CN204673697U - A kind of new type rubber plug card punch - Google Patents

Abstract

The utility model relates to a hole puncher, in particular to a new rubber plug hole puncher, which includes a handle and a drill rod, and is characterized in that the drill rod is a hollow circular tube structure, and the lower part of the drill rod is a circular tube Cut-off part and blades are installed on both sides of the round pipe cut-off part, and the bottom of the drill pipe is a centering round hole; the side wall of the drill pipe except the round pipe cut-off part and the centering round hole is covered with cross threads. The beneficial effects of the utility model are: the lower part of the drill pipe is cut for a short section, and a blade is set, which changes the more laborious conventional way of pressing down the drill pipe, saving time and effort; Make the inner wall of the drilling hole smoother and achieve a better drilling effect.

Description

A New Type of Rubber Plug Hole Puncher

technical field

The utility model relates to a hole puncher, in particular to a laboratory rubber stopper hole puncher.

Background technique

The rubber stopper is a kind of sealing device used in chemical experiments. Since it is often necessary to insert a glass tube to form a connecting device during use, it is often necessary to use a puncher to punch holes. The most commonly used hole puncher is a hollow drill rod at present, and one end both sides of drill rod extend outwards as handle, and the other end is a circular opening, and an iron bar is also arranged in the middle. When punching a hole, choose a hole punch that is slightly thicker than the glass tube to be inserted into the rubber stopper. Put the small end of the stopper upwards and place it on a stable table. Hold the stopper with your left hand and press the handle of the hole puncher with your right hand. At the selected location, drill down vertically in one direction while turning. But this traditional hole punch is more laborious to use, and after the hole is punched, the inside of the hole wall is not smooth, so it is necessary to improve on the basis of the traditional hole punch.

Utility model content

The purpose of this utility model is to provide a new type of rubber plug puncher, which not only has a simple structure and is convenient to process, but also is easy to operate, has a good punching effect, and the inner wall of the hole is smooth after punching.

In order to solve the above technical problems, the utility model adopts the following technical solutions: a new type of rubber plug puncher, including a handle and a drill rod, characterized in that the drill rod is a hollow circular tube structure, and the lower part of the drill rod It is the cut-off part of the round tube and blades are installed on both sides of the cut-off part of the round tube. The bottom of the drill pipe is a centering round hole; the side walls of the other parts of the drill pipe except the cut-out part of the round tube and the centering round hole are covered with cross thread.

In the aforementioned novel rubber stopper punch, the centering round hole is located below the cut-out portion of the round tube, and the space between the cut-out portion of the round tube and the centering round hole is a hollow round tube structure.

In the aforementioned novel rubber plug puncher, the diameter of the centering hole is the inner diameter of the drill pipe, and a slope is formed between the outer diameter and the inner diameter of the drill pipe below the centering hole.

In the aforementioned novel rubber plug puncher, the blades are arranged longitudinally, and the blades are bent toward the side wall of the drill pipe.

In the aforementioned novel rubber plug puncher, the handle and the drill rod are vertically connected to each other, and the handle is a steel sheet welded with a metal pipe.

In the aforementioned novel rubber plug puncher, the lateral distance between the blades installed on both sides is equal to the inner diameter of the hollow tube.

The beneficial effects of the utility model are: the lower part of the drill pipe is cut for a short section, and a blade is set, which changes the more laborious conventional way of pressing down the drill pipe, saving time and effort; Make the inner wall of the drilling hole smoother and achieve a better drilling effect.

Description of drawings

Figure 1 is a schematic diagram of the structure of the new rubber plug puncher

Among the figure: 1, handle, 2, drill pipe, 3, thread, 4, blade, 5, centering round hole.

Detailed ways

Below in conjunction with accompanying drawing, the utility model is further described. The following examples are only used to illustrate the technical solution of the utility model more clearly, but not to limit the protection scope of the utility model.

As shown in Figure 1, a new type of rubber plug puncher includes a handle 1 and a drill rod 2, the handle 1 and the drill rod 2 are vertically connected to each other; the handle 1 is a steel sheet welded with a metal pipe, and the To provide torsion during the drilling process, it is characterized in that the drill rod is a hollow circular tube structure, and the lower part of the drill rod is a cut-away part of the circular tube (that is, that part of the drill rod is cut to the exposed hollow part) and There are blades installed on both sides of the cut-off part of the round pipe, the blades are arranged longitudinally, and the blades are slightly bent toward the side wall (outer wall) of the drill pipe (that is, slightly outwardly bent), so as to facilitate the blade to the rubber during the drilling process. Cutting makes the drilling process more labor-saving, and it is more convenient to cut the rubber in the rubber plug into the round tube; the lateral distance of the blades installed on both sides (that is, the lateral distance of the blades on both sides in Figure 1) is equal to that of the hollow round tube Inner diameter; the bottom of the drill pipe is a centering round hole, and the outside of the side wall of the remaining part of the drill pipe except the cut-off part of the round pipe and the centering round hole is covered with cross threads 3, which are used to smooth the channel during drilling.

The centering round hole 5 is located below the cut-out part of the round tube, and the space between the cut-out part of the round tube and the centering round hole is a hollow round tube structure. The diameter of the centering hole is the inner diameter of the drill pipe, and there is a slope between the outer diameter and inner diameter of the drill pipe part below the centering hole, that is, the structure below the centering hole is a gradually narrowing outer diameter , with the narrowing or not narrowing of the inner diameter, it is convenient for the stability of the drill pipe when drilling.

When drilling, put the small end of the rubber stopper upwards and put it on the table steadily. Hold the stopper with your left hand, hold down the handle 1 of the novel hole puncher with your right hand, and rotate it vertically downwards at a predetermined position. After the drilling is finished, take out the rubber inside the hollow of the drill pipe 2 with a thin iron rod, put the drill pipe 2 into the drill hole again, rotate 30 times clockwise and then 30 times counterclockwise, so that the inner wall of the drill hole is smooth and the The aperture is the outer tube diameter, that is, the outer diameter of the hollow circular tube. During the processing of the blade 4, care should be taken to bend the blade slightly outward, so as to facilitate the cutting of the rubber by the blade during the drilling process.

The above is only the preferred embodiment of the utility model, it should be pointed out that for those of ordinary skill in the art, without departing from the technical principle of the utility model, some improvements and deformations can also be made. And deformation should also be regarded as the protection scope of the present utility model.

Claims (6)

1. A novel rubber plug puncher, comprising a handle and a drill rod, characterized in that, the drill rod is a hollow circular tube structure, and the bottom of the drill rod is a circular tube cut-out portion and is in the circular tube cut-out portion Blades are installed on both sides, and the bottom of the drill pipe is a centering hole; the side walls of the drill pipe except for the cut-off part of the round tube and the centering hole are covered with cross threads. 2. A new type of rubber plug hole puncher according to claim 1, characterized in that, the centering hole is located below the cut-away portion of the round tube, and between the cut-away portion of the round tube and the centering hole It is a hollow circular tube structure. 3. A novel rubber plug puncher according to claim 2, wherein the diameter of the centering hole is the inner diameter of the drill pipe, and the outer diameter and inner diameter of the drill pipe below the centering hole are There is a section of grading in between. 4. A new type of rubber plug puncher according to claim 1, wherein the blades are arranged longitudinally, and the blades are bent toward the side wall of the drill pipe. 5. A new type of rubber plug puncher according to claim 1, characterized in that the handle and the drill rod are vertically connected to each other, and the handle is a steel sheet welded with a metal pipe. 6. A new type of rubber plug puncher according to claim 1, characterized in that the lateral distance of the blades installed on both sides is equal to the inner diameter of the hollow tube.