阅读说明：本技术 一种用于接地钎子的起拔器 (Pulling device for grounding drill rod ) 是由 刘晓东 谢浩 王刚 贺兆军 刘子怡 于 2019-11-08 设计创作，主要内容包括：本发明涉及一种用于接地钎子的起拔器,包括螺杆、底座螺母、扳柄、挂环、吊钩、支撑杆、地脚,螺杆与底座螺母螺纹连接,螺杆顶端焊接有扳柄,底端固定有挂环,挂环与吊钩活动连接,吊钩为两个；支撑杆径向均布在底座螺母四周,支撑杆一端与底座螺母通过螺栓连接,另一端与地脚连接；扳柄上设有至少两个与扳手相匹配的平面；所述的底座螺母径向均布有凸起部,凸起部上设有安装孔,螺栓穿过安装孔与支撑杆,底座螺母通过凸起部与支撑杆铰接。优点是：适用于东北寒冷地区接地钎子的起拔。支撑杆采用活动结构,可收拢和张开,张开时支撑地面方便垂直提升接地钎子,收拢时可夹持接地钎子的上部旋转,与冻土产生间隙。(The invention relates to a pulling device for a grounding drill rod, which comprises a screw rod, a base nut, a trigger, hanging rings, a lifting hook, a supporting rod and a ground pin, wherein the screw rod is in threaded connection with the base nut; the support rods are radially and uniformly distributed around the base nut, one end of each support rod is connected with the base nut through a bolt, and the other end of each support rod is connected with the ground leg; the wrench handle is provided with at least two planes matched with the wrench; the base nut radially and evenly distributed with the bellying, the bellying is equipped with the mounting hole, the bolt passes mounting hole and bracing piece, the base nut passes through the bellying and articulates with the bracing piece. The advantages are that: the method is suitable for pulling out the grounding drill rod in the northeast cold area. The support rod adopts a movable structure, can be folded and unfolded, supports the ground to conveniently and vertically lift the grounding drill rod when being unfolded, and can clamp the upper part of the grounding drill rod to rotate when being folded so as to form a gap with frozen soil.)

1. A pulling device for a grounding drill rod is characterized by comprising a screw rod, a base nut, a trigger, hanging rings, a lifting hook, a supporting rod and a ground pin, wherein the screw rod is in threaded connection with the base nut; the support rods are radially and uniformly distributed around the base nut, one end of each support rod is connected with the base nut through a bolt, and the other end of each support rod is connected with the ground leg; the wrench handle is provided with at least two planes matched with the wrench; the base nut radially and evenly distributed with the bellying, the bellying is equipped with the mounting hole, the bolt passes mounting hole and bracing piece, the base nut passes through the bellying and articulates with the bracing piece.

2. The extractor for the grounding drill rod as claimed in claim 1, wherein the number of the supporting rods is more than 3.

3. The extractor for a grounding flux as claimed in claim 1, wherein said screw is provided with trapezoidal threads.

4. A extractor for a grounding flux according to claim 1, wherein the pitch of the thread on said screw is 4-6 mm.

5. The extractor for the grounding drill rod as claimed in claim 1, wherein the screw rod is welded with a limit pad, and the limit pad is arranged at the lower part of the trigger.

6. The extractor for the grounding drill rod as claimed in claim 1, wherein the ground pin comprises a stabilization pad and an anti-slip drill rod, the stabilization pad is of a flat plate structure, the anti-slip drill rod is welded on the bottom surface of the stabilization pad, and the upper surface of the stabilization pad is welded with the support rod.

Technical Field

The invention relates to a power distribution operation auxiliary device, in particular to a pulling device for a grounding drill rod.

Background

In the northeast area, frozen soil layers can be generated in winter, the soil quality becomes abnormally hard, and in the process of assembling and disassembling the grounding wire in power distribution operation (including partial power transmission operation), the existing grounding drill rod is difficult to assemble and pull. The grounding brazing rod commonly used at present has a larger structure, such as a structure with a handle at the top of the grounding brazing rod or a T-shaped structure. The depth of the grounding body under the ground is not required to be less than 600mm in the installation regulation, even if the grounding drill rod is hammered into the ground to meet the specified requirement, the grounding drill rod is often difficult to take out or even cannot be taken out in the process of removing the grounding wire after the operation is finished, and the power distribution operation is delayed.

Disclosure of Invention

In order to overcome the defects of the prior art, the invention aims to provide the pulling device for the grounding drill rod, which is suitable for northeast areas, is convenient to pull the grounding drill rod, is foldable, can reduce the space volume and is convenient to transport.

In order to achieve the purpose, the invention is realized by the following technical scheme:

a pulling device for a grounding drill rod comprises a screw rod, a base nut, a trigger, two hanging rings, two hanging hooks, a supporting rod and a ground foot, wherein the screw rod is in threaded connection with the base nut; the support rods are radially and uniformly distributed around the base nut, one end of each support rod is connected with the base nut through a bolt, and the other end of each support rod is connected with the ground leg; the wrench handle is provided with at least two planes matched with the wrench; the base nut radially and evenly distributed with the bellying, the bellying is equipped with the mounting hole, the bolt passes mounting hole and bracing piece, the base nut passes through the bellying and articulates with the bracing piece.

The number of the supporting rods is more than 3.

The screw rod is provided with trapezoidal threads.

The thread pitch of the screw is 4-6 mm.

The screw rod on weld have a spacing pad, spacing pad sets up in the trigger lower part.

The lower margin include the stabilization pad, anti-skidding borer, stabilize pad flat structure, stabilize pad bottom welding and have anti-skidding borer, stabilize pad upper surface and bracing piece welding.

Compared with the prior art, the invention has the beneficial effects that:

the pulling device for the grounding drill rod is reasonable in overall structure, convenient to use and suitable for pulling the grounding drill rod in the northeast cold region. The support rod adopts a movable structure, can be folded and unfolded, supports the ground to conveniently and vertically lift the grounding drill rod when being unfolded, can clamp the upper part of the grounding drill rod when being folded, and rotates the grounding drill rod in a small range, so that a gap is formed between the grounding drill rod and frozen soil, and the grounding drill rod is convenient to further pull. Meanwhile, the folded support rods reduce the space volume and facilitate transportation. Compared with the handle in the prior art, the pulling-out tool adopts the wrench handle with the plane matched with the wrench, the space volume of the pulling-out tool is reduced, and the pulling-out operation can be realized by using the wrench which is necessary for operating personnel.

Drawings

Fig. 1 is a first schematic structural diagram of the present invention.

FIG. 2 is a second schematic structural diagram of the present invention.

Fig. 3 is a schematic structural view of the support rod.

Fig. 4 is a schematic view of the connection of the screw.

Fig. 5 is a schematic view of the connection of the base nut.

Fig. 6 is a schematic view of a base nut.

FIG. 7 is a front cross-sectional view of the base nut.

Fig. 8 is a schematic view of the hook structure.

In the figure: 1-screw 2-base nut 3-trigger 4-hanging ring 5-lifting hook 6-support bar 7-ground foot 8-spacing pad 9-stabilizing pad 10-anti-skid drill 11-hanging scaffold 12-grounding drill 13-bulge 14-mounting hole.

Detailed Description

The present invention will be described in detail below with reference to the accompanying drawings, but it should be noted that the present invention is not limited to the following embodiments.

Referring to fig. 1-8, a pulling device for a grounding drill rod comprises a screw rod 1, a base nut 2, a trigger 3, a hanging ring 4, a lifting hook 5, a support rod 6 and a ground pin 7, wherein the screw rod 1 is in threaded connection with the base nut 2, the trigger 3 is welded at the top end of the screw rod 1, the hanging ring 4 is fixed at the bottom end of the screw rod 1, the hanging ring 4 is movably connected with the lifting hook 5, and the number of the lifting hooks 5 is two; the support rods 6 are radially and uniformly distributed around the base nut 2, one end of each support rod 6 is connected with the base nut 2 through a bolt, and the other end of each support rod 6 is connected with the ground feet 7; the wrench handle 3 is provided with at least two planes matched with the wrench; the base nut 2 radially and evenly distributed with the bellying 13, be equipped with mounting hole 14 on the bellying 13, the bolt passes mounting hole 14 and bracing piece 6, base nut 2 passes through the bellying 13 and is articulated with bracing piece 6.

The number of the support rods 6 is more than 3, and fig. 5 shows the case of 3 support rods 6. The screw rod 1 is provided with trapezoidal threads, so that the pulling stability of the screw rod 1 is improved. The thread pitch of the thread on the screw rod 1 is 4-6mm, the external diameter of the thread is 20-22mm, and the thread pitch is 6mm, so that the pulling stability is ensured, and the grounding drill rod 12 can be pulled out in the shortest time. See fig. 4, the screw 1 is welded with a limit pad 8, and the limit pad 8 is arranged at the lower part of the trigger 3 to prevent the screw 1 from moving out of the base nut 2. See fig. 3, lower margin 7 includes stabilizing pad 9, anti-skidding borer 10, and stabilizing pad 9 flat structure, and the welding of stabilizing pad 9 bottom surface has anti-skidding borer 10, and stabilizing pad 9 upper surface and bracing piece 6 welding, and stabilizing pad 9 is used for stabilizing support bracing piece 6, and anti-skidding borer 10 ensures to stabilize support bracing piece 6 on frozen soil or sand.

Referring to fig. 4, the hanging ring 4 can be welded on the bottom surface of the hanging scaffold 11, the top surface of the hanging scaffold 11 is welded with the bottom end of the screw rod 1, and the round plate-shaped structure of the hanging scaffold 11 can increase the diameter of the hanging ring 4, so that the moving distance between the hanging hooks 5 is increased. Referring to fig. 8, the hook 5 adopts an S-shaped hook structure with a closed upper end to ensure that the hook 5 cannot be separated from the hanging ring 4. The whole surface of the extractor is galvanized, so that the anti-rust effect is achieved, and the durability of the extractor is improved.

The screw rod 1 can be screwed by a common wrench, the pulling stroke is about 30 cm (slightly different because of the supporting angle), and when the drill rod is 30 cm away from the ground, the grounding drill rod 12 can be easily pulled out by taking down the puller by hand.

After the puller is closed, the handle part at the upper part of the grounding drill rod 12 can be transversely clamped, the function of rotating the grounding drill rod 12 is achieved, a gap is formed between the grounding drill rod 12 and frozen soil, and further pulling is facilitated. The labor-saving ground wire installation device has the advantages that time, labor and materials are wasted for workers in the same line to install the ground wire, and time, labor and materials are saved. And the risk of unreliable grounding can be greatly reduced.