CN211915666U - Pipe cutter with quick replaceable blade - Google Patents

Abstract

The utility model provides a pipe cutter with a blade capable of being replaced quickly, which comprises a fixed handle and a blade component hinged on the fixed handle, wherein the blade component comprises a blade and a cutter holder, one end of the blade is provided with an inserting part, and the inserting part is inserted on the cutter holder; a first clamping groove is formed in the inserting part, a second clamping groove corresponding to the first clamping groove is formed in the cutter holder, a limiting groove is formed by the first clamping groove and the second clamping groove in a surrounding mode, and a limiting rod matched with the limiting groove is slidably mounted on the cutter holder; when the blade is replaced, the limiting rod is slid to be separated from the limiting groove, and then the blade is pulled out; the utility model provides a pair of but pipe cutting knife of quick replacement blade has overcome the defect that current pipe cutting knife blade is not convenient for change, the dismouting is troublesome, the dismouting wastes time and energy.

Description

Pipe cutter with quick replaceable blade

Technical Field

The utility model relates to a pipe cutting knife field especially relates to a but pipe cutting knife of quick replacement blade.

Background

When the pipe is produced, the pipe has a fixed length specification according to transportation requirements and national regulations, but when the pipe is installed and used, the length requirements of the pipe are different due to the complex and diversified use occasions, so that the pipe needs to be cut when being used. The original pipe cutting does not have special cutting tool, mostly directly uses the cutter, but directly cuts with the cutter and wastes time and energy, consequently through people's research, has researched and developed a pipe cutting knife.

The existing pipe cutter is generally provided with a blade, and the blade is generally arranged on the pipe cutter through the matching of a screw and a nut; when the blade needs to be replaced, the blade needs to be replaced only by unscrewing the screw, the blade is troublesome to disassemble and assemble, time and labor are wasted, the working efficiency is influenced, and the practicability is lower.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The utility model aims to solve the problem that a pipe cutting knife of quick replacement blade is provided to overcome the defect that current pipe cutting knife blade is not convenient for change, the dismouting is troublesome, the dismouting wastes time and energy.

(II) technical scheme

In order to solve the technical problem, the utility model provides a pipe cutter with a blade capable of being replaced quickly, which comprises a fixed handle and a blade component hinged on the fixed handle, wherein the blade component comprises a blade and a cutter holder, one end of the blade is provided with an inserting part, and the inserting part is inserted on the cutter holder; the tool apron is provided with a limiting groove, a limiting rod matched with the limiting groove is slidably mounted on the tool apron, and the limiting rod is used for clamping or separating the inserting part and the tool apron; the blade and the cutter holder are in a split type, the blade is detachably mounted on the cutter holder, the limiting rod is arranged in the limiting groove in a normal state through the matching of the first clamping groove, the second clamping groove and the limiting rod, and the blade is locked on the cutter holder; when the blade is replaced, the limiting rod slides to separate the limiting rod from the limiting groove, the blade can be pulled out after being unlocked, the replacement is convenient, the operation is simple, and the time and the labor are saved during the disassembly and the assembly. When the blade is replaced, the limiting rod is slid to be separated from the limiting groove, and then the blade is pulled out.

Furthermore, limiting plates are symmetrically fixed to two ends of the upper end and the lower end of the tool apron, and inserting grooves matched with the inserting portions are formed between the limiting plates and the tool apron in a surrounding mode. The limiting rod is provided with a connecting part, and the connecting part penetrates through the fixed handle, the limiting plate and the tool apron in sequence and is in threaded connection with the limiting screw. And a spring is arranged between the limiting screw and the limiting plate, and the spring always enables the limiting rod to have an operation trend of approaching the limiting groove. The spacing groove is the circular slot, the gag lever post be with circular slot complex cylindricality pole, connecting portion are for the diameter is less than the cylindricality pole of gag lever post.

Further, a ratchet part is arranged at the end part of the cutter holder; the fixed handle is hinged with a movable handle, and the movable handle and the fixed handle are respectively hinged with a pawl and a locking rod which are matched with the ratchet wheel part. The movable handle and the fixed handle are provided with a torsional spring therebetween, and the torsional spring always enables the movable handle to move towards the moving trend of the fixed handle away from the movable handle. The movable handle is rotatably provided with a hook hanging rack, and the fixed handle is provided with a lock rod matched with the hook hanging rack.

(III) advantageous effects

The utility model provides a pipe cutting knife capable of rapidly replacing blades, the blades and the knife holder are split, the blades can be detachably arranged on the knife holder, and through the matching of a first clamping groove, a second clamping groove and a limiting rod, the limiting rod is arranged in the limiting groove in a normal state, and the blades are locked on the knife holder; when the blade is replaced, the limiting rod is slid to separate the limiting rod from the limiting groove, the blade can be pulled out after being unlocked, the replacement is convenient, the operation is simple, and the disassembly and the assembly are time-saving and labor-saving; overcomes the defects that the blade of the existing pipe cutter is not convenient to replace, is troublesome to disassemble and assemble, and wastes time and labor in disassembling and assembling.

Drawings

FIG. 1 is a perspective view of a pipe cutter with a quick replaceable blade according to the present invention;

FIG. 2 is an exploded view of a tube cutter with a quick replaceable blade according to the present invention;

FIG. 3 is an exploded view of a quick blade change tubular cutter blade assembly of the present invention;

FIG. 4 is a perspective view of the utility model after the blade of the pipe cutter with the blade capable of being replaced rapidly is installed;

FIG. 5 is a perspective view of the utility model of a tube cutter with a quick replaceable blade when the blade is disassembled;

the corresponding part names for the various reference numbers in the figures are: 1. fixing a handle; 2. a blade assembly; 3. a movable handle; 4. a pawl; 5. a lock lever; 6. a torsion spring; 7. a hook hanger; 8. a lock lever; 21. a blade; 22. a tool apron; 23. a limiting rod; 24. a limiting plate; 25. a limit screw; 26. a spring; 211. a plug-in part; 212. a first card slot; 221. a second card slot; 222. a ratchet portion; 231. a connecting portion.

Detailed Description

The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

Referring to fig. 1 to 5, the present invention provides a pipe cutter with a fast blade replacement function, which includes a fixed handle 1 and a blade assembly 2 hinged to the fixed handle 1, wherein the blade assembly 2 includes a blade 21 and a blade holder 22, the blade holder 22 is hinged to the fixed handle 1, and a ratchet portion 222 is disposed at an end of the blade holder 22; the fixed handle 1 is hinged with a movable handle 3, and the movable handle 3 and the fixed handle 1 are respectively hinged with a pawl 4 and a locking rod 5 which are matched with the ratchet wheel part 222. A torsion spring 6 is arranged between the movable handle 3 and the fixed handle 1, and the torsion spring 6 always leads the movable handle 3 to move away from the fixed handle 1. The movable handle 3 is rotatably provided with a hook hanger 7, and the fixed handle 1 is provided with a lock rod 8 matched with the hook hanger 7; when in storage, the hook hanger 7 is hooked on the lock rod 8, so that the storage is convenient.

Referring to fig. 2 and 3, one end of the blade 21 is provided with an insertion portion 211, and the insertion portion 211 is inserted into the tool holder 22; limiting plates 24 are symmetrically fixed at two ends of the upper end and the lower end of the tool holder 22, and an insertion groove matched with the insertion part 211 is defined between the limiting plates 24 and the tool holder 22. The inserting portion 211 is provided with a first engaging groove 212, the tool holder 22 is provided with a second engaging groove 221 corresponding to the first engaging groove 212, the first engaging groove 212 and the second engaging groove 221 form a limiting groove, and the tool holder 22 is slidably provided with a limiting rod 23 matched with the limiting groove. In this embodiment, the first engaging groove 212 and the second engaging groove 221 are both arc-shaped grooves, the limiting groove is a circular groove, and the limiting rod 23 is a cylindrical rod matched with the circular groove; when in actual use, the limiting groove with a proper shape can be selected according to requirements. The limiting rod 23 is provided with a connecting part 231, the connecting part 231 penetrates through the fixed handle 1, the limiting plate 24 and the tool apron 22 in sequence and is in threaded connection with the limiting screw 25, and the connecting part 231 is a cylindrical rod with the diameter smaller than that of the limiting rod 23. A spring 26 is arranged between the limiting screw 25 and the limiting plate 24, and the spring 26 always enables the limiting rod 23 to move towards the limiting groove.

Referring to fig. 4, in a normal state, under the action of the spring 26, the limiting rod 23 is placed in the limiting groove, and the blade 21 is locked on the tool holder 22. Referring to fig. 5, when the blade 21 is replaced, the limit screw 25 is pressed down, the limit screw 25 drives the limit rod 23 to slide downwards, the limit rod 23 is separated from the limit groove, and the blade 21 can be directly pulled out from the cutter holder 22 after being unlocked; at this time, the connecting part 231 is arranged in the limiting groove, but the blade 21 cannot be clamped because the diameter of the connecting part 231 is smaller than that of the limiting rod 23; when a new blade 21 is replaced, the new blade 21 is inserted into the tool holder 22, the limiting rod 23 is placed in the limiting groove again under the action of the spring 26, and the blade 21 is locked on the tool holder 22.

The pipe cutting knife capable of rapidly replacing the blade provided by the embodiment adopts the split type blade and the knife holder, the blade is detachable, the blade is locked on the knife holder in a normal state through the matching of the limiting groove and the limiting rod, and the limiting rod is arranged in the limiting groove; when the blade is replaced, the limiting rod slides to separate the limiting rod from the limiting groove, the blade can be pulled out after being unlocked, the replacement is convenient, the operation is simple, and the time and the labor are saved during the disassembly and the assembly.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the technical principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.

Claims (9)

1. A pipe cutter with a quick replaceable blade is characterized in that: the blade assembly comprises a fixed handle (1) and a blade assembly (2) hinged to the fixed handle (1), wherein the blade assembly (2) comprises a blade (21) and a cutter holder (22), one end of the blade (21) is provided with an insertion part (211), the insertion part (211) is inserted into the cutter holder (22), and a limiting rod (23) used for clamping or separating the insertion part (211) and the cutter holder (22) is slidably mounted on the cutter holder (22); when the blade (21) is replaced, the limiting rod (23) is pressed downwards, and the blade (21) is separated from the cutter holder (22).

2. The pipe cutter with quick replaceable blade as set forth in claim 1, wherein: the inserting part (211) is provided with a first clamping groove (212), the tool apron (22) is provided with a second clamping groove (221) corresponding to the first clamping groove (212), and the first clamping groove (212) and the second clamping groove (221) are enclosed to form a limiting groove matched with the limiting rod (23).

3. The pipe cutter with quick replaceable blade as set forth in claim 2, wherein: limiting plates (24) are symmetrically fixed at the upper end and the lower end of the tool apron (22), and inserting grooves matched with the inserting parts (211) are formed between the limiting plates (24) and the tool apron (22).

4. The pipe cutter with quick replaceable blade as set forth in claim 3, wherein: be provided with connecting portion (231) on gag lever post (23), connecting portion (231) run through in proper order fixed handle (1), limiting plate (24) with blade holder (22) and with stop screw (25) threaded connection.

5. The pipe cutter with quick replaceable blade as set forth in claim 4, wherein: a spring (26) is installed between the limiting screw (25) and the limiting plate (24), and the spring (26) always enables the limiting rod (23) to move towards the limiting groove.

6. The pipe cutter with quick replaceable blade as set forth in claim 4, wherein: the limiting groove is a circular groove, the limiting rod (23) is a cylindrical rod matched with the circular groove, and the connecting portion (231) is a cylindrical rod with the diameter smaller than that of the limiting rod (23).

7. The pipe cutter with quick replaceable blade as set forth in claim 1, wherein: a ratchet part (222) is arranged at the end part of the tool apron (22); the movable handle (3) is hinged to the fixed handle (1), and the movable handle (3) and the fixed handle (1) are respectively hinged to a pawl (4) and a locking rod (5) which are matched with the ratchet part (222).

8. The pipe cutter with quick replaceable blade as set forth in claim 7, wherein: the movable handle (3) and the fixed handle (1) are provided with a torsion spring (6) therebetween, and the torsion spring (6) always enables the movable handle (3) to move towards the fixed handle (1).

9. The pipe cutter with quick replaceable blade as set forth in claim 7, wherein: the movable handle (3) is rotatably provided with a hook hanging rack (7), and the fixed handle (1) is provided with a lock rod (8) matched with the hook hanging rack (7).

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