Dustproof punching device for wall

Abstract

The utility model belongs to the technical field of punching devices, and particularly relates to a wall dustproof punching device. Comprising a drillstock, a first drill bit is arranged at one end of the drillstock, and limiting sliding grooves are symmetrically formed in the drillstock; the punching mechanism is used for driving the drill handle to rotate; the sliding sleeve is arranged on the drill handle in a sleeving mode, and two limiting convex parts are symmetrically arranged on the inner circumferential wall of the sliding sleeve and are arranged on the limiting sliding grooves in a sliding mode; the dust collection fan is arranged on the sliding sleeve; the tail end of the dustproof cover is rotationally connected to the sliding sleeve; the spring is sleeved on the drill handle; wherein an exhaust channel is formed in the dust cover, a containing cavity communicated with the exhaust channel is further formed in the dust cover, the dust collection fan is arranged in the containing cavity, and a filter screen is arranged on the air inlet hole; the dust collection fan is arranged in the dust cover, and the drill handle rotates to drive the dust collection fan to rotate, so that fine dust particles generated after drilling of the first drill bit are sucked into the dust cover, and the fine dust particles are filtered through the filter screen.

Description

Technical Field

[0001] The utility model belongs to the technical field of punching devices, and in particular relates to a wall dust-proof punching device. Background Art

[0002] Wall punching devices are mainly used for drilling holes on wall surfaces. The chips generated during the drilling process mainly rely on gravity to fall naturally. Although this can reduce some of the flying dust, it may not be able to completely and effectively collect or control fine dust particles. Dust may still leak into the working environment and affect the air quality.

[0003] In the prior art, a dust cover is usually put on the drill bit of the drilling device to collect dust. However, due to the poor sealing of the dust cover or factors such as vibration during operation, fine dust particles will escape, affecting the air quality and resulting in poor dust collection effect after drilling. Utility Model Content

[0004] The purpose of the utility model is to provide a wall dust-proof punching device in response to the above-mentioned technical problems. The device ensures that the open end of the dust cover contacts the wall surface through the elastic force of the spring to prevent chips from falling out. A dust suction fan is arranged in the dust cover, and the rotation of the drill handle drives the dust suction fan to rotate, so that negative pressure is generated in the exhaust channel and the accommodating chamber, thereby sucking the fine dust particles generated after the first drill bit drills a hole into the dust cover, and filtering these fine dusts through the filter screen, thereby further improving the dust-proof effect.

[0005] In view of this, the utility model provides a wall dust-proof punching device, comprising:

[0006] A drill shank, one end of which is provided with a first drill bit, and a limit slide groove is symmetrically provided on the drill shank;

[0007] A punching mechanism, the other end of the drill shank being arranged on the punching mechanism, and the punching mechanism being used to drive the drill shank to rotate;

[0008] The sliding sleeve is sleeved on the drill shank, and the inner circumferential wall of the sliding sleeve is symmetrically provided with two limiting protrusions, the limiting protrusions are slidably provided on the limiting sliding groove, and a limiting protrusion ring is provided on the sliding sleeve;

[0009] A dust suction fan is provided on the sliding sleeve;

[0010] The dust cover comprises an opening end and a tail end, wherein the tail end is rotatably connected to the sliding sleeve, and the dust cover is arranged on the first drill bit and the dust suction fan;

[0011] The spring is sleeved on the drill handle, and the two ends of the spring respectively contact the dust cover and the punching mechanism;

[0012] Among them, the dust cover is provided with an exhaust channel, the dust cover is also provided with an accommodating chamber connected to the exhaust channel, the dust suction fan is provided in the accommodating chamber, the dust cover is also provided with an exhaust hole connected to the accommodating chamber and an air inlet hole close to the opening end and connected to the exhaust channel, a filter is provided on the air inlet hole, and a limiting portion for limiting the sliding distance of the sliding sleeve is provided on one end of the drill shank close to the first drill bit, and the two sides of the limiting convex ring respectively abut against the rear end of the dust cover and the dust suction fan.

[0013] In the above solution, further, the dust cover is provided with a dust collecting groove, and the dust collecting groove is conical, the dust collecting groove is provided with a discharge hole, and the discharge hole is threadedly connected to a bottom cover.

[0014] In the above solution, further, the dust cover is made of transparent material.

[0015] In the above solution, further, a guide rod is provided on the dust cover, a through hole is provided on the punching mechanism, and the guide rod is slidably provided on the through hole.

[0016] In the above scheme, further, the first drill bit is detachably arranged on the drill shank, the first drill bit has a spiral structure, the drill shank is also detachably provided with a second drill bit, the second drill bit has a cylindrical structure, and the second drill bit cover is arranged on the first drill bit.

[0017] In the above solution, further, the dust cover and the sliding sleeve are connected via a bearing.

[0018] In the above solution, further, an elastic sealing ring is provided on the open end.

[0019] The beneficial effects of the utility model are:

[0020] 1. The spring force ensures that the open end of the dust cover contacts the wall surface, preventing chips from falling out. A dust suction fan is installed in the dust cover. The rotation of the drill handle drives the dust suction fan to rotate, creating negative pressure in the exhaust passage and the accommodating chamber. This sucks the fine dust particles generated by the first drill bit into the dust cover and filters these fine dust particles through the filter, further improving the dust prevention effect.

[0021] 2. When a larger hole needs to be drilled, a second drill bit can be installed on the drill shank. The first drill bit is used to position the hole, and the second drill bit is used to drill the hole. Both the first drill bit and the second drill bit can be detachably installed on the drill shank, making it easy to replace the second drill bit when the drill bit is damaged or when the hole size needs to be changed.

[0022] 3. By arranging an elastic sealing ring on the open end, the elastic sealing ring has elasticity and can also achieve a sealing effect and reduce the risk of scratches on the wall. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0024] Figure 2 It is a schematic diagram of the explosion structure of the utility model;

[0025] Figure 3 It is a partial cross-sectional structural schematic diagram of the utility model;

[0026] Figure 4 This utility model Figure 3 Schematic diagram of the structure at A.

[0027] The marks in the figure are:

[0028] 1. Drill shank; 2. Punching mechanism; 3. Sliding sleeve; 4. Dust suction fan; 5. Dust cover; 6. Spring; 7. First drill bit; 8. Limiting slide groove; 9. Limiting convex part; 10. Limiting convex ring; 11. Exhaust channel; 12. Accommodating chamber; 13. Exhaust hole; 14. Air inlet hole; 15. Filter; 16. Limiting part; 17. Dust collecting trough; 18. Discharge hole; 19. Bottom cover; 20. Guide rod; 21. Bearing; 22. Second drill bit; 23. Elastic sealing ring. DETAILED DESCRIPTION

[0029] The following will be combined with the accompanying drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field are within the scope of protection of this application.

[0030] In the description of this application, it should be noted that the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit the exemplary embodiments according to this application. For ease of description, the dimensions of the various parts shown in the drawings are not drawn according to the actual proportional relationship. Technologies, methods and equipment known to ordinary technicians in the relevant fields may not be discussed in detail, but where appropriate, the technologies, methods and equipment should be considered as part of the authorization specification. In all examples shown and discussed here, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following figures, so once an item is defined in one figure, it does not need to be further discussed in subsequent figures.

[0031] Example 1:

[0032] This embodiment provides a wall dust-proof punching device, comprising:

[0033] A drill shank 1, with a first drill bit 7 provided on one end of the drill shank 1 and limited sliding grooves 8 symmetrically provided on the drill shank 1;

[0034] A punching mechanism 2, the other end of the drill shank 1 is arranged on the punching mechanism 2, and the punching mechanism 2 is used to drive the drill shank 1 to rotate;

[0035] The sliding sleeve 3 is sleeved on the drill shank 1, and two limiting protrusions 9 are symmetrically provided on the inner circumference of the sliding sleeve 3. The limiting protrusions 9 are slidably provided on the limiting sliding groove 8. The sliding sleeve 3 is provided with a limiting protrusion ring 10;

[0036] A dust collecting fan 4 is provided on the sliding sleeve 3;

[0037] The dust cover 5 includes an open end and a tail end, the tail end is rotatably connected to the sliding sleeve 3, and the dust cover 5 is provided on the first drill bit 7 and the dust suction fan 4;

[0038] The spring 6 is sleeved on the drill handle 1, and the two ends of the spring 6 respectively contact the dust cover 5 and the punching mechanism 2;

[0039] Among them, the dust cover 5 is provided with an exhaust channel 11, and the dust cover 5 is also provided with an accommodating chamber 12 connected to the exhaust channel 11, the dust suction fan 4 is provided in the accommodating chamber 12, and the dust cover 5 is also provided with an exhaust hole 13 connected to the accommodating chamber 12 and an air inlet 14 close to the opening end and connected to the exhaust channel 11, and a filter 15 is provided on the air inlet hole 14. A limiting portion 16 for limiting the sliding distance of the sliding sleeve 3 is provided on one end of the drill shank 1 close to the first drill bit 7, and the two sides of the limiting convex ring 10 respectively abut against the tail end of the dust cover 5 and the dust suction fan 4.

[0040] In this technical solution, the punching mechanism 2 can be conventionally used to drive the drill bit to rotate and drill holes in the wall. By starting the punching mechanism 2, the drill handle 1 can be driven to rotate, and then the first drill bit 7 can be driven to rotate, thereby achieving the effect of drilling holes in the wall.

[0041] The limiting groove 8 on the drill shank 1 is opened along the length direction of the drill shank 1, and the sliding sleeve 3 is sleeved on the drill shank 1. By setting the limiting protrusion 9 in the limiting groove 8, the sliding sleeve 3 can slide back and forth along the length direction of the drill shank 1.

[0042] The rear end of the dust cover 5 is rotatably connected to the sliding sleeve 3. A stop collar 10 and the sliding sleeve 3 can be integrally formed. The sides of the stop collar 10 respectively contact the dust suction fan 4 and the rear end of the dust cover 5. The stop collar 10 is used to prevent the dust cover 5 from dislodging from the sliding sleeve 3. A stop portion 16 is used to limit the sliding distance of the sliding sleeve 3, preventing it from dislodging. When the drill shank 1 drives the sliding sleeve 3 and the first drill bit 7 to rotate, the first drill bit 7 gradually drills into the wall. The dust cover 5 does not rotate with the sliding sleeve 3. Instead, the spring 6 causes the dust cover 5 to move along the sliding sleeve 3, ensuring that the open end of the dust cover 5 always contacts the wall. Wall chips produced by the first drill bit 7 after drilling pass through the open end and fall into the dust cover 5, providing a dust-proof effect and preventing air pollution.

[0043] The dust suction fan 4 can be threadedly connected to the sliding sleeve 3. The drill shank 1 drives the sliding sleeve 3 to rotate, thereby driving the dust suction fan 4 to rotate. When the dust suction fan 4 rotates, negative pressure is generated in the accommodating chamber 12, and thus negative pressure is generated in the exhaust passage 11 connected to the accommodating chamber 12. This draws fine dust particles generated by the first drill bit 7 drilling into the dust cover 5. These fine dust particles are then filtered through the filter 15, further improving the dust prevention effect. The filtered air then passes through the exhaust passage 11 and the accommodating chamber 12 and is discharged from the exhaust port.

[0044] The filter 15 is installed near the open end of the dust cover 5 to facilitate removal and replacement of the filter 15. The filter 15 can be made of non-woven fabric and can be supported by a frame. A slot can be provided at the air inlet 14, and the frame can be snapped into the slot to facilitate replacement of the filter 15. The frame can also be fixed to the dust cover 5 with screws, which is not shown in the figure.

[0045] To sum up, the elastic force of the spring 6 ensures that the open end of the dust cover 5 is in contact with the wall surface to prevent chips from falling out. By arranging a dust suction fan 4 in the dust cover 5, the rotation of the drill handle 1 drives the dust suction fan 4 to rotate, so that the exhaust channel 11 and the accommodating chamber 12 generate negative pressure, thereby sucking the fine dust particles generated after the first drill bit 7 drills a hole into the dust cover 5, and filtering these fine dusts through the filter net 15, thereby further improving the dust prevention effect.

[0046] Furthermore, the dust cover 5 is made of transparent material.

[0047] In the present technical solution, the dust cover 5 can be made of a transparent plastic material, which makes it easy to observe the working state inside the dust cover 5 and to facilitate positioning the first drill bit 7 at the position where a hole needs to be drilled.

[0048] Furthermore, the dust cover 5 and the sliding sleeve 3 are connected via a bearing 21 .

[0049] In this technical solution, the bearing 21 can reduce the friction resistance between the sliding sleeve 3 and the dust cover 5 when the sliding sleeve 3 rotates, thereby increasing the service life.

[0050] Example 2:

[0051] This embodiment provides a wall dust-proof punching device, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0052] The dust cover 5 is provided with a dust collecting groove 17 , and the dust collecting groove 17 is conical. The dust collecting groove 17 is provided with a discharge hole 18 , and a bottom cover 19 is threadedly connected to the discharge hole 18 .

[0053] In this technical solution, the dust collecting trough 17 can accommodate more chips, reducing the number of chip cleaning times, and the dust collecting trough 17 is tapered to allow the chips to fall into it smoothly.

[0054] The discharge hole 18 is threadedly connected to the bottom cover 19, which makes it easy to remove the bottom cover 19 to clean the accumulated chips.

[0055] Example 3:

[0056] This embodiment provides a wall dust-proof punching device, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0057] The dust cover 5 is provided with a guide rod 20 , and the punching mechanism 2 is provided with a through hole. The guide rod 20 is slidably provided on the through hole.

[0058] In this technical solution, when the open end of the dust cover 5 does not contact the wall and the drill shank 1 is in a rotating state, the guide rod 20 can prevent the dust cover 5 from rotating with the sliding sleeve 3.

[0059] Example 4:

[0060] This embodiment provides a wall dust-proof punching device, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0061] The first drill bit 7 is detachably arranged on the drill shank 1 , and the first drill bit 7 has a spiral structure. The drill shank 1 is also detachably provided with a second drill bit 22 , which has a cylindrical structure and is covered on the first drill bit 7 .

[0062] In this technical solution, when a larger hole needs to be drilled, the second drill bit 22 can be installed on the drill shank 1, positioned by the first drill bit 7, and the hole can be drilled by the second drill bit 22.

[0063] The first drill bit 7 and the second drill bit 22 are both detachably mounted on the drill shank 1, so as to facilitate replacement of the drill bit when it is damaged or to change the size of the drill hole when the second drill bit 22 is replaced. The second drill bit 22 can be threadedly connected to the drill shank 1.

[0064] Example 5:

[0065] This embodiment provides a wall dust-proof punching device, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0066] An elastic sealing ring 23 is provided on the open end.

[0067] In this technical solution, the elastic sealing ring 23 is elastic and can also provide a good sealing effect and reduce the risk of scratches on the wall.

[0068] The elastic sealing ring 23 can be made of silicone material, which can increase the friction with the wall, thereby improving the stability of the dust cover 5 against the wall.

[0069] The embodiments of the present application are described above in conjunction with the accompanying drawings. Unless there is a conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of this application, ordinary technicians in this field can also make many forms without departing from the purpose of this application and the scope of protection of the claims, all of which are within the protection of this application.

Claims

1. A wall dust-proof punching device, characterized in that: include: A drill shank (1), a first drill bit (7) is provided on one end of the drill shank (1), and a limiting sliding groove (8) is symmetrically provided on the drill shank (1); A punching mechanism (2), wherein the other end of the drill shank (1) is arranged on the punching mechanism (2), and the punching mechanism (2) is used to drive the drill shank (1) to rotate; A sliding sleeve (3) is sleeved on the drill shank (1), and two limiting protrusions (9) are symmetrically provided on the inner peripheral wall of the sliding sleeve (3). The limiting protrusions (9) are slidably provided on the limiting sliding groove (8), and a limiting protruding ring (10) is provided on the sliding sleeve (3); A dust collecting fan (4) is arranged on the sliding sleeve (3); A dust cover (5) includes an open end and a tail end, the tail end being rotatably connected to the sliding sleeve (3), and the dust cover (5) is provided on the first drill bit (7) and the dust suction fan (4); A spring (6) is sleeved on the drill handle (1), and two ends of the spring (6) respectively contact the dust cover (5) and the punching mechanism (2); The dust cover (5) is provided with an exhaust passage (11), and the dust cover (5) is also provided with an accommodating chamber (12) connected to the exhaust passage (11). The dust suction fan (4) is provided in the accommodating chamber (12). The dust cover (5) is also provided with an exhaust hole (13) connected to the accommodating chamber (12) and an air inlet (14) close to the opening end and connected to the exhaust passage (11). A filter (15) is provided on the air inlet (14). A limiting portion (16) for limiting the sliding distance of the sliding sleeve (3) is provided on one end of the drill shank (1) close to the first drill bit (7). The two sides of the limiting convex ring (10) respectively contact the rear end of the dust cover (5) and the dust suction fan (4).

2. A wall dust-proof punching device according to claim 1, characterized in that: The dust cover (5) is provided with a dust collecting groove (17), and the dust collecting groove (17) is tapered. The dust collecting groove (17) is provided with a discharge hole (18), and the discharge hole (18) is threadedly connected with a bottom cover (19).

3. A wall dust-proof punching device according to claim 1, characterized in that: The dust cover (5) is made of transparent material.

4. A wall dust-proof punching device according to claim 1, characterized in that: The dust cover (5) is provided with a guide rod (20), the punching mechanism (2) is provided with a through hole, and the guide rod (20) is slidably provided on the through hole.

5. A wall dust-proof punching device according to claim 1, characterized in that: The first drill bit (7) is detachably arranged on the drill shank (1), and the first drill bit (7) has a spiral structure. The drill shank (1) is also detachably provided with a second drill bit (22), and the second drill bit (22) has a cylindrical structure. The second drill bit (22) is covered on the first drill bit (7).

6. A wall dust-proof punching device according to claim 1, characterized in that: The dust cover (5) and the sliding sleeve (3) are connected via a bearing (21).

7. A wall dust-proof punching device according to claim 1, characterized in that: An elastic sealing ring (23) is provided on the open end.

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