CN102032134B - Telescopic water pump device and water pump system - Google Patents

Telescopic water pump device and water pump system Download PDF

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Publication number
CN102032134B
CN102032134B CN 201010596411 CN201010596411A CN102032134B CN 102032134 B CN102032134 B CN 102032134B CN 201010596411 CN201010596411 CN 201010596411 CN 201010596411 A CN201010596411 A CN 201010596411A CN 102032134 B CN102032134 B CN 102032134B
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water
piston
oil
way valve
valve
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CN102032134A (en
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杨新华
连彬
孙丹
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Sany Heavy Industry Co Ltd
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Sany Heavy Industry Co Ltd
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Abstract

The invention relates to the technical field of water pumps and discloses a telescopic water pump device. The telescopic water pump device comprises a connection flange, an oil tank body, a water tank body and a piston rod, wherein the oil tank body and the water tank body are arranged on two sides of the connection flange respectively; two ends of the piston rod are respectively sleeved in the oil tank body and the water tank body; and the oil tank body and the water tank body are arranged at two ends of the piston rod respectively. The distance from the pressing point between an oil tank piston or a water tank piston and the connection flange to the other end of the piston rod is not greater than the distance from the pressing point between the oil tank piston or the water tank piston and the connection flange to the bottom of the water tank body or the bottom of the oil tank body. The impact force to the tank bottoms of the telescopic water pump device is relatively low; the tank bottom structures are simple; and the telescopic water pump device has a relatively small volume. The invention also relates to a water pump system with the telescopic water pump device.

Description

A kind of telescopic pumping plant and water pump system
Technical field
The present invention relates to the pump technology field, relate in particular to a kind of telescopic pumping plant that drives by hydraulic oil source.The invention still further relates to a kind of water pump system with above-mentioned telescopic pumping plant.
Background technique
When main equipments such as cleaning concrete pump truck since these main equipment volumes greatly, highly high, human body is difficult for getting at, and adopts the stronger equipment of impact force such as pumping plant that it is cleaned usually.
Application number is that 200420115194.1 Chinese patent discloses the single piston pump device of a kind of pulsed, please referring to the specification and the accompanying drawing of this patent.
This pumping plant comprises water vat, oil cylinder, in the seal groove of cylinder seal dress oil-inlet end piston and the seal groove of piston rod left end, holds piston to pack into and relies on the shaft shoulder of piston rod to position from the left end of piston rod oil, and by back-up ring, block key and be fixed; The water vat seal ring is packed in the seal groove of seal groove and piston rod right-hand member of water end (W.E.) piston, the water end (W.E.) piston is packed into and is relied on the shaft shoulder of piston rod to position from the right-hand member of piston rod, and be fixed by back-up ring, card key, semi-ring; Seal ring is packed in the seal groove of guide sleeve; Guide sleeve is packed into and is placed on the position, intermediate portion from an end of piston rod; Oil end cylinder barrel passes oil end piston and relies on the left end seam of guide sleeve to position, and the left end stop portion of oil end cylinder barrel and guide sleeve is equipped with sealing gasket; The water end (W.E.) cylinder barrel passes the water end (W.E.) piston and relies on the right-hand member seam of guide sleeve to position, and the right-hand member stop portion of water end (W.E.) cylinder barrel and guide sleeve is provided with sealing gasket; The left end of cylinder tube relies on the seam of oil end end cap to position assembling; The right-hand member of water end (W.E.) cylinder barrel relies on the seam of water end (W.E.) end cap to position assembling; Double-screw bolt passes the hole of oil end end cap and water end (W.E.) end cap; Through spring washer, nut above each part is fastened as one, on guide sleeve and the water end (W.E.) end cap one-way valve is housed respectively; Position limit switch holds a chamber through being threaded with the piston rod left end is promptly oily.
The single piston pump device of the pulsed of this structure; Oil end piston, water end (W.E.) piston all are to rely on the shaft shoulder of piston rod to position; Promptly the axle head of oil end piston or water end (W.E.) piston also is that cylinder bottom is spacing through realizing oily location of holding piston or water end (W.E.) piston against the cylinder bottom of cylinder body or the cylinder bottom of water vat body, and oil end piston or water end (W.E.) piston all have bigger impact force in the process of motion; When the cylinder bottom of cylinder bottom that clashes into cylinder body or water vat body; The cylinder bottom of the cylinder bottom of cylinder body or water vat body is stressed all bigger, and then makes the cylinder bottom easy of crack of cylinder bottom or water vat body of cylinder body, and this just requires the structure of cylinder bottom enough reliable; Cause the structure of cylinder bottom heavy, bulky, weight is big.
Therefore, how to develop the pumping plant that the suffered impact force of a kind of cylinder bottom is less, cylinder bottom is simple in structure, volume is little, become the technical barrier that those skilled in the art need to be resolved hurrily.
Summary of the invention
First purpose of the present invention provides a kind of telescopic pumping plant, and the suffered impact force of the cylinder bottom of this telescopic pumping plant is less, cylinder bottom is simple in structure, volume is less.Second purpose of the present invention provides a kind of water pump system with above-mentioned telescopic pumping plant.
In order to realize above-mentioned first purpose; The invention provides a kind of telescopic pumping plant; Comprise adpting flange, cylinder body, water vat body and piston rod; Said cylinder body, said water vat body are connected in the both sides of said adpting flange respectively; The two ends of said piston rod are placed in the said cylinder body respectively, in the said water vat body; The two ends of said piston rod are respectively equipped with oil cylinder piston, water vat piston, and the distance against point to the other end of said piston rod of said oil cylinder piston or said water vat piston and said adpting flange is not more than the distance bottom point to said water vat body bottom or the said cylinder body of said adpting flange and said oil cylinder piston or said water vat piston.
Preferably, the socket place of said piston rod and said adpting flange is provided with oil seal circle and waterstop ring side by side, and the cavity between said oil seal circle, said waterstop ring, said adpting flange, the said piston rod is in communication with the outside.
Preferably, said adpting flange and said piston rod socket place are provided with first boss, second boss that extends to adpting flange left and right sides direction respectively.
Preferably, the medial extremity of said oil cylinder piston is provided with the oil cylinder piston groove, and said first boss is against the bottom of said oil cylinder piston groove.
Preferably, the medial extremity of said water vat piston is provided with water vat pistion recess, said second boss bottom against said water vat pistion recess.
Preferably, be provided with the screw of locking effect between water vat piston or oil cylinder piston and the said piston rod.
Preferably, the outboard end of said screw is provided with jump ring.
Telescopic pumping plant provided by the invention comprises adpting flange, cylinder body, water vat body, piston rod and is located at oil cylinder piston, the water vat piston at piston rod two ends respectively, oil cylinder piston and adpting flange against put to the distance of the outboard end of water vat piston be not more than adpting flange and oil cylinder piston against putting to the distance of water vat bottom; The distance against point to the outboard end of said oil cylinder piston of perhaps said water vat piston and said adpting flange is not more than the distance bottom point to the said cylinder body of said adpting flange and said water vat piston.
The telescopic pumping plant of this structure; Because the length of piston rod is limited, make oil cylinder piston and adpting flange against put to the distance of the outboard end of water vat piston be not more than adpting flange and oil cylinder piston against the distance of putting bottom the water vat, piston rod is in the to-and-fro motion process; The water vat piston motion is near water vat body cylinder bottom the time; The oil cylinder piston flange that is connected, the location of realizing piston rod, the water vat end of piston rod can not clash into the cylinder bottom of water vat body; The cylinder bottom of water vat body is not easy to crack; Therefore the cylinder bottom of water vat body can adopt cylinder bottom simple in structure, that volume is less, weight is less, can optimize the cylinder bottom structure greatly, reduces the volume and weight of telescopic pumping plant.
The telescopic pumping plant of this structure, piston rod are in the to-and-fro motion process, and cylinder piston motion is near cylinder block the time; Water vat piston abuts adpting flange, the location of realizing piston rod, the oil cylinder end of piston rod can not clash into the cylinder bottom of cylinder body; The cylinder bottom of cylinder body is not easy to crack; Therefore the cylinder bottom of cylinder body can adopt cylinder bottom simple in structure, that volume is less, weight is less, can optimize the cylinder bottom structure greatly, reduces the volume and the weight of telescopic pumping plant.
In the preferred scheme, the socket place of said piston rod and said adpting flange is provided with oil seal circle and waterstop ring side by side, and the cavity between said oil seal circle, said waterstop ring, said adpting flange, the said piston rod is in communication with the outside.Cavity between said oil seal circle, said waterstop ring, said adpting flange, the said piston rod forms the oil-water separation chamber; The water that leaks through the oil seal circle in the water vat body can directly get in the oil-water separation chamber and discharge; And can not get in the cylinder body through the oil seal circle again, can avoid hydraulic system to be polluted by water, same; The hydraulic oil that leaks through the oil seal circle in the cylinder body can directly get in the oil-water separation chamber and discharge, and can not get into water vat internal pollution water through waterstop ring again.
In the preferred scheme, the inboard of oil cylinder piston is provided with the oil cylinder piston groove that matches with first boss of adpting flange oil cylinder side, and first boss can be against the bottom of oil cylinder piston groove.This structure can reduce the gap between oil cylinder piston and the adpting flange not changing between oil cylinder piston and the cylinder body in the sealing intensity, can make full use of the endoceliac space of oil cylinder, and then increases the stroke of oil cylinder piston; When guaranteeing that cylinder body inner cylinder piston has a certain amount of stroke, can shorten the length of cylinder body, and then can reduce the volume of telescopic water pump equally.
In the preferred scheme, the medial extremity of said water vat piston is provided with the water vat pistion recess, and said second boss is against the bottom of said water vat pistion recess.This structure can reduce the gap between water vat piston and the adpting flange not changing between water vat piston and the water vat body in the sealing intensity, can make full use of the endoceliac space of water vat, and then increases the stroke of water vat piston; When the water vat piston has a certain amount of stroke in guaranteeing the water vat body equally, can shorten the length of water vat body, and then can reduce the volume of telescopic water pump.
In order to realize above-mentioned second purpose, the invention provides a kind of water pump system, this water pump system comprises above-mentioned telescopic pumping plant and the water distribution system that is driven by hydraulic oil source.Because above-mentioned telescopic pumping plant possesses above-mentioned technique effect, the water pump system with this telescopic pumping plant also should have the corresponding techniques effect.
Preferably, said water distribution system comprises first one-way valve, second one-way valve, the 3rd one-way valve, the 4th one-way valve; The water intake of first one-way valve, second one-way valve all is communicated with the water source, and water outlet is communicated with rod chamber, the rodless cavity of water vat body respectively; Pipeline connection between the water outlet of the water intake of the 4th one-way valve and said first one-way valve, the said rod chamber; Pipeline connection between the water outlet of the water intake of said the 3rd one-way valve and second one-way valve, the said rodless cavity, the water outlet of the water outlet of said the 3rd one-way valve, the 4th one-way valve all is connected with water spray projector system.
Preferably, said water distribution system is the water distribution valve piece, and said water distribution valve piece is provided with and is respectively applied for first valve pocket, second valve pocket, the 3rd valve pocket, the 4th valve pocket that holds said first one-way valve, second one-way valve, the 3rd one-way valve, the 4th one-way valve.
Preferably; Said water distribution system comprises the water selector valve; The water intake of this water selector valve is communicated with the water source, and first water outlet of said water selector valve, second water outlet are communicated with rod chamber, the rodless cavity of water vat body respectively, the backwater mouth of said water selector valve is communicated with water spray projector system.
Preferably; Said hydraulic oil source comprises the oil hydraulic pump that is communicated with fuel tank, oily selector valve; The oil outlet of said oil hydraulic pump is communicated with the filler opening of said oily selector valve; First oil outlet of said oily selector valve, second oil outlet are communicated with rod chamber, the rodless cavity of said cylinder body respectively, and the return opening of said oily selector valve is communicated with fuel tank.
Preferably; Also comprise and be respectively applied for the rod chamber that detects said cylinder body, first oil pressure sensor, second oil pressure sensor of the interior oil pressure of rodless cavity; First oil pressure sensor or the detected oil pressure of second oil pressure sensor be during greater than predefined value, said oily selector valve switching-over.
Description of drawings
Fig. 1 is the sectional structure schematic representation of a kind of embodiment of telescopic pumping plant provided by the present invention;
Fig. 2 is the broken section structural representation of telescopic water pump among Fig. 1;
Fig. 3 is the structural representation in oil-water separation chamber among Fig. 1;
Fig. 4 is the principle schematic of water pump system provided by the present invention;
Fig. 5 is the structural representation of water distribution system among Fig. 4;
Fig. 6 is the main TV structure schematic representation that the water distribution valve piece is connected with telescopic water pump;
Fig. 7 is the plan structure schematic representation that the water distribution valve piece is connected with telescopic water pump;
Fig. 8 is the sectional structure schematic representation that the water distribution valve piece is connected with telescopic water pump;
Fig. 9 is the side-looking structural representation that the water distribution valve piece is connected with telescopic water pump;
Wherein, among Fig. 1-Fig. 9:
Adpting flange 1; First boss 11; Second boss 12; Oil-water separation chamber 13; Blind flange 14; Oil seal circle 15; Waterstop ring 16; First dust ring 17; Second dust ring 18; Guide ring 19; Screw 110; Cylinder body 2; First hydraulic fluid port 21; Second hydraulic fluid port 22; Water vat body 3; First mouth of a river 31; Second mouth of a river 32; Piston rod 4; Oil cylinder piston 5; Seal ring 51; Guide ring 52; Oil cylinder piston groove 53; Screw 54; Jump ring 55; Water vat piston 6; Seal ring 61; Guide ring 62; The one O shape circle 71; The 2nd O shape circle 72; Screw 73;
Oil hydraulic pump 81, oily selector valve 82, safety valve 83, first oil pressure sensor 84, second oil pressure sensor 85, water distribution valve piece 90, first one-way valve 91, second one-way valve 92, the 3rd one-way valve 93, the 4th one-way valve 94, water sucking mouth 95, first water intake 96, second water intake 97, water outlet 98.
Embodiment
In order to make those skilled in the art better understand technological scheme of the present invention, the present invention is done further detailed description below in conjunction with accompanying drawing and embodiment.
Please referring to Fig. 1-Fig. 3, Fig. 1 is the sectional structure schematic representation of a kind of embodiment of telescopic pumping plant provided by the present invention; Fig. 2 is the broken section structural representation of telescopic water pump among Fig. 1; Fig. 3 is the structural representation in oil-water separation chamber among Fig. 1.
Like Fig. 1-shown in Figure 3; Telescopic pumping plant provided by the invention comprises adpting flange 1, cylinder body 2, water vat body 3, piston rod 4; Cylinder body 2, water vat body 3 all are tubular, and cylinder body 2, water vat body 3 are connected in the both sides of adpting flange 1 respectively, in the concrete scheme; Cylinder body 2, water vat body 3 all can form bolt with adpting flange 1 through screw 73 and be connected; In order to improve the sealing between cylinder body 2, water vat body 3 and the adpting flange 1, can between cylinder body 2 and adpting flange 1, be provided with O shape circle 71, can between water vat body 3 and adpting flange 1, be provided with O shape circle 72.
Piston rod 4 and adpting flange 1 suit; Be provided with Sealing between piston rod 4 and the adpting flange 1, improving the sealing between the two, the two ends of piston rod 4 are placed in the cylinder body 2 respectively, in the water vat body 3; The two ends of piston rod 4 are respectively equipped with oil cylinder piston 5, water vat piston 6; In the concrete scheme, seal ring 51 and guide ring 52 can be provided with between oil cylinder piston 5 and the cylinder body 2, seal ring 61 and guide ring 62 can be provided with between water vat piston 6 and the cylinder body 2; Form rod chamber and rodless cavities in the cylinder body 2, be respectively equipped with first hydraulic fluid port 21, second hydraulic fluid port 22 that are communicated with rodless cavity, rod chamber on the cylinder body 2; Form rod chamber and rodless cavities in the water vat body 3, be respectively equipped with first mouth of a river 31, second mouth of a river 32 that are communicated with rod chamber, rodless cavity on the water vat body 3.
Oil cylinder piston 5 and adpting flange 1 against put to the distance L 1 of the outboard end of water vat piston 6 be not more than adpting flange 1 and oil cylinder piston 5 against putting to the distance L 2 of water vat bottom.
The telescopic pumping plant of this structure; Because the length of piston rod 4 is limited, make oil cylinder piston 5 and adpting flange 1 against put to the distance of the outboard end of water vat piston 6 be not more than adpting flange 1 and oil cylinder piston 5 against putting to the distance of water vat bottom, piston rod 4 is in the to-and-fro motion process; When water vat piston 6 moves near water vat body 3 cylinder bottoms; Oil cylinder piston 5 flange 1 that is connected, the location of realizing piston rod 4, the water vat end of piston rod 4 can not clash into the cylinder bottom of water vat body 3; The cylinder bottom of water vat body 3 is not easy to crack; Therefore the cylinder bottom of water vat body 3 can adopt cylinder bottom simple in structure, that volume is less, weight is less, can optimize the cylinder bottom structure greatly, reduces the volume and weight of telescopic pumping plant.
The distance against the outboard end of point to said oil cylinder piston 5 of water vat piston 6 and adpting flange 1, be not more than adpting flange 1 with state water vat piston 6 against putting to the distance of cylinder body 2 bottoms.
The telescopic pumping plant of this structure, piston rod 4 are in the to-and-fro motion process, when oil cylinder piston 5 moves near cylinder block; Water vat piston 6 flange 1 that is connected, the location of realizing piston rod 4, the oil cylinder end of piston rod 4 can not clash into the cylinder bottom of cylinder body 2; The cylinder bottom of cylinder body 2 is not easy to crack; Therefore the cylinder bottom of cylinder body 2 can adopt cylinder bottom simple in structure, that volume is less, weight is less, can optimize the cylinder bottom structure greatly, reduces the volume and the weight of telescopic pumping plant.
In the preferred scheme; Piston rod 4 is provided with oil seal circle 15 and waterstop ring 16 side by side with adpting flange 1 socket place; Cavity between oil seal circle 15, waterstop ring 16, adpting flange 1, the piston rod 4 forms oil-water separation chamber 13; This oil-water separation chamber 13 is in communication with the outside, the outside that hydraulic oil in the profit separate cavities or water all can drain into telescopic pumping plant.The water that leaks through oil seal circle 15 in the water vat body 3 can directly get in the oil-water separation chamber 13 and discharge; And can not get in the cylinder body 2 through oil seal circle 15 again; Can avoid hydraulic system to be polluted by water; Equally, the hydraulic oil that leaks through oil seal circle 15 in the cylinder body 2 can directly get in the oil-water separation chamber 13 and discharge, and can not get into water vat body 3 internal contamination water through waterstop ring 16 again.
Further in the scheme, get in the cylinder body 2, first dust ring 17 can be set between oil-water separation chamber 13 and oil seal circle 15 in order to prevent extraneous dust, impurity; In order to prevent that extraneous dust, impurity from getting in the water vat body 3, can be provided with second dust ring 18 between oil-water separation chamber 13 and waterstop ring 16.
In the more excellent scheme, can pass through adpting flange 1 swimmingly, can between piston rod 4 and adpting flange 1, be provided with guide ring 19 in order to guarantee piston rod 4.
In the concrete scheme; For the socket place at adpting flange 1 and piston rod 4 can hold Sealing and oil-water separation chambeies 13 such as oil seal circle 15, waterstop ring 16; Adpting flange 1 extends to adpting flange 1 left and right sides respectively with piston rod 4 socket places; Form respectively first boss 11, second boss, 12, the first boss 11, second boss 12 all with piston rod 4 sockets.
In the preferred version; The medial extremity of oil cylinder piston 5 is provided with oil cylinder piston groove 53; Oil cylinder piston groove 53 can hold said first boss, 11, the first boss 11 can be against the bottom of oil cylinder piston groove 53, promptly the bottom of oil cylinder piston groove 53 be adpting flange 1 with oil cylinder piston 5 against point.
This structure can reduce the gap between oil cylinder piston 5 and the adpting flange 1 not changing between oil cylinder piston 5 and the cylinder body 2 in the sealing intensity, can make full use of the space in cylinder body 2 chambeies, and then increases the stroke of oil cylinder piston 5; When guaranteeing that cylinder body 2 inner cylinder pistons 5 have a certain amount of stroke, can shorten the length of cylinder body 2, and then can reduce the volume of telescopic water pump equally.
In the preferred version; The medial extremity of water vat piston 6 is provided with the water vat pistion recess; The water vat pistion recess can hold said second boss, 12, the second boss 12 can be against the bottom of water vat pistion recess, promptly the bottom of water vat pistion recess be adpting flange 1 with water vat piston 6 against point.
In the concrete scheme, the outside of second boss 12 is provided with blind flange 14, and blind flange 14 is fixing through the screw 110 and second boss 12, and the shape of water vat pistion recess can adapt with the size of blind flange 14, and promptly blind flange 14 can be against the bottom of water vat pistion recess.
This structure can reduce the gap between water vat piston 6 and the adpting flange 1 not changing between water vat piston 6 and the water vat body 3 in the sealing intensity, can make full use of the space in water vat body 3 chambeies, and then increases the stroke of water vat piston 6; When water vat piston 6 has a certain amount of stroke in guaranteeing water vat body 3 equally, can shorten the length of water vat body 3, and then can reduce the volume of telescopic water pump.
In the preferred scheme; Oil cylinder piston 5 can in order to prevent to occur loosening phenomenon between oil cylinder piston 5 and the piston rod 4, can be provided with the screw 54 that loosens effect between oil cylinder piston 5 and the piston rod 4 through being threaded with piston rod 4; This structure can make the compact structure of piston rod 4; Not only can shorten the length of piston, also save the screw of piston axially locating, can reduce the total length of telescopic pumping plant greatly.
In the more excellent scheme, the outboard end of screw 54 is provided with jump ring 55, and jump ring 55 can increase the reliability that screw 54 connects, and prevents that loosening phenomenon from appearring in screw 54, and then is provided the working life of whole telescopic pumping plant.
Equally, water vat piston 6 can adopt above-mentioned Placement with being connected also of piston rod 4, no longer is described in detail at this.
The present invention also provides a kind of water pump system, and following examples combine accompanying drawing that this water pump system is introduced.
Please referring to Fig. 4, Fig. 4 is the principle schematic of water pump system provided by the present invention.
As shown in Figure 4; Water pump system provided by the invention comprises pumping plant, the water distribution system that is driven by hydraulic oil source; Pumping plant is the described telescopic pumping plant of the foregoing description; Hydraulic oil source can be oil hydraulic pump 81, and water distribution system is used for to the rod chamber of the water vat body 3 of pumping plant or rodless cavity moisturizing, and can the high pressure water that produce in rod chamber or the rodless cavity be drained into desired location.
This water pump system comprises above-mentioned telescopic pumping plant and the water distribution system that is driven by hydraulic oil source.Because above-mentioned telescopic pumping plant possesses above-mentioned technique effect, the water pump system with this telescopic pumping plant also should have the corresponding techniques effect, introduces no longer in detail at this.
In the concrete mode of execution, said hydraulic oil source can comprise oil hydraulic pump 81, the oily selector valve 82 that is communicated with fuel tank, and the filler opening of oil hydraulic pump 81 is communicated with oil sources, and oil outlet is communicated with the filler opening of oily selector valve 82; First oil outlet, second oil outlet of oil selector valve 82 are communicated with rod chamber, the rodless cavity of cylinder body 2 respectively; Particularly; First oil outlet, second oil outlet of oil selector valve 82 can be respectively be communicated with first hydraulic fluid port 21, second hydraulic fluid port 22, and the return opening of said oily selector valve 82 is communicated with fuel tank.
In the preferred scheme, can be provided with safety valve 83 between oil hydraulic pump 81 and the oily selector valve 82, excessive with the oil pressure of the hydraulic oil that prevents from oil hydraulic pump 81, to come out, telescopic pumping plant is caused damage.
In the preferred version; Also comprise first oil pressure sensor 84, second oil pressure sensor 85 that are respectively applied for oil pressure in the rod chamber that detects cylinder body 2, the rodless cavity; Can preset the interior piston rod of rod chamber or rodless cavity 4 needs the oil pressure of the hydraulic oil of switching-over; When first oil pressure sensor 84 or second oil pressure sensor, 85 detected oil pressure during greater than predefined value, control oily selector valve 82 and commutate, make piston rod 4 move in the opposite direction.
In the concrete scheme, water distribution system can comprise first one-way valve 91, second one-way valve 92, the 3rd one-way valve 93, the 4th one-way valve 94; The water intake of first one-way valve 91, second one-way valve 92 all is communicated with the water source, water outlet is communicated with rod chamber, the rodless cavity of water vat body 3 respectively; Particularly, the water outlet of first one-way valve, 91 water outlets, second one-way valve 92 can be respectively be communicated with first mouth of a river 31, second mouth of a river 32; Pipeline connection between the water outlet of the water intake of the 4th one-way valve 94 and said first one-way valve 91, the said rod chamber; Pipeline connection between the water outlet of the water intake of said the 3rd one-way valve 93 and second one-way valve 92, the said rodless cavity, the water outlet of said the 3rd one-way valve 93, the 4th one-way valve 94 all can be connected with water spray projector system.
Water in the water source can get in the rod chamber and rodless cavity of water vat bodies 3 through first one-way valve 91, second one-way valve 92, and the high pressure water in the rod chamber of water vat body 3, the rodless cavity can be respectively discharged through the 3rd one-way valve 93, the 4th one-way valve 94.
In the preferred version; As shown in Figure 5; Said water distribution system specifically can comprise water distribution valve piece 90; This water distribution valve piece 90 comprises valve body, and said valve body is provided with to be respectively applied for and holds said first one-way valve 91, second one-way valve 92, the 3rd one-way valve 93, first valve pocket of the 4th one-way valve 94, second valve pocket, the 3rd valve pocket, the 4th valve pocket; Also be provided with water sucking mouth 95, first water intake 96, second water intake 97, water outlet 98 on the water distribution valve piece 90; Water sucking mouth 95 is communicated with the water source; First water intake 96, second water intake 97 are communicated with first mouth of a river 31, second mouth of a river 32 of water vat body 3 respectively; Water outlet 98 can be connected with water spray projector system, and high pressure water is discharged.
The water distribution system water route control of this structure is concentrated, and shared space is less, and is easy to use, and it is also comparatively convenient that part is changed in maintenance.
In the more excellent scheme; Like Fig. 6-shown in Figure 9; Second water intake 97 can directly be communicated with second water outlet 32 of water vat body, and first water intake 96 is communicated with first mouth of a river 31 of water vat body 3, and water distribution valve piece 90 can directly be connected through flange with the water vat body of telescopic water pump; Make water distribution valve piece 90 and telescopic water pump link into an integrated entity, make water pump system littler, the more compact structure that takes up space.
In the water pump system provided by the invention; Water distribution system is not limited to aforesaid way; Water distribution system can also comprise the water selector valve; The water intake of this water selector valve is communicated with the water source, and first water outlet of said water selector valve, second water outlet are communicated with rod chamber, the rodless cavity of water vat body respectively, the backwater mouth of said water selector valve is communicated with water spray projector system.
In the foregoing description; The switching-over control of oil selector valve 82 is to compare through the size that detects the oil pressure in cylinder body 2 chambeies and with detected oil pressure and predefined value; Whether control oily selector valve 82 according to the size of oil pressure commutates; The present invention is not limited thereto, and the switching-over control of oily selector valve 82 also can realize in unidirectional run duration through piston rod 4 is set, and promptly can control the time of oily selector valve 82 in a certain oil circuit connection; Switching-over through the oily selector valve 82 of time-delay control control; Be appreciated that no matter adopt the sort of control strategy, the method for the change of all moving direction that realizes piston rod 4 through the switching-over of controlling oily selector valve 82 all should be in protection scope of the present invention.
The above only is the description of the preferred implementation of invention; Should be pointed out that finiteness, and objectively have unlimited concrete structure owing to literal expression; For those skilled in the art; Under the prerequisite that does not break away from the principle of the invention, can also make some improvement and retouching, these improvement and retouching also should be regarded as protection scope of the present invention.

Claims (13)

1. telescopic pumping plant; Comprise adpting flange (1), cylinder body (2), water vat body (3) and piston rod (4); Said cylinder body (2), said water vat body (3) are connected in the both sides of said adpting flange (1) respectively; The two ends of said piston rod (4) are placed in the said cylinder body (2) respectively, in the said water vat body (3), the two ends of said piston rod (4) are respectively equipped with oil cylinder piston (5), water vat piston (6), it is characterized in that; The distance against the outboard end of point to said water vat piston (6) of said oil cylinder piston (5) and said adpting flange (1) is not more than the distance against point to said water vat body (3) bottom of said adpting flange (1) and said oil cylinder piston (5); Or the distance against the outboard end of point to said oil cylinder piston (5) of said water vat piston (6) and said adpting flange (1), be not more than the distance against point to said cylinder body (2) bottom of said adpting flange (1) and said water vat piston (6).
2. telescopic pumping plant according to claim 1; It is characterized in that; Said piston rod (4) is provided with oil seal circle (15) and waterstop ring (16) side by side with the socket place of said adpting flange (1), and the cavity between said oil seal circle (15), said waterstop ring (16), said adpting flange (1), the said piston rod (4) is in communication with the outside.
3. telescopic pumping plant according to claim 2 is characterized in that, said adpting flange (1) is provided with first boss (11), second boss (12) that extends to adpting flange (1) left and right sides direction respectively with said piston rod (4) socket place.
4. telescopic pumping plant according to claim 3 is characterized in that, the medial extremity of said oil cylinder piston (5) is provided with oil cylinder piston groove (53), and said first boss (11) is against the bottom of said oil cylinder piston groove (53).
5. telescopic pumping plant according to claim 3 is characterized in that, the medial extremity of said water vat piston (6) is provided with water vat pistion recess, said second boss (12) bottom against said water vat pistion recess.
6. according to each described telescopic pumping plant of claim 1-5, it is characterized in that, be provided with the screw (54) of locking effect between water vat piston (6) or oil cylinder piston (5) and the said piston rod (4).
7. according to the said telescopic pumping plant of claim 6, it is characterized in that the outboard end of said screw (54) is provided with jump ring (55).
8. a water pump system comprises the pumping plant, the water distribution system that are driven by hydraulic oil source, it is characterized in that said pumping plant is each described telescopic pumping plant of claim 1-7.
9. water pump system according to claim 8 is characterized in that, said water distribution system comprises first one-way valve (91), second one-way valve (92), the 3rd one-way valve (93), the 4th one-way valve (94); The water intake of first one-way valve (91), second one-way valve (92) all is communicated with the water source, and water outlet is communicated with rod chamber, the rodless cavity of water vat body (3) respectively; The water outlet of the water intake of the 3rd one-way valve (93) and said second one-way valve (92), the pipeline connection between the said rodless cavity; The water outlet of the water intake of said the 4th one-way valve (94) and first one-way valve (91), the pipeline connection between the said rod chamber, the water outlet of the water outlet of said the 3rd one-way valve (93), the 4th one-way valve (94) all is connected with water spray projector system.
10. water pump system according to claim 9; It is characterized in that; Said water distribution system is water distribution valve piece (90), and said water distribution valve piece (90) is provided with to be respectively applied for and holds said first one-way valve (91), second one-way valve (92), the 3rd one-way valve (93), first valve pocket of the 4th one-way valve (94), second valve pocket, the 3rd valve pocket, the 4th valve pocket.
11. water pump system according to claim 8; It is characterized in that; Said water distribution system comprises the water selector valve; The water intake of this water selector valve is communicated with the water source, and first water outlet of said water selector valve, second water outlet are communicated with rod chamber, the rodless cavity of water vat body respectively, the backwater mouth of said water selector valve is communicated with water spray projector system.
12. water pump system according to claim 8; It is characterized in that; Said hydraulic oil source comprises the oil hydraulic pump (81) that is communicated with fuel tank, oily selector valve (82); The oil outlet of said oil hydraulic pump (81) is communicated with the filler opening of said oily selector valve (82), and first oil outlet of said oily selector valve (82), second oil outlet are communicated with rod chamber, the rodless cavity of said cylinder body (2) respectively, and the return opening of said oily selector valve (82) is communicated with fuel tank.
13. water pump system according to claim 12; It is characterized in that; Also comprise and be respectively applied for the rod chamber that detects said cylinder body (2), first oil pressure sensor (84), second oil pressure sensor (85) of the interior oil pressure of rodless cavity; First oil pressure sensor (84) or the detected oil pressure of second oil pressure sensor (85) be during greater than predefined value, said oily selector valve (82) switching-over.
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