Handheld concrete breaking tool

Abstract

This utility model relates to the field of concrete crushing technology, specifically disclosing a handheld concrete crushing tool, including a crushing mechanism and a protective mechanism. The crushing mechanism includes a body assembly and a drill bit installed at its output end. The protective mechanism includes a protective component and a set of connecting components for locking the protective component onto the body assembly. This utility model effectively blocks concrete fragments and dust from directly contacting the machine body through an arc-shaped protective cover. When debris hits the arc-shaped protective cover, the cover is impacted and moves upward, causing the guide rod and limiting ring to move upward, compressing the buffer spring inside the sleeve. The elastic deformation of the buffer spring effectively absorbs the impact energy, playing a buffering role and reducing the impact of the impact on the protective cover and the entire tool, thus reducing the risk of vibration and damage to the tool.

Description

Technical Field

[0001] This utility model belongs to the field of concrete crushing technology, specifically a handheld concrete crushing tool. Background Technology

[0002] In the field of concrete breaking technology, handheld concrete breakers are indispensable equipment in construction and other scenarios, widely used for demolishing concrete structures, breaking up road surfaces, and chiseling away concrete components. Whether in urban infrastructure construction such as road renovation and bridge demolition, or in industrial plant renovation and building demolition projects, handheld concrete breakers play a crucial role. With their advantages of flexible operation and high mobility, they can efficiently operate in narrow spaces, complex terrains, and areas inaccessible to large machinery, greatly improving project progress and work efficiency, and creating conditions for subsequent construction procedures.

[0003] Traditional handheld concrete breakers typically consist only of a breaking mechanism, primarily composed of the machine body and a drill bit mounted at its output end. During breaking operations, the drill bit comes into direct contact with the concrete, generating tremendous impact force, causing concrete fragments and dust to fly everywhere. Lacking effective protective devices, these fragments and dust easily come into direct contact with the machine body. Over time, the machine body suffers continuous wear and erosion, severely threatening its structural integrity and stability, leading to a significantly shortened tool lifespan. Frequent maintenance and replacement not only increase project costs but also affect construction progress. Utility Model Content

[0004] To address the aforementioned technical problems, this utility model provides a handheld concrete crushing tool to solve the problem in the prior art where the drill bit directly contacts the concrete, generating a huge impact force, and concrete fragments and dust and other debris fly everywhere during the crushing operation, easily coming into direct contact with the machine body, resulting in a significant reduction in the tool's service life.

[0005] Handheld concrete breaking tool, including breaking mechanism and protective mechanism;

[0006] The crushing mechanism includes a body assembly and a drill bit installed at its output end;

[0007] The protective mechanism includes a protective component and a set of connecting components for locking the protective component to the fuselage component;

[0008] The protective assembly includes an arc-shaped protective cover with mounting holes. The arc-shaped protective cover is slidably connected to the outside of the drill bit through the mounting holes. A set of guide rods is fixedly connected to the top of the arc-shaped protective cover, and a limit ring is fixedly connected to the top of each set of guide rods.

[0009] Preferably, the protective assembly further includes a connecting block, a sleeve is fixedly connected to one side of the bottom of the connecting block, the guide rod is slidably connected to the sleeve by a limiting ring, and a buffer spring is provided inside the sleeve.

[0010] Preferably, the two ends of the buffer spring abut against the connecting block and the limiting ring respectively, forming an axial elastic floating structure of the protective cover.

[0011] Preferably, the machine body assembly includes a machine body, the drill bit is fixedly connected to the output end of the machine body, a handle is fixedly connected to the top of the machine body, and a set of mounting rings is fixedly connected to the bottom of the machine body.

[0012] Preferably, one set of the connecting components includes a threaded rod slidably connected to a mounting ring, a support block fixedly connected to the bottom of the threaded rod, and a locking ring threadedly connected to the outside of the threaded rod.

[0013] Preferably, the threaded rod passes through the connecting block and locks the connecting block between the mounting ring and the locking ring via a locking ring.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. This utility model can effectively block concrete fragments and dust and other debris through the arc-shaped protective cover, preventing them from directly contacting the machine body. When gravel hits the arc-shaped protective cover, the cover will be impacted and move upward, causing the guide rod and limit ring to move upward, squeezing the buffer spring inside the sleeve. The elastic deformation of the buffer spring can effectively absorb the impact energy, playing a buffering role, reducing the impact of the impact on the protective cover and the entire tool, and reducing the risk of vibration and damage to the tool.

[0016] 2. This utility model involves passing an arc-shaped protective cover through the drill bit, allowing the connecting block to rest against the mounting ring at the bottom of the machine body. Then, a threaded rod passes through the connecting block and the mounting ring. By rotating the locking ring, the connecting block is locked between the mounting ring and the locking ring, thus completing the fixation of the protective component. During this process, the tight cooperation of the threaded rod, connecting block, mounting ring, and locking ring ensures the stable installation of the protective component. If the arc-shaped protective cover is damaged during long-term use and needs replacement, simply remove the locking ring from the threaded rod to easily remove the threaded rod and the protective component for replacement. The operation is simple and quick, reducing maintenance time and costs. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2This is an exploded structural diagram of the present invention;

[0019] Figure 3 This is a schematic diagram of the protective mechanism of this utility model;

[0020] Figure 4 This is a schematic diagram of the crushing mechanism of this utility model.

[0021] In the diagram: 1. Crushing mechanism; 11. Machine body assembly; 111. Machine body; 112. Handle; 113. Mounting ring; 12. Drill bit; 2. Protective mechanism; 21. Protective component; 211. Arc-shaped protective cover; 212. Mounting hole; 213. Guide rod; 214. Limiting ring; 215. Connecting block; 216. Sleeve; 217. Buffer spring; 22. Connecting component; 221. Threaded rod; 222. Support block; 223. Locking ring. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] like Figures 1 to 4 As shown:

[0024] Example 1: This utility model provides a handheld concrete crushing tool, including a crushing mechanism 1 and a protective mechanism 2;

[0025] The crushing mechanism 1 includes a body assembly 11 and a drill bit 12 installed at its output end;

[0026] The protective mechanism 2 includes a protective component 21 and a set of connecting components 22 for locking the protective component 21 to the fuselage component 11;

[0027] The protective component 21 includes an arc-shaped protective cover 211, which has a mounting hole 212. The arc-shaped protective cover 211 is slidably connected to the outside of the drill bit 12 through the mounting hole 212. A set of guide rods 213 are fixedly connected to the top of the arc-shaped protective cover 211, and a limit ring 214 is fixedly connected to the top of each set of guide rods 213.

[0028] Specifically, the protective component 21 also includes a connecting block 215, a sleeve 216 is fixedly connected to one side of the bottom of the connecting block 215, and the guide rod 213 is slidably connected to the sleeve 216 through a limiting ring 214. The sleeve 216 is provided with a buffer spring 217 inside.

[0029] Specifically, the two ends of the buffer spring 217 abut against the connecting block 215 and the limiting ring 214 respectively, forming the axial elastic floating structure of the protective cover 211.

[0030] Specifically, the machine body assembly 11 includes a machine body 111, a drill bit 12 is fixedly connected to the output end of the machine body 111, a handle 112 is fixedly connected to the top of the machine body 111, and a set of mounting rings 113 is fixedly connected to the bottom of the machine body 111.

[0031] As can be seen from the above, during use, the arc-shaped protective cover 211 is passed through the drill bit 12, so that the connecting block 215 abuts against the mounting ring 113 at the bottom of the machine body 111. Then, the protective component 21 is fixed to the machine body 111 through a set of connecting components 22, ensuring the stable installation of the protective component 21 and providing reliable safety for subsequent crushing operations. Holding the handle 112 on the top of the machine body 111, the drill bit 12 is aligned with the target concrete, and the machine body 111 is started. Its power output drives the drill bit 12 to start working and crushing the concrete. During the crushing process, the arc-shaped protective cover 211 can effectively block concrete fragments and dust and other debris, preventing them from directly contacting the machine body 111, avoiding damage to the machine body 111, and extending the service life of the tool. When the curved protective cover 211 is in operation, its curved design helps guide the falling of the crushed stone, reduces the accumulation of the crushed stone in the crushing area, and improves the crushing efficiency. When a crushed stone hits the curved protective cover 211, the protective cover 211 will be impacted and move upward, causing the guide rod 213 and the limiting ring 214 to move upward, squeezing the buffer spring 217 in the sleeve 216. The elastic deformation of the buffer spring 217 can effectively absorb the impact energy, play a buffering role, reduce the impact of the impact on the protective cover 211 and the entire tool, and reduce the vibration and damage risk of the tool. When the impact force disappears, the buffer spring 217 returns to its original deformation, pushes the limiting ring 214 and the guide rod 213, and resets the protective cover 211, ensuring that the protective component 21 is always in good working condition and continues to play a protective role.

[0032] like Figure 3 and Figure 4 As shown:

[0033] Example 2: This example is basically the same as the previous example, except that a set of connecting components 22 includes a threaded rod 221, which is slidably connected to the mounting ring 113. A support block 222 is fixedly connected to the bottom of the threaded rod 221, and a locking ring 223 is threadedly connected to the outside of the threaded rod 221.

[0034] Specifically, the threaded rod 221 passes through the connecting block 215 and locks the connecting block 215 between the mounting ring 113 and the locking ring 223 via the locking ring 223.

[0035] As described above, the arc-shaped protective cover 211 is passed through the drill bit 12, causing the connecting block 215 to abut against the mounting ring 113 at the bottom of the machine body 111. Then, the threaded rod 221 is passed through the connecting block 215 and the mounting ring 113. By rotating the locking ring 223, the connecting block 215 is locked between the mounting ring 113 and the locking ring 223, thus completing the fixation of the protective component 21. During this process, the tight fit between the threaded rod 221, the connecting block 215, the mounting ring 113, and the locking ring 223 ensures the stable installation of the protective component 21. If the arc-shaped protective cover 211 is damaged during long-term use and needs to be replaced, it can be easily removed by simply removing the locking ring 223 from the threaded rod 221, allowing for easy removal of the threaded rod 221 and the protective component 21 for replacement. This simple and quick operation reduces maintenance time and costs.

[0036] The embodiments of this utility model are given for the purpose of illustration and description. Although the embodiments of this utility model have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the utility model. Any changes, modifications, substitutions and variations made by those skilled in the art to the above embodiments within the scope of this utility model should be included within the protection scope of this utility model.

Claims

1. A handheld concrete breaking tool, characterized in that, It includes a crushing mechanism (1) and a protective mechanism (2); The crushing mechanism (1) includes a body assembly (11) and a drill bit (12) installed at its output end; The protective mechanism (2) includes a protective component (21) and a set of connecting components (22) for locking the protective component (21) to the fuselage component (11); The protective component (21) includes an arc-shaped protective cover (211), which has a mounting hole (212). The arc-shaped protective cover (211) is slidably connected to the outside of the drill bit (12) through the mounting hole (212). A set of guide rods (213) are fixedly connected to the top of the arc-shaped protective cover (211), and a limit ring (214) is fixedly connected to the top of each set of guide rods (213).

2. The handheld concrete breaking tool as described in claim 1, characterized in that, The protective component (21) also includes a connecting block (215), a sleeve (216) is fixedly connected to one side of the bottom of the connecting block (215), the guide rod (213) is slidably connected to the sleeve (216) by a limiting ring (214), and a buffer spring (217) is provided inside the sleeve (216).

3. The handheld concrete breaking tool as described in claim 2, characterized in that, The two ends of the buffer spring (217) abut against the connecting block (215) and the limiting ring (214) respectively, forming an axial elastic floating structure of the protective cover (211).

4. The handheld concrete breaking tool as described in claim 3, characterized in that, The machine body assembly (11) includes a machine body (111), the drill bit (12) is fixedly connected to the output end of the machine body (111), a handle (112) is fixedly connected to the top of the machine body (111), and a set of mounting rings (113) is fixedly connected to the bottom of the machine body (111).

5. The handheld concrete breaking tool as described in claim 4, characterized in that, A set of the connecting components (22) includes a threaded rod (221) which is slidably connected to a mounting ring (113), a support block (222) is fixedly connected to the bottom of the threaded rod (221), and a locking ring (223) is threadedly connected to the outside of the threaded rod (221).

6. The handheld concrete breaking tool as described in claim 5, characterized in that, The threaded rod (221) passes through the connecting block (215) and locks the connecting block (215) between the mounting ring (113) and the locking ring (223) through the locking ring (223).

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