A shock absorbing handle structure for an electric shovel

Abstract

This utility model relates to the technical field of shock-absorbing handles for electric picks, and discloses a shock-absorbing handle structure for an electric pick. The structure includes an electric pick, a guide post fixedly connected to the right side of its outer surface, a guide sleeve slidably connected to the outer surface of the guide post, a handle fixedly connected to the right side of the outer surface of the guide sleeve, and an oil-draining head fixedly connected to the right side of the outer surface of the guide post. The oil-draining head has an oil-draining groove and an oil-passing hole on its outer surface. A storage assembly is provided on the inner surface of the handle; the storage assembly includes a storage compartment, the bottom of which is hinged to the right side of the inner surface of the handle. In this utility model, the conical oil-draining head, combined with the annularly arranged oil-draining groove and oil-passing hole, ensures that the lubrication inside the guide sleeve is evenly distributed on the surface of the guide post, preventing increased wear between workpieces due to insufficient local lubrication.

Description

Technical Field

[0001] This utility model relates to the field of shock-absorbing handles for electric picks, and in particular to a shock-absorbing handle structure for an electric pick. Background Technology

[0002] The working principle of an electric hammer is to drive the impact mechanism to reciprocate at high frequency through an internal motor, breaking hard materials such as concrete and stone. This process generates strong vibrations, which are directly transmitted to the operator's hands, arms and even the whole body through the handle, causing multiple problems. Shock-absorbing handles are usually used to solve these problems.

[0003] Elastic damping is the most basic and widely used damping method in electric pick handles. Elastic damping usually involves installing a compression spring or elastic column between the handle and the main unit. When vibrating, the spring is compressed / stretched, converting the vibration energy into elastic potential energy through elastic deformation, and then slowly releasing it to avoid direct energy transmission, thereby reducing the rigid transmission of vibration to the hand and achieving the effect of damping.

[0004] In elastic shock absorption, elastic materials are prone to irregular lateral displacement or torsion when deformed under stress. To solve this problem, guide posts and guide sleeves are usually added between the handle and the main unit to ensure that the handle can support the main unit while ensuring the shock absorption function. However, considering that the guide posts and guide sleeves are mostly made of metal or high-strength plastic, their dry friction coefficient is relatively high. Under the high-frequency vibration and impact load of the electric hammer, severe friction will be generated. Usually, lubricating oil is injected into the guide sleeve to reduce the wear rate and extend the service life of the guide components. However, the cooperation between the guide post and the guide sleeve is a high-frequency reciprocating sliding friction. After the lubricating oil is injected, it can only spread naturally by gravity and vibration inertia, which is difficult to resist the centrifugal force and splash effect under high-frequency vibration. The lubricating oil tends to accumulate at the end of the guide sleeve, while the middle of the guide post and the area far from the oil injection port are in a state of insufficient lubrication for a long time. Therefore, a shock-absorbing handle structure for electric hammers is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a shock-absorbing handle structure for an electric hammer. It aims to solve the problem in existing technologies where, in elastic damping, guide posts and guide sleeves are added between the handle and the main unit to ensure support force and address the issue of irregular offset or torsion during handle deformation under stress. However, both are mostly made of metal or high-strength plastic with a high coefficient of dry friction, resulting in severe friction under the high-frequency vibration and impact loads of the electric hammer. Therefore, lubricating oil needs to be injected into the guide sleeve to reduce friction. However, because the friction is high-frequency reciprocating sliding friction, the lubricating oil diffuses naturally only through gravity and vibration inertia, which is insufficient to counteract the centrifugal force and splashing effect under high-frequency vibration. This leads to lubricating oil accumulation at the end of the guide sleeve, while the middle of the guide post and the area far from the oil injection port suffer from chronic insufficient lubrication.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a shock-absorbing handle structure for an electric pick, comprising an electric pick, a guide post fixedly connected to the right side of the outer surface of the electric pick, a guide sleeve slidably connected to the outer surface of the guide post, a handle fixedly connected to the right side of the outer surface of the guide sleeve, an oil-draining head fixedly connected to the right side of the outer surface of the guide post, an oil-draining groove formed on the outer surface of the oil-draining head, an oil-passing hole formed on the outer surface of the oil-draining head, and a storage component provided on the inner surface of the handle; The storage component includes a storage compartment. The bottom of the outer surface of the storage compartment is hinged to the right side of the inner surface of the handle. A buckle is fixedly connected to the top of the outer surface of the storage compartment, and the outer surface of the buckle is engaged with the right side of the inner surface of the handle.

[0007] As a further description of the above technical solution: The storage assembly also includes a limiting post, the outer surface of which is fixedly connected to the top of the outer surface of the storage compartment. A limiting groove is formed on the top of the inner surface of the handle. The outer surface of the limiting post is slidably connected to the inner surface of the limiting groove. A Phillips screwdriver is inserted into the inner surface of the storage compartment.

[0008] As a further description of the above technical solution: The right side of the outer surface of the electric pick is elastically connected to the left side of the outer surface of the handle via a spring. A dustproof hose is fixedly connected to the right side of the outer surface of the electric pick, and the right side of the outer edge of the dustproof hose is fixedly connected to the left side of the outer surface of the handle.

[0009] As a further description of the above technical solution: A buffer pad is fixedly connected to the left side of the outer surface of the guide post, and the right side of the outer surface of the buffer pad is in contact with the left side of the outer surface of the guide sleeve.

[0010] As a further description of the above technical solution: One end of the spring is fixedly connected to the right side of the outer surface of the electric pick, and the other end of the spring is fixedly connected to the left side of the outer surface of the handle.

[0011] As a further description of the above technical solution: The grease-draining head is conical in shape, and the grease-draining grooves are provided in multiple sets and are evenly arranged in a ring on the outer surface of the grease-draining head.

[0012] As a further description of the above technical solution: An oil inlet channel is provided on the top of the inner surface of the handle, and an oil plug is threadedly connected to the top of the inner surface of the handle.

[0013] As a further description of the above technical solution: A switch is provided on the top of the outer surface of the handle, and a pickaxe head is fixedly connected to the left side of the outer surface of the electric pickaxe.

[0014] This utility model has the following beneficial effects: In this invention, the conical grease-draining head, combined with the annularly arranged grease-draining grooves and oil passages, ensures that the lubrication inside the guide sleeve is evenly distributed on the surface of the guide post, thus preventing increased wear between workpieces due to insufficient local lubrication.

[0015] 2. In this utility model, a dedicated Phillips screwdriver can be stored in the integrated storage compartment, and the buckle and limiting structure achieve stable storage and convenient access, eliminating the need to carry additional tools, simplifying the oiling and maintenance process, and improving the efficiency of daily maintenance. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the main structure of a shock-absorbing handle structure for an electric pick proposed in this utility model; Figure 2 This is a cross-sectional schematic diagram of the dustproof hose structure of the shock-absorbing handle of an electric pick proposed in this utility model. Figure 3 This is a cross-sectional view of the guide sleeve structure of the shock-absorbing handle structure of an electric pick proposed in this utility model. Figure 4 A schematic diagram of the guide column structure of the shock-absorbing handle structure of an electric pick proposed in this utility model; Figure 5 This is a cross-sectional view of the handle structure of a shock-absorbing handle for an electric pick proposed in this utility model.

[0017] Legend: 1. Electric pickaxe; 2. Pickaxe head; 3. Handle; 4. Dustproof hose; 5. Switch; 6. Guide post; 7. Guide sleeve; 8. Spring; 9. Oil plug; 10. Oil drain head; 11. Buffer pad; 12. Oil inlet; 13. Oil drain groove; 14. Oil passage hole; 15. Storage assembly; 151. Storage compartment; 152. Buckle; 153. Limiting post; 154. Limiting groove; 155. Phillips screwdriver. Detailed Implementation

[0018] 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.

[0019] Reference Figures 1-3This utility model provides an embodiment of a shock-absorbing handle structure for an electric pick, including an electric pick 1. A guide post 6 is fixedly connected to the right side of the outer surface of the electric pick 1, providing a guiding foundation for the sliding of the handle 3 relative to the electric pick 1, ensuring stable movement trajectory, and achieving precise guidance through the guide post 6. A guide sleeve 7 is slidably connected to the outer surface of the guide post 6, realizing the reciprocating movement of the handle 3 through sliding cooperation with the guide post 6, providing the necessary movement space for the shock-absorbing structure. The guide sleeve 7 is a key component for movement cooperation. The handle 3 is fixedly connected to the right side of the outer surface of the guide sleeve 7 for stable grip by the user, transmitting the movement of the guide sleeve 7 to the hand, and simultaneously integrating... The functional component installation space includes the handle 3, which is the core component for operation and force application. An oil-draining head 10 is fixedly connected to the right side of the outer surface of the guide post 6 to guide the lubricating oil to distribute on the surface of the guide post 6 and reduce the flow resistance of the lubricating oil. The oil-draining head 10 is a key structure for lubrication distribution. An oil-draining groove 13 is opened on the outer surface of the oil-draining head 10, so that the lubricating oil can be evenly diffused to the surface of the guide post 6 along the groove, avoiding insufficient lubrication in some areas. The oil-draining groove 13 improves the uniformity of lubrication. An oil passage hole 14 is opened on the outer surface of the oil-draining head 10, allowing the lubricating oil to flow through the channel to different areas of the guide post 6, further expanding the lubrication coverage. The oil passage hole 14 enhances the comprehensiveness of lubrication.

[0020] Reference Figure 5 The inner surface of the handle 3 is provided with a storage component 15 for storing maintenance and lubrication tools, improving the convenience of carrying and accessing tools. The storage component 15 improves tool management efficiency. The storage component 15 includes a storage compartment 151. The bottom of the outer surface of the storage compartment 151 is hinged to the right side of the inner surface of the handle 3. The hinge structure enables the storage compartment 151 to be flipped open and closed, facilitating quick access to and from tools. The hinge connection ensures the flexibility of opening and closing. A buckle 152 is fixedly connected to the top of the outer surface of the storage compartment 151. The buckle fixes the storage compartment 151 and prevents accidental opening when not in operation. The buckle 152 ensures the stability of the storage state. The outer surface of the buckle 152 is engaged with the right side of the inner surface of the handle 3, realizing a reliable connection between the storage compartment 151 and the handle 3, ensuring that the storage compartment 151 does not loosen when the electric hammer 1 is working. The engagement improves the reliability of the structure.

[0021] Reference Figure 5The storage component 15 also includes a limiting post 153, which limits the maximum opening angle of the storage compartment 151 to prevent excessive flipping and structural damage. The limiting post 153 protects the hinge structure. The outer surface of the limiting post 153 is fixedly connected to the top of the outer surface of the storage compartment 151. A limiting groove 154 is provided on the top of the inner surface of the handle 3 to provide a sliding track for the limiting post 153. The opening and closing range is limited by the length of the groove. The limiting groove 154 cooperates to achieve angle control. The outer surface of the limiting post 153 is slidably connected to the inner surface of the limiting groove 154. Through the sliding cooperation between the limiting post 153 and the limiting groove 154, the opening and closing angle of the storage compartment 151 is precisely controlled. The sliding connection ensures control accuracy. A Phillips screwdriver 155 is inserted into the inner surface of the storage compartment 151 to store a special oiling tool, which is convenient to use for disassembling and installing the oil plug 9 at any time. The tool storage improves maintenance convenience.

[0022] Reference Figures 2-3 The right side of the outer surface of the electric pick 1 is elastically connected to the left side of the outer surface of the handle 3 via a spring 8. The elastic deformation of the spring 8 buffers the vibration of the electric pick 1 and reduces the vibration force transmitted to the hand. The spring 8 is the core shock absorption component. A dustproof hose 4 is fixedly connected to the right side of the outer surface of the electric pick 1 to prevent dust, sand and other impurities from entering the gap between the guide post 6 and the guide sleeve 7. The dustproof hose 4 extends the service life of the component. The right side of the outer edge of the dustproof hose 4 is fixedly connected to the left side of the outer surface of the handle 3. It extends and retracts synchronously with the reciprocating movement of the handle 3 to ensure that the dustproof range continuously covers the gap. The fixed connection ensures the continuity of dustproofing.

[0023] Reference Figures 2-3 A buffer pad 11 is fixedly connected to the left side of the outer surface of the guide post 6 to reduce the direct rigid collision between the guide post 6 and the guide sleeve 7, thereby reducing noise and component wear. The buffer pad 11 serves to protect and reduce noise. The right side of the outer surface of the buffer pad 11 is in contact with the left side of the outer surface of the guide sleeve 7, providing elastic buffering when the guide post 6 slides to the left limit position to avoid structural damage. The contact connection ensures that the buffering takes effect in time. One end of the spring 8 is fixedly connected to the right side of the outer surface of the electric hammer 1, and the other end of the spring 8 is fixedly connected to the left side of the outer surface of the handle 3, so that the elastic force of the spring 8 acts directly between the electric hammer 1 and the handle 3, improving the shock absorption effect. The fixed ends ensure effective force transmission.

[0024] Reference Figures 1-3The grease-draining head 10 is conical in shape. The conical structure reduces the flow resistance of lubricating oil and guides the lubricating oil to diffuse evenly on the surface of the guide post 6. The shape design optimizes lubrication efficiency. Multiple sets of grease-draining grooves 13 are arranged in a ring evenly on the outer surface of the grease-draining head 10. The multiple sets of ring-arranged grease-draining grooves 13 ensure that the lubricating oil is evenly distributed along the circumference of the guide post 6, avoiding poor local lubrication. The arrangement design improves lubrication uniformity. An oil inlet channel 12 is opened at the top of the inner surface of the handle 3 to provide a dedicated channel for lubricating oil injection, making it easy to replenish lubricating oil into the guide sleeve 7. The oil inlet 12 is a key channel for lubrication and maintenance. The top of the inner surface of the handle 3 is threaded with an oil plug 9, which seals the oil inlet 12 through the threaded connection to prevent lubricating oil leakage and impurities from entering. The oil plug 9 ensures the sealing of the lubrication system. The top of the outer surface of the handle 3 is equipped with a switch 5, which allows the user to conveniently control the start and stop of the electric pick 1. The switch 5 is a control component for operation safety and efficiency. The pick head 2 is fixedly connected to the left side of the outer surface of the electric pick 1. As the working execution component of the electric pick 1, it realizes the functions of breaking and chiseling through high-frequency vibration. The pick head 2 is the core working component.

[0025] Working principle: When it is necessary to add lubricating oil to the inside of the guide sleeve 7, first push down the buckle 152 on the top of the storage compartment 151 to release the buckle 152 from the inside of the handle 3. Then push the storage compartment 151 outward to make it flip along the inside of the handle 3 until the top of the Phillips screwdriver 155 inside the storage compartment 151 is exposed. Then pull out the Phillips screwdriver 155 and use it to unscrew the oil plug 9 on the top of the handle 3. Then inject lubricating oil from the top of the oil inlet channel 12 inside the handle 3, so that the lubricating oil enters the inside of the guide sleeve 7 along the oil inlet channel 12. After injecting an appropriate amount of lubricating oil, use the Phillips screwdriver 155 to tighten the oil plug 9 again to prevent lubricating oil leakage. Then insert the Phillips screwdriver 155 into the storage compartment 151 and push the storage compartment 151 to make the buckle 152 on the top of the storage compartment 151 engage with the inside of the handle 3 to prevent the storage compartment 151 from opening unnecessarily.

[0026] After the lubricating oil is applied, when using the electric hammer 1, the guide post 6 will move back and forth along the inside of the guide sleeve 7 due to the vibration of the electric hammer 1. When the guide post 6 moves back and forth, the lubricating oil inside the guide sleeve 7 will be evenly diffused to the surface of the guide post 6 due to the influence of the oil vent 13 on the oil vent 10 on the right side of the guide post 6. This allows the lubricating oil to be evenly applied to the surface of the guide post 6, avoiding insufficient lubrication on the surface of the guide post 6, which could cause wear between the workpieces due to friction.

[0027] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A shock-absorbing handle structure for an electric pick, comprising an electric pick (1), characterized in that: A guide post (6) is fixedly connected to the right side of the outer surface of the electric pick (1). A guide sleeve (7) is slidably connected to the outer surface of the guide post (6). A handle (3) is fixedly connected to the right side of the outer surface of the guide sleeve (7). An oil-draining head (10) is fixedly connected to the right side of the outer surface of the guide post (6). An oil-draining groove (13) is opened on the outer surface of the oil-draining head (10). An oil-passing hole (14) is opened on the outer surface of the oil-draining head (10). A storage component (15) is provided on the inner surface of the handle (3). The storage component (15) includes a storage compartment (151), the bottom of the outer surface of the storage compartment (151) is hinged to the right side of the inner surface of the handle (3), and a buckle (152) is fixedly connected to the top of the outer surface of the storage compartment (151), the outer surface of the buckle (152) is engaged with the right side of the inner surface of the handle (3).

2. The shock-absorbing handle structure of an electric pick as described in claim 1, characterized in that: The storage component (15) also includes a limiting post (153), the outer surface of the limiting post (153) is fixedly connected to the top of the outer surface of the storage compartment (151), the top of the inner surface of the handle (3) is provided with a limiting groove (154), the outer surface of the limiting post (153) is slidably connected to the inner surface of the limiting groove (154), and a Phillips screwdriver (155) is inserted into the inner surface of the storage compartment (151).

3. The shock-absorbing handle structure of an electric pick as described in claim 1, characterized in that: The right side of the outer surface of the electric pick (1) is elastically connected to the left side of the outer surface of the handle (3) via a spring (8). A dustproof hose (4) is fixedly connected to the right side of the outer surface of the electric pick (1), and the right side of the outer edge of the dustproof hose (4) is fixedly connected to the left side of the outer surface of the handle (3).

4. The shock-absorbing handle structure of an electric pick as described in claim 1, characterized in that: A buffer pad (11) is fixedly connected to the left side of the outer surface of the guide post (6), and the right side of the outer surface of the buffer pad (11) is in contact with the left side of the outer surface of the guide sleeve (7).

5. The shock-absorbing handle structure of an electric pick as described in claim 3, characterized in that: One end of the spring (8) is fixedly connected to the right side of the outer surface of the electric pick (1), and the other end of the spring (8) is fixedly connected to the left side of the outer surface of the handle (3).

6. The shock-absorbing handle structure of an electric pick as described in claim 1, characterized in that: The grease-draining head (10) is conical, and the grease-draining grooves (13) are provided in multiple sets and are evenly arranged in a ring on the outer surface of the grease-draining head (10).

7. The shock-absorbing handle structure of an electric pick as described in claim 1, characterized in that: The handle (3) has an oil inlet channel (12) on the top of its inner surface, and an oil plug (9) is threaded onto the top of its inner surface.

8. The shock-absorbing handle structure of an electric pick as described in claim 1, characterized in that: A switch (5) is provided on the top of the outer surface of the handle (3), and a pickaxe head (2) is fixedly connected to the left side of the outer surface of the electric pickaxe (1).

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