Electric pick with dustproof and cooling functions

By installing a heat sink and exhaust fan on the electric hammer, combined with heat dissipation fins, the problem of poor piston cylinder cooling effect is solved. At the same time, the dustproof air intake structure and scraper system solve the problem of dust accumulation on the dustproof mesh, achieving efficient heat dissipation and dustproof effect of the electric hammer.

CN224129707UActive Publication Date: 2026-04-17JINHUA BLUE DIAMOND TOOLS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JINHUA BLUE DIAMOND TOOLS CO LTD
Filing Date
2025-05-21
Publication Date
2026-04-17

AI Technical Summary

Technical Problem

Existing electric hammers suffer from poor piston cylinder cooling during use, and the dust filter easily accumulates dust and is difficult to clean.

Method used

A heat sink and exhaust fan are installed on the main body of the electric hammer, combined with heat dissipation fins to enhance the heat dissipation effect of the piston cylinder; a dustproof air intake structure is installed on the side of the electric hammer, including an air intake frame, a dustproof net and a scraper system, to enable regular cleaning of the dustproof net.

Benefits of technology

It effectively improves the cooling effect of the piston cylinder and ensures the ventilation effect of the dust screen, preventing dust accumulation and maintaining the normal operation of the electric hammer.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224129707U_ABST
Patent Text Reader

Abstract

The utility model discloses an electric pick with dustproof and cooling functions, which belongs to the field of electric picks and comprises an electric pick main body, a piston cylinder is arranged on the electric pick main body, a piston rod is arranged in the piston cylinder, and a mounting head is arranged at the tail end of the piston rod. The heat dissipation cover is arranged, the exhaust fan is arranged on the inclined face of the heat dissipation cover and used in cooperation with heat dissipation fins, heat in the piston cylinder is extracted while heat in the electric pick body is exhausted, heat dissipation and cooling can be effectively conducted, a dustproof air inlet structure is adopted, a sliding block is arranged in a movable hole and used in cooperation with a rotating rod and a scraping plate, and the heat dissipation effect is good. The dust screen can be cleaned regularly, the air inlet effect of the dust screen is guaranteed, the rotating rod is rotated through the control rod during dust cleaning, the scraping plate makes contact with the dust screen to conduct cleaning work, after the control rod is loosened, the scraping plate rotates and resets through the rotating rod under the action of the V-shaped elastic piece, at the moment, the scraping plate does not make contact with the dust screen, and normal use of the dust screen is not affected.
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Description

Technical Field

[0001] This utility model relates to the field of electric picks, and in particular to an electric pick with dustproof and cooling functions. Background Technology

[0002] An electric hammer is a handheld power tool that uses electricity to generate high-frequency impact force. It is mainly used for operations involving hard materials such as concrete breaking, chiseling, and excavation. Electric hammers are characterized by safety, reliability, high efficiency, and ease of operation. When in use, after being connected to a power source, the motor drives the piston rod inside the piston cylinder to reciprocate through a linkage structure. The impact head connected to the end of the piston rod reciprocates along with the piston rod, thereby creating an impact force for breaking, excavation, and other operations.

[0003] Existing electric hammers have cooling fans and dust filters on both sides of the hammer body for heat dissipation and dust prevention. However, during use, while the cooling fans effectively cool the hammer body, the suction effect on the piston cylinder is limited, resulting in poor cooling. Furthermore, the dust filters in existing electric hammers accumulate significant dust over time, and the lack of a scraper for cleaning the dust filters hinders quick cleaning. Utility Model Content

[0004] The main objective of this invention is to provide an electric pick with dustproof and cooling functions, which can effectively solve the problems in the background art.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] An electric pick with dustproof and cooling functions includes an electric pick body, a piston cylinder on the electric pick body, a piston rod inside the piston cylinder, an installation head at the end of the piston rod, and an impact head fixed on the installation head, a heat dissipation shroud on the electric pick body, an exhaust fan mounted on the inclined surface of the heat dissipation shroud, heat dissipation fins fixed on the heat dissipation shroud, and a dustproof air intake structure on the side of the electric pick body.

[0007] Preferably, the dustproof air intake structure includes an air intake frame, a mounting frame, a dustproof net, a movable hole, and a slider. The air intake frame is fixed to the main body of the electric hammer and has an air intake port. The mounting frame is fixedly connected to the dustproof net and is snapped onto the air intake frame. The movable hole is opened on the air intake frame, and the slider is movably disposed in the movable hole on the air intake frame.

[0008] Preferably, the dustproof air intake structure further includes a rotating rod, a fixed plate, a movable plate, a V-shaped spring, a scraper, and a control rod. The rotating rod passes through the slider, the fixed plate is mounted on the slider, the movable plate is mounted on the rotating rod, the two ends of the V-shaped spring are fixed to the fixed plate and the movable plate respectively, the scraper is fixed on the rotating rod, and the scraper is fixedly connected to the control rod.

[0009] Preferably, the electric pick body is fixed with a handle, the handle is provided with a button, and the electric pick body is provided with a switch.

[0010] Preferably, a handle is provided on the piston cylinder near the electric pick body, and a power cord is provided on the electric pick body.

[0011] Compared with the prior art, this utility model has the following beneficial effects: This electric pick with dustproof and cooling functions, through the setting of a heat dissipation cover, has an exhaust fan set on the inclined surface of the heat dissipation cover, which works in conjunction with the heat dissipation fins to dissipate heat from the inside of the electric pick body and to remove heat from the inside of the piston cylinder, thus effectively dissipating heat and cooling. It adopts a dustproof air intake structure, which can effectively prevent dust while allowing air to enter. A slider is set in the movable hole, which works in conjunction with the rotating rod and scraper to clean the dustproof screen regularly, ensuring the air intake effect of the dustproof screen. It adopts a fixed plate, a movable plate, a V-shaped spring, and a control rod. When cleaning dust, the control rod is used to rotate the rotating rod so that the scraper contacts the dustproof screen for cleaning. After releasing the control rod, the scraper is rotated back to its original position by the rotating rod under the action of the V-shaped spring. At this time, the scraper does not contact the dustproof screen and does not affect the normal use of the dustproof screen. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0013] Figure 2 This is a schematic diagram of the structure of the main body of the electric pick of this utility model;

[0014] Figure 3 This utility model Figure 1 Enlarged view of point A in the middle;

[0015] Figure 4 This is a schematic diagram of the dustproof air intake structure of this utility model;

[0016] Figure 5 This utility model Figure 4 Enlarged view of point B in the middle.

[0017] In the diagram: 1. Electric hammer body; 2. Piston cylinder; 3. Mounting head; 4. Impact head; 5. Heat sink cover; 6. Exhaust fan; 7. Heat sink fins; 8. Dustproof air intake structure; 801. Air intake frame; 802. Mounting frame; 803. Dustproof net; 804. Movable hole; 805. Slider; 806. Rotating rod; 807. Fixed plate; 808. Movable plate; 809. V-shaped spring; 810. Scraper; 811. Control lever; 9. Handle; 10. Grip. Detailed Implementation

[0018] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0019] like Figures 1-5 As shown, an electric pick with dustproof and cooling functions includes a pick body 1, a piston cylinder 2 on the pick body 1, a piston rod inside the piston cylinder 2, a mounting head 3 at the end of the piston rod, and an impact head 4 fixed on the mounting head 3. A heat sink 5 is provided on the pick body 1, and an exhaust fan 6 is mounted on the inclined surface of the heat sink 5. Heat dissipation fins 7 are fixed on the heat sink 5. A dustproof air intake structure 8 is provided on the side of the pick body 1. A handle 9 is fixed on the pick body 1, and a button is provided on the handle 9. A power switch is provided on the pick body 1. A grip 10 is provided on the piston cylinder 2 near the pick body 1, and a power cord is provided on the pick body 1.

[0020] When using an electric hammer, connect the power cord on the main body 1 to the power source and turn on the circuit through the switch. The operator holds the handle 9 and grip 10 with both hands respectively, and starts the motor inside the main body 1 through the button on the handle 9. The motor runs and drives the piston rod inside the piston cylinder 2 through the linkage structure, which in turn drives the impact head 4 to reciprocate through the mounting head 3. The impact head 4 is then used to break up the relevant structures.

[0021] During the use of the electric hammer, the heat generated inside the electric hammer body 1 and piston cylinder 2 is drawn out by the exhaust fan 6 at the heat sink 5. At the same time, the heat sink fins 7 can provide auxiliary heat dissipation, improving the heat dissipation and cooling effect. Meanwhile, external air enters the electric hammer body 1 through the dustproof air intake structure 8, ensuring normal air circulation.

[0022] With the heat dissipation shroud 5, an exhaust fan 6 is installed on the inclined surface of the heat dissipation shroud 5. In conjunction with the heat dissipation fins 7, the fan dissipates the heat inside the electric hammer body 1 and also removes the heat inside the piston cylinder 2, thus effectively dissipating and cooling the heat.

[0023] According to the above implementation scheme, the dustproof air intake structure 8 includes an air intake frame 801, a mounting frame 802, a dustproof net 803, a movable hole 804, and a slider 805. The air intake frame 801 is fixed on the electric hammer body 1, and the air intake frame 801 is provided with an air intake port. The mounting frame 802 is fixedly connected to the dustproof net 803, and the mounting frame 802 is snapped onto the air intake frame 801. The movable hole 804 is opened on the air intake frame 801, and the slider 805 is movably disposed in the movable hole 804 on the air intake frame 801.

[0024] Preferably, the dustproof air intake structure 8 further includes a rotating rod 806, a fixed plate 807, a movable plate 808, a V-shaped spring 809, a scraper 810, and a control rod 811. The rotating rod 806 passes through the slider 805, the fixed plate 807 is mounted on the slider 805, the movable plate 808 is mounted on the rotating rod 806, the two ends of the V-shaped spring 809 are respectively fixed on the fixed plate 807 and the movable plate 808, the scraper 810 is fixed on the rotating rod 806, and the scraper 810 is fixedly connected to the control rod 811.

[0025] During the use of the electric hammer, outside air passes through the dustproof net 803 on the mounting frame 802 and enters the interior of the electric hammer body 1 through the air inlet. The dustproof net 803 serves to prevent dust. Under normal conditions, due to the action of the V-shaped spring 809, the scraper 810 does not contact the dustproof net 803. After prolonged use, a lot of dust accumulates on the dustproof net 803, affecting the air intake effect. The operator moves the scraper 810 through the control lever 811, and the slider 805 moves along the movable hole 804 on the air intake frame 801 until the slider 805 moves to the end of the movable hole 804. Then, the operator applies force to the scraper 810 through the control lever 811, causing the scraper 810 to rotate on the slider 805 through the rotating rod 806 until the lower end of the scraper 810 contacts the dustproof net 803. During this process, the movable plate 808 rotates together, and the V-shaped spring 809 between the fixed plate 807 and the movable plate 808 is compressed. Then, the scraper 810 is moved to clean the dust.

[0026] After the cleaning work is completed, release the control lever 811. Under the action of the V-shaped spring 809, the movable plate 808 rotates and resets with the rotating rod 806 and scraper 810. The lower end of the scraper 810 leaves the dustproof net 803, and then you can continue to use the electric pick.

[0027] It should be noted that the dustproof air intake structure 8 is adopted, which can effectively prevent dust while allowing air to enter. A slider 805 is set in the movable hole 804, which works with the rotating rod 806 and the scraper 810 to clean the dustproof net 803 regularly, ensuring the air intake effect of the dustproof net 803. The structure uses a fixed plate 807, a movable plate 808, a V-shaped spring 809 and a control rod 811. When cleaning, the rotating rod 806 is rotated by the control rod 811, so that the scraper 810 contacts the dustproof net 803 to clean it. After releasing the control rod 811, the scraper 810 is rotated and reset by the rotating rod 806 under the action of the V-shaped spring 809. At this time, the scraper 810 does not contact the dustproof net 803 and does not affect the normal use of the dustproof net 803.

[0028] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. An electric pick with dustproof and cooling functions, comprising an electric pick body (1), wherein a piston cylinder (2) is provided on the electric pick body (1), and a piston rod is provided inside the piston cylinder (2), wherein an mounting head (3) is provided at the end of the piston rod, and an impact head (4) is fixed on the mounting head (3), characterized in that: The electric pick body (1) is provided with a heat sink (5), and an exhaust fan (6) is installed on the inclined surface of the heat sink (5). Heat sink fins (7) are fixed on the heat sink (5), and a dustproof air intake structure (8) is provided on the side of the electric pick body (1).

2. The electric shovel with dustproof and cooling functions according to claim 1, characterized in that: The dustproof air intake structure (8) includes an air intake frame (801), a mounting frame (802), a dustproof net (803), a movable hole (804), and a slider (805). The air intake frame (801) is fixed on the electric hammer body (1), and the air intake frame (801) is provided with an air intake port. The mounting frame (802) is fixedly connected to the dustproof net (803), and the mounting frame (802) is snapped onto the air intake frame (801). The movable hole (804) is opened on the air intake frame (801), and the slider (805) is movably disposed in the movable hole (804) on the air intake frame (801).

3. The electric shovel with dustproof and cooling functions according to claim 2, characterized in that: The dustproof air intake structure (8) further includes a rotating rod (806), a fixed plate (807), a movable plate (808), a V-shaped spring (809), a scraper (810), and a control rod (811). The rotating rod (806) passes through the slider (805). The fixed plate (807) is installed on the slider (805). The movable plate (808) is installed on the rotating rod (806). The two ends of the V-shaped spring (809) are fixed on the fixed plate (807) and the movable plate (808) respectively. The scraper (810) is fixed on the rotating rod (806), and the scraper (810) is fixedly connected to the control rod (811).

4. The electric shovel with dustproof and cooling functions according to claim 3, characterized in that: A handle (9) is fixed on the electric pick body (1), a button is provided on the handle (9), and a switch is provided on the electric pick body (1).

5. The electric shovel with dustproof and cooling functions according to claim 4, characterized in that: A handle (10) is provided on the piston cylinder (2) near the electric pick body (1), and a power cord is provided on the electric pick body (1).