Hard alloy hole saw structure with precise guide assembly

Abstract

The hard alloy hole saw structure comprises a drill rod, a drill cylinder is fixedly connected to the surface of the drill rod, a connecting cylinder is arranged at one end of the drill cylinder and the surface of the drill rod, air holes are formed in one end of the drill cylinder and one end of the connecting cylinder in a penetrating mode, one end of the connecting cylinder is rotationally connected with the drill cylinder, and the other end of the connecting cylinder is rotationally connected with the drill rod. The other end of the connecting cylinder is connected with the drill rod in a rotating mode, and a connecting mechanism used for sealing is arranged between the drill rod and the connecting cylinder. According to the hard alloy hole saw structure with the precise guide assembly, through cooperative arrangement of the connecting cylinder, the collecting pipe and the connecting mechanism, during drilling operation, chippings in the drilling cylinder can be conveniently and timely guided out, the chippings are prevented from being accumulated in the drilling cylinder, the influence of the chippings on the drilling precision and the drilling efficiency is greatly reduced, the overall structural design is simple and reasonable, and the practicability is high. The device is convenient to operate and use, has good practical value and is convenient to popularize and use.

Description

Technical Field

[0001] The utility model relates to the technical field of carbide hole saws, in particular to a carbide hole saw structure with a precise guide component. Background Art

[0002] Carbide hole saw is a kind of drilling metal, non-ferrous metal, wood, plastic and various man-made materials such as plywood, medium density fiberboard, veneer, asbestos board, etc. It is widely used in construction, maintenance and some industrial manufacturing markets.

[0003] According to patent authorization announcement number CN 103111664 B, a connecting handle, in particular a bimetal hole saw connecting handle. The present invention provides a bimetal hole saw connecting handle that prevents the hole saw from shaking after installation, including a connecting handle body and a transmission pin, the connecting handle body includes a power connection end, a drill saw connection end provided with a hole saw connection thread and a center drill installation hole, and an installation portion provided with a mounting through hole, the installation portion is arranged between the power connection end and the drill saw connection end, the transmission pin is arranged in the installation through hole and can move axially along the installation through hole. In the existing carbide hole saw structure, such as the above-mentioned utility model, the debris cut by the hole saw and the center drill accumulates inside the hole saw, which not only affects the working efficiency of drilling, but also affects the accuracy of punching. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a carbide hole saw structure with a precise guide assembly, which solves the problem that in the existing carbide hole saw structure, debris cut by the hole saw and the center drill accumulates inside the hole saw, which not only affects the drilling efficiency but also affects the accuracy of the drilling.

[0005] To achieve the above objectives, the utility model is implemented through the following technical solutions: a carbide hole saw structure with a precise guide assembly, comprising a drill rod, a drill barrel fixedly connected to the surface of the drill rod, a connecting barrel provided at one end of the drill barrel and the surface of the drill rod, an air vent is provided through one end of the drill barrel and the connecting barrel, one end of the connecting barrel is rotatably connected to the drill barrel, and the other end of the connecting barrel is rotatably connected to the drill rod, a connecting mechanism for sealing is provided between the drill rod and the connecting barrel, and a collecting pipe is connected to one side of the connecting barrel.

[0006] Preferably, one end of the drill tube is fixedly connected to a mounting tube, and one end of the connecting tube close to the drill tube is fixedly connected to a connecting ring, and the connecting ring is located inside the mounting tube and is rotatably connected to the mounting tube.

[0007] Preferably, the connection mechanism comprises a mounting ring, the mounting ring is fixedly connected to the surface of the drill rod, and a sealing spring is fixedly connected to one end of the mounting ring and located on the surface of the drill rod.

[0008] Preferably, one end of the sealing spring away from the mounting ring is fixedly connected to a dynamic sealing ring, which is slidably connected to the surface of the drill pipe, and one end of the connecting tube is fixedly connected to a static sealing ring, which is rotatably connected to the static sealing ring.

[0009] Preferably, one end of the mounting ring is fixedly connected to a guide cylinder, and the inner wall of the guide cylinder is slidably connected to the dynamic sealing ring.

[0010] Preferably, one end of the collecting tube away from the connecting tube is connected to the dust collecting device, and a handle for convenient hand-holding is fixedly connected to the surface of the connecting tube.

[0011] Beneficial Effects

[0012] The utility model provides a carbide hole saw structure with a precise guide assembly. Compared with the prior art, it has the following beneficial effects:

[0013] (1) The carbide hole saw structure with a precise guide component is fixedly connected to a drill barrel through the surface of a drill rod, a connecting barrel is provided at one end of the drill barrel and the surface of the drill rod, an air vent is formed through one end of the drill barrel and the connecting barrel, one end of the connecting barrel is rotatably connected to the drill barrel, and the other end of the connecting barrel is rotatably connected to the drill rod, a connecting mechanism for sealing is provided between the drill rod and the connecting barrel, one side of the connecting barrel is connected to a collecting pipe, one end of the collecting pipe away from the connecting barrel is connected to a dust collecting device, a handle is fixedly connected to the surface of the connecting barrel for convenient hand-holding, and the connecting barrel, the collecting pipe, and the connecting mechanism are arranged in coordination, so that during drilling operation, the debris inside the drill barrel can be conveniently discharged in time to avoid the accumulation of debris inside the drill barrel, thereby greatly reducing the influence of the debris on the drilling accuracy and drilling efficiency. The overall structural design is simple and reasonable, and the operation and use are convenient, with good practical value, and it is easy to promote and use.

[0014] (2) The carbide hole saw structure with a precise guide assembly includes a mounting ring through a connecting mechanism. The mounting ring is fixedly connected to the surface of the drill rod. A sealing spring is fixedly connected to one end of the mounting ring and located on the surface of the drill rod. A dynamic sealing ring is fixedly connected to the end of the sealing spring away from the mounting ring. The dynamic sealing ring is slidably connected to the surface of the drill rod. A static sealing ring is fixedly connected to one end of the connecting tube. The dynamic sealing ring is rotatably connected to the static sealing ring. A guide tube is fixedly connected to one end of the mounting ring. The inner wall of the guide tube is slidably connected to the dynamic sealing ring. Through the setting of the connecting mechanism, the dynamic sealing ring fits with the static sealing ring under the action of the sealing spring during the rotation of the drill rod to seal the connection between the connecting tube, the drill rod and the drill tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional diagram of the structure of the utility model;

[0016] Figure 2It is a cross-sectional view of the structure of the utility model;

[0017] Figure 3 It is a cross-sectional view of the connecting mechanism of the utility model.

[0018] In the figure: 1 drill rod, 2 drill tube, 3 connecting tube, 4 connecting mechanism, 41 mounting ring, 42 sealing spring, 43 dynamic sealing ring, 44 static sealing ring, 45 guide tube, 5 air vent, 6 collecting tube, 7 mounting tube, 8 connecting ring, 9 handle. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] The utility model provides two technical solutions:

[0021] Figure 1-3 The first embodiment is shown: a carbide hole saw structure with a precise guiding assembly, comprising a drill rod 1, a drill barrel 2 is fixedly connected to the surface of the drill rod 1, a connecting barrel 3 is provided at one end of the drill barrel 2 and the surface of the drill rod 1, an air vent 5 is penetrated by one end of the drill barrel 2 and the connecting barrel 3, one end of the connecting barrel 3 is rotatably connected to the drill barrel 2, and the other end of the connecting barrel 3 is rotatably connected to the drill rod 1, a connecting mechanism 4 for sealing is provided between the drill rod 1 and the connecting barrel 3, one side of the connecting barrel 3 is connected to a collecting pipe 6, one end of the drill barrel 2 is fixedly connected to a mounting barrel 7, an end of the connecting barrel 3 close to the drill barrel 2 is fixedly connected to a connecting ring 8, the connecting ring 8 is located inside the mounting barrel 7 and is rotatably connected to the mounting barrel 7, the end of the collecting pipe 6 away from the connecting barrel 3 is connected to a dust suction device, and a handle 9 for convenient handholding is fixedly connected to the surface of the connecting barrel 3.

[0022] Through the coordinated arrangement of the connecting tube 3, the collecting tube 6 and the connecting mechanism 4, during the drilling operation, it is convenient to timely discharge the debris inside the drill tube 2 to avoid the accumulation of debris inside the drill tube 2, thereby greatly reducing the influence of the debris on the drilling accuracy and drilling efficiency. The overall structural design is simple and reasonable, the operation and use are convenient, it has good practical value, and is easy to promote and use.

[0023] Figure 2 and 3A second embodiment is shown, which mainly differs from the first embodiment in that: the connecting mechanism 4 includes a mounting ring 41, the mounting ring 41 is fixedly connected to the surface of the drill pipe 1, one end of the mounting ring 41 and located on the surface of the drill pipe 1 is fixedly connected with a sealing spring 42, the sealing spring 42 is in a compressed state, the end of the sealing spring 42 away from the mounting ring 41 is fixedly connected with a dynamic sealing ring 43, the dynamic sealing ring 43 is slidably connected to the surface of the drill pipe 1, one end of the connecting tube 3 is fixedly connected with a static sealing ring 44, the dynamic sealing ring 43 is rotatably connected to the static sealing ring 44, one end of the mounting ring 41 is fixedly connected with a guide tube 45, and the inner wall of the guide tube 45 is slidably connected to the dynamic sealing ring 43.

[0024] By setting the connection mechanism 4 , during the rotation of the drill rod 1 , the dynamic sealing ring 43 is fitted with the static sealing ring 44 under the action of the sealing spring 42 to seal the connection between the connecting tube 3 and the drill rod 1 and the drill tube 2 .

[0025] When in use, the drill rod 1 is fixedly connected to the output end of the power motor, the power motor is turned on by the control switch, the power motor is held tightly with one hand and the handle 9 is held tightly with the other hand, the drill rod 1 is aligned with the center of the borehole, the drill rod 1 first drills into the material to guide the drill barrel 2, and as the drill rod 1 continues to penetrate deeper, the drill barrel 2 continues to approach the material to drill the material, and during the rotation of the drill rod 1, the dynamic sealing ring 43 fits with the static sealing ring 44 under the action of the sealing spring 42 to seal the connection between the connecting tube 3 and the drill rod 1 and the drill barrel 2, and during the drilling process, the external dust suction device works to adsorb and collect the debris drilled by the drill barrel 2 through the collection tube 6.

[0026] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0027] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A carbide hole saw structure with a precision guide assembly, comprising a drill rod (1), characterized in that: The surface of the drill rod (1) is fixedly connected to a drill barrel (2); one end of the drill barrel (2) and the surface of the drill rod (1) are provided with a connecting barrel (3); one end of the drill barrel (2) and the connecting barrel (3) are penetrated with an air vent (5); one end of the connecting barrel (3) is rotatably connected to the drill barrel (2); the other end of the connecting barrel (3) is rotatably connected to the drill rod (1); a connecting mechanism (4) for sealing is provided between the drill rod (1) and the connecting barrel (3); one side of the connecting barrel (3) is connected to a collecting pipe (6).

2. A carbide hole saw structure with a precision guide assembly according to claim 1, characterized in that: One end of the drill tube (2) is fixedly connected to a mounting tube (7), and one end of the connecting tube (3) close to the drill tube (2) is fixedly connected to a connecting ring (8); the connecting ring (8) is located inside the mounting tube (7) and is rotatably connected to the mounting tube (7).

3. A carbide hole saw structure with a precision guide assembly according to claim 1, characterized in that: The connection mechanism (4) comprises a mounting ring (41), the mounting ring (41) being fixedly connected to the surface of the drill rod (1), and a sealing spring (42) being fixedly connected to one end of the mounting ring (41) and located on the surface of the drill rod (1).

4. A carbide hole saw structure with a precision guide assembly according to claim 3, characterized in that: One end of the sealing spring (42) away from the mounting ring (41) is fixedly connected to a dynamic sealing ring (43), and the dynamic sealing ring (43) is slidably connected to the surface of the drill pipe (1). One end of the connecting tube (3) is fixedly connected to a static sealing ring (44), and the dynamic sealing ring (43) is rotatably connected to the static sealing ring (44).

5. A carbide hole saw structure with a precision guide assembly according to claim 4, characterized in that: One end of the mounting ring (41) is fixedly connected to a guide cylinder (45), and the inner wall of the guide cylinder (45) is slidably connected to the dynamic sealing ring (43).

6. A carbide hole saw structure with a precision guide assembly according to claim 1, characterized in that: One end of the collecting pipe (6) away from the connecting tube (3) is connected to the dust collecting device, and a handle (9) for convenient hand-holding is fixedly connected to the surface of the connecting tube (3).

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