quick-change hammer drill

Abstract

The utility model discloses a quick assembly and disassembly hammer drill, quick assembly and disassembly hammer drill includes the shell, is provided with the mounting piece on the shell, is provided with the detachable hammer drill on the mounting piece, the mounting piece includes the impact head and control piece, control piece slidingly connects on the impact head and the shell, be provided with a plurality of steel ball on the impact head, be provided with the recess on the hammer drill, the hammer drill is placed into the impact head with steel ball match after in the middle to complete the installation. Through the sliding second sliding block drive first sliding block rear shift, the inclined plane compreses the steel ball and contracts and releases the hammer drill, the whole course does not need the tool, and the assembly and disassembly time is short, further cooperation slide strip on the limiting block and the slide strip on the control piece carry out the rotary limit position design, namely realize quick switching assembly and disassembly, locking state.

Description

Technical Field

[0001] This utility model relates to the field of electric pick technology, and in particular to an electric pick with a quick-loading and unloading hammer and chisel. Background Technology

[0002] Electric picks, as common impact construction tools, require frequent hammer and chisel replacements to adapt to different working conditions. Traditional electric pick hammers and chisels mostly use threaded connections or single snap rings for fixation. Threaded connections require multiple rotations, which is time-consuming and labor-intensive. Existing technologies attempt to lock the hammer and chisel using spring pins, but these still suffer from structural complexity and insufficient locking force. Therefore, there is an urgent need for an electric pick hammer and chisel connection structure that combines quick assembly and disassembly, high reliability, and tool-free operation. Utility Model Content

[0003] This invention addresses the shortcomings of existing technologies by providing an electric pick that allows for quick loading and unloading of hammers and chisels.

[0004] To solve the above-mentioned technical problems, the present invention provides the following technical solution: an electric pick for quick loading and unloading of hammers and chisels includes a housing, on which a mounting component is provided, and on which a detachable hammer and chisel are provided. The mounting component includes an impact head and a control component, and the control component is slidably connected to the impact head and the housing. The impact head is provided with several steel balls, and the hammer is provided with a groove. The hammer is inserted into the impact head and matched with the steel balls to complete the installation.

[0005] In the above scheme, preferably, the control element includes a first slider for controlling the steel ball, the first slider moving on the impact head and onto the steel ball so that the steel ball is embedded in the hammer.

[0006] In the above scheme, preferably, the control component includes a second slider, which slides on the outer casing, and the second slider is connected to the first slider through a connecting block.

[0007] In the above scheme, preferably, the output end of the outer shell is provided with a mounting component, and the output end is provided with a limiting block corresponding to the second slider, the limiting block being used to abut against the second slider.

[0008] In the above scheme, preferably, the second slider is provided with a plurality of sliding grooves, and the limiting block is provided with a sliding strip. When the sliding grooves and the sliding strip are correspondingly set, the second slider can move toward the limiting block.

[0009] In the above scheme, preferably, a disk is provided on the outside of the impact head, and the disk is adapted to be located in the output end.

[0010] In the above scheme, it is preferable to provide a buffer spring between the disk and the first slider.

[0011] In the above scheme, preferably, the first slider includes a control groove, which is a slope for cooperating with the steel ball.

[0012] In the above scheme, preferably, the outer casing is also provided with a drive device for the operation of the impact head.

[0013] The beneficial effects of this utility model are: by sliding the second slider to drive the first slider to move backward, the inclined surface presses the steel ball inward to release the hammer and chisel, no tools are required throughout the process, and the loading and unloading time is short; furthermore, by cooperating with the slider on the limit block and the slider on the control component to carry out a rotation limit design, it is possible to quickly switch between loading / unloading and locking states. Attached Figure Description

[0014] Figure 1 This is a perspective view of the present utility model.

[0015] Figure 2 This is a schematic diagram of the internal structure of this utility model.

[0016] Figure 3 for Figure 2 Enlarged view of point A.

[0017] Figure 4 This is a schematic diagram of the steel ball installation of this utility model.

[0018] Figure 5 This is a diagram showing the fit between the limiting block and the control component of this utility model. Detailed Implementation

[0019] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments: See below Figures 1-5 The electric pick for quick loading and unloading of hammer and chisel 3 includes a main body, the outer side of which is a shell 1. The shell 1 contains a drive device, which is used to drive the hammer and chisel 3 to perform impact operations.

[0020] Furthermore, the output end 9 of the housing 1 is provided with a mounting component, which includes an impact head 4 and a control component 6. The impact head 4 is completely installed in the output end 9 and connected to the driving device. The impact head 4 can transmit driving force to the hammer 3. Furthermore, the control component 6 is slidably connected to the impact head 4 and the outside of the output end 9 of the housing 1 to realize the rapid locking and releasing of the hammer 3.

[0021] The hammer 3 is detachably mounted to the front end of the impact head 4. Multiple radially movable steel balls 5 are evenly embedded on the outer peripheral wall of the impact head 4. Correspondingly, an annular groove is machined at the tail end of the hammer 3. During installation, the hammer 3 is inserted into the inner cavity of the impact head 4. When the groove of the hammer 3 moves to the position of the steel ball 5, the steel ball 5 can be partially embedded in the groove to form a radial limit.

[0022] The control component 6 includes two cooperating sliders, a first slider 7 and a second slider 8. The first slider 7 is sleeved on the impact head 4, and its inner wall has an inclined control groove 15. The second slider 8 is slidably mounted on the surface of the outer shell 1 and is connected to the first slider 7 through a connecting block. The contact surface between the control groove 15 of the first slider 7 and the steel ball 5 is designed as a slope 16 structure. When the control groove 15 is aligned with the steel ball 5, the hammer chisel 3 can be pulled out. At the same time, the first slider 7 moves and drives the control groove 15. The slope 16 presses the steel ball 5 inward to match the groove of the hammer chisel 3.

[0023] A limiting block 10 is provided on the outer side of the output end 9 of the housing 1, and a groove 11 is opened at the corresponding position of the second slider 8. A slide bar 12 is provided on the limiting block 10. When the groove 11 and the slide bar 12 are aligned, the second slider 8 can slide backward to the loading and unloading position; when the limiting block 10 is rotated to make the groove 11 and the slide bar 12 misaligned, the limiting block 10 will prevent the second slider 8 from moving backward, ensuring the locking reliability in the working state.

[0024] Furthermore, a disc 13 structure is fixed to the outside of the impact head 4. The disc 13 is adapted to the inner cavity of the output end 9 of the outer shell 1 to ensure the stability of the axial movement of the impact head 4. A buffer spring 14 is provided between the disc 13 and the first slider 7, which can absorb working vibration and provide the first slider 7 with a forward reset elastic force to maintain the locking force of the steel ball 5 on the hammer 3.

[0025] During operation, the user rotates the second slider 8 so that its groove 11 aligns with the limit block 10 and slide bar 12, and pulls the second slider 8 backward. This causes the first slider 7 to move backward through the connecting block, compressing the buffer spring 14. The inclined surface 16 of the first slider 7 forces the steel ball 5 to retract inward. At this time, the hammer stub 3 is inserted to the position of the steel ball 5. The second slider 8 is then released, and the buffer spring 14 pushes the first slider 7 forward. After the steel ball 5 loses its pressure, it embeds into the groove of the hammer stub 3, achieving self-locking. The disassembly process is the reverse. This design significantly improves the efficiency of hammer stub 3 replacement and has a stable structure, making it suitable for high-intensity operations.

[0026] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. An electric pick with quick loading and unloading of the hammer (3), characterized in that: Includes a housing (1), on which a mounting component is provided, and on which a detachable hammer (3) is provided, the mounting component includes an impact head (4) and a control component (6), the control component (6) being slidably connected to the impact head (4) and the housing (1); The impact head (4) is provided with several steel balls (5), and the hammer (3) is provided with a groove. The hammer (3) is inserted into the impact head (4) and matched with the steel balls (5) to complete the installation.

2. The electric pick with quick-loading and unloading hammer (3) according to claim 1, characterized in that: The control element (6) includes a first slider (7) for controlling the steel ball (5), the first slider (7) moving on the impact head (4) and onto the steel ball (5) so that the steel ball (5) is embedded in the hammer (3).

3. The electric pick with quick-loading and unloading hammer (3) according to claim 2, characterized in that: The control component (6) includes a second slider (8) which slides on the housing (1) and is connected to the first slider (7) via a connecting block.

4. The electric pick with quick-loading and unloading hammer (3) according to claim 3, characterized in that: The output end (9) of the outer shell (1) is provided with a mounting component, and the output end (9) is provided with a limiting block (10) corresponding to the second slider (8). The limiting block (10) is used to abut against the second slider (8).

5. The electric pick with quick-loading and unloading hammer (3) according to claim 4, characterized in that: The second slider (8) is provided with a plurality of sliding grooves (11), and the limiting block (10) is provided with a sliding strip (12). When the sliding grooves (11) and the sliding strips (12) are correspondingly set, the second slider (8) can move toward the limiting block (10).

6. The electric pick with quick-loading and unloading hammer (3) according to claim 4, characterized in that: A disc (13) is provided on the outside of the impact head (4), and the disc (13) is adapted to be disposed in the output end (9).

7. The electric pick with quick-loading and unloading hammer (3) according to claim 6, characterized in that: A buffer spring (14) is provided between the disk (13) and the first slider (7).

8. The electric pick with quick-loading and unloading hammer (3) according to claim 7, characterized in that: The first slider (7) includes a control groove (15) for an inclined surface (16) that engages with the steel ball (5).

9. The electric pick with quick-loading and unloading hammer (3) according to claim 1, characterized in that: The outer casing (1) is also provided with a drive device for the operation of the impact head (4).

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