Automatic dust collecting device for electric hammer punching

Abstract

The utility model relates to the technical field of electric hammer dust removal, in particular to an electric hammer punching automatic dust collecting device which comprises an electric hammer body, the electric hammer body comprises a drill bit, a main grip and an auxiliary grip, and a dust collecting mechanism is arranged on the left side of the electric hammer body and comprises a circular groove which is formed in the left side surface of the electric hammer body and corresponds to the drill bit in position. An inner sleeve is fixedly installed on the inner wall of the right side of the circular groove, the surface of the inner sleeve is sleeved with an outer sleeve and a spring, and the two ends of the spring are fixedly connected with the inner wall of the circular groove and the right end of the outer sleeve respectively. The dust collecting mechanism is arranged, the outer sleeve abuts against the surface of the wall face through the abutting ring, at the moment, a closed space can be formed under the action of the outer sleeve and the inner sleeve, the dust raising condition is avoided, meanwhile, an air pump operates to suck dust in the outer sleeve and the inner sleeve into a collecting bottle through an annular dust suction cavity and dust suction holes, and the dust collecting effect is improved. And the dust is filtered and collected through a filter screen, so that the device can fully collect the dust.

Description

Technical Field

[0001] The utility model relates to the technical field of electric hammer dust removal, in particular to an automatic dust collection device for electric hammer drilling. Background Art

[0002] Electric hammer is a hand-held electric tool with impact as the main function and rotation as the auxiliary function. The standard code is GB / T 7443-2007. Electric hammer consists of electric motor, gear reducer, crank-connecting rod impact mechanism, drill mechanism, overload protection device, power switch and power connection device. It can be generally divided into two types: impact electric hammer and rotary electric hammer. It is mainly used for drilling, grooving and crushing brittle materials such as masonry, concrete and ceramics.

[0003] In the prior art, a Chinese patent with announcement number CN213889869U discloses an electric hammer that is convenient for collecting dust and debris, which adopts the scheme of "including an electric hammer and a handle, the handle is fixedly connected to the left side of the bottom of the electric hammer, a fixing device is provided at the bottom of the electric hammer, and the fixing device includes a first latch, a second latch and a first shell, the outer wall of the first latch is respectively matched with the upper and lower side through holes of the handle and the right side through hole of the first shell, and the upper through hole gap of the first latch is matched with the second latch". This scheme inserts the first shell into the groove on the left side of the handle through the cooperation between the first latch, the second latch and the sliding sleeve, and then inserts the first latch, and then inserts the second latch to fix it again. The whole process is simple and quick, which solves the problem of troublesome installation during work, meets the work needs of modern people, and improves practicality.

[0004] However, the above scheme still has some shortcomings. For example, when the above scheme is actually used, dust flies everywhere when the electric hammer is drilling, so the scheme can only collect the dust flying downward, and thus cannot fully collect and process the dust. There are dust suction corners. In view of this, the utility model proposes an automatic dust collection device for electric hammer drilling. Utility Model Content

[0005] The utility model aims to provide an automatic dust collecting device for electric hammer drilling to solve the problems raised in the above background technology.

[0006] To achieve the above object, the utility model provides the following technical solutions: an automatic dust collecting device for electric hammer drilling, comprising an electric hammer body, the electric hammer body comprising a drill bit, a main handle and an auxiliary handle, and a dust collecting mechanism is arranged on the left side of the electric hammer body;

[0007] The dust collecting mechanism includes a circular groove which is provided on the left side surface of the electric hammer body and corresponds to the position of the drill bit, an inner sleeve is fixedly installed on the right inner wall of the circular groove, an outer sleeve and a spring are respectively sleeved on the surface of the inner sleeve, two ends of the spring are respectively fixedly connected to the inner wall of the circular groove and the right end of the outer sleeve, an annular dust suction chamber is provided on the right inner wall of the circular groove, a dust suction hole which penetrates into the inner sleeve is provided on the inner wall of the annular dust suction chamber, an installation chamber is provided inside the shell of the electric hammer body, a driving assembly is arranged inside the installation chamber, a mounting ring is fixedly installed on the lower surface of the electric hammer body, a collecting bottle is arranged inside the mounting ring, a dust discharge port which penetrates into the lower surface of the electric hammer body and corresponds to the position of the mounting ring is provided on the inner bottom wall of the annular dust suction chamber, a filter is arranged on the inner bottom of the collecting bottle, an air pump is fixedly installed on the upper surface of the electric hammer body, and the air suction end of the air pump extends to the inside of the collecting bottle.

[0008] As a preferred technical solution, the inner top wall and the inner bottom wall of the outer sleeve are both provided with guide slide blocks, and the upper surface and the lower surface of the inner sleeve are both provided with guide grooves for the guide slide blocks to slide.

[0009] As a preferred technical solution, the surface of the mouth of the collecting bottle is provided with an external thread, and the mouth of the collecting bottle is threadedly connected to the inner ring surface of the mounting ring via the external thread.

[0010] As a preferred technical solution, a butt ring is provided at the left end of the outer sleeve.

[0011] As a preferred technical solution, an annular ventilation cavity corresponding to the position of the installation cavity is opened inside the shell of the electric hammer body, the air outlet end of the air pump extends to the inside of the annular ventilation cavity, and the inner wall of the annular ventilation cavity is opened with an air outlet hole that penetrates into the installation cavity.

[0012] As a preferred technical solution, there are a plurality of air outlet holes, which are arranged in a circular array on the inner wall of the annular ventilation cavity.

[0013] As a preferred technical solution, a switch button is embedded on the left surface of the main handle. Beneficial Effects

[0014] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0015] The utility model provides a dust collecting mechanism, and the outer sleeve is pressed against the surface of the wall through a resisting ring. At this time, a closed space can be formed under the action of the outer sleeve and the inner sleeve to avoid the occurrence of dust. At the same time, the operation of the air pump sucks the dust in the outer sleeve and the inner sleeve into the collection bottle through the annular dust suction chamber and the dust suction hole, and collects the dust through the filter net, so that the device can fully collect dust and avoid the occurrence of dust due to the existence of dead corners for dust collection.

[0016] The utility model achieves the effect of collecting dust by setting an annular ventilation chamber. At the same time, the air outlet end of the air pump blows air into the annular ventilation chamber and blows it into the installation chamber through the air outlet hole, thereby cooling the driving components therein, avoiding the electric hammer from being heated for a long time and increasing its service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 This is a front view structural schematic diagram of the utility model;

[0019] Figure 2 It is a schematic diagram of the front section structure of the utility model;

[0020] Figure 3 For the utility model Figure 2 The enlarged structural diagram at A in the middle;

[0021] Figure 4 It is a schematic diagram of the side section structure of the utility model.

[0022] In the figure: 1. Electric hammer body; 101. Drill bit; 102. Main handle; 103. Auxiliary handle; 2. Inner sleeve; 3. Outer sleeve; 4. Spring; 5. Drive assembly; 6. Mounting ring; 7. Collection bottle; 8. Filter; 9. Air pump; 10. Buffer ring; 11. Annular ventilation chamber; 12. Switch button; 13. Annular dust suction chamber. DETAILED DESCRIPTION

[0023] 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.

[0024] According to the attached Figure 1-4 As shown, an embodiment of the utility model provides an automatic dust collection device for electric hammer drilling, including an electric hammer body 1, the electric hammer body 1 includes a drill bit 101, a main handle 102 and an auxiliary handle 103, a switch button 12 is embedded on the left surface of the main handle 102, and a dust collection mechanism is provided on the left side of the electric hammer body 1.

[0025] The dust collecting mechanism includes a circular groove opened on the left side surface of the electric hammer body 1 and corresponding to the position of the drill bit 101, an inner sleeve 2 is fixedly installed on the right inner wall of the circular groove, an outer sleeve 3 and a spring 4 are respectively sleeved on the surface of the inner sleeve 2, and the two ends of the spring 4 are respectively fixedly connected to the inner wall of the circular groove and the right end of the outer sleeve 3, an annular dust suction chamber 13 is opened on the right inner wall of the circular groove, and a dust suction hole is opened on the inner wall of the annular dust suction chamber 13 which penetrates into the inner sleeve 2.

[0026] A butt ring 10 is provided at the left end of the outer sleeve 3. The butt ring 10 makes the contact between the outer sleeve 3 and the wall surface more stable.

[0027] An installation cavity is provided inside the shell of the electric hammer main body 1, and a driving component 5 is arranged inside the installation cavity. A mounting ring 6 is fixedly installed on the lower surface of the electric hammer main body 1, and a collecting bottle 7 is arranged inside the mounting ring 6. The inner bottom wall of the annular dust suction cavity 13 is provided with a dust exhaust port that passes through the lower surface of the electric hammer main body 1 and corresponds to the position of the mounting ring 6. The surface of the bottle mouth of the collecting bottle 7 is provided with an external thread, and the bottle mouth of the collecting bottle 7 is threadedly connected to the inner ring surface of the mounting ring 6 through the external thread. The threaded connection provides convenience for the loading and unloading and cleaning of the collecting bottle 7.

[0028] A filter screen 8 is provided at the inner bottom of the collecting bottle 7 , and an air pump 9 is fixedly mounted on the upper surface of the electric hammer body 1 , and an air suction end of the air pump 9 extends to the interior of the collecting bottle 7 .

[0029] The inner top wall and the inner bottom wall of the outer sleeve 3 are both provided with guide slide blocks, and the upper surface and the lower surface of the inner sleeve 2 are both provided with guide grooves for the guide slide blocks to slide. Under the guiding and limiting action of the guide slide blocks, the spring 4 can smoothly push the outer sleeve 3 to move on the surface of the inner sleeve 2.

[0030] An annular ventilation cavity 11 corresponding to the position of the installation cavity is provided inside the shell of the electric hammer body 1. The air outlet end of the air pump 9 extends to the inside of the annular ventilation cavity 11. The inner wall of the annular ventilation cavity 11 is provided with air outlet holes that penetrate into the inside of the installation cavity. There are several air outlet holes, which are arranged in a circular array on the inner wall of the annular ventilation cavity 11. Through the arrangement of the annular ventilation cavity 11 and the air outlet holes, the driving component 5 of the electric hammer can be cooled by blowing air when the air pump 9 is running.

[0031] Working principle: When the electric hammer is used to drive the drill bit 101 for drilling operations, the outer sleeve 3 is pressed against the surface of the wall through the retaining ring 10. At this time, a closed space can be formed under the action of the outer sleeve 3 and the inner sleeve 2 to avoid dust. At the same time, the operation of the air pump 9 sucks the dust in the outer sleeve 3 and the inner sleeve 2 into the collection bottle 7 through the annular dust suction chamber 13 and the dust suction hole, and filters and collects it through the filter net 8 to achieve the effect of collecting dust. At the same time, the air outlet end of the air pump 9 blows air into the annular ventilation chamber 11 and blows it into the installation chamber through the air outlet, so as to cool the driving component 5 therein and avoid the electric hammer from being heated for a long time.

[0032] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. An automatic dust collection device for electric hammer drilling, characterized in that: The electric hammer body (1) comprises an electric hammer main body (1), the electric hammer main body (1) comprises a drill bit (101), a main grip (102) and an auxiliary grip (103), and a dust collecting mechanism is arranged on the left side of the electric hammer main body (1); The dust collecting mechanism comprises a circular groove formed on the left side surface of the electric hammer body (1) and corresponding to the position of the drill bit (101); an inner sleeve (2) is fixedly mounted on the right inner wall of the circular groove; an outer sleeve (3) and a spring (4) are respectively sleeved on the surface of the inner sleeve (2); two ends of the spring (4) are respectively fixedly connected to the inner wall of the circular groove and the right end of the outer sleeve (3); an annular dust suction chamber (13) is formed on the right inner wall of the circular groove; a dust suction hole penetrating into the interior of the inner sleeve (2) is formed on the inner wall of the annular dust suction chamber (13); An installation cavity is provided inside the shell, a driving assembly (5) is arranged inside the installation cavity, a mounting ring (6) is fixedly mounted on the lower surface of the electric hammer body (1), a collecting bottle (7) is arranged inside the mounting ring (6), an inner bottom wall of the annular dust suction cavity (13) is provided with a dust discharge port which passes through the lower surface of the electric hammer body (1) and corresponds to the position of the mounting ring (6), a filter screen (8) is arranged on the inner bottom of the collecting bottle (7), an air pump (9) is fixedly mounted on the upper surface of the electric hammer body (1), and an air suction end of the air pump (9) extends to the inside of the collecting bottle (7).

2. The automatic dust collection device for electric hammer drilling according to claim 1 is characterized in that: The inner top wall and the inner bottom wall of the outer sleeve (3) are both provided with guide slide blocks, and the upper surface and the lower surface of the inner sleeve (2) are both provided with guide slide grooves for the guide slide blocks to slide.

3. The automatic dust collecting device for electric hammer drilling according to claim 1 is characterized in that: The surface of the mouth of the collecting bottle (7) is provided with an external thread, and the mouth of the collecting bottle (7) is threadedly connected to the inner ring surface of the mounting ring (6) via the external thread.

4. The automatic dust collecting device for electric hammer drilling according to claim 1 is characterized in that: A retaining ring (10) is provided at the left end of the outer sleeve (3).

5. The automatic dust collection device for electric hammer drilling according to claim 1 is characterized in that: An annular ventilation cavity (11) corresponding to the position of the installation cavity is provided inside the shell of the electric hammer body (1), an air outlet end of the air pump (9) extends into the annular ventilation cavity (11), and an air outlet hole penetrating into the installation cavity is provided on the inner wall of the annular ventilation cavity (11).

6. The automatic dust collection device for electric hammer drilling according to claim 5 is characterized in that: The number of the air outlet holes is a plurality, and the plurality of air outlet holes are arranged in a circular array on the inner wall of the annular ventilation cavity (11).

7. The automatic dust collection device for electric hammer drilling according to claim 1 is characterized in that: A switch button (12) is embedded on the left surface of the main handle (102).

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