CN203599115U - Cleaning system and concrete pump truck - Google Patents
Cleaning system and concrete pump truck Download PDFInfo
- Publication number
- CN203599115U CN203599115U CN201320505834.9U CN201320505834U CN203599115U CN 203599115 U CN203599115 U CN 203599115U CN 201320505834 U CN201320505834 U CN 201320505834U CN 203599115 U CN203599115 U CN 203599115U
- Authority
- CN
- China
- Prior art keywords
- valve
- check valve
- water
- purging system
- outlet
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Abstract
The utility model provides a cleaning system and a concrete pump truck. The cleaning system comprises a water tank, a pump discharge conversion valve, a distributing valve, a water vat and a driving mechanism. A conveying piston and a connecting rod fixed on the conveying piston are arranged in the water vat. The water vat is separated into a rod chamber and a rod-free chamber by the conveying piston. The driving mechanism is connected with the connecting rod to drive the conveying piston to perform reciprocating motion. The distributing valve is provided with two inlet and outlets, one inlet and one outlet. The two inlet and outlets are respectively communicated with the rod-free chamber and the rod chamber of the water vat. The inlet is switched by the pump discharge conversion valve and is communicated with the water tank or atmosphere. The cleaning system of the above structure has following beneficial effects: when the cleaning system drains away water, air flows into the water vat via the pump discharge conversion valve and a pipeline; air after being compressed by the conveying piston is capable of completely discharging water remaining in the pipeline and valve bodies; and therefore the problem of incapability of emptying residual water is solved.
Description
Technical field
The utility model relates to engineering machinery field, particularly a kind of purging system and concrete mixer.
Background technology
In recent years, along with the fast development of construction machinery industry, the engineering machinery such as concrete mixer have been widely used in engineering construction, after concrete mixer fulfils assignment, need clean transfer pipeline etc., but, complete after pipeline-cleaning, still have part water and residue in pipeline, water pump and valve body, easily pipeline, water pump and valve body are being caused damage, especially in the time of residual water freezing, all the more so.In correlation technique, application number is in 201020000341.6 Chinese patent, a kind of " drainage device of cleaning water pump for concrete pump truck " disclosed, as shown in Figure 1, the gas piping 100 of flushing water pump drainage arrangement, comprise gas tank 117, the bend pipe being connected with gas tank 117 and straight tube 103, particularly, bend pipe comprises the second bend pipe 115 that the first bend pipe 107 is connected with one end of the first bend pipe 107 with one end, the other end of the second bend pipe 115 is connected with gas tank 117, the first bend pipe 107 is provided with switch valve 111 and connector 109, switch valve 111 is provided with muffler 113, one end of straight tube 103 is connected with the other end of the first bend pipe 107, straight tube 103 is provided with check valve 105, the other end of straight tube 103 is provided with suction hose 101.
The drainage device of cleaning water pump for concrete pump truck of said structure, has the following disadvantages:
First, can not be residual water emptying.The pump water draining device of said structure, still can not discharge the remaining water in piston-type underwater pump housing, valve body and relevant control and relevant control loop;
Secondly, there is potential safety hazard.The pump water draining device of said structure, adopts the mode of borrowing gas from chassis gas tank 117, and water unnecessary in water pipe is discharged, and easily causes gas tank 117 to leak gas, and travels and causes potential safety hazard to pump truck;
Again, pump water draining device needs manual operation, unrealized Based Intelligent Control.
In sum, how to provide a kind of purging system for cleaning work machinery and concrete mixer, become those skilled in the art to need the technical problem of solution badly.
Utility model content
In view of this, the utility model proposes a kind of purging system and concrete mixer, for solving the problem that the remaining water of valve body, pipeline and associated components of concrete mixer purging system cannot emptying.
On the one hand, the utility model proposes a kind of purging system, comprise water tank, pump row switching valve, distributing valve, water vat, driving mechanism, in described water vat, be provided with conveyor piston and be fixed on the connecting rod on conveyor piston, described water vat is divided into rod chamber and rodless cavity by described conveyor piston, described driving mechanism is connected to drive conveyor piston to move back and forth with connecting rod, described distributing valve is provided with two import and export, an entrance and an outlet, two import and export are communicated with rodless cavity and the rod chamber of water vat respectively, entrance is arranged switching valve switching by pump and is communicated with water tank or atmosphere.
Further, described driving mechanism is oil cylinder, and the piston of oil cylinder is connected with connecting rod.
Further, described distributing valve comprises the first check valve, the second check valve, the 3rd check valve and the 4th check valve, the entrance of the first check valve is connected with the entrance of the 4th check valve, the outlet of the first check valve is connected with the entrance of the second check valve, the outlet of the second check valve is connected with the outlet of the 3rd check valve, the entrance of the 3rd check valve is connected with the outlet of the 4th check valve, the entrance of described distributing valve is the entrance of the first check valve, an outlet that import and export are the first check valve of distributing valve, another import and export are the outlet of the 4th check valve, the outlet of distributing valve is the outlet of the second check valve.
Further, described pump row switching valve is 3-position-3-way solenoid directional control valve.
Further, described purging system also comprises to described oil cylinder is carried out the oil pump of fuel feeding and controls the magnetic valve of oil cylinder commutation.
Further, on the fuel-displaced pipeline of described oil pump, be also provided with overflow valve.
Further, described magnetic valve is 3-position 4-way solenoid directional control valve.
The purging system of said structure, driving mechanism drives the conveyor piston in water vat to move, realize water suction and the draining in water vat, simultaneously, when purging system draining, gas can be arranged the gas that switching valve, pipeline enter in water vat, after conveyor piston compression by pump and the water that residues in pipeline, valve body all can be got rid of, and efficiently solves the problem that remaining water cannot emptying.
On the other hand, the utility model also proposes a kind of concrete mixer, comprises purging system, and described purging system is purging system as above.
Further, be also provided with the gauge tap for controlling described purging system state on described concrete mixer, gauge tap is connected with pump row switching valve.
Accompanying drawing explanation
The accompanying drawing that forms a part of the present utility model is used to provide further understanding of the present utility model, and schematic description and description of the present utility model is used for explaining the utility model, does not form improper restriction of the present utility model.
Fig. 1 is the schematic diagram of a kind of cleaning water pump for concrete pump truck purging system in correlation technique;
Fig. 2 is the schematic diagram of a kind of purging system of the utility model embodiment;
Fig. 3 is the gauge tap schematic diagram of the utility model embodiment purging system.
In Fig. 1, the corresponding relation of Reference numeral is:
100 gas piping 101 suction hose 103 straight tube 105 check valves
107 first bend pipe 109 connector 111 switch valve 113 mufflers
115 second bend pipe 117 gas tanks
In Fig. 2 to Fig. 3, the corresponding relation of Reference numeral is:
1 water tank 2 pump row switching valve 3 distributing valves
31 first check valve 32 second check valve 33 the 3rd check valve 34 the 4th check valves
4 water vat 5 fuel tank 6 oil pump 7 motors
8 overflow valve 9 magnetic valve 10 piston 11 connecting rods
12 conveyor piston 13 gauge taps
The specific embodiment
It should be noted that, in the situation that not conflicting, the feature in embodiment and embodiment in the utility model can combine mutually.Describe below with reference to the accompanying drawings and in conjunction with the embodiments the utility model in detail.
Purging system as shown in Figure 2, can be widely used in engineering machinery, comprise water tank, pump row switching valve 2, water vat 4 and driving mechanism, in water vat 4, be provided with conveyor piston 12, one end of conveyor piston 12 is provided with connecting rod 11, conveyor piston 12 is separated into rod chamber and rodless cavity water vat 4, on rod chamber and rodless cavity, is respectively equipped with import and export.Driving mechanism can be oil cylinder, is provided with piston 10 in oil cylinder, and one end of piston 10 is fixedly connected with connecting rod 11, when piston 10 moves back and forth, can drive conveyor piston 12 to move back and forth.Distributing valve 3 is provided with two import and export, an entrance and an outlet, and two import and export are communicated with the import and export on rod chamber and the rodless cavity of water vat 4 respectively, and the entrance of distributing valve 3 is arranged switching valve 2 switchings by pump and is communicated with water tank or atmosphere.It should be noted that, driving mechanism can also be cylinder.
Distributing valve 3 is made up of four check valves, be respectively the first check valve 31, the second check valve 32, the 3rd check valve 33 and the 4th check valve 34, the entrance of the first check valve 31 is connected with the entrance of the 4th check valve 34, the entrance that goes out slogan the second check valve 32 of the first check valve 31 connects, the outlet of the second check valve 32 is connected with the outlet of the 3rd check valve 33, the entrance of the 3rd check valve 33 is connected with the outlet of the 4th check valve 34, the entrance of distributing valve 3 is the entrance of the first check valve 31, an outlet that import and export are the first check valve 31 of distributing valve 3, another import and export are the outlet of the 4th check valve 34, the outlet of distributing valve 3 is the outlet of the second check valve 32.
In technique scheme, pump row switching valve 2 is solenoid directional control valve, is specially 3-position-3-way solenoid directional control valve.
In technique scheme, purging system is also included as oil pump 6 provides motor 7 or the motor of power, and oil cylinder is communicated with oil pump 6 by pipeline.In addition, purging system also comprises fuel tank 5, and one end of oil pump 6 is placed in fuel tank 5, and the other end of oil pump 6 is communicated with oil cylinder by pipeline.It should be noted that, be also provided with the magnetic valve 9 for oil circuit control on the pipeline between oil pump 6 and oil cylinder, particularly, magnetic valve 9 is 3-position 4-way solenoid directional control valve.Be located at in-oil cylinder piston 10 oil cylinder is separated into rod chamber and rodless cavity, rod chamber and rodless cavity are provided with oil-in and oil return opening, oil-in and oil return opening are all communicated with fuel tank 5 by pipeline, it should be noted that, oil-in is relative with oil return opening, when a hydraulic fluid port is oil-in, another hydraulic fluid port is oil-out.
It should be noted that, for safety, prevent that security incident from occurring, on oil pump 6 pipelines, be also provided with overflow valve 8, in the time that the pressure in pipeline exceedes setting value, pressure will be by overflow valve 8 releases.
The purging system of said structure, operation principle is as follows:
In the time that needs provide water for cleaning to engineering machinery, pump row's switching valve 2 and magnetic valve 9 are switched on, the right position work of pump row switching valve 2, left position and the right bit interleaving work of magnetic valve 9, now, oil pump 6 passes through pipeline, provide hydraulic oil through magnetic valve 9 for oil cylinder, piston 10 moves left and right under the effect of hydraulic oil, in the time of the work of the left position of magnetic valve 9, hydraulic oil enters the rod chamber of oil cylinder, promotes piston 10 and is moved to the left, and the hydraulic oil in oil cylinder rodless cavity flows back to fuel tank 5 from the rodless cavity of oil cylinder through magnetic valve 9 and pipeline.Now, conveyor piston 12 is also moved to the left with piston 10, under pressure, the water inlet of the rodless cavity of water vat 4, rod chamber water outlet, particularly, water, from the water tank 1 right position of pump row switching valve 2 of flowing through, enters in the rodless cavity of water vat 4 through the 4th check valve 34.And water in water vat 4 rod chambers is under the effect of conveyor piston 12, second check valve 32 of flowing through, flows to through delivery port the position that engineering machinery need to be cleaned.
In the time of the work of the right position of magnetic valve 9, hydraulic oil enters the rodless cavity of oil cylinder, promotes piston 10 and moves right, and the hydraulic oil in cylinder rod chamber flows back to fuel tank 5 from the rodless cavity of oil cylinder through magnetic valve 9 and pipeline.Now, conveyor piston 12 also moves right with piston 10, under pressure, the water inlet of the rod chamber of water vat 4, rodless cavity water outlet, particularly, water, from the water tank 1 right position of pump row switching valve 2 of flowing through, enters in the rod chamber of water vat 4 through the first check valve 31.And water in water vat 4 rodless cavities is under the effect of conveyor piston 12, the 3rd check valve 33 of flowing through, flows to through delivery port the position that engineering machinery need to be cleaned, thereby completes cleaning.
In the time the remaining water in pipeline need to being got rid of, the left position work of pump row switching valve 2, the left position of magnetic valve 9 and right bit interleaving work, the operation principle of oil cylinder is the same, and owing to working the left position of pump row switching valve 2, left position communicates with atmosphere, and therefore, what enter water vat 4 is no longer water, but gas, in the side-to-side movement of conveyor piston 12, to delivery port Exhaust Gas, can be the remaining water emptying residuing in pipeline and valve body with the gas of pressure.
After draining finishes, engineering machinery shuts down, and now, the also power-off simultaneously of pump row's switching valve 2 and magnetic valve 9, all in meta, stops oil-feed in oil cylinder, in water vat 4, stop into water or gas.
The purging system of said structure, tool has the following advantages:
First, efficiently solve in valve body and pipeline the problem that remaining water cannot emptying.The purging system of said structure, after engineering machinery is cleaned, can arrange switching valve 2 by pump and provide gas to water vat 4, and gas enters in water tank pipeline under the effect of pressure, can effectively the remaining water in valve body and pipeline be got rid of clean.
Secondly, there is not potential safety hazard.The purging system of said structure need to not borrowed gas from the gas tank on chassis, can not cause gas tank gas leakage, but directly from air, get gas, has effectively got rid of because of the gas tank potential safety hazard causing of leaking gas.
Again, automaticity is high, realizes Based Intelligent Control.The purging system of said structure, does not need to carry out manual operation, can automatically complete the remaining water in valve body and pipeline, and automaticity is higher, has realized Based Intelligent Control.
In addition, the utility model also proposes a kind of concrete mixer, comprises purging system as above.
Further, concrete mixer also comprises the gauge tap 13 for controlling purging system state, and gauge tap 13 is connected with pump row switching valve 2, the commutation of control pump row switching valve 2.As shown in Figure 3, gauge tap 13 comprises three states, cleans state, hull-borne and halted state, and cleaning state is for cleaning pump truck transfer pipeline, hull-borne is used for the remaining water emptying of valve body and water tank 1 pipeline, and halted state is that purging system quits work.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.
Claims (9)
1. a purging system, it is characterized in that, comprise water tank (1), pump row's switching valve (2), distributing valve (3), water vat (4), driving mechanism, in described water vat (4), be provided with conveyor piston (12) and be fixed on the connecting rod (11) on conveyor piston (12), described water vat (4) is divided into rod chamber and rodless cavity by described conveyor piston (12), described driving mechanism is connected to drive conveyor piston (12) to move back and forth with connecting rod (11), described distributing valve (3) is provided with two import and export, an entrance and an outlet, two import and export are communicated with rodless cavity and the rod chamber of water vat (4) respectively, entrance is arranged switching valve (2) switching by pump and is communicated with water tank (1) or atmosphere.
2. purging system according to claim 1, is characterized in that, described driving mechanism is oil cylinder, and the piston (10) of oil cylinder is connected with connecting rod (11).
3. purging system according to claim 1, it is characterized in that, described distributing valve (3) comprises the first check valve (31), the second check valve (32), the 3rd check valve (33) and the 4th check valve (34), the entrance of the first check valve (31) is connected with the entrance of the 4th check valve (34), the outlet of the first check valve (31) is connected with the entrance of the second check valve (32), the outlet of the second check valve (32) is connected with the outlet of the 3rd check valve (33), the entrance of the 3rd check valve (33) is connected with the outlet of the 4th check valve (34), the entrance of described distributing valve (3) is the entrance of the first check valve (31), an outlet that import and export are the first check valve (31) of distributing valve (3), another import and export are the outlet of the 4th check valve (34), the outlet of distributing valve (3) is the outlet of the second check valve (32).
4. purging system according to claim 1, is characterized in that, described pump row's switching valve (2) is 3-position-3-way solenoid directional control valve.
5. purging system according to claim 2, is characterized in that, described purging system also comprises to described oil cylinder is carried out the oil pump (6) of fuel feeding and controls the magnetic valve (9) of oil cylinder commutation.
6. purging system according to claim 5, is characterized in that, the fuel-displaced pipeline of described oil pump (6) is provided with overflow valve (8).
7. purging system according to claim 5, is characterized in that, described magnetic valve (9) is 3-position 4-way solenoid directional control valve.
8. a concrete mixer, is characterized in that, is provided with the purging system as described in any one in claim 1 to 7 on described concrete mixer.
9. concrete mixer according to claim 8, is characterized in that, is also provided with the gauge tap (13) for controlling described purging system state on described concrete mixer, and gauge tap (13) is connected with pump row's switching valve (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320505834.9U CN203599115U (en) | 2013-08-19 | 2013-08-19 | Cleaning system and concrete pump truck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320505834.9U CN203599115U (en) | 2013-08-19 | 2013-08-19 | Cleaning system and concrete pump truck |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203599115U true CN203599115U (en) | 2014-05-21 |
Family
ID=50711816
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320505834.9U Expired - Lifetime CN203599115U (en) | 2013-08-19 | 2013-08-19 | Cleaning system and concrete pump truck |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203599115U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104929889A (en) * | 2015-06-02 | 2015-09-23 | 三一汽车制造有限公司 | Concrete conveying pump and conveying pipe cleaning method |
| CN109854473A (en) * | 2019-03-08 | 2019-06-07 | 重庆特博液压机电有限公司 | Reciprocating pumping tank |
-
2013
- 2013-08-19 CN CN201320505834.9U patent/CN203599115U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104929889A (en) * | 2015-06-02 | 2015-09-23 | 三一汽车制造有限公司 | Concrete conveying pump and conveying pipe cleaning method |
| CN104929889B (en) * | 2015-06-02 | 2017-03-29 | 三一汽车制造有限公司 | Concrete pump and delivery pipe cleaning method |
| CN109854473A (en) * | 2019-03-08 | 2019-06-07 | 重庆特博液压机电有限公司 | Reciprocating pumping tank |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102357491A (en) | Machine for wiping inner walls of gun barrel or other pipelines | |
| CN105298510B (en) | Pipe replacing and slurry discharging device for slurry shield and slurry discharging mode | |
| CN202356367U (en) | Wiping machine for wiping inner walls of gun barrels and other pipelines | |
| CN102213201B (en) | High-efficiency concrete or coal slurry conveying system, control method thereof, and two-position three-way hydraulically-controlled directional control valve applied to high-efficiency concrete or coal slurry conveying system | |
| CN105757015A (en) | Hydraulic driven type non-intermittent supercharging device | |
| CN203599115U (en) | Cleaning system and concrete pump truck | |
| CN203599162U (en) | Tank type cleaning device for steel pipes | |
| CN102400968B (en) | Hydraulic valve, hydraulic system and concrete pumping equipment | |
| CN103671316A (en) | Pumping hydraulic system and pumping equipment | |
| CN203488328U (en) | Pumping system and concrete pumping device | |
| CN105757016A (en) | Hydraulic control system of supercharging device | |
| CN203426111U (en) | Portable pipeline inner wall pneumatic cleaning system | |
| CN107701544B (en) | Oiling and exhausting system of electrohydraulic actuator | |
| CN102330648A (en) | Boosting pump and reverse osmosis system using same | |
| CN104214142A (en) | Manifold truck and hydraulic control system thereof | |
| CN217570004U (en) | Pipeline cleaning device | |
| CN201825568U (en) | Flushing and cooling branch of closed loop of bucket wheel machine hydraulic system | |
| CN104438246B (en) | Finned type heat exchanger cleaning device for inner wall of pipeline | |
| CN204023642U (en) | Hydraulic crawler excavator oil-liquid hybrid electric system | |
| CN203655770U (en) | Valve group, hydraulic system and coalmine-used concrete conveying equipment | |
| CN201625652U (en) | Windshield washing liquid filling machine | |
| CN102410168B (en) | Pumping mechanism and concrete pumping device | |
| CN104907294A (en) | Closed type recycle washing device for pipeline of hydraulic system | |
| CN205977414U (en) | Engine fuel nozzle belt cleaning device | |
| CN105952611B (en) | A kind of absorption system piston reversing pumping device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140521 |