Rock breaker with anti-stone-splashing function
By designing protective structures on the electric hammer, including mounting plates, connecting rods, and protective nets, the problem of flying debris when the electric hammer is drilling holes or breaking stone is solved, ensuring user safety and not affecting its use.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG MINGKUN POWER TOOLS CO LTD
- Filing Date
- 2025-07-29
- Publication Date
- 2026-07-24
AI Technical Summary
When using existing electric picks to drill holes or break stone, the guard plate obstructs the view and hinders use, and flying debris may injure the user.
A protective structure has been designed, including a mounting plate, first and second connecting rods, a spring, a connector, and a protective net, which are connected by threads, allowing the protective structure to block flying debris without hindering use.
It effectively prevents flying debris without affecting visibility or usability, protecting user safety while also facilitating maintenance.
Smart Images
Figure CN224544466U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of power tool technology, specifically to an electric pick that prevents flying rock fragments. Background Technology
[0002] An electric pick is a double-insulated handheld power tool powered by a single-phase series-wound motor. It is safe, reliable, efficient, and easy to operate. It is widely used in pipeline laying, machinery installation, water supply and drainage facility construction, interior decoration, port facility construction, and other construction projects. It is suitable for use with picks or other appropriate accessories, such as chisels and shovels, to break, level, excavate, groove, and cut concrete, masonry structures, and asphalt pavements.
[0003] When using an electric hammer to drill holes or break stones, the impact can easily cause flying debris that could injure the user. Therefore, a protective plate is needed on the electric hammer. However, with existing electric hammers, the protective plate needs to cover the impact area to block the debris. But during operation, the protective plate obstructs the user's view, which is not conducive to the use of the electric hammer. At the same time, when drilling or breaking deeper parts of the stone, the protective plate can hinder the use of the electric hammer. Utility Model Content
[0004] The purpose of this invention is to provide an electric pick that prevents flying debris, in order to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: an electric pickaxe that prevents flying rock fragments, comprising:
[0006] The electric pick body has a chuck, and the electric pick body has a protective structure through the chuck, and the protective structure has a protective net.
[0007] The protective structure includes a mounting plate. A first connecting rod is provided at the top, bottom, and both sides of one end of the mounting plate. A first connecting member is provided at the end of the outer surface of the first connecting rod near the mounting plate. A spring is provided inside the first connecting rod. A second connecting rod is movably provided at one end of the first connecting rod. A second connecting member is provided at one end of the outer surface of the second connecting rod. A top plate is rotatably provided on the second connecting rod.
[0008] By adopting the above technical solution, when users drill holes or break stones, the protective structure can cover the impact point of the stone, so that the protective net can block the broken stones and prevent them from flying and injuring the user. If the user drills or breaks deeper into the stone, the top plate rests on the stone, and then the second connecting rod is inserted into the first connecting rod by the squeezing of the electric hammer, so that the protective structure will not hinder the use of the electric hammer.
[0009] Preferably, one end of the outer surface of the chuck and the inner surface of the mounting plate are both provided with threads, and the chuck is threadedly connected to the mounting plate through the threads.
[0010] By adopting the above technical solution, the mounting plate can be installed and removed from the clamp via threads, which facilitates the repair of the protective structure if it is damaged.
[0011] Preferably, the angle between the first connecting rod and the mounting plate is greater than 90°, and the first connecting rod has a movable cavity inside. The size of the movable cavity inside the first connecting rod is adapted to the size of the spring, and the spring is disposed inside the first connecting rod through the movable cavity.
[0012] By adopting the above technical solution, the spring can be stably set inside the first connecting rod through the movable cavity, and the angle between the first connecting rod and the mounting plate is greater than 90°, thereby expanding the coverage area of the protective structure.
[0013] Preferably, a retaining plate is provided at one end of the second connecting rod near the mounting plate. The size of the retaining plate on the second connecting rod is adapted to the size of the movable cavity on the first connecting rod. The retaining plate on the second connecting rod is slidably connected to the first connecting rod through the movable cavity.
[0014] By adopting the above technical solution, the retaining plate on the second connecting rod can prevent the second connecting rod from falling off the first connecting rod and avoid the spring from pushing the second connecting rod off the first connecting rod.
[0015] Preferably, the end of the second connecting rod away from the mounting plate is provided with a connecting hole, and the second connecting rod is rotatably connected to the top plate through the connecting hole.
[0016] By adopting the above technical solution, the top plate can rotate on the second connecting rod, allowing the top plate to overlap with stones of different shapes.
[0017] Preferably, the first connecting rod and the second connecting rod are connected to the protective netting via a first connector and a second connector.
[0018] By adopting the above technical solution, the protective net can be stably installed on the first connecting rod and the second connecting rod through the first connecting member and the second connecting member.
[0019] Compared with the prior art, the beneficial effects of this utility model are: the electric pick that prevents flying stone fragments is equipped with a protective structure and a protective net. The protection can not only block the stone fragments, but also will not affect or obstruct the user's view, making it convenient to use the electric pick. At the same time, when the electric pick is drilling or breaking deeper into the stone, the protective structure can extend and retract between the first and second connecting rods, so that the protective structure will not hinder the use of the electric pick. Attached Figure Description
[0020] Figure 1 This is a front view of the structure of this utility model;
[0021] Figure 2 This is a front view of the protective structure of this utility model;
[0022] Figure 3 This is a front sectional view of the protective structure of this utility model;
[0023] Figure 4 This is a side view of the protective structure of this utility model.
[0024] In the diagram: 1. Electric pick body; 2. Chuck; 3. Protective structure; 30. Mounting plate; 31. First connecting rod; 32. First connector; 33. Spring; 34. Second connecting rod; 35. Second connector; 36. Top plate; 4. Protective net. Detailed Implementation
[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present utility model, and not all of them. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.
[0026] Please see Figure 1-4 This utility model provides an embodiment of an electric pickaxe that prevents flying debris, comprising: an electric pick body 1, a chuck 2 disposed on the electric pick body 1, a protective structure 3 disposed on the electric pick body 1 via the chuck 2, and a protective net 4 disposed on the protective structure 3; the protective structure 3 includes a mounting plate 30, with first connecting rods 31 disposed on the top, bottom, and both sides of one end of the mounting plate 30, a first connecting member 32 disposed on the outer surface of the first connecting rod 31 near the end of the mounting plate 30, and a spring 33 disposed inside the first connecting rod 31. One end of the structure is movably provided with a second connecting rod 34, and one end of the outer surface of the second connecting rod 34 is provided with a second connecting piece 35. The second connecting rod 34 is rotatably provided with a top plate 36. When the user drills or breaks the stone, the protective structure 3 can cover the impact point of the stone, so that the protective net 4 can block the broken stone and prevent the broken stone from flying and injuring the user. When the user drills or breaks deeper parts of the stone, the top plate 36 rests on the stone, and then the second connecting rod 34 enters the first connecting rod 31 under the pressure of the electric hammer, so that the protective structure 3 will not hinder the use of the electric hammer.
[0027] In this embodiment, one end of the outer surface of the chuck 2 and the inner surface of the mounting plate 30 are both provided with threads. The chuck 2 is threadedly connected to the mounting plate 30 through the threads. The mounting plate 30 can be installed and removed from the chuck 2 through the threads. If the protective structure 3 is damaged, it is convenient to repair the protective structure 3.
[0028] In this embodiment, the angle between the first connecting rod 31 and the mounting plate 30 is greater than 90°. The first connecting rod 31 has a movable cavity inside. The size of the movable cavity inside the first connecting rod 31 is adapted to the size of the spring 33. The spring 33 is set inside the first connecting rod 31 through the movable cavity. Through the movable cavity, the spring 33 can be stably set inside the first connecting rod 31. The angle between the first connecting rod 31 and the mounting plate 30 is greater than 90°, thus expanding the coverage area of the protective structure 3.
[0029] In this embodiment, a retaining plate is provided at one end of the second connecting rod 34 near the mounting plate 30. The size of the retaining plate on the second connecting rod 34 is adapted to the size of the movable cavity on the first connecting rod 31. The retaining plate on the second connecting rod 34 is slidably connected to the first connecting rod 31 through the movable cavity. The retaining plate on the second connecting rod 34 can prevent the second connecting rod 34 from falling off the first connecting rod 31 and prevent the spring 33 from pushing the second connecting rod 34 off the first connecting rod 31.
[0030] In this embodiment, the end of the second connecting rod 34 away from the mounting plate 30 is provided with a connecting hole. The second connecting rod 34 is rotatably connected to the top plate 36 through the connecting hole. The top plate 36 can rotate on the second connecting rod 34, so that the top plate 36 can overlap with stones of different shapes.
[0031] In this embodiment, the first connecting rod 31 and the second connecting rod 34 are connected to the protective net 4 through the first connecting piece 32 and the second connecting piece 35. The protective net 4 can be stably installed on the first connecting rod 31 and the second connecting rod 34 through the first connecting piece 32 and the second connecting piece 35.
[0032] Working principle: When the user drills or breaks the stone, the protective structure 3 can cover the impact point of the stone, and the protective net 4 can block the broken stone to prevent the broken stone from flying and injuring the user. If the user drills or breaks a deeper part of the stone, the top plate 36 is placed on the stone, and then the second connecting rod 34 is inserted into the first connecting rod 31 by the pressure of the electric hammer, so that the protective structure 3 will not hinder the use of the electric hammer.
[0033] For those skilled in the art, this invention is not limited to the details of the exemplary embodiments described above, and can be implemented in other specific forms without departing from the spirit or scope of this invention. Therefore, the embodiments of this invention are exemplary and not restrictive. The scope of this invention is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
Claims
1. An electric pickaxe designed to prevent flying debris, characterized in that, include: Electric pick body (1), the electric pick body (1) is provided with a chuck (2), the electric pick body (1) is provided with a protective structure (3) through the chuck (2), and a protective net (4) is provided on the protective structure (3); The protective structure (3) includes a mounting plate (30). The top, bottom and both sides of one end of the mounting plate (30) are provided with first connecting rods (31). The outer surface of the first connecting rod (31) near the end of the mounting plate (30) is provided with a first connector (32). The first connecting rod (31) is provided with a spring (33). The first connecting rod (31) is movably provided with a second connecting rod (34). The outer surface of the second connecting rod (34) is provided with a second connector (35). The second connecting rod (34) is rotatably provided with a top plate (36).
2. The electric pick with anti-rock-splashing protection according to claim 1, characterized in that: The chuck (2) has threads on one end of its outer surface and on the inner surface of its mounting plate (30). The chuck (2) is threaded to the mounting plate (30) via the threads.
3. The electric pickaxe for preventing flying debris according to claim 1, characterized in that: The angle between the first connecting rod (31) and the mounting plate (30) is greater than 90°. The first connecting rod (31) has a movable cavity inside. The size of the movable cavity inside the first connecting rod (31) is adapted to the size of the spring (33). The spring (33) is disposed inside the first connecting rod (31) through the movable cavity.
4. The electric pick with anti-rock-splashing protection according to claim 3, characterized in that: The second connecting rod (34) has a retaining plate at one end near the mounting plate (30). The size of the retaining plate on the second connecting rod (34) is adapted to the size of the movable cavity on the first connecting rod (31). The retaining plate on the second connecting rod (34) is slidably connected to the first connecting rod (31) through the movable cavity.
5. The electric pick with anti-rock-splashing protection according to claim 1, characterized in that: The second connecting rod (34) has a connecting hole at the end away from the mounting plate (30), and the second connecting rod (34) is rotatably connected to the top plate (36) through the connecting hole.
6. The electric pickaxe for preventing flying debris according to claim 1, characterized in that: The first connecting rod (31) and the second connecting rod (34) are connected to the protective net (4) through the first connecting piece (32) and the second connecting piece (35).