A quick extraction device

Abstract

The present invention relates to a quick extraction device, comprising a lever part, a clamping head assembly connected to the lever part through a rotating shaft part, the clamping head assembly comprising a clamping head and a clamping head connecting rod, the clamping head is connected to one end of the clamping head connecting rod through the rotating shaft part, the other end of the clamping head connecting rod is arranged in the lever part, the clamping head comprises a clamping head body, a clamping port used as an entry for extracting an object sleeve, and an installation port for placing the clamping head connecting rod, the clamping port is arranged on one side of the clamping head body, the installation port is arranged at the bottom center of the clamping head body, and a lever pad is arranged at the fulcrum of the lever part. Compared with the prior art, the present invention has the advantages of quick extraction, strong functionality, stable and reliable use, etc.

Description

Technical Field

[0001] The invention relates to an extraction tool, in particular to a quick extraction device. Background Art

[0002] With the progress and development of social life, emergency rescue, military combat skills, the use of various mobile equipment such as power supply vehicles, communication vehicles, emergency rescue mobile equipment vehicles, radar vehicles, etc. is increasing and becoming more frequent. Before the above equipment starts working in the field, it must first be grounded (working ground, safety ground and lightning protection ground). The grounding requires a small grounding resistance and fast grounding and withdrawal. The existing extraction device cannot achieve fast and effective extraction and has poor functionality. Summary of the invention

[0003] The purpose of the present invention is to overcome the defects of the above-mentioned prior art and provide a quick extraction device with fast extraction speed, strong functionality and convenient disassembly.

[0004] The purpose of the present invention can be achieved by the following technical solutions:

[0005] A quick extraction device comprises a lever part, a clamping head assembly connected to the lever part through a rotating shaft part, the clamping head assembly comprises a clamping head and a clamping head connecting rod, the clamping head is connected to one end of the clamping head connecting rod through the rotating shaft part, the other end of the clamping head connecting rod is arranged in the lever part, the clamping head comprises a clamping head body, a clamping mouth used as an entrance for extracting an object sleeve, and a mounting mouth used for placing the clamping head connecting rod, the clamping mouth is arranged on one side of the clamping head body, the mounting mouth is arranged on the other side of the clamping head body perpendicular to the side where the clamping mouth is located, and a lever pad is arranged at the fulcrum of the lever part;

[0006] When it is necessary to remove a grounding rod or pole buried in the soil, the clamping mouth of the clamp is inserted into the grounding rod or pole horizontally, the lever pad contacts the supporting ground, and force is applied to the lever part. The clamping mouth bites the grounding rod or pole and then lifts it up. After the grounding rod or pole is lifted up a few centimeters, the lever part is held upward and loosened. The mouth automatically falls down due to gravity and the free rotation of the shaft part, and then the lever part is pressed down, and the grounding rod or pole is lifted up again. In this way, the lever part is held up and down reciprocatingly, and the grounding rod or pole is quickly removed from the ground.

[0007] Furthermore, the bayonet is a rectangular opening.

[0008] Furthermore, the installation opening is a U-shaped opening, and the U-shaped opening is arranged at a central position of the other side of the clamp body which is perpendicular to the side where the clamp opening is located.

[0009] Furthermore, the clamp body on both sides of the U-shaped opening is provided with bolt holes penetrating the U-shaped opening.

[0010] Furthermore, the bolt hole and the matching bolt constitute the rotating shaft portion.

[0011] Furthermore, a blade block screw fixing hole for installing and fixing the blade block is provided on the surface of the chuck body next to the bayonet, the blade block is fixed to the chuck body by screws, and the blade portion of the blade block is arranged facing the bayonet.

[0012] Furthermore, the lever portion includes an upper lever section, a middle lever section and a lower lever section which are detachably connected from top to bottom in sequence, the lower lever section is an L-shaped rod structure with a rounded corner, and the outer side of the bottom rounded corner of the lower lever section is provided with a lever pad with the same curvature.

[0013] Furthermore, a lever lower section reinforcement rib is provided between the vertical rod and the horizontal rod of the lever lower section of the L-shaped rod-shaped structure with a rounded corner.

[0014] Furthermore, the top and bottom of the middle section of the lever are provided with insertion holes for detachably connecting the upper section of the lever and the lower section of the lever.

[0015] Furthermore, the upper lever section, the middle lever section and the lower lever section are detachably connected by threaded connection.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1) The quick extraction device of the present invention is provided with a clamp assembly, which can clamp the grounding rod or pole to be pulled out through the clamp, and the grounding rod or pole is automatically loosened and dropped by the free-fall joint of the clamp and the lever part. Based on the lever principle, the lever pad is used as a fulcrum, and the downward pressure of the upper section of the lever is converted into a huge force to pull up the grounding rod or pole, so that the grounding rod or pole can be quickly pulled out, and the operation is simple;

[0018] 2) The upper lever section, the middle lever section and the upper lever section of the present invention are detachably connected, which is convenient for storage, and the detached upper lever section and the middle lever section can be used as auxiliary tools, thereby improving the functionality of the use thereof;

[0019] 3) A blade block is provided at the bayonet of the clamp head of the present invention, and the blade portion of the blade block is arranged corresponding to the edge of the bayonet, so that the bayonet can stably clamp the grounding rod or pole with a smooth surface;

[0020] 4) The device of the present invention has a simple structure, is easy to carry, can be reused, and has strong practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of a quick extraction device in an embodiment;

[0022] Figure 2It is a schematic diagram of the three-dimensional structure of the clamping head of the quick extraction device in the embodiment at a certain angle;

[0023] Figure 3 It is a schematic diagram of the three-dimensional structure of the clamping head of the quick extraction device in the embodiment at another angle;

[0024] Figure 4 It is a schematic diagram of the planar structure of the clamping head of the quick extraction device in the embodiment;

[0025] Figure 5 It is a structural schematic diagram of the lever part in the embodiment;

[0026] The numbers in the figure show:

[0027] 1. Lever part, 11. Upper section of lever, 111. Connecting part, 12. Middle section of lever, 13. Lever pad, 14. Reinforcing rib of lower section of lever, 15. Lower section of lever, 151. Insertion end of lower section, 2. Clip, 21. Clip body, 22. Clip socket, 23. Blade block, 24. Screw fixing hole of blade block, 25. U-shaped opening, 26. Bolt hole, 3. Clip connecting rod, 4. Rotating shaft part. DETAILED DESCRIPTION

[0028] The present invention is described in detail below in conjunction with the accompanying drawings and specific embodiments. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work should belong to the scope of protection of the present invention.

[0029] Example

[0030] The invention relates to a quick extraction device suitable for quickly extracting a grounding rod. The quick extraction device can quickly extract a grounding rod driven or drilled into the ground. The quick extraction device can also be used to extract a rod deeply buried in the ground and difficult to extract.

[0031] like Figure 1 As shown, the quick extraction device of the present invention comprises a lever portion 1, a clamp assembly and a rotating shaft portion 4. The lever portion 1 comprises a lever lower section 15, a lever lower section reinforcing rib 14, a lever pad 13, a lever middle section 12 and a lever upper section 11. The clamp assembly comprises a clamp 2 and a clamp connecting rod 3.

[0032] The upper lever section 11, the middle lever section 12 and the lower lever section 15 are connected in sequence from top to bottom. The upper lever section 11 and the middle lever section 12 are vertical rod-shaped structures, and the lower lever section 15 is a rounded L-shaped rod-shaped structure. A lever pad 13 with the same curvature is fixed on the outer side of the rounded corner at the bottom of the lower lever section 15. A lower lever section reinforcement rib 14 is connected between the vertical rod and the horizontal rod of the lower lever section 15 to withstand the strength required when removing the grounding rod or lever. The lower lever section reinforcement rib 14 is arranged in an inclined state. One end of the clamp 2 is connected to the clamp connecting rod 3 through the rotating shaft part 4, and the other end of the clamp connecting rod 3 is arranged inside the horizontal rod of the lower lever section 15 to ensure the free and flexible rotation of the clamp for rotation and withdrawal.

[0033] like Figure 2 As shown, the chuck 2 includes a chuck body 21, a bayonet 22 and a blade block 23. The chuck body 21 is cut from a rectangular body structure. Specifically, one side of the chuck body 21 is recessed inwardly and provided with a bayonet 22, and the bayonet 22 is a rectangular opening. A blade block screw fixing hole 24 is provided on the surface of the chuck body 21 next to the rectangular opening, and the blade block screw fixing hole 26 is used to install and fix the blade block 23. The blade block 23 is fixed to the chuck body 21 by screws, and the blade surface of the blade block 23 is arranged facing the bayonet 22, so that the bayonet 22 can stably clamp the grounding rod or pole with a smooth surface. A U-shaped opening 25 is provided at the central position of the other side of the chuck body 21 perpendicular to the bayonet 22, and bolt holes 26 are provided through the chuck body 21 at both ends of the U-shaped opening 25, and the bolt holes 26 are used to install bolts. The bayonet 22 is used as a lateral insertion port for the grounding rod or pole, the blade 23 is used to assist in clamping the grounding rod or pole, the U-shaped opening 25 is used to place the clamp head connecting rod 3, and the clamp head connecting rod 3 is connected to the clamp head 2 by passing the bolt through the bolt hole 26, and the clamp head 2 and the clamp head connecting rod 3 are freely rotated with the bolt as the axis. The bolt and the bolt hole 26 constitute the rotating shaft part 4. When the bayonet 22 is inserted into the grounding rod or pole, and the clamp head connecting rod 3 is placed in the U-shaped opening 25, the entire clamp head 2 and the lever part 1 form a structure similar to an F-shaped structure.

[0034] The working principle of the quick extraction device of the present invention is:

[0035] When it is necessary to remove a grounding rod or other rod buried in the soil, the clamp of the clamp head is inserted horizontally into the grounding rod or rod, the lever pad contacts the supporting ground, and the upper section of the lever is pressed downward. The clamp will bite the grounding rod or rod and lift it up. After lifting it up a few centimeters, loosen the upper section of the lever upward. The clamp will automatically fall due to gravity and the flexibility of the free rotation of the shaft, causing the clamp to move downward naturally. Then press the upper section of the lever downward, and the grounding rod or rod will be lifted up again. In this way, the upper section of the lever is operated up and down, and the grounding rod or rod is taken out of the ground step by step.

[0036] The upper lever section 11, the middle lever section 12 and the lower lever section 15 of the present invention are detachably connected. Figure 5 As shown, in this embodiment, as a preferred solution, a connecting portion 111 is provided at the bottom end of the upper lever section 11, and the connecting portion 111 includes an upper section insertion end and an upper section fixed end, the outer diameter of the upper section insertion end is smaller than the outer diameter of the upper section fixed end, and the upper section fixed end is fixed to the inner side of the bottom end of the upper lever section 11. Insertion holes are provided at the top and bottom ends of the middle lever section 12, the insertion hole at the top is used to connect the insertion end of the upper lever section 11, and the insertion hole at the bottom is used to connect the lower lever section 15; specifically, a lower section insertion end 151 is provided at the top of the vertical rod of the lower lever section 15. The upper lever section 11, the middle lever section 12 and the lower lever section 15 are detachably connected, which is convenient for storage and multi-purpose. For example, the disassembled upper lever section 11 and the middle lever section 12 can be used as auxiliary tools.

[0037] As another embodiment, the upper lever section 11, the middle lever section 12 and the lower lever section 15 can also be detachably connected by a threaded connection. For example, the bottom end of the upper lever section 11 and the top end of the lower lever section 15 are provided with external threads, and the top and bottom ends of the middle lever section 12 are respectively provided with internal threads matching the external threads of the bottom end of the upper lever section 11 and the top end of the lower lever section 15.

[0038] The present invention ingeniously utilizes a bayonet to clamp the grounding rod or pole to be pulled up, utilizes a free-falling joint between a clamp head and a lever to automatically loosen the grounding rod or pole and let it fall, utilizes the lever principle, uses a lever pad as a fulcrum, and converts the downward pressure of the upper section of the lever into a huge force for pulling up the grounding rod or pole, thereby being able to quickly pull up the grounding rod or pole.

[0039] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person familiar with the technical field can easily think of various equivalent modifications or substitutions within the technical scope disclosed by the present invention, and these modifications or substitutions should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention shall be based on the protection scope of the claims.

Claims

1. A quick extraction device, characterized in that: The invention comprises a lever part (1), a clamping head assembly connected to the lever part (1) via a rotating shaft part (4), the clamping head assembly comprising a clamping head (2) and a clamping head connecting rod (3), the clamping head (2) being connected to one end of the clamping head connecting rod (3) via the rotating shaft part (4), the other end of the clamping head connecting rod (3) being arranged in the lever part (1), the clamping head (2) comprising a clamping head body (21), a clamping mouth (22) used as an entrance for extracting an object sleeve, and a mounting mouth for placing the clamping head connecting rod (3), the clamping mouth (22) being arranged on one side of the clamping head body (21), the mounting mouth being arranged on the other side of the clamping head body (21) perpendicular to the side where the clamping mouth (22) is located, and a lever pad (13) is arranged at the fulcrum of the lever part (1); When it is necessary to extract the grounding rod or pole buried in the soil, the clamping mouth (22) of the clamping head (2) is inserted into the grounding rod or pole horizontally, the lever pad (13) contacts the supporting ground, and force is applied to the lever part (1). The clamping mouth (22) of the clamping head (2) bites the grounding rod or pole and then lifts it upward. After the grounding rod or pole is lifted up a few centimeters, the lever part (1) is held and loosened upward. The clamping mouth (22) automatically falls down due to gravity and the free rotation of the rotating shaft part (4). Then, the lever part (1) is pressed down, and the grounding rod or pole is lifted up again. In this way, the lever part (1) is held and operated up and down reciprocatingly, and the grounding rod or pole is quickly taken out from the ground. A blade screw fixing hole (24) for mounting and fixing a blade block (23) is provided on the surface of the chuck body (21) next to the bayonet (22); the blade block (23) is fixed to the chuck body (21) by screws, and the blade portion of the blade block (23) is arranged facing the bayonet (22); The lever portion (1) comprises an upper lever section (11), a middle lever section (12) and a lower lever section (15) which are detachably connected in sequence from top to bottom. The lower lever section (15) is an L-shaped rod structure with a rounded corner. The outer side of the rounded corner at the bottom of the lower lever section (15) is provided with a lever pad (13) with the same curvature.

2. A quick extraction device according to claim 1, characterized in that: The bayonet (22) is a rectangular opening.

3. A quick extraction device according to claim 1, characterized in that: The installation opening is a U-shaped opening (25), and the U-shaped opening (25) is arranged at the central position of the other side of the clamp body (21) which is perpendicular to the side where the clamp opening (22) is located.

4. A quick extraction device according to claim 3, characterized in that: The clamp body (21) on both sides of the U-shaped opening (25) is provided with bolt holes (26) penetrating the U-shaped opening (25).

5. A quick extraction device according to claim 4, characterized in that: The bolt hole (26) and the matching bolt form the rotating shaft portion (4).

6. A quick extraction device according to claim 1, characterized in that: A lever lower section reinforcing rib (14) is provided between the vertical rod and the horizontal rod of the lever lower section (15) of the rounded-angle L-shaped rod-shaped structure.

7. A quick extraction device according to claim 1, characterized in that: The top and bottom of the middle lever section (12) are provided with insertion holes for detachably connecting the upper lever section (11) and the lower lever section (15).

8. A quick extraction device according to claim 1, characterized in that: The upper lever section (11), the middle lever section (12) and the lower lever section (15) are detachably connected via threaded connection.

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