Hole opener convenient to clean

Abstract

The utility model relates to the technical field of tappers, in particular to a tapper convenient to clean, which comprises a tapper body, a plurality of blade teeth are integrally formed at one end of the tapper body, and a second hollow hole and a first hollow hole are formed in the surface of the tapper body and used for reducing the dead weight of the tapper body. A heat dissipation notch is formed in the surface of the tapper body; the tapper convenient to clean has the advantages that the running speed of the tapper in the working process is increased, so that the cutting and drilling efficiency is improved, the hollowed-out holes in the tapper base body can well dissipate heat generated in the working process of the tapper under the condition that it is guaranteed that the tapper runs stably, and the service life of the tapper is prolonged. Deformation of the tapper caused by high temperature is reduced, the service life of the tapper is prolonged, and in the same working environment, energy and electricity can be better saved due to the fact that the weight is reduced. And through the hollowed-out holes in the base body, material scraps remaining in the tapper after work can be cleared away more conveniently.

Description

Technical Field

[0001] The utility model relates to the field of hole openers, in particular to a hole opener which is easy to clean. Background Art

[0002] A hole opener, also known as a hole saw or hole saw, refers to a special circular saw for sawing circular holes in modern industry or engineering. The hole opener has different hole diameters and specifications according to the size of the circle. It is installed on power tools such as hand drills, impact drills, and radial drills. It is simple and flexible to operate, easy to carry, safe, and has a wide range of uses.

[0003] Most of the existing hole openers have a complete circular surface or only have small holes, which will have a certain impact on the operating speed of the hole opener. It needs to consume more external energy during continuous work. The completed base surface is not conducive to the heat dissipation of the hole opener after continuous work, and may cause the hole opener to deform. Because there are no holes or small holes on the base surface, it is difficult to clean out the residual material waste inside after the work is completed. Utility Model Content

[0004] The purpose of the utility model is to provide a hole opener that is easy to clean, so as to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a hole opener that is easy to clean, comprising a hole opener body, one end of which is integrally formed with a plurality of blade teeth, a second hollow hole and a first hollow hole are formed on the surface of the hole opener body to reduce the dead weight of the hole opener body, and a heat dissipation groove is formed on the surface of the hole opener body.

[0006] Preferably, a tooth groove is formed between two adjacent cutting teeth.

[0007] Preferably, a circular arc groove is formed on the bottom surface of the tooth groove, and the circular arc groove is located on the outer ring surface of the hole opener body.

[0008] Preferably, the hollow hole one and the hollow hole two correspond one to one, a plurality of hollow hole one are provided, and the plurality of hollow holes one are arranged and distributed at equal distances and sizes with the hole opener body as the central axis.

[0009] Preferably, a center hole is formed at one end of the hole opener body, and the center hole is centered on a circular surface at one end of the hole opener body.

[0010] Preferably, a limiting hole is provided at one end of the hole opener body, and a plurality of limiting holes are provided, and the plurality of limiting holes are distributed in a circle with the central hole as the center.

[0011] Preferably, both sides of the center hole are provided with embedding grooves in the form of annular grooves, a metal ring is fixed on the surface of the embedding groove, a rubber sleeve is fixed on one end of the metal ring, the rubber sleeve is a ring plate structure with a "concave"-shaped cross-section, the inner ring diameter of the rubber sleeve is larger than the diameter of the center hole, and the thickness of the rubber sleeve is larger than the depth of the embedding groove.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] The utility model provides a hole opener that is easy to clean, improves the operating speed of the hole opener during operation, and thus improves the efficiency of cutting and drilling. The hollow holes on the base of the hole opener can well dissipate the heat generated by the hole opener during operation while ensuring the stable operation of the hole opener, reduce the deformation of the hole opener caused by high temperature, and increase the service life of the hole opener. In the same working environment, the weight reduction can better save energy and electricity. The hollow holes on the base can more conveniently clean the material waste left inside the hole opener after work. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the utility model structure after inversion;

[0016] Figure 3 This is a top view of the structure of the utility model;

[0017] Figure 4 for Figure 3 Structural cross-section view at AA in the middle;

[0018] Figure 5 for Figure 4 A schematic diagram of the structure enlargement in the middle;

[0019] Figure 6 for Figure 4 A magnified schematic diagram of the structure at B in the middle;

[0020] Figure 7 This is a structural schematic diagram of the first embodiment of the utility model.

[0021] In the figure: the hole opener body 1, the blade teeth 2, the tooth grooves 3, the arc grooves 4, the hollow hole 1 5, the hollow hole 2 6, the center hole 7, the limit hole 8, the embedding groove 9, the metal ring 10, and the rubber sleeve 11. DETAILED DESCRIPTION

[0022] In order to make the purpose and technical solution of the utility model clearly and completely described, and the advantages more clearly understood, the embodiments of the utility model are further described in detail in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are part of the embodiments of the utility model, not all of the embodiments, and are only used to explain the embodiments of the utility model, and are not used to limit the embodiments of 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.

[0023] Embodiment 1

[0024] See also Figure 1-Figure 3 as well as Figure 5 As shown, the utility model provides a technical solution: a hole opener that is easy to clean, including a hole opener body 1, one end of the hole opener body 1 is integrally formed with a plurality of blade teeth 2, a tooth groove 3 is formed between two adjacent blade teeth 2, the surface of the hole opener body 1 is provided with a hollow hole 2 6 and a hollow hole 1 5, which are used to reduce the dead weight of the hole opener body 1, and a heat dissipation slot is formed on the surface of the hole opener body 1, the hollow hole 1 5 and the hollow hole 2 6 correspond one to one, a plurality of hollow holes 1 5 are provided, and the plurality of hollow holes 1 5 are arranged and distributed at equal distances and sizes with the hole opener body 1 as the central axis.

[0025] Under the premise of ensuring that the base body of the hole opener 1 has high strength and is not prone to deformation and fracture when the hole opener body 1 is in operation, a hollow design is performed on the base body surface of the hole, and the laser cutting technology is used to cut and hollow out the base body surface of the completed hole opener body 1, and the laser welding technology is used to roll the hole opener body 1 into a circle and connect it completely, so that the strength of the base body of the hole opener body 1 can be ensured, and the overall weight of the hole opener body 1 can be reduced, so that the operation speed can be increased during operation, thereby improving the cutting efficiency and saving energy and electricity; the hollowed-out hollow hole 1 5 and the hollow hole 2 6 can dissipate heat, avoid deformation of the base body of the hole opener body 1 due to high temperature, and increase the service life; the hollowed-out holes can more conveniently observe and clean the material waste remaining in the hole opener body 1 after cutting, and the corners of the grooves of the hollowed-out hollow hole 1 5 and the hollow hole 2 6 are both arc-shaped grooves.

[0026] Embodiment 2

[0027] See attached Figure 4 as well as Figure 6As shown, on the basis of the first embodiment, in order to realize the built-in sealing gasket on the surface of the hole opener body 1 and cooperate with the later installation and use, a center hole 7 is opened at one end of the hole opener body 1, and the center hole 7 is centered on the circular surface of one end of the hole opener body 1; a limiting hole 8 is opened at one end of the hole opener body 1, and a plurality of limiting holes 8 are provided, and the plurality of limiting holes 8 are distributed in a circle with the center hole 7 as the center; embedding grooves 9 are opened on both sides of the center hole 7, and the embedding grooves 9 are annular grooves. A metal ring 10 is fixed on the surface of the embedding groove 9, and a rubber sleeve 11 is fixed on one end of the metal ring 10. The rubber sleeve 11 is a ring plate structure with a "concave"-shaped cross-section, and the inner ring diameter of the rubber sleeve 11 is larger than the diameter of the center hole 7, and the thickness of the rubber sleeve 11 is larger than the depth of the embedding groove 9.

[0028] When in use, rubber sleeves 11 are installed on both sides of the center hole 7 so that when the hole opener body 1 is installed on the shaft and locked by a nut, the rubber sleeve 11 acts as an elastic gasket, and the metal ring 10 is supported between the embedding groove 9 and the rubber sleeve 11, thereby improving the elastic supporting effect of the rubber sleeve 11.

[0029] 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 hole opener that is easy to clean, comprising a hole opener body (1), characterized in that: One end of the hole opener body (1) is integrally formed with a plurality of blade teeth (2), and the surface of the hole opener body (1) is provided with a second hollow hole (6) and a first hollow hole (5) for reducing the deadweight of the hole opener body (1), and a heat dissipation slot is formed on the surface of the hole opener body (1).

2. The hole opener that is easy to clean according to claim 1, characterized in that: A tooth groove (3) is formed between two adjacent blade teeth (2).

3. The hole opener that is easy to clean according to claim 2, characterized in that: The bottom surface of the tooth groove (3) is provided with a circular arc groove (4), and the circular arc groove (4) is located on the outer ring surface of the hole opener body (1).

4. The hole opener that is easy to clean according to claim 1, characterized in that: The hollow holes 1 (5) and the hollow holes 2 (6) correspond to each other one by one. There are a plurality of hollow holes 1 (5), and the plurality of hollow holes 1 (5) are arranged and distributed at equal distances and in equal sizes with the hole opener body (1) as the central axis.

5. The hole opener that is easy to clean according to claim 1, characterized in that: A center hole (7) is formed at one end of the hole opener body (1), and the center hole (7) is centered on a circular surface at one end of the hole opener body (1).

6. The hole opener that is easy to clean according to claim 5, characterized in that: A limiting hole (8) is provided at one end of the hole opener body (1), and a plurality of limiting holes (8) are provided. The plurality of limiting holes (8) are distributed in a circle with the central hole (7) as the center.

7. The hole opener that is easy to clean according to claim 5, characterized in that: Both sides of the center hole (7) are provided with an embedding groove (9), the embedding groove (9) is an annular groove, a metal ring (10) is fixed on the surface of the embedding groove (9), one end of the metal ring (10) is sleeved and fixed with a rubber sleeve (11), the rubber sleeve (11) is a ring plate structure with a "concave"-shaped cross section, the inner ring diameter of the rubber sleeve (11) is larger than the diameter of the center hole (7), and the thickness of the rubber sleeve (11) is larger than the depth of the embedding groove (9).

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