阅读说明：本技术 一种双缸注浆泵 (Double-cylinder grouting pump ) 是由 卢良彬 连亚晓 敖建丰 于 2021-08-14 设计创作，主要内容包括：本发明公开了一种双缸注浆泵,包括第一推动组件、第二推动组件及中转阀,所述第一推动组件及所述第二推动组件一端与所述中转阀连通,所述第一推动组件及所述第二推动组件依次交替抽取泥浆进入中转阀内并从所述中转阀内推动泥浆向外输出,当所述第一推动组件处于抽取路径时,所述第二推动组件处于推动路径上。本发明提供的双缸注浆泵可以通过第一推动组件和第二推动组件的双缸往复运动,可以让泥浆的抽取到输出的连续不间断工作,提高了泥浆运输的效率,相比于人工搬运提高了自动化水平,同时,双缸式的往复运动可以很好地降低运行过程中的设备震动,提高设备运行的稳定性。(The invention discloses a double-cylinder grouting pump which comprises a first pushing assembly, a second pushing assembly and a transfer valve, wherein one ends of the first pushing assembly and the second pushing assembly are communicated with the transfer valve, the first pushing assembly and the second pushing assembly sequentially and alternately extract slurry into the transfer valve and push the slurry outwards from the transfer valve, and when the first pushing assembly is positioned in an extraction path, the second pushing assembly is positioned on the pushing path. The double-cylinder grouting pump provided by the invention can enable continuous uninterrupted work from the pumping to the output of the slurry through the double-cylinder reciprocating motion of the first pushing assembly and the second pushing assembly, improves the efficiency of slurry transportation, improves the automation level compared with manual carrying, and meanwhile, the double-cylinder reciprocating motion can well reduce the equipment vibration in the operation process and improve the stability of the equipment operation.)

1. A double-cylinder grouting pump is characterized by comprising a first pushing assembly, a second pushing assembly and a transfer valve, wherein one end of each of the first pushing assembly and the second pushing assembly is communicated with the transfer valve;

the first pushing assembly and the second pushing assembly sequentially and alternately extract slurry into the transit valve and push the slurry to be output outwards from the transit valve;

the second pusher assembly is in the pusher path when the first pusher assembly is in the withdrawal path.

2. The dual cylinder grout pump of claim 1 wherein: the first pushing assembly comprises a first oil cylinder and a first oil plug, and the first oil plug is positioned in the first oil cylinder to move;

the second pushing assembly comprises a second oil cylinder and a second oil plug, and the second oil plug is positioned in the second oil cylinder to move;

and one end of the first oil cylinder, which is close to the transfer valve, is communicated with the second oil cylinder.

3. The dual cylinder grout pump of claim 2 wherein: and positioning sensors are arranged at two ends of the first oil cylinder and the second oil cylinder, and when the first oil plug and the second oil plug move to the area of the positioning sensors, the first oil plug and the second oil plug are driven to move reversely.

4. The dual cylinder grout pump of claim 3 wherein: the positioning sensor is a magnetic induction sensor, and the positioning sensor is clamped and positioned on the outer surface of the first oil cylinder and the outer surface of the second oil cylinder.

5. The dual cylinder grout pump of claim 2 wherein: the first pushing assembly further comprises a first pushing cylinder, a first pushing plug and a first connecting shell, the first oil cylinder, the first connecting shell and the first pushing cylinder are sequentially connected, the first pushing plug is located in the first pushing cylinder to move, and the first pushing plug is connected with the first oil plug;

the first connecting shell is of a box body structure with a hollow interior, the first connecting shell is communicated with the first pushing cylinder, and the first connecting shell is sealed with the first oil cylinder;

one end, deviating from the first connecting shell, of the first pushing cylinder is communicated with the transfer valve.

6. The dual cylinder grout pump of claim 2 wherein: one end, deviating from the transfer valve, of the first oil cylinder is provided with an oil inlet and an oil supplementing opening, and the oil inlet is communicated with the oil supplementing opening.

7. The dual cylinder grout pump of claim 2 wherein: still include cooler and oil tank, cooler reach first hydro-cylinder connects gradually, oil tank, cooler reach the second hydro-cylinder connects gradually.

8. The on-off control valve for mud of any of claims 1-7, wherein: the transfer valve comprises a valve body and a first moving ball, the first moving ball is arranged in the valve body, the valve body is provided with a feed port, and the feed port is arranged at the bottom of the valve body;

the caliber of the first movable ball is larger than that of the feed port.

9. The on-off control valve for mud of claim 8, wherein: the valve body is also internally provided with a first limiting frame, the first limiting frame is arranged on the outer peripheral side of the feed port, the first movable ball is abutted to the first limiting frame, and the first movable ball is positioned in the first limiting frame and ascends or descends relative to the feed port.

10. The on-off control valve for mud of claim 9, wherein: first spacing deviates from feed inlet one end is equipped with the shielding plate.

Technical Field

The invention relates to the field of slurry transmission equipment, in particular to a double-cylinder grouting pump.

Background

When the earthwork operation is carried out on buildings, tunnels and the like, a foundation or a mountain body needs to be excavated, a large amount of muck is generated during excavation, stones, soil, sand or other sundries with different sizes are usually mixed in the muck, the muck can form a silt slurry after being mixed with water, after the silt slurry is screened and filtered, the sand and the stones with larger weight are removed to form slurry, the slurry contains the soil and the water, and after the slurry is recycled and dehydrated, the obtained soil can be used for sintering bricks, so that the mud is recycled.

In the screening environment of the residue soil, the residue soil screening equipment usually has a large floor area and a high equipment height, the slurry is a liquid object output after being screened for many times at the front end, a large amount of slurry needs a power device to be moved and transmitted to a press machine for separating the slurry from the water, the existing slurry transmission is usually carried by manpower, and the efficiency is low.

Disclosure of Invention

The invention provides a double-cylinder grouting pump, and aims to solve the problem of low efficiency caused by manual carrying in the conventional slurry conveying process.

According to the embodiment of the application, a double-cylinder grouting pump is provided, and comprises a first pushing assembly, a second pushing assembly and a transfer valve, wherein one end of each of the first pushing assembly and the second pushing assembly is communicated with the transfer valve; the first pushing assembly and the second pushing assembly sequentially and alternately extract slurry into the transit valve and push the slurry to be output outwards from the transit valve; the second pusher assembly is in the pusher path when the first pusher assembly is in the withdrawal path.

Preferably, the first pushing assembly comprises a first oil cylinder and a first oil plug, and the first oil plug is located in the first oil cylinder to move; the second pushing assembly comprises a second oil cylinder and a second oil plug, and the second oil plug is positioned in the second oil cylinder to move; and one end of the first oil cylinder, which is close to the transfer valve, is communicated with the second oil cylinder.

Preferably, positioning sensors are arranged at two ends of the first oil cylinder and the second oil cylinder, and when the first oil plug and the second oil plug move to the area of the positioning sensors, the first oil plug and the second oil plug are driven to move reversely.

Preferably, the positioning sensor is a magnetic induction sensor, and the positioning sensor is clamped and positioned on the outer surfaces of the first oil cylinder and the second oil cylinder.

Preferably, the first pushing assembly further comprises a first pushing cylinder, a first pushing plug and a first connecting shell, the first oil cylinder, the first connecting shell and the first pushing cylinder are sequentially connected, the first pushing plug is located in the first pushing cylinder to move, and the first pushing plug is connected with the first oil plug; the first connecting shell is of a box body structure with a hollow interior, the first connecting shell is communicated with the first pushing cylinder, and the first connecting shell is sealed with the first oil cylinder; one end, deviating from the first connecting shell, of the first pushing cylinder is communicated with the transfer valve.

Preferably, one end, departing from the transfer valve, of the first oil cylinder is provided with an oil inlet and an oil supplementing port, and the oil inlet is communicated with the oil supplementing port.

Preferably, still include cooler and oil tank, cooler reach first hydro-cylinder connects gradually, oil tank, cooler reach the second hydro-cylinder connects gradually.

Preferably, the transfer valve comprises a valve body and a first moving ball, the first moving ball is arranged in the valve body, the valve body is provided with a feed port, and the feed port is arranged at the bottom of the valve body; the caliber of the first movable ball is larger than that of the feed port.

Preferably, a first limiting frame is further arranged in the valve body, the first limiting frame is arranged on the outer peripheral side of the feed port, the first movable ball is abutted against the first limiting frame, and the first movable ball is located in the first limiting frame and ascends or descends relative to the feed port.

Preferably, a baffle plate is arranged at one end, deviating from the feeding hole, of the first limiting frame.

Compared with the prior art, the double-cylinder grouting pump provided by the invention has the following beneficial effects:

1. the double-cylinder grouting pump provided by the invention can realize the extraction and output of slurry through the double-cylinder reciprocating motion of the first pushing assembly and the second pushing assembly so as to transmit the slurry accumulated at a lower position to a higher-position press machine, and when one pushing assembly is positioned in an extraction path, the other pushing assembly is positioned in a pushing path, and the double-stroke alternating motion can ensure the continuous uninterrupted work of the extraction and the output of the slurry, thereby improving the efficiency of slurry transportation and improving the automation level compared with manual carrying. Meanwhile, the double-cylinder reciprocating motion can well reduce the vibration of the equipment in the operation process and improve the stability of the operation of the equipment.

2. Through communicating first hydro-cylinder and second hydro-cylinder near transfer valve one end, fluid in the first hydro-cylinder can flow to the second hydro-cylinder in to the synchronous motion of first oil plug and second oil plug is driven simultaneously to fluid through the intercommunication, and power equipment only need connect first hydro-cylinder can, can enough guarantee the synchronous motion of first oil plug and second oil plug, also reduced power equipment's extra setting.

3. Through setting up positioning sensor for the removal of first oil plug and second oil plug carries out accurate control based on positioning sensor, avoids first oil plug and second oil plug in long-term the use, because lack the sensor and frequent with hydro-cylinder inner wall or hydro-cylinder in the collision of other structures and the damage problem that leads to, improves the durability of product.

4. Through setting up positioning sensor into magnetic induction sensor for positioning sensor can set up in the outside of hydro-cylinder based on the principle of magnetic induction, can set up positioning sensor's position in the outside is nimble, can avoid setting up the sensor at the inside problem of bringing of hydro-cylinder not convenient to overhaul and change. Meanwhile, the positioning sensor is set as a magnetic induction sensor, the position of the positioning sensor can be adjusted conveniently by a user, the positioning sensor only needs to be moved, for example, a guide rail is arranged to slide the positioning sensor on the guide rail, so that the positioning sensor is flexibly adjusted, the moving length of the oil plug is limited, and the operation of the user is greatly facilitated.

5. First connecting shell is hollow box structure, and first connecting shell and the one end intercommunication that first promotion jar deviates from the transfer valve, and first promotion stopper can remove to first connecting shell in to break away from first promotion jar, make first promotion stopper can examine and maintain in daily use through removing first connecting shell, avoided the complicated work of dismantling first promotion jar, convenience of customers is to the maintenance of first promotion stopper.

6. Through setting up the oil supplementing opening, can supply the fluid of disappearance, ensure the synchronous operation of first oil plug and second oil plug, reduce equipment vibrations and the noise that causes when asynchronous removal, improve equipment operation's stability.

7. Through set up the cooler at the oil tank front end to the fluid that will flow back and the fluid of output cool off through the cooler, avoid the high temperature to the influence of fluid, guarantee the steady operation of equipment.

8. Through setting up valve body and first removal ball to set up the feed inlet in the bottom of valve body, make first removal ball when the valve body is in the promotion ejection of compact state, remove the ball and can combine self gravity and the tight shutoff of feed inlet with the driving force of first promotion subassembly, and the packing force increases along with the increase of driving force, has improved the airtight characteristic of feed inlet when promoting the ejection of compact. Simultaneously, can keep away from the feed inlet based on the extraction power with first removal ball suction when the feeding to guarantee the smooth entering of mud, the switching of accurate control feed inlet when feeding and ejection of compact switches.

9. The moving direction of the moving ball is limited by the first limiting frame, the problem that the moving ball moves to other positions to cause untimely sealing of the feed port is avoided, and the efficiency of sealing the feed port when the moving ball is pushed is improved.

10. First spacing deviates from feed inlet one end is equipped with the shielding plate, the removal ball can be based on the limiting displacement of shielding plate, avoids removing the ball and rises too high and break away from spacing.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a double-cylinder grouting pump according to a first embodiment of the invention.

Fig. 2 is a schematic structural diagram of a first pushing assembly and a second pushing assembly in a two-cylinder grouting pump according to a first embodiment of the invention.

Fig. 3 is a schematic structural diagram of a relay valve in a two-cylinder grouting pump according to a first embodiment of the invention.

FIG. 4 is a schematic view of the transfer valve in the first embodiment of the present invention in the pumping state.

Description of reference numerals:

100. a double-cylinder grouting pump; 101. a positioning sensor; 102. a discharge cavity;

1. a first pushing assembly; 11. a first cylinder; 111. an oil inlet; 112. an oil supplementing port; 12. a first oil plug; 13. a first push cylinder; 14. a first push plug; 15. a first connecting shell;

2. a second pushing assembly; 21. a second cylinder; 22. a second oil plug; 23. a second push cylinder; 24. a second push plug;

3. a transfer valve; 31. a valve body; 311. a feed inlet; 312. a discharge port; 32. a feed assembly; 321. a first moving ball; 322. a first limit bracket; 323. a shielding plate; 33. a discharge assembly; 331. a second moving ball; 332. a second limiting frame; 333. a support plate;

4. a cooler; 5. an oil tank; 6. a variable displacement pump.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It is also to be understood that the terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in the specification of the present invention and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.

It should be further understood that the term "and/or" as used in this specification and the appended claims refers to and includes any and all possible combinations of one or more of the associated listed items.

Referring to fig. 1, 2 and 3, a first embodiment of the present invention discloses a dual-cylinder grouting pump 100, which includes: the device comprises a first pushing assembly 1, a second pushing assembly 2 and a transfer valve 3, wherein one end of each of the first pushing assembly 1 and the second pushing assembly 2 is communicated with the transfer valve 3. The first pushing assembly 1 and the second pushing assembly 2 alternately draw mud into the transit valve 3 in sequence and push the mud to be output outwards from the transit valve 3.

The first pushing assembly 1 and the second pushing assembly 2 both comprise a pushing path for pushing the output of the mud and an extracting path for extracting the mud, namely, two reciprocating motions of pumping and sucking are carried out, when the first pushing assembly 1 is positioned in the extracting path, the second pushing assembly 2 is positioned on the pushing path, or when the first pushing assembly 1 is positioned in the pushing path, the second pushing assembly 2 is positioned on the extracting path, so that double-cylinder reciprocating motion is realized.

Specifically, please continue to refer to fig. 1 and fig. 2, the first pushing assembly 1 includes a first cylinder 11 and a first oil plug 12, and the first oil plug 12 is located inside the first cylinder 11. Correspondingly, the second pushing assembly 2 comprises a second oil cylinder 21 and a second oil plug 22, the second oil plug 22 is located in the second oil cylinder 21 to move, one end of the first oil cylinder 11, which is close to the transfer valve 3, is communicated with the second oil cylinder 21, and the first oil cylinder 11 and the second oil cylinder 21 are filled with liquid (for example, hydraulic oil) to push corresponding pistons to move.

It can be understood that when the first oil cylinder 11 is filled with oil, the first oil plug 12 is pushed to move towards the direction of the transfer valve 3, at this time, the first pushing assembly 1 is a pushing path and outputs slurry outwards, the oil at the end of the first oil cylinder 11 close to the transfer valve 3 is input into the second oil cylinder 21, the second oil plug 22 is pushed to move towards the opposite direction, and at this time, the second pushing assembly 2 is on the extraction path and extracts external slurry into the transfer valve 3.

First promotion subassembly 1 still includes first propelling movement jar 13, first propelling movement stopper 14 and first connecting shell 15, first hydro-cylinder 11, first connecting shell 15 and first propelling movement jar 13 connects gradually, first propelling movement stopper 14 is located remove in the first propelling movement jar 13, first propelling movement stopper 14 with first oil plug 12 is connected, first oil plug 12 drives first propelling movement stopper 14 removes.

First connection shell 15 is inside hollow box structure, first connection shell 15 with first propulsion jar 13 intercommunication, first connection shell 15 with first hydro-cylinder 11 is sealed, first propulsion jar 13 deviates from first connection shell 15 one end with the transfer valve intercommunication, also the fluid in the first hydro-cylinder 11 is blockked by first connection shell 15 and can't flow to first propulsion jar 13 in, first oil plug 12 provides the removal power for first propulsion stopper 14 to directly promote or extract mud through first propulsion stopper 14.

It can be understood that first connection shell 15 is hollow box structure, and first connection shell 15 and first promotion jar 13 deviate from the one end intercommunication of transfer valve 3, first promotion stopper 14 can remove in first connection shell 15 to break away from first promotion jar 13, make first promotion stopper 14 can inspect and maintain through removing in first connection shell 15 in daily use, the complicated work of having avoided dismantling first promotion jar 13, convenience of customers is to the maintenance of first promotion stopper 14.

It can be understood that the first pushing assembly 1 and the second pushing assembly 2 have the same structure, in this embodiment, only the structure of the first pushing assembly 1 is used for explanation, and the structure of the second pushing assembly 2 is not described again.

Referring to fig. 1 and 2, the two ends of the first oil cylinder 11 and the second oil cylinder 21 are provided with positioning sensors 101, and when the first oil plug 12 and the second oil plug 22 move to the area of the positioning sensors 101, the first oil plug 12 and the second oil plug 22 are driven to move in opposite directions, that is, the moving length of the oil plugs is limited by the positioning sensors 101, so as to control the amount of mud pushed or extracted at a time.

Specifically, the positioning sensor 101 may be configured as an optical sensor disposed inside the inner wall of the first oil cylinder 11, and configured to detect the position of the first oil plug 12 through light, and when the first oil plug 12 completely blocks the light, the first oil plug 12 is controlled to move in the opposite direction to the preset position.

In this embodiment, positioning sensor 101 is magnetic induction sensor, positioning sensor 101 joint is fixed in first hydro-cylinder 11 reaches the surface of second hydro-cylinder 21, correspondingly, but the material is inhaled to iron or steel magnetism for use then to the material of first oil plug 12 and second oil plug 22, the magnetic induction sensor's of being convenient for response, just first hydro-cylinder 11 reaches second hydro-cylinder 21 adopts non-magnetic metals such as stainless steel.

It can be understood that, through setting up positioning sensor 101 to magnetic induction sensor for positioning sensor 101 can set up in the outside of hydro-cylinder based on the principle of magnetic induction, can set up positioning sensor 101's position in the outside is nimble, can avoid setting up the sensor at the inside problem of bringing of hydro-cylinder not convenient to overhaul and change. Meanwhile, the positioning sensor 101 is set as a magnetic induction sensor, so that the user can adjust the position of the positioning sensor 101 conveniently, the positioning sensor 101 only needs to be moved, for example, a guide rail is arranged to slide the positioning sensor 101 on the guide rail, the positioning sensor 101 is adjusted flexibly, the moving length of the oil plug is limited, and the operation of the user is facilitated greatly.

With reference to fig. 1 and fig. 2, an oil inlet 111 and an oil compensating port 112 are disposed at an end of the first oil cylinder 11 away from the transfer valve 3, the oil inlet 111 is communicated with the oil compensating port 112, an aperture of the oil compensating port 112 is smaller than an aperture of the oil inlet 111, and the oil compensating port 112 may additionally add oil to the first oil cylinder 11 through an oil path of the oil inlet 111.

It can be understood that the oil has a compressible characteristic, and in combination with the sealing effect of the first oil cylinder 11, the problem that the oil is compressed and leaks oil occurs under long-term operation, so that the first oil plug 12 and the second oil plug 22 cannot reach the end of the positioning cylinder body at the same time, and particularly cannot move to the position of the positioning sensor 101 at the same time, so that the movement of the two oil plugs cannot be synchronized. And through mending the hydraulic fluid port 112, can supply the fluid of disappearance, ensure the synchronous operation of first oil plug 12 and second oil plug 22, reduce equipment vibrations and the noise that causes when asynchronous removal, improve the stability of equipment operation.

Referring to fig. 1, the double-cylinder grouting pump 100 further includes a cooler 4 and an oil tank 5, the cooler 4 and the first oil cylinder 11 are sequentially connected, the oil tank 5, the cooler 4 and the second oil cylinder 21 are sequentially connected, that is, the first oil cylinder 11 and the second oil cylinder 21 are separately connected to the oil tank 5, and the flowing oil are cooled by the cooler 4.

It can be understood that the double-cylinder grouting pump 100 further comprises a variable pump 6, the variable pump 6 is communicated with the oil tank 5, the variable pump 6 drives oil in the first oil cylinder 11 to flow, that is, the first oil cylinder 11 is used as a power source to push the second oil cylinder 21 to work.

It can be understood that the variable pump 6 is connected with a two-position four-way valve to realize the switching of oil paths so as to control the switching of the pumping paths and the pushing paths of the first pushing assembly 1 and the second pushing assembly 2.

Referring to fig. 3 and 4, the transfer valve 3 includes a valve body 31, a feeding assembly 32, and a discharging assembly 33, the valve body 31 is provided with a feeding port 311 and a discharging port 312, the feeding port 311 and the discharging port 312 are respectively disposed at two ends of the valve body 31 in the gravity direction, the feeding port 311 is disposed at the bottom of the valve body 31, and the feeding assembly 32 is disposed on the feeding port 311 and is used for controlling the opening and closing of the feeding port 311. Correspondingly, the discharge port 312 is disposed in the region of the discharge port 312, and is used for controlling the opening and closing of the discharge port 312.

Specifically, the feeding assembly 32 includes a first movable ball 321, the first movable ball 321 is disposed in the valve body 31, and an aperture of the first movable ball 321 is larger than an aperture of the feeding hole 311.

It can be understood that the first movable ball 321 is a solid ball structure, and freely falls down by gravity to close the feed inlet 311, when the first pushing assembly 1 is in the pushing path, the first pushing assembly 1 pushes slurry into the valve body 31, at this time, the first movable ball 321 moves towards the feed inlet 311 based on the action of the pushing force, and as the first pushing assembly 1 forms the pushing force into the valve body 31, the first movable ball 321 compresses the feed inlet 311 by combining the pushing force and the gravity, and the larger the formed pushing force is, the larger the pressing force of the first movable ball 321 on the feed inlet 311 is, and the better the sealing performance is. Conversely, when the first pushing assembly 1 is in the pumping path, the first pushing assembly 1 generates a suction force into the valve body 31, the suction force is greater than the gravity of the first moving ball 321, and when the first moving ball 321 moves out of the position of the feed inlet 311 (direction a in fig. 4), the external slurry enters the valve body 31.

Referring to fig. 3, a first limiting frame 322 is further disposed in the valve body 31, the first limiting frame 322 is disposed on an outer peripheral side of the feed port 311, the first movable ball 321 abuts against the first limiting frame 322, and the first movable ball 321 is located in the first limiting frame 322 and ascends or descends relative to the feed port 311, that is, the first limiting frame 322 is disposed to limit a moving direction of the first movable ball 321, so that a problem that the first movable ball 321 moves to other positions to cause untimely closing of the feed port 311 is avoided, and efficiency of closing the feed port 311 during pushing is improved.

Furthermore, a shielding plate 323 is arranged at one end of the first limiting frame 322, which is away from the feed port 311, and the first movable ball 321 can be prevented from being separated from the first limiting frame 322 due to the over-height of the first movable ball 321 based on the limiting effect of the shielding plate 323. The shielding plate 323 is provided with a plurality of through holes, so that the movement of shielding mud can be avoided.

Alternatively, as an embodiment, the outer periphery of the feed opening 311 is provided with an inclined surface, and the first movable ball 321 slides and presses the feed opening based on the guide of the inclined surface.

Referring to fig. 3 and 4, a discharge cavity 102 is disposed at the discharge port 312, and the slurry discharged from the discharge port 312 enters the discharge cavity 102 and is discharged outward. The discharging component 33 includes a second moving ball 331, a second limiting frame 332 and a supporting plate 333, the second moving ball 331 and the second limiting frame 332 are disposed in the discharging cavity 102, the supporting plate 333 is disposed on one side of the discharging port 312 close to the valve body 31, and a caliber of the second moving ball 331 is larger than a caliber of the discharging port 312.

The second limiting frame 332 is disposed on the outer periphery of the discharge hole 312, and the second movable ball 331 is disposed in the second limiting frame 332 to ascend or descend so as to limit the moving direction of the second movable ball 331.

It can be understood that the moving principles of the first moving ball 321 and the second moving ball 331 are opposite, that is, when the valve body 31 is in the pushing discharging state, the first moving ball 321 presses the feeding hole 311, and the second moving ball 331 moves upwards under the pushing force to open the discharging hole 312, and when the material is in the drawing state, the movement is opposite (for example, the direction b in fig. 4 presses the discharging hole 312), and the description is omitted here.

The supporting plate 333 is used for supporting the second moving ball 331, so that the problem that the opening and closing control of the discharge port 312 is disabled due to the fact that the second moving ball 331 accidentally passes through the discharge port 312 and falls into the valve body 31 can be avoided, and the supporting plate 333 can be omitted, namely the supporting plate 333 is only used as a solution of a preferred embodiment.

Compared with the prior art, the double-cylinder grouting pump provided by the invention has the following beneficial effects:

1. the double-cylinder grouting pump provided by the invention can realize the extraction and output of slurry through the double-cylinder reciprocating motion of the first pushing assembly and the second pushing assembly so as to transmit the slurry accumulated at a lower position to a higher-position press machine, and when one pushing assembly is positioned in an extraction path, the other pushing assembly is positioned in a pushing path, and the double-stroke alternating motion can ensure the continuous uninterrupted work of the extraction and the output of the slurry, thereby improving the efficiency of slurry transportation and improving the automation level compared with manual carrying. Meanwhile, the double-cylinder reciprocating motion can well reduce the vibration of the equipment in the operation process and improve the stability of the operation of the equipment.

2. Through communicating first hydro-cylinder and second hydro-cylinder near transfer valve one end, fluid in the first hydro-cylinder can flow to the second hydro-cylinder in to the synchronous motion of first oil plug and second oil plug is driven simultaneously to fluid through the intercommunication, and power equipment only need connect first hydro-cylinder can, can enough guarantee the synchronous motion of first oil plug and second oil plug, also reduced power equipment's extra setting.

3. Through setting up positioning sensor for the removal of first oil plug and second oil plug carries out accurate control based on positioning sensor, avoids first oil plug and second oil plug in long-term the use, because lack the sensor and frequent with hydro-cylinder inner wall or hydro-cylinder in the collision of other structures and the damage problem that leads to, improves the durability of product.

4. Through setting up positioning sensor into magnetic induction sensor for positioning sensor can set up in the outside of hydro-cylinder based on the principle of magnetic induction, can set up positioning sensor's position in the outside is nimble, can avoid setting up the sensor at the inside problem of bringing of hydro-cylinder not convenient to overhaul and change. Meanwhile, the positioning sensor is set as a magnetic induction sensor, the position of the positioning sensor can be adjusted conveniently by a user, the positioning sensor only needs to be moved, for example, a guide rail is arranged to slide the positioning sensor on the guide rail, so that the positioning sensor is flexibly adjusted, the moving length of the oil plug is limited, and the operation of the user is greatly facilitated.

5. First connecting shell is hollow box structure, and first connecting shell and the one end intercommunication that first promotion jar deviates from the transfer valve, and first promotion stopper can remove to first connecting shell in to break away from first promotion jar, make first promotion stopper can examine and maintain in daily use through removing first connecting shell, avoided the complicated work of dismantling first promotion jar, convenience of customers is to the maintenance of first promotion stopper.

6. Through setting up the oil supplementing opening, can supply the fluid of disappearance, ensure the synchronous operation of first oil plug and second oil plug, reduce equipment vibrations and the noise that causes when asynchronous removal, improve equipment operation's stability.

7. Through set up the cooler at the oil tank front end to the fluid that will flow back and the fluid of output cool off through the cooler, avoid the high temperature to the influence of fluid, guarantee the steady operation of equipment.

8. Through setting up valve body and first removal ball to set up the feed inlet in the bottom of valve body, make first removal ball when the valve body is in the promotion ejection of compact state, remove the ball and can combine self gravity and the tight shutoff of feed inlet with the driving force of first promotion subassembly, and the packing force increases along with the increase of driving force, has improved the airtight characteristic of feed inlet when promoting the ejection of compact. Simultaneously, can keep away from the feed inlet based on the extraction power with first removal ball suction when the feeding to guarantee the smooth entering of mud, the switching of accurate control feed inlet when feeding and ejection of compact switches.

9. The moving direction of the moving ball is limited by the first limiting frame, the problem that the moving ball moves to other positions to cause untimely sealing of the feed port is avoided, and the efficiency of sealing the feed port when the moving ball is pushed is improved.

10. First spacing deviates from feed inlet one end is equipped with the shielding plate, the removal ball can be based on the limiting displacement of shielding plate, avoids removing the ball and rises too high and break away from spacing.

While the invention has been described with reference to specific embodiments, the invention is not limited thereto, and various equivalent modifications and substitutions can be easily made by those skilled in the art within the technical scope of the invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.