Electric pick with shockproof mechanism

Abstract

The electric pick comprises an electric pick body, buffer grooves are formed in the two sides of the electric pick body, floating type damping mechanisms are installed in the buffer grooves in a sliding mode, grab handles are fixedly installed at one ends of the floating type damping mechanisms and penetrate out of the buffer grooves, and rubber ring pads are fixedly installed on the upper surfaces and the lower surfaces in the buffer grooves. And the rubber ring pad is propped against the grab handle. According to the electric pick, through the design of the floating type damping mechanism, double buffering can be applied to the electric pick body, the double buffering mechanism of the electric pick can more thoroughly reduce residual vibration, the electric pick can provide effective buffering under different vibration frequencies and strengths, and through the design, vibration absorption is more comprehensive, and adaptability is higher.

Description

Technical Field

[0001] The utility model relates to the technical field of construction machinery, in particular to a pneumatic pick with a shock-proof mechanism. Background Technique

[0002] A pneumatic pick (electric breaker), is a double-insulated hand-held power tool powered by a single-phase series-wound motor. It has the characteristics of safety and reliability, high efficiency, and convenient operation. It is widely used in pipeline laying, mechanical installation, construction of water supply and drainage facilities, interior decoration, construction of port facilities and other construction projects. It is suitable for using pick chisels or other appropriate accessories, such as chisels, shovels, etc. to perform operations such as breaking, leveling, digging, grooving, and cutting on concrete, masonry structures, and asphalt pavements.

[0003] For example, the patent with the national authorized patent publication number CN212735916U discloses a shock-absorbing device for a pneumatic pick, including a pneumatic pick body. A main handle is provided at the rear end of the pneumatic pick body. A shock-absorbing chamber is provided between the pneumatic pick body and the main handle. A buffer support rod, a sleeve body, and a connecting rod are provided in the shock-absorbing chamber. A buffer pad and a buffer pad mounting plate are sleeved on the buffer support rod; one end of the connecting rod is fixedly connected to one side of the shock-absorbing chamber, and a piston is provided at the other end. The sleeve body is fixedly connected to the shock-absorbing chamber. An opening is provided at one end of the sleeve body. A buffer spring is provided in the sleeve body. One end of the buffer spring is fixedly connected to the sleeve body, and the other end is fixedly connected to the piston of the connecting rod. The structure of the utility model is simple, reasonable in design, and easy to operate. Through the compression force and rebound force of the buffer support rod, connecting rod, buffer spring, etc. in the shock-absorbing chamber, the vibration generated during the use of the pneumatic pick is greatly reduced, thereby playing a protective role for the operator, improving work efficiency, and enhancing practicability.

[0004] However, in the above shock-absorbing device for a pneumatic pick, during the process of eliminating the vibration force, only the compression force and rebound force of the buffer spring are used for shock-absorbing operation. However, such shock-absorbing effect has limited ability to handle high-frequency vibrations because the response speed of the spring is insufficient under high-frequency vibrations, and it cannot effectively eliminate all vibrations. Moreover, there will be a certain degree of unevenness during the vibration elimination process, especially when the vibration intensity changes greatly, the shock-absorbing effect cannot be consistent. Content of the Utility Model

[0005] The purpose of the utility model is to provide a pneumatic pick with a shock-proof mechanism to solve the problem that in the process of eliminating the vibration force, only the compression force and rebound force of the buffer spring are used for shock-absorbing operation, and such shock-absorbing effect has limited ability to handle high-frequency vibrations because the response speed of the spring is insufficient under high-frequency vibrations and it cannot effectively eliminate all vibrations as mentioned in the above background technique.

[0006] To achieve the above purpose, the utility model provides the following technical solutions:

[0007] An electric pickaxe with a shockproof mechanism, comprising: an electric pickaxe body, buffer grooves are provided on both sides of the electric pickaxe body, a floating shock absorption mechanism is slidably installed in the buffer grooves, one end of the floating shock absorption mechanism is fixedly installed with a handle, and the handle penetrates out of the buffer groove.

[0008] Preferably, rubber gasket pads are fixedly installed on the upper and lower surfaces in the buffer grooves, and the rubber gasket pads are in contact with the handle.

[0009] Preferably, the floating shock absorption mechanism includes a connecting column, top support plates are fixedly installed on the upper and lower surfaces of the connecting column, spherical air cushions are fixedly installed on the surfaces of the top support plates, the connecting column is slidably installed in the buffer groove through the top support plates and the spherical air cushions, a connecting disk is damping-slidably installed on the outer surface of the connecting column, a sleeve is fixedly installed on the outer surface of the connecting disk, the sleeve is slidably installed in the buffer groove, and a handle is fixedly installed on the outer surface of the sleeve.

[0010] Preferably, through the damping sliding of the connecting disk on the outer surface of the connecting column, the connecting disk can drive the connecting column to preferentially press in the buffer groove through the spherical air cushion by the damping force;

[0011] Among them, the up-and-down impact force of the electric pickaxe body will cause the handle to slidably move on the outer surface of the connecting column in a floating manner and abut against the rectangular spring.

[0012] Preferably, limiting blocks are fixedly installed on both sides of the outer surface of the sleeve, the limiting blocks are slidably installed in limiting grooves, and the limiting grooves are provided on both sides in the buffer groove.

[0013] Preferably, rectangular springs are sleeved on the upper and lower ends of the outer surface of the connecting column, so that the rectangular springs are located at the upper and lower surfaces of the connecting disk, and the upper and lower surfaces of the rectangular springs abut between the top support plate and the connecting disk.

[0014] Compared with the prior art, the beneficial effects of the present utility model are:

[0015] 1. Through the design of the electric pickax body, rubber gasket, buffer groove and floating shock-absorbing mechanism, during use, the operator can hold the outer surface of the handle to make the electric pickax body break the stones through high-frequency impact. The up-and-down vibration force generated by the high-frequency impact of the electric pickax body will slide up and down on the outer surface of the floating shock-absorbing mechanism through the buffer groove. At this time, the position of the handle held by the operator remains unchanged. Then, the electric pickax body will drive the buffer grooves opened on both sides to slide on the outer surface of the floating shock-absorbing mechanism and buffer the vibration at the same time. The handle connected to the floating shock-absorbing mechanism can be held in place by the operator without being affected by the vibration force. If the vibration stroke is too large, it will drive the rubber gasket in the buffer groove to touch the outer surface of the handle to further buffer the large vibration force. Thus, the vibration received by the operator's hand and arm can be greatly reduced, effectively reducing the fatigue and discomfort caused by the operator's long-term use of the tool. And the floating shock absorption can accelerate the buffer response frequency along with the vibration frequency, thus providing a more real-time shock-absorbing effect.

[0016] 2. Through the design of the sleeve, connection plate, spherical air cushion, connection column, rectangular spring and top support plate, during the process of the electric pickax body breaking the stones through high-frequency impact and generating vibration force, the electric pickax body will drive the buffer groove to slide up and down on the outer surface of the suspended sleeve through the up-and-down vibration force. The suspension of the sleeve is due to the handle being held by the operator. During the process of the buffer groove sliding up and down on the outer surface of the sleeve, the sleeve will drive the internal connection plate to slide up and down on the outer surface of the connection column in the buffer groove. And during the process of the connection plate sliding up and down on the outer surface of the connection column, it will touch one end of the rectangular spring together to realize the function of buffering the vibration force in the first step and achieve the initial vibration absorption. This can effectively reduce most of the initial vibrations. After being pressed by the connection plate, the rectangular spring will push the top support plate to drive the spherical air cushion on the surface to press up and down in the buffer groove to achieve further vibration absorption. This double buffer mechanism can more thoroughly reduce the remaining vibrations, enabling it to provide effective buffering at different vibration frequencies and intensities. This design makes the vibration absorption more comprehensive and more adaptable. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is the overall structural schematic diagram of the electric pickax with a shock-proof mechanism of the present invention;

[0018] Figure 2 is the structural schematic diagram of the handle and rubber gasket of the present invention;

[0019] Figure 3 is the structural schematic diagram of the buffer groove and limit groove of the present invention;

[0020] Figure 4 is the structural schematic diagram of the floating shock-absorbing mechanism of the present invention.

[0021] In the figure: 1. Electric pickaxe body; 101. Rubber gasket; 102. Buffer groove; 103. Limit groove; 2. Handle; 3. Floating shock absorption mechanism; 301. Sleeve; 302. Connection plate; 303. Limit block; 304. Spherical air cushion; 305. Connection column; 306. Rectangular spring; 307. Top support plate. Specific implementation manner

[0022] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0023] Please refer to Figures 1-4 , the following technical solutions are provided in this embodiment:

[0024] As Figures 1-2 shown, an electric pickaxe with a shockproof mechanism includes: an electric pickaxe body 1. Buffer grooves 102 are provided on both sides of the electric pickaxe body 1. A floating shock absorption mechanism 3 is slidably installed in the buffer groove 102. One end of the floating shock absorption mechanism 3 is fixedly installed with a handle 2, and the handle 2 penetrates out of the buffer groove 102.

[0025] Rubber gaskets 101 are fixedly installed on the upper and lower surfaces in the buffer groove 102, and the rubber gaskets 101 are in contact with the handle 2.

[0026] Through the design of the electric pickaxe body 1, rubber gaskets 101, buffer grooves 102 and floating shock absorption mechanism 3, during use, when the staff holds the outer surface of the handle 2 to make the electric pickaxe body 1 break the stones through high-frequency impact, the up and down vibration force brought by the high-frequency impact generated by the electric pickaxe body 1 will slide up and down on the outer surface of the floating shock absorption mechanism 3 through the buffer groove 102. At this time, the position of the handle 2 held by the staff remains unchanged. Then, the electric pickaxe body 1 will drive the buffer grooves 102 provided on both sides to slide on the outer surface of the floating shock absorption mechanism 3 and buffer the vibration at the same time. The handle 2 connected to the floating shock absorption mechanism 3 can be held in place by the staff without being affected by the vibration force. If the vibration stroke is too large, it will drive the rubber gasket 101 in the buffer groove 102 to touch the outer surface of the handle 2 to further buffer the large vibration force. Thus, the vibration received by the operator's hand and arm can be greatly reduced, effectively reducing the fatigue and discomfort caused by the operator using the tool for a long time. And the floating shock absorption can accelerate the buffer response frequency along with the vibration frequency, and then can provide a more real-time shock absorption effect.

[0027] AsFigures 3-4 As shown in the figure, the floating shock absorption mechanism 3 includes a connecting column 305. Top support plates 307 are fixedly installed on both the upper and lower surfaces of the connecting column 305. A spherical air cushion 304 is fixedly installed on the surface of the top support plate 307. The connecting column 305 is slidably installed in the buffer groove 102 through the top support plate 307 and the spherical air cushion 304. A connecting disk 302 is slidably installed on the outer surface of the connecting column 305 in a damping manner. A sleeve 301 is fixedly installed on the outer surface of the connecting disk 302. The sleeve 301 is slidably installed in the buffer groove 102. A handle 2 is fixedly installed on the outer surface of the sleeve 301.

[0028] Through the damping sliding of the connecting disk 302 on the outer surface of the connecting column 305, the connecting disk 302 can drive the connecting column 305 to press against in the buffer groove 102 through the damping force preferentially via the spherical air cushion 304.

[0029] Among them, the up-and-down impact force of the electric hammer body 1 will cause the handle 2 to slide on the outer surface of the connecting column 305 in a floating manner and touch the rectangular spring 306.

[0030] Limit blocks 303 are fixedly installed on both sides of the outer surface of the sleeve 301. The limit blocks 303 are slidably installed in the limit grooves 103. The limit grooves 103 are opened on both sides inside the buffer groove 102.

[0031] Rectangular springs 306 are sleeved on both the upper and lower ends of the outer surface of the connecting column 305, so that the rectangular springs 306 are located at the upper and lower surfaces of the connecting disk 302, and the upper and lower surfaces of the rectangular springs 306 touch between the top support plate 307 and the connecting disk 302.

[0032] Through the design of the sleeve 301, the connecting disk 302, the spherical air cushion 304, the connecting column 305, the rectangular spring 306 and the top support plate 307, during the process of the electric hammer body 1 generating vibration force by high-frequency impact to break stones, the electric hammer body 1 will drive the buffer groove 102 to slide up and down on the outer surface of the suspended sleeve 301 through the up-and-down vibration force. The suspension of the sleeve 301 is due to the handle 2 being held by the staff. During the process of the buffer groove 102 sliding up and down on the outer surface of the sleeve 301, the sleeve 301 will drive the internal connecting disk 302 to slide up and down on the outer surface of the connecting column 305 in the buffer groove 102. And during the process of the connecting disk 302 sliding up and down on the outer surface of the connecting column 305, it will touch one end of the rectangular spring 306 together to realize the function of the first-step buffer shock force and achieve the initial shock absorption, which can effectively reduce most of the initial vibrations. After being pressed by the connecting disk 302, the rectangular spring 306 will push the top support plate 307 to drive the spherical air cushion 304 on the surface to press up and down in the buffer groove 102 to achieve further shock absorption. This dual buffer mechanism can more thoroughly reduce the remaining vibrations, enabling it to provide effective buffering at different vibration frequencies and intensities. This design makes the shock absorption more comprehensive and has stronger adaptability.

[0033] Summarize and sort out the working steps of this solution according to the above technical solution: When in use, the operator can hold the outer surface of the handle 2 to make the electric pickax body 1 break the stone by high-frequency impact. During this process, the up-and-down vibration force brought by the high-frequency impact generated by the electric pickax body 1 will slide up and down on the outer surface of the suspended sleeve 301 through the buffer groove 102. The suspension of the sleeve 301 is due to the handle 2 being held by the operator. During the process of the buffer groove 102 sliding up and down on the outer surface of the sleeve 301, the sleeve 301 will drive the internal connection disk 302 to slide up and down on the outer surface of the connecting column 305 in the buffer groove 102. And when the connection disk 302 slides up and down on the outer surface of the connecting column 305, it will jointly touch one end of the rectangular spring 306 to realize the function of buffering the vibration force in the first step, achieving preliminary vibration absorption. This can effectively reduce most of the initial vibrations. After being pressed by the connection disk 302, the rectangular spring 306 will push the top support plate 307 to drive the spherical air cushion 304 on its surface to press up and down in the buffer groove 102 to achieve further vibration absorption;

[0034] Among them, the buffer groove 102 slides up and down on the outer surface of the sleeve 301, realizing the floating characteristic. The buffer groove 102 is not fixed, but can move freely relative to the sleeve 301. And the sleeve 301 is fixed by the handle 2 held by the operator and is in a suspended state. The internal connection disk 302 slides up and down on the outer surface of the connecting column 305, which further realizes the floating of the internal components. Then, through the coordinated work of components such as the connection disk 302, the rectangular spring 306, and the spherical air cushion 304, different parts have independent movement and buffering behaviors during the vibration process, making it form the characteristics of a floating structure. Using the relative movement between the floating parts and the fixed parts to absorb and buffer the vibration helps to reduce the impact of the vibration on the operator and improves the overall comfort and safety of use.

[0035] In summary: This double buffering mechanism can more thoroughly reduce the remaining vibrations, enabling it to provide effective buffering at different vibration frequencies and intensities. This design makes the vibration absorption more comprehensive and has stronger adaptability.

[0036] Parts not involved in the present utility model are the same as the prior art or can be implemented using the prior art. Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. An electric pick with a shockproof mechanism, characterized in that: include: An electric pick body (1), wherein buffer grooves (102) are provided on both sides of the electric pick body (1), a floating shock absorbing mechanism (3) is slidably installed in the buffer groove (102), a handle (2) is fixedly installed at one end of the floating shock absorbing mechanism (3), and the handle (2) extends through the buffer groove (102).

2. The electric pick with a shockproof mechanism according to claim 1, characterized in that: The upper and lower surfaces of the buffer groove (102) are both fixedly mounted with rubber ring pads (101), and the rubber ring pads (101) are in contact with the handle (2).

3. The electric pick with a shockproof mechanism according to claim 1, characterized in that: The floating shock absorbing mechanism (3) comprises a connecting column (305), the upper and lower surfaces of the connecting column (305) are fixedly mounted with a top support plate (307), the surface of the top support plate (307) is fixedly mounted with a spherical air cushion (304), the connecting column (305) is slidably mounted in the buffer groove (102) through the top support plate (307) and the spherical air cushion (304), the outer surface of the connecting column (305) is slidably mounted with a connecting disk (302), the outer surface of the connecting disk (302) is fixedly mounted with a sleeve (301), the sleeve (301) is slidably mounted in the buffer groove (102), and the outer surface of the sleeve (301) is fixedly mounted with a handle (2).

4. The electric pick with a shockproof mechanism according to claim 3, characterized in that: By the damping sliding of the connecting disk (302) on the outer surface of the connecting column (305), the connecting disk (302) can drive the connecting column (305) to press in the buffer groove (102) preferentially through the spherical air cushion (304) through the damping force; The up and down impact force of the electric pick body (1) will cause the handle (2) to slide on the outer surface of the connecting column (305) in a floating manner and touch the rectangular spring (306).

5. The electric pick with a shockproof mechanism according to claim 4, characterized in that: Limiting blocks (303) are fixedly installed on both sides of the outer surface of the sleeve (301), and the limiting blocks (303) are slidably installed in the limiting grooves (103). The limiting grooves (103) are opened on both sides of the buffer groove (102).

6. The electric pick with a shockproof mechanism according to claim 5, characterized in that: The upper and lower ends of the outer surface of the connecting column (305) are both provided with rectangular springs (306), so that the rectangular springs (306) are located at the upper and lower surfaces of the connecting disk (302), so that the upper and lower surfaces of the rectangular springs (306) touch between the top support plate (307) and the connecting disk (302).

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