Concrete knocking electric hammer
By designing cross support frames, limit slide pipes, limit slide rods, adjustment nuts, support springs and protective covers in the knocking hammer, the problem of debris and dust pollution during concrete drilling is solved, and the cleanliness of the working environment and the convenient collection of debris are achieved.
Patent Information
- Application Number
- CN202420525157.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-19
- Publication Date
- 2025-03-07
- Estimated Expiration
- 2034-03-19
AI Technical Summary
When drilling concrete with a knock hammer, the strong impact and rotational force will cause a large amount of debris and dust to be produced by the concrete, resulting in pollution of the working environment and increasing the cumbersomeness of subsequent cleaning.
A concrete strike electric hammer is designed, using cross support frames, limit slide pipes, limit slide rods, adjustment nuts, support springs and protective covers. Through the coordination of these components, the protection of the drill bit and the collection of concrete debris are achieved.
It effectively prevents debris and dust from scattering from concrete hitting, keeps the working environment clean, and facilitates the collection of debris through the collection box, reducing the difficulty of subsequent cleaning.
Smart Images
Figure CN222571228U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of electric hammers, in particular to a concrete striking electric hammer. Background Art
[0002] A percussion electric hammer is an electric tool that is mainly used for drilling holes in hard materials such as concrete, masonry, floor slabs, brick walls, and stone. Its working principle is mainly to drive a piston of a crankshaft connecting rod through an electric motor to reciprocate and compress the air in the cylinder, causing the air pressure in the cylinder to change periodically. This changing air pressure will drive the hammer in the cylinder to reciprocate and strike the top of the drill bit, thereby achieving the drilling operation of the material. Since its working principle is similar to hitting a drill bit with a hammer, it is named a percussion electric hammer.
[0003] The functions of percussion electric hammer mainly include: Drilling function: Percussion electric hammer is mainly used to drill holes in hard materials such as concrete, masonry, stone, etc. Its powerful impact force and rotational force enable it to complete the drilling task efficiently. Breaking hard materials: In addition to drilling, percussion electric hammer can also be used to break hard materials such as concrete and stone. Especially in the construction and decoration industries, it is very useful for demolishing hard structures such as walls and floors. Strong adaptability: Percussion electric hammer has a variety of specifications and models, which can be selected according to different operation requirements.
[0004] However, when the prior art is actually used, during the process of drilling holes in concrete using a percussion electric hammer, a large amount of concrete debris and dust will be generated during the drilling process due to its strong impact force and rotational force. When the working environment of the required drilling holes needs to be kept clean, the concrete debris and dust generated by the drilling will cause certain pollution to the surrounding environment, making the subsequent cleaning more cumbersome. Utility Model Content
[0005] The purpose of the utility model is to provide a concrete percussion electric hammer to solve the problem raised in the above-mentioned background technology that in the process of using the percussion electric hammer to drill holes in concrete, due to its strong impact force and rotational force, a large amount of concrete debris and dust will be generated when drilling holes in the concrete. When the working environment of the required drilling holes needs to be kept clean, the concrete debris and dust generated by the drilling holes will cause certain pollution to the surrounding environment, making the subsequent cleaning more cumbersome.
[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: it includes an electric hammer main body, the front end outer curved surface of the electric hammer main body is threadedly connected to a cross support frame, the front end outer curved surface of the electric hammer main body is threadedly connected to a fastening ring for locking and fastening the two sides of the cross support frame, the front end four corners of the cross support frame are penetrated and fixedly installed with a limiting slide tube, the inner wall of the limiting slide tube is movably connected with a limiting slide rod, the front end outer curved surface of the limiting slide rod is threadedly connected with an adjusting nut, the rear outer circumferential surface of the adjusting nut is rotatably connected with a supporting spring through a rotating shaft, the front top end of the limiting slide rod is fixedly installed with a protective cover, the middle part of the rear end of the protective cover is provided with a through hole, the bottom of the protective cover is penetrated and fixedly installed with a collection box, and the lower end opening of the collection box is interference-connected with a sealing cover.
[0007] Preferably, an outer curved surface at the front end of the electric hammer body is provided with an external thread, a support handle is fixedly installed on the rear side of the front end of the electric hammer body, and a drill bit for hammering concrete is fixedly installed in the middle of the front top of the electric hammer body.
[0008] Preferably, there are two fastening rings, which are symmetrically distributed on both sides of the front end of the electric hammer body.
[0009] Preferably, there are four limit sliding tubes, which are symmetrically distributed at the four corners of the front end of the cross support frame.
[0010] Preferably, the front top of the limiting slide rod is provided with an external thread, and the rear top of the supporting spring is rotatably connected to the four corners of the front end of the cross support frame through a rotating shaft, so that the limiting slide rod is elastically supported by the supporting spring and the adjusting nut.
[0011] Preferably, the protective cover is made of a transparent acrylic material, and the drill bit passes through the through hole and extends forward to the inside of the protective cover, so that the drill bit is protected by the protective cover, and a non-slip pad is bonded to the front opening of the protective cover.
[0012] Compared with the prior art, the beneficial effects of the utility model are:
[0013] 1. When the electric hammer body pushes the drill bit to continuously strike the concrete forward, the electric hammer body will drive the cross support frame to move forward. When the cross support frame moves forward, it will drive the limit slide tube to move forward in a straight line along the outer curved surface of the limit slide rod, so that the limit slide tube and the limit slide rod can play a linear limit role in the forward movement of the cross support frame. When the cross support frame moves forward in a straight line, it will push the compression support spring. When the support spring is pushed and compressed, the elastic potential energy generated by the compression deformation of the support spring will push the front end of the protective cover to keep in contact with the concrete striking position in turn, so that when the drill bit continues to move forward, the protective cover can always maintain its protective effect. At the same time, when the drill bit strikes the concrete, the concrete debris generated by the striking will fall into the collection box under the action of its own gravity. The concrete debris can be collected by opening the sealing cover, thereby realizing the protective collection of debris and dust generated by the concrete striking.
[0014] 2. The utility model also realizes that when the adjusting nut is rotated, the adjusting nut will move forward and backward due to the force generated by the threaded connection with the outer curved surface of the front end of the limiting slide rod. When the adjusting nut moves forward and backward, the supporting spring will be stretched or compressed. When the supporting spring is stretched or compressed, the elastic potential energy generated by its own deformation will sequentially drive the limiting slide rod to move forward and backward along the inner wall of the limiting slide tube. When the limiting slide rod moves forward and backward in a straight line, it will drive the protective cover to move forward and backward in a straight line, so that the initial position of the protective cover can be easily adjusted by rotating the adjusting nut. At the same time, when the fastening ring is rotated to loosen, the cross support frame and the protective cover can be removed from the front end of the electric hammer body by rotating the cross support frame, thereby facilitating the adjustment and removal of the protective cover. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 The overall structure of a concrete hammer is shown in the following figure. Figure 1 ;
[0016] Figure 2 The overall structure of a concrete hammer is shown in the following figure. Figure 2 ;
[0017] Figure 3 The overall structure of a concrete hammer is shown in the following figure. Figure 3 .
[0018] In the figure: 1. Electric hammer body; 2. Support handle; 3. Drill bit; 4. Cross support frame; 5. Fastening ring; 6. Limit slide tube; 7. Limit slide rod; 8. Adjusting nut; 9. Support spring; 10. Protective cover; 11. Through hole; 12. Collection box; 13. Sealing cover. DETAILED DESCRIPTION
[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0020] See also Figure 1-3 The utility model provides a technical solution: comprising an electric hammer body 1, wherein the front end outer curved surface of the electric hammer body 1 is provided with an external thread, a support handle 2 is fixedly installed at the rear side of the front end of the electric hammer body 1, and a drill bit 3 for striking concrete is fixedly installed at the middle part of the front top of the electric hammer body 1;
[0021] The front end outer curved surface of the electric hammer body 1 is threadedly connected with a cross support frame 4, and the front end outer curved surface of the electric hammer body 1 is threadedly connected with a fastening ring 5 for locking and fastening the two sides of the cross support frame 4, and there are two fastening rings 5, which are symmetrically distributed on both sides of the front end of the electric hammer body 1, and the four corners of the front end of the cross support frame 4 are penetrated and fixedly installed with a limiting slide tube 6, and there are four limiting slide tubes 6, which are symmetrically distributed at the four corners of the front end of the cross support frame 4, and the inner wall of the limiting slide tube 6 is movably connected with the limiting slide rod 7, and the front top of the limiting slide rod 7 is provided with an external thread, and the front end outer curved surface of the limiting slide rod 7 is threadedly connected with an adjusting nut 8, and the outer peripheral surface of the rear side of the adjusting nut 8 is rotatably connected with a supporting spring through a rotating shaft. Spring 9, and the rear top of the support spring 9 is rotatably connected to the four corners of the front end of the cross support frame 4 through a rotating shaft, so that the limiting slide bar 7 is elastically supported by the support spring 9 and the adjusting nut 8, and a protective cover 10 is fixedly installed on the front top of the limiting slide bar 7, and the protective cover 10 is made of transparent acrylic material, a through hole 11 is opened in the middle of the rear end of the protective cover 10, and the drill bit 3 passes through the through hole 11 forward and extends to the inside of the protective cover 10, so that the drill bit 3 is protected by the protective cover 10, and a non-slip pad is bonded to the front end opening of the protective cover 10, and a collection box 12 is fixedly installed on the bottom of the protective cover 10, and a sealing cover 13 is interference connected at the lower end opening of the collection box 12.
[0022] Working principle: When in use, the utility model opens the electric hammer body 1 and the support handle 2 by hand, and the drill bit 3 can be used to knock concrete. When the drill bit 3 is used to knock concrete, the front opening of the protective cover 10 will be driven in turn to fit the concrete knocking position, so that the concrete knocking position can be protected by the protective cover 10, so that the concrete debris and dust generated by the knocking of the drill bit 3 will not be scattered, and the transparent acrylic material of the protective cover 10 will not affect the use of the drill bit 3. When the electric hammer body 1 pushes the drill bit 3 to continue to knock concrete forward, the electric hammer body 1 will drive the cross support frame 4 to move forward. When the cross support frame 4 moves forward, it will drive the limit slide tube 6 to move forward in a straight line along the outer curved surface of the limit slide rod 7. Therefore, the limiting sliding tube 6 and the limiting sliding rod 7 can play a linear limiting role in the forward movement of the cross support frame 4. When the cross support frame 4 moves forward linearly, it will push the compression support spring 9. When the support spring 9 is pushed and compressed, the elastic potential energy generated by the compression deformation of the support spring 9 will push the front end of the protective cover 10 to keep in contact with the concrete knocking position in turn, so that when the drill bit 3 continues to move forward, the protective cover 10 can always maintain its protective function. At the same time, when the drill bit 3 knocks on the concrete, the concrete debris generated by the knocking will fall into the collection box 12 under the action of its own gravity. The concrete debris can be collected by opening the sealing cover 13, thereby realizing the function of facilitating the collection of debris and dust generated by the knocking of the concrete.
[0023] At the same time, by rotating the adjusting nut 8, when the adjusting nut 8 rotates, the adjusting nut 8 will move forward and backward due to the force generated by the threaded connection with the outer curved surface of the front end of the limiting slide rod 7. When the adjusting nut 8 moves forward and backward, the supporting spring 9 will be stretched or compressed. When the supporting spring 9 is stretched or compressed by times, the elastic potential energy generated by its own deformation will drive the limiting slide rod 7 to move forward and backward along the inner wall of the limiting slide tube 6 in turn. When the limiting slide rod 7 moves forward and backward in a straight line, it will drive the protective cover 10 to move forward and backward in a straight line, so that by rotating the adjusting nut 8, the initial position of the protective cover 10 can be easily adjusted. At the same time, when the fastening ring 5 is rotated to loosen, the cross support frame 4 and the protective cover 10 can be removed from the front end of the electric hammer body 1 by rotating the cross support frame 4, thereby realizing the function of facilitating the adjustment and removal of the protective cover 10.
[0024] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.
[0025] 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 concrete percussion electric hammer, characterized by: The invention comprises an electric hammer body (1), wherein the front end outer curved surface of the electric hammer body (1) is threadedly connected with a cross support frame (4), the front end outer curved surface of the electric hammer body (1) is threadedly connected with a fastening ring (5) for locking and fastening the two sides of the cross support frame (4), the front end four corners of the cross support frame (4) are penetrated and fixedly installed with a limit slide tube (6), the inner wall of the limit slide tube (6) is movably connected with a limit slide rod (7), the front end outer curved surface of the limit slide rod (7) is threadedly connected with an adjustment nut (8), the rear side outer peripheral surface of the adjustment nut (8) is rotatably connected with a support spring (9) through a rotating shaft, the front top end of the limit slide rod (7) is fixedly installed with a protective cover (10), the middle part of the rear end of the protective cover (10) is provided with a through hole (11), the bottom of the protective cover (10) is penetrated and fixedly installed with a collection box (12), and the lower end opening of the collection box (12) is interference-connected with a sealing cover (13).
2. A concrete striking electric hammer according to claim 1, characterized in that: The front end outer curved surface of the electric hammer body (1) is provided with an external thread, a support handle (2) is fixedly installed on the rear side of the front end of the electric hammer body (1), and a drill bit (3) for striking concrete is fixedly installed in the middle of the front top of the electric hammer body (1).
3. A concrete striking electric hammer according to claim 2, characterized in that: There are two fastening rings (5), which are symmetrically distributed on both sides of the front end of the electric hammer body (1).
4. A concrete striking electric hammer according to claim 3, characterized in that: There are four limit sliding pipes (6) which are symmetrically distributed at the four corners of the front end of the cross support frame (4).
5. A concrete striking electric hammer according to claim 4, characterized in that: The front top of the limit slide bar (7) is provided with an external thread, and the rear top of the support spring (9) is rotatably connected to the four corners of the front end of the cross support frame (4) through a rotating shaft, so that the limit slide bar (7) is elastically supported by the support spring (9) in conjunction with the adjusting nut (8).
6. A concrete striking electric hammer according to claim 5, characterized in that: The protective cover (10) is made of a transparent acrylic material, and the drill bit (3) passes through the through hole (11) and extends into the interior of the protective cover (10), so that the drill bit (3) is protected by the protective cover (10), and a non-slip pad is bonded to the front opening of the protective cover (10).