CN212723162U

CN212723162U - A insulating joint test box for natural gas line maintains detection

Info

Publication number: CN212723162U
Application number: CN202021763801.0U
Authority: CN
Inventors: 卜生; 石俊锋; 彭振华
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-08-21
Filing date: 2020-08-21
Publication date: 2021-03-16
Anticipated expiration: 2030-08-21

Abstract

The utility model discloses an insulating joint test box that is used for natural gas line to maintain detection, the protective housing comprises a protective housing, protective housing both sides outer wall is provided with first test interface and second test interface respectively, and protective housing bottom outer wall four corners position is provided with four supporting legs respectively, and protective housing bottom outer wall is opened respectively has two rectangle through-holes, and two rectangle through-hole inner walls are provided with first junction tube and second junction tube respectively, and protective housing one side outer wall is provided with first change over switch respectively. The utility model discloses a set up the thread sealing knob and be provided with the circular through-hole of internal screw thread, pass the junction box through circular through-hole with the required cable conductor of test and get into inside the test box, the sealing washer of circular through-hole top outer wall setting can seal the gap between cable conductor and the circular through-hole, and a plurality of circular through-holes can let inside a plurality of test cable conductors get into the test box to satisfy the different test demands of test box.

Description

A insulating joint test box for natural gas line maintains detection

Technical Field

The utility model relates to a pipeline testing equipment technical field especially relates to an insulating joint test box that is used for natural gas line to maintain detection.

Background

The insulating joint is mainly applied to a gas transmission and distribution system and a gas pressure regulating station, and has the functions of insulating and isolating sections of a gas transmission and distribution pipeline and the gas pressure regulating station and the gas transmission and distribution pipeline from each other, protecting the gas transmission and distribution pipeline from electrochemical corrosion, and prolonging the service life of the pipeline, so that the quality of the performance of the insulating joint is of great significance to gas transmission safety. The test box that current insulation connects usefulness includes the cable wire, the copper sheet, the copper nose, terminal and case lid, the box, need unscrew the bolt in order to open the case lid during the test, and break off two zinc stick ground connection battery cable conductor of insulating joint both ends and pipeline cable conductor connection copper sheet respectively, then test every cable conductor terminal one by one with instrument test equipment, whether comprehensive judgement insulation connects inefficacy, can lead to the box leakproofness to weaken because the test box is often opened, still can bring into many steam even in the box, and then cause the test box to corrode, often break off the copper nose simultaneously also can cause troubles such as contact failure.

Through the retrieval, chinese patent application No. CN207081784U discloses an insulating joint test box, including the test box body, be equipped with at least a set of terminal group of constituteing by three terminal in its inner chamber, set up the spool that corresponds with terminal group on the box, three terminal passes through the test cable that the spool threading connects insulating joint one end respectively, battery and pipeline line and battery lead wire, but above-mentioned technical scheme still has the inside heat that produces in the time of the test box carries out the work and can't in time spill out owing to do not set up corresponding dampproofing ventilation equipment in the test box inside, causes the problem of damage to the electronic components of test box inside easily.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the shortcoming that exists among the prior art, and the insulating joint test box who is used for natural gas line to maintain the detection that proposes.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

an insulation joint test box for natural gas pipeline maintenance and detection comprises a protective shell, wherein the outer walls of two sides of the protective shell are respectively provided with a first test interface and a second test interface, four supporting legs are respectively arranged at four corners of the outer wall of the bottom of the protective shell, the outer wall of the bottom of the protective shell is respectively provided with two rectangular through holes, the inner walls of the two rectangular through holes are respectively provided with a first junction tube and a second junction tube, the outer wall of one side of the protective shell is respectively provided with a first change-over switch, a second change-over switch, a working switch and a control panel, the inner walls of two sides of the protective shell are respectively fixed with a first junction box and a second junction box through screws, the outer walls of one side of the first change-over switch and one side of the second change-over switch are respectively arranged on the outer walls of the first junction box and the second junction box, the inner wall, the outer walls of one side of the two circuit protection tubes are fixed on the outer wall of one side of the first junction box and the outer wall of one side of the second junction box through screws respectively, the outer walls of two sides of the third junction box are fixed with two L-shaped wire tubes through screws respectively, and the outer walls of the bottoms of the two L-shaped wire tubes are fixed on the outer walls of the tops of the first junction tube and the second junction tube through screws respectively.

As a further aspect of the present invention: the protective housing both sides outer wall is provided with two ventilation windows respectively, and ventilation window one side outer wall is provided with the filter screen, and filter screen bottom outer wall is provided with the fixed plate, and fixed plate top outer wall is provided with two dry pieces respectively.

As a further aspect of the present invention: two first cooling fans are arranged on the inner wall of one side of the protective shell respectively, and a temperature sensor and a second cooling fan are arranged on the outer wall of the bottom of the third junction box respectively; the temperature sensor, the first cooling fan and the second cooling fan are electrically connected with the control panel.

As a further aspect of the present invention: the outer wall of the top of the protective shell is respectively fixed with two sealing doors through hinges, and the outer wall of the top of each sealing door is provided with an observation window.

As a further aspect of the present invention: the circular through-hole that is array distribution is opened respectively to first wiring pipe top outer wall, and circular through-hole inner wall is provided with the internal thread, and the circular through-hole inner wall that is array distribution is provided with cable conductor more than three and the thread sealing knob more than three respectively, and thread sealing knob and cable conductor outer wall are provided with two sealing washers respectively, and first wiring pipe and second wiring pipe structure are unanimous.

As a further aspect of the present invention: first wiring pipe and L molded lines pipe outer wall are provided with two connecting blocks respectively, and the top outer wall four corners position of connecting block is provided with four screw holes respectively, and the top outer wall of the connecting block that is located first wiring pipe top outer wall is opened there is the notch groove frame, and the bottom outer wall of the connecting block that is located L molded lines pipe bottom outer wall is opened there is protruding piece, and notch groove frame and protruding piece size are unanimous.

As a further aspect of the present invention: first junction tube and second junction tube outer wall are provided with two fold hoses respectively, and fold hose top outer wall sets up on the bottom outer wall of protective housing, and the fold hose is made by insulating rubber.

The utility model has the advantages that:

1. through setting up the thread sealing knob and being provided with the circular through-hole of internal screw thread, pass the junction box through circular through-hole with the required cable conductor of test and get into inside the test box, the sealing washer of circular through-hole top outer wall setting can seal the gap between cable conductor and the circular through-hole, a plurality of circular through-holes can let inside a plurality of test cable conductors get into the test box, thereby satisfy the different test demands of test box, the thread sealing knob can seal the circular through-hole that the temporary use is not last, thereby the effectual air of having avoided or liquid gets into inside the test box through the junction box and causes the problem of damage to electronic components to appear.

2. The inner part of the test box is divided into a plurality of small parts which are convenient to disassemble and assemble by arranging the first junction box, the second junction box, the third junction box, the line protection tube and the L-shaped line tube which are respectively fixed in the protective shell by screws, so that the test box is convenient to install and disassemble; through setting up the fold hose of being made by insulating rubber, the fold hose can carry out corresponding buckling along with the cable conductor, can not lead to the fact the harm to the cable conductor of buckling to take place to buckle when can avoiding cable conductor rethread junction box to get into test box inside and lead to the impaired condition of circuit, the fold hose also can carry out certain protection to the cable conductor simultaneously, has effectively improved the holistic security performance of test box.

3. Through setting up the connecting block, groove frame and protruding piece, when connecting between junction box and L molded lines pipe, groove frame and protruding piece can the joint be in the same place to preliminary location has been carried out between junction box and the L molded lines pipe, then rethread connecting block and screw are fixed junction box and L molded lines pipe on the bottom inner wall of protective housing, thereby avoid the connection between junction box and the L molded lines pipe to take place the off normal entering test box inside of test cable conductor that leads to the off normal, the installation effectiveness of equipment has been improved.

Drawings

Fig. 1 is a schematic structural view of an insulated joint testing box for maintenance and detection of a natural gas pipeline according to the present invention;

fig. 2 is a schematic bottom view of an insulated joint testing box for natural gas pipeline maintenance and detection according to the present invention;

fig. 3 is a schematic cross-sectional structural view of an insulated joint testing box for maintenance and detection of a natural gas pipeline according to the present invention;

fig. 4 is a schematic structural view of a bottom of a junction box of an insulated joint testing box for natural gas pipeline maintenance and detection according to the present invention;

fig. 5 is a schematic structural view of a junction box of an insulated joint testing box for natural gas pipeline maintenance and detection according to the present invention;

fig. 6 is the utility model provides an insulating joint test box's circuit flow schematic diagram for natural gas line maintains detection.

In the figure: 1-a protective shell, 2-a ventilation window, 3-a first test interface, 4-a supporting leg, 5-a first change-over switch, 6-a control panel, 7-a second change-over switch, 8-a working switch, 9-a sealing door, 10-an observation window, 11-a first wiring pipe, 12-a second wiring pipe, 13-a corrugated hose and 14-a second test interface, 15-a first junction box, 16-a second junction box, 17-an L-shaped conduit, 18-a filter screen, 19-a drying block, 20-a line protection tube, 21-a first cooling fan, 22-a third junction box, 23-a temperature sensor, 24-a second cooling fan, 25-a cable, 26-a sealing ring, 27-a groove frame and 28-a thread sealing knob.

Detailed Description

The technical solution of the present patent will be described in further detail with reference to the following embodiments.

Reference will now be made in detail to embodiments of the present patent, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present patent and are not to be construed as limiting the present patent.

In the description of this patent, it is to be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientations and positional relationships indicated in the drawings for the convenience of describing the patent and for the simplicity of description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the patent.

In the description of this patent, it is noted that unless otherwise specifically stated or limited, the terms "mounted," "connected," and "disposed" are to be construed broadly and can include, for example, fixedly connected, disposed, detachably connected, disposed, or integrally connected and disposed. The specific meaning of the above terms in this patent may be understood by those of ordinary skill in the art as appropriate.

An insulation joint test box for natural gas pipeline maintenance detection is disclosed, as shown in fig. 1-5, comprising a protective shell 1, the outer walls of two sides of the protective shell 1 are respectively provided with a first test interface 3 and a second test interface 14, four support legs 4 are respectively arranged at four corners of the outer wall of the bottom of the protective shell 1, the outer wall of the bottom of the protective shell 1 is respectively provided with two rectangular through holes, the inner walls of the two rectangular through holes are respectively provided with a first junction box 11 and a second junction box 12, the outer wall of one side of the protective shell 1 is respectively provided with a first change-over switch 5, a second change-over switch 7, a working switch 8 and a control panel 6, the inner walls of two sides of the protective shell 1 are respectively fixed with a first junction box 15 and a second junction box 16 through screws, the outer walls of one side of the first change-over switch 5 and the second change-over switch 7 are respectively arranged on the outer walls of the first junction, the outer walls of the two sides of the third junction box 22 are respectively fixed with two circuit protection tubes 20 through screws, the outer wall of one side of each of the two circuit protection tubes 20 is respectively fixed on the outer wall of one side of each of the first junction box 15 and the second junction box 16 through screws, the outer walls of the two sides of the third junction box 22 are respectively fixed with two L-shaped wire tubes 17 through screws, and the outer walls of the bottoms of the two L-shaped wire tubes 17 are respectively fixed on the outer walls of the tops of the first junction tube 11 and the second junction tube 12 through screws.

In order to test the ventilation effect inside the box; as shown in fig. 1, 2 and 3, two ventilation windows 2 are respectively arranged on the outer walls of two sides of the protective shell 1, a filter screen 18 is arranged on the outer wall of one side of each ventilation window 2, a fixing plate is arranged on the outer wall of the bottom of each filter screen 18, and two drying blocks 19 are respectively arranged on the outer wall of the top of each fixing plate; through setting up ventilation window 2, filter screen 18 and dry piece 19, ventilation window 2 can play fine ventilation effect, let the inside circulation of air of test box, filter screen 18 can filter the air that gets into from ventilation window 2, avoid a large amount of dusts or mosquito to pass through ventilation window 2 and get into inside the test box and cause the damage to electronic components, dry piece 19 can absorb the moisture in the inside mobile air of test box, avoid too much leading to the impaired condition of electronic components to appear in the moisture of overcast and rainy weather test box inside.

In order to improve the heat radiation performance of the whole test box; as shown in fig. 3 and 4, two first heat dissipation fans 21 are respectively disposed on the inner wall of one side of the protective shell 1, and a temperature sensor 23 and a second heat dissipation fan 24 are respectively disposed on the outer wall of the bottom of the third junction box 22; the temperature sensor 23, the first cooling fan 21 and the second cooling fan 24 are electrically connected with the control panel 6, and the model of the temperature sensor 23 is GX18B 20; through setting up temperature sensor 23 and radiator fan, when the temperature of test box inside reachd the setting value, temperature sensor 23 sent the signal of telecommunication to control panel 6, and control panel 6 control radiator fan rotates for the flow of the inside air of test box to let hot-air follow two ventilation window 2 effluviums fast, avoid the inside high temperature of test box to lead to the impaired condition of electronic components to appear.

The interior of the test box is maintained conveniently; as shown in fig. 1, two sealing doors 9 are fixed on the outer wall of the top of the protective shell 1 through hinges, and an observation window 10 is arranged on the outer wall of the top of each sealing door 9; through setting up by fixed sealing door 9 of hinge and observation window 10, can make things convenient for the staff to look over the test box is inside at the test box during operation, when needs maintain and change the inside equipment of test box, only need open sealing door 9. The top of the test box can be completely opened, and the maintenance work of the test box becomes convenient.

In order to improve the tightness of the connection between the first and second

terminal tubes

11, 12 and the L-shaped wire tube 17; as shown in fig. 4 and 5, circular through holes are respectively formed in the outer wall of the top of the first wire connecting tube 11 and distributed in an array manner, internal threads are arranged on the inner wall of the circular through holes, more than three cables 25 and more than three thread sealing knobs 28 are respectively arranged on the inner wall of the circular through holes distributed in an array manner, two sealing rings 26 are respectively arranged on the outer walls of the thread sealing knobs 28 and the cables 25, and the first wire connecting tube 11 and the second wire connecting tube 12 are consistent in structure; through setting up the sealed knob of screw thread 28 and being provided with the circular through-hole of internal screw thread, pass the junction box through circular through-hole with the required cable conductor 25 of test inside the entering test box, sealing washer 26 that circular through-hole top outer wall set up can seal the gap between cable conductor 25 and the circular through-hole, a plurality of circular through-holes can let a plurality of test cable conductors get into inside the test box, thereby satisfy the test demand that the test box is different, the sealed knob of screw thread can seal the circular through-hole that the temporary use is not gone up, thereby the effectual air of having avoided or liquid get into inside the test box through the junction box and cause the problem of damage to electronic components to appear.

In order to allow the connection between the wire connecting pipe and the L-shaped pipe 17 to be performed quickly; as shown in fig. 5, the outer walls of the first wire connecting tube 11 and the L-shaped wire tube 17 are respectively provided with two connecting blocks, four corners of the outer wall of the top of each connecting block are respectively provided with four threaded holes, the outer wall of the top of each connecting block on the outer wall of the top of the first wire connecting tube 11 is provided with a groove frame 27, the outer wall of the bottom of each connecting block on the outer wall of the bottom of the L-shaped wire tube 17 is provided with a convex block, and the groove frame 27 and the convex block have the same size; through setting up the connecting block, recess frame 27 and protruding piece, when connecting between junction box and L molded lines pipe 17, recess frame 27 and protruding piece can the joint together, thereby to having carried out preliminary location between junction box and the L molded lines pipe 17, then rethread connecting block and screw are fixed junction box and L molded lines pipe 17 on the bottom inner wall of protective housing 1, thereby avoid the connection between junction box and the L molded lines pipe 17 to take place the off normal position and lead to inside the test cable line 25 can not normally get into the test box, the installation effectiveness of equipment has been improved.

To avoid the cable 25 from being damaged due to excessive bending at the junction tube entering the test box; as shown in fig. 4, the outer walls of the first wire connecting tube 11 and the second wire connecting tube 12 are respectively provided with two corrugated hoses 13, the top outer wall of each corrugated hose 13 is arranged on the bottom outer wall of the protective shell 1, and each corrugated hose 13 is made of insulating rubber; through the fold hose 13 that the setting was made by insulating rubber, fold hose 13 can carry out corresponding buckling along with the cable conductor, can not lead to the fact the harm to the cable conductor of buckling to take place to buckle when can avoiding cable conductor rethread junction box to get into test box inside and lead to the impaired condition of circuit, fold hose 13 also can carry out certain protection to the cable conductor simultaneously, has effectively improved the holistic security performance of test box.

The working principle is as follows: the cable 25 for testing is connected into the two L-shaped pipes 17 through the first wiring pipe 11 and the second wiring pipe 12, and then enters the third wiring box 22 through the L-shaped pipes 17, the test cable connected with one end of the insulating joint passes through the first wiring pipe 11, the test cable connected with the other end of the insulating joint passes through the second wiring pipe 12, the cable 25 entering the third wiring box 22 from the first wiring pipe 11 enters the first wiring box 15 through the circuit protection pipe 20 on one side of the third wiring box 22, different cables in the first wiring box 15 can be respectively conducted with corresponding interfaces on the first test interface 3 one by rotating the first change-over switch 5, the cable in the second wiring pipe 12 is also conducted with corresponding interfaces in the second test interface 14 in this way, the working switch 8 is rotated before the measurement is started, thereby disconnecting the insulation joint from the protector, then measuring the first test interface 3 and the second test interface 14 through testing equipment such as a multimeter, rotating the first change-over switch 5 and the second change-over switch 7 to conduct different cables with the test interfaces during measurement, thereby completing the measurement of the insulation performance of the insulation joint, rotating the working switch 8 again to reconnect the insulation joint with the protector after the measurement is finished, dividing the inside of the test box into a plurality of small parts which are convenient to disassemble and assemble by arranging the first junction box 15, the second junction box 16, the third junction box 22, the circuit protection tube 20 and the L-shaped wire tube 17 which are respectively fixed in the protective shell 1 by screws, facilitating the installation and the disassembly of the test box, enabling the ventilation window 2 to play a good ventilation role, enabling the air in the test box to circulate, and enabling the filter screen 18 to filter the air entering from the ventilation window 2, avoid a large amount of dust or mosquito to get into the inside damage that causes electronic components of test box through ventilation window 2, dry piece 19 can absorb the moisture in the inside mobile air of test box, when the inside temperature of test box reachs the setting value, temperature sensor 23 sends the signal of telecommunication to control panel 6, control panel 6 controls radiator fan and rotates, accelerate the flow of the inside air of test box, thereby let the hot-air follow two ventilation window 2 effluviums fast, through setting up sealing door 9 and observation window 10 by the hinge is fixed, can make things convenient for the staff to look over the inside of test box at the test box during operation, when needs maintain and change the inside equipment of test box, only need to open sealing door 9. The top of the test box can be completely opened, a cable 25 required by the test can pass through the wiring tube through the circular through hole to enter the test box, a sealing ring 26 arranged on the outer wall of the top of the circular through hole can seal a gap between the cable 25 and the circular through hole, a plurality of circular through holes can allow a plurality of test cables to enter the test box, so different test requirements of the test box are met, a thread sealing knob can seal the circular through hole which is not used temporarily, when the wiring tube is connected with the L-shaped wire tube 17, the groove frame 27 and the convex block can be clamped together, so that the wiring tube and the L-shaped wire tube 17 are preliminarily positioned, then the wiring tube and the L-shaped wire tube 17 are fixed on the inner wall of the bottom of the protective shell 1 through the connecting block and the screw, the corrugated hose 13 can be correspondingly bent along with the cable, the bent cable cannot be damaged.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides an insulating joint test box for natural gas line maintains detection, including protective housing (1), a serial communication port, protective housing (1) both sides outer wall is provided with first test interface (3) and second test interface (14) respectively, protective housing (1) bottom outer wall four corners position is provided with four supporting legs (4) respectively, protective housing (1) bottom outer wall is opened respectively has two rectangle through-holes, two rectangle through-hole inner walls are provided with first junction box (11) and second junction box (12) respectively, protective housing (1) one side outer wall is provided with first change over switch (5) respectively, second change over switch (7), work switch (8) and control panel (6), protective housing (1) both sides inner wall is fixed with first junction box (15) and second junction box (16) through the screw respectively, first change over switch (5) and second change over switch (7) one side outer wall set up respectively in first junction box (15) and second junction box (16) On, protective housing (1) one side inner wall has third junction box (22) through the screw fixation, third junction box (22) both sides outer wall has two circuit protection tubes (20) through the screw fixation respectively, one side outer wall of two circuit protection tubes (20) is respectively through the screw fixation on one side outer wall of first junction box (15) and second junction box (16), third junction box (22) both sides outer wall has two L type spool (17) through the screw fixation respectively, two L type spool (17) bottom outer walls are respectively through the screw fixation on the top outer wall of first junction box (11) and second junction box (12).

2. The insulation joint test box for the maintenance and detection of the natural gas pipeline is characterized in that two ventilation windows (2) are respectively arranged on the outer walls of two sides of the protective shell (1), a filter screen (18) is arranged on the outer wall of one side of each ventilation window (2), a fixing plate is arranged on the outer wall of the bottom of each filter screen (18), and two drying blocks (19) are respectively arranged on the outer wall of the top of each fixing plate.

3. The insulated joint testing box for the maintenance and detection of the natural gas pipeline is characterized in that two first cooling fans (21) are respectively arranged on the inner wall of one side of the protective shell (1), and a temperature sensor (23) and a second cooling fan (24) are respectively arranged on the outer wall of the bottom of the third junction box (22); the temperature sensor (23), the first cooling fan (21) and the second cooling fan (24) are electrically connected with the control panel (6).

4. The insulated joint testing box for the maintenance and detection of the natural gas pipeline is characterized in that two sealing doors (9) are fixed on the outer wall of the top of the protective shell (1) through hinges respectively, and an observation window (10) is arranged on the outer wall of the top of each sealing door (9).

5. The insulation joint test box for the maintenance and detection of the natural gas pipeline is characterized in that circular through holes are formed in the outer wall of the top of the first junction pipe (11) in an array mode, internal threads are arranged on the inner wall of each circular through hole, more than three cables (25) and more than three thread sealing knobs (28) are arranged on the inner wall of each circular through hole in the array mode, two sealing rings (26) are arranged on the outer walls of the thread sealing knobs (28) and the cables (25), and the first junction pipe (11) and the second junction pipe (12) are identical in structure.

6. The insulation joint test box for the maintenance and detection of the natural gas pipeline is characterized in that the outer walls of the first wiring pipe (11) and the L-shaped wiring pipe (17) are respectively provided with two connecting blocks, four threaded holes are respectively formed in the four corners of the outer wall at the top of each connecting block, a groove frame (27) is formed in the outer wall at the top of each connecting block of the first wiring pipe (11), a protruding block is formed in the outer wall at the bottom of each connecting block of the outer wall at the bottom of the L-shaped wiring pipe (17), and the groove frame (27) and the protruding block are identical in size.

7. The insulated joint test box for the maintenance and detection of the natural gas pipeline is characterized in that the outer walls of the first wiring pipe (11) and the second wiring pipe (12) are respectively provided with two corrugated hoses (13), the top outer wall of each corrugated hose (13) is arranged on the bottom outer wall of the protective shell (1), and each corrugated hose (13) is made of insulating rubber.