Percussion drill capable of improving safety

Abstract

The utility model discloses a percussion drill capable of improving safety, and relates to the technical field of percussion drills, and the percussion drill comprises a drill body, one end of the drill body is rotatably connected with a support bracket mechanism, one end, far away from the support bracket mechanism, of the drill body is fixedly connected with a protection mechanism, the protection mechanism comprises a threaded rod, and one end of the threaded rod is fixedly connected with a motor; the output end of the motor is fixedly connected with the threaded rod, a protective cover is connected to the outer surface of the threaded rod in a penetrating mode, one end of the protective cover is in meshed connection with the threaded rod, four fixing holes are formed in the outer surface of the protective cover, fixing rods are slidably connected to the inner surfaces of the four fixing holes, and one ends of the fixing rods are fixedly connected with the drill body. Through the arrangement of the protection mechanism, under the action of a motor, a threaded rod, a protection cover, a fixing spring and a fixing rod in the protection mechanism, the functions of preventing a large amount of dust and particles generated at the drilling position from affecting operation of a user and preventing the dust or the particles from entering the mouth, the nose or the eyes of the user to cause danger can be achieved.

Description

Technical Field

[0001] The present application relates to the technical field of impact drills, and in particular to an impact drill with improved safety. Background Art

[0002] An impact drill is a commonly used electric drilling tool, mainly suitable for impact drilling of concrete floors, walls, bricks, stones, wooden boards or multi-layer materials; in addition, it can also be used for drilling and tapping on wood, metal, ceramics and plastics.

[0003] According to the announcement number: CN209716525U, a high-safety impact drill is disclosed. This technology discloses "a driving motor, a connecting shaft and a locking assembly, the locking assembly includes a locking disk, and also includes a transmission assembly, the transmission assembly includes a fixed disk fixed to the driving motor and a positioning disk fixed to the locking disk, the positioning disk is provided with a positioning convex tooth on the side facing the fixed disk, and the fixed disk is provided with a locking convex tooth engaged with the fixed groove, etc., which has the effect of being safer to use";

[0004] With respect to the above-mentioned related technologies, the inventors believe that when using an impact drill to drill holes in concrete, walls or stones, a large amount of dust and particles are often generated at the drilling location. The dust not only affects the user's operation, but also may even be dangerous when the dust or particles enter the user's mouth, nose or eyes. In addition, when using an impact drill, the impact force is too large for the user to control, and improper operation may cause harm to the user. Utility Model Content

[0005] The purpose of the present application is to provide an impact drill with improved safety, so as to improve the problem that a large amount of dust and particles are often generated at the drilling location when the impact drill is used, the dust affects the user's operation and may also cause danger, and the impact force is too large for the user to control, and improper operation may cause harm to the user.

[0006] The impact drill with improved safety provided by the present application adopts the following technical solutions:

[0007] An impact drill with improved safety comprises a drill body, one end of the drill body is rotatably connected to a support mechanism, one end of the drill body away from the support mechanism is fixedly connected to a protective mechanism, the protective mechanism comprises a threaded rod, one end of the threaded rod is fixedly connected to a motor, and the output end of the motor is fixedly connected to the threaded rod, a protective cover is passed through the outer surface of the threaded rod, and one end of the protective cover is threadedly connected to the threaded rod, four fixing holes are opened on the outer surface of the protective cover, and the inner surfaces of the four fixing holes are slidably connected to a fixing rod, and one end of the fixing rod is fixedly connected to the drill body.

[0008] By adopting the above technical solution, the extension and retraction of the protective cover can be controlled to prevent excessive dust from being generated when the impact drill is in operation.

[0009] Optionally, the support bracket mechanism includes two rotating shafts, the outer surfaces of the two rotating shafts are rotatably connected to a support frame, three limit holes are opened on both sides of the support frame, the lower end of the support frame is in contact with a fixed seat, and one side of the fixed seat is fixedly connected to the drill body, the inner surface of the support frame is slidably connected to a support arm, one end of the support arm is fixedly connected to a fixed bracket, one side of the fixed bracket is fixedly connected to a reinforcement member, and the upper end of the reinforcement member is fixedly connected to the support arm, the inner side of the fixed bracket is fixedly connected to a reinforcement bar, the inner surface of one of the limit holes is movably in contact with two limit rods, and a limit spring is fixedly connected between the two limit rods.

[0010] By adopting the above technical solution, workers can better control the impact drill when the impact drill is in operation to prevent danger.

[0011] Optionally, the lower end of the motor is fixedly connected to a moving seat, the lower end of the moving seat is fixedly connected to a first slider, the lower end of the first slider is slidably connected to a first slide rail, and the lower end of the first slide rail is fixedly connected to the drill body.

[0012] By adopting the above technical solution, support and position limiting fixation can be provided for the sliding of the movable seat.

[0013] Optionally, one end of the movable seat is fixedly connected to a guide rod, the outer surface of the guide rod is fixedly connected to a limiting ring, one side of the limiting ring is fixedly connected to a fixing spring, one end of the fixing spring is fixedly connected to a fixing block, and the lower end of the fixing block is fixedly connected to the drill body.

[0014] By adopting the above technical solution, the protective mechanism can be extended and retracted along with the drill bit when the impact drill is working, thereby increasing the service life of the protective mechanism.

[0015] Optionally, the outer surface of the threaded rod is rotatably connected to a support seat, and the lower end of the support seat is fixedly connected to the drill body.

[0016] By adopting the above technical solution, support and fixation can be provided for the rotation of the threaded rod.

[0017] Optionally, both ends of the support arm are fixedly connected with second slide rails, the outer surface of the second slide rail is slidably connected with a second slider, and one side of the second slider is fixedly connected to the support frame.

[0018] By adopting the above technical solution, support and limitation can be provided for the telescopic sliding of the support arm.

[0019] Optionally, the lower end of the drill body is fixedly connected to a handle, one side of the handle is fixedly connected to a start button, and the lower end of the handle is fixedly connected to a battery.

[0020] By adopting the above technical solution, a power source for the impact drill is provided.

[0021] Optionally, a side handle is fixedly connected to one side of the drill body, and a protective ring is fixedly connected to the outer surface of the side handle.

[0022] By adopting the above technical solution, it is convenient for workers to stabilize the impact drill.

[0023] In summary, the present application includes at least one of the following beneficial technical effects:

[0024] 1. The utility model is provided with a protective mechanism, wherein the motor, threaded rod, protective cover, fixing spring and fixing rod are used to prevent a large amount of dust and particles generated at the drilling position from affecting the user's operation and to prevent dust or particles from entering the user's mouth, nose or eyes, causing danger;

[0025] 2. The utility model sets up a support bracket mechanism, in which the rotating shaft, support frame, support arm, limit spring and fixed bracket are used to achieve the function of preventing the user from being injured due to excessive impact force when the impact drill is used, thereby preventing the user from being difficult to control and causing improper operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the structure of the utility model.

[0027] Figure 2 It is a schematic diagram of the protective mechanism of the utility model.

[0028] Figure 3 It is a schematic diagram of the supporting mechanism of the utility model.

[0029] In the figure, 1, drill body; 2, protective mechanism; 21, threaded rod; 211, support seat; 22, protective cover; 221, fixing hole; 23, fixing rod; 24, moving seat; 25, first slider; 251, first slide rail; 26, guide rod; 261, limiting ring; 27, fixing spring; 28, fixing block; 29, motor; 3, supporting bracket mechanism; 31, rotating shaft; 32, supporting frame; 321, limiting hole; 33, supporting arm; 331, limiting rod; 332, limiting spring; 34, fixing bracket; 35, reinforcement member; 36, reinforcement strip; 37, fixing seat; 38, second slide rail; 39, second slider; 4, grip; 41, start button; 42, battery; 5, side handle; 51, protective ring. DETAILED DESCRIPTION

[0030] The following is combined with Figure 1 -Attached Figure 3 , further details of this application are given.

[0031] Example 1

[0032] Impact drill with improved safety, see Figure 1 and reference Figure 2 , including a drill body 1, one end of the drill body 1 is rotatably connected to a support mechanism 3, the end of the drill body 1 away from the support mechanism 3 is fixedly connected to a protective mechanism 2, the protective mechanism 2 includes a threaded rod 21, one end of the threaded rod 21 is fixedly connected to a motor 29, and the output end of the motor 29 is fixedly connected to the threaded rod 21, the outer surface of the threaded rod 21 is penetrated by a protective cover 22, and one end of the protective cover 22 is threadedly connected to the threaded rod 21, the outer surface of the protective cover 22 is provided with four fixing holes 221, the inner surfaces of the four fixing holes 221 are slidably connected to a fixing rod 23, and one end of the fixing rod 23 is fixedly connected to the drill body 1.

[0033] Reference Figure 2 The lower end of the motor 29 is fixedly connected to the moving seat 24, the lower end of the moving seat 24 is fixedly connected to the first slider 25, the lower end of the first slider 25 is slidably connected to the first slide rail 251, and the lower end of the first slide rail 251 is fixedly connected to the drill body 1.

[0034] Reference Figure 2 One end of the movable seat 24 is fixedly connected to a guide rod 26, the outer surface of the guide rod 26 is fixedly connected to a limit ring 261, one side of the limit ring 261 is fixedly connected to a fixed spring 27, one end of the fixed spring 27 is fixedly connected to a fixed block 28, and the lower end of the fixed block 28 is fixedly connected to the drill body 1.

[0035] Reference Figure 2 The outer surface of the threaded rod 21 is rotatably connected to a support seat 211 , and the lower end of the support seat 211 is fixedly connected to the drill body 1 .

[0036] Reference Figure 1 The lower end of the drill body 1 is fixedly connected to a handle 4, one side of the handle 4 is fixedly connected to a start button 41, and the lower end of the handle 4 is fixedly connected to a battery 42.

[0037] Reference Figure 1 A side handle 5 is fixedly connected to one side of the drill body 1 , and a protective ring 51 is fixedly connected to the outer surface of the side handle 5 .

[0038] The implementation principle of the embodiment of the present application is as follows: first, the staff member holds the handle 4 and starts the motor 29 on the protective mechanism 2. The output end of the motor 29 drives the threaded rod 21 to rotate on the support seat 211. The rotation of the threaded rod 21 drives the protective cover 22 to extend and retract along the fixed rod 23. The material of the protective cover 22 is a retractable material. The protective cover 22 is extended and retracted to a suitable position. The staff member holds the handle 4 with one hand and the side handle 5 with the other hand to drill. When drilling, the impact drill and the wall impact drive the protective cover 22 to extend and retract. The extension and retraction of the protective cover 22 drives the threaded rod 21 to extend and retract. The extension and retraction of the threaded rod 21 drives the motor 29 to extend and retract. The extension and retraction of the motor 29 drives the moving seat 24 to extend and retract along the first slide rail 251 under the action of the first slider 25. The extension and retraction of the moving seat 24 drives the guide rod 26 to extend and retract. The extension and retraction of the guide rod 26 drives the limit ring 261 to extend and retract. The extension and retraction of the limit ring 261 under the action of the fixed spring 27 makes the protective cover 22 always fit the wall.

[0039] Example 2

[0040] The difference between this embodiment and embodiment 1 is that:

[0041] Reference Figure 3 The support bracket mechanism 3 includes two rotating shafts 31, the outer surfaces of the two rotating shafts 31 are rotatably connected with a support frame 32, three limiting holes 321 are opened on both sides of the support frame 32, the lower end of the support frame 32 is contacted and connected with a fixed seat 37, and one side of the fixed seat 37 is fixedly connected to the drill body 1, and the inner surface of the support frame 32 is slidably connected with a support arm 33, one end of the support arm 33 is fixedly connected to a fixed bracket 34, one side of the fixed bracket 34 is fixedly connected to a reinforcement member 35, and the upper end of the reinforcement member 35 is fixedly connected to the support arm 33 A reinforcing strip 36 is fixedly connected to the inner side of the fixed bracket 34, and the inner surface of one of the limiting holes 321 is movably contacted with two limiting rods 331, and a limiting spring 332 is fixedly connected between the two limiting rods 331. Before use, the support frame 32 is rotated along the rotating shaft 31 to contact the fixed seat 37, and the limiting rod 331 is pressed to move the support arm 33, and the support arm 33 is moved to an appropriate length, so that the limiting rod 331 on the support arm 33 is inserted into the limiting hole 321 on the support frame 32 under the action of the limiting spring 332, so that the support arm 33 is fixed.

[0042] Reference Figure 3 The two ends of the support arm 33 are fixedly connected with the second slide rails 38, the outer surface of the second slide rails 38 is slidably connected with the second slider 39, and one side of the second slider 39 is fixedly connected to the support frame 32. The support arm 33 moves along the second slider 39 under the action of the second slide rails 38.

[0043] The embodiments of this specific implementation are all preferred embodiments of the present application, and are not intended to limit the protection scope of the present application. The same components are represented by the same figure marks. Therefore, any equivalent changes made based on 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 improved safety, comprising a drill body (1), characterized in that: One end of the drill body (1) is rotatably connected to a support mechanism (3), and one end of the drill body (1) away from the support mechanism (3) is fixedly connected to a protection mechanism (2); The protection mechanism (2) comprises a threaded rod (21), one end of the threaded rod (21) is fixedly connected to a motor (29), and the output end of the motor (29) is fixedly connected to the threaded rod (21), the outer surface of the threaded rod (21) is penetrated by a protection cover (22), and one end of the protection cover (22) is threadedly connected to the threaded rod (21), the outer surface of the protection cover (22) is provided with four fixing holes (221), the inner surfaces of the four fixing holes (221) are slidably connected to fixing rods (23), and one end of the fixing rod (23) is fixedly connected to the drill body (1).

2. The impact drill with improved safety according to claim 1, characterized in that: The support bracket mechanism (3) comprises two rotating shafts (31), the outer surfaces of the two rotating shafts (31) are rotatably connected with a support frame (32), three limiting holes (321) are provided on both sides of the support frame (32), the lower end of the support frame (32) is contact-connected with a fixed seat (37), and one side of the fixed seat (37) is fixedly connected to the drill body (1), the inner surface of the support frame (32) is slidably connected with a support arm (33), one end of the support arm (33) is fixedly connected with a fixed bracket (34), one side of the fixed bracket (34) is fixedly connected with a reinforcement member (35), and the upper end of the reinforcement member (35) is fixedly connected to the support arm (33), the inner side of the fixed bracket (34) is fixedly connected with a reinforcement bar (36), the inner surface of one of the limiting holes (321) is movably contacted with two limiting rods (331), and a limiting spring (332) is fixedly connected between the two limiting rods (331).

3. The impact drill with improved safety according to claim 1, characterized in that: The lower end of the motor (29) is fixedly connected to a moving seat (24), the lower end of the moving seat (24) is fixedly connected to a first sliding block (25), the lower end of the first sliding block (25) is slidably connected to a first sliding rail (251), and the lower end of the first sliding rail (251) is fixedly connected to the drill body (1).

4. The impact drill with improved safety according to claim 3, characterized in that: One end of the movable seat (24) is fixedly connected to a guide rod (26), the outer surface of the guide rod (26) is fixedly connected to a limit ring (261), one side of the limit ring (261) is fixedly connected to a fixed spring (27), one end of the fixed spring (27) is fixedly connected to a fixed block (28), and the lower end of the fixed block (28) is fixedly connected to the drill body (1).

5. The impact drill with improved safety according to claim 1, characterized in that: The outer surface of the threaded rod (21) is rotatably connected to a support seat (211), and the lower end of the support seat (211) is fixedly connected to the drill body (1).

6. The impact drill with improved safety according to claim 2, characterized in that: The two ends of the support arm (33) are fixedly connected to second slide rails (38), the outer surface of the second slide rail (38) is slidably connected to a second slider (39), and one side of the second slider (39) is fixedly connected to the support frame (32).

7. The impact drill with improved safety according to claim 1, characterized in that: The lower end of the drill body (1) is fixedly connected to a handle (4), one side of the handle (4) is fixedly connected to a start button (41), and the lower end of the handle (4) is fixedly connected to a battery (42).

8. The impact drill with improved safety according to claim 1, characterized in that: A side handle (5) is fixedly connected to one side of the drill body (1), and a protective ring (51) is fixedly connected to the outer surface of the side handle (5).

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