Dust-proof electric drill with dust cover

Abstract

The invention discloses a dustproof electric drill with a dustproof cover, comprising a machine body, a dustproof mechanism and a micro-dust collector. The dustproof mechanism is arranged on one side of a drill head of the machine body, a second movable frame of the dustproof mechanism is slidably mounted above a baffle plate and is in contact with and connected to the baffle plate, the baffle plates are divided into two groups, the distance between the two groups of baffle plates is adjusted by the second movable frame, and the shapes formed by the two groups of baffle plates are adjusted, and the micro-dust collector is fixedly arranged on the machine body; the invention utilizes an adjustable mechanism, utilizes two screws to adjust the size and shape of the dustproof cover, improves its flexibility, and is easy to operate, can adapt to building panels of different sizes, can greatly reduce the probability of dust floating out from the side of the dustproof cover, thereby protecting the respiratory system of the user and reducing the amount of dust in the use environment.

Description

Technical Field

[0001] The invention relates to the technical field of electric tools, in particular to a dustproof electric drill with a dustproof cover. Background Art

[0002] An electric drill is a drilling machine that uses electricity as power. It is a common product among power tools and is also the most in-demand power tool product. It is commonly used in the fields of machinery industry, construction industry and decoration industry. Its main functions are drilling holes, driving screws and removing screws in materials such as plates and walls. When performing the above work, a large amount of dust will be generated, which will affect the user's respiratory system and physical health. In addition, the length, width and shape of the materials used by the electric drill may be different. The traditional fixed-size dust cover cannot flexibly adapt to building materials of different sizes. When facing smaller materials, dust may fly out from the sides of the dust cover, which has poor flexibility and reduced dust prevention effect.

[0003] Therefore, in response to the above problems, the following solutions are proposed. Summary of the invention

[0004] The purpose of the present invention is to provide a dustproof electric drill with a dustproof cover to solve the problems raised in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions: a dustproof electric drill with a dustproof cover, comprising a body, a dustproof mechanism, and a micro-dust collector, wherein the dustproof mechanism is arranged on one side of the drill head of the body, the second movable frame of the dustproof mechanism is slidably mounted above the baffle plate and is in contact with and connected to the baffle plate, the baffle plates are divided into two groups, the distance between the two groups of baffle plates is adjusted by the second movable frame, and the shape formed by the two groups of baffle plates is adjusted, and the micro-dust collector is fixedly arranged on the body;

[0006] The dustproof mechanism comprises: a mounting cover, a first mounting frame, and an upper movable rod. The mounting cover is fixedly mounted on one side of the machine body, a first slide rail is arranged on the inner side of the mounting cover, one end of the first mounting frame is slidably mounted in the first slide rail, the first mounting frame is arranged in the mounting cover, the other end of the first mounting frame is slidably mounted with the mounting cover, the upper surface of the first mounting frame is fixedly connected to one end of the first movable frame, the other end of the first movable frame is slidably mounted on the inner surface of the mounting cover, the first movable frame is slidably mounted on the inner surface end of the mounting cover, a screw hole is arranged, the inner thread of the screw hole is connected to the first screw rod, and the first screw rod is rotatably mounted on the mounting cover;

[0007] The first mounting frame is provided with a screw hole near the first slide rail, the inner thread of the screw hole is connected with a bidirectional screw rod, the bidirectional screw rod does not interfere with the drill bit, the bidirectional screw rod is rotatably mounted in the mounting cover, the other end of the bidirectional screw rod is threadedly connected with the second mounting frame, and the threads on the two sides of the bidirectional screw rod are opposite;

[0008] The cam is connected with the second movable rod by the first sliding groove, and the second movable rod is slidably connected with the second movable rod in the sliding groove, and the first movable rod has one end passing through the first mounting bracket and is fixedly connected with the first connecting rod at one end. The second movable rod has another end slidably connected with the inner surface of the mounting cover, and a screw hole is provided on the upper end of the second movable rod, and the screw hole is threadedly connected with the second screw, and the second screw is rotatably mounted on the mounting cover. The other end of the first connecting rod is fixedly connected with the contact rod, and the contact rod surface is contacted and connected with the first groove inner surface of the upper movable rod. One end of the upper movable rod is rotatably connected with the second connecting rod, and the other end is hinged with the first sliding block. The upper movable rod has two, and the second connecting rod is fixedly connected with the lower surface of the first mounting bracket. The first sliding block is slidably mounted in the second sliding rail, and the surface of the first sliding block is rotatably connected with one end of the first toggle rod, and the second sliding rail is fixedly arranged in the mounting cover.

[0009] The other end of the first toggle rod is fixedly connected to the first mounting pad, the first mounting pad is fixedly mounted on one end of the first rack, the first rack is slidably mounted in the mounting bin, the mounting bin is fixedly mounted on the side of the second slide rail, the first rack is meshed with one side of the gear, the gear is rotatably mounted in the mounting bin, and the other side of the gear is meshed with the second rack, one end of the second rack is fixedly connected to a surface of the second mounting pad, the other end of the second mounting pad is fixedly connected to one end of the second toggle rod, the other end of the second toggle rod is rotatably connected to the side of the second slider, the second slider is slidably mounted in the second slide rail, the second slider is hinged to one end of the lower movable rod, and the other end of the lower movable rod is rotatably connected to one end of the third connecting rod, the third connecting rod is fixedly mounted on the second mounting bracket, the second mounting bracket is fixedly connected to one end of the fourth connecting rod, and the other end of the fourth connecting rod is contacted and connected with the inner surface of the second groove of the lower movable rod.

[0010] Preferably, one end of the dust suction pipe is fixedly connected to the installation outer cover, and the other end of the dust suction pipe is fixedly connected to one side of the micro-vacuum cleaner, and the micro-vacuum cleaner is fixedly arranged on one side of the machine body.

[0011] Preferably, one side of the upper movable rod and the lower movable rod is fixedly connected to a baffle, and baffles are also fixedly arranged on both sides of the second slide rail, one side of the baffle is fixedly connected to one end of a rubber leather cover, and the other end of the rubber leather cover is fixedly connected to the contact plate, the outside of the mounting cover is fixedly connected to one end of the first telescopic rod, and the other end of the first telescopic rod is fixedly connected to the movable plate, and a first spring is sleeved on the outer surface of the first telescopic rod, one end of the first spring is fixedly connected to the mounting cover, and the other end is fixedly connected to the movable plate, and the movable plate is arranged on the outside of the rubber leather cover.

[0012] Preferably, through holes are provided at the upper ends of the first screw and the second screw, and a plurality of through holes corresponding to the latches are provided outside the mounting cover, and the latches are inserted into the through holes, so that the first screw and the second screw are restricted by the latches to prevent them from rotating.

[0013] Compared with the prior art, the beneficial effects of the present invention are: the present invention utilizes an adjustable mechanism, using two screws to adjust the size and shape of the dust cover, thereby improving its flexibility, and its operation is simple, and it can adapt to building panels of different sizes, and can greatly reduce the probability of dust floating out from the sides of the dust cover, thereby protecting the user's respiratory system and reducing the amount of dust in the use environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 The main structure of the present invention is shown in FIG. Figure 1 ;

[0015] Figure 2 The main structure of the present invention is shown in FIG. Figure 2 ;

[0016] Figure 3 It is a schematic diagram of the main structure of the dustproof mechanism of the present invention;

[0017] Figure 4 It is a schematic diagram of the main internal structure of the installation bin of the present invention;

[0018] Figure 5 It is a schematic diagram of the main structure of the cross section of the present invention;

[0019] Figure 6 It is a front view of the present invention;

[0020] Figure 7 It is a schematic diagram of the main structure of the upper movable rod and the lower movable rod after deformation of the present invention.

[0021] In the figure: 1, body, 2, dustproof mechanism, 201, mounting cover, 202, first mounting frame, 2021, first movable frame, 2022, first screw, 2023, bidirectional screw, 203, second movable frame, 204, first slide rail, 205, second screw, 206, first connecting rod, 2061, second connecting rod, 207, contact rod, 208, upper movable rod, 209, first groove, 210, baffle, 2101, first telescopic rod, 2102, movable plate, 2103, first spring, 211 , first slider, 212, second slide rail, 213, first toggle rod, 214, mounting compartment, 215, first mounting pad, 216, first rack, 217, gear, 218, second rack, 219, second mounting pad, 220, second toggle rod, 221, second mounting bracket, 2211, third connecting rod, 2212, lower movable rod, 2213, fourth connecting rod, 2214, second groove, 222, second slider, 3, micro vacuum cleaner, 301, vacuum tube, 401, rubber cover, 402, contact plate. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] See also Figure 1-7 , the present invention provides a technical solution:

[0024] In order to realize the flexibility of the device, a dustproof electric drill with a dustproof cover is proposed, comprising a body 1, a dustproof mechanism 2, and a micro-dust collector 3. The dustproof mechanism 2 is arranged on one side of the drill head of the body 1, and the second movable frame 203 of the dustproof mechanism 2 is slidably mounted above the baffle 210 and is in contact with and connected to the baffle 210. The baffle 210 is divided into two groups, and the distance between the two groups of baffles 210 is adjusted by the second movable frame 203, and the shape formed by the two groups of baffles 210 is adjusted. The micro-dust collector 3 is fixedly arranged on the body 1;

[0025] The dustproof mechanism 2 includes: a mounting cover 201, a first mounting frame 202, and an upper movable rod 208. The mounting cover 201 is fixedly mounted on one side of the machine body 1. A first slide rail 204 is arranged on the inner side of the mounting cover 201. One end of the first mounting frame 202 is slidably mounted in the first slide rail 204. The first mounting frame 202 is arranged in the mounting cover 201. The other end of the first mounting frame 202 is slidably mounted with the mounting cover 201. The upper surface of the first mounting frame 202 is fixedly connected to one end of a first movable frame 2021. The other end of the first movable frame 2021 is slidably mounted on the inner surface of the mounting cover 201. The first movable frame 2021 is slidably mounted on a screw hole arranged on the inner surface end of the mounting cover 201. The first screw rod 2022 is threadedly connected to the screw hole. The first screw rod 2022 is rotatably mounted on the mounting cover 201.

[0026] A limit block is disposed on the first screw rod 2022 , and the limit block limits the maximum moving distance of the first movable frame 2021 .

[0027] In the initial state, the upper movable rod 208 and the lower movable rod 2212 are in a parallel state.

[0028] When encountering a strip material with a small width, in order to prevent dust from leaking out from both sides of the dust cover, it is necessary to adjust the distance between the upper movable rod 208 and the lower movable rod 2212. At this time, the first screw rod 2022 is screwed to rotate the first screw rod 2022. The rotation of the first screw rod 2022 moves the first mounting frame 202 downward, and the first mounting frame 202 slides in the first slide rail 204.

[0029] The first mounting frame 202 is provided with a screw hole near the first slide rail 204, the inner thread of the screw hole is connected with a bidirectional screw rod 2023, the bidirectional screw rod 2023 does not interfere with the drill bit, the bidirectional screw rod 2023 is rotatably mounted in the mounting cover 201, the other end of the bidirectional screw rod 2023 is threadedly connected with the second mounting frame 221, and the threads on the two sides of the bidirectional screw rod 2023 are opposite;

[0030] When the first mounting frame 202 moves downward, since it is threadedly connected to the upper half of the bidirectional screw 2023, the bidirectional screw 2023 will also rotate. The bidirectional screw 2023 rotates. Since the threads on the two sides of the bidirectional screw 2023 are opposite, the second mounting frame 221 threadedly connected to the lower half of the bidirectional screw 2023 moves upward. The movement directions of the first mounting frame 202 and the second mounting frame 221 are opposite, so the upper movable rod 208 connected to the first mounting frame 202 and the second mounting frame 221 is connected to the lower movable rod 208. The movable rod 2212 moves in the opposite direction. Since the first mounting frame 202 moves as a whole, the second connecting rod 2061 and the first connecting rod 206 move at the same time, and the upper movable rod 208 moves as a whole, and no rotation around the second connecting rod 2061 occurs. Similarly, the second mounting frame 221 moves as a whole, the third connecting rod 2211 and the fourth connecting rod 2213 move at the same time, and the lower movable rod 2212 moves as a whole, and no rotation around the third connecting rod 2211 occurs.

[0031] The distance between the upper movable bar 208 and the lower movable bar 2212 becomes shorter, so that it gradually conforms to the strip material with smaller width.

[0032] The first mounting frame 202 is provided with a slide groove at one end away from the first slide rail 204, and the second mobile frame 203 is slidably installed in the slide groove. One end of the second mobile frame 203 passes through the first mounting frame 202 and is fixedly connected to one end of the first connecting rod 206. The other end of the second mobile frame 203 is slidably installed on the inner surface of the mounting cover 201. A screw hole is provided at the upper end of the second mobile frame 203. The second screw rod 205 is threadedly connected in the screw hole. The second screw rod 205 is rotatably installed on the mounting cover 201. The first mobile frame 2021 is similar in shape to the second mobile frame 203. The first connecting rod 206 The other end is fixedly connected to the contact rod 207, the surface of the contact rod 207 is in contact with the inner surface of the first groove 209 on the upper movable rod 208, one end of the upper movable rod 208 is rotatably connected to the second connecting rod 2061, and the other end is hinged to the first slider 211. There are two upper movable rods 208, the second connecting rod 2061 is fixedly connected to the lower surface of the first mounting frame 202, the first slider 211 is slidably installed in the second slide rail 212, the surface of the first slider 211 is rotatably connected to one end of the first toggle rod 213, and the second slide rail 212 is fixedly set in the mounting cover 201;

[0033] The connection end between the first toggle rod 213 and the first slider 211 is close to the lower side of the first slider 211 .

[0034] In the initial state, the first sliding block 211 is in an inclined state, and the hinged end between the upper movable rod 208 and the first sliding block 211 is located outside the second sliding rail 212 .

[0035] When encountering a circular material or a material that is approximately circular, in order to prevent dust from leaking out from around the dust cover, it is necessary to adjust the shape formed by the upper movable rod 208 and the lower movable rod 2212 so that it moves and changes into a hexagonal shape similar to a circle;

[0036] The second screw rod 205 is screwed to rotate on the mounting cover 201, and the first mounting frame 202 does not move, so the position of the second connecting rod 2061 does not change. The second screw rod 205 rotates to drive the second movable frame 203 to move. The second movable frame 203 is fixedly connected to the first connecting rod 206, so the first connecting rod 206 moves in the same direction as the second movable frame 203, and the contact rod 207 moves at the same time.

[0037] Since the contact rod 207 is in contact with the inner surface of the first groove 209 of the upper movable rod 208, when the contact rod 207 moves downward, the contact rod 207 will apply pressure to the inner surface of the first groove 209, thereby causing the two upper movable rods 208 to rotate around the second connecting rod 2061, and an angle is gradually formed between the two upper movable rods 208. Since the length of the upper movable rod 208 remains unchanged, when the upper movable rod 208 moves downward away from the second movable frame 203 end, it will drive the first slider 211 to slide in the second slide rail 212. When the upper movable rod 208 moves downward away from the second movable frame 203 end, it will gradually make a circular motion. The upper movable rod 208 will gradually rotate away from the second movable frame 203 end in the direction away from the second slide rail 212. The upper movable rod 208 gradually pushes the first slider 211, so that the first slider 211 is parallel to the second slide rail 212, and the hinged end of the upper movable rod 208 and the first slider 211 gradually moves into the second slide rail 212.

[0038] Through holes are set at the upper ends of the first screw rod 2022 and the second screw rod 205, and a plurality of through holes corresponding to the latches are set outside the mounting cover 201. The latches are inserted into the through holes to limit the first screw rod 2022 and the second screw rod 205 to prevent them from rotating.

[0039] The other end of the first toggle rod 213 is fixedly connected to the first mounting pad 215, the first mounting pad 215 is fixedly installed on one end of the first rack 216, the first rack 216 is slidably installed in the mounting chamber 214, the mounting chamber 214 is fixedly installed on the side of the second slide rail 212, the first rack 216 is meshed with one side of the gear 217, the gear 217 is rotatably installed in the mounting chamber 214, the other side of the gear 217 is meshed with the second rack 218, the second rack 218 is slidably installed in the mounting chamber 214, one end of the second rack 218 is fixedly connected to one side of the second mounting pad 219, the second mounting pad 219 The other end is fixedly connected to one end of the second toggle rod 220, the other end of the second toggle rod 220 is rotatably connected to the side of the second slider 222, the second slider 222 is slidably installed in the second slide rail 212, the second slider 222 is hinged to one end of the lower movable rod 2212, the other end of the lower movable rod 2212 is rotatably connected to one end of the third connecting rod 2211, the third connecting rod 2211 is fixedly installed on the second mounting frame 221, the second mounting frame 221 is fixedly connected to one end of the fourth connecting rod 2213, and the other end of the fourth connecting rod 2213 is in contact with the inner surface of the second groove 2214 of the lower movable rod 2212.

[0040] When the first slider 211 moves downward, it drives the first toggle rod 213 to move downward. Since the first slider 211 is rotatably connected to the first toggle rod 213, when the first slider 211 rotates around the upper movable rod 208, the first toggle rod 213 remains stationary.

[0041] When the upper movable rod 208 moves, the first toggle rod 213 moves downward to drive the first mounting pad 215 to move, and then drives the first rack 216 to move downward. The first rack 216 is meshed with the gear 217, so the gear 217 rotates. The other side of the gear 217 is meshed with the second rack 218, so the second rack 218 moves, and the direction of movement of the second rack 218 is opposite to that of the first rack 216. The movement of the second rack 218 drives the second mounting pad 219 to rotate, and then drives the second slider 222 to move upward. The upward movement of the second slider 222 drives the lower movable rod 2212 to move upward;

[0042] Since the second mounting bracket 221 does not move, the third connecting rod 2211 also does not move. Therefore, when the lower movable rod 2212 moves upward, the lower movable rod 2212 rotates around the third connecting rod 2211. The connection method between the second slider 222 and the lower movable rod 2212 is the same as the connection method between the upper movable rod 208 and the first slider 211. Therefore, when the second slider 222 moves upward, the length of the lower movable rod 2212 remains unchanged. The lower movable rod 2212 pulls the second slider 222 to make the second slider 222 gradually parallel to the second slide rail 212.

[0043] When moved to a suitable distance, the two upper movable rods 208, the two lower movable rods 2212 and the second slide rail 212 form a hexagonal shape similar to a circle.

[0044] Part of the surface of one side of the two upper movable rods 208 and the two lower movable rods 2212 is fixedly connected to the baffle 210, each baffle 210 is independent of each other, and baffles 210 are also fixedly arranged on both sides of the second slide rail 212, one side of the baffle 210 is fixedly connected to one end of the rubber cover 401, and the other end of the rubber cover 401 is fixedly connected to the contact plate 402. The outer side of the installation cover 201 is fixedly connected to one end of the first telescopic rod 2101, and the other end of the first telescopic rod 2101 is fixedly connected to the moving plate 2102. The outer surface of the first telescopic rod 2101 is sleeved with a first spring 2103, one end of the first spring 2103 is fixedly connected to the installation cover 201, and the other end is fixedly connected to the moving plate 2102, and the moving plate 2102 is arranged on the outer side of the rubber cover 401.

[0045] The baffle plate 210 connected to the upper movable rod 208 and the lower movable rod 2212 will change position, but the baffle plate 210 connected to the second slide rail 212 will not change position.

[0046] When the drill bit on the body 1 is drilled into the material, the contact plate 402 contacts the material surface, and one side of the movable plate 2102 contacts the wall. When the body 1 is pressed, the first telescopic rod 2101 contracts, the first spring 2103 shortens, and the rubber cover 401 shortens. When the body 1 is pulled outward, the body 1 loses pressure, the first telescopic rod 2101 extends, the first spring 2103 is reset, and the rubber cover 401 is reset.

[0047] The movable plate 2102 can block most of the dust that floats out from the gap after the positions of the rubber cover 401 and the contact plate 402 change.

[0048] Limiting blocks are disposed on the first rack 216 and the second rack 218 to prevent the first rack 216 and the second rack 218 from being separated from the gear 217 .

[0049] One end of the dust suction pipe 301 is fixedly connected inside the installation cover 201 , and the other end of the dust suction pipe 301 is fixedly connected to one side of the micro dust collector 3 . The micro dust collector 3 is fixedly arranged on one side of the machine body 1 .

[0050] The micro vacuum cleaner 3 adopts an existing negative pressure vacuum cleaner.

[0051] When the switch of the micro vacuum cleaner 3 is turned on, the micro vacuum cleaner 3 will suck the dust in the installation cover 201 into the micro vacuum cleaner 3 through the dust suction pipe 301 .

[0052] Working principle of the present invention:

[0053] When encountering a strip material with a small width, in order to prevent dust from leaking out from both sides of the dust cover, it is necessary to adjust the distance between the upper movable rod 208 and the lower movable rod 2212. At this time, the first screw 2022 is turned, and the first screw 2022 rotates to move the first mounting frame 202 downward, and the bidirectional screw 2023 rotates. The bidirectional screw 2023 rotates, and the second mounting frame 221 moves upward. Therefore, the upper movable rod 208 connected to the first mounting frame 202 and the second mounting frame 221 move in opposite directions to the lower movable rod 2212, and the distance between the upper movable rod 208 and the lower movable rod 2212 becomes shorter, so that it gradually conforms to the strip material with a smaller width.

[0054] When encountering a circular material or a material that is approximately circular, in order to prevent dust from leaking out from around the dust cover, it is necessary to adjust the shape formed by the upper movable rod 208 and the lower movable rod 2212 so that it moves and changes into a hexagonal shape similar to a circle;

[0055] First, adjust the distance between the upper movable rod 208 and the lower movable rod 2212 in the previous step, and then screw the second screw rod 205 to rotate the second screw rod 205 on the mounting cover 201. The position of the second connecting rod 2061 will not change. The rotation of the second screw rod 205 drives the second movable frame 203 to move, and the first connecting rod 206 moves in the same direction as the second movable frame 203, and the contact rod 207 moves at the same time.

[0056] The contact rod 207 applies pressure to the inner surface of the first groove 209 , thereby causing the two upper movable rods 208 to rotate around the second connecting rod 2061 , gradually forming an angle between the two upper movable rods 208 . When the upper movable rods 208 move downward, they drive the first slider 211 to slide in the second slide rail 212 .

[0057] When the first slider 211 moves downward, it drives the first toggle rod 213 to move downward. Since the first slider 211 is rotatably connected to the first toggle rod 213, when the first slider 211 rotates around the upper movable rod 208, the first toggle rod 213 remains stationary.

[0058] When the upper movable rod 208 moves, the first toggle rod 213 moves downward to drive the first mounting pad 215 to move, and then drives the first rack 216 to move downward. The first rack 216 is engaged with the gear 217, so the gear 217 will rotate, and the second rack 218 moves. The movement of the second rack 218 drives the second mounting pad 219 to rotate, and then drives the second slider 222 to move upward. The second slider 222 moves upward to drive the lower movable rod 2212 to move upward. When the lower movable rod 2212 moves upward, the lower movable rod 2212 rotates around the third connecting rod 2211. When the second slider 222 moves upward, the lower movable rod 2212 pulls the second slider 222 to make the second slider 222 gradually parallel to the second slide rail 212.

[0059] When moved to a suitable distance, the two upper movable rods 208, the two lower movable rods 2212 and the second slide rail 212 form a hexagonal shape similar to a circle.

[0060] The baffle plate 210 connected to the upper movable rod 208 and the lower movable rod 2212 will change position, but the baffle plate 210 connected to the second slide rail 212 will not change position.

[0061] When the switch of the micro vacuum cleaner 3 is turned on, the micro vacuum cleaner 3 will suck the dust in the installation cover 201 into the micro vacuum cleaner 3 through the dust suction pipe 301 .

[0062] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A dustproof electric drill with a dustproof cover, characterized in that: The machine comprises a body (1), a dustproof mechanism (2), and a micro-dust collector (3); the dustproof mechanism (2) is arranged on one side of a drill bit of the machine body (1); a second movable frame (203) of the dustproof mechanism (2) is slidably mounted above a baffle (210) and is in contact with and connected to the baffle (210); the baffle (210) is divided into two groups; the distance between the two groups of baffles (210) and the shape formed by the two groups of baffles (210) are adjusted by the second movable frame (203); and the micro-dust collector (3) is fixedly arranged on the machine body (1); The dustproof mechanism (2) comprises: an installation cover (201), a first installation frame (202), and an upper movable rod (208); the installation cover (201) is fixedly installed on one side of the machine body (1); a first slide rail (204) is arranged on the inner side of the installation cover (201); one end of the first installation frame (202) is slidably installed in the first slide rail (204); the first installation frame (202) is arranged in the installation cover (201); the other end of the first installation frame (202) is slidably installed with the installation cover (201); the upper surface of the first installation frame (202) is fixedly connected to one end of the first movable frame (221); the other end of the first movable frame (2021) is slidably installed on the inner surface of the installation cover (201); the first movable frame (2021) is slidably installed on the inner surface end of the installation cover (201); a screw hole is arranged on the inner surface of the installation cover (201); the first screw rod (2022) is threadedly connected to the screw hole; the first screw rod (2022) is rotatably installed on the installation cover (201); The first mounting frame (202) is provided with a screw hole near the first slide rail (204), the screw hole is threadedly connected to a bidirectional screw rod (2023), the bidirectional screw rod (2023) does not interfere with the drill bit, the bidirectional screw rod (2023) is rotatably mounted in the mounting cover (201), the other end of the bidirectional screw rod (223) is threadedly connected to the second mounting frame (221), and the threads on the two side surfaces of the bidirectional screw rod (2023) are opposite; A slide groove is provided at one end of the first mounting frame (202) away from the first slide rail (204), and a second movable frame (203) is slidably installed in the slide groove; one end of the second movable frame (203) passes through the first mounting frame (202) and is fixedly connected to one end of the first connecting rod (206); the other end of the second movable frame (203) is slidably installed on the inner surface of the mounting cover (201); a screw hole is provided at the upper end of the second movable frame (203), and a second screw rod (205) is threadedly connected in the screw hole; the second screw rod (205) is rotatably installed on the mounting cover (201); the other end of the first connecting rod (206) is fixedly connected to the contact rod (207); The surface of the contact rod (207) is in contact with and connected to the inner surface of the first groove (209) on the upper movable rod (208); one end of the upper movable rod (208) is rotatably connected to the second connecting rod (2061), and the other end is hinged to the first slider (211); there are two upper movable rods (208); the second connecting rod (2061) is fixedly connected to the lower surface of the first mounting frame (202); the first slider (211) is slidably mounted in the second slide rail (212); the surface of the first slider (211) is rotatably connected to one end of the first toggle rod (213); and the second slide rail (212) is fixedly arranged in the mounting cover (201); The other end of the first toggle rod (213) is fixedly connected to the first mounting pad (215), the first mounting pad (215) is fixedly mounted on one end of the first rack (216), the first rack (216) is slidably mounted in the mounting chamber (214), the mounting chamber (214) is fixedly mounted on the side of the second slide rail (212), the first rack (216) is meshedly connected to one side of the gear (217), the gear (217) is rotatably mounted in the mounting chamber (214), the other side of the gear (217) is meshedly connected to the second rack (218), the second rack (218) is slidably mounted in the mounting chamber (214), one end of the second rack (218) is fixedly connected to one side of the second mounting pad (219), the second mounting pad ( 219) and the other end is fixedly connected to one end of the second toggle rod (220); the other end of the second toggle rod (220) is rotatably connected to the side of the second slider (222); the second slider (222) is slidably installed in the second slide rail (212); the second slider (222) is hinged to one end of the lower movable rod (2212); the other end of the lower movable rod (2212) is rotatably connected to one end of the third connecting rod (2211); the third connecting rod (2211) is fixedly installed on the second mounting frame (221); the second mounting frame (221) is fixedly connected to one end of the fourth connecting rod (2213); the other end of the fourth connecting rod (2213) is in contact with and connected to the inner surface of the second groove (2214) of the lower movable rod (2212).

2. A dustproof electric drill with a dustproof cover according to claim 1, characterized in that: One end of a dust suction pipe (301) is fixedly connected inside the mounting outer cover (201), and the other end of the dust suction pipe (301) is fixedly connected to one side of a micro dust collector (3), and the micro dust collector (3) is fixedly arranged on one side of the machine body (1).

3. The dustproof electric drill with a dustproof cover according to claim 1, characterized in that: One side of the upper movable rod (208) and the lower movable rod (2212) is fixedly connected to a baffle (210), and baffles (210) are also fixedly arranged on both sides of the second slide rail (212). One side of the baffle (210) is fixedly connected to one end of a rubber sleeve (401), and the other end of the rubber sleeve (401) is fixedly connected to a contact plate (402). The outer side of the mounting cover (201) is fixedly connected to one end of a first telescopic rod (2101), and the other end of the first telescopic rod (2101) is fixedly connected to a movable plate (2102). A first spring (2103) is sleeved on the outer surface of the first telescopic rod (2101), and one end of the first spring (2103) is fixedly connected to the mounting cover (201), and the other end is fixedly connected to the movable plate (2102), and the movable plate (2102) is arranged on the outer side of the rubber sleeve (401).

4. The dustproof electric drill with a dustproof cover according to claim 1, characterized in that: Through holes are provided at the upper ends of the first screw rod (2022) and the second screw rod (205), into which plugs are inserted, and a plurality of through holes corresponding to the plugs are provided on the outside of the mounting cover (201), and the first screw rod (2022) and the second screw rod (205) are restricted by the plugs to prevent them from rotating.

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