Electric hammer capable of efficiently collecting and sucking dust

By designing protective covers, dust collecting mechanisms and scrapers on the electric hammer, the problems of low dust collection efficiency and dust blocking the line of view of existing electric hammers are solved, and efficient dust collection and ash absorption are achieved, improving the practicality and safety of the electric hammers.

CN120156019AInactive Publication Date: 2025-06-17ЧЖЭЦЗЯН ХАНБО ПАУЭР ТУЛС КО ЛТД

Patent Information

Application Number
CN202510637014.2
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-05-19
Publication Date
2025-06-17
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

When drilling and hitting, the dust collection structure consumes too much power, and the dust collection efficiency is not high. The dust adheres to the inner wall of the shield, blocking the line of sight, affecting the drilling and hitting work.

Method used

An electric hammer including a protective cover, a dust collecting mechanism and a scraper is designed. The protective cover blocks dust through a rubber folding ring. The dust collecting mechanism uses a micro negative pressure fan to absorb dust and scrape the dust off through the scraper. The dust collecting cylinder collects dust.

Benefits of technology

It realizes efficient dust collection and ash absorption, reduces power consumption, avoids dust blocking the view, and improves the practicality and safety of the electric hammer.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

The invention discloses an electric hammer capable of efficiently collecting and sucking dust, and relates to the technical field of electric hammers, the electric hammer comprises an electric hammer body and a mounting rod, and one side of the electric hammer body is connected with a front end driving assembly. According to the electric hammer capable of efficiently collecting and sucking dust, firstly, flying fine dust and splashing stones are blocked through the protective cover and the rubber folding ring, and workers are prevented from making direct contact with the fine dust and the stones; meanwhile, the motor in the electric hammer body drives the dust collecting mechanism to adsorb fine dust in the protective cover while driving the drill rod to rotate and impact, the dust collecting mechanism and the drill rod operate at the same time, power consumption can be reduced, the dust collecting mechanism adsorbs the fine dust, and after the drill rod leaves a drilled position, the drill rod can be driven to rotate and impact. Fine dust cannot fly into the mouth and nose of a worker, the scraping plate can be driven to scrape off the dust on the inner wall of the protective cover while the drill rod rotates, the situation that the dust shields the inner wall of the protective cover and affects the drilling sight line is avoided, and the practicability and safety of the electric hammer are improved.
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Description

Technical Field

[0001] The present invention relates to the technical field of electric hammers, and specifically to an electric hammer capable of efficiently collecting dust and sucking ash. Background Technique

[0002] An electric hammer is an efficient power tool widely used in fields such as construction, decoration, and repair. It is specifically used for drilling and chiseling in hard materials such as concrete and masonry. It combines the functions of rotation and impact, and can quickly and easily complete the drilling task. Electric hammers are usually equipped with high-power motors to provide strong impact force to meet various drilling requirements. As an important tool at the construction site, electric hammers have become one of the worker's construction equipment due to their high efficiency and convenience.

[0003] In order to prevent a lot of fine dust from being inhaled into the mouths and noses of workers during drilling, existing electric hammers will install a retractable shield on the outer side of the drill rod to block dust. At the same time, some electric hammers will also install a dust collection structure inside the shield, which has a simple wind adsorption component and a filter screen to filter and collect dust. However, these dust collection structures often require an additional power source, resulting in excessive power consumption. Only relying on the filter screen for filtration, the efficiency of dust collection and ash suction is not high. At the same time, the dust adheres to the inner wall of the shield, blocking the worker's line of sight and affecting the drilling work. Therefore, we have proposed an electric hammer capable of efficiently collecting dust and sucking ash. Summary of the Invention

[0004] The purpose of the present invention is to provide an electric hammer capable of efficiently collecting dust and sucking ash to solve the problems raised in the above background technique.

[0005] To achieve the above object, the present invention provides the following technical solution: A hammer drill capable of efficiently collecting dust and sucking ash, comprising a hammer drill body and a mounting rod. One side of the hammer drill body is connected with a front-end drive assembly, and the other side of the hammer drill body is fixedly connected with a handle. A drill rod is installed at one end of the front-end drive assembly away from the hammer drill body. A protective cover is provided at one end of the front-end drive assembly close to the outside of the drill rod. The mounting rod is fixedly connected to one end of the protective cover. A dust collection mechanism is connected to the outside of the protective cover and the mounting rod. The dust collection mechanism includes a connecting cover fixedly welded to the protective cover. An air inlet groove is formed inside the connecting cover. A separation cylinder is connected to the through port of the connecting cover through a diversion hose. A dust collection cylinder is threadedly sleeved at the bottom end of the separation cylinder. A top cover is threadedly sleeved at the top end of the separation cylinder. One side of the top cover is connected with a circular cover through an air outlet hose. One side of the circular cover is fixedly connected to the hammer drill body. A micro negative pressure fan is installed on the outer wall of the hammer drill body close to the inner cavity of the circular cover through a bearing. A gear is fixedly connected to one end of the micro negative pressure fan close to the inner cavity of the hammer drill body. A motor is fixedly installed in the inner cavity of the hammer drill body. A drive shaft is connected above the motor through a coupling. A toothed disc is fixedly sleeved on the outside of the drive shaft. A fixed ring is fixedly sleeved on the outer wall of the drill rod.

[0006] Preferably, docking rods are fixed on the outer shells on both sides of the front-end drive assembly, and the docking rods are slidably sleeved between the two sides of the protective cover. A rubber folding ring is fixedly pasted at one end of the protective cover close to the drill rod.

[0007] Preferably, a sleeve ring is installed on one side of the fixed ring through a bolt. A ring of scraping plates is connected to the outside of the sleeve ring. The mounting rod and the hammer drill body are connected by bolts.

[0008] Preferably, the opening of the air inlet groove is located on the inner wall of the protective cover. The top end of the drive shaft is connected with a central drive assembly. The toothed disc and the gear are meshed with each other.

[0009] Preferably, the sleeve ring is movably sleeved on the drill rod. L-shaped plates are fixedly connected to both sides of the mounting rod. Rotating shafts are fixedly connected to both sides of the separation cylinder, and the rotating shafts and the L-shaped plates are connected through bearings.

[0010] Preferably, a telescopic groove is formed inside the rotating shaft. A limiting rod is slidably sleeved inside the telescopic groove, and the limiting rod slidably penetrates through the inside of the L-shaped plate.

[0011] Preferably, a return spring is movably sleeved at one end of the limiting rod close to the inside of the telescopic groove. Plug blocks are fixed at both ends of the limiting rod. Limiting holes are formed on the surface of the L-shaped plate.

[0012] Preferably, an air outlet is provided at the top of the separation cylinder close to the top cover, and a filter plate is provided above the inner side of the top cover close to the air outlet.

[0013] Preferably, an anti - detachment mechanism is provided inside the handle. The anti - detachment mechanism includes a chute opened inside the handle, and a round rod is slidably sleeved inside the chute.

[0014] Preferably, one end of the round rod close to the outside of the handle is connected with a finger pressure plate, and a support spring is movably sleeved at one end of the round rod close to the chute.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: For this electric hammer that can efficiently collect dust and absorb ash, first, the protective cover and the rubber folding ring block the flying fine dust and splashing stones, preventing the staff from directly contacting the fine dust and stones. At the same time, the motor inside the electric hammer drives the drill rod to rotate and impact while driving the dust collection mechanism to adsorb the fine dust inside the protective cover. The dust collection mechanism and the drill rod operate simultaneously, which can reduce power consumption. Moreover, the dust collection mechanism adsorbs the fine dust, so that after the drill rod leaves the drilled position, the fine dust will not fly into the staff's mouth and nose. While the drill rod rotates, it can drive the scraper to scrape the dust on the inner wall of the protective cover, preventing the dust from blocking the inner wall of the protective cover and affecting the drilling line of sight, thus improving the practicability and safety of the electric hammer.

[0016] 1. For this electric hammer that can efficiently collect dust and absorb ash, when the drill rod strikes, the protective cover blocks the flying fine dust, preventing the fine dust from directly contacting the staff's mouth and nose. At the same time, the motor drives the gear disc to rotate through the drive shaft. The gear disc is meshed with the gear, and the gear then drives the micro negative pressure fan to rotate rapidly. The dust collection mechanism adsorbs and collects the fine dust blocked inside the protective cover. And when the electric hammer body is in a vertical state, the limit rod can adjust the separation cylinder to an inclined state, facilitating the dust to fall into the dust collection cylinder. The protective cover can effectively block the dust from directly contacting the staff's mouth and nose, and the dust collection mechanism can adsorb and collect the flying dust inside the protective cover, avoiding the staff from inhaling dust for a long time and affecting their own health, thus improving the practicability of the electric hammer; 2. For this electric hammer that can efficiently collect dust and absorb ash, while the dust collection mechanism and the drill rod are working, the drill rod rotates to drive the scraper to rotate, and the scraper scrapes the dust on the inner wall of the protective cover, preventing the dust from adhering to the inner wall of the protective cover for a long time. The length of the protective cover is less than that of the drill rod. The rubber folding ring is provided to facilitate the telescopic drilling of the drill rod while always blocking at the drilled position to prevent the flying of broken stones or dust, and cooperating with the dust collection mechanism, it can effectively improve the dust collection efficiency and at the same time avoid the broken stones from causing harm to the staff, thus improving the safety of the electric hammer; 3. When gripping the handle of the electric hammer capable of efficiently collecting dust and sucking ash, insert the four fingers through the gap between the finger pressing plate and the inner wall of the handle. Drive the finger pressing plate to move through the finger pulling force. At the same time, the finger pressing plate drives the round rods at both ends to slide in the chute, and the round rods squeeze and support the support spring against the inner wall of the chute, causing the support spring to contract. After the fingers are fully grasped on the outside of the handle, the support spring rebounds to drive the round rods to slide in the chute. Finally, the round rods drive the inner side of the finger pressing plate to abut against the fingers, which can reduce the probability of unstable gripping and slipping off the hand, and improve the stability of the electric hammer. Description of the Drawings

[0017] Figure 1 Schematic three-dimensional structure diagram of the dust collection mechanism of the present invention; Figure 2 Schematic three-dimensional structure diagram of the present invention; Figure 3 Schematic three-dimensional structure diagram of the electric hammer body of the present invention; Figure 4 Schematic three-dimensional sectional structure diagram of the electric hammer body of the present invention; Figure 5 Schematic three-dimensional structure diagram of the scraper of the present invention; Figure 6 Schematic three-dimensional sectional structure diagram of the air inlet groove of the present invention; Figure 7 Schematic three-dimensional structure diagram of the dust collection cylinder of the present invention; Figure 8 Schematic three-dimensional structure diagram of the limit rod of the present invention; Figure 9 Schematic three-dimensional structure diagram of the separation cylinder of the present invention; Figure 10 Schematic three-dimensional structure diagram of the anti-detachment mechanism of the present invention.

[0018] In the figure: 1, electric hammer body; 2, front-end drive assembly; 3, handle; 4, protective cover; 5, rubber folding ring; 6, dust collection mechanism; 601, connecting cover; 602, diversion hose; 603, separation cylinder; 604, dust collection cylinder; 605, air outlet hose; 606, circular cover; 7, drill rod; 8, L-shaped plate; 9, anti-detachment mechanism; 901, chute; 902, support spring; 903, round rod; 10, finger pressing plate; 11, mounting rod; 12, limit rod; 13, rotating shaft; 14, collar; 15, scraper; 16, docking rod; 17, fixed ring; 18, limit hole; 19, top cover; 20, central drive assembly; 21, micro negative pressure fan; 22, drive shaft; 23, motor; 24, gear disk; 25, gear; 26, air inlet groove; 27, telescopic groove; 28, return spring; 29, insertion block; 30, filter plate; 31, air outlet. Detailed Embodiments

[0019] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0020] Please refer to Figures 1-7 and Figure 10 , the present invention provides a technical solution: a hammer drill capable of efficiently collecting dust and sucking ash, including a hammer drill body 1 and a mounting rod 11. One side of the hammer drill body 1 is connected with a front-end drive assembly 2, and the other side of the hammer drill body 1 is fixedly connected with a handle 3. One end of the front-end drive assembly 2 away from the hammer drill body 1 is provided with a drill rod 7, and the top end of the drive shaft 22 is connected with a central drive assembly 20.

[0021] Please refer to Figures 1-4 and Figures 6-9 , one end of the front-end drive assembly 2 close to the outside of the drill rod 7 is provided with a protective cover 4. The mounting rod 11 is fixedly connected to one end of the protective cover 4. A dust collection mechanism 6 is connected to the outside of the protective cover 4 and the mounting rod 11. The dust collection mechanism 6 includes a connecting cover 601 fixedly welded to the protective cover 4. An air inlet groove 26 is opened inside the connecting cover 601. A separation cylinder 603 is connected to the through port of the connecting cover 601 through a diversion hose 602. A dust collection cylinder 604 is threadedly sleeved at the bottom end of the separation cylinder 603. A top cover 19 is threadedly sleeved at the top end of the separation cylinder 603. One side of the top cover 19 is connected with a circular cover 606 through an air outlet hose 605. One side of the circular cover 606 is fixedly connected to the hammer drill body 1. A micro negative pressure fan 21 is installed on the outer wall of the hammer drill body 1 close to the inner cavity of the circular cover 606 through a bearing. One end of the micro negative pressure fan 21 close to the inner cavity of the hammer drill body 1 is fixedly connected with a gear 25. A motor 23 is fixedly installed in the inner cavity of the hammer drill body 1. The motor 23 is connected with a drive shaft 22 through a coupling above. A toothed disc 24 is fixedly sleeved on the outside of the drive shaft 22. The opening of the air inlet groove 26 is located on the inner wall of the protective cover 4. The toothed disc 24 is meshed with the gear 25. An air outlet 31 is opened at the top of the separation cylinder 603 close to the top cover 19. A filter plate 30 is arranged above the air outlet 31 close to the inside of the top cover 19. Cross bars are arranged at equal intervals in the air inlet groove 26. The dust collection cylinder 604 is made of polyethylene. Through holes are annularly arranged inside the circular cover 606. Concave openings are arranged on both sides of the protective cover 4. The protective cover 4 is made of a transparent material.

[0022] During specific implementation, before the drill pipe 7 drills and chisels, the protective cover 4 is installed outside the drill pipe 7 through bolts and the mounting rod 11, and the notches on both sides of the protective cover 4 are stuck on the outside of the docking rod 16. During operation, the motor 23 drives the central drive assembly 20 to operate through the drive shaft 22. The central drive assembly 20 drives the drill pipe 7 to rotate and impact. The protective cover 4 blocks the flying fine dust, so that the fine dust does not directly contact the mouth and nose of the staff. At the same time, the motor 23 drives the gear disk 24 to rotate through the drive shaft 22. The gear disk 24 is meshed with the gear 25, and the gear 25 drives the micro negative pressure fan 21 to rotate rapidly. The micro negative pressure fan 21 generates negative pressure through rotation. Since the air inlet of the circular cover 606 is connected to the top cover 19 through a hose, negative pressure is generated inside the top cover 19. Furthermore, the internal environment of the separation cylinder 603 is also in a negative pressure state. The fine dust blocked in the protective cover 4 enters the diversion hose 602 from the air inlet groove 26 due to the suction of negative pressure. The air inlet groove 26 is provided with cross bars distributed at equal intervals, which can prevent larger stones from falling into the air inlet groove 26. Finally, the air flow carries the fine dust into the separation cylinder 603. Since the separation cylinder 603 is set as an inverted conical structure, it helps to settle larger particulate matters to the bottom by relying on gravity and air flow. The air flow decelerates and forms a vortex in the separation cylinder 603, and the fine dust particulate matters fall into the dust collection cylinder 604 at the bottom. The material of the dust collection cylinder 604 is polyethylene, which has a certain electrostatic adsorption property and can adsorb the falling fine dust. Then, the air flow carries a small part of the dust and rises to enter the top cover 19 from the air outlet 31. At the same time, the filter plate 30 filters and blocks the dust again. Finally, the air flow reaches the circular cover 606 through the air outlet hose 605 and is discharged from the through hole of the circular cover 606 or the gap between the circular cover 606 and the electric hammer body 1. The protective cover 4 can effectively prevent the dust from directly contacting the mouth and nose of the staff. The dust collection mechanism 6 can adsorb and collect the flying dust in the protective cover 4, avoiding the staff from inhaling dust for a long time, affecting their own health, and improving the practicability of the electric hammer.

[0023] Please refer to Figures 1-7 and Figure 9 As shown in FIGS. 7 and 8, a fixed ring 17 is fixedly sleeved on the outer wall of the drill pipe 7. Docking rods 16 are fixed on the outer shells on both sides of the front-end drive assembly 2, and the docking rods 16 are slidably sleeved between the two sides of the protective cover 4. A rubber folding ring 5 is fixedly pasted at one end of the protective cover 4 close to the drill pipe 7. A sleeve ring 14 is installed on one side of the fixed ring 17 through a bolt. A ring-shaped distributed scraper 15 is connected to the outside of the sleeve ring 14. The mounting rod 11 is connected to the electric hammer body 1 through a bolt. The sleeve ring 14 is movably sleeved on the drill pipe 7.

[0024] During specific implementation, the protective cover 4 is connected to the electric hammer body 1 through the mounting rod 11. At the same time, both the dust collection cylinder 604 and the top cover 19 are threadedly sleeved with the separation cylinder 603, which facilitates the installation and disassembly of the protective cover 4, the dust collection cylinder 604, and the top cover 19. While the protective cover 4 is used to block dust, the protective cover 4 is made of a transparent material, which is convenient for the staff to view the drilling situation. Due to a large amount of dust, some dust will adhere to the inner wall of the protective cover 4, affecting the observation. The collar 14 can be sleeved on the outside of the drill rod 7 and connected to the fixed ring 17 through bolts. Subsequently, while the dust collection mechanism 6 and the drill rod 7 are working, the rotation of the drill rod 7 drives the rotation of the scraper 15, and the scraper 15 scrapes off the dust on the inner wall of the protective cover 4, preventing the dust from adhering to the inner wall of the protective cover 4 for a long time. The length of the protective cover 4 is less than the length of the drill rod 7. The rubber folding ring 5 is provided to facilitate the telescopic drilling of the drill rod 7 while always blocking at the drilled position, preventing gravel from splashing or dust from flying out, and cooperating with the dust collection mechanism 6, which can effectively improve the dust collection efficiency and avoid damage to the staff caused by gravel, thus improving the safety of the electric hammer.

[0025] Please refer to Figure 1 、 Figure 2 、 Figure 4 and Figures 6-9 As shown in, both sides of the mounting rod 11 are fixedly connected with L-shaped plates 8. Both sides of the separation cylinder 603 are fixedly connected with rotating shafts 13, and the rotating shafts 13 are connected to the L-shaped plates 8 through bearings. A telescopic groove 27 is opened inside the rotating shaft 13. A limiting rod 12 is slidably sleeved inside the telescopic groove 27, and the limiting rod 12 slidably penetrates through the inside of the L-shaped plate 8. A return spring 28 is movably sleeved at one end of the limiting rod 12 close to the inside of the telescopic groove 27. Plug blocks 29 are fixed at both ends of the limiting rod 12, and limiting holes 18 are opened on the surface of the L-shaped plate 8.

[0026] During specific implementation, when using a rotary hammer, there are working requirements for horizontal drilling or vertical drilling. When the rotary hammer body 1 is in a vertical state, the separation cylinder 603 will be perpendicular to the drilling direction, affecting the dust inside the separation cylinder 603 from falling into the dust collection cylinder 604 for collection. The position of the separation cylinder 603 can be adjusted by pulling the limit rod 12 outward, causing the limit rod 12 to drive the insertion block 29 to disengage from the limit hole 18. At the same time, the limit rod 12 slides in the telescopic groove 27 and compresses the return spring 28. Then, rotate the limit rod 12 clockwise, causing the limit rod 12 to drive the rotating shaft 13 to drive the separation cylinder 603 to rotate, making the separation cylinder 603 tilt. Then release the limit rod 12, allowing the return spring 28 to rebound and drive the limit rod 12 to contract. At the same time, the limit rod 12 drives the insertion block 29 to insert into another limit hole 18 to limit the position of the limit rod 12, thereby restricting the position of the separation cylinder 603. The inclination of the separation cylinder 603 enables dust to slide from the separation cylinder 603 into the dust collection cylinder 604 even when the rotary hammer is in a vertical state, and the adjustment process is convenient to operate.

[0027] Please refer to Figures 1-3 and Figure 10 As shown in, an anti - detachment mechanism 9 is provided inside the handle 3. The anti - detachment mechanism 9 includes a sliding groove 901 opened inside the handle 3. A round rod 903 is slidably sleeved inside the sliding groove 901. One end of the round rod 903 close to the outside of the handle 3 is connected to a finger pressing plate 10. A support spring 902 is movably sleeved at one end of the round rod 903 close to the sliding groove 901. A rubber pad is pasted on the inner side of the finger pressing plate 10.

[0028] During specific implementation, when a worker grasps the handle 3 of the rotary hammer, the fingers are prone to unstable grasping, resulting in slipping and dropping the tool. When grasping the handle 3, the four fingers can pass through the gap between the finger pressing plate 10 and the inner wall of the handle 3. By the pulling force of the fingers, the finger pressing plate 10 is driven to move. At the same time, the finger pressing plate 10 drives the round rods 903 at both ends to slide in the sliding groove 901, and the round rods 903 squeeze the support spring 902 against the inner wall of the sliding groove 901, causing the support spring 902 to contract. After the fingers are fully grasped outside the handle 3, the support spring 902 rebounds and drives the round rods 903 to slide in the sliding groove 901. Finally, the round rods 903 drive the inner side of the finger pressing plate 10 to press against the fingers. The rubber pad can protect the fingers from being injured by the finger pressing plate 10. The finger pressing plate 10 can reduce the probability of unstable grasping and slipping, improving the stability of the rotary hammer.

[0029] In summary, when using the electric hammer capable of efficiently collecting dust, first install the protective cover 4 on the outside of the drill rod 7 through bolts. During drilling, the motor 23 drives the central drive assembly 20 to operate through the drive shaft 22, and through a series of transmissions, the front-end drive assembly 2 drives the drill rod 7 to rotate or impact. The protective cover 4 and the rubber folding ring 5 block gravel and dust, preventing gravel from splashing and dust from scattering everywhere. At the same time, the motor 23 drives the dust collection mechanism 6 to adsorb and collect dust through the gear 25 and the gear disc 24. The dust collection mechanism 6 shares a motor 23 with the electric hammer itself, which can reduce power consumption. When the drill rod 7 rotates, it can drive the scraper 15 to scrape off the dust on the inner wall of the protective cover 4, preventing dust from affecting the operator's vision. When grasping the handle 3, the anti-slip mechanism 9 can increase the friction force, improving the practicability, safety and stability of the electric hammer. The content not described in detail in this specification belongs to the prior art well-known to those skilled in the art.

[0030] Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. An electric hammer capable of efficiently collecting dust and ash, comprising an electric hammer body (1) and a mounting rod (11), one side of the electric hammer body (1) being connected to a front end drive assembly (2), and the other side of the electric hammer body (1) being fixedly connected to a handle (3), characterized in that: A drill rod (7) is mounted on one end of the front end drive assembly (2) away from the electric hammer body (1); a protective cover (4) is mounted on one end of the front end drive assembly (2) close to the outside of the drill rod (7); the mounting rod (11) is fixedly connected to one end of the protective cover (4); the outsides of the protective cover (4) and the mounting rod (11) are connected to a dust collecting mechanism (6); the dust collecting mechanism (6) comprises a connecting cover (601) fixedly welded to the protective cover (4); an air inlet groove (26) is formed on the inner side of the connecting cover (601); a separation cylinder (603) is connected to the opening of the connecting cover (601) via a guide hose (602); a dust collecting cylinder (604) is threadedly sleeved on the bottom end of the separating cylinder (603); and a dust collecting cylinder (604) is threadedly sleeved on the top end of the separating cylinder (603). A top cover (19) is sleeved with a thread, one side of the top cover (19) is connected to a circular cover (606) via an air outlet hose (605), one side of the circular cover (606) is fixedly connected to the electric hammer body (1), a micro negative pressure fan (21) is mounted on the outer wall of the electric hammer body (1) close to the inner cavity of the circular cover (606) via a bearing, one end of the micro negative pressure fan (21) close to the inner cavity of the electric hammer body (1) is fixedly connected to a gear (25), a motor (23) is fixedly mounted in the inner cavity of the electric hammer body (1), a driving shaft (22) is connected to the upper side of the motor (23) via a coupling, a toothed disc (24) is fixedly sleeved on the outer side of the driving shaft (22), and a fixed ring (17) is fixedly sleeved on the outer wall of the drill rod (7).

2. The electric hammer capable of efficiently collecting dust and ash according to claim 1, characterized in that: A docking rod (16) is fixed to both side shells of the front end drive assembly (2), and the docking rod (16) is slidably sleeved to both sides of the protective cover (4). A rubber folding ring (5) is fixedly attached to one end of the protective cover (4) close to the drill rod (7).

3. The electric hammer capable of efficiently collecting dust and ash according to claim 1, characterized in that: A collar (14) is mounted on one side of the fixed circular ring (17) via bolts, and an annularly distributed scraper (15) is connected to the outside of the collar (14), and the mounting rod (11) is connected to the electric hammer body (1) via bolts.

4. The electric hammer capable of efficiently collecting dust and ash according to claim 1, characterized in that: The opening of the air inlet slot (26) is located on the inner wall of the protective cover (4), the top end of the drive shaft (22) is connected to a central drive assembly (20), and the toothed disc (24) and the gear (25) are meshingly connected.

5. The electric hammer capable of efficiently collecting dust and ash according to claim 3, characterized in that: The collar (14) and the drill rod (7) are movably sleeved, L-shaped plates (8) are fixedly connected to both sides of the mounting rod (11), and a rotating shaft (13) is fixedly connected to both sides of the separation cylinder (603), and the rotating shaft (13) and the L-shaped plate (8) are connected via a bearing.

6. The electric hammer capable of efficiently collecting dust and ash according to claim 5, characterized in that: A telescopic slot (27) is provided inside the rotating shaft (13), a limiting rod (12) is slidably sleeved on the inner side of the telescopic slot (27), and the limiting rod (12) slidably penetrates the inner side of the L-shaped plate (8).

7. The electric hammer capable of efficiently collecting dust and ash according to claim 6, characterized in that: A return spring (28) is movably sleeved on one end of the limit rod (12) close to the inside of the telescopic slot (27), plug blocks (29) are fixed to both ends of the limit rod (12), and a limit hole (18) is provided on the surface of the L-shaped plate (8).

8. The electric hammer capable of efficiently collecting dust and ash according to claim 1, characterized in that: The separation cylinder (603) is provided with an air outlet (31) at the top near the top cover (19), and a filter plate (30) is provided above the air outlet (31) near the inner side of the top cover (19).

9. The electric hammer capable of efficiently collecting dust and ash according to claim 1, characterized in that: An anti-slip mechanism (9) is provided on the inner side of the handle (3), and the anti-slip mechanism (9) comprises a slide groove (901) provided inside the handle (3), and a round rod (903) is slidably sleeved inside the slide groove (901).

10. The electric hammer capable of efficiently collecting dust and ash according to claim 9, characterized in that: One end of the round rod (903) close to the outside of the handle (3) is connected to the finger pressure plate (10), and one end of the round rod (903) close to the slide groove (901) is movably sleeved with a support spring (902).

Citation Information

Patent Citations

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