Pipe scissors facilitating pipe fixing

Abstract

The utility model discloses a pair of pipe scissors convenient for pipe fixation, which comprises a fixed cutter head and a movable blade, the fixed cutter head is provided with a pipe fixing cutter edge, and the cutter edge contour line of the pipe fixing cutter edge sequentially comprises a plurality of groups of arc sections with different inner diameters from inside to outside, so that pipes with different specifications can be attached to the corresponding arc sections. According to the pipe scissors, the arc sections with different inner diameters are arranged in the pipe fixing knife edge, so that the pipe scissors can be suitable for cutting various pipes with different common specifications, the pipes are effectively fixed during cutting, and the cutting quality is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of pipe shearing, in particular to a pair of pipe scissors which are convenient for fixing pipes. Background Art

[0002] Aluminum-plastic pipes, plastic pipes and other pipes need to be cut as needed during use, and pipe scissors are a common and simple cutting tool. Pipe scissors are generally composed of a fixed cutter head and a movable blade connected by a movable pin. The current fixed cutter head is provided with an arc-shaped blade (such as the content disclosed in Chinese utility model CN ​​214924630U), which is used to accommodate pipes and then cut the pipes through the movable blade during use. During specific use, due to the different specifications of commonly used pipes, it is often encountered that the pipe cannot fit with the inner surface of the blade in the arc-shaped blade, and it is difficult to be effectively fixed, which affects the cutting quality. Utility Model Content

[0003] The utility model aims to provide a pair of pipe scissors which are convenient for fixing pipes, so as to solve the problems existing in the prior art.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a pair of pipe scissors that are convenient for fixing pipes, comprising a fixed blade and a movable blade, wherein the fixed blade is provided with a pipe fixing blade, and the blade contour line of the pipe fixing blade includes, from the inside to the outside, a plurality of groups of arc segments with different inner diameters, so that pipes of different specifications can fit into the corresponding arc segments.

[0005] Preferably, the middle of the blade of the movable blade protrudes outwards.

[0006] Preferably, a blade slot corresponding to the movable blade is provided in the middle of the fixed blade head.

[0007] Preferably, the fixed blade head is integrally provided with a fixed handle, the relatively middle portion of the movable blade is connected to the shoulder of the fixed handle via a movable pin, and the rear end of the movable blade is fixedly connected to the movable handle.

[0008] Preferably, a safety locking mechanism is provided between the tail ends of the fixed handle and the movable handle to prevent the scissors from opening.

[0009] Preferably, the safety locking mechanism comprises a movable buckle rotatably connected to the rear end of the movable knife handle and a slot provided at the rear end of the fixed knife handle, and the buckle matches the slot.

[0010] Compared with the prior art, the utility model has the following beneficial effects:

[0011] 1. The utility model arranges multiple arc sections with different inner diameters in the fixed blade of the pipe, so that the pipe scissors can be suitable for cutting pipes of various commonly used specifications. The pipe is effectively fixed during cutting, and the pipe can be effectively guaranteed to be free of damage and the shearing flatness during the shearing process, thereby improving the shearing quality.

[0012] 2. As a preferred embodiment of the present invention, the present invention adopts a snap-on safety locking mechanism at the tail ends of the fixed handle and the movable handle. Compared with the currently used hoop structure, it is more secure and not easy to fall off, and can effectively prevent the scissors from opening due to misoperation. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0014] Figure 2 It is a schematic diagram of the structure of the pipe scissors of the utility model after being opened.

[0015] Figure 3 It is a schematic diagram of the contour line of the cutting edge of the pipe fixing cutting edge in the utility model.

[0016] Figure 4 It is a structural schematic diagram of the safety locking mechanism in the utility model.

[0017] In the figure: 1. fixed blade head; 2. movable blade; 3. fixed blade handle; 4. movable blade handle; 5. fixed blade edge of pipe, 51. first arc segment, 52. second arc segment, 53. third arc segment; 6. blade slot; 7. safety locking mechanism, 71. movable buckle, 72. slot. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical solution and advantages of the utility model more clearly understood, the utility model is further specifically described below through embodiments.

[0019] Embodiment: A pipe scissors for facilitating pipe fixing, referring to Figure 1-4 , including a fixed blade head 1 and a movable blade 2, the fixed blade head 1 is integrally connected with a fixed handle 3, the movable blade 2 is stamped from all steel, and its relatively middle part is connected to the shoulder of the fixed handle 3 by a movable pin, and the tail end of the movable blade 2 is fixedly connected to the movable handle 4 by bolts, thereby forming a scissors structure as a whole.

[0020] In the above structure, the fixed blade head 1 is provided with a pipe fixed blade 5, and the blade contour of the pipe fixed blade 5 is distributed in sequence from the middle to the two ends in a nearly symmetrical manner with a first arc segment 51, a second arc segment 52, and a third arc segment 53, that is, each arc segment is a group of two, symmetrically distributed on both sides of the pipe fixed blade, and the two arc segments in the same group coincide with their fitting circle. The inner diameters of the first arc segment 51, the second arc segment 52, and the third arc segment 53 increase in sequence, and are equivalent to commonly used specifications of pipes, for example, corresponding to commonly used 20mm, 25mm, and 32mm pipes, respectively. Of course, the specific number of arc segments and the inner diameter can be determined according to the pipe specifications often encountered in the environment where the pipe scissors are used.

[0021] When cutting a pipe of corresponding specifications, the pipe is placed in the pipe fixed blade 5, and the pipe will fit with the corresponding two arc segments, so that the pipe is effectively fixed. In addition, the blade of the movable blade 2 in this embodiment is in a wedge shape with a protrusion in the middle, so that when the movable blade 2 starts to contact the pipe, the force is concentrated on the top blade tip, which is convenient for cutting the surface of the pipe. A blade slot 6 corresponding to the movable blade 2 is also provided in the middle of the fixed blade head 1, which is used to accommodate the movable blade 2 when cutting or when the pipe scissors are put away.

[0022] In this embodiment, a safety locking mechanism 7 is provided between the tail ends of the fixed handle 3 and the movable handle 4 to prevent the scissors from opening. When the scissors are not in use, the scissors can be prevented from opening and causing the blades to injure people. Specifically, the safety locking mechanism 7 includes an active buckle 71 rotatably connected to the tail end of the movable handle and a slot 72 provided at the tail end of the fixed handle. The buckle 71 and the slot 72 are matched in an inverted manner. When the scissors are not in use, the active buckle 71 can be buckled into the slot 72 to fix it; conversely, the active buckle 71 can be separated from the slot 72 to open the scissors for normal use.

[0023] The fixed knife handle and the fixed knife head of this embodiment are integrally stamped and formed, and the knife handle adopts a large arc design, which feels more comfortable.

[0024] The above embodiments are only for illustrating the technical concept and features of the utility model, and their purpose is to enable people familiar with the technology to understand the content of the utility model and implement it accordingly, and they cannot be used to limit the protection scope of the utility model. Any equivalent changes or modifications made according to the spirit of the utility model should be included in the protection scope of the utility model.

Claims

1. A pipe scissors for convenient pipe fixing, comprising a fixed blade head and a movable blade, wherein the fixed blade head is provided with a pipe fixing blade edge, characterized in that: The blade contour line of the pipe fixing blade includes a plurality of groups of arc segments with different inner diameters from the inside to the outside, so that pipes of different specifications can fit into the corresponding arc segments.

2. The pipe scissors for facilitating pipe fixing according to claim 1, characterized in that: The middle of the blade of the movable blade protrudes outwards.

3. The pipe scissors for facilitating pipe fixing according to claim 1, characterized in that: A blade slot corresponding to the movable blade is arranged in the middle of the fixed blade head.

4. The pipe scissors for facilitating pipe fixing according to claim 1, characterized in that: The fixed blade head is integrally provided with a fixed blade handle, the relative middle portion of the movable blade is connected to the shoulder of the fixed blade handle through a movable pin, and the rear end of the movable blade is fixedly connected to the movable blade handle.

5. The pipe scissors for facilitating pipe fixing according to claim 4, characterized in that: A safety locking mechanism is provided between the tail ends of the fixed knife handle and the movable knife handle to prevent the scissors from opening.

6. The pipe scissors for facilitating pipe fixing according to claim 5, characterized in that: The safety locking mechanism comprises an active buckle rotatably connected to the rear end of the active knife handle and a slot provided at the rear end of the fixed knife handle, and the buckle matches the slot.

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