CN210893567U - T-shaped splitter and water leakage detection system - Google Patents

Abstract

The utility model is suitable for a cable field provides a T type spliter and detection system that leaks, and this detection system that leaks includes a plurality of detection cables that leak, a plurality of T type spliters and host computer, and to each room that detects, first T line port connects the first end of first metal wire, second T line port connects the first end of second metal wire, third T line port connects the first end of third metal wire, fourth T line port connects the first end of fourth metal wire; a second end of the first metal wire is connected with a second end of the second metal wire, and a second end of the third metal wire is connected with a second end of the fourth metal wire; and the four wire inlet ports of the upper stage T-shaped splitter are correspondingly connected with the four wire outlet ports of the lower stage T-shaped splitter one by one. The water leakage detection system has the advantages of shorter water leakage detection cable, simpler integral wiring and more convenient subsequent maintenance.

Description

T-shaped splitter and water leakage detection system

Technical Field

The utility model belongs to the technical field of the cable, especially, relate to a T type spliter and detecting system that leaks.

Background

At present, various electronic devices are increasingly applied to the production and living fields, such as power plants, equipment rooms, computer rooms, telecommunication rooms, power rooms, building buildings, pipelines and the like, and the staggered distribution of various electric wires can cause potential safety hazards and affect the tidiness and the attractiveness of the use places, so that the electric wires are generally arranged in walls or floors.

Once water leakage occurs in the wall or the floor, the conditions inside the wall and in the floor cannot be visually seen, and dangerous conditions such as electric wire leakage or short circuit are likely to occur, so that the water leakage detection for pipelines, floors and walls is particularly important.

When water leakage is detected, a special water leakage detection line is generally adopted, if only one room needs to detect water leakage on site, the water leakage detection line is simply arranged in the room, and when a plurality of rooms need to detect water leakage, the water leakage detection lines of the rooms need to be cascaded, as shown in fig. 1, the water leakage detection line S is arranged in each room A, B, C, wherein a solid line represents a sensing line in the water leakage detection line S, a dotted line represents a signal line in the water leakage detection line S, the signal line in the room a is connected with the sensing line in the room B, the signal line in the room B is connected with the sensing line in the room C, the cascading wiring mode needs to enable the water leakage detection line S to surround the rooms for one circle, the wiring cost is high, the requirement for maintaining a long cable is also met, and the maintenance cost is increased.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the technical problem that solve is how to lay the detection line that leaks of shorter realization a plurality of room cascade types for the detection that leaks.

In order to solve the above technical problem, in a first aspect, the present invention provides a T-shaped splitter, which is characterized in that the T-shaped splitter has four incoming line ports, four outgoing line ports, and four T-line ports; the first incoming line port is communicated with the first outgoing line port through a signal transmission line, the third incoming line port is communicated with the third outgoing line port through a signal transmission line, the second incoming line port is communicated with the second T-line port through a signal transmission line, and the fourth incoming line port is communicated with the fourth T-line port through a signal transmission line; the first T-line port is communicated with the second wire outlet port through a signal transmission line, and the third T-line port is communicated with the fourth wire outlet port through a signal transmission line.

In a second aspect, the present invention further provides a water leakage detection system, including:

the water leakage detection cables are arranged in a corresponding room to be detected and comprise cable bodies and water absorption layers wrapped outside the cable bodies; the cable body comprises an insulating central axis body, four grooves spirally extending along the length direction are formed in the insulating central axis body, and the grooves are separated by insulating bulges; the first groove and the second groove are oppositely arranged, and the third groove and the fourth groove are oppositely arranged; a first metal wire and a second metal wire are respectively embedded in the first groove and the second groove, a third metal wire and a fourth metal wire are respectively embedded in the third groove and the fourth groove, the outer surfaces of the first metal wire and the second metal wire are respectively wrapped with a conductive plastic layer, and the outer surfaces of the third metal wire and the fourth metal wire are respectively wrapped with a non-conductive plastic layer; the height of the four grooves after being embedded into the corresponding metal wires is lower than that of the insulating bulges;

a plurality of T-shaped splitters as described in the first aspect, each T-shaped splitter corresponding to one room to be detected, for each room to be detected, the first T-wire port being connected to the first end of the first metal wire, the second T-wire port being connected to the first end of the second metal wire, the third T-wire port being connected to the first end of the third metal wire, the fourth T-wire port being connected to the first end of the fourth metal wire; a second end of the first metal wire is connected with a second end of the second metal wire, and a second end of the third metal wire is connected with a second end of the fourth metal wire; four wire inlet ports of the next stage of T-shaped splitter are correspondingly connected with four wire outlet ports of the last stage of T-shaped splitter one by one;

the host machine is provided with four electric signal output terminals which are respectively connected with four wire inlet ports of the first-stage T-shaped splitter in a one-to-one correspondence mode, a first wire outlet port of the last-stage T-shaped splitter is connected to the first electric signal output terminal of the host machine, and a third wire outlet port of the last-stage T-shaped splitter is connected to the third electric signal output terminal of the host machine, so that a loop is formed.

Furthermore, a resistor is connected to a line between the first T-line port and the second wire outlet port of each T-shaped splitter, and a resistor is connected to a line between the third T-line port and the fourth wire outlet port of each T-shaped splitter.

Further, the water absorbing layer is doped with a solute which can form a conductive solution after being dissolved in water.

Furthermore, a flexible metal wire is arranged at the position of the central shaft of the insulated central shaft body.

Further, the water-absorbing layer includes an ultraviolet-proof material.

Further, the ultraviolet-proof material is an ultraviolet-proof coating coated outside the water absorption layer.

Further, the ultraviolet-proof material is an ultraviolet-proof agent doped in the water absorption layer.

Further, the water absorbing layer is a fiber sleeve.

The utility model provides a detection system that leaks adopts T type spliter will lay and detect the cable cascade in each leaking of waiting to detect the room, and wait to detect the room at every and only need lay a leak detection cable can, should leak detection cable needn' T encircle room a week and just can draw forth to wait to detect the room to the next, therefore required leak detection cable is shorter, and the whole wiring is simpler, and follow-up maintenance is also more convenient.

Drawings

FIG. 1 is a block diagram of a water leak detection system for a plurality of rooms to be detected provided by the prior art;

fig. 2 is a structural diagram of a T-shaped splitter according to a first embodiment of the present invention;

fig. 3 is a structural diagram of a water leakage detection system according to a second embodiment of the present invention;

fig. 4 is a structural view of a water leakage detection cable according to a second embodiment of the present invention;

fig. 5 is a cross-sectional view of a water leakage detection cable according to a second embodiment of the present invention;

fig. 6 is an equivalent detection schematic diagram of a water leakage detection cable for a single room according to a second embodiment of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

The utility model discloses the structural design of T type spliter that first embodiment provided is shown IN fig. 2, has four incoming line ports IN1-IN4, four outlet port OUT1-OUT4, four T line ports T1-T4, and from the position distribution of three group's ports, form "T" type distribution between three group's ports, consequently the utility model discloses IN name T type spliter.

A plurality of signal transmission lines D are further arranged IN the T-shaped splitter, wherein the first line inlet port IN1 and the first line outlet port OUT1 are directly communicated through the signal transmission lines D, the third line inlet port IN3 and the third line outlet port OUT3 are directly communicated through the signal transmission lines D, the second line inlet port IN2 and the second T-line port T2 are communicated through the signal transmission lines D, and the fourth line inlet port IN4 and the fourth T-line port T4 are communicated through the signal transmission lines D. The first T-line port T1 is connected to the second OUT-line port OUT2 by a signal transmission line D, and the third T-line port T3 is connected to the fourth OUT-line port OUT4 by a signal transmission line D. The signal transmission line D may enable transmission of electrical signals between corresponding ports.

The utility model discloses the second embodiment provides a detection system leaks, as shown in fig. 3, including a plurality of detection cable S that leak, a plurality of T type spliter T and host computer as first embodiment, wherein, every detection cable S that leaks is used for laying and treats the room in a correspondence, every T type spliter is connected with the detection cable S that leaks that should treat the room to treat the room corresponding to one, and the host computer is then responsible for producing the signal of telecommunication as detection system' S core to judge whether there is leakage according to the signal of telecommunication that detects.

Specifically, as shown in fig. 4 and 5, the water leakage detection cable S includes a cable body 1 and a water absorption layer 2 wrapped outside the cable body 1, the cable body 1 includes an insulating central axial line body, the insulating central axial line body is provided with a first groove 11, a second groove 12, a third groove 13 and a fourth groove 14 which extend spirally along a length direction, the grooves are separated by an insulating protrusion 15, and the insulating protrusion 15 also extends spirally along the length direction of the insulating central axial line body. The first groove 11 and the second groove 12 are oppositely arranged, and the third groove 13 and the fourth groove 14 are oppositely arranged. First metal wires 1611 and second metal wires 1621 are embedded in the first groove 11 and the second groove 12 respectively, third metal wires 1631 and fourth metal wires 1641 are embedded in the third groove 13 and the fourth groove 14 respectively, a conductive plastic layer 1612 is wrapped on the outer surface of the first metal wires 1611, a conductive plastic layer 1622 is wrapped on the outer surface of the second metal wires 1621, a non-conductive plastic layer 1632 is wrapped on the outer surface of the third metal wires 1631, a non-conductive plastic layer 1642 is wrapped on the outer surface of the fourth metal wires 1641, and the unit-length resistances of the four metal wires are precisely processed and are constant. The height of the four grooves after being embedded in the corresponding metal lines is lower than that of the insulating protrusions 15. In fig. 3, the four metal wires led out from left to right at both ends of the water leakage detection cable S are respectively represented by a first metal wire 1611, a second metal wire 1621, a third metal wire 1631 and a fourth metal wire 1641.

The outside of cable body 1 sets up after layer 2 that absorbs water, even when will detect the cable and place on metal ground, two wrap up in the metal wire that covers conductive plastic layer also can not with metal direct contact, just can not be because of the contact metal short circuit between the two naturally, and because the metal wire is embedded in the recess of insulating axis line body, wrap up in two and cover through insulating protruding 15 between the recess and wrap up in the metal wire that covers non-conductive plastic layer between the metal wire that covers conductive plastic layer and isolated, even when will detect the cable and place when doing the lightning protection/prevent electrostatic treatment, high temperature or dust also hardly will short circuit between the two, the probability of wrong report is effectively reduced.

Considering that pure water may be used in a water leakage situation, such as a semiconductor factory such as a chip, etc., which may not conduct electricity due to no carriers and may not normally detect water leakage and thus give a leakage alarm, it is preferable that a solute, such as sodium chloride, potassium hydroxide, sodium carbonate, etc., which may form a conductive solution after being dissolved in water, is doped in the water-absorbing layer 2, and when the water-absorbing layer 2 absorbs water, the doped solute may be dissolved and a conductive solution may be formed, and since the first metal wire 1611 and the second metal wire 1621 are located inside the water-absorbing layer 2, the coated conductive plastic layers 1612 and 1622 may be in direct contact with the conductive solution, and the first metal wire 1611 and the second metal wire 1621 are short-circuited by the conductive solution, so that water leakage may be normally detected.

In addition, considering that sometimes water leakage may need to be detected in an open air environment, the detection cable needs to be placed outdoors and is easy to age after being irradiated by ultraviolet light, and then breaks or damages, and the service life is affected, therefore, the water absorption layer 2 may further include an ultraviolet-proof material, which may be specifically implemented in two ways, one is to coat an ultraviolet-proof coating on the outside of the water absorption layer 2, and the other is to directly dope an ultraviolet-proof agent in the water absorption layer 2. Through the blocking or ultraviolet absorption of the ultraviolet-proof material, the metal wires in the detection cable cannot be aged, and the service life is prolonged.

Above-mentioned layer 2 that absorbs water can adopt the fibre cover to realize, works as the utility model provides a when the detection cable that leaks is used in long distance or crooked pipeline, the fibre cover also can increase vertical tensile resistance, when by the pulling, is unlikely to unable bearing pulling force and fracture or damage. When the cable is applied to an environment containing sharp objects such as sand and stones, the fiber sleeve can also protect the cable body 1 from being scratched by the sand and stones and the like.

In addition, the position of the central shaft of the insulated central shaft body is also provided with a flexible metal wire 17, so that the overall flexibility of the cable can be increased, and the flexible metal wire 17 can be a copper wire.

For the T-branch of each room to be tested, a first T-line port T1 is connected to the first end of the first metal wire 1611, a second T-line port T2 is connected to the first end of the second metal wire 1621, a third T-line port T3 is connected to the first end of the third metal wire 1631, and a fourth T-line port T4 is connected to the first end of the fourth metal wire 1641. A second end of the first metal line 1611 is connected to a second end of the second metal line 1621, and a second end of the third metal line 1631 is connected to a second end of the fourth metal line 1641. The four wire inlet ports OUT1-4 of the next stage T-branch are connected with the four wire outlet ports IN1-4 of the previous stage T-branch IN a one-to-one correspondence, that is, the first wire inlet port IN1 of the next stage is connected with the first wire outlet port OUT1 of the previous stage, the second wire inlet port IN2 of the next stage is connected with the second wire outlet port OUT2 of the previous stage, the third wire inlet port IN3 of the next stage is connected with the third wire outlet port OUT3 of the previous stage, and the fourth wire inlet port IN4 of the next stage is connected with the fourth wire outlet port OUT4 of the previous stage.

For the host, four electrical signal output terminals are provided, and are respectively connected with four incoming line ports IN1-IN4 of the first stage T-shaped splitter IN a one-to-one correspondence manner, the first outgoing line port OUT1 of the last stage T-shaped splitter is connected to the first electrical signal output terminal of the host, and the third outgoing line port OUT3 of the last stage T-shaped splitter is connected to the third electrical signal output terminal of the host, so that a loop is formed.

Fig. 6 shows the equivalent detection principle of the water leakage detection cable of a single room, and since the impedance of the four metal wires of the water leakage detection cable is fixed, a set of electrical parameters measured by the host computer can be used as a reference when there is no water leakage. When water leakage occurs, the first metal wire 1611 and the second metal wire 1621 are short-circuited, all of the first metal wire 1611, the second metal wire 1621 and the fourth metal wire 1641 in fig. 6 do not participate in voltage division, the impedance of the whole loop is reduced, the electrical parameter measured by the host changes, the host calculates the effective lengths of the first metal wire 1611 and the second metal wire 1621 according to the ohm's law, and the position of a fault leakage point can be obtained.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims (9)

1. A T-shaped splitter is characterized by comprising four wire inlet ports, four wire outlet ports and four T-wire ports; the first incoming line port is communicated with the first outgoing line port through a signal transmission line, the third incoming line port is communicated with the third outgoing line port through a signal transmission line, the second incoming line port is communicated with the second T-line port through a signal transmission line, and the fourth incoming line port is communicated with the fourth T-line port through a signal transmission line; the first T-line port is communicated with the second wire outlet port through a signal transmission line, and the third T-line port is communicated with the fourth wire outlet port through a signal transmission line.

2. A water leak detection system, comprising:

the water leakage detection cables are arranged in a corresponding room to be detected and comprise cable bodies and water absorption layers wrapped outside the cable bodies; the cable body comprises an insulating central axis body, four grooves spirally extending along the length direction are formed in the insulating central axis body, and the grooves are separated by insulating bulges; the first groove and the second groove are oppositely arranged, and the third groove and the fourth groove are oppositely arranged; a first metal wire and a second metal wire are respectively embedded in the first groove and the second groove, a third metal wire and a fourth metal wire are respectively embedded in the third groove and the fourth groove, the outer surfaces of the first metal wire and the second metal wire are respectively wrapped with a conductive plastic layer, and the outer surfaces of the third metal wire and the fourth metal wire are respectively wrapped with a non-conductive plastic layer; the height of the four grooves after being embedded into the corresponding metal wires is lower than that of the insulating bulges;

a plurality of T-shaped splitters as claimed in claim 1, each T-shaped splitter corresponding to a room to be tested, for each room to be tested, the first T-wire port being connected to the first end of the first metal wire, the second T-wire port being connected to the first end of the second metal wire, the third T-wire port being connected to the first end of the third metal wire, the fourth T-wire port being connected to the first end of the fourth metal wire; a second end of the first metal wire is connected with a second end of the second metal wire, and a second end of the third metal wire is connected with a second end of the fourth metal wire; four wire inlet ports of the next stage of T-shaped splitter are correspondingly connected with four wire outlet ports of the last stage of T-shaped splitter one by one;

the host machine is provided with four electric signal output terminals which are respectively connected with four wire inlet ports of the first-stage T-shaped splitter in a one-to-one correspondence mode, a first wire outlet port of the last-stage T-shaped splitter is connected to the first electric signal output terminal of the host machine, and a third wire outlet port of the last-stage T-shaped splitter is connected to the third electric signal output terminal of the host machine, so that a loop is formed.

3. The water leak detection system of claim 2, wherein a resistor is connected in line between the first T-wire port and the second outlet port of each T-branch, and a resistor is connected in line between the third T-wire port and the fourth outlet port of each T-branch.

4. The water leak detection system of claim 2, wherein said water-absorbing layer is doped with a solute that forms a conductive solution when dissolved in water.

5. The water leak detection system of claim 2, wherein a flexible metal wire is disposed at a position of a central axis of said insulating central axis body.

6. The water leak detection system of claim 2, wherein said water absorbent layer comprises an ultraviolet resistant material.

7. The water leak detection system of claim 6, wherein said uv-blocking material is a uv-blocking coating applied to the exterior of said water-absorbent layer.

8. The water leak detection system of claim 6, wherein said uv-blocking material is a uv-blocking agent doped in said water-absorbing layer.

9. The water leak detection system of any one of claims 2 to 8, wherein said water absorbent layer is a fabric sheath.

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