CN110459885B

CN110459885B - Grounding wire with mechanical locking and grounding operation method

Info

Publication number: CN110459885B
Application number: CN201910839188.1A
Authority: CN
Inventors: 周智明; 高翔; 罗艾珂; 田旦瑜
Original assignee: Guangdong Power Grid Co Ltd; Dongguan Power Supply Bureau of Guangdong Power Grid Co Ltd
Current assignee: Guangdong Power Grid Co Ltd; Dongguan Power Supply Bureau of Guangdong Power Grid Co Ltd
Priority date: 2019-09-05
Filing date: 2019-09-05
Publication date: 2024-07-26
Anticipated expiration: 2039-09-05
Also published as: CN110459885A

Abstract

The invention discloses a grounding wire with a mechanical lock, which comprises a grounding end fixedly arranged on the ground and a connecting component used for connecting a cable with the grounding end, wherein the connecting component comprises a grounding wire head and a wire clamp end connected with the grounding wire head through the cable, a through hole is formed in the grounding wire head, the grounding wire head is sleeved on the grounding end through the through hole, the grounding operation method comprises the steps of installing the grounding end and the connecting component, then connecting the grounding wire head with a connecting stud, taking out a key column, enabling the taken-out key column to come in and go out of a second installation groove, rotating a fixing rod to complete the connection of the wire clamp end and the cable, completing grounding work, and the disassembly step is just opposite to the installation step, namely, the forced limitation of the step of installing the grounding wire can be realized when the grounding wire is used, and the grounding wire is of a pure mechanical structure, so that the grounding wire is used in a strong magnetic field environment, signals are easy to be interrupted, and the problem that the installation step cannot be limited is avoided.

Description

Grounding wire with mechanical locking and grounding operation method

Technical Field

The invention relates to the technical field of grounding wires, in particular to a grounding wire with a mechanical lock and a grounding operation method.

Background

The grounding wire is a wire directly connected with the earth, and can also be called a safety loop wire, when in danger, the grounding wire directly transfers high voltage to the earth, namely a life wire, and in a power system, the grounding wire is used for ensuring life safety of workers when voltage occurs unexpectedly on equipment and circuits which are powered off.

The grounding wire is correctly installed by connecting the grounding end and then connecting the conductor end, the grounding wire is detached by detaching the conductor end, and then the grounding end is detached, but in the actual installation and detachment process, workers often have the problem of violating the safety operation flow, and have great potential safety hazards, the connection state of two ends of the grounding wire is controlled by adopting a five-prevention lock mode, and the connection states of two ends are mutually fed back by utilizing electric signals during control.

Disclosure of Invention

The invention aims to provide a grounding wire with a mechanical lock and a grounding operation method, which are used for solving the problems that the cost is high, the grounding wire is used in places with strong electromagnetic fields, and signal interruption is easy to occur in the prior art by utilizing a five-prevention lock to control the installation and disassembly process of the grounding wire.

In order to achieve the above object, the embodiments of the present invention provide the following technical solutions:

The grounding wire with the mechanical locking comprises a grounding end fixedly arranged on the ground and a connecting assembly used for connecting a cable with the grounding end, wherein the connecting assembly comprises a grounding wire end and a wire clamp end connected with the grounding wire end through the cable, a through hole is formed in the grounding wire end, and the grounding wire end is sleeved on the grounding end through the through hole;

The grounding end comprises a connecting stud, a first mounting groove is formed in the position of the central axis of the connecting stud, a key column is arranged in the first mounting groove, a taking assembly for taking out the key column is further arranged in the first mounting groove, a fixing assembly for locking a grounding wire end is further arranged on one side of the connecting stud, the fixing assembly comprises a fixing groove, a T-shaped plate and a sliding groove formed in the side wall of the fixing groove, a sliding column is arranged on the T-shaped plate, the T-shaped plate is connected in the fixing groove in a sliding mode through the sliding column and the sliding groove in a jogging sliding mode, a movable plate is further connected to the bottom of the T-shaped plate in a rotating mode, and a return spring is arranged at the bottom of the movable plate.

According to the preferred scheme, the taking assembly comprises a bottom plate arranged at the bottom of the first mounting groove and a through groove penetrating through the first mounting groove and the fixing groove, an extrusion block with an arc-shaped end is arranged in the through groove and used for enabling the T-shaped plate to rotate after the fixing groove is inserted into the key post, a lifting groove communicated with the sliding groove is further formed in the side wall of the first mounting groove, and a lifting plate corresponding to the sliding post through the lifting groove is arranged on the bottom plate.

As a preferred embodiment of the invention, the return spring is located on the side of the sliding column facing away from the groove bottom of the fixed groove.

As a preferred embodiment of the invention, the distance from the through groove to the bottom of the first mounting groove is greater than the height of the key post.

As a preferable scheme of the invention, the wire clamp end comprises a hook, a fixing rod and a screw sleeve rotationally connected to the hook, a plurality of limit grooves are annularly arranged on the side wall of the screw sleeve, and a clutch component which corresponds to the limit grooves and is used for fixing the screw sleeve is arranged on the hook.

As a preferable scheme of the invention, the clutch assembly comprises a clamping plate which is connected through a tension spring and corresponds to the limiting groove, an inclined push plate is arranged on the clamping plate, a second mounting groove for mounting a key post is formed in the hook, and the second mounting groove is arranged corresponding to the inclined push plate.

As a preferable scheme of the invention, the fixing rod comprises a screw rod sleeved in the screw sleeve and a handheld rod arranged at the bottom of the screw rod, and a layer of insulating rubber is arranged on the handheld rod.

A grounding operation method with a mechanical lock comprises the following steps of:

Step S100, burying a grounding end at a position corresponding to a cable to be grounded, and connecting a grounding wire end and a wire clamp end by using the cable;

step S200, sleeving a grounding wire coil on a connecting stud in the electric connection end, and taking out a key post;

step S300, inserting the taken key post into a second mounting groove formed in the hook;

And step S400, placing the hook on a cable to be grounded, and rotating the fixing rod to fix the hook, so that all the installation is completed.

As a preferable mode of the present invention, according to the step S200, after the ground wire end is sleeved on the connection stud, a nut for fixing the ground wire end is screwed on the connection stud.

As a preferable mode of the present invention, the ground wire is detached in a reverse direction to the mounting step.

Embodiments of the present invention have the following advantages:

According to the invention, the fixing component is arranged on the grounding end, when the grounding wire end is installed, the key post can be taken out by matching with the taking component, so that the key post can be taken out only after the grounding wire end is connected with the connecting stud during installation, the key post is further inserted into the second installation groove to fix the wire clamp end on the cable, the operation of a worker according to the appointed step can be forced, the safety during the use is higher, the arranged wire clamp end and the grounding end are both of pure mechanical structures, and the problem that when the five-prevention lock is used in a strong environment under an electromagnetic field, signals are easily interrupted, and the limitation on the grounding wire installation step cannot be normally carried out can be solved.

Drawings

In order to more clearly illustrate the embodiments of the invention or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the invention, and that other drawings can be obtained from these drawings without inventive faculty for a person skilled in the art.

The structures, proportions, sizes, etc. shown in the present specification are shown only for the purposes of illustration and description, and are not intended to limit the scope of the invention, which is defined by the claims, so that any structural modifications, changes in proportions, or adjustments of sizes, which do not affect the efficacy or the achievement of the present invention, should fall within the ambit of the technical disclosure.

FIG. 1 is a schematic view of a grounding terminal according to the present invention;

FIG. 2 is a schematic view of the grounding end structure of the grounding wire head according to the present invention;

FIG. 3 is a top view of the grounding end of the present invention;

FIG. 4 is a schematic view of the structure of the present invention without a key post at the end of the cable clamp;

FIG. 5 is a schematic diagram of the structure of the key post installed at the end of the cable clamp according to the present invention;

FIG. 6 is a perspective view of a T-shaped plate of the present invention;

FIG. 7 is a schematic view of the structure of the base plate according to the present invention;

FIG. 8 is a perspective view of a ground wire header in accordance with the present invention;

Fig. 9 is a perspective view of a card in accordance with the present invention.

In the figure:

1-a ground terminal; 2-through holes; 3-grounding wire ends; 4-wire clamp ends;

101-connecting a stud; 102-a first mounting slot; 103-a key cylinder; 104-taking the component; 105-a fixed assembly; 106-a fixed groove; 107-T-shaped plate; 108-a sliding groove; 109-a sliding column; 110-a movable plate; 111-a return spring; 112-a bottom plate; 113-through grooves; 114-extruding a block; 115-lifting groove; 116-lifting plate;

401-hooking; 402-a screw sleeve; 403-fixing bars; 404-a limit groove; 405-a clutch assembly; 406-a clamping plate; 407-inclined push plate; 408-a second mounting slot; 409-screw; 410-a hand-held wand.

Detailed Description

In order to make the objects, features and advantages of the present invention more comprehensible, the technical solutions in the embodiments of the present invention are described in detail below with reference to the accompanying drawings, and it is apparent that the embodiments described below are only some embodiments of the present invention, but not all embodiments of the present invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

In the description of the present invention, it should be understood that the directions or positional relationships indicated by the terms "upper", "lower", "top", "bottom", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention. It is noted that when one component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components may also be present.

The technical scheme of the invention is further described below by the specific embodiments with reference to the accompanying drawings.

As shown in fig. 1,2, 3 and 8, the invention provides a grounding wire with mechanical locking and a grounding operation method, comprising a grounding end 1 fixedly installed on the ground and a connecting component for connecting a cable with the grounding end 1, wherein the connecting component comprises a grounding wire end 3 and a wire clamping end 4 connected with the grounding wire end 3 through the cable, the cable for connecting the grounding end 1 and the connecting component is made of a bare copper flexible wire with the thickness of more than 25mm, meets the safety standard, ensures sufficient safety in use, the grounding wire end 3 is provided with a through hole 2, the grounding wire end 3 is sleeved on the grounding end 1 through the through hole 2, a fixed base is further arranged on the grounding end 1, a plurality of grounding posts are arranged at the bottom of the base, and the base and the grounding posts are made of metal materials so as to ensure good conductivity when the grounding wire end is buried in the ground.

The grounding end 1 comprises a connecting stud 101, a first mounting groove 102 is formed in the position of the central axis of the connecting stud 101, a key post 103 is arranged in the first mounting groove 102, a taking component 104 for taking out the key post 103 is further arranged in the first mounting groove 102, the key post is made of metal, and a layer of insulating rubber layer is arranged on the surface of the key post, so that sufficient structural strength is ensured.

As shown in fig. 1, fig. 2, fig. 6 and fig. 8, a fixing component 105 for locking the grounding wire end 3 is further disposed on one side of the connection stud 101, the fixing component 105 includes a fixing groove 106, a T-shaped plate 107 and a sliding groove 108 formed on a side wall of the fixing groove 106, an end of one side of the T-shaped plate 107 away from the fixing groove 106 is in an arc structure, a sliding column 109 is disposed on the T-shaped plate 107, the T-shaped plate 107 is slidably connected in the fixing groove 106 through the engagement of the sliding column 109 and the sliding groove 108, the sliding column 109 is in a cylindrical structure, and the T-shaped plate 107 can slide in the sliding groove 108 and can rotate in the sliding groove 108.

The bottom of T shaped plate 107 still rotates and is connected with fly leaf 110, the bottom of fly leaf 110 is provided with return spring 111, return spring 111 is in the tank bottom side that slide column 109 kept away from fixed slot 106, promptly under normal state, the stress point of return spring 111 on T shaped plate 107 is in the tank bottom side that slide column 109 kept away from fixed slot 106, and then can make T shaped plate 107 regard slide column 109 as the rotation point, and make T shaped plate 107 one side skew towards the tank bottom of fixed slot 106, T shaped plate 107 at this moment can realize embedding completely in fixed slot 106 under the effect of return spring 111, can avoid the staff to detain T shaped plate 107 problem easily. The step of securing the wire is mandatory.

As shown in fig. 3 and 7, the picking assembly 104 includes a bottom plate 112 disposed at the bottom of the first mounting groove 102 and a through groove 113 penetrating the first mounting groove 102 and the fixing groove 106, an extrusion block 114 having an arc-shaped end and used for rotating the T-shaped plate 107 after the fixing groove 106 is inserted into the key post 103 is disposed in the through groove 113, an end of the extrusion head away from the T-shaped plate 107 has an arc-shaped structure for facilitating insertion and removal of the key post 103, a lifting groove 115 communicating with the sliding groove 108 is further disposed on a side wall of the first mounting groove 102, and a lifting plate 116 corresponding to the sliding post 109 through the lifting groove 115 is disposed on the bottom plate 112, when the grounding wire 3 is not mounted, the extrusion block 114 can be clamped in the fixing groove 106 by using a force of the T-shaped plate 107 deflected to one side, so as to avoid accidental falling out of the key post 103, when the sliding post 109 is lifted, the lifting plate 116 can be lifted up in the lifting groove 115, and further the lifting plate 116 can be lifted up by the lifting plate 116, and the bottom plate 112 can be driven by the movement of the lifting plate 116 to move up the bottom plate 103, and the key post 103 can be controlled to move upward.

It should be added that the distance from the through groove 113 to the bottom of the first mounting groove 102 is greater than the height of the key post 103, when in use, the key post 103 can be completely embedded into the first mounting groove 102, and then the fixing of the key post 103 can be realized through the extrusion block 114 under the action of no external force, so that the key post is more practical.

When the key post 103 is taken out, the end of the wire clamp can be installed, during installation, a worker can be forced to install the grounding wire first, when the key post 103 is taken out, the grounding wire head 3 needs to be sleeved on the connecting stud 101, when the grounding wire head 101 passes over the T-shaped plate 107, the T-shaped plate 107 can be rotated by taking the sliding post 109 as a rotation center due to the shape of the T-shaped plate 107, when the grounding wire head 3 passes over the T-shaped plate 107, the T-shaped plate 107 is in a rotating state, so that the T-shaped plate 107 can be pushed out by a certain height under the action of the return spring 111, meanwhile, the T-shaped plate 107 can also drive the bottom plate 112 to move, the bottom plate 112 can drive the key post 103 to move upwards by a certain distance, and the extrusion block 114 arranged can be pushed open after the key post 103 moves, so that the T-shaped plate 107 can be conveniently pulled up by a user until the T-shaped plate 107 can be taken out by taking the T-shaped plate 107, and the problem that the T-shaped plate 107 is easy to be embedded in a fixed slot 106 again can be avoided, and the fault tolerance ratio is higher when the key post is operated.

When the grounding wire end 3 is detached from the connecting stud 101, namely, the key post 103 needs to be inserted into the first mounting groove 102, when the key post 103 is inserted into the first mounting groove 102, the extrusion block 114 can be pushed up by the key post 103 to extrude the T-shaped plate 107, and then the T-shaped plate 107 can protrude out of the fixing groove 106 at the moment, so that a worker can conveniently buckle the T-shaped plate 107, rotate the T-shaped plate 107 by 90 degrees, then lift the grounding wire end 3 to a position close to the T-shaped plate 107, after the T-shaped plate 107 is loosened, the T-shaped plate 107 can be automatically reset under the action of the return spring 111, and then the grounding wire end 3 can be enabled to cross the T-shaped plate 107, so that the normal detachment of the grounding wire end 3 can be realized.

As shown in fig. 4, 5 and 9, the wire clamp end 4 includes a hook 401, a fixing rod 403 and a threaded sleeve 402 rotatably connected to the hook 401, a plurality of limit grooves 404 are annularly arranged on a side wall of the threaded sleeve 402, the fixing rod 403 includes a screw 409 sleeved in the threaded sleeve 402 and a handheld rod 410 disposed at the bottom of the screw 409, a layer of insulating rubber is disposed on the handheld rod 410, a fixing plate corresponding to the hook 401 is further disposed on the screw 409, that is, after the screw 409 is rotated to enable the fixing plate to move to a specified position, the wire clamp end 4 can be fixed on a cable in cooperation with the hook 401.

The clutch assembly 405 corresponding to the limit groove 404 and used for fixing the threaded sleeve 402 is arranged on the hook 401, the clutch assembly 405 comprises a clamping plate 406 which is connected through a tension spring and corresponds to the limit groove 404, an inclined push plate 407 is arranged on the clamping plate 406, a second mounting groove 408 used for mounting the key post 103 is formed in the hook 401, and the second mounting groove 408 is arranged corresponding to the inclined push plate 407.

When the wire clamp end 4 is installed, the key post 103 is inserted into the second installation groove 408, the key post 103 can push the inclined push plate 407, so that the inclined push plate 407 moves to one side, the clamping plate 406 can be pushed into the limit groove 404, the fixation between the hook 401 and the screw sleeve 402 is realized, at the moment, the fixing rod 403 can be normally rotated to fix the wire clamp end 4 and the cable, and when the key post 103 is not inserted, the clamping plate 406 is separated from the limit groove 404 under the action of the tension spring, so that the rotating fixing rod 403 drives the screw sleeve 403 to rotate together, and the wire clamp end 4 cannot be fixed on the cable through rotation.

The installation step of the grounding wire comprises the following steps:

The ground wire is removed in a reverse manner to the mounting step.

Namely, the overall installation and disassembly principle is that the grounding wire head 3 is installed first, the key post 103 can be taken out only by installing the grounding wire head 3, and the wire clamp end 4 and the cable can be fixed together only when the key post 103 is inserted into the second fixing groove 408 on the hook 401, and the installation step and the disassembly step are exactly opposite, so that the forced limitation of the installation and disassembly steps can be realized, and the problem that a worker does not operate according to the regulations, so that the worker has a large potential safety hazard can be avoided.

According to the step S200, after the grounding wire end is sleeved on the connecting stud, the connecting stud is screwed with a nut for adding the grounding wire end, the set nut has a certain height, when the nut rotates on the connecting stud 101, the T-shaped plate 107 is continuously pressed down, and then the extrusion of the grounding wire end 3 is realized through the T-shaped plate 107, so that the connection stability between the grounding wire end 3 and the connecting stud 101 can be effectively increased, and the problem of poor contact can be avoided.

The above embodiments are only for illustrating the technical solution of the present invention, and not for limiting the same; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. The ground wire with the mechanical locking function is characterized by comprising a ground end (1) fixedly installed on the ground and a connecting component used for connecting a cable with the ground end (1), wherein the connecting component comprises a ground wire head (3) and a wire clamp end (4) connected with the ground wire head (3) through the cable, a through hole (2) is formed in the ground wire head (3), and the ground wire head (3) is sleeved on the ground end (1) through the through hole (2);

The grounding end (1) comprises a connecting stud (101), and the grounding wire end (3) is sleeved on the connecting stud (101) through a through hole (2); a first mounting groove (102) is formed in the central axis position of the connecting stud (101), a key column (103) is arranged in the first mounting groove (102), a taking assembly (104) for taking out the key column (103) is further arranged in the first mounting groove (102), a fixing assembly (105) for locking a grounding wire head (3) is further arranged on one side of the connecting stud (101), the fixing assembly (105) comprises a fixing groove (106), a T-shaped plate (107) and a sliding groove (108) formed in the side wall of the fixing groove (106), the T-shaped plate (107) is rotationally connected with the sliding column (109), the sliding column (109) is rotationally connected with the sliding groove (108), a movable plate (110) is rotationally connected to the bottom of the T-shaped plate (107), and a return spring (111) is arranged at the bottom of the movable plate (110);

The picking assembly (104) comprises a bottom plate (112) arranged at the bottom of the first mounting groove (102) and a through groove (113) penetrating the first mounting groove (102) and the fixing groove (106), wherein an extrusion block (114) with an arc-shaped end is arranged in the through groove (113) and used for enabling the T-shaped plate (107) to rotate after the fixing groove (106) is inserted into the key column (103), a lifting groove (115) communicated with the sliding groove (108) is further formed in the side wall of the first mounting groove (102), and a lifting plate (116) corresponding to the sliding column (109) through the lifting groove (115) is arranged on the bottom plate (112);

The return spring (111) is arranged on the side of the sliding column (109) away from the bottom of the fixed groove (106).

2. A ground wire with mechanical locking according to claim 1, characterized in that the distance from the through slot (113) to the bottom of the first mounting slot (102) is larger than the height of the key cylinder (103).

3. The ground wire with mechanical locking according to claim 1, characterized in that the wire clamping end (4) comprises a hook (401), a fixing rod (403) and a threaded sleeve (402) rotatably connected to the hook (401), a plurality of limit grooves (404) are annularly arranged on the side wall of the threaded sleeve (402), and a clutch assembly (405) corresponding to the limit grooves (404) and used for fixing the threaded sleeve (402) is arranged on the hook (401).

4. A ground wire with mechanical locking according to claim 3, characterized in that the clutch assembly (405) comprises a clamping plate (406) which is connected through a tension spring and corresponds to the limiting groove (404), an inclined push plate (407) is arranged on the clamping plate (406), a second mounting groove (408) for mounting the key post (103) is arranged on the hook (401), and the second mounting groove (408) corresponds to the inclined push plate (407).

5. A ground wire with mechanical locking as set forth in claim 3 wherein: the fixing rod (403) comprises a screw rod (409) sleeved in the screw sleeve (402) and a handheld rod (410) arranged at the bottom of the screw rod (409), and a layer of insulating rubber is arranged on the handheld rod (410).

6. A method of grounding operation of a mechanically locked grounding wire according to any one of claims 1 to 5, wherein the step of installing the grounding wire comprises:

7. The method according to claim 6, wherein according to the step S200, after the ground wire is sleeved on the connection stud, a nut for fastening the ground wire is screwed on the connection stud.

8. The method of grounding operation of a mechanically locked grounding wire of claim 6, wherein said grounding wire is removed in a reverse direction from said mounting step.