CN113764913A

CN113764913A - Grounding rod

Info

Publication number: CN113764913A
Application number: CN202111323414.4A
Authority: CN
Inventors: 黄刚东; 蒋秀
Original assignee: Jiangmen Power Supply Bureau of Guangdong Power Grid Co Ltd
Current assignee: Jiangmen Power Supply Bureau of Guangdong Power Grid Co Ltd
Priority date: 2021-11-10
Filing date: 2021-11-10
Publication date: 2021-12-07
Anticipated expiration: 2041-11-10
Also published as: CN113764913B

Abstract

The application relates to the technical field of grounding wires, in particular to a grounding rod, which comprises a connector lug, an insulating rod body, a movable plate, a lifting cylinder, a rotating shaft and a rotating handle; the connector lug is fixedly arranged at the top end of the insulating rod body; the rotary handle is rotatably connected with the bottom end of the insulating rod body; the lifting cylinder is arranged in the insulating rod body in a sliding manner along the axial direction of the insulating rod body; the rotating shaft is rotatably arranged in the insulating rod body; the bottom end of the rotating shaft is connected with the rotating handle, and the top end of the rotating shaft is provided with a thread head; the screw thread head is positioned inside the lifting cylinder and is in threaded fit with the inner wall of the lifting cylinder; the connector lug is in a shape of a letter 21274, and the movable plate is positioned between two transverse plates of the connector lug; the bottom of the movable plate is connected with a fixed rod, and the bottom end of the fixed rod penetrates through the insulating rod body to be connected with the lifting cylinder. The technical problem that operation is inconvenient in the prior art is effectively solved.

Description

Grounding rod

Technical Field

The application relates to the technical field of grounding wires, in particular to a grounding rod.

Background

The ground rod is a device commonly used in the daily operation and maintenance of the power grid, and the ground rod is needed to be grounded at two ends of a working place after the power grid is powered off, so that the safety of personnel at the working place is ensured. The earth bar that uses at present mainly is the earth connection head free activity, personnel operate the earth bar that insulating rod portion knob goes on fixing, it is more convenient only to use on horizontal wire, but when meetting perpendicular wire and mechanism, it is very inconvenient to use, especially the earth connection head receives the gravity influence of earth connection very easily when low-voltage switch has a power failure ground connection, the unable perfect and switch line connection of earth connection head, the earth connection head that needs to be held up with the hand to the installation earth connection many times is connected, have very big potential safety hazard like this.

Disclosure of Invention

In view of this, an object of the present application is to provide a ground rod, which effectively solves the technical problem of inconvenient operation in the prior art.

In order to achieve the purpose, the application provides the following technical scheme:

a ground rod comprises a connector lug, an insulating rod body, a movable plate, a lifting cylinder, a rotating shaft and a rotating handle;

the connector lug is fixedly arranged at the top end of the insulating rod body;

the rotary handle is rotatably connected with the bottom end of the insulating rod body;

the lifting cylinder is arranged in the insulating rod body in a sliding manner along the axial direction of the insulating rod body;

the rotating shaft is rotatably arranged in the insulating rod body;

the bottom end of the rotating shaft is connected with the rotating handle, and the top end of the rotating shaft is provided with a threaded head;

the thread head is positioned inside the lifting cylinder and is in threaded fit with the inner wall of the lifting cylinder;

the connector lug is in a shape of a letter 21274, and the movable plate is positioned between two transverse plates of the connector lug;

the bottom of the movable plate is connected with a fixed rod, and the bottom end of the fixed rod penetrates through the insulating rod body to be connected with the lifting cylinder.

Preferably, in the above ground rod, guide rails are disposed on both sides of the lifting cylinder, and a guide groove corresponding to the guide rail is disposed on an inner wall of the insulating rod body.

Preferably, in the above ground rod, the bottom of the lifting cylinder is provided with a separation preventing ring for preventing the rotating shaft from separating.

Preferably, in the above ground rod, a limiting ring is disposed on the periphery of the rotating shaft;

and a limiting surrounding ring in limiting fit with the limiting ring is arranged in the insulating rod body.

Preferably, in the above ground rod, the cross section of the limiting ring is i-shaped.

Preferably, in the above ground rod, two axial thrust bearings are arranged inside the position-limiting surrounding ring;

and the two axial thrust bearings are respectively positioned above and below the limiting ring.

Preferably, in the above ground rod, an insulating rubber sleeve is sleeved on both the periphery of the insulating rod body and the periphery of the rotating handle.

Preferably, in the above-mentioned one ground rod, a braking element is further included;

the braking element is movably arranged inside the rotating handle;

the braking element is provided with at least two braking columns;

the bottom of the insulating rod body is provided with a plurality of braking grooves which are uniformly distributed in the circumferential direction and are matched with the braking columns.

Preferably, in the above-mentioned ground rod, a snap element is further included for locking the braking element in the rotation handle and pushing the braking element to move toward the braking groove.

Preferably, in the above ground rod, the fastening element includes a fastening button, a first spring, a second spring, a positioning element, a first hook and a second hook;

the positioning piece is L-shaped and is fixed in the rotating handle;

the buckle button is arranged in a through hole in the outer wall of the rotating handle and is connected with the positioning piece through the first spring;

the first clamping hook and the second clamping hook are both arranged inside the rotating handle, and the first clamping hook is in hooking fit with the second clamping hook;

the first clamping hook is connected with the buckle button through a first connecting rod, and the middle part of the first connecting rod is hinged to the inner wall of the rotating handle;

the second clamping hook is connected with the braking element through a second connecting rod and a connecting block in sequence;

two ends of the second spring are respectively connected with the connecting block and the positioning piece;

the length direction of the second connecting rod and the length direction of the second spring are parallel to the plugging direction of the brake column plugged in the brake groove;

the length direction of the first spring is perpendicular to the length direction of the second spring.

Compared with the prior art, the beneficial effects of this application are:

the application provides a ground rod, when the operation, can drive the rotation axis rotation through rotating rotatory handle, and then drive the screw thread head and rotate, because the inner wall screw-thread fit of screw thread head and a lift section of thick bamboo, the screw thread head is in a lift section of thick bamboo internal rotation, can produce the effort that promotes a lift section of thick bamboo and reciprocate again, the upper and lower activity of a lift section of thick bamboo drives the fly leaf through the dead lever and reciprocates, compare in ordinary ground rod, the ground head can be controlled when this application is connected with perpendicular wire, not only be favorable to greatly reduced the capacity of being connected of ground head and perpendicular wire, and also can normally use and fastening in-process on the horizontal wire need not borrow power to the wire, safety and reliability more, thereby make things convenient for the ground rod to carry out the ground connection operation, the inconvenient problem of the technique of existence operation among the prior art has been solved effectively.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a ground rod according to an embodiment of the present disclosure;

fig. 2 is an enlarged view of a connection between a lifting cylinder and a rotating shaft of a ground rod provided in an embodiment of the present application;

fig. 3 is an enlarged view of a connection between a limiting ring and a limiting surrounding ring of a ground rod according to an embodiment of the present disclosure;

fig. 4 is an enlarged view of the connection between the brake post and the brake groove of the ground rod according to the embodiment of the present disclosure;

fig. 5 is a distribution diagram of brake grooves of a ground rod according to an embodiment of the present disclosure;

fig. 6 is a schematic structural diagram of a braking element of a ground rod according to an embodiment of the present disclosure;

fig. 7 is a schematic structural diagram of a fastening element of a ground rod according to an embodiment of the present disclosure.

In the figure:

100. a connector lug; 110. a ground line; 200. a movable plate; 210. fixing the rod; 300. an insulating shaft body; 310. a position-limiting surrounding ring; 320. an axial thrust bearing; 330. a brake groove; 400. a lifting cylinder; 410. a guide rail; 420. the anti-drop ring; 500. a rotating shaft; 510. a screw head; 520. a limiting ring; 600. rotating the handle; 700. insulating rubber sleeves; 800. a braking element; 810. a brake post; 820. connecting blocks; 830. a limiting clamping groove; 900. a snap element; 910. a snap button; 920. a first spring; 930. a second spring; 940. a positioning member; 950. a first hook; 960. a second hook; 970. a first connecting rod; 980. a second connecting rod; 981. a bearing block; 990. prevent mistake and touch the visor.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

In the description of the embodiments of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the embodiments of the present application and simplifying the description, but do not indicate or imply that the referred devices or elements must have specific orientations, be configured in specific orientations, and operate, and thus, should not be construed as limiting the embodiments of the present application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the embodiments of the present application, it should be noted that the terms "mounted," "connected," and "connected" are used broadly and are defined as, for example, a fixed connection, an exchangeable connection, an integrated connection, a mechanical connection, an electrical connection, a direct connection, an indirect connection through an intermediate medium, and a communication between two elements, unless otherwise explicitly stated or limited. Specific meanings of the above terms in the embodiments of the present application can be understood in specific cases by those of ordinary skill in the art.

Referring to fig. 1 to 7, an embodiment of the present application provides a ground rod, which includes a connector lug 100, an insulation rod 300, a movable plate 200, a lifting cylinder 400, a rotating shaft 500, and a rotating handle 600; the connector lug 100 is fixedly arranged at the top end of the insulating rod body 300; the rotating handle 600 is rotatably connected with the bottom end of the insulation shaft 300; the elevating cylinder 400 is slidably provided inside the insulation shaft 300 along the axial direction of the insulation shaft 300; the rotation shaft 500 is rotatably provided inside the insulation shaft 300; the bottom end of the rotating shaft 500 is connected with a rotating handle 600, and the top end of the rotating shaft 500 is provided with a screw head 510; the screw head 510 is positioned inside the lifting cylinder 400, and the screw head 510 is in threaded fit with the inner wall of the lifting cylinder 400; the connector lug 100 is shaped like a letter 21274, and the movable plate 200 is positioned between two transverse plates of the connector lug 100; the bottom of the movable plate 200 is connected with a fixing rod 210, and the bottom end of the fixing rod 210 penetrates through the insulating rod 300 and is connected with the lifting cylinder 400.

More specifically, the bottom of the connector lug 100 is connected with the insulation bar 300 through a connecting rod, and the grounding wire 110 is detachably mounted on the side wall of the connector lug 100; the rotation shaft 500 is made of an insulating material, which makes the entire ground rod more safe; the fixing rod 210 sequentially penetrates through a transverse plate below the connector lug 100 and the top of the insulating rod body 300 to be fixedly connected with the lifting cylinder 400; preferably, when the top of the lifting cylinder 400 moves to contact and abut against the top of the insulation rod 300, the top of the movable plate 200 also contacts and abuts against a horizontal plate above the connector lug 100; when the top of the elevator cylinder 400 moves into contact with the screw head 510, the bottom of the movable plate 200 also contacts against the cross plate below the connector head 100.

This application is when the operation, can drive rotation axis 500 through rotating rotatory handle 600 and rotate, and then drive the stub 510 and rotate, because the inner wall screw-thread fit of stub 510 and a section of thick bamboo 400 goes up and down, stub 510 is in a section of thick bamboo 400 internal rotation, can produce the effort that promotes a section of thick bamboo 400 and reciprocate again, the upper and lower activity of a section of thick bamboo 400 drives fly leaf 200 through dead lever 210 and reciprocates, compare in ordinary earth bar, this application can control the earth bar when being connected with perpendicular wire, not only be favorable to greatly reduced the capacity of being connected of earth bar and perpendicular wire, and also can normally use and fastening process on horizontal wire do not need to borrow power to the wire, safety and reliability more, thereby make things convenient for the earth bar to carry out the ground connection operation, the inconvenient technical problem of operation among the prior art has been solved effectively.

Further, in this embodiment, the two sides of the lifting cylinder 400 are provided with guide rails 410, and the inner wall of the insulation shaft 300 is provided with guide grooves corresponding to the guide rails 410. The direction of the up-and-down movement of the lifting cylinder 400 can be limited by the arrangement of the guide rails 410 and the guide grooves, and the left-and-right shaking condition is avoided when the lifting cylinder 400 moves up and down, so that the movable plate 200 can be stably regulated and controlled, and the lifting cylinder is more convenient for workers to use.

Further, in the present embodiment, the bottom of the elevating cylinder 400 is provided with a slip-off preventing ring 420 for preventing the rotation shaft 500 from slipping off. The inner diameter of the anti-slip ring 420 is greater than the outer diameter of the rotation shaft 500 and less than the outer diameter of the screw head 510; the anti-slip ring 420 is arranged to prevent the screw head 510 from being disengaged from the lifting cylinder 400 while the rotation of the rotating shaft 500 is not affected, so that the whole ground rod can be used continuously.

Further, in the present embodiment, the outer circumference of the rotating shaft 500 is provided with a spacing ring 520; the inside of the insulation shaft 300 is provided with a limit surrounding ring 310 which is in limit fit with the limit ring 520, and the limit surrounding ring 310 is fixedly arranged on the inner wall of the insulation shaft 300. Through the mutual spacing cooperation between spacing collar 520 and spacing surrounding ring 310, can guarantee that rotation axis 500 normally rotates in insulation shaft body 300, can carry out effective spacing to the left and right sides of spacing collar 520 and rotation axis 500 again to guarantee that rotation axis 500 can rotate at insulation shaft body 300 steadily.

Further, in this embodiment, the cross section of the limiting ring 520 is in an i shape after being turned by 90 °, and the limiting ring 520 and the limiting surrounding ring 310 are matched and combined, so that the limiting ring 520 can be effectively limited in the vertical direction and the horizontal direction, the rotation of the rotating shaft 500 is further prevented from being loosened, and the lifting cylinder 400 and the movable plate 200 can be accurately controlled to move up and down.

Further, in the present embodiment, two axial thrust bearings 320 are disposed inside the position-limiting surrounding ring 310; two axial thrust bearings 320 are located above and below the stop collar 520, respectively. Setting up through two axial thrust bearing 320 on the one hand can be effectively spacing to the upper and lower both sides of spacing collar 520 to guarantee that rotation axis 500 can stably rotate, on the other hand because axial thrust bearing 320's surface is equipped with a plurality of sliding balls, frictional force when can reduce spacing collar 520 and rotation axis 500 effectively through a plurality of sliding balls makes rotatory handle 600 pivoted more smooth and easy, makes the staff use more convenient.

Further, in the present embodiment, an insulating rubber sleeve 700 is sleeved on both the outer circumference of the insulating shaft 300 and the outer circumference of the rotating handle 600. Because when rotating rotatory handle 600, the staff need hold rotatory handle 600 in one hand, and insulating pole body 300 is held to the other hand, can carry out effectual insulation protection to the staff through the setting of insulating gum cover 700, is favorable to preventing the accident of the risk of electrocuting when the staff operation.

Further, in the present embodiment, a braking element 800 is further included; the braking element 800 is movably disposed inside the rotating handle 600; the braking element 800 is provided with at least two braking columns 810; the bottom of the insulation shaft 300 is provided with a plurality of braking grooves 330 which are evenly distributed in the circumference and matched with the braking columns 810. Through the insertion and matching of the braking column 810 of the braking element 800 and the braking groove 330 of the insulating rod body 300, the rotating handle 600 can be positioned, so that the rotating handle 600 and the rotating shaft 500 can not rotate at fixed positions, and the effect of fixing the height positions of the lifting cylinder 400 and the movable plate 200 is achieved, thereby facilitating the grounding operation of a worker more accurately.

More specifically, referring to fig. 4 to 6, the two sides of the braking element 800 are provided with the limiting clamping grooves 830, the two sides of the inside of the rotating handle 600 are provided with the limiting clamping blocks matched with the limiting clamping grooves 830, the moving direction of the braking element 800 in the insulating rod body 300 can be well limited by the arrangement of the limiting clamping grooves 830 and the limiting clamping blocks, the braking element 800 preferably includes two braking columns 810, and the braking grooves 330 preferably include a plurality of braking columns in different directions, so that when the braking element 800 moves to different directions along with the rotating handle 600, the braking grooves 330 are respectively inserted and matched with the braking columns 810, thereby achieving the effect of fixing the rotating handle 600 and the rotating shaft 500 in a desired direction, that is, fixing the lifting cylinder 400 and the movable plate 200 at a desired height.

Further, in this embodiment, a snap element 900 is further included for locking the braking element 800 in the rotation handle 600 and pushing the braking element 800 to move toward the braking groove 330. Through the arrangement of the fastening element 900, the braking element 800 can be locked in the rotating handle 600 when the height position of the movable plate 200 needs to be adjusted, so that the braking column 810 cannot be in inserted fit with the braking groove 330 to interfere with the rotation of the rotating handle 600, and when the movable plate 200 is adjusted to be located at a proper position by rotating the rotating handle 600, the fastening element 900 is utilized to generate certain thrust to the braking element 800, so that a worker can better insert and fit the braking column 810 with the braking groove 330 to fix the rotating handle 600 to be unable to rotate, and the grounding requirement of the height position of the movable plate 200 fixed by the worker is met.

Further, in the present embodiment, referring to fig. 7, the fastening element 900 includes a fastening button 910, a first spring 920, a second spring 930, a positioning member 940, a first hook 950 and a second hook 960; the positioning piece 940 is L-shaped, and the positioning piece 940 is fixed in the rotating handle 600; the snap button 910 is installed in a through hole on the outer wall of the rotating handle 600 and connected with the positioning member 940 through a first spring 920; the first hook 950 and the second hook 960 are both disposed inside the rotating handle 600, and the first hook 950 and the second hook 960 are hooked; the first hook 950 is connected to the snap button 910 through a first connection rod 970, and the middle portion of the first connection rod 970 is hinged to the inner wall of the rotating handle 600; the second hook 960 is connected to the braking member 800 sequentially through the second connection rod 980 and the connection block 820; both ends of the second spring 930 are respectively connected with the connecting block 820 and the positioning member 940; the length direction of the second connecting rod 980 and the length direction of the second spring 930 are both parallel to the plugging direction of the brake post 810 into the brake slot 330; the length direction of the first spring 920 is perpendicular to the length direction of the second spring 930.

When the movable plate 200 is adjusted to be located at a proper position by rotating the rotary handle 600, the first connecting rod 970 swings under the acting force of the snap button 910 and enables the first hook 950 and the second hook 960 to be hooked away by pressing the snap button 910 inwards, and due to the fact that the second hook 960 is free from the binding force of the first hook 950 on the second hook, the connecting rod 820 and the second connecting rod 980 are pushed to move towards the direction of the braking groove 330 under the elastic action of the second spring 930, so that the braking column 810 moves to be in inserted fit with the braking groove 330, the purpose of fixing the positions of the rotary handle 600 and the movable plate 200 is achieved, and the snap button 910 is popped out to the outside under the elastic action of the first spring 920 so as to be pressed next time; when the position of the movable plate 200 needs to be adjusted again, the locking button 910 is pressed inward again, and the braking column 810 is pushed inward, so that the first hook 950 and the second hook 960 are restored to be hooked, and the effect of locking the braking element 800 in the rotating handle 600 without affecting the normal rotation of the rotating handle 600 is achieved.

More specifically, a detachable or rotatable mistaken touch preventing protective cover 990 is disposed on the outer surface of the snap button 910, so that a worker can be prevented from mistakenly touching the snap button 910 when the snap button is idle through the mistaken touch preventing protective cover 990, and the normal grounding operation of the worker by using a grounding rod is affected; the locating piece 940 is connected with a bearing block 981, the second connecting rod 980 is slidably arranged in the bearing block 981 in a penetrating manner, and the second connecting rod 980 can be effectively supported by the bearing block 981 and can also be guided and limited in the moving direction of the second connecting rod 980.

The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A ground rod is characterized by comprising a connector lug, an insulating rod body, a movable plate, a lifting cylinder, a rotating shaft and a rotating handle;

the rotating shaft is rotatably arranged in the insulating rod body;

2. The grounding rod as claimed in claim 1, wherein guide rails are provided on both sides of the elevating cylinder, and the inner wall of the insulating rod body is provided with guide grooves corresponding to the guide rails.

3. The ground rod as claimed in claim 1, wherein the bottom of the elevating cylinder is provided with a slip-off preventing ring for preventing the rotation shaft from slipping off.

4. The ground rod as claimed in claim 1, wherein the periphery of the rotating shaft is provided with a spacing ring;

5. The earth rod as claimed in claim 4, wherein the cross-section of the spacing ring is I-shaped.

6. The ground rod as claimed in claim 5, wherein the position-limiting surrounding ring is provided with two axial thrust bearings inside;

7. The earth rod as claimed in claim 1, wherein an insulating rubber sleeve is sleeved on the outer circumference of the insulating rod body and the outer circumference of the rotating handle.

8. A ground rod according to any one of claims 1 to 7, further comprising a braking element;

the braking element is movably arranged inside the rotating handle;

the braking element is provided with at least two braking columns;

9. The ground rod of claim 8, further comprising a snap element for locking said braking element within said rotatable knob and urging said braking element toward a braking slot.

10. The ground rod of claim 9, wherein the snap element comprises a snap button, a first spring, a second spring, a positioning member, a first snap hook and a second snap hook;

the positioning piece is L-shaped and is fixed in the rotating handle;