the first handle and the second handle are rotated with the pipe fitting as the circle center, and the blade can cut the pipe fitting by surrounding the pipe fitting by a circle. According to the pipe cutter capable of cutting in the surrounding mode, the driving piece can push the positioning grooves in the end portions of the first handle and the second handle to be folded, so that a pipe fitting and the blade are clamped through the arc-shaped positioning grooves, the pipe fitting can be cut off in the mode that the end portions of the handles are rotated, notches of the pipe fitting machined through the pipe cutter are even and flat, and the cutting efficiency is improved. And the follow-up using effect of the pipe fitting is better, and the handle does not need to be pressed repeatedly for cutting.

Description

Technical Field

[0001] The utility model relates to the technical field of pipe cutters, in particular to a pipe cutter for circumferential cutting. Background Art

[0002] The pipe cutter is usually used to cut hoses. The application number is 201510735451.4. A pipe cutter solves the problem that the existing pipe cutter adopts a structure of external meshing at the root of the blade, which causes the blade size to not be maximized and is still relatively laborious when cutting. It includes a fixed handle and a movable handle that are hinged to each other. The fixed handle is provided with a pipe groove and a blade corresponding to the pipe groove is hinged. The blade is provided with an arc groove coaxial with the blade shaft, and a plurality of internal teeth are provided in the arc groove. A shaft is hinged at a position between the internal teeth on the fixed handle and the hinged part of the blade. A gear is provided on the shaft, and the gear meshes with the internal teeth. A gear driving component is provided on the movable handle. The arc groove is provided with a plurality of internal teeth, so that the shaft of the gear can be set between the internal teeth and the hinged part of the blade. The blade size can be maximized without reducing the blade size, and the transmitted cutting force can be increased. At the same time, the overall size of the pipe cutter can be reduced, and it is easy to carry. The pipe cutter needs to be cut by a movable handle, which is laborious to use and the cut pipe end is not smooth enough, which affects the use of pipe fittings. Utility Model Content

[0003] 1. Technical issues to be resolved

[0004] The problem to be solved by the utility model is to provide a pipe cutter for circumferential cutting, so as to overcome the defects of the pipe cutter in the prior art that the pipe cutter is laborious to use and the cutting is uneven.

[0005] (II) Technical solution

[0006] In order to solve the technical problem, the utility model provides a circumferential cutting pipe cutter, comprising a first handle and a second handle hinged to each other, the first handle and the second handle are symmetrically arranged, one end of the first handle and the second handle is a semicircular operating end, and the other end is a hand-held part, wherein the inner side of the end of the operating end is provided with an arc-shaped positioning groove, the positioning groove is used to position the pipe fitting, a blade is inserted on the side wall of the positioning groove of the first handle, a driving member is installed at the hinge of the first handle and the second handle, the driving member drives the positioning grooves on the first handle and the second handle to close so that the blade fits the pipe fitting, and a direction indicating arrow is provided on the side wall of the operating end of the first handle and the second handle. The operating ends of the first handle and the second handle are rotated along the direction of the indicating arrow with the pipe fitting as the center, and the blade can circle around the pipe fitting to cut it.

[0007] In some embodiments, a mounting groove is provided on one side of the positioning groove of the first handle, a mounting seat is provided in the mounting groove, the blade is fixed between the mounting groove and the mounting seat, a slot is provided in the mounting seat, and the slot is used to place a spare blade. After removing the mounting seat, the blade can be taken out, and the spare blade can be taken out from the slot for replacement and installation.

[0008] In some embodiments, a guide hole is symmetrically provided on one side of the slot, a through hole corresponding to the center of the guide hole is provided on the mounting slot, a first bolt is provided in each of the guide holes, and the first bolt passes through the blade and the through hole.

[0009] In some embodiments, a cover plate is provided on the upper end surface of the mounting seat, and the shape of the cover plate is the same as that of the mounting groove and the mounting seat. The first handle is located on the other side of the through hole and is provided with a groove, and a first nut is fixed in the groove. A positioning hole corresponding to the center of the through hole is provided on the cover plate, and the first bolt is installed in the guide hole through the positioning hole, and the end of the first bolt passes through the through hole and cooperates with the first nut thread.

[0010] In some embodiments, the installation groove is provided with a first stop portion and a second stop portion at the opening of the positioning groove, and the two ends of the blade are respectively limited on the first stop portion and the second stop portion, and the two ends of the blade edge are also provided with inclined avoidance openings correspondingly, and the avoidance openings allow the blade edge of the blade to pass through the installation groove and be placed in the positioning groove.

[0011] In some embodiments, a first cylindrical hinge portion is disposed on the first handle, and a second hinge portion is correspondingly disposed on the second handle. The first hinge portion cooperates with the second hinge portion to achieve hinge connection through a second bolt and a second nut.

[0012] In some embodiments, a first insertion hole is provided on the first hinged portion, a second insertion hole is provided on the second hinged portion, the second nut is fixed in the second insertion hole, and the second bolt passes through the first insertion hole and cooperates with the second nut.

[0013] In some embodiments, the driving member is a torsion spring, which is mounted on the second bolt. The first handle and the second handle are respectively provided with a first support groove and a second support groove, and both ends of the torsion spring are respectively fixed in the first support groove and the second support groove.

[0014] In some embodiments, a protective plate is provided between the positioning grooves, a baffle is symmetrically provided in the middle of the protective plate, the blade is placed between the baffles, and a limiting portion is also provided on the protective plate, the limiting portion abuts against the end of the first handle, and the side end surfaces of the first handle and the second handle located in the positioning groove are both provided with anti-slip portions.

[0015] (III) Beneficial effects

[0016] The utility model provides a circumferential cutting pipe cutter, wherein a first handle is hingedly matched with a second handle, an internal driving member can push the positioning grooves at the ends of the first handle and the second handle to close together, so that the pipe and the blade are clamped by the arc-shaped positioning groove, and the pipe can be cut by rotating the handle ends. The pipe cutter has a uniform and smooth incision after processing the pipe, so that the subsequent use effect of the pipe is better, and there is no need to press the handle multiple times for cutting, which is more labor-saving. In addition, a detachable mounting seat is provided on the first handle, and a spare blade is stored inside, so that the blade can be stored and replaced. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 A three-dimensional diagram of a pipe cutter and a protective plate for surrounding cutting according to the utility model;

[0019] Figure 2 A three-dimensional diagram of a pipe cutter for circumferential cutting according to the utility model;

[0020] Figure 3 This is a three-dimensional diagram of the internal structure of the mounting base of a pipe cutter for circumferential cutting according to the utility model;

[0021] Figure 4 It is a three-dimensional diagram of a mounting base of a pipe cutter for circumferential cutting according to the utility model;

[0022] Figure 5 This is a three-dimensional view of the rear of the disassembly mounting seat of a pipe cutter for surrounding cutting according to the utility model;

[0023] Figure 6 This is a three-dimensional diagram of a first handle and a driving member of a pipe cutter for circumferential cutting according to the utility model;

[0024] Figure 7 This is a front perspective view of a first handle of a pipe cutter for encircling cutting according to the utility model;

[0025] Figure 8 This is a three-dimensional diagram of the second handle of a pipe cutter for circumferential cutting according to the utility model;

[0026] Fig. 9 A three-dimensional diagram of a cover plate of a pipe cutter for surrounding cutting according to the utility model;

[0027] Fig.10 The utility model is a three-dimensional diagram of a protective plate of a pipe cutter for surrounding cutting.

[0028] The names of the components corresponding to the various figure marks in the figure are: 1. first handle; 2. second handle; 3. positioning groove; 4. blade; 5. mounting groove; 6. mounting seat; 7. slot; 8. guide hole; 9. through hole; 10. first bolt; 11. cover plate; 12. groove; 13. first nut; 14. positioning hole; 15. first stopper; 16. second stopper; 17. escape; 18. first hinged part; 19. second hinged part; 20. second bolt; 21. second nut; 22. first plug hole; 23. second plug hole; 24. torsion spring; 25. first support groove; 26. second support groove; 27. protection plate; 28. baffle; 29. ​​limit part; 30. anti-slip part. DETAILED DESCRIPTION

[0029] The embodiments of the present application are described in detail below with reference to the accompanying drawings.

[0030] The following describes the implementation methods of the present application through specific examples, and those skilled in the art can easily understand other advantages and effects of the present application from the contents disclosed in this specification. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. The present application can also be implemented or applied through other different specific implementation methods, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present application. It should be noted that, in the absence of conflict, the following embodiments and the features in the embodiments can be combined with each other. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without making creative work belong to the scope of protection of the present application.

[0031] It should be noted that various aspects of the embodiments within the scope of the appended claims are described below. It should be apparent that the aspects described herein can be embodied in a wide variety of forms, and any specific structure and / or function described herein is merely illustrative. Based on the present application, it should be understood by those skilled in the art that an aspect described herein can be implemented independently of any other aspect, and two or more of these aspects can be combined in various ways. For example, any number and aspect described herein can be used to implement the device and / or practice the method. In addition, other structures and / or functionalities other than one or more of the aspects described herein can be used to implement this device and / or practice this method.

[0032] It should also be noted that the illustrations provided in the following embodiments are only schematic illustrations of the basic concept of the present application. The drawings only show components related to the present application rather than being drawn according to the number, shape and size of components in actual implementation. In actual implementation, the type, quantity and proportion of each component may be changed arbitrarily, and the component layout may also be more complicated.

[0033] Additionally, in the following description, specific details are provided to facilitate a thorough understanding of the examples. However, it will be understood by those skilled in the art that the examples can be practiced without these specific details.

[0034] See also Figures 1 to 10 The utility model provides a pipe cutting knife for surrounding cutting, comprising a first handle 1 and a second handle 2 hinged to each other, the first handle 1 and the second handle 2 are symmetrically arranged, one end of the first handle 1 and the second handle 2 is a semicircular operating end, and the other end is a hand-held part, wherein the inner side of the end of the operating end is provided with an arc-shaped positioning groove 3, the positioning groove 3 is used to position the pipe fitting, a blade 4 is inserted on the side wall of the positioning groove 3 of the first handle 1, a driving member is installed at the hinge of the first handle 1 and the second handle 2, the driving member drives the positioning groove 3 on the first handle 1 and the second handle 2 to close so that the blade 4 fits the pipe fitting, the side end surfaces of the first handle 1 and the second handle 2 located in the positioning groove 3 are provided with an anti-skid portion 30, the anti-skid portion 30 is arranged on the outer wall of the operating end, and plays an anti-skid role, the side walls of the operating ends of the first handle 1 and the second handle 2 are provided with a direction indicating arrow, and the operating ends of the first handle and the second handle are rotated along the direction of the indicating arrow with the pipe fitting as the center, and the blade 4 can cut the pipe fitting around a circle.

[0035] In some embodiments, Figure 3 to Figure 5As shown, a mounting groove 5 is provided on one side of the positioning groove 3 of the first handle 1, and a mounting seat 6 is provided in the mounting groove 5. The blade 4 is fixed between the mounting groove 5 and the mounting seat 6. Since the depth of the mounting groove 5 is half the thickness of the first handle 1, the blade 4 is arranged in the middle position of the positioning groove 3 after assembly. A slot 7 is provided in the mounting seat 6, and the slot 7 is used to place the spare blade 4. A guide hole 8 is symmetrically provided on one side of the slot 7. A through hole 9 corresponding to the center of the guide hole 8 is provided on the mounting groove 5, and a first bolt 10 is provided in the guide hole 8. The first bolt 10 passes through the blade 4 and the through hole 9, and the guide hole 8 is used to guide the first bolt 10 to pass through the through hole 9. Since the blade 4 is provided with a hole corresponding to the through hole 9, the blade 4 can be fixed in the horizontal direction by two first bolts 10, and then the blade 4 is completely fixed by pressing the mounting seat 6. The mounting seat 6 can be disassembled by removing the first bolt 10, and the spare blade 4 can be taken out from the slot 7 for tool replacement.

[0036] In some embodiments, Figure 6 to Figure 9 As shown, a cover plate 11 is provided on the upper end surface of the mounting seat 6, and the shape of the cover plate 11 is the same as that of the mounting groove 5 and the mounting seat 6. A groove 12 is provided on the other side of the first handle 1 located at the through hole 9, and a first nut 13 is fixed in the groove 12. A positioning hole 14 corresponding to the center of the through hole 9 is provided on the cover plate 11. The first bolt 10 is installed in the guide hole 8 through the positioning hole 14. The end of the first bolt 10 passes through the through hole 9 and is threadedly matched with the first nut 13. The first bolt 10 can be fixed by the first nut 13, so that the mounting seat 6 and the cover plate 11 are fixed as a whole; the mounting groove 5 is provided with a first stopper 15 and a second stopper 16 at the opening of the positioning groove 3, and the two ends of the blade 4 are respectively limited on the first stopper 15 and the second stopper 16. The two ends of the blade 4 are also correspondingly provided with inclined avoidance openings 17, and the avoidance openings 17 allow the blade 4 to pass through the mounting groove 5 and be placed in the positioning groove 3. The first stopper 15 and the second stopper 16 limit the blade 4 body in the mounting groove 5.

[0037] In some embodiments, Figures 5 to 8As shown, the first handle 1 is provided with a first hinged portion 18 of a cylindrical body, and the second handle 2 is correspondingly provided with a second hinged portion 19. After the first hinged portion 18 and the second hinged portion 19 cooperate, they are hinged through a second bolt 20 and a second nut 21, wherein the first hinged portion 18 is provided with a first insertion hole 22, and the second hinged portion 19 is provided with a second insertion hole 23, the second nut 21 is fixed in the second insertion hole 23, the second bolt 20 passes through the first insertion hole 22 and cooperates with the second nut 21, and the head of the second bolt 20 is embedded in the first insertion hole 22; in this embodiment, the driving member is a torsion spring 24, and the torsion spring 24 is sleeved on the second bolt 20, wherein the first handle 1 and the second handle 2 are respectively provided with a first supporting groove 25 and a second supporting groove 26, and the two ends of the torsion spring 24 are respectively fixed in the first supporting groove 25 and the second supporting groove 26, so that the hand-held parts of the first handle 1 and the second handle 2 are stretched outward, so that the operating ends of the ends of the first handle 1 and the second handle 2 are retracted toward the middle, so that the positioning groove 3 is retracted to clamp the pipe fitting.

[0038] In some embodiments, Figure 1 and Fig.10 As shown, a protective plate 27 is provided between the positioning grooves 3, and the protective plate 27 can be inserted on the pipe cutter from between the positioning grooves 3. A baffle 28 is symmetrically provided in the middle of the protective plate 27, and the blade 4 is placed between the baffles 28. The baffle 28 can wrap the blade 4 to prevent the pipe cutter from accidentally scratching the hand when placing and taking it. A limiting portion 29 is also provided on the protective plate 27, and the limiting portion 29 abuts against the end of the first handle 1, thereby limiting the insertion depth of the protective plate 27 and facilitating the removal of the protective plate 27 before use.

[0039] The utility model provides a circumferential cutting pipe cutter, wherein a first handle is hingedly matched with a second handle, an internal driving member can push the positioning grooves at the ends of the first handle and the second handle to close together, so that the pipe and the blade are clamped by the arc-shaped positioning groove, and the pipe can be cut by rotating the handle ends. The pipe cutter has a uniform and smooth incision after processing the pipe, so that the subsequent use effect of the pipe is better, and there is no need to press the handle multiple times for cutting, which is more labor-saving. In addition, a detachable mounting seat is provided on the first handle, and a spare blade is stored inside, so that the blade can be stored and replaced.

[0040] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A pipe cutter for encircling cutting, comprising a first handle (1) and a second handle (2) hinged to each other, characterized in that: The first handle (1) and the second handle (2) are symmetrically arranged, and the inner sides of the ends thereof are both provided with arc-shaped positioning grooves (3), and the positioning grooves (3) are used to position the pipe fittings. A blade (4) is inserted on the side wall of the positioning groove (3) of the first handle (1), and a driving member is installed at the hinge of the first handle (1) and the second handle (2). The driving member drives the positioning grooves (3) on the first handle (1) and the second handle (2) to close so that the blade (4) fits the pipe fitting. The first handle and the second handle are rotated with the pipe fitting as the center, and the blade (4) can cut the pipe fitting by circling around the pipe fitting.

2. The pipe cutter for encircling cutting according to claim 1, characterized in that: A mounting groove (5) is provided on one side of the positioning groove (3) of the first handle (1), a mounting seat (6) is provided in the mounting groove (5), and the blade (4) is fixed between the mounting groove (5) and the mounting seat (6).

3. The pipe cutter for encircling cutting according to claim 2, characterized in that: A slot (7) is provided in the mounting seat (6), and the slot (7) is used to place a spare blade (4).

4. The pipe cutter for encircling cutting as claimed in claim 3, characterized in that: A guide hole (8) is symmetrically provided on one side of the slot (7), a through hole (9) corresponding to the center of the guide hole (8) is provided on the mounting groove (5), a first bolt (10) is provided in each of the guide holes (8), and the first bolt (10) passes through the blade (4) and the through hole (9).

5. The pipe cutter for encircling cutting as claimed in claim 4, characterized in that: The upper end surface of the mounting seat (6) is provided with a cover plate (11), and the shape of the cover plate (11) is the same as that of the mounting groove (5) and the mounting seat (6). The first handle (1) is provided with a groove (12) on the other side of the through hole (9), and a first nut (13) is fixed in each of the grooves (12). The cover plate (11) is provided with a positioning hole (14) corresponding to the center of the through hole (9), and the first bolt (10) is installed in the guide hole (8) through the positioning hole (14). The end of the first bolt (10) passes through the through hole (9) and is threadedly engaged with the first nut (13).

6. The pipe cutter for encircling cutting as claimed in claim 2, characterized in that: The installation groove (5) is provided with a first stopper (15) and a second stopper (16) at the opening of the positioning groove (3); the two ends of the blade (4) are respectively limited on the first stopper (15) and the second stopper (16); the two ends of the blade edge of the blade (4) are also provided with inclined avoidance openings (17) correspondingly; the avoidance openings (17) enable the blade edge of the blade (4) to pass through the installation groove (5) and be placed in the positioning groove (3).

7. The pipe cutter for encircling cutting as claimed in claim 1, characterized in that: The first handle (1) is provided with a first hinged portion (18) of a cylindrical body, and the second handle (2) is correspondingly provided with a second hinged portion (19). The first hinged portion (18) and the second hinged portion (19) are hingedly connected by a second bolt (20) and a second nut (21) after being matched.

8. The circumferential cutting pipe cutter according to claim 7, characterized in that: The first hinged portion (18) is provided with a first insertion hole (22), the second hinged portion (19) is provided with a second insertion hole (23), the second nut (21) is fixed in the second insertion hole (23), and the second bolt (20) passes through the first insertion hole (22) and cooperates with the second nut (21).

9. The pipe cutter for encircling cutting according to claim 7, characterized in that: The driving member is a torsion spring (24), and the torsion spring (24) is sleeved on the second bolt (20). The first handle (1) and the second handle (2) are respectively provided with a first supporting groove (25) and a second supporting groove (26), and two ends of the torsion spring (24) are respectively fixed in the first supporting groove (25) and the second supporting groove (26).

10. The circumferential cutting pipe cutter according to claim 1, characterized in that: A protective plate (27) is provided between the positioning grooves (3), a baffle plate (28) is symmetrically provided in the middle of the protective plate (27), the blade (4) is placed between the baffle plates (28), a limiting portion (29) is also provided on the protective plate (27), the limiting portion (29) abuts against the end of the first handle (1), and the side end surfaces of the first handle (1) and the second handle (2) located at the positioning groove (3) are both provided with anti-slip portions (30).

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