CN109802353A - A kind of cable intermediate joint protecting box - Google Patents
A kind of cable intermediate joint protecting box Download PDFInfo
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- CN109802353A CN109802353A CN201910076221.XA CN201910076221A CN109802353A CN 109802353 A CN109802353 A CN 109802353A CN 201910076221 A CN201910076221 A CN 201910076221A CN 109802353 A CN109802353 A CN 109802353A
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- routing inspection
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Abstract
The present invention relates to cable intermediate joint protective devices, more specifically, it is related to a kind of cable intermediate joint protecting box, its key points of the technical solution are that: including cylindrical shell and the sealing ring for being set to shell both ends, it is characterized by: the routing inspection trolley for back and forth walking along shell length direction is arranged in the shell, be provided on the routing inspection trolley for detect shell both ends whether the water sensor of leak, the placed cavity for placing sealing agent is provided in the routing inspection trolley, the detection signal in response to water sensor is provided in the routing inspection trolley, so that the sealing agent in placed cavity flow to the control valve at leak.A kind of cable intermediate joint protecting box of the invention has the advantages that improve protecting box waterproof performance.
Description
Technical field
The present invention relates to cable intermediate joint protective devices, more specifically, it relates to which a kind of cable intermediate joint is protected
Box.
Background technique
With the development of urban construction, cable transmission line is using more and more extensive.The transition joint of cable makes for a long time
It is easy the problems such as generating sparking, short circuit because of aging or even exploding in, economic loss is caused even to threaten sometimes
Pacify to personal life.Currently, existing a variety of cable explosion-proof protecting box in the market, including iron-clad, glass reinforced plastic, although it has
Certain degree of hardness, but than cumbersome, insulativity, fire-retardant degree, anti-impact force, waterproof effect etc. all have deficiency.
Currently, retrieving the Chinese patent that notification number is 203632197 U of CN, to disclose a kind of cable intermediate joint explosion-proof
Protecting box, its key points of the technical solution are that: it can be docked including two, in the shell of semi-cylindrical, its both ends of the shell are provided with
Necking part, the necking part offer the through-hole for passing through cable, and the shell middle section and both ends are correspondingly arranged on several
Binding groove, by be located at the binding groove in dead ring dock fix, be provided between the shell and cable it is fire-retardant every
Thermosphere, its inner wall of the through-hole are in grooving shape, and sealing ring is arranged inside.
Since cable connector is typically mounted at cable duct, in cable tunnel, often there is ponding, if protecting box carry out it is multiple
Dismounting maintenance cable connector influences the leakproofness or sealing ring aging of sealing ring, leads to the non-water-tight problem of protecting box.
Summary of the invention
In view of the deficiencies of the prior art, the present invention intends to provide a kind of cable intermediate joint protecting box, tool
The advantages of being improved protecting box waterproof performance.
Above-mentioned technical purpose of the invention has the technical scheme that a kind of cable intermediate joint protection
Box is arranged in the shell for along shell length direction including cylindrical shell and the sealing ring for being set to shell both ends
The routing inspection trolley back and forth walked, be provided on the routing inspection trolley for detect shell both ends whether the water sensor of leak,
It is provided with the placed cavity for placing sealing agent in the routing inspection trolley, is provided in the routing inspection trolley and is sensed in response to water logging
The detection signal of device, so that the sealing agent in placed cavity flow to the control valve at leak.
By using above-mentioned technical proposal, the water sensor on routing inspection trolley back and forth walked in shell is to shell two
End detects whether leak, after water sensor detects the sealing ring leak at shell both ends, issues detection signal control control
Valve processed is opened, so that the sealing agent in placed cavity be made to drop down at leak, is carried out due to sealing agent water-swellable to sealing ring
Leak stopping, to improve the waterproof effect of protecting box.
The present invention is further arranged to: the routing inspection trolley includes the wheel and driving vehicle of car body, setting on the car body
The micro-machine of rotation is taken turns, the car body is arranged in cylindrical body, and the car body axially offers the relief hole that current supply cable passes through.
By using above-mentioned technical proposal, the relief hole passed through by opening up current supply cable on the car body of cylindrical body, thus
Trolley is facilitated to walk along shell length direction.
The present invention is further arranged to: the car body circle spacing is provided with multiple directive wheels.
By using above-mentioned technical proposal, by the way that multiple guide rollers of car body axial direction are arranged in, to increase routing inspection trolley
The stability of walking.
The present invention is further arranged to: the control valve includes electromagnet and valve plate, and the valve plate is made of magnetic material,
The car body side wall offers the discharge port communicated with placed cavity, and the valve plate is plugged on discharge outlet, the electromagnet vertically
Above valve plate, detection signal of the electromagnet in response to water sensor.
By using above-mentioned technical proposal, after water sensor detects sealing ring leak, work of electromagnet, thus by valve
Plate is pull-in on electromagnet, and then opens discharge port, so that the sealing agent in placed cavity be dropped down at leak, is had and is facilitated and will block up
The advantages of leakage agent is added at leak.
The present invention is further arranged to: the water sensor and control valve are respectively provided with two, two water logging sensings
Device and control valve are separately positioned on two end side side walls of routing inspection trolley, and two water sensors are respectively used to control two
Control valve.
By using above-mentioned technical proposal, two water sensors be respectively used to detection shell both ends whether leak, thus
Two control valves are controlled respectively to open, and waterproofing and leakage-stopping is carried out to shell both ends.
The present invention is further arranged to: is provided on the routing inspection trolley for controlling routing inspection trolley along shell length direction
The control device back and forth walked, the control device include the first normally opened travel switch, the second normally opened travel switch and control
Circuit, first normally opened contact switch and the second normally opened contact switch are separately positioned on car body both ends side wall, and with shell two
The sealing ring at end, which contradicts, closes, and the control circuit is electrically connected with timer.
By using above-mentioned technical proposal, worked by timer timing controlled control circuit, thus timing controlled inspection
Trolley work, to improve the service life of routing inspection trolley and save electric energy.
The present invention is further arranged to: the control circuit includes switching circuit and driving circuit；The switching circuit packet
Include the first normally opened contact of triode Q, the first relay KM1, the second relay KM2, third relay KM3, the first relay
Switch KM1-1, the first normally opened contact switch KM2-1 of the second relay, third relay the first normally-closed contact switch KM3-1
And the second normally-closed contact switch KM3-2 of third relay, the base stage electric connection of the timer and triode Q are described
The collector of triode Q is electrically connected with the power supply, and the emitter of the triode Q is grounded after connecting with the first relay KM1, institute
After the first normally opened contact switch KM1-1 for stating the first relay connects with the first normally-closed contact switch KM3-1 of third relay
It is in parallel with triode Q；Described first normally opened travel switch one end is electrically connected with the power supply, and the other end and the second relay KM2 go here and there
It is grounded after connection, the first normally opened contact switch KM2-1 of second relay and the second normally-closed contact of third relay switch
It is in parallel with the first normally opened travel switch after KM3-2 series connection；Described second normally opened travel switch one end is electrically connected with the power supply, another
End is grounded after connecting with third relay KM3；
The driving circuit includes the positive input circuit for rotating forward micro-machine and the reversed input for inverting micro-machine electricity
Road；Positive input circuit includes the second normally opened contact switch KM1- of two the first relays for being series at micro-machine both ends respectively
2 and third normally opened contact switch KM1-3, the 4th normally-closed contact switch KM2-4 of the second relay and the 5th normally-closed contact switch
KM2-5；Reversed input circuit includes the second normally opened contact switch of two the second relays for being series at micro-machine both ends respectively
KM2-2 and third normally opened contact switch KM2-3.
By using above-mentioned technical proposal, triode Q is connected in timer timing, and then it is electric to obtain the first relay KM1,
It is closed the first normally opened contact switch KM1-1 of the first relay being connected in parallel on triode Q, realizes the self-locking of circuit, simultaneously
Make the second normally opened contact switch KM1-2 of the first relay on main circuit and the third normally opened contact switch of the first relay
KM1-3 closure, is connected micro-machine forward direction input circuit, and the shaft of micro-machine rotates forward, and routing inspection trolley is moved to shell one end
It is dynamic；
When on routing inspection trolley the first normally opened travel switch and sealing ring contradict after closure, the second relay KM2 obtains electric, makes and the
First normally opened contact switch KM2-1 of the second relay of one normally opened travel switch parallel connection is closed, and makes have the first normally opened stroke to open
The circuit of pass realizes the 4th normally-closed contact switch KM2-4 and 5 constant virtues self-locking, while that make the second relay on driving circuit
Closed contact switch KM2-5 is disconnected, and makes the second normally opened contact switch KM2-2 and third normally opened contact switch KM2- of the second relay
3 closures, and then micro-machine forward direction input circuit is disconnected, the reversed input circuit conducting of micro-machine, the shaft of micro-machine
Reversion, to keep routing inspection trolley mobile to the other end；
When the second normally opened travel switch closure on routing inspection trolley, third relay KM3 obtains electric, makes to be connected in parallel on triode Q
Third relay the first normally-closed contact switch KM3-1 disconnect, the third relay being connected in parallel on the first normally opened travel switch
The second normally-closed contact switch KM3-2 disconnect, and then power off the first relay KM1 and the second relay KM2, micro-machine stops
It only works, is automatically performed the reciprocal inspection an of routing inspection trolley.
The present invention is further arranged to: the electric current being provided in the shell for powering to micro-machine and electromagnet is mutual
Sensor, current transformer and the intracorporal cable of shell are electrically connected, and the current transformer is electrically connected by electric wire with routing inspection trolley
It connects.
By using above-mentioned technical proposal, current transformer carries out cable to take electricity, to facilitate the work of routing inspection trolley.
In conclusion the invention has the following advantages: past in shell by timer timing controlled routing inspection trolley
Multiple walking, so that leak is detected whether to shell both ends by the water sensor on routing inspection trolley, when water sensor is examined
After the sealing ring leak for measuring shell both ends, issues detection signal control control valve and open, to make the sealing agent in placed cavity
It drops down at leak, since sealing agent water-swellable is to carry out leak stopping to sealing ring, to improve the waterproof effect of protecting box.
Detailed description of the invention
Fig. 1 is the overall structure diagram of shell in the present embodiment；
Fig. 2 is that routing inspection trolley is located at the intracorporal partial structure diagram of shell in the present embodiment；
Fig. 3 be in the present embodiment routing inspection trolley along the structural schematic diagram of placed cavity cross-section；
Fig. 4 is the circuit diagram of inspection control circuit in the present embodiment.
In figure: 1, shell；2, sealing ring；3, mounting shell；4, mounting ear；5, water sensor；6, placed cavity；7, car body；
8, wheel；9, micro-machine；10, relief hole；11, directive wheel；12, electromagnet；13, valve plate；14, discharge port；15, mounting groove；
16, the first normally opened travel switch；17, the second normally opened travel switch；18, control circuit；19, switching circuit；20, driving circuit；
21, timer.
Specific embodiment
With reference to the accompanying drawings and examples, the present invention will be described in detail.
A kind of cable intermediate joint protecting box, as shown in Figure 1, including cylindrical shell 1 and being set to 1 both ends of shell
Sealing ring 2, shell 1 include that the mounting shell 3 of two semi-cylindricals forms, and the edge axially spaced-apart of two mounting shells 3 is provided with more
A corresponding mounting ear 4 is bolted to connection between two corresponding mounting ears 4.
As shown in Figures 2 and 3, it is provided with the routing inspection trolley for back and forth walking along 1 length direction of shell in shell 1, patrols
Be provided on inspection trolley for detect 1 both ends of shell whether the water sensor 5 of leak, be provided with for placing in routing inspection trolley
The placed cavity 6 of sealing agent is provided with the detection signal in response to water sensor 5 in routing inspection trolley, so that stifled in placed cavity 6
Leakage agent flow to the control valve at leak.
As shown in Figure 2 and Figure 4, routing inspection trolley includes 8 turns of wheel of car body 7, the wheel being arranged on car body 78 and driving
Dynamic micro-machine 9, car body 7 are arranged in cylindrical body, and car body 7 is axial to offer the relief hole 10 that current supply cable passes through, by circle
The relief hole 10 that current supply cable passes through is opened up on the car body 7 of cylinder, so that trolley be facilitated to walk along 1 length direction of shell.Car body 7
Circle spacing is provided with multiple directive wheels 11.Directive wheel 11 is in contact with 1 internal side wall of shell, axial in car body 7 by setting
Multiple guide rollers, thus increase routing inspection trolley walking stability.
As shown in figure 3, control valve includes electromagnet 12 and valve plate 13, valve plate 13 is made of magnetic material, and 7 side wall of car body is opened
Equipped with the discharge port 14 communicated with placed cavity 6, valve plate 13 is plugged on vertically at discharge port 14, and electromagnet 12 is located on valve plate 13
Side, detection signal of the electromagnet 12 in response to water sensor 5.After water sensor 5 detects 2 leak of sealing ring, electromagnet
12 work so that valve plate 13 is pull-in on electromagnet 12, and then open discharge port 14, thus by the sealing agent in placed cavity 6
It drops down at leak, has the advantages that facilitate sealing agent is added at leak.Specifically, being located at the placed cavity 6 at discharge port 14
Cavity wall offers the mounting groove 15 for 13 activity grafting of valve plate vertically, and electromagnet 12 is installed on the cell wall of mounting groove 15, and position
Above valve plate 13.
As shown in Figures 2 and 3, specifically, water sensor 5 and control valve are respectively provided with two, two 5 Hes of water sensor
Control valve is separately positioned on two end side side walls of routing inspection trolley, and two water sensors 5 are respectively used to two control valves of control.
The downside side wall at routing inspection trolley both ends is arranged in water sensor 5, to improve the sensitivity of the detection of water sensor 5.Two
Water sensor 5 be respectively used to detection 1 both ends of shell whether leak, opened to control two control valves respectively, to 1 liang of shell
End carries out waterproofing and leakage-stopping.
Such as Fig. 3 and Fig. 4, it is provided on routing inspection trolley and back and forth walks for controlling routing inspection trolley along 1 length direction of shell
Control device, control device include the first normally opened travel switch 16, the second normally opened travel switch 17 and control circuit 18, first
Normally opened contact switch and the second normally opened contact switch are separately positioned on 7 both ends side wall of car body, and the sealing ring 2 with 1 both ends of shell
It contradicts and closes, control circuit 18 is electrically connected with timer 21.It is worked by 1 timing controlled control circuit 18 of timer 2, thus
Timing controlled routing inspection trolley work, to improve the service life of routing inspection trolley and save electric energy.
As shown in figure 4, control circuit 18 includes switching circuit 19 and driving circuit 20；Switching circuit 19 include triode Q,
First relay KM1, the second relay KM2, third relay KM3, the first relay the first normally opened contact switch KM1-1,
First normally opened contact switch KM2-1 of the second relay, the first normally-closed contact switch KM3-1 of third relay and third after
The base stage of second normally-closed contact switch KM3-2 of electric appliance, timer 21 and triode Q are electrically connected, the collector of triode Q with
Power supply is electrically connected, and the emitter of triode Q is grounded after connecting with the first relay KM1, the normally opened touching of the first of the first relay
Point switch KM1-1 is in parallel with triode Q after connecting with the first normally-closed contact switch KM3-1 of third relay；First normally opened row
16 one end Cheng Kaiguan is electrically connected with the power supply, and the other end is grounded after connecting with the second relay KM2, and the first of the second relay is often
Open after contact switch KM2-1 connects with the second normally-closed contact switch KM3-2 of third relay with the first normally opened travel switch 16
It is in parallel；Second normally opened 17 one end of travel switch is electrically connected with the power supply, and the other end is grounded after connecting with third relay KM3；It drives
Dynamic circuit 20 includes the positive input circuit for rotating forward micro-machine 9 and the reversed input circuit for making the reversion of micro-machine 9；It is positive
Input circuit includes the second normally opened contact switch KM1-2 and of two the first relays for being series at 9 both ends of micro-machine respectively
The 4th normally-closed contact switch KM2-4 and the 5th normally-closed contact switch KM2-5 of three normally opened contact switch KM1-3, the second relay；
Reversed input circuit includes the second normally opened contact switch KM2-2 of two the second relays for being series at 9 both ends of micro-machine respectively
With third normally opened contact switch KM2-3.
Triode Q is connected in 1 timing of timer 2, and then it is electric to obtain the first relay KM1, makes to be connected in parallel on triode Q
First normally opened contact switch KM1-1 of the first relay is closed, and realizes the self-locking of circuit, while making the first relay on main circuit
Second normally opened contact switch KM1-2 of device and the third normally opened contact switch KM1-3 closure of the first relay, make micro-machine 9
Positive input circuit conducting, the shaft of micro-machine 9 rotate forward, and routing inspection trolley is mobile to 1 one end of shell；When on routing inspection trolley
After one normally opened travel switch 16 contradicts closure with sealing ring 2, the second relay KM2 obtains electric, makes and the first normally opened travel switch 16
The first normally opened contact switch KM2-1 closure of second relay in parallel, realizes the circuit for having the first normally opened travel switch 16
It is self-locking, while making the 4th normally-closed contact switch KM2-4 and the 5th normally-closed contact switch of the second relay on driving circuit 20
KM2-5 is disconnected, and is closed the second normally opened contact switch KM2-2 and third normally opened contact switch KM2-3 of the second relay, in turn
The positive input circuit of micro-machine 9 is disconnected, the conducting of the reversed input circuit of micro-machine 9, the shaft reversion of micro-machine 9, from
And keep routing inspection trolley mobile to the other end；When the second normally opened travel switch 17 closure on routing inspection trolley, third relay KM3
Must be electric, the first normally-closed contact switch KM3-1 of the third relay being connected in parallel on triode Q is disconnected, it is normally opened to be connected in parallel on first
Second normally-closed contact switch KM3-2 of the third relay on travel switch 16 is disconnected, and then makes the first relay KM1 and second
Relay KM2 power-off, micro-machine 9 stop working, and are automatically performed the reciprocal inspection an of routing inspection trolley.
As shown in Figure 3 and Figure 4, the current transformer for powering to micro-machine 9 and electromagnet 12 is provided in shell 1
(not shown), and current transformer can pass through the relief hole 10 of routing inspection trolley.Cable in current transformer and shell 1
It is electrically connected, current transformer is electrically connected by electric wire and routing inspection trolley, so that the routing inspection trolley of walking be made to supply by electric wire
Electricity.Current transformer carries out cable to take electricity, thus the convenient walking to routing inspection trolley power supply and routing inspection trolley.
The course of work: the water sensor 5 on the routing inspection trolley back and forth walked in shell 1, which detects 1 both ends of shell, is
No leak, after water sensor 5 detects 2 leak of sealing ring at 1 both ends of shell, issues detection signal control control valve and beat
It opens, thus drop down onto the sealing agent in placed cavity 6 at leak, since sealing agent water-swellable is to carry out leak stopping to sealing ring,
To improve the waterproof effect of protecting box.
The above is only a preferred embodiment of the present invention, protection scope of the present invention is not limited merely to above-mentioned implementation
Example, all technical solutions belonged under thinking of the present invention all belong to the scope of protection of the present invention.It should be pointed out that for the art
Those of ordinary skill for, several improvements and modifications without departing from the principles of the present invention, these improvements and modifications
It should be regarded as protection scope of the present invention.
Claims (8)
1. a kind of cable intermediate joint protecting box, including cylindrical shell (1) and it is set to the sealing ring at shell (1) both ends
(2), it is characterised in that: the routing inspection trolley for back and forth walking along shell (1) length direction, institute are provided in the shell (1)
State be provided on routing inspection trolley for detect shell (1) both ends whether the water sensor (5) of leak, set in the routing inspection trolley
It is equipped with the placed cavity (6) for placing sealing agent, the detection letter in response to water sensor (5) is provided in the routing inspection trolley
Number, so that the sealing agent in placed cavity (6) flow to the control valve at leak.
2. a kind of cable intermediate joint protecting box according to claim 1, it is characterised in that: the routing inspection trolley includes vehicle
The micro-machine (9) of body (7), the wheel (8) being arranged on car body (7) and driving wheel (8) rotation, the car body (7) are in
Cylindrical body setting, the car body (7) axially offer the relief hole (10) that current supply cable passes through.
3. a kind of cable intermediate joint protecting box according to claim 2, it is characterised in that: between car body (7) circumference
Every being provided with multiple directive wheels (11).
4. a kind of cable intermediate joint protecting box according to claim 2, it is characterised in that: the control valve includes electromagnetism
Iron (12) and valve plate (13), the valve plate (13) are made of magnetic material, and car body (7) side wall offers and placed cavity (6)
The discharge port (14) communicated, the valve plate (13) are plugged on vertically at discharge port (14), and the electromagnet (12) is located at valve plate
(13) top, detection signal of the electromagnet (12) in response to water sensor (5).
5. a kind of cable intermediate joint protecting box according to claim 4, it is characterised in that: the water sensor (5)
Two are respectively provided with control valve, two water sensors (5) and control valve are separately positioned on two end side sides of routing inspection trolley
Wall, and two water sensors (5) are respectively used to two control valves of control.
6. a kind of cable intermediate joint protecting box according to claim 2, it is characterised in that: be arranged on the routing inspection trolley
There is the control device back and forth walked for controlling routing inspection trolley along shell (1) length direction, the control device includes first normal
Open travel switch (16), the second normally opened travel switch (17) and control circuit (18), first normally opened contact switch and
Two normally opened contact switch are separately positioned on car body (7) both ends side wall, and contradict and close with the sealing ring (2) at shell (1) both ends, institute
It states control circuit (18) and is electrically connected with timer (21).
7. a kind of cable intermediate joint protecting box according to claim 6, it is characterised in that: control circuit (18) packet
Include switching circuit (19) and driving circuit (20)；The switching circuit (19) include triode Q, the first relay KM1, second after
Electric appliance KM2, third relay KM3, the first normally opened contact switch KM1-1 of the first relay, the second relay it is first normally opened
The second normally-closed contact of contact switch KM2-1, the first normally-closed contact switch KM3-1 of third relay and third relay are opened
KM3-2, the base stage electric connection of the timer (21) and triode Q are closed, the collector of the triode Q electrically connects with power supply
It connects, the emitter of the triode Q is grounded after connecting with the first relay KM1, the first normally opened contact of first relay
Switch KM1-1 is in parallel with triode Q after connecting with the first normally-closed contact switch KM3-1 of third relay；Described first is normally opened
Travel switch (16) one end is electrically connected with the power supply, and the other end is grounded after connecting with the second relay KM2, second relay
The first normally opened contact switch KM2-1 connect with the second normally-closed contact switch KM3-2 of third relay after with the first normally opened row
Cheng Kaiguan (16) is in parallel；Described second normally opened travel switch (17) one end is electrically connected with the power supply, the other end and third relay
It is grounded after KM3 series connection；
The driving circuit (20) includes the positive input circuit for rotating forward micro-machine (9) and inverts micro-machine (9)
Reversed input circuit；The second of the first relays that positive input circuit is series at micro-machine (9) both ends including two respectively is often
Open contact switch KM1-2 and third normally opened contact switch KM1-3, the 4th normally-closed contact switch KM2-4 of the second relay and
Five normally-closed contact switch KM2-5；Reversed input circuit includes two the second relays for being series at micro-machine (9) both ends respectively
Second normally opened contact switch KM2-2 and third normally opened contact switch KM2-3.
8. a kind of cable intermediate joint protecting box according to claim 4, it is characterised in that: setting in the shell (1)
There are the current transformer for powering to micro-machine (9) and electromagnet (12), the cable electricity in current transformer and shell (1)
Property connection, the current transformer is electrically connected by electric wire and routing inspection trolley.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910076221.XA CN109802353B (en) | 2019-01-26 | 2019-01-26 | Cable intermediate head protection box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910076221.XA CN109802353B (en) | 2019-01-26 | 2019-01-26 | Cable intermediate head protection box |
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| CN109802353A true CN109802353A (en) | 2019-05-24 |
| CN109802353B CN109802353B (en) | 2020-07-03 |
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| CN201910076221.XA Active CN109802353B (en) | 2019-01-26 | 2019-01-26 | Cable intermediate head protection box |
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| KR101937273B1 (en) * | 2017-03-08 | 2019-01-10 | 김진국 | Tube valve, system of controlling sewage amount using the same, and system of detecting leakage of intercepting pipeline |
| CN207960629U (en) * | 2017-12-04 | 2018-10-12 | 西安科技大学 | A kind of emergent water blocking device of gushing water |
| CN108730673A (en) * | 2018-07-19 | 2018-11-02 | 大连海事大学 | A kind of pipeline automatic leakage-blocking equipment |
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