CN104153988A - Distribution valve, pumping mechanism and concrete pump - Google Patents
Distribution valve, pumping mechanism and concrete pump Download PDFInfo
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- CN104153988A CN104153988A CN201410380591.XA CN201410380591A CN104153988A CN 104153988 A CN104153988 A CN 104153988A CN 201410380591 A CN201410380591 A CN 201410380591A CN 104153988 A CN104153988 A CN 104153988A
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- distributing valve
- feeding hole
- valve
- pumping mechanism
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Abstract
The invention discloses a distribution valve, a pumping mechanism and a concrete pump. The distribution valve comprises a rotary shaft and a valve body fixed with the rotary shaft. The rotary shaft is used for being connected with a drive device, a material conveying hole is formed in the valve body and used for enabling a discharge pipe to be alternately communicated with a conveying cylinder, blocking faces are arranged at the positions, on the two sides of the front end of the material conveying hole, of the valve body, and avoiding faces are arranged at the positions, on the two sides of the rear end of the material conveying hole, of the valve body. The continuous pumping operation can be completed by applying the novel distribution valve, and the distribution valve has the advantages of being ingenious in structure, easy to machine and manufacture, convenient to dismount, good in material absorption performance, small in abrasion and the like.
Description
Technical field
The present invention relates to pumping and technical field of engineering machinery, specifically, relate to a kind of distributing valve, and be provided with the concrete pump of this distributing valve or pumping mechanism.
Background technique
Pumping mechanism is the core component of concrete pump, by the alternately push pull maneuver of two or more master cylinders, thereby can provide power by concrete conveyance to pouring position.Pumping mechanism is mainly made up of parts such as master cylinder, conveying cylinder, water tank, concrete piston, distributing valve, discharge nozzle, pull bar and hoppers, distributing valve is positioned at hopper, play a part two or more to carry cylinder feed status to switch, for discharge nozzle is alternately communicated with carrying cylinder.
In the time of real work, the arrangement of distributing valve and working method have tremendous influence to its working effect.On the one hand, for the consideration to increase suction, require to utilize as far as possible the gravitational potential energy that sucks material, ensure good suction, this just requires to carry the material sucking port of cylinder to try one's best near the bottom of hopper; On the other hand, for the working space requirement to distributing valve, sealing requirements when pumping, the consideration of the factors such as the arrangement requirement of conveying cylinder, pipeline, the position of having limited again material sucking port.
The pumping mechanism of concrete pump distributing valve used in prior art, great majority adopt the mode of switching that swings, the mode that small part adopts flashboard structure control to switch.In the distributing valve of use swing mode, axis of oscillation horizontal arrangement is in the majority.Spatial requirement while swing due to pendulum valve, carries the arrangement requirement of cylinder etc., tends to cause the position of material sucking port to be not suitable for.In addition, for S type distributing valve, swing resistance large in its swing process, thereby cause the wearing and tearing between glasses plate and cutting ring large, working life is short, need to often change.
Therefore, how to ensure under the prerequisite of normal pump function, making the bottom of the as far as possible close hopper of material sucking port of carrying cylinder, and then making full use of the gravitational potential energy of the slurries such as concrete, improving the suction in the medium pumping procedures such as concrete, is those skilled in the art's technical problems urgently to be resolved hurrily.
Summary of the invention
In view of this, the object of the present invention is to provide a kind of distributing valve, can solve the defect that in prior art, material sucking port mounting point is limited, suction performance is not good.
Distributing valve of the present invention, comprise rotating shaft and with the fixing valve body of described rotating shaft, described rotating shaft is for connecting drive device, on described valve body, offer feeding hole, described feeding hole is used for making discharge nozzle to be alternately communicated with carrying cylinder, on the valve body of the front end both sides of described feeding hole, be provided with prevent surface, on the valve body of the both sides, rear end of described feeding hole, be provided with the face of dodging.
Further, the front end of described valve body comprises the first wearing plate, and described the first wearing plate is fixed on the substrate of valve body, and described prevent surface is positioned on described the first wearing plate.
Further, the rear end of described feeding hole is nested with the first cutting ring.
Further, described valve body thickness reduce gradually to both sides from feeding hole position.
Another aspect of the present invention, a kind of pumping mechanism is also provided, comprise hopper and carry cylinder, discharge nozzle, the port of described conveying cylinder connects a side of described hopper, described discharge nozzle is arranged at the opposite side of described hopper, described pumping mechanism also comprises the distributing valve of aforementioned any one, and described distributing valve is placed in described hopper.
Further, the discharge port that described discharge nozzle comprises multiple material receiving ports and is all communicated with described multiple material receiving ports, described multiple material receiving port was alternately communicated with the front end of the feeding hole of described distributing valve in when work, and was alternately stopped by the prevent surface of described distributing valve.
Further, the quantity of described material receiving port is two, and described discharge nozzle entirety forms Y-piece structure.
Further, described hopper comprises bucket body and lower bucket body, between described upper bucket body and lower bucket body, is formed with blanking port, and described distributing valve is installed in described lower bucket body.
Further, described lower bucket body comprises the rear wall plate and the front wallboard that are parallel to each other, on described rear wall plate, be provided with the second wearing plate, on described the second wearing plate, offer and the opening of carrying the port of cylinder to be communicated with, on described front wallboard, be nested with the second cutting ring, described the second cutting ring is communicated with described discharge nozzle.
Another aspect of the present invention, also provides a kind of concrete pump, and described concrete pump is provided with distributing valve or the pumping mechanism of aforementioned any one.
The invention provides a kind of novel distributing valve, comprise rotating shaft and valve body, on valve body, offer feeding hole, on this external valve body, be also provided with prevent surface and dodge face.Distributing valve of the present invention can be applicable to comprise in the pumping mechanism of multiple conveying cylinders, in the time of work, feeding hole is alternately communicated with discharge nozzle with carrying cylinder, by carrying the alternation of cylinder and distributing valve, what pumped medium replaced is delivered to pouring position from multiple conveying cylinders through feeding hole, discharge nozzle, completes continuous pumpdown.The structure of this distributing valve is ingenious, is easy to manufacturing, and cost is low, and convenient disassembly, and maintenance is good.
While using distributing valve of the present invention, hopper can be made to the structure of regular shape, be easy to, on hopper, the parts such as distributing valve, discharge nozzle, pendulum swing mechanism are carried out to space layout, and the stirring that can ensure pumped medium in hopper is without dead angle; In addition, the present invention can be arranged on hopper lower end by the port of carrying cylinder, and pumped medium can enter conveying cylinder under Action of Gravity Field, by utilizing gravitational potential energy, can improve the suction performance of pumping mechanism.
Further, from pumped medium enters hopper, its runner in pumping mechanism is more unobstructed compared to existing technology, pressure loss is little, swing the mechanical properties such as resistance more superior than S type distributing valve, during due to use, stress is good, thereby also can ensure that the wearing and tearing of contact segment are little, longer service life.
Brief description of the drawings
The accompanying drawing that forms a part of the present invention is used to provide a further understanding of the present invention, and schematic description and description of the present invention is used for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is the explosive view of the distributing valve of one embodiment of the invention;
Fig. 2 a is the structural representation of the distributing valve of one embodiment of the invention;
Fig. 2 b is that the distributing valve of Fig. 2 a illustrated embodiment is at the structural representation in another orientation;
Fig. 3 a is the plan view of the valve body of one embodiment of the invention;
Fig. 3 b is the right elevation of the valve body of one embodiment of the invention;
Fig. 4 is the structural representation of the discharge nozzle of one embodiment of the invention;
Fig. 5 is the structural representation of the pumping mechanism of one embodiment of the invention;
Fig. 6 is the partial schematic diagram of pumping mechanism embodiment illustrated in fig. 5;
Fig. 7 is the structural representation of the hopper of one embodiment of the invention;
Fig. 8 is the structural representation of second wearing plate of one embodiment of the invention;
Fig. 9 a is that the pumping mechanism of one embodiment of the invention is at the schematic diagram of the first working state;
Fig. 9 b is that the pumping mechanism of one embodiment of the invention is at the schematic diagram of the second working state.
Description of reference numerals:
Pendulum valve body-2, swing mechanism-10, rotating shaft-1 feeding hole-20 the first wearing plate-2a prevent surface-2s substrate-21 the first cutting ring-2b carries time master cylinder-63, water tank-62, front wallboard-522 the second wearing plate-5a the second cutting ring-5b pull bar-61, rear wall plate-521, bucket body-52, bucket body-51 on hopper-5, discharge port-42, material receiving port-41, discharge nozzle-4, cylinder-3
Embodiment
It should be noted that, in the situation that not conflicting, the feature in embodiment and embodiment in the present invention can combine mutually.Describe below with reference to the accompanying drawings and in conjunction with the embodiments the present invention in detail.
In the present invention, the orientation of use is all taking pumping direction as benchmark, and carrying the orientation at cylinder place is " afterwards ", and the orientation at hopper place is " front ", pumped medium pumping from back to front when work.
Shown in Fig. 1, be the explosive view of the distributing valve of one embodiment of the invention, Fig. 2 a and Fig. 2 b are that this embodiment's distributing valve is at the structural representation of different azimuth.With reference to above each figure, this embodiment's distributing valve is for comprising the pumping mechanism of multiple conveying cylinders 3, be installed in hopper 5, play a part two or more to carry cylinder 3 feed statuss to switch alternative S type distributing valve of the prior art, gate valve, C shape valve or petticoat valve.
This embodiment's distributing valve comprise rotating shaft 1 and with the fixing valve body 2 of rotating shaft 1, rotating shaft 1 can be welded with valve body 2, or by secure component or other multiple may mode fixing.This rotating shaft 1 is for connecting drive device.This drive unit is preferably pendulum swing mechanism 10, can be also other structures.Structure after this pendulum swing mechanism 10 is connected with rotating shaft 1 can be with reference to figure 5.This pendulum swing mechanism 10 rotates for drive shaft 1, and it can rotate possible angle arbitrarily, and preferably rotation amplitude is a numerical value in 30 ° to 150 °.This pendulum swing mechanism 10 can may structure be connected by spline or other with the rotating shaft of distributing valve 1.
The pendulum swing mechanism that pendulum swing mechanism 10 of the present invention can connect with existing S type distributing valve adopts the same structure.As a kind of mode of execution, pendulum swing mechanism 10 comprises a rocking arm, and in the rocking arm left and right sides, an oblique oil cylinder is set respectively, and when the first state, left oil cylinder stretches out right oil cylinder retraction, when the second state, the left oil cylinder right oil cylinder of retracting stretches out, thereby realizes swinging of rocking arm.Pendulum swing mechanism 10 of the present invention also can be with reference to other existing and improved technology.
The structure of the valve body 2 of previous embodiment also can be with reference to figure 3a and Fig. 3 b, and wherein Fig. 3 a is plan view, and Fig. 3 b is right elevation.On this valve body 2, offer feeding hole 20, feeding hole 20, for discharge nozzle 4 is alternately communicated with carrying cylinder, is provided with prevent surface 2s on the valve body 2 of the front end both sides of feeding hole 20, on the valve body of the both sides, rear end of feeding hole 20, is provided with and dodges face 2p.Preferably the axis of feeding hole 20 is parallel with the axis of rotating shaft 1, is convenient to processing, reduces pumped medium and loses along stroke pressure.
Aforementioned prevent surface 2s is used for cutting off discharge nozzle 4 with hopper 5 and carries cylinder 3, thereby stop pumping pumped medium being oppositely pumped out to hopper 5 or carrying cylinder 3 in this position, the aforementioned face 2p that dodges is communicated with carrying cylinder 3 for ensureing hopper 5, pumped medium suction passage is dodged, avoid valve body take up space itself to stop pumped medium, the patency of runner while ensureing suction.For prevent surface 2s and dodge face 2p, hereinafter will describe in more detail.
In the time that rotating shaft 1 is rotated, band moving valve 2 swings, and pumped medium carries the port of cylinder 3 to enter in feeding hole 20 from certain (or certain is several), and continues to pump forward from the front end of feeding hole 20.The quantity of feeding hole 20 is preferably one, has two pumping mechanisms of carrying cylinder 3 with correspondence, and now the quantity of prevent surface 2s is two.In addition, the quantity of feeding hole 20 also can be two or more, with the conveying cylinder 3 of correspondence multiple possibility quantity (as four).Preferred aforesaid valve body 2 entirety are sector structure, and feeding hole 20 is for through hole and be preferably circular hole, and the area of prevent surface 2s is greater than the area of feeding hole 20, so that coordinate the action (hereinafter will be described) of each conveying cylinder 3.
Because valve body 2 can form sector structure, when work, swing the mechanical properties such as resistance more superior than S type distributing valve, when use, stress is good, thereby also can ensure that the wearing and tearing of contact segment are little, longer service life.
In the time of pumpdown, the front end of feeding hole 20 need contact continually with the hopper in front 5, and the rear end of feeding hole 20 also needs to contact continually with the port of carrying cylinder 3, thereby need bear larger frictional force and impact force in contact segment, be the factor that pumping mechanism must be considered wear resistance, sealing and the working life of contact segment.
Valve body 2 itself can have corresponding wear resistance, preferably, comprises the first wearing plate 2a at the front end of valve body 2, and the first wearing plate 2a is fixed on the substrate 21 of valve body 2, and prevent surface 2s is positioned on the first wearing plate 2a.In addition, on the first wearing plate 2a, also corresponding feeding hole 20, the first wearing plate 2a that offer can be fixed on substrate 21 by multiple screws, in the time that wearing and tearing occur this first wearing plate 2a, can be pulled down and change.This first wearing plate 2a can be made up of cemented carbide.It should be noted that also should there is corresponding wear resistance for the hopper 5 contacting with the first wearing plate 2a, be preferably also provided with wear parts in hopper 5 relevant positions.
Further, be preferably nested with the first cutting ring 2b in the rear end of feeding hole 20, this second cutting ring 2b has wear resistance.The structure of this first cutting ring 2b can be with reference to the cutting ring using in existing and improved S shape distributing valve.In addition, in order to improve sealability, between feeding hole 20 and the first cutting ring 2b, rubber spring also can be set, this rubber spring has the effect of automatic compensation gap.
In pumping mechanism, carry concrete piston in cylinder 3 push pull maneuver that hockets, when concrete piston in conveying cylinder 3 retreats, can be by the pumped medium in hopper 5 passage through dodging face 2p and hopper 5 and forming suck and carry in cylinder 3, and in the time of the concrete piston-advance of carrying in cylinder 3, pumped medium is released to (or claiming to pump) via feeding hole 20, be to be understood that, the working state of distributing valve is corresponding with the action of carrying cylinder, the concrete piston-advance in the conveying cylinder 3 being communicated with feeding hole 20, concrete piston in the conveying cylinder 3 corresponding with dodging face 2p retreats, thereby orderly carry out uninterrupted pumping operation.The patency of runner when keeping pumped medium to be inhaled into, valve body 2 itself takes up space and can not stop pumped medium, thereby preferably the thickness of valve body 2 reduces to both sides gradually from feeding hole 20 positions, the rear end of valve body 2 comprises inclined-plane, can be with reference to the right elevation of figure 3b, the side of valve body 2 is trapezium structure.As another kind of mode of execution, the rear end of valve body 2 is plane structure, and position, sprocket hole rear end protrudes from valve body 2, equally also can form the aforementioned face 2p that dodges.Previous embodiment of the present invention provides novel distributing valve, in the time of work, the feeding hole 20 of distributing valve is alternately communicated with the port of carrying cylinder 3, the push pull maneuver replacing by the concrete piston of carrying in cylinder 3, can provide power that pumped medium is delivered to pouring position through feeding hole 20, complete continuous pumpdown.The structure of this distributing valve is ingenious, is easy to manufacturing, and cost is low, and convenient disassembly, and maintenance is good.
Pumped medium is pushed to feeding hole 20 front ends, be connected with the delivery pipe of pumping mechanism, due to the change in location of feeding hole 20 in the time swinging, in order to ensure being communicated with of feeding hole 20 and delivery pipe, multiple possibility parts can be set in the middle of them, preferably be provided with the discharge nozzle 4 shown in Fig. 4.This discharge nozzle 4 is used in conjunction with distributing valve, a discharge port 42 that comprises multiple material receiving ports 41 and be all communicated with multiple material receiving ports 41, multiple material receiving ports 41 were alternately communicated with the front end of the feeding hole 20 of distributing valve in when work, and the prevent surface 2s that is alternately assigned with valve stops.
The quantity of material receiving port 41 is identical with the quantity of conveying cylinder 3, and guarantee distributing valve can be connected discharge nozzle 4 and carry cylinder 3 at different station, and preferably the quantity of material receiving port 41 is two, the Y-piece structure shown in the overall formation Fig. 4 of discharge nozzle 4.Two material receiving ports 41 are respectively left material receiving port and right material receiving port, and when a working state, left material receiving port is communicated with feeding hole 20 therein, and right material receiving port is stopped by the prevent surface 2s on feeding hole 20 right sides; In the time of another working state, right material receiving port is communicated with feeding hole 20, and left material receiving port is stopped by the prevent surface 2s in feeding hole 20 left sides.
Install after the distributing valve of previous embodiment, the structural representation of the pumping mechanism of one embodiment of the invention can be with reference to figure 5 and Fig. 6.Wherein Fig. 5 is overall schematic, and Fig. 6 is partial schematic diagram.This embodiment's pumping mechanism at least comprises hopper 5, carries cylinder 3 and discharge nozzle 4, carry the port of cylinder 3 to connect a side of hopper 5, discharge nozzle 4 is arranged at the opposite side of hopper 5, and this pumping mechanism also comprises the distributing valve of previous embodiment in addition, and this distributing valve is arranged in hopper 5.Should be clear, except hopper 5, distributing valve, conveying cylinder 3 and discharge nozzle 4, pumping mechanism also comprises the parts such as pull bar 61, water tank 62, master cylinder 63, and each several part can be with reference to existing and improved technology, and emphasis of the present invention is not involved in this.
Due to structure and the working method of distributing valve uniqueness of the present invention, can be installed on position lower on hopper 5, in the time of suction, can make full use of the gravitational potential energy of pumped medium.Hopper 5 of the present invention can have multiple possibility structure, and preferably as shown in Figure 7, hopper 5 comprises bucket body 51 and lower bucket body 52, between upper bucket body 51 and lower bucket body 52, is formed with blanking port, and distributing valve is installed in lower bucket body 52.On upper bucket body 51, stirring system can be installed, pumped medium in bucket body 52, is then inhaled into and carries in cylinder 3 under gravity and stirring system effect from blanking port enters.Blanking port can be made into less size, and at the runner of the interior formation pumped medium of hopper 5, this runner is unobstructed, pressure loss is little, can ensure good suction performance.
In addition, hopper 5 of the present invention can be made into the structure of regular shape, manufactures simply, and cost is low, be convenient to the parts such as distributing valve, discharge nozzle 4, pendulum swing mechanism 10 be carried out to space layout thereon, and the stirring that can ensure hopper 5 interior pumped medium is without dead angle.In the embodiment shown in fig. 7, lower bucket body 52 comprises the rear wall plate 521 and the front wallboard 522 that are parallel to each other, and blanking port has two parallel limits, and more preferably blanking port is regular quadrilateral hole.
Lower bucket body 52 can have enough wear-resisting propertys, preferably on rear wall plate 521, be provided with the second wearing plate 5a, on the second wearing plate 5a, offer and the opening of carrying the port of cylinder 3 to be communicated with, on front wallboard 522, be nested with the second cutting ring 5b, this second cutting ring 5b has wear resistance, and is communicated with discharge nozzle 4.
The second wearing plate 5a is positioned at rear wall plate 521 inner sides, and can fix by the screw that is easy to dismounting.This second wearing plate 5a can be in contact with one another with the first cutting ring 2b of distributing valve, bears frictional force and impact force.The present invention can be in rotating shaft 1 mounting nuts or other may fastening structure, bonded to each other to ensure corresponding contact segment.Preferably the open amount on the second wearing plate 5a is two, and as shown in Figure 8, its structure is analogous to the glasses plate using in the S shape distributing valve of prior art.
In addition, the quantity of the second cutting ring 5b is preferably two, between front wallboard 522 and the second cutting ring 5b, the rubber spring with automatic compensation gap function also can be set.
Below in conjunction with Fig. 9 a and Fig. 9 b, the working principle of the pumping mechanism to previous embodiment describes, and shown in Fig. 9 a, is wherein the schematic diagram in the first working state, is the schematic diagram in the second working state shown in Fig. 9 b.
In the time of the first working state, the feeding hole 20 of distributing valve is communicated with the port of left conveying cylinder, and lower bucket body 52 is communicated with the port of right conveying cylinder.Under the gravity of pumped medium own and stirring system acting in conjunction, pumped medium enters the cavity of lower bucket body 52 by blanking port, and under the pull of vacuum that the concrete piston return motion in right conveying cylinder causes, pumped medium sucks right conveying cylinder.Meanwhile, the front end of feeding hole 20 is communicated with the left material receiving port of discharge nozzle 4, and under the thrust of the concrete piston-advance motion in left conveying cylinder, the pumped medium in left conveying cylinder, after feeding hole 20 and left material receiving port, is pumped away.The right material receiving port of discharge nozzle 4 is assigned with the prevent surface 2s isolation of valve, can form and dodge between face 2p and hopper the runner that sucks pumped medium, and can avoid inhaling empty.
In the time of the second working state, under the effect of pendulum swing mechanism 10 reciprocating forces, valve body 2 is 1 axis oscillating around the shaft, the feeding hole 20 of distributing valve is communicated with the port of right conveying cylinder, lower bucket body 52 is communicated with the port of left conveying cylinder, the front end of feeding hole 20 is communicated with the right material receiving port of discharge nozzle 4, and the left material receiving port of discharge nozzle 4 is assigned with the prevent surface 2s isolation of valve.The suction of pumped medium with pump direction and the first working state is just in time contrary, do not repeat at this.
Afterwards, then under the effect of pendulum swing mechanism 10 reciprocating forces, valve body 2 swings back to the first working state position, and so forth, has realized the sucking pump of pumped medium alternately, and then pumped medium is pumped continuously.
Except the distributing valve and pumping mechanism of previous embodiment, the present invention also provides a kind of concrete pump that is provided with previous embodiment.This concrete pump can be concrete mixer, Vehicle loaded pump or drags pump etc.The other parts of this concrete pump can be with reference to existing and improved technology as traveller, power system, electrical system, hydraulic system etc., and this paper does not repeat at this.
It should be noted that, except being applied to concrete pumping, distributing valve of the present invention and pumping mechanism also can be used for other multiple possible pumped medium, and as mud, water etc., the present invention is not limited to this.
The foregoing is only preferred embodiment of the present invention, in order to limit the present invention, within the spirit and principles in the present invention not all, any amendment of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (10)
1. a distributing valve, it is characterized in that, comprise rotating shaft (1) and with the fixing valve body (2) of described rotating shaft (1), described rotating shaft (1) is for connecting drive device, on described valve body (2), offer feeding hole (20), described feeding hole (20) is for being alternately communicated with discharge nozzle (4) with carrying cylinder (3), on the valve body (2) of the front end both sides of described feeding hole (20), be provided with prevent surface (2s), on the valve body (2) of the both sides, rear end of described feeding hole (20), be provided with the face of dodging (2p).
2. distributing valve according to claim 1, it is characterized in that, the front end of described valve body (2) comprises the first wearing plate (2a), described the first wearing plate (2a) is fixed on the substrate (21) of valve body (2), and described prevent surface (2s) is positioned on described the first wearing plate (2a).
3. distributing valve according to claim 1, is characterized in that, the rear end of described feeding hole (20) is nested with the first cutting ring (2b).
4. distributing valve according to claim 1, is characterized in that, the thickness of described valve body (2) reduces to both sides gradually from feeding hole (20) position.
5. a pumping mechanism, comprise hopper (5) and carry cylinder (3), discharge nozzle (4), the port of described conveying cylinder (3) connects a side of described hopper (5), described discharge nozzle (4) is arranged at the opposite side of described hopper (5), it is characterized in that, described pumping mechanism also comprises the distributing valve described in claim 1-4 any one, and described distributing valve is placed in described hopper (5).
6. pumping mechanism according to claim 5, it is characterized in that, the discharge port (42) that described discharge nozzle (4) comprises multiple material receiving ports (41) and is all communicated with described multiple material receiving ports (41), described multiple material receiving port (41) was alternately communicated with the front end of the feeding hole (20) of described distributing valve in when work, and was alternately stopped by the prevent surface of described distributing valve (2s).
7. pumping mechanism according to claim 6, is characterized in that, the quantity of described material receiving port (41) is two, and described discharge nozzle (4) entirety forms Y-piece structure.
8. pumping mechanism according to claim 5, it is characterized in that, described hopper (5) comprises bucket body (51) and lower bucket body (52), between described upper bucket body (51) and lower bucket body (52), be formed with blanking port, described distributing valve is installed in described lower bucket body (52).
9. pumping mechanism according to claim 8, it is characterized in that, described lower bucket body (52) comprises the rear wall plate (521) and the front wallboard (522) that are parallel to each other, on described rear wall plate (521), be provided with the second wearing plate (5a), on described the second wearing plate (5a), offer and the opening of carrying the port of cylinder (3) to be communicated with, on described front wallboard (522), be nested with the second cutting ring (5b), described the second cutting ring (5b) is communicated with described discharge nozzle (4).
10. a concrete pump, is characterized in that, described concrete pump is provided with the pumping mechanism described in distributing valve or the claim 5-9 any one described in claim 1-4 any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410380591.XA CN104153988B (en) | 2014-08-05 | 2014-08-05 | Distributing valve, pumping mechanism and concrete pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410380591.XA CN104153988B (en) | 2014-08-05 | 2014-08-05 | Distributing valve, pumping mechanism and concrete pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104153988A true CN104153988A (en) | 2014-11-19 |
| CN104153988B CN104153988B (en) | 2016-08-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410380591.XA Active CN104153988B (en) | 2014-08-05 | 2014-08-05 | Distributing valve, pumping mechanism and concrete pump |
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| CN (1) | CN104153988B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109989900A (en) * | 2019-05-24 | 2019-07-09 | 徐州徐工施维英机械有限公司 | Pasty material conveying device and its control method and engineering truck |
| WO2020019628A1 (en) * | 2018-07-24 | 2020-01-30 | 山东科技大学 | Pulse-free wet spraying machine |
| WO2020019626A1 (en) * | 2018-07-24 | 2020-01-30 | 山东科技大学 | Pulse-free spraying machine |
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| CA2203708A1 (en) * | 1997-04-25 | 1998-10-25 | Chin-Yen Kao | Improved structure pump valve for concrete mixture pumping trucks |
| CN2319637Y (en) * | 1997-11-12 | 1999-05-19 | 湖北建设机械股份有限公司 | S-pipe concrete distribution valve |
| AU2005201911A1 (en) * | 2004-07-22 | 2006-02-09 | Sciulli Bros Pty Ltd | A concrete pump valve |
| CN1804398A (en) * | 2006-01-23 | 2006-07-19 | 三一重工股份有限公司 | Distributing valve for concrete pump |
| CN101245866A (en) * | 2008-03-24 | 2008-08-20 | 三一重工股份有限公司 | Concrete distributing valve and concrete pumping mechanism |
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2014
- 2014-08-05 CN CN201410380591.XA patent/CN104153988B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2203708A1 (en) * | 1997-04-25 | 1998-10-25 | Chin-Yen Kao | Improved structure pump valve for concrete mixture pumping trucks |
| CN2319637Y (en) * | 1997-11-12 | 1999-05-19 | 湖北建设机械股份有限公司 | S-pipe concrete distribution valve |
| AU2005201911A1 (en) * | 2004-07-22 | 2006-02-09 | Sciulli Bros Pty Ltd | A concrete pump valve |
| CN1804398A (en) * | 2006-01-23 | 2006-07-19 | 三一重工股份有限公司 | Distributing valve for concrete pump |
| CN101245866A (en) * | 2008-03-24 | 2008-08-20 | 三一重工股份有限公司 | Concrete distributing valve and concrete pumping mechanism |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020019628A1 (en) * | 2018-07-24 | 2020-01-30 | 山东科技大学 | Pulse-free wet spraying machine |
| WO2020019626A1 (en) * | 2018-07-24 | 2020-01-30 | 山东科技大学 | Pulse-free spraying machine |
| CN109989900A (en) * | 2019-05-24 | 2019-07-09 | 徐州徐工施维英机械有限公司 | Pasty material conveying device and its control method and engineering truck |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104153988B (en) | 2016-08-31 |
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