CN113300127A

CN113300127A - Grounding tool

Info

Publication number: CN113300127A
Application number: CN202110585191.2A
Authority: CN
Inventors: 徐龙彬; 李俊达; 刘颢桦; 邓剑飞; 郑永恒; 马帅飞; 李汉巧; 彭亮良; 孔卫文; 朱文滔; 陈铭乐; 黄世环; 梁瑞煜; 何智祥; 冼伟镜; 董奇光; 林婷
Original assignee: Guangdong Power Grid Co Ltd; Foshan Power Supply Bureau of Guangdong Power Grid Corp
Current assignee: Guangdong Power Grid Co Ltd; Foshan Power Supply Bureau of Guangdong Power Grid Corp
Priority date: 2021-05-27
Filing date: 2021-05-27
Publication date: 2021-08-24
Anticipated expiration: 2041-05-27
Also published as: CN113300127B

Abstract

The application relates to the technical field of grounding tools for power distribution networks, in particular to a grounding tool, which comprises two clamp bodies, a spring, a first handle, a second handle and a connecting rod; the two clamp bodies are rotationally connected through a pivoting part; the pin joint part divides each clamp body into a clamp head part and a clamp body part; an adjustable clamping plate is rotatably arranged on the inner wall of one of the head parts of the pliers; the adjustable splint comprises a first surface body and a second surface body, and a clamping gap is formed between the first surface body and the inner wall of the other forceps head part; the inner walls of the two tong head parts are respectively provided with a clamping groove, and a clamping position for clamping the nut is formed between the two clamping grooves and the second surface body; two ends of the spring are respectively connected with the two caliper body parts; the first handle is connected with any one of the clamp body parts, and the second handle is movably connected with the other clamp body part; the two ends of the connecting rod are respectively hinged with the first handle and the second handle. The technical problem that the existing wiring tool is not suitable for connecting various low-voltage devices with the hanging ground wire is effectively solved.

Description

Grounding tool

Technical Field

The application relates to the technical field of grounding tools for power distribution networks, in particular to a grounding tool.

Background

With the rapid development of socio-economy, the number of engineering construction projects is increasing day by day. In the field construction process, the hanging of the ground wire is an essential measure for ensuring the construction safety. The type of current low pressure earthing device is diversified, and low pressure earthing device mainly includes: transformer low pressure side, low pressure master switch, GGD low-voltage cabinet, GCK low-voltage cabinet, the low pressure switch of being qualified for the next round of competitions, small-size low-voltage switch box and junction box etc. the job site investigation result shows, traditional earth connection only is applicable to traditional low-voltage cabinet ground connection to the copper bar that non-all directions were arranged is all conveniently installed, and inconvenient the installing will utilize the nut to install on the copper bar sometimes, but the shape structure of keeping silent of traditional earth connection does not have good centre gripping steadiness and sufficient conductive contact surface to the nut again. The structure of the novel low-voltage switch cabinet is greatly different from that of the traditional low-voltage switch cabinet, copper bars of the novel low-voltage switch cabinet are more closely arranged, and the traditional grounding wire is difficult to be hooked; meanwhile, the arrangement conditions of the outgoing line side of the low-voltage outgoing switch and the copper bars of the low-voltage junction box also need a more convenient and suitable grounding wire. In order to meet the grounding requirement of diversity of low-voltage equipment, a grounding tool with better applicability is required.

Disclosure of Invention

In view of this, an object of the present application is to provide a grounding tool, which effectively solves the technical problem that the conventional wiring tool is not suitable for connecting various low-voltage devices to ground wires.

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

a grounding tool comprises two clamp bodies, a spring, a first handle, a second handle and a connecting rod;

the two clamp bodies are rotationally connected through the pivoting part;

the pin joint part divides each clamp body into a clamp head part and a clamp body part;

an adjustable clamping plate is rotatably arranged on the inner wall of one of the head parts of the pliers;

the adjustable clamping plate comprises a first surface body and a second surface body, and a clamping gap is formed between the first surface body and the inner wall of the other clamp head part;

the inner walls of the two tong head parts are respectively provided with a clamping groove, and a clamping position for clamping a nut is formed between the two clamping grooves and the second surface body;

two ends of the spring are respectively connected with the two caliper body parts;

the first handle is connected with any one of the forceps body parts, and the second handle is movably connected with the other forceps body part;

and two ends of the connecting rod are respectively hinged with the first handle and the second handle.

Preferably, in the above-described ground engaging tool, the second handle includes a movable rod, a slip ring, and a handle body;

the first end of the movable rod is connected with the corresponding forceps body part, the second end of the movable rod movably penetrates through the sliding ring, and the sliding ring is connected with the handle part body;

and two ends of the connecting rod are respectively hinged with the first handle and the sliding ring.

Preferably, in the above grounding tool, an outer wall of the movable rod is provided with an external thread;

the inner wall of the slip ring is provided with an internal thread matched with the external thread;

the movable rod is in threaded connection with the slip ring.

Preferably, in the above-described ground engaging tool, the slip ring is snap-connected to the shank body.

Preferably, in the above-mentioned ground engaging tool, there are two connecting rods, and the two connecting rods are arranged in parallel.

Preferably, in the above grounding tool, the outer wall of the first handle and the outer wall of the second handle are both provided with an insulating layer.

Preferably, in the above grounding tool, the outer wall of the first handle and the outer wall of the second handle are provided with anti-slip lines or frosted layers.

Preferably, in the above-described grounding tool, a vibration sensor or a displacement sensor is provided on the first handle, the second handle, or any one of the clamp bodies.

Preferably, in the above grounding tool, an alarm device is further included;

the vibration sensor or the displacement sensor is connected with the alarm device and used for sending a signal to the alarm device to start the alarm device to carry out alarm reminding processing.

Preferably, in the above grounding tool, the alarm device includes a timing module, and the timing module is configured to record a clamping time of the two clamp bodies to the grounding wire.

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

when the grounding tool is used, under the elastic action of the spring and the fixed limiting action of the connecting rod, a stable clamping gap can be formed between the first surface body of the adjustable clamping plate and the other head part of the pliers, the connecting rod can be driven to rotate correspondingly through the movable adjustment of the second handle and the body part of the pliers, and meanwhile, the two pliers rotate around the pivoting part, so that the distance between the two head parts of the pliers is increased (or reduced), the distance between the adjustable clamping plate and the inner wall of the other head part of the pliers is increased (or reduced), the effect of adjusting the clamping width of the grounding tool is achieved, and the grounding requirements for clamping copper bars of different sizes are met; clamping grooves are formed in the inner walls of the two clamp head portions, and clamping positions for clamping the nut are formed between the two clamping grooves and the second surface body together, so that the grounding requirement for clamping the nut is met; switching through adjustable splint carries out the centre gripping to nut or equidimension copper bar not, can satisfy multiple demand that supports to press equipment to articulate the ground wire, has solved current wiring instrument effectively and has not been applicable to multiple low-voltage equipment and has connect the technical problem who hangs the ground wire.

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 introduced below, it is obvious that the drawings in the following description are only embodiments of the present application, 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 grounding tool according to an embodiment of the present disclosure;

fig. 2 is a schematic view illustrating an installation of a vibration sensor or a displacement sensor of a grounding tool according to an embodiment of the present disclosure;

fig. 3 is a schematic disassembled view of a slip ring and a shank body of a grounding tool provided by an embodiment of the present application;

fig. 4 is a schematic view illustrating a grounding tool clamping a copper bar according to an embodiment of the present disclosure;

fig. 5 is a schematic view of a grounding tool holding a nut according to an embodiment of the present application;

fig. 6 is a schematic connection diagram of an alarm device of a grounding tool according to an embodiment of the present disclosure.

In the figure:

the clamp comprises a clamp body 1, a clamp head 11, a clamp body 12, a pin joint 13, a clamping groove 14, an adjustable clamp plate 2, a first surface body 21, a second surface body 22, a spring 3, a first handle 4, a second handle 5, a movable rod 51, a sliding ring 52, a handle body 53, a connecting rod 6, an alarm device 7, a vibration sensor (displacement sensor) 71, a timing module 72, an alarm module 73, a pressure sensor 74 and a main control module 75.

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.

With the rapid development of socio-economy, the number of engineering construction projects is increasing day by day. In the field construction process, the hanging of the ground wire is an essential measure for ensuring the construction safety. The type of current low pressure earthing device is diversified, and low pressure earthing device mainly includes: transformer low pressure side, low pressure master switch, GGD low-voltage cabinet, GCK low-voltage cabinet, the low pressure switch of being qualified for the next round of competitions, small-size low-voltage switch box and junction box etc. the job site investigation result shows, traditional earth connection only is applicable to traditional low-voltage cabinet ground connection to the copper bar that non-all directions were arranged is all conveniently installed, and inconvenient the installing will utilize the nut to install on the copper bar sometimes, but the shape structure of keeping silent of traditional earth connection does not have good centre gripping steadiness and sufficient conductive contact surface to the nut again. The structure of the novel low-voltage switch cabinet is greatly different from that of the traditional low-voltage switch cabinet, copper bars of the novel low-voltage switch cabinet are more closely arranged, and the traditional grounding wire is difficult to be hooked; meanwhile, the arrangement conditions of the outgoing line side of the low-voltage outgoing switch and the copper bars of the low-voltage junction box also need a more convenient and suitable grounding wire. In order to meet the grounding requirement of diversity of low-voltage equipment, a grounding tool with better applicability is required. The embodiment provides a grounding tool, and the technical problem that the existing wiring tool is not suitable for various low-voltage equipment to be connected with a hanging ground wire is effectively solved.

Referring to fig. 1 to 6, an embodiment of the present application provides a grounding tool, which includes two clamp bodies 1, a spring 3, a first handle 4, a second handle 5, and a connecting rod 6; the two clamp bodies 1 are rotationally connected through a pivoting part 13; the pivoting part 13 divides each clamp body 1 into a clamp head part 11 and a clamp body part 12; an adjustable clamping plate 2 is rotatably arranged on the inner wall of one of the head parts 11; the adjustable splint 2 comprises a first surface body 21 and a second surface body 22, and a clamping gap is formed between the first surface body 21 and the inner wall of the other forceps head part 11; the inner walls of the two tong head parts 11 are provided with clamping grooves 14, and clamping positions for clamping the nuts are formed between the two clamping grooves 14 and the second surface body 22; two ends of the spring 3 are respectively connected with the two clamp body parts 12; the first handle 4 is connected with any one of the clamp body parts 12, and the second handle 5 is movably connected with the other clamp body part 12; two ends of the connecting rod 6 are respectively hinged with the first handle 4 and the second handle 5.

More specifically, the adjustable clamping plate 2 comprises a folded plate and a connecting part, the connecting part is pivoted with the head part 11, the folded plate is arranged on one side of the connecting part close to the other head part 11, the folded plate comprises a first surface body 21 and a second surface body 22 which are connected at an angle, and the adjustable clamping plate 2 can be rotated to a certain angle, so that the first surface body 21 is parallel to the inner wall of the other head part 11; the clamping groove 14 of the head part 11 where the adjustable clamping plate 2 is located is provided with two groove walls, the two groove walls and the second surface body 22 can form a first groove position matched with three surfaces of the hexagonal nut, the clamping groove 14 of the other head part 11 is provided with three groove walls, the three groove walls form a second groove position matched with the three surfaces of the hexagonal nut, and the first groove position and the second groove position together form a clamping position matched with the hexagonal nut; the first handle 4 can be detachably connected with the clamp body part 12, so that a worker can conveniently separate the first handle 4 from the clamp body part 12; the two clamp bodies 1 form a cross structure, wherein the head part 11 and the body part 12 of the same clamp body 1 are located on the same side.

When the adjustable copper bar grounding tool is used, under the elastic action of the spring 3 and the fixed limiting action of the connecting rod 6, a stable clamping gap can be formed between the first surface body 21 of the adjustable clamping plate 2 and the other head portion 11, the connecting rod 6 can be driven to rotate correspondingly through the movable adjustment of the second handle 5 and the body portion 12, and meanwhile, the two clamp bodies 1 also rotate around the pivoting portion 13, so that the distance between the two head portions 11 is increased (or reduced), the distance between the inner walls of the adjustable clamping plate 2 and the other head portion 11 is increased (or reduced), the effect of adjusting the clamping width of the grounding tool is achieved, and the grounding requirements for clamping copper bars of different sizes are met; the inner walls of the two head portions 11 are provided with clamping grooves 14, and clamping positions for clamping the nut are formed between the two clamping grooves 14 and the second surface body 22, so that the grounding requirement for clamping the nut is met; through adjustable splint 2 switching carry out the centre gripping to nut or equidimension copper bar not, can satisfy multiple demand that supports to press equipment to articulate the ground wire, solved current wiring instrument effectively and not be applicable to multiple low-voltage equipment and connect the technical problem who hangs the ground wire.

Further, in the present embodiment, the second handle 5 includes a movable rod 51, a slide ring 52, and a handle body 53; the first end of the movable rod 51 is connected with the corresponding forceps body part 12, the second end of the movable rod 51 is movably arranged in the sliding ring 52 in a penetrating way, and the sliding ring 52 is connected with the handle part body 53; the two ends of the connecting rod 6 are respectively hinged with the first handle 4 and the sliding ring 52. The connecting rod 6 is driven to rotate correspondingly by moving the operating slip ring 52 on the movable rod 51, so that the opening and closing of the jaw of the grounding tool are realized, the purpose of adjusting the size of the jaw (clamping width) is achieved, and the grounding tool can be suitable for clamping copper bars with different thicknesses.

More specifically, the inside of the handle body 53 is hollow, the second end of the movable rod 51 extends to the inside of the handle body 53, and the movement of the sliding ring 52 on the movable rod 51 is equivalent to the movement of the movable rod 51 entering and exiting from the inside of the handle body 53, so that the sliding ring 52 can move in a direction close to or far from the clamp body 1, and the connecting rod 6 is driven to rotate, thereby achieving the purpose of adjusting the size of the jaw; the movable rod 51 can be detachably connected with the clamp body part 12, so that a worker can conveniently separate the clamp body 1 from the whole second handle 5.

Further, in the present embodiment, the outer wall of the movable rod 51 is provided with an external thread; the inner wall of the slip ring 52 is provided with an internal thread matched with the external thread; the movable rod 51 is screwed to the slide ring 52. Through the setting of external screw thread and internal thread, not only can realize that the sliding ring 52 moves about along the movable rod 51, but also can fix the position of sliding ring 52 on movable rod 51 for connecting rod 6 keeps the fixed position and no longer rotates, just keeps keeping the same size of keeping silent, so that the copper bar or the nut of centre gripping low pressure earthing device articulate the ground wire better.

Further, in the present embodiment, referring to fig. 3, the sliding ring 52 is connected with the handle body 53 in a snap-fit manner. The both sides of sliding ring 52 all are equipped with the joint pole, be equipped with the joint groove corresponding with the joint pole on the stalk portion body 53, the setting in joint pole and joint groove makes sliding ring 52 can follow stalk portion body 53 and rotate together, also when sliding ring 52 need move about on movable rod 51, can reach the purpose that rotates sliding ring 52 through stalk portion body 53, it is rotatory to compare in that the staff directly grips sliding ring 52, stalk portion body 53 is located the end of ground connection instrument, can more make things convenient for the staff to grip, make the staff operation more convenient.

Further, in the present embodiment, there are two connecting rods 6, and the two connecting rods 6 are arranged in parallel. Through two parallel connecting rods 6, not only can the connection stability between connecting rod 6 and sliding ring 52 be guaranteed for connecting rod 6 can better follow the removal of sliding ring 52 and swing, but also can act as the protection support piece between first handle 4 and the second handle 5, avoid effectively that staff's maloperation or outside extrusion lead to the impaired condition of ground connection instrument to take place.

More specifically, the connecting rods 6 are hinged to the sliding ring 52 through rotating rods, and in order to avoid the connecting rods 6 from rotating along with the sliding ring 52, a circumferential sliding groove matched with the rotating rods can be arranged on the periphery of the sliding ring 52, when the sliding ring 52 rotates, the rotating rods of the connecting rods 6 can move in the circumferential sliding groove, and the connecting rods 6 swing due to the position change of the sliding ring 52 on the movable rod 51.

Further, in this embodiment, the outer wall of the first handle 4 and the outer wall of the second handle 5 are both provided with an insulating layer. Can realize carrying out insulation treatment to first handle 4 and second handle 5 through the setting of insulating layer, grip the electric shock risk that first handle 4 and second handle 5 exist when avoiding the staff dismouting effectively.

Further, in this embodiment, the outer wall of the first handle 4 and the outer wall of the second handle 5 are provided with anti-skid grains or frosted layers. Through the setting of anti-skidding line or dull polish layer, can increase frictional force effectively, make things convenient for the staff to grip first handle 4 and second handle 5 better, make things convenient for the staff dismouting, it is long when reducing the dismouting.

Further, in the present embodiment, the vibration sensor 71 or the displacement sensor 71 is provided on the first handle 4, the second handle 5, or any one of the clamp bodies 1. Whether the whole wiring tool is severely vibrated or not can be identified through the vibration sensor 71, whether the whole wiring tool is displaced or not can be identified through the displacement sensor 71, correct installation and disassembly of the grounding wire is guaranteed for safety production, if the grounding wire vibrates or deviates from the actual position of the grounding wire, an alarm can be given at an operation site and a mobile phone terminal, the vibration sensor 71 or the displacement sensor 71 can not only avoid the situation that the grounding wire is loosened during operation, but also can detect whether the wiring tool is stolen or not, so that a worker can timely deal with the occurrence of theft prevention, and the loss of power equipment is favorably reduced.

Further, in the present embodiment, please refer to fig. 6, further comprising an alarm device 7; the vibration sensor 71 or the displacement sensor 71 is connected with the alarm device 7 and used for sending a signal to the alarm device 7 to start the alarm device 7 to carry out alarm reminding processing. The alarm device 7 can be arranged in a control room, so that a worker can be reminded to check monitoring or arrive at the site in time conveniently to prevent the occurrence of theft; the alarm device 7 can also be arranged on the site of the grounding tool, and a thief or a person who accidentally touches the grounding tool can be warned to leave the grounding tool through the alarm device 7, so that the occurrence of stealing or electric shock is prevented.

More specifically, the alarm device 7 includes a main control module 75 and an alarm module 73, wherein the main control module 75 is configured to receive a signal output by the vibration sensor 71 or the displacement sensor 71, and accordingly start the alarm module 73 to perform a warning action such as sounding or flashing; through the cooperation of wiring instrument and alarm device 7 for this embodiment is applicable to and carries out low pressure ground connection to 0.4kV low voltage equipment, and the specially adapted low voltage distribution box, low pressure outgoing line switch, the compact low pressure master switch of electrical apparatus overall arrangement connection, need utilize coupling nut to install the occasion of earth connection.

Further, in this embodiment, please refer to fig. 6, the alarm device 7 further includes a timing module 72, and the timing module 72 is configured to record a clamping time of the two clamp bodies 1 to the ground line. The timing module 72 can be used for timing the access time of the grounding wire according to the power failure time and plays a role in reminding, and after the grounding wire is connected, a worker can set a specific time length, and when the time is up, the worker is reminded to prevent the occurrence of safety accidents caused by the fact that the grounding wire is not disconnected.

More specifically, a pressure sensor 74 may be installed on an inner wall of the head portion 11 or the adjustable clamp plate 2, the pressure sensor 74 may be connected to the main control module 75, when the head portion 11 clamps a copper bar or a nut, the pressure sensor 74 may send a signal to the main control module 75, the main control module 75 starts the timing module 72 to start timing, and the start time point of the clamping operation may be accurately recorded by the pressure sensor 74.

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 grounding tool is characterized by comprising two clamp bodies, a spring, a first handle, a second handle and a connecting rod;

the two clamp bodies are rotationally connected through the pivoting part;

2. The grounding tool of claim 1, wherein the second handle includes a movable rod, a slip ring, and a handle body;

3. The grounding tool of claim 2, wherein the outer wall of the movable rod is externally threaded;

the movable rod is in threaded connection with the slip ring.

4. The grounding tool of claim 3, wherein the slip ring is snap-fit connected with the handle body.

5. The grounding tool of claim 1, wherein there are two of the connecting rods, the two connecting rods being arranged in parallel.

6. The grounding tool of claim 1, wherein the outer wall of the first handle and the outer wall of the second handle are each provided with an insulating layer.

7. The grounding tool of claim 1, wherein the outer wall of the first handle and the outer wall of the second handle are provided with anti-slip threads or a frosted layer.

8. The grounding tool of claim 7, wherein a vibration sensor or a displacement sensor is provided on the first handle, the second handle, or any one of the clamp bodies.

9. The grounding tool of claim 8, further comprising an alarm device;

10. The grounding tool of claim 9, wherein the alarm device includes a timing module for recording the clamping time of the two clamp bodies to the ground wire.