CN207598643U - A kind of drainage vehicle extension tube and sealing ring interlock protection mechanism - Google Patents
A kind of drainage vehicle extension tube and sealing ring interlock protection mechanism Download PDFInfo
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- CN207598643U CN207598643U CN201721258718.6U CN201721258718U CN207598643U CN 207598643 U CN207598643 U CN 207598643U CN 201721258718 U CN201721258718 U CN 201721258718U CN 207598643 U CN207598643 U CN 207598643U
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- telescoping tube
- sealing ring
- control circuit
- solenoid valve
- relay
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Abstract
The utility model discloses a kind of drainage vehicle extension tubes and sealing ring interlock protection mechanism; including telescoping tube, sealing ring, telescoping tube control circuit, sealing ring control circuit and relay; telescoping tube control circuit is used to controlling stretching/withdrawal of telescoping tube, and sealing ring control circuit is used to controlling the inflation of sealing ring/lose heart；Sealing ring control circuit includes sealing ring switch and the first solenoid valve, relay includes relay coil and relay normally closed contact, relay coil is arranged in parallel with the first solenoid valve, relay normally closed contact is set to total road of telescoping tube control circuit, and relay coil is used to control relay normally closed contact cut-off/close；By in sealing ring control circuit, setting the mode of relay coil, to control the cut-off/close of the relay normally closed contact set on total road of telescoping tube control circuit, so as to achieve the effect that protect sealing ring.
Description
Technical field
The utility model is related to drainage car field, more particularly to a kind of drainage vehicle extension tube and sealing ring interlock protection machine
Structure.
Background technology
Drainage car is usually applied to that ponding is serious and the areas such as flood, generally comprises vehicle body, dynamical system, liquid
Pressure system and draining pump, when in use, draining pump need into the water, and the hydraulic motor in hydraulic system driving draining pump turns
It is dynamic, so as to drive draining pump work.
In the early time, the drainpipe of draining pump is often limited to the effect length of vehicle body, can not be equipped with long drainpipe, to understand
Certainly this problem is currently on the market by the way of：Replace original straight barrel type pipeline with the telescoping tube that can be stretched, and
And in order to avoid situation about revealing occurs in the junction between two telescoping tubes that are connected, additionally use the side of inflation seal ring
Formula prevents the drainpipe from being revealed in draining；
But find in actual use, after the completion of inflation seal ring inflation, due to maloperation, and touch
The stretching of telescoping tube and retract switch so that telescoping tube is stretched out in the case where sealing ring is inflated and recovery operation, so as to
It can cause the tube wall of telescoping tube and sealing ring friction, cause sealing ring damaged and the effect of sealing can not be continued up to；Therefore it carries
It is very necessary for a kind of drainage vehicle extension tube and sealing ring interlock protection mechanism.
Utility model content
In view of above-mentioned deficiencies of the prior art, the purpose of this utility model is to provide a kind of drainage vehicle extension tubes and sealing
Interlock protection mechanism is enclosed, by way of the setting protection mechanism in telescoping tube and sealing ring mutual interlocking gear, to solve sealing ring
Under inflated condition, stretching/retract switch of telescoping tube is opened due to maloperation so that the tube wall of telescoping tube is generated with sealing ring
Friction, the problem of causing sealing ring damaged and can not continue to keep sealing.
In order to achieve the above objectives, the technical solution adopted in the utility model is：A kind of drainage vehicle extension tube and sealing ring are mutual
Protection mechanism is locked, including telescoping tube, sealing ring, telescoping tube control circuit, sealing ring control circuit and relay, the telescoping tube
For inside and outside tubular type telescoping tube, the sealing ring is inflation seal ring, and the inner and outer tubes that the sealing ring is set on telescoping tube connect
Place is met, the telescoping tube control circuit is used to control stretching/withdrawal of telescoping tube, and the sealing ring control circuit is close for controlling
The inflation of seal/lose heart；The sealing ring control circuit include sealing ring switch and the first solenoid valve, the relay include after
Electric apparatus coil and relay normally closed contact, the relay coil are arranged in parallel with the first solenoid valve, and the relay is normally closed to be touched
Point is set to total road of telescoping tube control circuit, and the relay coil is used to control relay normally closed contact cut-off/close.
Using the technical solution, the advantageous effect reached is：By in sealing ring control circuit, setting relay line
The mode of circle to control the cut-off/close of the relay normally closed contact set on total road of telescoping tube control circuit, works as sealing ring
When control circuit is powered, the first solenoid valve conduction, sealing ring starts to inflate, while relay coil control relay normally closed contact
It disconnects so that telescoping tube control circuit is in the state of open circuit, even if since opening in telescoping tube control circuit is opened in maloperation
It closes, telescoping tube control circuit is still within the state of open circuit, makes telescoping tube that can not carry out stretching out/recovery operation, is protected so as to reach
Protect the effect of sealing ring.
As a kind of preferred structure of the utility model, the telescoping tube control circuit includes telescoping tube is controlled to stretch out
The first branch and the second branch that withdraws of telescoping tube, the first branch and the second branch be arranged in parallel, the first branch
Including first switch, the first normally-closed contact and the second solenoid valve being connected in series with, the second branch includes be connected in series with the
Two switches, the second normally-closed contact and third solenoid valve.
As a kind of preferred structure of the utility model, oil cylinder, the second solenoid valve and third solenoid valve point are further included
It is not connect with oil cylinder, the second solenoid valve is stretched out for control cylinder, and the third solenoid valve withdraws for control cylinder, institute
The outer tube for stating oil cylinder one end and telescoping tube connects, and the inner tube of the other end and telescoping tube connects；The structure by the setting of oil cylinder come
Realize the operation of stretching and the withdrawal of telescoping tube.
As a kind of preferred structure of the utility model, the first branch is for controlling telescoping tube to stretch out, and described second
Branch is used to that telescoping tube to be controlled to withdraw.
As a kind of preferred structure of the utility model, the sealing ring control circuit further includes indicator light, the instruction
Lamp is connected in parallel with the first solenoid valve；The structure can be played prompting operator sealing ring and be in and be filled by the setting of indicator light
The effect of gaseity.
As a kind of preferred structure of the utility model, oil cylinder is further included, the telescoping tube control circuit is used to control oil
The inner tube of the outer tube connection of stretching/withdrawal of cylinder, described oil cylinder one end and telescoping tube, the other end and telescoping tube connects.
As a kind of preferred structure of the utility model, first solenoid valve is air-operated solenoid valve.
Description of the drawings
Fig. 1 is the electric operation control circuit figure in the preferred embodiment in the utility model；
Label declaration：
1st, sealing ring control circuit 11, sealing ring switch；12nd, the first solenoid valve；
13rd, relay coil；14th, indicator light；15th, relay normally closed contact；
2nd, telescoping tube control circuit；21st, the first branch；211st, first switch；
212nd, the first normally-closed contact；213rd, second solenoid valve；22nd, the second branch；
221st, second switch；222nd, the second normally-closed contact；223rd, third solenoid valve.
Specific embodiment
For the technology contents of the utility model, construction feature, the objects and the effects are described in detail, below in conjunction with implementation
Mode simultaneously coordinates attached drawing to be explained in detail.
As shown in Figure 1 it is found that the utility model provides a kind of drainage vehicle extension tube and sealing ring interlock protection mechanism, packet
Telescoping tube, sealing ring, telescoping tube control circuit 2, sealing ring control circuit 1 and relay are included, the telescoping tube is inside and outside tubular type
Telescoping tube, the sealing ring are inflation seal ring, and the sealing ring is set on the inner and outer tubes junction of telescoping tube, described to stretch
Draw control circuit is used to controlling stretching/withdrawal of telescoping tube, the sealing ring control circuit be used to controlling the inflation of sealing ring/
Lose heart；The sealing ring control circuit includes sealing ring switch 11 and the first solenoid valve 12, and the relay includes relay line
Circle 13 and relay normally closed contact 15, the relay coil are arranged in parallel with the first solenoid valve, the relay normally closed contact
Total road of telescoping tube control circuit is set to, the relay coil is used to control relay normally closed contact cut-off/close；
Inside and outside tubular type telescoping tube described in this structure refers to the telescoping tube being made of inner and outer tubes, and inner tube is set in outer tube, and is led to
Corresponding actuating mechanism is crossed to realize the stretching and withdrawal between inner tube and outer tube；The inflation seal ring also known as air bag, it is interior
Portion is hollow, with one or more discharge charge gas nozzles, is commonly applied to hatch door gap and the position of pipe end, when passing through gas nozzle
When being inflated to sealing ring, sealing ring deforms when being acted on by internal pressure power, and middle section bulges outward, tight with another sealing surface
Contiguity is touched, and so as to play sealing function, when needing depressurization state, high pressure gas in sealing ring, expansion are discharged by gas nozzle
Part is detached from by caoutchouc elasticity effect automatic retracted to groove with sealing surface.
In the present embodiment, it by sealing ring control circuit, setting the mode of relay coil, is stretched to control to be set on
The cut-off/close of the relay normally closed contact of total road of draw control circuit, when sealing ring control circuit is powered, sealing ring
Start to inflate, while relay coil control relay normally closed contact disconnects so that telescoping tube control circuit is in the shape of open circuit
State, even if since stretching/retract switch in telescoping tube control circuit is opened in maloperation, telescoping tube control circuit is still within breaking
The state on road makes telescoping tube that can not carry out stretching out/recovery operation, so as to achieve the effect that protect sealing ring；When sealing ring controls
When circuit does not turn on, sealing ring is not inflated, relay coil no power, and relay normally closed contact is in closed state, can
To carry out stretching/recovery operation of telescoping tube, since sealing ring is not inflated, in the stretching/withdrawal for carrying out telescoping tube
During operation, the breakage of sealing ring will not be caused.
In the above-described embodiments, the preferred air-operated solenoid valve of the first solenoid valve；The air-operated solenoid valve is pneumatic element,
Corresponding function is realized by controlling compressed air pressure and flow direction.
In the above-described embodiments, oil cylinder is further included, the telescoping tube control circuit is used for stretching/withdrawal of control cylinder,
The outer tube of described oil cylinder one end and telescoping tube connects, and the inner tube of the other end and telescoping tube connects.
In various embodiments, the sealing ring control circuit further includes indicator light 14, the indicator light and the first electricity
Magnet valve is connected in parallel；When sealing ring control circuit is powered, indicator light lights, and operating personnel's sealing ring can be reminded to be in inflation
State.
In certain some embodiment, the telescoping tube control circuit 2 includes the first branch for telescoping tube to be controlled to stretch out
21 and the second branch 22 that withdraws of telescoping tube, the first branch and the second branch be arranged in parallel, and the first branch includes string
Join first switch 211, the first normally-closed contact 212 and the second solenoid valve 213 of connection, the second branch 22 includes being connected in series with
Second switch 221, the second normally-closed contact 222 and third solenoid valve 223；In this configuration, the first branch is used to control
Telescoping tube stretches out, and the second branch is used to that telescoping tube to be controlled to withdraw.
In the above-described embodiments, oil cylinder is further included, the second solenoid valve and third solenoid valve are connect respectively with oil cylinder, institute
It states second solenoid valve to stretch out for control cylinder, the third solenoid valve withdraws for control cylinder, and described oil cylinder one end is with stretching
The inner tube of the outer tube connection of the draw, the other end and telescoping tube connects.
In the above-described embodiments, the stretching of control cylinder and withdrawal are realized by setting the first branch and the second branch,
So as to fulfill the stretching and withdrawal of telescoping tube；When first switch is closed, and the first branch is connected, second solenoid valve is started to work,
Control cylinder carries out stretching operation, so as to which telescoping tube be driven to stretch out；When second switch is closed, the second branch conducting, third electricity
Magnet valve is started to work, and control cylinder carries out recovery operation, so as to which telescoping tube be driven to withdraw.
The above description is only the embodiments of the present invention, and it does not limit the scope of the patent of the present invention, every
Equivalent shapes made based on the specification and figures of the utility model or Structural Transformation, are directly or indirectly used in other
Relevant technical field, is equally included in the patent within the scope of the utility model.
Claims (7)
1. a kind of drainage vehicle extension tube and sealing ring interlock protection mechanism, including telescoping tube, sealing ring and telescoping tube control circuit,
The telescoping tube is inside and outside tubular type telescoping tube, and the sealing ring is inflation seal ring, and the sealing ring is set on the interior of telescoping tube
Pipe and outer tube junction, the telescoping tube control circuit are used to control stretching/withdrawal of telescoping tube, it is characterised in that：It further includes
Sealing ring control circuit and relay, the sealing ring control circuit are used to controlling the inflation of sealing ring/lose heart；
The sealing ring control circuit include sealing ring switch and the first solenoid valve, the relay include relay coil and after
Electric appliance normally-closed contact, the relay coil are arranged in parallel with the first solenoid valve, and the relay normally closed contact is set to flexible
Total road of pipe control circuit, the relay coil are used to control relay normally closed contact cut-off/close.
2. interlock protection mechanism according to claim 1, it is characterised in that：The telescoping tube control circuit includes controlling
The second branch that the first branch and telescoping tube that telescoping tube processed stretches out are withdrawn, the first branch and the second branch are arranged in parallel,
The first branch includes the first switch, the first normally-closed contact and the second solenoid valve that are connected in series with, and the second branch includes
Second switch, the second normally-closed contact and the third solenoid valve being connected in series with.
3. interlock protection mechanism according to claim 2, it is characterised in that：Further include oil cylinder, the second solenoid valve and
Third solenoid valve is connect respectively with oil cylinder, and the second solenoid valve is stretched out for control cylinder, and the third solenoid valve is used to control
Liquefaction cylinder is withdrawn, and the outer tube of described oil cylinder one end and telescoping tube connects, and the inner tube of the other end and telescoping tube connects.
4. interlock protection mechanism according to claim 2, it is characterised in that：The first branch is used to that telescoping tube to be controlled to stretch
Go out, the second branch is used to that telescoping tube to be controlled to withdraw.
5. interlock protection mechanism according to claim 1, it is characterised in that：The sealing ring control circuit further includes instruction
Lamp, the indicator light are connected in parallel with the first solenoid valve.
6. interlock protection mechanism according to claim 1, it is characterised in that：Further include oil cylinder, the telescoping tube control electricity
Road is used for stretching/withdrawal of control cylinder, and the outer tube of described oil cylinder one end and telescoping tube connects, the inner tube of the other end and telescoping tube
Connection.
7. interlock protection mechanism according to claim 1, it is characterised in that：First solenoid valve is air-operated solenoid valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721258718.6U CN207598643U (en) | 2017-09-28 | 2017-09-28 | A kind of drainage vehicle extension tube and sealing ring interlock protection mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721258718.6U CN207598643U (en) | 2017-09-28 | 2017-09-28 | A kind of drainage vehicle extension tube and sealing ring interlock protection mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207598643U true CN207598643U (en) | 2018-07-10 |
Family
ID=62755765
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721258718.6U Active CN207598643U (en) | 2017-09-28 | 2017-09-28 | A kind of drainage vehicle extension tube and sealing ring interlock protection mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207598643U (en) |
-
2017
- 2017-09-28 CN CN201721258718.6U patent/CN207598643U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 364000 Longyan province Fujian city Xinluo District East Road No. 421 Dongbao Industrial Park Patentee after: Fujian Qiaolong emergency equipment Co., Ltd Address before: 364000 Longyan province Fujian city Xinluo District East Road No. 421 Dongbao Industrial Park Patentee before: Fujian overseas Chinese dragon emergency equipment Co., Ltd. |
|
| CP01 | Change in the name or title of a patent holder |