CN214337129U

CN214337129U - Protective grounding box

Info

Publication number: CN214337129U
Application number: CN202022865989.6U
Authority: CN
Inventors: 钟梓枫; 张森; 龙运宁; 马超; 欧阳江
Original assignee: Dihai Optoelectronic Technology Co ltd
Current assignee: Dihai Optoelectronic Technology Co ltd
Priority date: 2020-12-03
Filing date: 2020-12-03
Publication date: 2021-10-01
Anticipated expiration: 2030-12-03

Abstract

The utility model relates to a transmission of electricity technical field discloses a protection grounding box, can avoid direct current circuit ground connection position's high temperature, monitors the temperature. The utility model comprises a box body with a visual window at the front side, a sealing sleeve which is arranged at the lower end of the box body and is communicated with the interior of the box body, and a binding post, a jointing clamp, a direct current voltage protector, a temperature sensor and a digital display thermometer which are arranged in the box body; the direct-current voltage protector and the grounding column are electrically connected with corresponding jointing clamps through first copper bars respectively; the grounding column is electrically connected with the direct-current voltage protector through a second copper bar; the temperature sensors are arranged on the corresponding direct-current voltage protectors; the acquisition end of the digital display thermometer is electrically connected with the corresponding temperature sensor, and the display screen of the digital display thermometer faces the visual window. The utility model discloses can avoid appearing the phenomenon that the temperature is too high to can audio-visually monitor the temperature, improve the efficiency of fortune examining, improve security, reliability and leakproofness.

Description

Protective grounding box

Technical Field

The utility model relates to a transmission of electricity technical field, especially a protection grounding box.

Background

In the existing direct current buried line, the often used grounding box is directly replaced by the grounding box of the alternating current line, and because the operating conditions of the grounding box of the direct current line are much more severe than those of the grounding box of the alternating current line, the direct application of the grounding box of the cross-linked line can cause the line to have problems, such as high induced voltage, abnormal temperature and the like, and the temperature cannot be detected in time.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the utility model provides a protection grounding box can avoid the high temperature of direct current circuit ground connection position to monitor the temperature in real time.

The protective grounding box according to the embodiment of the utility model comprises a box body, a binding post, three sealing sleeves, three jointing clamps, two direct current voltage protectors, two temperature sensors and two digital display thermometers; a visual window is arranged on the front side of the box body; the three sealing sleeves are arranged at the lower end of the box body in a parallel mode and are communicated with the interior of the box body; the three jointing clamps are arranged in the box body in a parallel mode; the two direct-current voltage protectors are arranged inside the box body, and first ends of the direct-current voltage protectors are electrically connected with the corresponding jointing clamps through first copper bars; the grounding column is arranged inside the box body, a first end of the grounding column is electrically connected with the corresponding jointing clamp through a first copper bar, and a second end of the grounding column is electrically connected with a second end of the direct-current voltage protector through a second copper bar; the two temperature sensors are respectively arranged on the corresponding direct-current voltage protectors; the two digital display thermometer acquisition ends are respectively and electrically connected with the corresponding temperature sensors, and the display screens of the digital display thermometers face the visual windows.

According to the utility model discloses protection grounding box has following beneficial effect at least: the direct-current voltage protector is adopted, the phenomenon of temperature abnormity caused by high induced voltage in the working period can be avoided, a temperature sensor and a digital display thermometer are added, and a visual window is matched, so that the temperature of the direct-current voltage protector can be visually monitored, the operation and detection efficiency can be improved, meanwhile, whether the temperature of the direct-current voltage protector exceeds the withstand voltage value can be quickly judged, and the safety and the reliability are improved; adopt the seal cover, can prevent into water to improve the leakproofness, ensure that protection grounding box can normally work.

According to some embodiments of the utility model, the rear side of box body is equipped with fixed mounting portion.

According to some embodiments of the invention, the wire holder comprises a wire holder, a sliding clamp and an adjusting screw; the middle part of the wire holder is provided with a wire connecting hole; the sliding clamp is arranged in the wiring hole in a sliding manner; one end of the adjusting screw penetrates through the side wall of the wire holder and is fixedly connected with one side of the sliding clamp, and the adjusting screw is in threaded connection with the wire holder.

According to the utility model discloses a some embodiments, the seal cover is inside to be provided with at least one annular seal groove along axial direction, be equipped with ring type seal on the annular seal groove.

According to some embodiments of the utility model, the inside gasbag that is equipped with of ring packing, the gasbag passes through gas-supply pipe and air pump intercommunication.

According to some embodiments of the utility model, be equipped with first insulation board in the box, it is three the binding clip set up respectively with on the first insulation board.

According to some embodiments of the utility model, be equipped with second insulation board, two in the box direct current voltage protector reaches the earth terminal set up respectively in on the second insulation board.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic structural view of a protective grounding box according to an embodiment of the present invention;

fig. 2 is a schematic structural view of the left side direction of the protective grounding box shown in fig. 1;

fig. 3 is a schematic structural view of a binding clip for protecting a ground box shown in fig. 1.

Reference numerals: the box body 100, the visual window 110, the sealing sleeve 200, the wiring clamp 300, the wiring holder 310, the wiring hole 311, the sliding clamp 320, the adjusting screw 330, the direct-current voltage protector 400, the first copper bar 500, the second copper bar 600, the digital display thermometer 700, the fixed mounting part 800, the first insulating plate 900 and the second insulating plate 1000.

Detailed Description

This section will describe in detail the embodiments of the present invention, preferred embodiments of the present invention are shown in the attached drawings, which are used to supplement the description of the text part of the specification with figures, so that one can intuitively and vividly understand each technical feature and the whole technical solution of the present invention, but they cannot be understood as the limitation of the protection scope of the present invention.

In the description of the present invention, it should be understood that the orientation or positional relationship indicated with respect to the orientation description, such as up, down, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element 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.

In the description of the present invention, a plurality of means are one or more, a plurality of means are two or more, and the terms greater than, less than, exceeding, etc. are understood as not including the number, and the terms greater than, less than, within, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present invention, unless there is an explicit limitation, the words such as setting, installation, connection, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in combination with the specific contents of the technical solution.

Referring to fig. 1 and 2, the protective grounding box according to the embodiment of the present invention includes a box body 100, terminals (not shown), three sealing sleeves 200, three jointing clamps 300, two dc voltage protectors 400, two temperature sensors (not shown), and two digital thermometers 700; a visual window 110 is arranged on the front side of the box body 100; the three sealing sleeves 200 are arranged at the lower end of the box body 100 in a parallel mode, and the sealing sleeves 200 are communicated with the interior of the box body 100; the three jointing clamps 300 are arranged inside the box body 100 in a parallel manner; the two direct-current voltage protectors 400 are arranged inside the box body 100, and first ends of the direct-current voltage protectors 400 are electrically connected with the corresponding jointing clamps 300 through the first copper bars 500; the grounding column is arranged inside the box body 100, a first end of the grounding column is electrically connected with the corresponding jointing clamp 300 through the first copper bar 500, and a second end of the grounding column is electrically connected with a second end of the direct-current voltage protector 400 through the second copper bar 600; two temperature sensors (not shown) are respectively arranged on the corresponding direct current voltage protectors 400; the acquisition ends of the two digital display thermometers 700 are respectively electrically connected with corresponding temperature sensors (not shown in the figure), and the display screens of the digital display thermometers 700 face the visualization window 110.

When the cable connector is installed, the positive polarity cable and the negative polarity cable respectively pass through the corresponding sealing sleeves 200 and are fixed on the corresponding two jointing clamps 300, the corresponding two jointing clamps 300 are respectively electrically connected with the corresponding direct current voltage protectors 400 through the first copper bars 500, namely, the positive polarity cable and the negative polarity cable are respectively electrically connected with the corresponding direct current voltage protectors, wherein the rest sealing sleeve 200 is penetrated with a grounding cable which is fixed on the rest jointing clamps 300, the jointing clamp 300 is electrically connected with the wiring terminal (not shown) through the first copper bars 500, meanwhile, the wiring terminal (not shown) and the two direct current voltage protectors 400 are electrically connected through the second copper bars 600, and further, the positive polarity cable and the negative polarity cable are electrically connected with the grounding cable, conceivably, three first copper bars 500 are arranged, corresponding dc voltage protectors 400 and clips 300 may be electrically connected and corresponding terminals (not shown) and clips 300 may be electrically connected.

During operation, the reading of the digital display thermometer 700 can be directly read through the visual window 110, so that whether the corresponding cable is in a normal temperature state or not can be observed in real time, meanwhile, the direct-current voltage protector 400 is adopted to replace an alternating-current voltage protector, the overhigh temperature of the grounding position of a direct-current line can be avoided, the overhigh temperature of the sealing sleeve 200, the box body 100 and the grounding cable can be avoided, and the overall reliability is ensured.

In some embodiments of the present invention, the rear side of the box body 100 is provided with a fixed installation part 800. The fixed mounting part 800 is arranged, so that the box body 100 can be conveniently and fixedly mounted, and the stable operation of the inside of the protective agent grounding box can be ensured.

It is conceivable that the fixing and mounting portion 800 may be directly welded and fixed by a welding member, or may be detachably fixed and connected by a fixing hole of the present embodiment in cooperation with a corresponding screw or bolt structure, so as to fix or transfer the position of the box body 100.

Referring to fig. 3, in some embodiments of the present invention, a wire holder 300 includes a wire holder 310, a sliding clamp 320, and an adjustment screw 330; the middle part of the wire holder 310 is provided with a wire hole 311; the sliding clamp 320 is slidably arranged in the wiring hole 311; one end of the adjusting screw 330 passes through the sidewall of the wire holder 310 and is fixedly connected to one side of the sliding clamp 320, and the adjusting screw 330 is threadedly connected to the wire holder 310. The size of the wire hole 311 can be adjusted by matching the adjusting screw 330 and the sliding clamp 320, so as to clamp or release the cable.

It is contemplated that the clamp 300 may also be used with two hinged arcuate clamps, with a torsion spring, or may be used to clamp or secure a cable.

In some embodiments of the present invention, at least one annular sealing groove (not shown) is disposed inside the sealing sleeve 200 along the axial direction, and an annular sealing ring (not shown) is disposed on the annular sealing groove (not shown). And by matching with an annular sealing ring (not shown in the figure), the waterproof performance can be improved, so that the cable joint is prevented from being easily watered, and the reliability is improved.

In some embodiments of the present invention, an air bag is disposed inside the ring-shaped sealing ring (not shown), and the air bag is communicated with the air pump through a gas pipe. Adopt the annular seal circle (in the figure) of gasbag, then can adjust the volume of annular seal circle (in the figure), when needs plug cable, can release the inside atmospheric pressure of gasbag through the air pump, in order to reduce the volume of annular seal circle (in the figure), then can make things convenient for the cable to insert or extract, when the cable is fixed well, then aerify to the gasbag through the air pump, in order to enlarge the volume of annular seal circle (in the figure), and then can realize inseparable butt to the cable, thereby can not only play waterproof effect, also can play fixed effect simultaneously, in order to ensure that protection grounding incasement portion can normal operating.

The number of the ring-shaped sealing rings (not shown) can be one, two or more than three, and according to the size of the sealing sleeve 200, a corresponding number of ring-shaped sealing rings (not shown) can be arranged, so that when the cable is arranged in the corresponding sealing sleeve 200 in a penetrating manner, the sealing performance and the stability of the cable are kept in a normal and good state.

In some embodiments of the present invention, a first insulating plate 900 is disposed in the box, and three jointing clamps 300 are disposed on the first insulating plate 900 respectively. With the first insulating plate 900, the binding clip 300 can be maintained in a fixed state, preventing an internal deviation, to ensure stability of the binding clip 300.

In some embodiments of the present invention, a second insulating plate 1000 is disposed in the box, and the two dc voltage protectors 400 and the ground post are disposed on the second insulating plate 1000 respectively. By using the second flange, the dc voltage protector 400 and the ground post can be protected and fixed, and the internal deviation can be prevented, so as to ensure the stability of the dc voltage protector 400 and the ground post.

According to the utility model discloses protection grounding box, through so setting up, can reach some effects as following at least, adopt direct current voltage protector 400, can avoid leading to the unusual phenomenon of temperature because of the induced voltage appears during operation, and increase temperature sensor (not shown in the figure) and digital display thermometer 700, cooperation visual window 110, then can audio-visually monitor direct current voltage protector 400's temperature, can improve the efficiency of fortune examining, can judge fast simultaneously whether direct current voltage protector 400's temperature surpasss its withstand voltage value, security and reliability have been improved; by adopting the sealing sleeve 200, water can be prevented from entering, so that the sealing performance is improved, and the normal work of the protective grounding box is ensured.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A protective grounding box, comprising:

the front side of the box body is provided with a visual window;

the three sealing sleeves are arranged at the lower end of the box body in a parallel mode and are communicated with the interior of the box body;

the three jointing clamps are arranged in the box body in a parallel mode;

the two direct-current voltage protectors are arranged inside the box body, and first ends of the direct-current voltage protectors are electrically connected with the corresponding jointing clamps through first copper bars;

the grounding column is arranged inside the box body, a first end of the grounding column is electrically connected with the corresponding jointing clamp through a first copper bar, and a second end of the grounding column is electrically connected with a second end of the direct-current voltage protector through a second copper bar;

the two temperature sensors are respectively arranged on the corresponding direct-current voltage protectors;

the acquisition ends of the digital display thermometers are respectively and electrically connected with the corresponding temperature sensors, and the display screens of the digital display thermometers face the visual windows.

2. The protective grounding box of claim 1, characterized in that: the rear side of the box body is provided with a fixed installation part.

3. The protected grounding box of claim 1, wherein the binding clip comprises:

the middle part of the wire holder is provided with a wire connecting hole;

the sliding clamp is arranged in the wiring hole in a sliding manner;

and one end of the adjusting screw penetrates through the side wall of the wire holder and is fixedly connected with one side of the sliding clamp, and the adjusting screw is in threaded connection with the wire holder.

4. The protective grounding box of claim 1, characterized in that: at least one annular sealing groove is formed in the sealing sleeve along the axial direction, and an annular sealing ring is arranged on the annular sealing groove.

5. A protected earthing box according to claim 4, characterized in that: an air bag is arranged in the annular sealing ring and is communicated with an air pump through an air conveying pipe.

6. The protective grounding box of claim 1, characterized in that: be equipped with first insulating plate in the box, three the binding clip set up respectively with on the first insulating plate.

7. The protective grounding box of claim 1, characterized in that: and a second insulating plate is arranged in the box body, and the two direct-current voltage protectors and the grounding column are respectively arranged on the second insulating plate.