Percussion drill with dustproof function

Abstract

The utility model relates to the technical field of percussion drills, and discloses a percussion drill with a dustproof function, the percussion drill comprises a drilling machine body, the output end of the drilling machine body is provided with a drill bit, the drill bit is internally provided with a drill rod, and the outer side of the drill rod is provided with a dustproof cover; the dustproof cover is installed at one end of the drilling machine body through the connecting base, during disassembly, the stirring pieces on the inner sides of the two concave bases can drive the limiting rod at the bottom of the movable plate to move towards the inner sides of the concave bases so that the limiting rod can be separated from the interior of the connecting hole, and disassembly can be completed by directly pulling away the dustproof cover; when the connecting hole corresponds to the limiting rod, the shifting piece is loosened, the reset spring drives the movable plate to reset, and therefore the limiting rod is connected to the interior of the connecting hole, the dust cover is locked, the disassembly and assembly steps are simplified, rapid assembly and disassembly of the dust cover can be achieved, and the attractiveness of the drilling machine cannot be affected when the drilling machine is not used.

Description

Technical Field

[0001] The present application relates to the field of impact drill technology, and in particular to an impact drill with dustproof function. Background Art

[0002] Impact drills work by rotating and impacting. A single impact is very slight, but the impact frequency of more than 40,000 times per minute can generate continuous force. It is mainly suitable for impact drilling on concrete floors, walls, bricks, stones, wooden boards and multi-layer materials. It can also drill holes in wood, metal, ceramics and plastics. Existing impact drills generally cannot effectively solve the problem of dust pollution, especially in scenes such as indoor decoration. The dust generated by the operation will seriously affect the construction environment and personnel health. To address this problem, some impact drills are equipped with dust covers on the drill bits.

[0003] The dust covers of existing impact drills are mostly fixed with screws or connected by snaps. When removing them, tools or laborious operations are required, which is inconvenient for cleaning dust and replacing drill bits. Therefore, we urgently need to provide an impact drill with dustproof function.

[0004] The above information disclosed in the background technology is only used to increase the understanding of the background technology of the present application, and therefore, it may include information that does not constitute the prior art known to ordinary technicians in the field. Utility Model Content

[0005] In order to solve the problem that the dust covers of impact drills are mostly fixed with screws or snap-on connections, which requires tools or laborious operations to remove and is inconvenient to clean dust and replace drill bits, the present application provides an impact drill with a dustproof function.

[0006] The present application provides an impact drill with dustproof function adopts the following technical solution:

[0007] A hammer drill with dust-proof function comprises a drill body, a drill bit is installed at the output end of the drill body, a drill rod is installed inside the drill bit, a dust cover is provided on the outside of the drill rod, the upper and lower sides of one end of the drill body close to the drill bit are fixedly connected with concave seats, the inner walls of the two concave seats are fixedly connected with two fixing rods, the surfaces of the two fixing rods are movably connected with two movable plates, the bottoms of the two movable plates are fixedly connected with limiting rods, the other ends of the limiting rods are penetrated and arranged on the outside of the concave seat, the end of the dust cover close to the drill body is fixedly connected with a connecting seat, connecting holes are opened on both sides of the upper and lower ends of the connecting seat, the outer side of the limiting rod is connected to the inside of the connecting hole, and the ends of the two movable plates close to the inner wall of the concave seat are fixedly connected with reset springs on both sides.

[0008] Preferably, the other end of the return spring is fixedly connected to the inner wall of the concave seat, the return spring is sleeved on the outside of the fixed rod, and the upper end of the movable plate is fixedly connected to a toggle plate.

[0009] Preferably, positioning columns are fixedly connected on both sides of one end of the drill body close to the drill bit, and mounting holes are opened in the middle of both sides of the connecting seat, and the size of the mounting holes is equal to that of the positioning columns.

[0010] Preferably, a button is installed on the inner side of the drilling rig body, and a battery is plugged and connected to the bottom of the drilling rig body.

[0011] Preferably, a handle is fixedly connected to the side portion of one end of the drill body close to the drill bit.

[0012] In summary, this application includes the following beneficial technical effects:

[0013] 1. The dust cover is installed at one end of the drilling rig body by setting a connecting seat. When disassembling, the toggle pieces inside the two concave seats can be used to drive the limit rod at the bottom of the movable plate to move toward the inside of the concave seat so that the limit rod is separated from the inside of the connecting hole. The dust cover can be directly pulled out to complete the disassembly. Similarly, when installing, when the connecting hole corresponds to the limit rod, the toggle piece is released to allow the reset spring to drive the movable plate to reset, so that the limit rod is connected to the inside of the connecting hole, and the dust cover is locked, which simplifies the disassembly and assembly steps, and can realize the rapid assembly and disassembly of the dust cover, and will not affect its appearance when the drilling rig is not in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall installation structure of the embodiment of the application;

[0015] Figure 2 is a schematic diagram of the front view structure of the drilling rig body of the embodiment of the application;

[0016] Figure 3 It is an application example Figure 2 The enlarged structural diagram at A in the middle;

[0017] Figure 4 It is a schematic diagram of the dust cover structure of an embodiment of the application.

[0018] Explanation of the accompanying reference numerals: 1. Drill body; 2. Button; 3. Battery; 4. Handle; 5. Drill bit; 6. Drill rod; 7. Dust cover; 8. Concave seat; 9. Fixed rod; 10. Movable plate; 11. Limit rod; 12. Reset spring; 13. Toggle plate; 14. Connecting seat; 15. Connecting hole; 16. Mounting hole; 17. Positioning column. DETAILED DESCRIPTION

[0019] The following is combined with Figure 1-4This application is described in further detail.

[0020] The present application embodiment discloses an impact drill with dustproof function, referring to Figure 1-Figure 4 , including a drilling rig body 1, a drill bit 5 is installed at the output end of the drilling rig body 1, a drill rod 6 is installed inside the drill bit 5, a dust cover 7 is provided on the outside of the drill rod 6, and the dust cover 7 is used to isolate the dust generated when the drill rod 6 is drilling, thereby enhancing the environmental protection of the construction environment. The upper and lower sides of the end of the drilling rig body 1 close to the drill bit 5 are fixedly connected with concave seats 8, the inner walls of the two concave seats 8 are fixedly connected with two fixing rods 9, the surfaces of the two fixing rods 9 are movably connected with two movable plates 10, the bottoms of the two movable plates 10 are fixedly connected with limit rods 11, and the other ends of the limit rods 11 are both penetrated and arranged on the outside of the concave seat 8, the end of the dust cover 7 close to the drilling rig body 1 is fixedly connected with a connecting seat 14, and the upper and lower ends of the connecting seat 14 are provided with connecting holes 1 on both sides. 5. The outer side of the limit rod 11 is connected to the inside of the connecting hole 15. When disassembling, the toggle pieces 13 inside the two concave seats 8 can be used to drive the limit rod 11 at the bottom of the movable plate 10 to move toward the inside of the concave seat 8, so that the limit rod 11 is separated from the inside of the connecting hole 15, and the dust cover 7 can be directly pulled out to complete the disassembly. The two ends of the two movable plates 10 close to the inner wall of the concave seat 8 are fixedly connected with the return spring 12 on both sides. During installation, when the connecting hole 15 corresponds to the limit rod 11, the toggle piece 13 is released, so that the return spring 12 drives the movable plate 10 to reset, so that the limit rod 11 is connected to the inside of the connecting hole 15, and the dust cover 7 is locked, which simplifies the disassembly and assembly steps, and can realize the quick assembly and disassembly of the dust cover 7, and will not affect its appearance when the drilling rig is not in use.

[0021] Reference Figure 1-Figure 3 The other end of the return spring 12 is fixedly connected to the inner wall of the concave seat 8, and the return spring 12 is sleeved on the outer side of the fixed rod 9, which can ensure that the return spring 12 drives the movable plate 10 to move stably on the surface of the fixed rod 9. The upper end of the movable plate 10 is fixedly connected with a toggle piece 13. By setting the toggle piece 13, the two movable plates 10 on the surface of the fixed rod 9 can be easily driven to move. The two sides of the drill body 1 close to the drill bit 5 are fixedly connected with positioning columns 17, and the middle of both sides of the connecting seat 14 are provided with mounting holes 16, and the mounting holes 1 6 is equal in size to the positioning column 17. By setting the cooperation between the mounting hole 16 and the positioning column 17, the installation of the dust cover 7 is more accurate, ensuring that the operator can make the connecting hole 15 correspond to the limiting rod 11 each time the dust cover 7 is installed, ensuring the installation efficiency. A button 2 is installed on the inner side of the drill body 1, and a battery 3 is plugged and connected to the bottom of the drill body 1. A handle 4 is fixedly connected to the side of one end of the drill body 1 close to the drill bit 5. By setting the handle 4, the operator can save more effort when picking up the drill for drilling, thereby improving the working efficiency of the drill.

[0022] The implementation principle of an impact drill with a dustproof function in the embodiment of the present application is as follows: when the dust cover 7 is installed using the drill body 1, the two mounting holes 16 at the rear of the dust cover 7 are used to correspond to the two positioning columns 17 at one end of the drill body 1, and then the toggle pieces 13 inside the two concave seats 8 are pinched together, so that the two movable plates 10 drive the limiting rods 11 to move toward the inside of the concave seats 8, and then push the dust cover 7 to move toward the inside of the drill body 1. When the multiple connecting holes 15 on the side of the connecting seat 14 correspond to the limiting rods 11 respectively, the toggle piece 13 is released at this time, and the limiting rod 11 is driven to move toward the outside of the concave seat 8 through the rebound effect of the reset spring 12, so that the dust cover 7 is connected to the inside of the connecting hole 15 to lock the dust cover 7 at the output end of the drill body 1. When disassembly is required, the two toggle pieces 13 inside the two concave seats 8 are pinched together at the same time.

[0023] Finally, a few points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, which may refer to mechanical connection or electrical connection, or internal communication between two components, or direct connection. "upper", "lower", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may change;

[0024] Secondly: In the drawings of the embodiments disclosed in the present utility model, only the structures related to the embodiments disclosed in the present utility model are involved, and other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present utility model can be combined with each other;

[0025] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model should be included in the protection scope of the present utility model.

[0026] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. An impact drill with dustproof function, comprising a drill body (1), characterized in that: A drill bit (5) is installed at the output end of the drilling machine body (1), a drill rod (6) is installed inside the drill bit (5), a dust cover (7) is provided on the outside of the drill rod (6), and a concave seat (8) is fixedly connected to the upper and lower sides of one end of the drilling machine body (1) close to the drill bit (5), two fixed rods (9) are fixedly connected to the inner walls of the two concave seats (8), and two movable plates (10) are movably connected to the surfaces of the two fixed rods (9), and the bottoms of the two movable plates (10) are A limit rod (11) is fixedly connected, and the other end of the limit rod (11) is inserted through the outside of the concave seat (8). The end of the dust cover (7) close to the drilling rig body (1) is fixedly connected to a connecting seat (14). Both upper and lower ends of the connecting seat (14) are provided with connecting holes (15). The outside of the limit rod (11) is connected to the inside of the connecting hole (15). Both sides of one end of the two movable plates (10) close to the inner wall of the concave seat (8) are fixedly connected to return springs (12).

2. The impact drill with dustproof function according to claim 1, characterized in that: The other end of the return spring (12) is fixedly connected to the inner wall of the concave seat (8), the return spring (12) is sleeved on the outside of the fixed rod (9), and the upper end of the movable plate (10) is fixedly connected to a toggle plate (13).

3. The impact drill with dustproof function according to claim 1, characterized in that: Positioning columns (17) are fixedly connected to both sides of one end of the drilling machine body (1) close to the drill bit (5), and mounting holes (16) are opened in the middle of both sides of the connecting seat (14), and the size of the mounting holes (16) is equal to that of the positioning columns (17).

4. The impact drill with dustproof function according to claim 1, characterized in that: A button (2) is installed on the inner side of the drilling rig body (1), and a battery (3) is plugged and connected to the bottom of the drilling rig body (1).

5. The impact drill with dustproof function according to claim 1, characterized in that: A handle (4) is fixedly connected to the side portion of one end of the drill body (1) close to the drill bit (5).

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