Handheld brushless electric hammer

Abstract

The utility model discloses a handheld brushless electric hammer which comprises an electric hammer body, a dust blocking mechanism convenient to disassemble and assemble comprises a triangular clamp arranged at the output end of the electric hammer body, a limiting ring is fixedly arranged on the outer wall of one end of the electric hammer body, a limiting groove is formed in the outer wall of the limiting ring, and a magnetic block is fixedly arranged on the inner wall of the limiting groove. Arc-shaped blocking pieces are arranged on the outer walls of the two ends of the limiting groove in a penetrating mode, arc-shaped blocking strips are fixedly arranged on the edges of one sides of the two arc-shaped blocking pieces, and a drilling shaft is arranged on the inner wall of the triangular clamp in a penetrating mode. When a hole is drilled and a building wall body is excavated, broken stones are effectively prevented from hurting a user through the block of the arc-shaped blocking piece, and particularly, when the wall body in an area similar to a ceiling and the like is excavated, the broken stones produced in the hole vertically fall down and are intercepted through the arc-shaped blocking piece; in addition, under the action of the arc-shaped blocking strips, the device is not prone to sliding down to injure workers, during later cleaning, the arc-shaped blocking pieces are directly pulled down from the limiting rings, and the use safety of the device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of brushless electric hammers, in particular to a handheld brushless electric hammer. Background Art

[0002] Electric hammer is a kind of electric tool in electric drill. It is mainly used for drilling and chiseling on concrete, floor, brick wall and stone. In order to improve the convenience of construction, the use of handheld brushless electric hammer is becoming more and more widespread. With the development of science and technology, the function of handheld brushless electric hammer is also constantly improving, so that it can better meet the needs of users and improve construction efficiency.

[0003] In view of this, Chinese patent number CN205870452U proposes a handheld high-frequency brushless electric hammer, which can increase the frequency, so the impact is faster and the work efficiency is higher. The brushless design eliminates the commutation spark problem and avoids the harm of electromagnetic interference. However, the electric hammer will generate more dust and gravel particles during the construction process such as drilling and excavation. For the above technical scheme and the existing electric hammer, the upper end does not have the protection function of falling gravel during use. Therefore, when using it, the staff usually need to wear masks and baffles to protect themselves. If they fail to protect themselves, they may be at risk of being hit by gravel. Therefore, a brushless electric hammer with a dust-blocking structure that is easy to disassemble and assemble is needed. Utility Model Content

[0004] In order to solve the above problems, the purpose of the utility model is to provide a handheld brushless electric hammer to solve the problems raised in the above background technology.

[0005] To achieve the above object, the utility model proposes a handheld brushless electric hammer, comprising an electric hammer body, an upper end of the electric hammer body is provided with a dust blocking mechanism that is convenient for disassembly and assembly, and one end of the electric hammer body is provided with a buffer support mechanism;

[0006] The dust blocking mechanism that is easy to disassemble and assemble includes a triangular clamp arranged at the output end of the electric hammer body, a limiting ring is fixedly provided on the outer wall of one end of the electric hammer body, a limiting groove is provided on the outer wall of the limiting ring, a magnetic block is fixedly provided on the inner wall of the limiting groove, arc-shaped blocking pieces are interspersed on the outer walls at both ends of the limiting groove, and one side of the two arc-shaped blocking pieces is respectively adsorbed on the two sides of the magnetic block, arc-shaped blocking strips are fixedly provided at the edges of one side of the two arc-shaped blocking pieces, and a drilling shaft is interspersed on the inner wall of the triangular clamp.

[0007] In one example, the buffer support mechanism includes a connecting piece fixed to the other end of the electric hammer body, and first rubber pads are fixed to the edges of both ends of one side of the connecting piece.

[0008] In one example, a first handle is inserted into the other side of the connecting piece, a plurality of damping springs are fixedly provided at equal distances on one side of the first handle, and one end of each damping spring is respectively inserted and connected with the other side of the connecting piece.

[0009] In one example, an arc-shaped clamp is sleeved on the outer wall of one end of the electric hammer body, and connecting buckles are fixedly provided at both ends of the arc-shaped clamp, and screw holes are provided on one side of the two connecting buckles.

[0010] In one example, bolts are inserted into the inner walls of the two screw holes, and the outer walls at both ends of the bolts are respectively threadedly connected to the inner walls of the two screw holes.

[0011] In one example, a second rubber pad is fixedly provided on one side of the inner wall of the arc-shaped clip, and a second handle is fixedly provided at the middle position of the bottom of the arc-shaped clip.

[0012] The handheld brushless electric hammer proposed by the utility model can bring the following beneficial effects:

[0013] 1. This handheld brushless electric hammer can effectively block broken stones through the arc-shaped baffle to prevent users from being injured when drilling holes and excavating building walls. Especially when excavating walls in areas such as ceilings, broken stones produced by the holes fall vertically and are intercepted by the arc-shaped baffle. The arc-shaped baffle bar prevents them from sliding down and injuring workers. When cleaning later, the arc-shaped baffle can be directly pulled off the limit ring, thereby improving the safety of the device.

[0014] 2. This handheld brushless electric hammer, when the electric hammer body is in use, will generate a large recoil when it hits the wall. The first handle is connected by a connecting piece, and a damping spring is arranged between the first handle and the connecting piece, which greatly reduces vibration, thereby reducing recoil and improving the comfort of using the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 It is a structural schematic diagram of the electric hammer body of the utility model;

[0018] Figure 3 This is a schematic diagram of the structure of the detachable dust blocking mechanism of the utility model;

[0019] Figure 4It is a schematic diagram of the overall structure of the first handle of the utility model;

[0020] Figure 5 It is a schematic diagram of the overall structure of the second handle of the utility model.

[0021] In the figure: 1. electric hammer body; 2. triangular clamp; 3. limiting ring; 4. limiting groove; 5. arc-shaped baffle; 6. arc-shaped baffle strip; 7. magnetic block; 8. drilling shaft; 9. connecting piece; 10. first rubber pad; 11. first handle; 12. damping spring; 13. arc-shaped clamp; 14. connecting buckle; 15. screw hole; 16. second rubber pad; 17. second handle. DETAILED DESCRIPTION

[0022] In order to more clearly illustrate the overall concept of the present invention, a detailed description is given below in the form of examples in conjunction with the accompanying drawings.

[0023] The examples are as follows:

[0024] The utility model provides Figure 1-5 The handheld brushless electric hammer shown in the figure comprises an electric hammer body 1, and an ash blocking mechanism which is convenient for disassembly and assembly is arranged on the upper end of the electric hammer body 1.

[0025] The dust blocking mechanism convenient for disassembly and assembly comprises a triangular clamp 2 arranged at the output end of the electric hammer body 1, a limiting ring 3 is fixedly arranged on the outer wall of one end of the electric hammer body 1, a limiting groove 4 is arranged on the outer wall of the limiting ring 3, a magnetic block 7 is fixedly arranged on the inner wall of the limiting groove 4, arc-shaped blocking pieces 5 are interspersed on the outer walls at both ends of the limiting groove 4, and one side of the two arc-shaped blocking pieces 5 is respectively adsorbed on the two sides of the magnetic block 7, an arc-shaped blocking strip 6 is fixedly arranged on the edge of one side of the two arc-shaped blocking pieces 5, a drilling shaft 8 is interspersed on the inner wall of the triangular clamp 2, and the two arc-shaped blocking pieces 5 are made of metal material adsorbable by magnets, and after the arc-shaped blocking pieces 5 are adsorbed with the magnetic block 7, a certain amount of dust and gravel will not fall off, and the dust and gravel on the upper end can be poured out without drilling a hole for normal use;

[0026] Furthermore, the buffer support mechanism includes a connecting piece 9 fixed to the other end of the electric hammer body 1, and first rubber pads 10 are fixed to the edges of both ends of one side of the connecting piece 9.

[0027] A first grip 11 is inserted into the other side of the connecting piece 9, and a plurality of damping springs 12 are fixedly arranged at equal distances on one side of the first grip 11, and one end of each damping spring 12 is respectively inserted and connected with the other side of the connecting piece 9. The damping spring 12 can effectively reduce the vibration frequency, thereby playing a role of shock absorption, so that the recoil force experienced by the staff when holding the first grip 11 is reduced;

[0028] Furthermore, an arc-shaped clamp 13 is sleeved on the outer wall of one end of the electric hammer body 1 , and connecting buckles 14 are fixedly provided at both ends of the arc-shaped clamp 13 , and screw holes 15 are provided on one side of the two connecting buckles 14 .

[0029] Bolts are inserted through the inner walls of the two screw holes 15 , and outer walls at both ends of the bolts are threadedly connected to the inner walls of the two screw holes 15 .

[0030] A second rubber pad 16 is fixedly provided on one side of the inner wall of the arc-shaped clip 13, and a second handle 17 is fixedly provided in the middle position of the bottom of the arc-shaped clip 13. The second rubber pad 16 is provided on the inner wall of the arc-shaped clip 13 to effectively increase the friction between the arc-shaped clip 13 and the electric hammer body 1, so that the second handle 17 is not easy to fall off during use.

[0031] Working principle: when using the handheld brushless electric hammer in the present design, before using the electric hammer for drilling, the two arc-shaped baffles 5 are respectively inserted into the inside of the limit groove 4, so that they are adsorbed with the magnetic block 7 therein, and then fixed on the limit ring 3. When drilling the wall, the triangular clamp 2 clamps the drilling shaft 8 and drives the electric hammer body 1 to rotate and drill. The drilled dust and gravel are blocked by the arc-shaped baffle 5 so that they are not easy to injure the staff. Especially when drilling walls in areas such as ceilings, the gravel produced by the holes falls vertically and is intercepted by the arc-shaped baffle 5, and is not easy to slide down and injure the staff under the action of the arc-shaped baffle bar 6. When cleaning later, the arc-shaped baffle 5 can be directly pulled off the limit ring 3 to improve the installation efficiency. The safety of the device is improved, and when the electric hammer body 1 is used, the electric hammer will be transported to Gansu and collide with the wall to generate a large recoil force. The first handle 11 is connected by the connecting piece 9, and a damping spring 12 is arranged between the first handle 11 and the connecting piece 9, which greatly reduces the vibration, thereby reducing the recoil force and improving the comfort of the device. When the connecting piece 9 is connected to the electric hammer body 1 by screws, it contacts with the first rubber pad 10 to reduce wear, and the second handle 17 is clamped at the upper end of the electric hammer body 1 by the arc clip 13, and is fixed in the screw hole 15 on the connecting buckle 14 by bolts. It can also be unscrewed and removed when damaged later, and the second handle 17 of different lengths can also be replaced according to the user's usage habits.

[0032] Each embodiment in this specification is described in a progressive manner, and the same or similar parts between the embodiments can be referred to each other, and each embodiment focuses on the differences from other embodiments. In particular, for the system embodiment, since it is basically similar to the method embodiment, the description is relatively simple, and the relevant parts can be referred to the partial description of the method embodiment.

[0033] The above description is only an embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent substitution, improvement, etc. made within the spirit and principle of the present invention shall be included in the scope of the claims of the present invention.

Claims

1. A handheld brushless electric hammer, comprising an electric hammer body (1), characterized in that: The upper end of the electric hammer body (1) is provided with a dust blocking mechanism that is convenient for disassembly and assembly, and one end of the electric hammer body (1) is provided with a buffer support mechanism; The dust blocking mechanism that is easy to disassemble and assemble comprises a triangular clamp (2) arranged at the output end of the electric hammer body (1); a limit ring (3) is fixedly provided on the outer wall of one end of the electric hammer body (1); a limit groove (4) is provided on the outer wall of the limit ring (3); a magnetic block (7) is fixedly provided on the inner wall of the limit groove (4); arc-shaped blocking pieces (5) are inserted through the outer walls at both ends of the limit groove (4); one side of the two arc-shaped blocking pieces (5) is respectively adsorbed on the two sides of the magnetic block (7); an arc-shaped blocking strip (6) is fixedly provided at the edge of one side of the two arc-shaped blocking pieces (5); and a drilling shaft (8) is inserted through the inner wall of the triangular clamp (2).

2. A handheld brushless electric hammer according to claim 1, characterized in that: The buffer support mechanism comprises a connecting piece (9) fixed to the other end of the electric hammer body (1), and first rubber pads (10) are fixedly provided at the edges of both ends of one side of the connecting piece (9).

3. A handheld brushless electric hammer according to claim 2, characterized in that: A first handle (11) is inserted through the other side of the connecting piece (9), and a plurality of damping springs (12) are fixedly arranged at equal distances on one side of the first handle (11), and one end of each damping spring (12) is respectively inserted through and connected to the other side of the connecting piece (9).

4. A handheld brushless electric hammer according to claim 1, characterized in that: An arc-shaped clamp (13) is sleeved on the outer wall of one end of the electric hammer body (1), and connecting buckles (14) are fixedly provided at both ends of the arc-shaped clamp (13), and screw holes (15) are provided on one side of the two connecting buckles (14).

5. A handheld brushless electric hammer according to claim 4, characterized in that: Bolts are inserted through the inner walls of the two screw holes (15), and the outer walls at both ends of the bolts are respectively threadedly connected to the inner walls of the two screw holes (15).

6. A handheld brushless electric hammer according to claim 4, characterized in that: A second rubber pad (16) is fixedly provided on one side of the inner wall of the arc-shaped clamp (13), and a second handle (17) is fixedly provided at the middle position of the bottom of the arc-shaped clamp (13).

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