Ground plug capable of improving grounding effect

Abstract

The invention relates to a ground plug for improving a grounding effect, which comprises a conductive insertion rod and a wire connected with the conductive insertion rod, the lower part of the conductive insertion rod is an insertion section used for being inserted into the ground, the conductive insertion rod is internally provided with an axially extending diversion hole, and the upper end of the diversion hole forms an inlet at the top end or the side wall of the conductive insertion rod. The lower end of the flow guide hole extends downwards to the inserting section, a plurality of branch flow holes communicated with the flow guide hole are evenly distributed in the side wall of the inserting section on the lower portion of the conductive inserting rod in the circumferential direction, the inlet is communicated with a container, and a flow adjusting valve is arranged between the container and the inlet and used for adjusting flow. The flow guide hole and the branch hole are formed in the conductive insertion rod, and the container and the flow adjusting valve are connected to the inlet of the flow guide hole, so that water can be injected into the container, the flow of the water is adjusted through the flow adjusting valve, and then the water flows into soil from the flow guide hole and the branch hole, the conductivity of the soil near the conductive insertion rod is improved, and the grounding effect of the ground plug is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of conductive connection, and in particular relates to a ground plug for improving grounding effect. Background Art

[0002] A grounding plug is a temporary grounding device commonly used when repairing equipment. When repairing equipment, the original grounding line of the equipment may be broken and cannot be used, or the equipment may not be effectively grounded due to independent power supply. In order to avoid safety accidents caused by accidental leakage, a temporary grounding plug is usually used to ground the equipment or its components.

[0003] The structure of the grounding plug is relatively simple, mainly including a plug rod and a wire. One end of the wire is connected to the plug rod, and the other end is connected to the equipment or parts that need to be grounded. Generally, the floor inside the workshop is hardened or epoxy floor, and the plug rod cannot be inserted into the ground to achieve grounding. Therefore, the plug rod is generally inserted into the outdoor soil, and the wire extends into the workshop to be electrically connected to the equipment or parts. However, the outdoor soil is dry, and the plug rod needs to be inserted into the ground about 40~50cm deep and contact the moist soil to achieve good grounding. However, it is not easy for manpower to insert the plug rod into the originally dry soil, and it needs to be inserted very deep, which makes it even more difficult. Usually, manpower can easily insert the plug rod into the ground 15~20cm, but the water content in the soil at this depth is too low under the scorching sun, resulting in low soil conductivity and poor grounding effect of the ground plug.

[0004] In order to solve the above technical problems, the invention patent with patent application number CN202311549859.3 discloses a portable high-voltage line connection grounding device. The patent uses a hydraulic device to apply pressure to the rod so that the rod can be inserted deep into the ground to ensure the grounding effect. Although this method solves the above technical problems, the grounding equipment of this structure is expensive, heavy, and extremely not portable. Summary of the invention

[0005] The technical problem to be solved by the present invention is to provide a ground plug with improved grounding effect, so as to solve the technical problem that the ground plug has poor grounding effect when inserted into soil with low water content.

[0006] In order to solve the above technical problems, the technical solution adopted by the present invention is: a ground plug for improving the grounding effect, including a conductive plug rod and a wire connected to the conductive plug rod, the lower part of the conductive plug rod is a plug section for inserting into the ground, an axially extending guide hole is opened inside the conductive plug rod, the upper end of the guide hole forms an entrance on the top or side wall of the conductive plug rod, and the lower end of the guide hole extends downward to the plug section, and a plurality of branch holes connected to the guide hole are evenly distributed on the side wall of the plug section at the lower part of the conductive plug rod, the inlet is connected to a container, and a flow regulating valve is arranged between the container and the inlet for regulating the flow.

[0007] As a preferred embodiment, the top of the conductive rod is vertically connected to a handle, the outside of the handle is covered with an insulating sleeve, the conductive rod is connected to the middle position of the handle, the inlet is located at the top of the conductive rod, a through hole connected to the inlet is opened on the handle, the through hole is coaxial with the guide hole, a flow regulating valve is connected to the top of the through hole, the inlet end of the flow regulating valve is connected to the container, and the outlet end at the bottom is connected to the through hole.

[0008] As a preferred solution, the inlet is located at the top of the conductive plug rod, the top of the conductive plug rod is connected to the outlet end at the lower end of the flow regulating valve, and the inlet end of the top of the flow regulating valve is connected to a handle, which is arranged perpendicular to the conductive plug rod, and the handle includes a three-way connecting seat and left and right tube bodies located in the middle, a "T"-shaped flow channel is arranged inside the three-way connecting seat, the lower end of the three-way connecting seat is a lower joint that is connected to the flow channel and is used to connect to the inlet end of the flow regulating valve, and the two sides of the three-way connecting seat are respectively a left joint and a right joint that are connected to the flow channel and are used to connect to the container, the left tube body is sleeved on the periphery of the left joint and fixedly connected to the three-way connecting seat, the right tube body is sleeved on the periphery of the right joint and fixedly connected to the three-way connecting seat, and the outside of the handle is covered with an insulating sleeve, and the insulating sleeves form plug interfaces for inserting containers at the two free ends of the left and right tube bodies respectively.

[0009] As a preferred solution, the left joint or the right joint is tubular and has an internal thread on the inner circumferential wall, and the open end of the container is provided with an external thread head threadedly connected to the left joint or the right joint.

[0010] As a preferred solution, a one-way air valve is provided at the top of the container axially upward along the conductive plug rod, and the one-way air valve is conductive from the outside of the container to the inside.

[0011] As a preferred solution, a conductive assembly shaft is vertically connected to the conductive plug rod, and an insertion hole is axially provided at one end of the assembly shaft away from the conductive plug rod, and a plug that matches the insertion hole is provided at one end of the wire, and the plug can be rotatably inserted into the insertion hole, and an insulating winding wheel is rotatably sleeved on the assembly shaft, and an insulating locking knob is threadedly connected at one end of the assembly shaft away from the conductive plug rod, and an internal threaded hole that matches the assembly shaft is provided on the locking knob, and one end of the locking knob abuts against the winding wheel for adjusting the rotational resistance of the winding wheel and preventing the winding wheel from separating from the assembly shaft; a rotating handle is rotatably connected to the outer edge of one end of the winding wheel facing away from the conductive plug rod, and the rotating handle is connected to the winding wheel by a screw, and the axial direction of the screw is parallel to the axial direction of the assembly shaft.

[0012] As a preferred solution, an insulating fixed block is fixedly sleeved on the conductive plug rod, a winding wheel is slidably sleeved on the conductive plug rod below the fixed block, the winding wheel and the fixed block are connected by a telescopic sleeve, the telescopic sleeve is corrugated and can be axially elastically retracted, a side of the winding wheel close to the bottom end of the conductive plug rod can slide to the bottom end of the conductive plug rod, the conductive plug rod above the fixed block is also covered with an insulating sleeve, one end of the wire is connected to the conductive plug rod above the fixed block, the conductor of the wire passes through the insulating sleeve, and the insulating layer of the wire is sealed and connected to the insulating sleeve.

[0013] The cam is connected to the guide rail below the fixing ring, and the guide rail is connected to the guide rail via an insulated sliding sleeve. The sliding sleeve is connected to the outside of the fixing ring, and a limiting ring is connected to the top of the sliding sleeve. The limiting ring is opposite to the top surface of the fixing ring, and the lower end of the sliding sleeve is fixedly connected to the winding wheel. The sliding sleeve can slide up and down. When the limiting ring abuts against the top surface of the fixing ring, the lower end of the winding wheel drops to be flush with or lower than the lower end of the conductive plug rod. The length of the conductive plug rod above the fixing ring is greater than the length of the plug-in section. The conductive plug rod above the fixing ring is also covered with an insulating sleeve. One end of the wire is conductively connected to the fixing ring, and the other end extends downward along the sliding sleeve to the winding wheel and passes through the through hole on the winding wheel to pass through the wheel surface of the winding wheel and is wound on the winding wheel. The wire located in the sliding sleeve is spirally wound on the conductive plug rod.

[0014] As a preferred solution, the lower end of the plug-in section is in the shape of a drill bit.

[0015] As a preferred solution, the conductor includes a grounding wire and a detection wire, the grounding wire and the detection wire are simultaneously connected to the conductive plug rod through a plug, the conductive plug rod connects the grounding wire and the detection wire, the end of the grounding wire away from the conductive plug rod is connected to the device, the end of the detection wire away from the conductive plug rod is connected to a detection power supply through a voltage divider resistor, the voltage divider resistor and an audible and visual alarm are connected in parallel to the positive pole of the detection power supply, the negative pole of the audible and visual alarm is connected to the negative pole of the detection power supply through a transistor, the negative pole of the voltage divider resistor is connected to the collector of the transistor, and one end of the grounding wire connected to the device is simultaneously connected to the negative pole of the detection power supply.

[0016] The beneficial effects of the present invention are as follows: by providing a guide hole and a branch hole inside the conductive plug, and connecting a container and a flow regulating valve at the entrance of the guide hole, water can be injected into the container, and the water can flow into the soil from the guide hole and the branch hole after the flow is regulated by the flow regulating valve, and penetrate downward along the soil, thereby improving the conductivity of the soil near the conductive plug, thereby improving the grounding effect. The flow regulating valve can adjust the flow rate of the water, so that the water in the container does not flow out too quickly, thereby extending the time for the conductive plug to be efficiently grounded.

[0017] The present invention further hides the container by arranging the container in the left and right tube bodies of the handle, thereby preventing the connection between the container and the flow regulating valve from being damaged by collision. At the same time, the double container structure can also increase the water capacity and further extend the time for the conductive rod to be efficiently grounded.

[0018] The present invention further provides a receiving reel on the conductive plug rod. When in use, the reel is used to cover the soil surface to prevent direct sunlight from causing excessive evaporation of soil moisture. This can reduce the consumption rate of water in the container, reduce the water flow rate, and further extend the time for the conductive plug rod to be efficiently grounded. At the same time, the wires can also be reeled in.

[0019] The present invention further detects the conductive state of the wire by setting an audible and visual alarm to ensure the conductivity of the wire and the effectiveness of the connection between the wire and the conductive plug. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The specific embodiments of the present invention are further described in detail below with reference to the accompanying drawings, wherein: Figure 1 is a schematic diagram of the specific structure of the ground plug according to Embodiment 1 of the present invention; Figure 2 yes Figure 1 B-direction view; Figure 3 yes Figure 1 A magnified view of part A in FIG. Figure 4 It is a schematic diagram of the half-section structure of the locking knob; Figure 5 This is a schematic diagram of the specific connection structure of the ground plug container described in Example 2 of the present invention; Figure 6 is a schematic diagram of the specific structure of the ground plug according to Embodiment 3 of the present invention; Figure 7 is another specific structural schematic diagram of the ground plug described in Example 3 of the present invention; Figure 8 is a circuit diagram of a wire conduction state detection circuit according to Embodiment 3 of the present invention; Figure 1 to Figure 8Middle: 1. Conductive plug; 101. Connecting section; 2. Conductor; 201. Grounding wire; 202. Detection wire; 3. Diversion hole; 4. Inlet; 5. Branch hole; 6. Container; 601. External thread head; 7. Flow control valve; 701. Inlet end; 702. Outlet end; 8. Handle; 801. Three-way connector; 802. Left tube body; 803. Right tube body; 804. Flow channel; 805. Lower joint; 806. Left joint; 807. Right joint; 808. Plug interface; 9. Insulating sleeve; 10. Through hole; 11. One-way air valve; 12. Assembly shaft; 13. Plug hole; 14. Plug; 15. Winding wheel; 16. Locking knob; 17. Internal threaded hole; 18. Transistor; 19. Rotating handle; 20. Screw; 21. Fixed block; 22. Telescopic sleeve; 23. Fixed ring; 24. Sliding sleeve; 25. Limiting ring; 26. Through hole; 27. Voltage-dividing resistor; 28. Detection power supply; 29. ​​Sound and light alarm. DETAILED DESCRIPTION

[0021] The specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. Example 1

[0022] like Figure 1 A ground plug for improving grounding effect shown in the figure comprises a conductive plug rod 1 and a wire 2 connected to the conductive plug rod 1. The lower part of the conductive plug rod 1 is a plug section 101 for inserting into the ground. An axially extending guide hole 3 is opened inside the conductive plug rod 1. The upper end of the guide hole 3 forms an inlet 4 on the top or side wall of the conductive plug rod 1. The lower end of the guide hole 3 extends downward to the plug section 101. A plurality of tributary holes 5 connected with the guide hole 3 are evenly distributed circumferentially on the side wall of the plug section 101 at the lower part of the conductive plug rod 1. The inlet 4 is connected with a container 6. The container 6 is used to hold water. A flow regulating valve 7 is arranged between the container 6 and the inlet 4 for regulating the flow. After being throttled by the flow regulating valve 7, the water in the container 6 flows downward along the guide hole 3 to the tributary hole 5, and finally flows out of the conductive plug rod 1, which is used to moisten the soil near and below the plug section 101, thereby improving the soil conductivity and improving the grounding effect of the ground plug.

[0023] In this embodiment, the container 6 is preferably made of insulating material, preferably a material with a certain degree of elasticity, such as a plastic bottle. The axial direction of the branch hole 5 is not particularly limited in this embodiment, and can be set horizontally along the radial direction of the conductive plug 1, or tilted upward or downward, or can be set along the tangent of the diversion hole. In order to minimize the entry of mud into the branch hole 5, the outer end of the branch hole 5 can be selected to tilt upward, but in actual application, even if mud enters the branch hole 5, it will not prevent water from flowing out of the branch hole 5. After pulling out the conductive plug 1, the user can increase the water pressure by squeezing the container 6, and use the water pressure to flush the branch hole 5 to keep the branch hole 5 clean.

[0024] In order to facilitate operation, the present embodiment preferably has a handle 8 vertically connected to the top of the conductive plug rod 1, and the handle 8 is covered with an insulating sleeve 9 to protect the user from electric shock. The conductive plug rod 1 is connected to the middle of the handle 8, so that the entire plug is inserted into a "T" shape structure, which is convenient for the user to apply pressure with both hands to insert the conductive plug rod 1 into the ground. The inlet 4 is located at the top of the conductive plug rod 1, and the handle 8 is provided with a through hole 10 connected to the inlet 4. The through hole 10 is coaxial with the guide hole 3. The top of the through hole 10 is connected to the flow regulating valve 7. The inlet end 701 of the top of the flow regulating valve 7 is connected to the container 6, and the outlet end 702 at the bottom is connected to the through hole 10.

[0025] In this embodiment, the container 6 is arranged above the handle 8, and the container 6 is in an inverted state with the mouth facing downward, which is conducive to fully utilizing the water in the container and facilitates the disassembly and assembly of the container 6 and the filling of water.

[0026] In order to ensure that the water in the container 6 can flow downward smoothly, the present embodiment further provides a one-way air valve 11 at the top of the container 6, and the one-way air valve 11 is connected from the outside to the inside of the container 6. The one-way air valve 11 can balance the air pressure inside the container 6.

[0027] In order to store the wire 2, the present embodiment also vertically connects a conductive assembly shaft 12 to the conductive plug rod 1. An axial insertion hole 13 is provided at one end of the assembly shaft 12 away from the conductive plug rod 1. A plug 14 matching with the insertion hole 13 is provided at one end of the wire 2. The plug 14 is rotatably plugged into the insertion hole 13 to achieve reliable electrical connection with the assembly shaft 12 and the conductive plug rod 1. An insulating winding wheel 15 is rotatably sleeved on the assembly shaft 12. An insulating locking knob 16 is threadedly connected to one end of the assembly shaft 12 away from the conductive plug rod 1. An internal threaded hole 17 matching with the assembly shaft 12 is provided on the locking knob 16. One end of the locking knob 16 abuts against the winding wheel 15 to adjust the rotation resistance of the winding wheel 15 and prevent the winding wheel 15 from separating from the assembly shaft 12. The outer edge of one end of the winding wheel 15 facing away from the conductive plug rod 1 is rotatably connected to a rotating handle 19, and the rotating handle 19 is connected to the winding wheel 15 through a screw 20, and the axial direction of the screw 20 is parallel to the axial direction of the assembly shaft 12. The user can rotate the winding wheel 15 by rotating the handle 19, thereby improving the convenience of operation.

[0028] Since one end of the wire 2 is inserted into the plug hole 13 at the center of the assembly shaft 12 and the plug 14 can rotate relative to the plug hole 13, when winding, the user can directly wind the wire 2 by rotating the winding wheel 15, and one end of the plug 14 can rotate with the winding wheel 15 without affecting the winding.

[0029] Of course, in practical applications, the winding wheel 15 is not necessary, and the user can directly connect one end of the wire 2 to the conductive plug rod 1, and directly wind it on the conductive plug rod 1 when storing it, and unwind it when using it to connect the equipment that needs to be grounded.

[0030] In order to reduce the difficulty of inserting the conductive rod 1 into the ground, the present embodiment further designs the lower end of the plug section 101 into a drill shape, and the user can rotate the conductive rod 1 through the handle 8 and use the spiral groove of the drill bit at the lower end of the plug section 101 to guide the conductive rod 1 into the ground.

[0031] Those skilled in the art should be able to understand that designing the lower end of the plug-in section 101 into a drill shape is not necessary but an option. In actual applications, the lower end of the plug-in section 101 can be designed into a conventional pointed shape.

[0032] The working process of this embodiment is as follows: Figure 1 As shown, the user first removes the container 6 from the flow regulating valve 7, then fills it with water, and then installs the container 6 on the flow regulating valve 7. To prevent the water in the container 6 from flowing out during installation, the conductive plug 1 can be inverted. When installing the container 6, the flow regulating valve 7 is closed. After installing the container 6, the user inserts the conductive plug 1 into the ground, and the insertion depth is based on the immersion of all the tributary holes 5 into the ground. Then the user can open the flow regulating valve 7 according to the weather conditions to adjust the flow rate of the water. The water in the container 6 will flow into the soil through the flow regulating valve 7, the diversion hole 3 and the tributary hole 5, making the soil moist and increasing the conductivity of the soil.

[0033] After the conductive plug 1 is plugged in, the user removes one end of the wire 2 from the reel 15 and pulls it to the equipment or parts that need to be grounded and electrically connects it. The plug 14 at the other end of the wire 2 is plugged into the plug hole 13 of the assembly shaft 12. Although the reel 15 can rotate and the wire 2 can be automatically unwound, in order to prevent the conductive plug 1 from falling over, when pulling the wire 2, it is best to have another operator to watch over the conductive plug 1 and assist in the unwinding of the wire 2. When the wire 2 is wound, it can be completed by one operator.

[0034] The technical solution adopted in this embodiment has a simple structure and is easy to operate. It can effectively increase the soil moisture near and below the conductive plug 1, increase the soil conductivity, and thus improve the grounding performance of the ground plug in the shallow ground. Example 2

[0035] The structure of this embodiment is substantially the same as that of the first embodiment, except that the assembly structure of the container 6 in this embodiment is different from that in the first embodiment.

[0036] like Figure 5As shown, in this embodiment, the inlet 4 is also located at the top of the conductive plug rod 1, the top of the conductive plug rod 1 is connected to the outlet end 702 at the lower end of the flow regulating valve 7, and the inlet end 701 at the top of the flow regulating valve 7 is connected to a handle 8, and the handle 8 is arranged perpendicular to the conductive plug rod 1. The handle 8 includes a three-way connecting seat 801 located in the middle and a left tube body 802 and a right tube body 803. A "T"-shaped flow channel 804 is arranged inside the three-way connecting seat 801. The lower end of the three-way connecting seat 801 is a lower joint 805 that is connected to the flow channel 804 and is used to connect to the inlet end 701 of the flow regulating valve 7. The two sides of the three-way connecting seat 801 are respectively a left joint 806 and a right joint 807 that are connected to the flow channel 804 and are used to connect to the container 6. The left tube body 802 is sleeved on the periphery of the left joint 806 and is fixedly connected to the three-way connecting seat 801. The right tube body 803 is sleeved on the periphery of the right joint 807 and is fixedly connected to the three-way connecting seat 801. The handle 8 is covered with an insulating sleeve 9 on the outside. The insulating sleeve 9 forms plug-in interfaces 808 for inserting the container 6 at the two free ends of the left tube body 802 and the right tube body 803.

[0037] There are two containers 6 in this embodiment, which are inserted into the left tube body 802 and the right tube body 803 respectively. The left joint 806 or the right joint 807 is tubular and has an internal thread on the inner circumferential wall. The open end of the container 6 is provided with an external thread head 601 threadedly connected to the left joint 806 or the right joint 807. The two containers 6 are threadedly connected to the left joint 806 and the right joint 807 respectively.

[0038] Similar to the first embodiment, a one-way air valve 11 is provided at one end of the container 6 away from the opening end in the present embodiment, and the one-way air valve 11 is connected in a direction from the outside of the container 6 to the inside.

[0039] Except for the above-mentioned distinguishing technical features, other structures of the ground plug described in this embodiment are the same as those in Embodiment 1.

[0040] When the present embodiment is in use, the two containers 6 are respectively connected to the left tube body 802 and the right tube body 803, which effectively protects the connection between the container 6 and the flow regulating valve 7 from being damaged by collision. The two containers 6 can also effectively ensure or expand the capacity to extend the time for the ground plug to continuously replenish water to the soil.

[0041] Although the technical solutions given in Examples 1 and 2 both set the inlet 4 at the top of the conductive plug rod 1, according to the technical solution described in Example 1, a person skilled in the art can conceive of setting the inlet 4 on the side wall of the conductive plug rod 1, and the connection between the inlet 4 and the flow regulating valve 7 can also be similar to the connection between the through hole 10 on the handle 8 and the flow regulating valve 7. Therefore, the technical solution of setting the inlet 4 on the conductive plug rod 1 is a technical solution that a person skilled in the art can determine through the description of Examples 1 and 2. Example 3

[0042] Based on the first or second embodiment, the present embodiment further improves the specific connection structure of the winding wheel 15, and accordingly the specific connection method of the conductor 2 is also changed.

[0043] like Figure 6 As shown, an insulating fixed block 21 is fixedly sleeved on the conductive plug rod 1, and a winding wheel 15 is slidably sleeved on the conductive plug rod 1 below the fixed block 21. The winding wheel 15 and the fixed block 21 are connected by a telescopic sleeve 22. The telescopic sleeve 22 is corrugated and can be axially elastically retracted. The side of the winding wheel 15 close to the bottom end of the conductive plug rod 1 can slide to the bottom end of the conductive plug rod 1. The conductive plug rod 1 above the fixed block 21 is also covered with an insulating sleeve 9. One end of the wire 2 is connected to the conductive plug rod 1 above the fixed block 21. The conductor of the wire 2 passes through the insulating sleeve 9, and the insulating layer of the wire 2 is sealed and connected to the insulating sleeve 9.

[0044] In this embodiment, the winding wheel 15 is sleeved on the conductive plug rod 1, so that the winding wheel 15 can slide up and down along the conductive plug rod 1, which can not only realize the winding of the wire 2, but also can use the telescopic sleeve 22 to protect and isolate the conductive plug rod 1 to prevent the user from touching the conductive plug rod 1 and getting an electric shock. The winding wheel 15 can also be used to shield the ground around the conductive plug rod 1, reduce the evaporation rate of soil moisture, maintain soil humidity, and improve the grounding effect of the ground plug.

[0045] like Figure 7 This is another specific connection structure between the winding wheel 15 and the conductive plug rod 1 provided in this embodiment.

[0046] like Figure 7 As shown, a conductive fixing ring 23 is fixedly sleeved on the conductive plug rod 1, and a winding wheel 15 is slidably sleeved on the conductive plug rod 1 below the fixing ring 23. The winding wheel 15 and the fixing ring 23 are connected by an insulating sliding sleeve 24. The sliding sleeve 24 is sleeved outside the fixing ring 23, and the top of the sliding sleeve 24 is connected to a limiting ring 25. The limiting ring 25 is opposite to the top surface of the fixing ring 23. The lower end of the sliding sleeve 24 is fixedly connected to the winding wheel 15, and the sliding sleeve 24 can slide up and down. When the limiting ring 25 abuts against the top surface of the fixing ring 23, the winding wheel 15 is retracted. The lower end of the reel 15 descends to be flush with or lower than the lower end of the conductive plug rod 1. The length of the conductive plug rod 1 above the fixing ring 23 is greater than the length of the plug-in section 101. The conductive plug rod 1 above the fixing ring 23 is also covered by the insulating sleeve 9. One end of the wire 2 is conductively connected to the fixing ring 23, and the other end extends downward along the sliding sleeve 24 to the reel 15 and passes through the through hole 26 on the reel 15 and out of the wheel surface of the reel 15, and is wound on the reel 15. The wire 2 located in the sliding sleeve 24 is spirally wound on the conductive plug rod 1.

[0047] use Figure 7 The winding wheel 15 of the technical solution shown can keep in contact with the ground under its own weight, and the winding wheel 15 shields the ground around the conductive plug 1, reduces the evaporation rate of soil moisture, maintains soil moisture, and improves the grounding effect of the ground plug. The conductor 2 is arranged inside the sliding sleeve 24, and the plug is neat as a whole.

[0048] like Figure 8 As shown, in this embodiment, a detection circuit is provided at one end of the wire 2 away from the conductive plug 1, which is used to detect whether the wire 2 is normally grounded and connected. The wire 2 includes a grounding wire 201 and a detection wire 202. The grounding wire 201 and the detection wire 202 are connected to the conductive plug 1 through the plug 14 at the same time. The conductive plug 1 connects the grounding wire 201 and the detection wire 202. The end of the grounding wire 201 away from the conductive plug 1 is connected to the equipment that needs to be grounded. The end of the detection wire 202 away from the conductive plug 1 is connected to a detection power supply 28 through a voltage-dividing resistor 27. The voltage-dividing resistor 27 and an audible and visual alarm 29 are connected in parallel to the positive electrode of the detection power supply 28. The negative electrode of the audible and visual alarm 29 is connected to the negative electrode of the detection power supply 28 through a transistor 18. The negative electrode of the voltage-dividing resistor 27 is connected to the collector of the transistor 18. The end of the grounding wire 201 connected to the equipment is also connected to the negative electrode of the detection power supply 28.

[0049] When the grounding wire 201 and the detection wire 202 of the wire 2 are both reliably electrically connected to the conductive plug rod 1 and the line is not damaged or broken, the negative electrode of the voltage-dividing resistor 27 is directly grounded through the wire 2. At this time, the voltage of the collector of the transistor 18 cannot trigger the transistor 18 to turn on, that is, the transistor 18 is in a disconnected state, and the sound and light alarm 29 does not work. When the plug 14 of the wire 2 does not form a reliable electrical connection with the conductive plug rod 1, the grounding wire 201 and the detection wire 202 are also disconnected from each other, and the voltage-dividing resistor 27 cannot be directly grounded through the wire 2. The potential of the negative electrode of the voltage-dividing resistor 27 increases, prompting the transistor 18 to turn on. After the transistor 18 is turned on, a loop is formed, and the sound and light alarm 29 connected in parallel with the voltage-dividing resistor 27 is also powered on and works, sounding an alarm, and reminding the user that the grounding of the grounding plug is abnormal. In actual applications, when the grounding wire 201 or the detection wire 202 is broken and causes an open circuit, the sound and light alarm 29 will also work to warn the user to check and repair the wire 2 and the connection between the wire 2 and the conductive plug 1, thereby greatly improving the safety of the user when using the ground plug for grounding.

[0050] The above embodiments are only illustrative of the principles and effects of the invention, as well as some embodiments of its application, and are not intended to limit the invention. It should be pointed out that a person skilled in the art can make several modifications and improvements without departing from the inventive concept of the invention, and all of these belong to the protection scope of the invention.

Claims

1. A ground plug for improving grounding effect, comprising a conductive plug rod (1) and a wire (2) connected to the conductive plug rod (1), wherein the lower part of the conductive plug rod (1) is a plug section (101) for inserting into the ground, characterized in that: The conductive plug (1) is provided with an axially extending flow guide hole (3) inside, the upper end of the flow guide hole (3) forms an inlet (4) on the top or side wall of the conductive plug (1), the lower end of the flow guide hole (3) extends downward to the plug section (101), a plurality of branch holes (5) connected to the flow guide hole (3) are evenly distributed circumferentially on the side wall of the plug section (101) at the lower part of the conductive plug (1), the inlet (4) is connected to a container (6), and a flow regulating valve (7) is provided between the container (6) and the inlet (4) for regulating the flow; The inlet (4) is located at the top of the conductive plug rod (1), and the top of the conductive plug rod (1) is connected to the outlet end (702) at the bottom of the flow control valve (7). The inlet end (701) at the top of the flow control valve (7) is connected to a handle (8), and the handle (8) is arranged perpendicular to the conductive plug rod (1). The handle (8) comprises a three-way connection seat (801) located in the middle and left and right pipe bodies (802, 803). A "T"-shaped flow channel (804) is arranged inside the three-way connection seat (801), and the lower end of the three-way connection seat (801) is connected to the flow channel (804) and is used to connect the inlet end (704) of the flow control valve (7). 1), a lower joint (805) of the three-way connection seat (801), a left joint (806) and a right joint (807) respectively connected to the flow channel (804) and used to connect the container (6), the left tube body (802) is sleeved on the outer periphery of the left joint (806) and is fixedly connected to the three-way connection seat (801), the right tube body (803) is sleeved on the outer periphery of the right joint (807) and is fixedly connected to the three-way connection seat (801), the handle (8) is covered with an insulating sleeve (9) on the outside, and the insulating sleeve (9) forms an insertion interface (808) for inserting the container (6) at the two free ends of the left and right tube bodies (802, 803).

2. The ground plug for improving grounding effect according to claim 1, characterized in that: The left joint (806) or the right joint (807) is tubular and has an internal thread on its inner circumferential wall, and the open end of the container (6) is provided with an external thread head (601) threadedly connected to the left joint (806) or the right joint (807).

3. The ground plug for improving grounding effect according to claim 1 or 2, characterized in that: A one-way air-permeable valve (11) is provided at the top end of the container (6) axially upward along the conductive plug rod (1), and the one-way air-permeable valve (11) is conductive from the outside of the container (6) to the inside.

4. The ground plug for improving grounding effect according to claim 1 or 2, characterized in that: The conductive plug rod (1) is vertically connected to a conductive assembly shaft (12); an end of the assembly shaft (12) away from the conductive plug rod (1) is axially provided with an insertion hole (13); one end of the wire (2) is provided with a plug (14) that matches the insertion hole (13); the plug (14) is rotatably inserted into the insertion hole (13); an insulating winding wheel (15) is rotatably sleeved on the assembly shaft (12); and an insulating locking knob (16) is threadedly connected to the end of the assembly shaft (12) away from the conductive plug rod (1). ), an internal threaded hole (17) cooperating with the assembly shaft (12) is formed on the locking knob (16), one end of the locking knob (16) abuts against the winding wheel (15) to adjust the rotation resistance of the winding wheel (15) and prevent the winding wheel (15) from separating from the assembly shaft (12); the outer edge of one end of the winding wheel (15) facing away from the conductive plug rod (1) is rotatably connected to a rotating handle (19), and the rotating handle (19) is connected to the winding wheel (15) by a screw (20), and the axial direction of the screw (20) is parallel to the axial direction of the assembly shaft (12).

5. The ground plug for improving grounding effect according to claim 1, characterized in that: An insulating fixed block (21) is fixedly sleeved on the conductive plug rod (1), and a reel (15) is slidably sleeved on the conductive plug rod (1) below the fixed block (21). The reel (15) and the fixed block (21) are connected via a telescopic sleeve (22). The telescopic sleeve (22) is corrugated and can be axially elastically retracted. A side of the reel (15) close to the bottom end of the conductive plug rod (1) can slide to the bottom end of the conductive plug rod (1). The conductive plug rod (1) above the fixed block (21) is also covered by an insulating sleeve (9). One end of the wire (2) is connected to the conductive plug rod (1) above the fixed block (21), and the conductor of the wire (2) passes through the insulating sleeve (9). The insulating layer of the wire (2) is sealed and connected to the insulating sleeve (9).

6. The ground plug for improving grounding effect according to claim 1, characterized in that: A conductive fixing ring (23) is fixedly sleeved on the conductive plug rod (1), and a winding wheel (15) is slidably sleeved on the conductive plug rod (1) below the fixing ring (23). The winding wheel (15) and the fixing ring (23) are connected via an insulating sliding sleeve (24). The sliding sleeve (24) is sleeved outside the fixing ring (23). The top end of the sliding sleeve (24) is connected to a limiting ring (25). The limiting ring (25) and the top surface of the fixing ring (23) are opposite. The lower end of the sliding sleeve (24) is fixedly connected to the winding wheel (15). The sliding sleeve (24) can slide up and down. When the limiting ring (25) abuts against the top surface of the fixing ring (23), the winding wheel (15) is wound. The lower end of the wheel (15) descends to be flush with or lower than the lower end of the conductive plug rod (1); the length of the conductive plug rod (1) above the fixed ring (23) is greater than the length of the plug-in section (101); the conductive plug rod (1) above the fixed ring (23) is also covered by the insulating sleeve (9); one end of the wire (2) is conductively connected to the fixed ring (23); the other end of the wire (2) extends downward along the sliding sleeve (24) to the winding wheel (15) and passes through the through hole (26) on the winding wheel (15) to pass out from the wheel surface of the winding wheel (15) and is wound on the winding wheel (15); the wire (2) located in the sliding sleeve (24) is spirally wound on the conductive plug rod (1).

7. The ground plug for improving grounding effect according to claim 1, characterized in that: The lower end of the plug-in section (101) is in the shape of a drill bit.

8. The ground plug for improving grounding effect according to claim 1, characterized in that: The conductor (2) comprises a grounding wire (201) and a detection wire (202). The grounding wire (201) and the detection wire (202) are simultaneously connected to the conductive plug rod (1) via the plug (14). The conductive plug rod (1) connects the grounding wire (201) and the detection wire (202). The end of the grounding wire (201) away from the conductive plug rod (1) is connected to a device. The end of the detection wire (202) away from the conductive plug rod (1) is connected to a detection power supply (28) via a voltage divider resistor (27). The voltage divider resistor (27) and an audible and visual alarm (29) are connected in parallel to the positive electrode of the detection power supply (28). The negative electrode of the audible and visual alarm (29) is connected to the negative electrode of the detection power supply (28) via a triode (18). The negative electrode of the voltage divider resistor (27) is connected to the collector of the triode (18). The end of the grounding wire (201) connected to the device is simultaneously connected to the negative electrode of the detection power supply (28).

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