A stepped electric impact punch

Abstract

The utility model discloses a step type electric impact chisel relates to chisel technical field, and solves the problem of existing electric impact chisel stone discharge difficult, broken particle rough. It includes integrally formed chisel handle and pick head, and the pick head away from the end of chisel handle is equipped with inclined plane and forms the blade edge, and the pick head surface from the blade edge to the direction of chisel handle is equipped with gradually thickening step mechanism, and this mechanism contains at least two steps, and the thickness difference of adjacent step is 1 3mm, and the outside of step structure is equipped with a circle of material retaining step. Step mechanism and material retaining step cooperate and form directional stone guide channel, make the stone along the step fall difference fast discharge, avoid accumulation and jam; multiple steps form multiple stress surface, and the impact force is dispersed to realize secondary crushing, and reduce large broken particle, and the step gradually thickening design optimizes the stress of pick head, prolongs the tool life, and is applicable to building construction, ore mining and the like scene.

Description

Technical Field

[0001] This utility model relates to the field of chisel technology, specifically to a stepped electric impact chisel. Background Technology

[0002] In construction, mining, and equipment maintenance, electric impact chisels are commonly used crushing tools. Their core function relies on the impact force transmitted through the chisel handle to crush target materials via the cutting edge of the chisel head. Most existing electric impact chisels have a smooth cylindrical or conical chisel head with a gradually transitioning cross-sectional thickness from the cutting edge to the chisel handle.

[0003] However, this type of structure has obvious drawbacks in actual use: on the one hand, the crushed stone tends to accumulate between the surface of the pick and the working surface, making it difficult to discharge quickly. This not only hinders the continuous contact between the cutting edge and the material to be crushed, reducing crushing efficiency, but may also cause uneven force on the pick due to stone jamming, shortening the tool's service life; on the other hand, the gently transitioning pick structure has a weak effect on dispersing impact force, and the material tends to form large fragments during the crushing process, requiring repeated impacts to achieve a fine crushing effect, further increasing working time and energy consumption.

[0004] In summary, existing electric impact chisels can no longer meet the requirements for efficient and precise operation in terms of stone discharge efficiency and crushing fineness. There is an urgent need for a structural improvement scheme that can quickly remove stone and crush it into finer pieces. Utility Model Content

[0005] To address the shortcomings in the prior art, this utility model provides a stepped electric impact chisel.

[0006] The technical solution adopted by this utility model is: a stepped electric impact chisel, including an integrally formed chisel handle and a pick head. The end of the pick head away from the chisel handle is provided with a bevel to form the cutting edge of the pick head. A stepped mechanism with gradually increasing thickness is provided on the surface of the pick head from the cutting edge to the chisel handle. The stepped mechanism includes at least two steps, the thickness difference between adjacent steps is 1-3mm, and a ring of material-stopping steps is provided on the outer side of the stepped structure.

[0007] Furthermore, the step has an arc-shaped structure on the side near the cutting edge.

[0008] Furthermore, the surface of the retaining step has a thickened slope, the slope of which is adapted to the transition slope between the steps.

[0009] Furthermore, the bevel angle of the cutting edge tip is 15°-20°.

[0010] Furthermore, the chisel handle is an SDS PLUS standard handle.

[0011] The beneficial effects of this utility model are: 1. Improved Crushed Stone Discharge Efficiency: This patent utilizes a stepped mechanism on the surface of the pick head that gradually thickens from the cutting edge to the shank, combined with an outer retaining step, to form a directional crushed stone flow channel. During the crushing process, the crushed stone can slide quickly down the stepped drop, while the retaining step prevents the crushed stone from accumulating at the base of the pick head, effectively solving the problem of crushed stone jamming in existing chisels, ensuring continuous and stable contact between the cutting edge and the material to be crushed, and significantly improving the efficiency of crushing operations.

[0012] 2. Enhanced Crushing Efficiency: The stepped thickness difference (1-3mm) of the stepped mechanism creates a multi-segmented force-bearing surface on the pick head. During impact, the impact force is dispersed to different stepped positions, resulting in multiple-frequency and multi-angle secondary crushing of the material. Compared to existing smooth transition structures, this significantly reduces the generation of large particles, achieving fine crushing of materials without the need for repeated impacts, thus reducing operating time and costs.

[0013] 3. Optimize stress state and extend tool life: On the one hand, the rapid discharge of crushed stone avoids local overload of the pickaxe head caused by jamming; on the other hand, the gradual thickening design of the stepped mechanism makes the overall strength distribution of the pickaxe head more reasonable, which can better withstand impact loads, reduce wear and tear such as pickaxe head deformation and cracking, and effectively extend the service life of the electric impact chisel.

[0014] In addition to the objectives, features and advantages described above, this utility model has other objectives, features and advantages.

[0015] The present invention will now be described in further detail with reference to the accompanying drawings. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model.

[0017] Figure 2 This is a cross-sectional schematic diagram of the present invention.

[0018] Figure 1-2 In the middle: 1. Chisel handle; 2. Pickaxe head; 3. Cutting edge; 4. Step; 5. Material stop step; 6. Arc structure; 7. Thickened bevel. Detailed Implementation

[0019] 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.

[0020] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0021] This utility model provides a stepped electric impact chisel.

[0022] In this embodiment, refer to Figure 1-2 The stepped electric impact chisel includes an integrally formed chisel handle 1 and a pick 2. The end of the pick away from the chisel handle is provided with a bevel to form a cutting edge 3. The surface of the pick from the cutting edge 3 to the chisel handle is provided with a stepped mechanism that gradually thickens. The stepped mechanism includes at least two steps 4, the thickness difference between adjacent steps 4 is 1-3mm, and a ring of material-stopping steps 5 is provided on the outer side of the stepped structure.

[0023] In the aforementioned technical solution, a stepped mechanism with gradually increasing thickness from the cutting edge to the shank is designed on the surface of the pickaxe head, utilizing the height difference between the steps to form a path for guiding the crushed stone. Simultaneously, a retaining step on the outer side of the stepped structure is used to construct a dual crushing control structure that both guides and blocks the flow of crushed stone, preventing its accumulation at the base of the pickaxe head. Furthermore, the gradually thickening stepped design increases the strength of the pickaxe head according to the required force, adapting to the distribution of impact loads. This solves the problem of existing chisels getting stuck while crushing stone, ensures continuous contact between the cutting edge and the material, and improves work efficiency. The multi-step design creates a multi-segmented force surface, dispersing the impact force to achieve secondary crushing, reducing large particles, and achieving finer crushing. The gradually thickening structure optimizes the stress on the pickaxe head, reduces deformation and cracking, and extends tool life.

[0024] Specifically, the step has an arc structure 6 on the side near the cutting edge.

[0025] In this embodiment, the side of the step closest to the cutting edge is designed as an arc structure. This avoids the jamming and wear when the gravel collides with the edge of the step, and also allows the arc surface to form a smooth guiding curve, guiding the gravel to slide down the step more smoothly, while reducing the risk of stress concentration on the sharp structure during impact.

[0026] Specifically, the surface of the retaining step has a thickened inclined surface 7, and the slope of the thickened inclined surface 7 is adapted to the transition slope between the steps.

[0027] In this embodiment, the thickened slope of the retaining step is made to match the transition slope between the steps, so that the retaining step and the step structure form a smooth transition surface, avoiding protrusions or depressions at the joint. The matching slope makes the retaining step more evenly stressed and avoids local overload.

[0028] Specifically, the bevel angle of the cutting edge tip is 15°-20°.

[0029] In this embodiment, the slope of the cutting edge tip is set to 15°-20°: this angle range can ensure that the cutting edge has sufficient piercing force, while if the slope is too large, the piercing force will be weak, and if it is too small, the cutting edge will easily break, thus adapting to the crushing needs of materials with different hardness.

[0030] Specifically, the chisel handle is an SDS PLUS standard handle.

[0031] In this embodiment, the SDS PLUS standard handle is adopted. This standard is the industry-standard power tool handle, and its structural design is compatible with the chucks of mainstream power impact tools, enabling quick assembly and disassembly.

[0032] Attention all technical personnel: Although this utility model has been described according to the specific embodiments above, the concept of this utility model is not limited to this utility model. Any modification that utilizes the concept of this utility model will be included within the scope of protection of this patent right.

Claims

1. A stepped electric impact chisel, comprising an integrally formed chisel handle and a pick, wherein the end of the pick away from the chisel handle is provided with an inclined surface to form the cutting edge of the pick, characterized in that: The surface of the pickaxe head from the cutting edge to the shank direction is provided with a gradually thickening stepped mechanism. The stepped mechanism includes at least two steps, the thickness difference between adjacent steps is 1-3mm, and a ring of material-stopping steps is provided on the outer side of the stepped structure.

2. The stepped electric impact chisel according to claim 1, characterized in that: The step has an arc-shaped structure on the side near the cutting edge.

3. The stepped electric impact chisel according to claim 1, characterized in that: The surface of the retaining step has a thickened slope, and the slope of the thickened slope is adapted to the transition slope between the steps.

4. The stepped electric impact chisel according to claim 1, characterized in that: The bevel angle of the cutting edge tip is 15°-20°.

5. The stepped electric impact chisel according to claim 1, characterized in that: The chisel handle is an SDS PLUS standard handle.

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