Electric drill bit protection structure

Abstract

The utility model provides an electric drill bit protection structure which comprises an electric drill, a movable sleeve connected to the output end of the electric drill, a dust cover connected to the center of the movable sleeve, a protection cover connected to the tail end of the dust cover, a fixed sleeve connected to the tail end of the movable sleeve, a protection cover connected to the tail end of the fixed sleeve, and the fixed sleeve and the protection cover are connected through a connecting assembly. Reset assemblies are arranged in the fixed sleeve and the movable sleeve. According to the protection structure for the drill bit of the electric drill, by arranging the structures such as the hollow hemispherical protection cover, the connecting assembly and the reset assembly, the effects that the electric drill can conduct inclined hole drilling operation, and the position of the protection cover is automatically recovered after hole drilling is completed are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of drill bit protection structures, and more specifically to an electric drill bit protection structure. Background Art

[0002] An electric drill is a drilling tool that uses electricity as power. It is a conventional product among power tools and is also the power tool product with the greatest demand. The working principle of an electric drill is that the motor rotor of an electromagnetic rotary or electromagnetic reciprocating small-capacity electric motor performs magnetic field cutting and power operation, and drives the operating device through a transmission mechanism, which drives the gears to increase the power of the drill bit, so that the drill bit can scrape the surface of the object and penetrate the object better. It is widely used in the reinforcement of building beams, plates, columns, walls, etc., decoration, wall installation, brackets, railings, billboards, air-conditioning outdoor units, guide rails, satellite receivers, elevators, steel structure workshops, etc. However, in the prior art, the drill bit may slip or break due to improper force application, and the safety is low. In addition, the drill bit in the prior art may generate dust and noise when working, affecting the working environment.

[0003] In view of the above problems, regarding the technical problems of safety protection and dust removal and noise reduction when the electric drill is working, after a lot of searches, a patent number of CN217225433U2 was found, which relates to the technical field of drill bit protection structure, including a protective cover, a sealing ring is fixedly connected to the inner wall surface of the protective cover, a telescopic cover is sleeved on the outer surface of the protective cover, and two slide grooves are equidistantly provided on the inner wall surface of the telescopic cover. In the utility model, the protective cover is sleeved on the outer surface of the electric drill, and the sealing ring fills the gap between the electric drill and the protective cover to provide support for the protective cover. Then the electric drill bit is aligned with the drilling surface, and one side surface of the telescopic cover is fitted with the drilling surface to push the electric drill, and the drill bit rotates on the drilling surface. When the electric drill approaches the drilling surface, the protective cover moves inside the telescopic cover, and two limit blocks move inside the two slide grooves to limit the travel of the protective cover inside the telescopic cover to prevent the protective cover from detaching from the inside of the telescopic cover. The protective cover and the telescopic cover effectively prevent the drill bit from slipping or breaking, thereby improving the safety during use. However, the technical solution provided by the patent has the following problems:

[0004] (1) During the use of the electric drill, an oblique hole drilling operation will be performed. However, the device can only perform drilling work perpendicular to the working surface, and cannot drill oblique holes;

[0005] (2) After the holes are punched, the compressed telescopic cover cannot automatically return to its original state, and the telescopic cover needs to be pulled out manually, which will cause great inconvenience when multiple holes need to be punched.

[0006] The utility model can enable the electric drill to perform an oblique hole drilling operation and automatically restore the position of the protective cover after the hole drilling is completed. Utility Model Content

[0007] The utility model aims to solve the technical problems raised by the above-mentioned background technology and provides an electric drill bit protection structure, which can achieve the effect of enabling the electric drill to perform oblique hole drilling operation and automatically restore the position of the protection cover after drilling the hole.

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an electric drill bit protection structure, comprising: an electric drill, wherein the output end of the electric drill is connected to a movable sleeve, the center of the movable sleeve is connected to a dust cover, the tail end of the dust cover is connected to a protective cover, the tail end of the movable sleeve is connected to a fixed sleeve, the tail end of the fixed sleeve is connected to a protective cover, the fixed sleeve and the protective cover are connected by a connecting component, and a reset component is arranged in the fixed sleeve and the movable sleeve.

[0009] A further preferred solution is that the protective cover is hollow hemispherical inside, and the top and bottom ends of the protective cover are respectively connected to an air inlet pipe and an exhaust pipe, a one-way valve is arranged in the air inlet pipe, and the exhaust pipe is connected to the output end of the vacuum cleaner.

[0010] A further preferred solution is that the rear end of the movable sleeve is further connected to a first limiting ring, the inner wall of the movable sleeve is connected to a second limiting ring, and the reset assembly is arranged within the distance between the first limiting ring and the second limiting ring.

[0011] A further preferred solution is that a slide groove is provided inside the fixing sleeve, the depth of the top end of the slide groove is three quarters of the wall thickness of the fixing sleeve, and the depth of the tail end of the slide groove is one quarter of the wall thickness of the fixing sleeve.

[0012] A further preferred solution: the reset component includes: an elastic ring and a slider, there are four sliders, the four sliders are evenly arranged on the elastic ring, the elastic ring is connected to the inner wall of the movable sleeve, four holes matching the sliders are opened on the movable sleeve, the sliders are arranged in the holes of the movable sleeve, and the sliders match the sliding grooves of the fixed sleeve.

[0013] A further preferred solution: the connecting assembly includes: a fixed ring, a first movable ring, a first connecting rod, a second connecting rod and a second movable ring. A connecting groove is opened at the right end of the protective cover, the inner wall of the connecting groove is connected to the fixed ring, the inner wall of the fixed ring is connected to the first connecting rod, the tail end of the first connecting rod is connected to the first movable ring, the inner wall of the first movable ring is connected to the second connecting rod, the tail end of the second connecting rod is connected to the second movable ring, and the top of the first movable ring is connected to a fixed sleeve.

[0014] A further preferred solution is that the first connecting rod and the second connecting rod are perpendicular to each other in space, and the foot of the perpendicular is located at the center of the fixed ring.

[0015] Beneficial effects:

[0016] 1. By setting the protective cover to have a hollow hemispherical shape inside, the drill bit can move freely inside the protective cover; by making the first connecting rod and the second connecting rod perpendicular to each other and the foot of the vertical rod located at the center of the fixed ring, the fixed sleeve can rotate freely.

[0017] 2. By setting the depths of the two ends of the fixed sleeve slide groove differently, the protective cover can be automatically reset after drilling in cooperation with the reset component; by setting four sliders, the elastic ring can be evenly stressed;

[0018] 4. In summary, this electric drill bit protection structure, by providing an internal hollow hemispherical protective cover, a connecting component and a reset component and other structures, can achieve the effect of enabling the electric drill to perform an oblique hole drilling operation and automatically restore the position of the protective cover after drilling. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall explosion structure of the utility model.

[0020] Figure 2 It is a schematic diagram of the overall structure of the utility model.

[0021] Figure 3 It is a schematic diagram of the structure of the connection component of the utility model.

[0022] Figure 4 It is a schematic diagram of the three-dimensional structure of the connection component of the utility model.

[0023] Figure 5 It is a schematic cross-sectional structure diagram of the movable sleeve and the fixed sleeve of the utility model.

[0024] Figure 6 This is a schematic diagram of the protective cover structure of the utility model.

[0025] Figure 7 It is a schematic diagram of the structure of the reset component of the utility model.

[0026] Figure 1-7 In: 1. Protective cover; 2. Connecting assembly; 3. Fixed sleeve; 4. Dust cover; 5. First limiting ring; 6. Reset assembly; 7. Second limiting ring; 8. Movable sleeve; 9. Exhaust pipe; 10. Inlet pipe; 11. Electric drill; 201. Fixed ring; 202. First movable ring; 203. First connecting rod; 204. Second connecting rod; 205. Second movable ring; 601. Elastic ring; 602. Slider. DETAILED DESCRIPTION

[0027] The following will be combined with the attached embodiment of the present utility model Figure 1-Figure 7 , clearly and completely describe the technical solutions in the embodiments of the utility model.

[0028] See also Figure 1-7 In an embodiment of the utility model, an electric drill bit protection structure includes: an electric drill 11, an output end of the electric drill 11 is connected to a movable sleeve 8, a dust cover 4 is connected to the center of the movable sleeve 8, a protective cover 1 is connected to the tail end of the dust cover 4, a fixed sleeve 3 is connected to the tail end of the movable sleeve 8, and the protective cover 1 is connected to the tail end of the fixed sleeve 3. The fixed sleeve 3 and the protective cover 1 are connected through a connecting component 2, and a reset component 6 is arranged in the fixed sleeve 3 and the movable sleeve 8.

[0029] In the embodiment of the utility model, the protective cover 1 is hollow hemispherical inside, and the top and bottom ends of the protective cover 1 are respectively connected to the air inlet pipe 10 and the exhaust pipe 9, a one-way valve is arranged in the air inlet pipe 10, and the exhaust pipe 9 is connected to the output end of the vacuum cleaner; by setting the protective cover 1 to be hollow hemispherical inside, the drill bit can move freely in the protective cover 1; the dust generated during drilling is sucked away through the air inlet pipe 10 and the exhaust pipe 9, thereby achieving a dust-proof effect.

[0030] In the embodiment of the utility model, the tail end of the movable sleeve 8 is also connected to the first limiting ring 5, the inner wall of the movable sleeve 8 is connected to the second limiting ring 7, and the reset component 6 is arranged in the distance between the first limiting ring 5 and the second limiting ring 7; through the first limiting ring 5 and the second limiting ring 7, the effect of limiting the position of the reset component 6 is achieved.

[0031] In the embodiment of the utility model, a slide groove is opened inside the fixed sleeve 3, the depth of the top end of the slide groove is three quarters of the wall thickness of the fixed sleeve 3, and the depth of the tail end of the slide groove is one quarter of the wall thickness of the fixed sleeve 3; by setting the depths of the two ends of the slide groove differently, the effect of automatic reset of the protective cover 1 after punching in cooperation with the reset component 6 is achieved.

[0032] In the embodiment of the utility model, the reset component 6 includes: an elastic ring 601 and a slider 602, there are four sliders 602, the four sliders 602 are evenly arranged on the elastic ring 601, the elastic ring 601 is connected to the inner wall of the movable sleeve 8, four holes are opened on the movable sleeve 8 to fit with the slider 602, the slider 602 is arranged in the holes of the movable sleeve 8, and the slider 602 fits with the slide groove of the fixed sleeve 3; by providing four sliders 602, the elastic ring 601 is evenly stressed; by the elastic ring 60 1 and the slider 602, so as to achieve the effect of automatically resetting the protective cover 1 after drilling; during the drilling process, pushing the electric drill 11 forward to drill a hole will push the movable sleeve 8 forward, and because the rear end of the fixed sleeve 3 is shallow, the slider 602 will be compressed inward, thereby compressing the elastic ring 601. After the drilling is completed, the compressed elastic ring 601 will give the slider 602 an outward thrust. Because the top end of the fixed sleeve 3 is deep, the thrust of the slider 602 will cause the movable sleeve 8 to move toward the top, thereby restoring the protective cover 1 to its original position.

[0033] In an embodiment of the utility model, an electric drill bit protection structure is characterized in that: the connecting component 2 includes: a fixed ring 201, a first movable ring 202, a first connecting rod 203, a second connecting rod 204 and a second movable ring 205, a connecting groove is opened at the right end of the protective cover 1, the inner wall of the connecting groove is connected to the fixed ring 201, the inner wall of the fixed ring 201 is connected to the first connecting rod 203, the tail end of the first connecting rod 203 is connected to the first movable ring 202, the inner wall of the first movable ring 202 is connected to the second connecting rod 204, the tail end of the second connecting rod 204 is connected to the second movable ring 205, and the top end of the first movable ring 202 is connected to the fixed sleeve 3; the fixed ring 201, the first movable ring 202 and the second movable ring 205 cooperate with each other to achieve the effect of connecting the protective cover 1 and the fixed sleeve 3.

[0034] In the embodiment of the utility model, the first connecting rod 203 and the second connecting rod 204 are perpendicular to each other in space, and the foot of the perpendicular is located at the center of the fixing ring 201; by the first connecting rod 203 and the second connecting rod 204 being perpendicular to each other and the foot of the perpendicular is located at the center of the fixing ring 201, the effect of allowing the fixing sleeve 3 to rotate freely is achieved.

[0035] Working principle: when it is necessary to use the electric drill 11 to drill a hole, first connect the electric drill 11 to the movable sleeve 8, and aim the electric drill at the position where the hole needs to be drilled. Because the first connecting rod 203 and the second connecting rod 204 are perpendicular to each other and the vertical foot is located on the center of the fixed ring 201, the fixed sleeve 3 can rotate freely, and the protective cover 1 is an internal hollow hemispherical shape, and the drill bit can move freely in the protective cover 1; then the drilling operation is carried out, and the vacuum cleaner is turned on at this time, and the vacuum cleaner will suck away the dust generated during the drilling; during the drilling process, pushing the electric drill 11 forward to drill a hole will push the movable sleeve 8 forward, and because the depth of the rear end of the fixed sleeve 3 is shallow, the slider 602 will be compressed inward, thereby compressing the elastic ring 601. After the drilling is completed, the compressed elastic ring 601 will give the slider 602 an outward thrust. Because the top of the fixed sleeve 3 is deep, the thrust of the slider 602 will cause the movable sleeve 8 to move toward the top, thereby restoring the protective cover 1 to its original position.

Claims

1. An electric drill bit protection structure, comprising: An electric drill (11) is characterized in that: the output end of the electric drill (11) is connected to a movable sleeve (8), the center of the movable sleeve (8) is connected to a dust cover (4), the tail end of the dust cover (4) is connected to a protective cover (1), the tail end of the movable sleeve (8) is connected to a fixed sleeve (3), the tail end of the fixed sleeve (3) is connected to the protective cover (1), the fixed sleeve (3) and the protective cover (1) are connected via a connecting component (2), and a reset component (6) is arranged inside the fixed sleeve (3) and the movable sleeve (8).

2. The electric drill bit protection structure according to claim 1, characterized in that: The protective cover (1) is in the shape of a hollow hemispherical interior. The top and bottom ends of the protective cover (1) are respectively connected to an air inlet pipe (10) and an exhaust pipe (9). A one-way valve is arranged in the air inlet pipe (10), and the exhaust pipe (9) is connected to the output end of the vacuum cleaner.

3. The electric drill bit protection structure according to claim 1, characterized in that: The rear end of the movable sleeve (8) is also connected to a first limiting ring (5), the inner wall of the movable sleeve (8) is connected to a second limiting ring (7), and the reset component (6) is arranged in the distance between the first limiting ring (5) and the second limiting ring (7).

4. The electric drill bit protection structure according to claim 1, characterized in that: The fixing sleeve (3) is provided with a slide groove inside, the top end of the slide groove has a depth of three quarters of the wall thickness of the fixing sleeve (3), and the rear end of the slide groove has a depth of one quarter of the wall thickness of the fixing sleeve (3).

5. The electric drill bit protection structure according to claim 4, characterized in that: The reset assembly (6) comprises: an elastic ring (601) and a slider (602). There are four sliders (602). The four sliders (602) are evenly arranged on the elastic ring (601). The elastic ring (601) is connected to the inner wall of the movable sleeve (8). The rear end of the movable sleeve (8) is provided with four holes that fit with the sliders (602). The sliders (602) are arranged in the holes of the movable sleeve (8). The sliders (602) fit with the sliding grooves of the fixed sleeve (3).

6. The electric drill bit protection structure according to claim 1, characterized in that: The connecting assembly (2) comprises: a fixed ring (201), a first movable ring (202), a first connecting rod (203), a second connecting rod (204) and a second movable ring (205); a connecting groove is provided at the right end of the protective cover (1); the inner wall of the connecting groove is connected to the fixed ring (201); the inner wall of the fixed ring (201) is connected to the first connecting rod (203); the tail end of the first connecting rod (203) is connected to the first movable ring (202); the inner wall of the first movable ring (202) is connected to the second connecting rod (204); the tail end of the second connecting rod (204) is connected to the second movable ring (205); and the top end of the first movable ring (202) is connected to the fixing sleeve (3).

7. The electric drill bit protection structure according to claim 6, characterized in that: The first connecting rod (203) and the second connecting rod (204) are perpendicular to each other, and the foot of the perpendicular is located at the center of the fixed ring (201).

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