CN203009943U - Overflow valve and overflow valve-adopted asphalt discharging pipe structure of joint sealing machine - Google Patents
Overflow valve and overflow valve-adopted asphalt discharging pipe structure of joint sealing machine Download PDFInfo
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- CN203009943U CN203009943U CN 201220605768 CN201220605768U CN203009943U CN 203009943 U CN203009943 U CN 203009943U CN 201220605768 CN201220605768 CN 201220605768 CN 201220605768 U CN201220605768 U CN 201220605768U CN 203009943 U CN203009943 U CN 203009943U
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Abstract
The utility model relates to an overflow valve and an overflow valve-adopted asphalt discharging pipe structure of a joint sealing machine. The overflow valve comprises a valve body and a valve core, wherein a fluid inlet and a fluid outlet are formed on the valve body; the valve core is arranged in the cavity of the valve body, and an adjusting device is arranged between the valve body and the valve core; the valve core is provided with a an initial state and a working state, when in the initial state, the valve core completely seals the fluid outlet, while in the working state, the fluid from the fluid inlet pushes the valve core to overcome the acting force of the adjusting device and move along the cavity of the valve body so as to communicate the fluid inlet, the valve body cavity and the fluid outlet; and moreover, the size of the connecting port between the fluid outlet and the valve body cavity can be changed according to the intensity of the fluid pressure. The overflow valve has the advantages of simple structure, easiness in operation, and automatic pressure adjusting function. When the overflow valve is mounted on the asphalt discharging pipe structure of the joint sealing machine, the pressure of conveying asphalt is stable, so as to avoid that the pipe is damaged and the asphalt is overflowed from a spray gun when the spray gun is closed; and the operation is safe and reliable.
Description
Technical field
The utility model relates to the pouring machine asphalt discharging pipe structure of a kind of relief valve and application thereof.
Background technique
Pouring machine is mainly used in the surface crack in asphalt pavement, cement pavement, place and processes, and supports the use with grooving-cutting machine, vehicle-mounted hoisting machine etc.
as shown in Figure 5, asphalt discharging pipe structure on existing pouring machine generally comprises and flows out pipeline a1, injection pipe a2 and reflux line a3, the import of flowing out pipeline a1 is connected with the hot melt kettle a4 of pouring machine, flow out the outlet of pipeline a1, the import of the import of injection pipe a2 and reflux line a3 is interconnected into the threeway shape, the outlet of reflux line a3 is connected with the hot melt kettle a4 of pouring machine, injection pipe a2 is connected with the spray gun (not shown) by flexible pipe, flow out pipeline a1 and be provided with bitumenpump a5, reflux line a3 is provided with a regular tap valve a6, reflux line a3 can be in the pitch course of injection, bitumenpump a5 is partly flow back in hot melt kettle a4 to the pitch that injection pipe a2 carries, can avoid like this that the pitch pressure carried in pipeline is excessive causes spray gun or pipeline burst damage.But, the regular tap valve is set on reflux line, because the communication port of regular tap valve is fixing, when the improper communication port that causes this regular tap valve of manual operation occurring when too small, be difficult to reduce the pitch pressure of carrying in pipeline, be easy to cause the damage of spray gun or pipeline burst, in addition, when the asphalt distribution operation complete, when closing spray gun, in pipeline, the interior pitch pressure of carrying can increase suddenly, and the communication port of regular tap valve is fixing, part pitch may overflow from spray gun on the one hand, also may cause on the other hand the damage of spray gun or pipeline burst.
Summary of the invention
Main purpose of the present utility model is to provide a kind of relief valve, and this structure of relief valve is simple, and easily operation, have the automatic Regulation function, reliable operation, and the life-span is longer, reduces maintenance failure.
Above-mentioned purpose is achieved by the following technical solution:
A kind of relief valve comprises that one offers valve body and a spool of cavity, and valve body is provided with fluid inlet and the fluid output that is communicated with valve cavity, and spool is located in valve cavity slippingly, it is characterized in that:
Be provided with a controlling device between valve body and spool, controlling device provides an active force and makes spool have an original state and a working state to spool;
When spool was in original state, spool stopped up sealing fully with fluid output;
When spool was in running order, the fluid that flows into from fluid inlet promoted the active force that spool overcomes controlling device and moves and make fluid inlet, valve cavity and fluid output become connecting shape and can change according to the hydrodynamic pressure size size of fluid output and valve cavity connecting port along valve cavity.
Above technological scheme can be further improved by following measures:
This controlling device comprises the Compress Spring that is arranged between valve body and spool.
This fluid inlet is positioned at valve body lower end, fluid output is positioned at body wall, the valve body upper end is provided with valve gap, this controlling device also comprises a push rod, and the push rod perisporium is provided with screw thread, and push rod passes valve gap and coordinates with the turn of valve gap screw thread, one section of stretching in valve cavity of push rod is provided with back-up ring, Compress Spring is inserted in push rod, and an end is pressed on back-up ring, and the other end is pressed on spool.
The interior close fluid inlet of this valve cavity place is provided with a boss, and when spool was in original state, the spool head was pressed on boss and by boss and supports, spool head shutoff fluid inlet, spool perisporium shutoff fluid output.
Be rotary with a locking nut on this push rod, locking nut is pressed on the valve gap exterior edge face with the locking push rod.
The end that this push rod stretches out valve body is provided with handwheel.
Another purpose of the present utility model is to provide a kind of pouring machine asphalt discharging pipe structure structure of using above-mentioned relief valve, and this pipeline configuration conveying bitumen pressure is steady, avoids the pipeline damage, reduces costs loss, reliable operation, and the life-span is longer.
Above-mentioned purpose is achieved by the following technical solution:
a kind of pouring machine asphalt discharging pipe structure, comprise the outflow pipeline, injection pipe and reflux line, the import of flowing out pipeline is connected with the hot melt kettle of pouring machine, flow out the outlet of pipeline, the import of injection pipe and the import of reflux line are interconnected into the threeway shape, the outlet of reflux line is connected with the hot melt kettle of pouring machine, flow out pipeline and be provided with bitumenpump, it is characterized in that: reflux line is provided with relief valve, this relief valve comprises that one offers valve body and a spool of cavity, valve body is provided with fluid inlet and the fluid output that is communicated with valve cavity, spool is located in valve cavity slippingly, be provided with a controlling device between valve body and spool, controlling device provides an active force and makes spool have an original state and a working state to spool,
When spool was in original state, spool stopped up sealing fully with fluid output;
When spool was in running order, the pitch that flows into from fluid inlet promoted the active force that spool overcomes controlling device and moves and make fluid inlet, valve cavity and fluid output become connecting shape and can change according to the pressure size of pitch the size of fluid output and valve cavity connecting port along valve cavity.
Above technological scheme can be further improved by following measures:
This controlling device comprises the Compress Spring that is arranged between valve body and spool.
This fluid inlet is positioned at valve body lower end, fluid output is positioned at body wall, the valve body upper end is provided with valve gap, this controlling device also comprises a push rod, the push rod perisporium is provided with screw thread, push rod passes valve gap and coordinates with the turn of valve gap screw thread, one section of stretching in valve cavity of push rod is provided with back-up ring, Compress Spring is inserted in push rod, one end is pressed on back-up ring, and the other end is pressed on spool, and the end that push rod stretches out valve body is provided with handwheel, be rotary with a locking nut on this push rod, locking nut is pressed on the valve gap exterior edge face with the locking push rod.
The interior close fluid inlet of this valve cavity place is provided with a boss, and when spool was in original state, the spool head was pressed on boss and by boss and supports, spool head shutoff fluid inlet, spool perisporium shutoff fluid output.
The utility model compared with prior art has following advantage:
(1) a kind of from relief valve, comprise that one offers valve body and a spool of cavity, valve body is provided with fluid inlet and the fluid output that is communicated with valve cavity, spool is located in valve cavity slippingly, it is characterized in that: be provided with a controlling device between valve body and spool, controlling device provides an active force and makes spool have an original state and a working state to spool; When spool was in original state, spool stopped up sealing fully with fluid output; When spool is in running order, the fluid that flows into from fluid inlet promotes the active force that spool overcomes controlling device and moves and make fluid inlet, valve cavity and fluid output become connecting shape and can change according to the hydrodynamic pressure size size of fluid output and valve cavity connecting port along valve cavity, simple in structure, easily operation, have the automatic Regulation function;
(2) this controlling device comprises the Compress Spring that is arranged between valve body and spool, this fluid inlet is positioned at valve body lower end, fluid output is positioned at body wall, the valve body upper end is provided with valve gap, this controlling device also comprises a push rod, the push rod perisporium is provided with screw thread, push rod passes valve gap and coordinates with the turn of valve gap screw thread, one section of stretching in valve cavity of push rod is provided with back-up ring, Compress Spring is inserted in push rod, one end is pressed on back-up ring, the other end is pressed on spool, the interior close fluid inlet of this valve cavity place is provided with a boss, when spool is in original state, the spool head is pressed on boss and by boss and supports, spool head shutoff fluid inlet, spool perisporium shutoff fluid output, simple in structure, low cost of manufacture, the size of the initial elastic force of Compress Spring can be regulated with the distance of regulating between push rod and spool, simple to operate, enlarge using scope,
(3) this push rod end of stretching out valve body is provided with handwheel, can regulate by the distance between manual tune push rod and spool the size of the initial elastic force of Compress Spring;
(4) a kind of pouring machine asphalt discharging pipe structure, comprise the outflow pipeline, injection pipe and reflux line, the import of flowing out pipeline is connected with the hot melt kettle of pouring machine, flow out the outlet of pipeline, the import of injection pipe and the import of reflux line are interconnected into the threeway shape, the outlet of reflux line is connected with the hot melt kettle of pouring machine, flow out pipeline and be provided with bitumenpump, it is characterized in that: reflux line is provided with relief valve, this relief valve comprises that one offers valve body and a spool of cavity, valve body is provided with fluid inlet and the fluid output that is communicated with valve cavity, spool is located in valve cavity slippingly, be provided with a controlling device between valve body and spool, controlling device provides an active force and makes spool have an original state and a working state to spool, when spool was in original state, spool stopped up sealing fully with fluid output, when spool is in running order, the pitch that flows into from fluid inlet promotes the active force that spool overcomes controlling device and moves and make fluid inlet, valve cavity and fluid output become connecting shape and can change according to the pressure size of pitch the size of fluid output and valve cavity connecting port along valve cavity, on the pipeline of returning, relief valve is installed, can make conveying bitumen pressure steady, avoid the pipeline damage, in the time of also can avoiding closing spray gun, pitch overflows from spray gun, reduce costs loss, reliable operation, life-span is longer, reduces maintenance failure.
Description of drawings
Fig. 1 is the perspective view of the utility model relief valve;
Fig. 2 and Fig. 3 are the sectional structure schematic diagram of the utility model relief valve, and wherein, the spool of Fig. 2 is in original state, and the spool of Fig. 3 is in running order;
Fig. 4 is the perspective exploded view of the utility model relief valve;
Fig. 5 is the perspective view of existing pouring machine asphalt discharging pipe;
Fig. 6 is the perspective view of the utility model pouring machine asphalt discharging pipe;
Fig. 7 is the perspective view of the hiding hot melt kettle of the utility model pouring machine asphalt discharging pipe;
Fig. 8 is the original schematic diagram of the utility model pouring machine asphalt discharging pipe.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
As shown in Figures 1 to 4, a kind of relief valve, comprise that one offers valve body 1 and a spool 2 of cavity 11, valve body 1 is provided with fluid inlet 12 and the fluid output 13 that is communicated with valve cavity 11, spool 2 is located in valve cavity 11 slippingly, particularly, the perisporium of spool 2 and valve cavity 11 inwalls are complementary, valve cavity 11 inwalls are as the slippage guide surface of spool 2, also be provided with seal ring 22 on spool 2, be provided with a controlling device between valve body 1 and spool 2, controlling device provides a directed force F and makes spool have an original state and a working state to spool;
When spool was in original state, spool stopped up sealing fully with fluid output 13;
When spool was in running order, the fluid that flows into from fluid inlet 12 promoted the directed force F that spool 2 overcomes controlling device and moves and make fluid inlet 12,13 one-tenths connecting shapes of valve cavity 11 and fluid output and can change according to the hydrodynamic pressure size size of fluid output 13 and valve cavity 11 connecting port L along valve cavity 11.
This controlling device comprises the Compress Spring 3 that is arranged between valve body 1 and spool 2.
This fluid inlet 12 is positioned at valve body 1 lower end, fluid output 13 is positioned at valve body 1 sidewall, valve body 1 upper end is provided with valve gap 14, this controlling device also comprises a push rod 4, and push rod 4 perisporiums are provided with screw thread, and push rod 4 passes valve gap 14 and coordinates with valve gap 14 screw thread turns, one section of stretching in valve cavity 11 of push rod 4 is provided with back-up ring 41, Compress Spring 3 is inserted in push rod 4, and Compress Spring 3 one ends are pressed on back-up ring 41, and the other end is pressed on spool 2.This controlling device provides a directed force F to spool, is the initial elastic force of Compress Spring, and the size of this initial elastic force can regulating pushing rod and spool between distance regulate.
The interior close fluid inlet of this valve cavity 11 12 places are provided with a boss 15, and when spool 2 was in original state, spool head 21 was pressed on boss 15 and by boss 15 and supports, spool head 21 shutoff fluid inlets 12, spool 2 perisporium shutoff fluid outputs 13.
Be rotary with a locking nut 5 on this push rod 4, locking nut 5 is pressed on valve gap 14 exterior edge faces with locking push rod 4.
The end that this push rod 4 stretches out valve body is provided with handwheel 42.
as shown in Fig. 6 to 8, a kind of pouring machine asphalt discharging pipe structure of using above-mentioned relief valve, comprise and flow out pipeline 6, injection pipe 7 and reflux line 8, the import of flowing out pipeline 6 is connected with the hot melt kettle 9 of pouring machine, flow out the outlet of pipeline 6, the import of the import of injection pipe 7 and reflux line 8 is interconnected into the threeway shape, the outlet of reflux line 8 is connected with the hot melt kettle of pouring machine 9, flow out pipeline 6 and be provided with bitumenpump 61, reflux line 8 is provided with relief valve A, this relief valve A comprises that as shown in Figures 1 to 4 one offers valve body 1 and a spool 2 of cavity 11, valve body 1 is provided with fluid inlet 12 and the fluid output 13 that is communicated with valve cavity 11, spool 2 is located in valve cavity 11 slippingly, particularly, the perisporium of spool 2 and valve cavity 11 inwalls are complementary, valve cavity 11 inwalls are as the slippage guide surface of spool 2, be provided with a controlling device between valve body 1 and spool 2, controlling device provides a directed force F and makes spool have an original state and a working state to spool,
When spool was in original state, spool stopped up sealing fully with fluid output 13;
When spool was in running order, the pitch that flows into from fluid inlet 12 promoted the directed force F that spool 2 overcomes controlling device and moves and make fluid inlet 12,13 one-tenths connecting shapes of valve cavity 11 and fluid output and can change according to pitch pressure size the size of fluid output 13 and valve cavity 11 connecting port L along valve cavity 11.
before this pouring machine spraying operation, can first manually rotate handwheel 42 and determine the initial elastic force of a Compress Spring 3, wherein, this initial elastic force can be determined according to actual needs, during spraying operation, spray through the spray gun (not shown) from injection pipe 7 from a pitch part that flows out pipeline 6 outputs, another part flows back into hot melt kettle 9 through reflux line 8, the fluid output 13 of the relief valve on reflux line 8 is regulated according to the size of pipeline medium pitch pressure automatically with the size of valve cavity 11 connecting port L, make in pipeline the pressure of conveying bitumen steady, in addition, when spraying operation is complete when closing spray gun, although in pipeline, the pressure of conveying bitumen can increase, but connecting port L also can increase automatically thereupon, so just can avoid pitch to overflow from spray gun.
Claims (10)
1. a relief valve, comprise that one offers valve body and a spool of cavity, and valve body is provided with fluid inlet and the fluid output that is communicated with valve cavity, and spool is located in valve cavity slippingly, it is characterized in that:
Be provided with a controlling device between valve body and spool, controlling device provides an active force and makes spool have an original state and a working state to spool;
When spool was in original state, spool stopped up sealing fully with fluid output;
When spool was in running order, the fluid that flows into from fluid inlet promoted the active force that spool overcomes controlling device and moves and make fluid inlet, valve cavity and fluid output become connecting shape and can change according to the hydrodynamic pressure size size of fluid output and valve cavity connecting port along valve cavity.
2. a kind of relief valve according to claim 1, it is characterized in that: this controlling device comprises the Compress Spring that is arranged between valve body and spool.
3. a kind of relief valve according to claim 2, it is characterized in that: this fluid inlet is positioned at valve body lower end, fluid output is positioned at body wall, and the valve body upper end is provided with valve gap, and this controlling device also comprises a push rod, the push rod perisporium is provided with screw thread, push rod passes valve gap and coordinates with the turn of valve gap screw thread, and a section of stretching in valve cavity of push rod is provided with back-up ring, and Compress Spring is inserted in push rod, Compress Spring one end is pressed on back-up ring, and the other end is pressed on spool.
4. a kind of relief valve according to claim 3, it is characterized in that: be provided with a boss near the fluid inlet place in this valve cavity, when spool was in original state, the spool head was pressed on boss and by boss and supports, spool head shutoff fluid inlet, spool perisporium shutoff fluid output.
5. according to claim 3 or 4 described a kind of relief valves is characterized in that: be rotary with a locking nut on this push rod, locking nut is pressed on the valve gap exterior edge face with the locking push rod.
6. according to claim 3 or 4 described a kind of relief valves, it is characterized in that: the end that push rod stretches out valve body is provided with handwheel.
7. an application rights requires the pouring machine asphalt discharging pipe structure of 1 described relief valve, comprise the outflow pipeline, injection pipe and reflux line, the import of flowing out pipeline is connected with the hot melt kettle of pouring machine, flow out the outlet of pipeline, the import of injection pipe and the import of reflux line are interconnected into the threeway shape, the outlet of reflux line is connected with the hot melt kettle of pouring machine, flow out pipeline and be provided with bitumenpump, it is characterized in that: reflux line is provided with relief valve, this relief valve comprises that one offers valve body and a spool of cavity, valve body is provided with fluid inlet and the fluid output that is communicated with valve cavity, spool is located in valve cavity slippingly, be provided with a controlling device between valve body and spool, controlling device provides an active force and makes spool have an original state and a working state to spool,
When spool was in original state, spool stopped up sealing fully with fluid output;
When spool was in running order, the pitch that flows into from fluid inlet promoted the active force that spool overcomes controlling device and moves and make fluid inlet, valve cavity and fluid output become connecting shape and can change according to the pressure size of pitch the size of fluid output and valve cavity connecting port along valve cavity.
8. a kind of pouring machine asphalt discharging pipe structure according to claim 7, it is characterized in that: this controlling device comprises the Compress Spring that is arranged between valve body and spool.
9. a kind of pouring machine asphalt discharging pipe structure according to claim 8, it is characterized in that: this fluid inlet is positioned at valve body lower end, fluid output is positioned at body wall, the valve body upper end is provided with valve gap, this controlling device also comprises a push rod, the push rod perisporium is provided with screw thread, push rod passes valve gap and coordinates with the turn of valve gap screw thread, one section of stretching in valve cavity of push rod is provided with back-up ring, Compress Spring is inserted in push rod, one end is pressed on back-up ring, the other end is pressed on spool, the end that push rod stretches out valve body is provided with handwheel, be rotary with a locking nut on this push rod, locking nut is pressed on the valve gap exterior edge face with the locking push rod.
10. a kind of pouring machine asphalt discharging pipe structure according to claim 9, it is characterized in that: be provided with a boss near the fluid inlet place in this valve cavity, when spool is in original state, the spool head is pressed on boss and by boss and supports, spool head shutoff fluid inlet, spool perisporium shutoff fluid output.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220605768 CN203009943U (en) | 2012-11-15 | 2012-11-15 | Overflow valve and overflow valve-adopted asphalt discharging pipe structure of joint sealing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220605768 CN203009943U (en) | 2012-11-15 | 2012-11-15 | Overflow valve and overflow valve-adopted asphalt discharging pipe structure of joint sealing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203009943U true CN203009943U (en) | 2013-06-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220605768 Expired - Fee Related CN203009943U (en) | 2012-11-15 | 2012-11-15 | Overflow valve and overflow valve-adopted asphalt discharging pipe structure of joint sealing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203009943U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105465436A (en) * | 2016-01-23 | 2016-04-06 | 王永代 | Grouting pressure-stabilizing valve |
| CN105478262A (en) * | 2015-12-15 | 2016-04-13 | 荣昌精密机械(苏州)有限公司 | Overflow-preventing spraying head for injection molding machine |
| CN107889725A (en) * | 2017-11-27 | 2018-04-10 | 王建锋 | More piece automatic telescopic sprinkling irrigation delivery port |
| CN109958777A (en) * | 2017-12-26 | 2019-07-02 | 丹佛斯有限公司 | Differential-pressure bypass valve and cold water or the heat pump unit circulatory system |
| CN110946633A (en) * | 2019-11-26 | 2020-04-03 | 杭州电子科技大学 | Portable quick extrusion device |
| CN112878163A (en) * | 2021-03-25 | 2021-06-01 | 董方 | Asphalt pavement crack pouring device and method |
| CN113266319A (en) * | 2021-07-01 | 2021-08-17 | 金湖县源景机械有限公司 | Gas lift valve suitable for variable pressure gas lift lifting process |
-
2012
- 2012-11-15 CN CN 201220605768 patent/CN203009943U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105478262A (en) * | 2015-12-15 | 2016-04-13 | 荣昌精密机械(苏州)有限公司 | Overflow-preventing spraying head for injection molding machine |
| CN105465436A (en) * | 2016-01-23 | 2016-04-06 | 王永代 | Grouting pressure-stabilizing valve |
| CN107889725A (en) * | 2017-11-27 | 2018-04-10 | 王建锋 | More piece automatic telescopic sprinkling irrigation delivery port |
| CN109958777A (en) * | 2017-12-26 | 2019-07-02 | 丹佛斯有限公司 | Differential-pressure bypass valve and cold water or the heat pump unit circulatory system |
| CN110946633A (en) * | 2019-11-26 | 2020-04-03 | 杭州电子科技大学 | Portable quick extrusion device |
| CN112878163A (en) * | 2021-03-25 | 2021-06-01 | 董方 | Asphalt pavement crack pouring device and method |
| CN113266319A (en) * | 2021-07-01 | 2021-08-17 | 金湖县源景机械有限公司 | Gas lift valve suitable for variable pressure gas lift lifting process |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130619 Termination date: 20161115 |