CN216599544U

CN216599544U - Grounding protection structure

Info

Publication number: CN216599544U
Application number: CN202123210341.6U
Authority: CN
Inventors: 胡金东; 范良国
Original assignee: Rishan Computer Accessories Jiashan Co Ltd
Current assignee: Rishan Computer Accessories Jiashan Co Ltd
Priority date: 2021-12-20
Filing date: 2021-12-20
Publication date: 2022-05-24
Anticipated expiration: 2031-12-20

Abstract

The utility model relates to a grounding protection structure. It has solved the technical problem that current electrical grounding can't realize multi-line connection. This ground protection structure includes: one end of the grounding pile is embedded into the ground, and the other end of the grounding pile extends out of the surface of the ground and is used for being electrically connected with the ground; the connecting sleeve is sleeved on the circumferential outer wall of one end, extending out of the ground, of the grounding pile, and is limited at one end, extending out of the ground, of the grounding pile; and at least one grounding guide block is arranged on the outer wall of the connecting sleeve, and at least one grounding terminal is arranged on the grounding guide block. This ground protection structure realizes the ground connection of the outside electrical equipment of multiline, further strengthens connecting sleeve and pile connecting column's being connected simultaneously, guarantees the electrically conductive effect of ground connection, sets up the electrically conductive ground connection of the multiline of being convenient for of a plurality of ground terminals moreover, has great space and can effectively set up ground terminal at an interval, makes to connect each other and is not disturbed.

Description

Grounding protection structure

Technical Field

The utility model belongs to the field of electrical grounding, and relates to a grounding protection structure.

Background

The grounding of the household photovoltaic system comprises component side grounding, inverter side grounding and distribution box side grounding. Distributed photovoltaic equipment is adopted in the existing plant area, the grounding structure needs to simultaneously achieve the grounding function of multiple areas and multiple lines, errors can be reported due to too low ground insulation impedance or too large leakage current of the equipment, the generated energy is influenced, and even the personal safety is damaged.

For example, the Chinese patent document discloses a miniaturized low-voltage grounding device [201921818858.3], which comprises a grounding connector mechanism, a connecting rod and a hollow and insulated handle, wherein one end of the connecting rod passes through the grounding connector mechanism, the inner part of one end of the connecting rod is hollow, a metal fixing block is arranged in the connecting rod, a plurality of springs fixedly connected with the fixing block are arranged on the periphery of the fixing block, a plurality of through grooves are arranged on the surface of the connecting rod, a metal clamping block is fixedly connected with the other end of each spring, the metal clamping block passes through the through grooves, a through hole is arranged at one end of the handle, the other end of the connecting rod penetrates into the handle through the through hole, a plurality of clamping grooves are arranged on the inner wall of the handle, the metal clamping block is clamped into the clamping grooves, a first magnet fixedly connected with the handle is arranged in the handle, the first magnet is attracted with the metal fixing block, the device can effectively connect with a grounding wire, and can be effectively clamped after different connectors are replaced and grounded, the reliability of the device during use is enhanced, but the device is not suitable for multi-line grounding of large-area photovoltaic equipment, and is high in production cost and inconvenient to install.

Disclosure of Invention

The present invention is directed to the above problems in the prior art, and provides a ground protection structure.

The purpose of the utility model can be realized by the following technical scheme:

a ground protection structure comprising:

one end of the grounding pile is embedded into the ground, and the other end of the grounding pile extends out of the surface of the ground and is used for being electrically connected with the ground;

one end of the connecting sleeve is sleeved on the circumferential outer wall of one end of the grounding pile extending out of the ground and is limited at one end of the grounding pile extending out of the ground;

and at least one grounding guide block is arranged on the outer wall of the connecting sleeve, at least one grounding terminal is arranged on the grounding guide block, and the grounding terminal is used for being electrically connected with electrical equipment.

Furthermore, one end of the grounding pile embedded into the ground is a pointed end.

Furthermore, an annular shoulder is arranged at one end, extending out of the ground, of the grounding pile.

Furthermore, an annular step abutting against the annular convex shoulder is arranged on the inner wall of one end, close to the grounding pile, of the connecting sleeve.

Furthermore, the outer wall of the annular convex shoulder is provided with a limiting notch arranged along the length direction of the grounding pile, and the connecting sleeve is provided with a limiting column clamped into the limiting notch.

Furthermore, the ground terminal comprises at least one stud arranged on the ground guide block, a conducting ring sleeved on the stud, and a fastening nut which is in threaded connection with the stud and limits the wire ring from separating from the stud.

Further, the ground protection structure has at least two ground piles, and the ground piles are connected to each other through the connecting bar.

Compared with the prior art, this ground protection structure passes through the pre-buried embedding ground of ground connection stake, and the adapter sleeve extends and extends, realizes the ground connection of outside electrical equipment, and whole construction simple to operate is swift, further strengthens the adapter sleeve simultaneously and is connected with the pile extension post, guarantees the electrically conductive effect of ground connection, sets up the electrically conductive ground connection of a plurality of ground connection terminals multi-circuit of being convenient for moreover, has great space and can effectively set up ground connection terminal at the interval, makes to connect not disturbed each other.

Drawings

Fig. 1 is a schematic structural diagram of a ground protection structure according to the present invention.

Fig. 2 is a schematic view of the ground protection structure of fig. 1.

Fig. 3 is a schematic top view of the ground protection structure of fig. 1.

Fig. 4 is a schematic diagram of multiple connections of the ground protection structure of fig. 1.

In the figure, 10, a grounding pile; 11. a pointed end; 12. an annular shoulder; 20. a connecting sleeve; 21. An annular step; 22. a limiting column; 30. a grounding guide block; 31. a ground terminal; 311. a stud; 312. conducting rings; 313. fastening a nut; 40. and (4) connecting the rods.

Detailed Description

Example one

Fig. 1 to fig. 3 are schematic structural diagrams of a ground protection structure according to the present invention. The ground protection structure includes: the grounding pile comprises a grounding pile 10, a connecting sleeve 20 sleeved outside the grounding pile 10, and at least one grounding guide block 30 arranged on the outer wall of the connecting sleeve 20. In this embodiment, the grounding stud 10, the connecting sleeve 20 and the grounding lead 30 are made of conductive metal materials. It is contemplated that the ground protection structure may include other functional components and specific structures, such as electrical devices, mounting structures, etc., which are well known to those skilled in the art, and therefore, will not be described in detail herein.

The ground pile 10 is used for being electrically connected with the ground and generally needs to be arranged in soil below 1.5 meters of the ground, namely a pit with a preset depth is dug in advance, one end of the ground pile 10 is embedded into the pit and the other end of the ground pile is reserved to extend out of the surface of the pit, one end of the ground pile 10 is a pointed end 11, the ground pile 10 is favorably knocked into the pit, one end of the ground pile 10 extending out of the ground is provided with an annular convex shoulder 12, the annular convex shoulder 12 is a cap end of the ground pile 10, the outer diameter of the annular convex shoulder is larger than that of a body of the ground pile 10, external stress is favorably realized, and construction is convenient and rapid.

And the connecting sleeve 20 is sleeved at one end, extending out of the ground, of the grounding pile 10, and the circumferential inner wall of the connecting sleeve 20 is in close contact connection with the outer wall of the annular shoulder 12. The inner wall of one end, close to the ground pile 10, of the connecting sleeve 20 is provided with an annular step 21 abutting against the annular shoulder 12, the annular shoulder 12 of the ground pile 10 correspondingly abuts against the annular step 21, and the connecting sleeve 20 is forced to be limited at the end, extending out of the ground, of the ground pile 10 to form an axial limit of the connecting sleeve 20. Preferably, the outer wall of the annular shoulder 12 is provided with a limiting notch arranged along the length direction of the grounding pile 10, and the connecting sleeve 20 is provided with a limiting post 22 clamped into the limiting notch. Through the cooperation of spacing post 22 with spacing breach, form the circumference restriction of connecting sleeve 20, avoid connecting sleeve 20 to rotate and influence the connection reliability, further strengthen connecting sleeve 20 and the connection of pile extension post simultaneously, guarantee ground connection electrically conductive effect.

The ground guide 30, as an extension structure of the connection sleeve 20, can be provided with a plurality of ground terminals 31 at the same time to facilitate the grounding conduction of multiple lines, and has a larger space, so that the ground terminals 31 can be effectively arranged at intervals to avoid the mutual connection interference.

The ground guide block 30 is provided with at least one ground terminal 31, and the ground terminal 31 is electrically connected with the electrical equipment. The ground terminal 31 includes at least one stud 311 disposed on the ground guide block 30, a conductive ring 312 disposed on the stud 311, and a fastening nut 313 threadedly coupled to the stud 311 and limiting the wire ring from disengaging from the stud 311. The conductive ring 312 is a ground terminal for connecting the electrical device, and the conductive ring 312 is stably clamped on the connection terminal by the fastening nut 313, so that the conductive ring 312 is prevented from being loosened, and the connection reliability is improved.

After the connection is finished, compacting treatment is carried out after filling soil in the soil pit at the later stage, or the compacting treatment is carried out after concrete pouring treatment is carried out on the upper end of the grounding protection structure.

Example two

Referring to fig. 4, the structure and principle of the present embodiment are substantially the same as those of the first embodiment, and the only difference is that: the ground protection structure is provided with at least two ground piles 10, and the ground piles 10 are connected with each other through a connecting rod 40. A plurality of grounding studs 10 are interconnected to form a grounding grid suitable for multi-device multi-wire connections requiring greater impedance. It is conceivable that the multiple grounding studs 10 may also be connected by directly connecting two grounding terminals 31.

The specific embodiments described herein are merely illustrative of the spirit of the utility model. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the utility model as defined in the appended claims.

Claims

1. A ground protection structure, characterized in that the ground protection structure comprises:

2. The ground protection structure of claim 1, wherein the end of the ground pile embedded in the ground is a pointed end.

3. The earth protection structure of claim 1, wherein the end of the earth stud protruding from the ground is provided with an annular shoulder.

4. The earth protection structure of claim 3, characterized in that the inner wall of the end of the connection sleeve near the earth pile is provided with an annular step abutting against the annular shoulder.

5. The ground protection structure of claim 3, wherein the outer wall of the annular shoulder is provided with a limiting notch arranged along the length direction of the ground pile, and the connecting sleeve is provided with a limiting post clamped into the limiting notch.

6. The ground protection structure of claim 1, wherein said ground terminal includes at least one stud disposed on said ground guide block, a conductive ring disposed around said stud, and a fastening nut threadably engaged with said stud and limiting the wire ring from disengaging from the stud.

7. The ground protection structure of claim 1, characterized in that it has at least two ground piles, which are interconnected by a docking bar.