Resistance grounding system with protective structure

Abstract

The application discloses a resistance grounding system with a protection structure applied to the field of emergency protection circuit devices, and relates to the technical field of grounding modules. When the ground resistance of the area where the grounding module and the shell are located is at a high level, the overvoltage current cannot smoothly pass through the grounding module and be guided to the ground, meanwhile, a large amount of heat is generated by the grounding module and is conducted to the ground soil and the area where the shell is located, the heat-melting glue between the sealing cover and the counterweight ring is softened, the heat-melting glue is disabled, the counterweight ring is separated from the sealing cover, and the elastic capsule is deformed, part of which extends into the flow outlet and is torn, meanwhile, the sodium chloride solution loaded in the elastic capsule flows out, the soil between the grounding module and the shell is modified, the moisture content of the soil is increased, the resistance of the soil is reduced, the overvoltage current of the electric appliance is more easily guided to the ground, the overvoltage burning of the electric appliance is avoided, and personnel casualty is avoided.

Description

TECHNICAL FIELD

[0001] The application relates to the field of emergency protection circuit devices, in particular to a resistance grounding system with a protection structure. BACKGROUND

[0002] Resistance grounding is the resistance encountered by the current flowing from the grounding device into the ground and then flowing to another grounding body or spreading to a distant place. The resistance grounding value reflects the good degree of contact between the electrical device and the ground and reflects the scale of the grounding net.

[0003] The introduction of grounding technology is initially a protective measure taken to prevent power or electronic equipment from being struck by lightning, and the purpose is to introduce the lightning current generated by lightning into the ground through the lightning rod, thereby playing a role in protecting the building. At the same time, grounding is also an effective means to protect personal safety. When the phase line (such as poor insulation of the wire, aging of the line, etc.) and the device shell are in contact due to some reason, the shell of the device will generate a dangerous voltage, and the current generated thereby will flow to the ground through the protective ground wire, thereby playing a role in protecting personal safety.

[0004] The influencing factors of the grounding end resistance are relatively complex. The soil humidity, hardness and compactness of the grounding end will affect the grounding end resistance. Once the resistance of the grounding end is too high, the current cannot safely flow to the ground through the grounding end, which may easily cause the overvoltage burnout of the electric appliance, and even cause personnel casualties. SUMMARY

[0005] The application aims to provide protection for the resistance grounding system. Compared with the prior art, the application provides a resistance grounding system with a protection structure. The grounding module is electrically connected with an electric appliance group. The grounding module includes a grounding module and a shell which are matched in size. The shell is sleeved on the outside of the grounding module, and the grounding module and the shell are coaxial. The shell includes a shell main body. A plurality of drainage openings are opened in the inner side of the shell main body, and the plurality of drainage openings penetrate the shell main body. A sealing cover matched with the shell main body is placed at the opening of the shell main body. A counterweight ring is fixedly connected to the lower end of the sealing cover. The sealing cover and the counterweight ring are fixedly connected through hot melt glue. A trigger capsule is placed in the shell main body. The trigger capsule includes an elastic capsule. The elastic capsule is filled with sodium chloride solution. A plurality of prefabricated grooves matched with the drainage openings are opened in the side of the elastic capsule close to the grounding module.

[0006] The overvoltage current of the electric appliance is more easily guided into the ground, and the overvoltage burnout of the electric appliance is less likely to occur, and personnel casualties are less likely to occur.

[0007] Optionally, the sodium chloride solution is mixed with a fluorescent pigment, and when the trigger capsule is broken, the sodium chloride and the fluorescent solution flow into the soil, and under the high temperature generated by the grounding module, transpiration occurs, and the sodium chloride solution carries the fluorescent pigment to the surface of the soil, so that maintenance personnel can discover and manage in a timely manner.

[0008] Optionally, a monitoring device is erected in the area where the grounding module is located, and the monitoring device is electrically connected with a control terminal, so as to detect the area where the grounding module is located, discover the traces of the fluorescent pigment in a timely manner, and facilitate timely maintenance and management.

[0009] Optionally, a plurality of inflatable balls are put into the sodium chloride solution, the plurality of inflatable balls each include a shell, and the plurality of shells are each filled with air and suspended in the sodium chloride solution, so that when the weight ring exerts pressure on the trigger capsule, the plurality of inflatable balls are also subjected to pressure, and once the plurality of inflatable balls are broken under the pressure, on the one hand, the impact caused by the breaking will cause the cracks of the inflatable balls to tear quickly, and on the other hand, when the air in the inflatable balls rushes out, the soil wetted by the sodium chloride is loosened, so that the sodium chloride solution is more easily diffused in the soil, the soil resistance in the area where the grounding module and the shell are located is rapidly reduced, and the overvoltage current is guided and unloaded.

[0010] Optionally, a plurality of thorn needles are fixedly connected to the outside of the shell, and the length of the thorn needle is three times the thickness of the shell, so that when the plurality of inflatable balls contact due to the pressure, the thorn needles directly pierce the shell, ensuring the breaking of the shell.

[0011] Optionally, a plurality of elastic fibers are fixedly connected to the outer wall of the shell, the plurality of elastic fibers each have a three-dimensional spiral shape, and adjacent two elastic fibers are intertwined to form a three-dimensional spatial structure, so that the plurality of elastic fibers can effectively protect the shell, and the inflatable ball is not easy to break due to the thorn needle when the inflatable ball itself collides in irregular motion.

[0012] Optionally, one end of the elastic fiber close to the shell extends into the shell and is interlaced with each other to form a plurality of net-like structures in the shell, so that the shell is not easy to produce a large amount of debris when it is broken, and subsequent recycling and reuse are facilitated.

[0013] Optionally, an installation groove is excavated in the upper end of the shell main body, a notched groove matching the installation groove is excavated in the side wall of the sealing cover, and the cross-sectional area of the notched groove is smaller than that of the installation groove, so as to facilitate the opening of the sealing cover by the worker.

[0014] Optionally, the mounting groove is fixedly connected with a fixed tube, the fixed tube is inserted with a movable column, the inner wall of the movable column is fixedly connected with a compression spring, the inner wall of the fixed tube is excavated with a pair of limiting rings, the outer wall of the movable column is fixedly connected with a limiting sliding block, and the mounting groove is misaligned with the notch groove in the process of installing the sealing cover. When the movable column is installed, the outer shell and the sealing cover are not directly contacted and are not easy to pinch the user. Then, the sealing cover is installed by rotating the sealing cover to align the mounting groove and the notch groove.

[0015] Optionally, the outer wall of the compression spring is in close contact with the inner wall of the movable column, so that the compression spring is not easy to deform in a non-working direction after being stressed, and the compression spring is not easy to fail prematurely.

[0016] Compared with the prior art, the application has the following advantages:

[0017] In the application, when the ground resistance of the area where the grounding module and the outer shell are located is at a high level, the overvoltage current cannot smoothly pass through the grounding module to the ground, and at the same time, the grounding module generates a large amount of heat and conducts to the ground soil and the area where the outer shell is located, causing the hot melt glue between the sealing cover and the counterweight ring to soften. The adhesive force provided by the hot melt glue cannot support the weight of the counterweight ring, and the counterweight ring will fall off the sealing cover and press the trigger capsule, causing the elastic capsule to deform. Due to the excavation of the relief port, the elastic capsule will extend into the relief port during deformation. The area controlling the deformation of the elastic capsule will tear at the prefabricated groove, and the sodium chloride solution loaded in the elastic capsule will flow out, modifying the soil between the grounding module and the outer shell, increasing the moisture content of the soil, and reducing the resistance of the soil. The overvoltage current of the electrical appliance is more likely to be guided to the ground, and the electrical appliance is less likely to be burned out by overvoltage, and personnel casualties are less likely to occur.

[0018] At the same time, the inflating ball is added to the sodium chloride solution. During the process of the trigger capsule being pressed and broken, the inflating ball will also be pressed and broken. On the one hand, it can accelerate the growth of the crack of the trigger capsule and speed up the overflow speed of the sodium chloride solution. On the other hand, the overflowed air can loosen the soil that has been wetted, so that the sodium chloride solution can more easily spread in the soil, quickly reduce the soil resistance of the area where the grounding module and the outer shell are located, and facilitate the guidance and unloading of the overvoltage current. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 FIG. 1 is a structural diagram of a resistance grounding system with a protection structure according to the application;

[0020] Figure 2 FIG. 2 is a structural diagram of a resistance grounding end with a protection structure according to the application;

[0021] Figure 3Figure 6 is a side sectional view of the protection structure of the resistance grounding system of the present application;

[0022] Figure 4 Figure 5 is a structural schematic diagram of the installation of the protection structure of the resistance grounding system of the present application; Figure 3 Figure 4 is a structural schematic diagram of the structure at A in Figure 3;

[0023] Figure 5 Figure 3 is an exploded view of the protection structure of the resistance grounding system of the present application;

[0024] Figure 6 Figure 2 is a side sectional view of the protection structure of the resistance grounding system of the present application after triggering;

[0025] Figure 7 Figure 1 is a side sectional view of the protection structure of the resistance grounding system of the present application when buried in the ground;

[0026] Figure 8 Figure 8 is a structural schematic diagram of the shell structure of the protection structure system of the present application;

[0027] Figure 9 Figure 7 is a structural schematic diagram of the triggering capsule of the present application;

[0028] Figure 10 Figure 6 is a side sectional view of the inflation balloon of the present application.

[0029] Figure 6 is a side sectional view of the inflation balloon of the present application.

[0030] 1 grounding module, 2 shell, 201 shell body, 202 drainage port, 203 installation slot, 3 sealing cover, 4 counterweight ring, 5 triggering capsule, 501 elastic capsule, 502 prefabricated slot, 6 inflation balloon, 601 balloon shell, 602 thorn needle, 603 elastic fiber, 7 fixed tube, 8 movable column, 9 connecting table, 10 limiting ring, 11 compression spring, 12 monitoring device, 13 control terminal. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of protection of the present application.

[0032] Embodiment 1:

[0033] The present application discloses a resistance grounding system with a protection structure, please refer to Figures 1-3 and Figures 8-10The utility model relates to a grounding module, the grounding module is electrically connected with the electric appliance group, the grounding module includes the grounding module 1 and the shell 2 of mutually matched size, the shell 2 is set on the outside of grounding module 1, and the grounding module 1 is coaxial with the shell 2, wherein the grounding module 1 is buried with the shell 2 in the ground, the shell 2 includes shell main body 201, the inside of shell main body 201 is excavated with multiple drainage ports 202, multiple drainage ports 202 all penetrate shell main body 201, the opening of shell main body 201 is placed with the sealing cover 3 that is matched with itself, the lower end of sealing cover 3 is fixedly connected with the counterweight ring 4, sealing cover 3 and counterweight ring 4 are fixedly connected through hot melt adhesive, especially, the softening temperature of fixed hot melt adhesive is 65 DEG C, the inside of shell main body 201 is placed with trigger capsule 5, trigger capsule 5 includes elastic capsule 501, the inside of elastic capsule 501 is filled with sodium chloride solution, the side of elastic capsule 501 close to grounding module 1 is excavated with multiple positions and the prefabricated groove 502 that matches with drainage port 202.

[0034] Especially, in order to show conveniently, the structures in the drawings of the specification of the application are not drawn strictly according to the proportion, and the person skilled in the art will reasonably select the size of each structure according to the actual situation, which is the known technology of the person skilled in the art, so it is not disclosed in detail in the application.

[0035] In the normal working process, when the overvoltage phenomenon occurs in the electric appliance, the current will be guided to the grounding module 1 along the wire, when the ground resistance of the area where the grounding module 1 and the shell 2 are located is at a low level, the overvoltage current will smoothly pass through the grounding module 1 and be guided to the ground, thereby protecting the electric appliance, and when the ground resistance of the area where the grounding module 1 and the shell 2 are located is at a high level, the overvoltage current cannot smoothly pass through the grounding module 1 and be guided to the ground, at the same time, the grounding module 1 will generate a large amount of heat and be conducted to the ground soil and the area where the shell 2 is located, causing the hot melt adhesive between the sealing cover 3 and the counterweight ring 4 to soften, the adhesive force provided by the hot melt adhesive cannot support the weight of the counterweight ring 4, the counterweight ring 4 will fall off from the sealing cover 3, and the trigger capsule 5 will be pressed, causing the elastic capsule 501 to deform, and due to the excavation of the drainage port 202, the elastic capsule 501 will stretch into the drainage port 202 during the deformation process, the area controlling the deformation of the elastic capsule 501 will tear at the prefabricated groove 502 under the action of the prefabricated groove 502, and the sodium chloride solution loaded in the elastic capsule 501 will flow out, modifying the soil in the area between the grounding module 1 and the shell 2, increasing the moisture content and reducing the resistance, so that the overvoltage current of the electric appliance is more easily guided to the ground, and the electric appliance is less likely to be burned out by overvoltage, and personnel casualties are less likely to occur.

[0036] The sodium chloride solution is mixed with fluorescent pigments, when the trigger capsule 5 is broken, the sodium chloride and fluorescent solution will flow into the soil, and under the action of high temperature generated by the grounding module 1, transpiration occurs, the sodium chloride solution will bring the fluorescent pigments to the soil surface, so that the maintenance personnel can find it in time and maintain and manage it in time. The area where the grounding module 1 is located is erected with a monitoring device 12, and the monitoring device 12 is electrically connected with a control terminal 13. The monitoring device 12 detects the area where the grounding module 1 is located, and finds the traces of fluorescent pigments in time, so as to maintain and manage it in time.

[0037] Please refer to Figure 3 and Figure 10 The sodium chloride solution is mixed with fluorescent pigments, when the trigger capsule 5 is broken, the sodium chloride and fluorescent solution will flow into the soil, and under the action of high temperature generated by the grounding module 1, transpiration occurs, the sodium chloride solution will bring the fluorescent pigments to the soil surface, so that the maintenance personnel can find it in time and maintain and manage it in time. The area where the grounding module 1 is located is erected with a monitoring device 12, and the monitoring device 12 is electrically connected with a control terminal 13. The monitoring device 12 detects the area where the grounding module 1 is located, and finds the traces of fluorescent pigments in time, so as to maintain and manage it in time. The multiple inflatable balls 6 are suspended in the sodium chloride solution, and the multiple inflatable balls 6 are all filled with air. When the counterweight ring 4 exerts pressure on the trigger capsule 5, pressure is also exerted on the inflatable balls 6. Once the inflatable balls 6 are broken under the action of pressure, on the one hand, the impact generated by the breaking will cause the cracks of the inflatable balls 6 to tear rapidly, and on the other hand, when the air in the inflatable balls 6 rushes out, it will also loosen the soil wetted by the sodium chloride, so that the sodium chloride solution can more easily spread in the soil, rapidly reduce the soil resistance of the area where the grounding module 1 and the shell 2 are located, and facilitate the guidance and unloading of overvoltage current. The multiple inflatable balls 6 are fixedly connected with multiple needles 602 outside the ball shell 601. The length of the needle 602 is three times the thickness of the ball shell 601. When the multiple inflatable balls 6 contact due to pressure, the needle 602 will directly pierce the ball shell 601, ensuring the breaking of the ball shell 601. The multiple elastic fibers 603 are fixedly connected to the outer wall of the ball shell 601. The multiple elastic fibers 603 are in three-dimensional spiral shape. Adjacent two elastic fibers 603 are intertwined to form a three-dimensional spatial structure. The multiple elastic fibers 603 can effectively protect the ball shell 601. When the inflatable balls 6 collide due to irregular motion, they are not easy to break due to the needle 602. The end of the elastic fiber 603 close to the ball shell 601 extends into the ball shell 601 and interlaces with each other to form multiple net structures in the ball shell 601, so that the ball shell 601 is not easy to produce a large amount of debris when it is broken, facilitating subsequent recycling and reuse.

[0038] Please refer to Figures 3-6The upper end of the shell body 201 is provided with a mounting groove 203, the side wall of the sealing cover 3 is provided with a notched groove matching the mounting groove 203 in position, the cross section of the notched groove is smaller than the cross section area of the mounting groove 203, which facilitates the opening of the sealing cover 3 by the staff, the mounting groove 203 is fixedly connected with a fixed tube 7, the fixed tube 7 is inserted with a movable column 9, the inner wall of the movable column 9 is fixedly connected with a 9, the 9 is fixedly connected with the outer shell 2 through a compression spring 11, the inner wall of the fixed tube 7 is provided with a pair of limiting rings 10, the outer wall of the movable column 9 is fixedly connected with a limiting sliding block, in the process of installation of the sealing cover 3, the mounting groove 203 is misaligned with the notched groove, under the action of the movable column 9, the outer shell 2 is not easy to directly contact with the sealing cover 3 during installation, and the user is not easy to be pinched, then the mounting groove 203 is aligned with the notched groove by rotating the sealing cover 3, the installation of the sealing cover 3 is completed, and the outer wall of the compression spring 11 is close to the inner wall of the movable column 9, so that the compression spring 11 is not easy to deform in a non-working direction after being stressed, and the compression spring 11 is not easy to be damaged in advance.

[0039] In the application, when the ground resistance of the area where the grounding module 1 and the outer shell 2 are located is at a high level, the overvoltage current cannot be smoothly guided to the ground through the grounding module 1, at the same time, the grounding module 1 generates a large amount of heat and conducts to the ground soil and the area where the outer shell 2 is located, causing the hot melt adhesive between the sealing cover 3 and the counterweight ring 4 to soften, the adhesive force provided by the hot melt adhesive cannot support the weight of the counterweight ring 4, the counterweight ring 4 will fall off from the sealing cover 3, and the trigger capsule 5 is pressed, so that the elastic capsule 501 is deformed, and due to the opening of the overflow port 202, the elastic capsule 501 will extend into the overflow port 202 during deformation, the area of the elastic capsule 501 deformed under the action of the prefabricated groove 502, the elastic capsule 501 will be torn at the prefabricated groove 502, at the same time, the sodium chloride solution loaded in the elastic capsule 501 flows out, modifies the soil between the grounding module 1 and the outer shell 2, increases the moisture content of the soil, reduces the resistance of the soil, and the overvoltage current of the electrical appliance is more easily guided to the ground, and the overvoltage burning of the electrical appliance is not easy to cause, and personnel casualties are not easy to occur.

[0040] At the same time, the inflating ball 6 is added in the sodium chloride solution, and the inflating ball 6 will also be broken under pressure during the breaking of the trigger capsule 5, on the one hand, it can accelerate the growth of the crack of the trigger capsule 5 and speed up the overflow speed of the sodium chloride solution, on the other hand, the overflow air can loosen the soil that has been wetted, so that the sodium chloride solution is more easily diffused in the soil, and the soil resistance of the area where the grounding module 1 and the outer shell 2 are located is rapidly reduced, facilitating the guidance and unloading of the overvoltage current.

[0041] The above merely provides the preferred embodiments of the present application, but the protection scope of the present application is not limited thereto, and any person skilled in the art, according to the technical solution and the improvement concept of the present application, makes equivalent replacement or change within the technical scope disclosed by the present application, should be covered within the protection scope of the present application.

Claims

1. A resistance grounding system with a protective structure, comprising a grounding module, characterized in that, The ground module is electrically connected with a user appliance group, the ground module comprises a ground module (1) and a shell (2) with matched sizes, the shell (2) is sleeved on the outer side of the ground module (1), and the ground module (1) and the shell (2) are coaxial, the shell (2) comprises a shell main body (201), a plurality of drainage openings (202) are opened in the inner side of the shell main body (201), the plurality of drainage openings (202) all penetrate through the shell main body (201), a sealing cover (3) matched with the shell main body (201) is arranged at the opening of the shell main body (201), a counterweight ring (4) is fixedly connected to the lower end of the sealing cover (3), the sealing cover (3) and the counterweight ring (4) are fixedly connected through hot melt glue, a trigger capsule (5) is arranged in the shell main body (201), the trigger capsule (5) comprises an elastic capsule (501), the elastic capsule (501) is filled with a sodium chloride solution, a plurality of prefabricated grooves (502) matched with the drainage openings (202) are opened in the side of the elastic capsule (501) close to the ground module (1). A plurality of inflatable balls (6) are put into the sodium chloride solution, the plurality of inflatable balls (6) all comprise a ball shell (601), the plurality of ball shells (601) are all filled with air, the plurality of inflatable balls (6) are all suspended in the sodium chloride solution, a plurality of thorn needles (602) are fixedly connected to the outer side of the ball shell (601), the length of the thorn needle (602) is three times the thickness of the ball shell (601), a plurality of elastic fibers (603) are fixedly connected to the outer wall of the ball shell (601), the plurality of elastic fibers (603) all have a three-dimensional spiral shape, and adjacent two elastic fibers (603) are intertwined to form a three-dimensional space structure.

2. The resistance grounding system with a protection structure according to claim 1, characterized in that, The sodium chloride solution is mixed with a fluorescent pigment.

3. The resistance grounding system with protective structure according to claim 1, characterized in that, The area where the ground module is located is provided with a monitoring device (12), and the monitoring device (12) is electrically connected with a control terminal (13).

4. The resistance grounding system with protective structure according to claim 1, characterized in that, The end of the elastic fiber (603) close to the ball shell (601) extends into the ball shell (601) and is intertwined in the ball shell (601) to form a plurality of net structures.

5. The resistance grounding system with protective structure according to claim 1, characterized in that, An installation groove (203) is opened in the upper end of the shell main body (201), a notched groove matched with the installation groove (203) is opened in the side wall of the sealing cover (3), and the cross-sectional area of the notched groove is smaller than that of the installation groove (203).

6. The resistance grounding system with a protection structure according to claim 5, characterized in that, A fixed tube (7) is fixedly connected to the installation groove (203), a movable column (8) is inserted into the fixed tube (7), a connecting table (9) is fixedly connected to the inner wall of the movable column (8), a compression spring (11) is fixedly connected between the connecting table (9) and the shell (2), a pair of limiting rings (10) are opened in the inner wall of the fixed tube (7), and a limiting sliding block is fixedly connected to the outer wall of the movable column (8).

7. The resistance grounding system with protective structure according to claim 6, characterized in that, The outer wall of the compression spring (11) is close to the inner wall of the movable column (8).

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