CN2135433Y

CN2135433Y - Dust collector for percussion drill

Info

Publication number: CN2135433Y
Application number: CN 92218576
Authority: CN
Inventors: 王扬安
Original assignee: Individual
Current assignee: Individual
Priority date: 1992-08-24
Filing date: 1992-08-24
Publication date: 1993-06-09
Anticipated expiration: 2002-08-24

Abstract

The utility model relates to a dust collector for a percussion drill, which is a dust collecting device designed for the percussion drill. The dust collector for a percussion drill is a dust collecting device sheathed on the percussion drill bit, which comprises a breathable and dust leaking-proof dust collecting sleeve in shape of a ripple ellipsoid, exchangeable front and rear axle sleeves provided with a hole diameter on the front and rear end of the dust collecting sleeve, and a brake rod installed on the rear of the dust collecting sleeve. When the bole is drilled, the front axle sleeve tightly stuck on the wall surface, the drill bit is extended from the front axle sleeve hole to drill hole on the wall, the falling dust is carried into the dust collecting sleeve from the front axle sleeve hole by screw threads of the drill rod. The rear of the dust collecting is sealed by the rear axle sleeve, and the purposes of the dust collecting is achieved. The brake rod can prevent the dust collector form following the drill bit to rotate.

Description

Dust collector for percussion drill

Dust collector of impact electric drill is the dust that produces when being used for eliminating the electric impact drill punching.

When punching on the wall with electric impact drill, the dust of generation all has harm to electric drill and people.Chinese patent application numbers 92213057.4 can solve dust removal problem, but goes back defectiveness, and is promptly also drowned to wall the time when the dust arrester front shaft sleeve, starts electric drill and can make dust arrester follow drill bit rotation and influence operation.In addition, for simplifying production technology, good material is made the control of dust overcoat to select screen resilience for use, can save inner lining spring.Therefore, the utility model proposes a kind of novel dust collector of impact electric drill on the basis of improving above-mentioned patent defective.

1. the purpose of this utility model is achieved in that a likeness in form ripple ellipsoid, the ventilative and dust collecting cover that do not leak ash, be equipped with at the 1. forward and backward two ends of dust collecting cover interconvertible front shaft sleeve that aperture and bit diameter be complementary 2. and by the axle sleeve core 3., the 5. bonding rear axle housing that constitutes of sealing ring, 1. a brake bar is housed 4. in the rear portion at dust collecting cover, constitutes the dust collect plant that is enclosed within on the drill hammer.

Explain below in conjunction with Fig. 1, Fig. 2, Fig. 3 and Fig. 4 embodiment impact electric drill dust arrester structure.

Fig. 1 is that dust collector of impact electric drill is contained in the schematic diagram on the electric impact drill.

Fig. 2 is the cutaway view along the dust collector of impact electric drill axis, and its section is the drawing parallel surface of Fig. 1.

Fig. 3 is the cutaway view along axis of rear axle housing.

Fig. 4 is the cutaway view along axis of front shaft sleeve.

In Fig. 1, Fig. 2: 1. dust collecting cover is to collect the boring dust, uses the good synthetic material of screen resilience to make, as rubber and plastic class material.Dust collecting cover has on 1. many ventilative and do not leak the micropore of ash; 2. front shaft sleeve is sealing around the hell, according to the drill bit interchangeable of different-diameter, its structure as shown in Figure 4, it is to be made by synthetic material (as rubber); Rear axle housing is a sealing drilling rod afterbody smooth section with the gap of dust collecting cover between 1., change interchangeable with bit diameter, its structure as shown in Figure 3, by synthetic material (as plastics) or metal axle sleeve core 3. and the sealing ring of being made by rubber-like or rubber and plastic class material is 5. bonding constitutes it be, its axle sleeve core aperture is bigger 0.2 millimeter than corresponding drilling rod afterbody smooth section diameter, and the sealing ring aperture is littler 0.8 millimeter than corresponding drilling rod afterbody smooth section diameter; Front shaft sleeve, rear axle housing are with cooperating between the dust collecting cover closely; Brake bar effect 4. is to stop dust arrester with the drill bit rotation, and its end is an annulus, and annulus links closely and pricks at dust collecting cover 1. on the afterbody in the ad hoc groove, and the other end is fixed on the electric impact drill, and fixing means is not limit.As shown in Figure 1, on the electric impact drill front hand grip, bore a duck eye, be inserted into and get final product (non-closely cooperating, slotting take from as).

When clearing up the dust in the dust arrester, only need beat preceding mouth down gently and get final product.

Claims

1, dust collector of impact electric drill, it is characterized in that: likeness in form ripple ellipsoid, the ventilative and dust collecting cover that do not leak ash are 1., be equipped with at dust collecting cover forward and backward two ends 1. interconvertible front shaft sleeve that aperture and bit diameter be complementary 2. and by the axle sleeve core 3., the 5. bonding rear axle housing that constitutes of sealing ring, 4. dust collecting cover 1. rear portion is equipped with a brake bar, constitutes the dust collect plant that is enclosed within on the drill hammer.

2, dust collector of impact electric drill as claimed in claim 1 is characterized in that 1. dust collecting cover made by the good synthetic material of screen resilience, has many ventilative and do not leak the micropore of ash on it.

3, dust collector of impact electric drill as claimed in claim 1 is characterized in that 2. front shaft sleeve made by synthetic material.

4, dust collector of impact electric drill as claimed in claim 1 is characterized in that rear axle housing is to make the axle sleeve core by synthetic material or metal to do with soft elastic material 3. that sealing ring is 5. bonding to be constituted.

5, dust collector of impact electric drill as claimed in claim 1, it is characterized in that brake bar 4. an end be an annulus, annulus links closely and pricks at dust collecting cover 1. in the groove that aims at its setting at rear portion, the other end is fixed on the electric impact drill.