CN108005872B - Grouting pump capable of injecting paste gravel - Google Patents
Grouting pump capable of injecting paste gravel Download PDFInfo
- Publication number
- CN108005872B CN108005872B CN201711490890.9A CN201711490890A CN108005872B CN 108005872 B CN108005872 B CN 108005872B CN 201711490890 A CN201711490890 A CN 201711490890A CN 108005872 B CN108005872 B CN 108005872B
- Authority
- CN
- China
- Prior art keywords
- pulp
- sleeve
- cylinder
- hydraulic
- connecting pipe
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000007599 discharging Methods 0.000 claims abstract description 66
- 230000007246 mechanism Effects 0.000 claims description 26
- 230000005540 biological transmission Effects 0.000 claims description 20
- 239000010720 hydraulic oil Substances 0.000 claims description 19
- 239000003921 oil Substances 0.000 claims description 17
- 238000007789 sealing Methods 0.000 claims description 17
- 239000002245 particle Substances 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims description 2
- 239000002002 slurry Substances 0.000 abstract description 24
- 238000000034 method Methods 0.000 abstract description 7
- 239000000463 material Substances 0.000 abstract description 6
- 230000008569 process Effects 0.000 abstract description 4
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 230000000903 blocking effect Effects 0.000 description 6
- 239000007788 liquid Substances 0.000 description 5
- 230000033001 locomotion Effects 0.000 description 5
- 238000003825 pressing Methods 0.000 description 5
- 238000010276 construction Methods 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 201000004569 Blindness Diseases 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 230000003631 expected effect Effects 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000003449 preventive effect Effects 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 239000000565 sealant Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000011800 void material Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/10—Valves; Arrangement of valves
- F04B53/1002—Ball valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B15/00—Pumps adapted to handle specific fluids, e.g. by selection of specific materials for pumps or pump parts
- F04B15/02—Pumps adapted to handle specific fluids, e.g. by selection of specific materials for pumps or pump parts the fluids being viscous or non-homogeneous
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/16—Casings; Cylinders; Cylinder liners or heads; Fluid connections
Abstract
The invention discloses a grouting pump capable of grouting paste gravel, which comprises a driving unit, wherein the driving unit comprises a frame, a cylinder and a plunger sleeve, the plunger sleeve is arranged on the cylinder through a distance sleeve, and the frame is arranged at the lower end of the cylinder; a pulp discharging unit and a pulp sucking unit. The invention has the beneficial effects that: the check valve is closed by forced assistance of the small cylinder, so that the failure of the check valve caused by viscous slurry can be eliminated; the high-viscosity severe material can easily paste the valve ball in mid-air in the grouting process, and the valve ball can not contact the valve seat, namely can not be closed with the valve seat.
Description
Technical Field
The invention relates to the technical field of grouting pumps, in particular to a grouting pump capable of injecting highly viscous gravel-doped paste materials.
Background
With the development of material science in recent years, the appearance of high-viscosity materials, the conventional grouting pump often cannot meet the special requirements. The existing high-viscosity grouting pump adopts a soft rubber pipe as a conveying pipeline, rollers roll and move above the pipeline to generate volume change so as to enable slurry to move, the equipment cannot convey particles for a long time, the service life of a hose is extremely reduced, a method adopts a rigid impeller to convey the slurry, and the slurry is conveyed through continuous cavity change between the rigid impellers. In the grouting process of the traditional grouting equipment, the valve ball and the valve seat are used as the one-way valve, the high-viscosity severe material easily enables the valve ball to be pasted in the mid-air in the grouting process, so that the valve ball cannot contact the valve seat, the effect of the one-way valve cannot be generated, and the work of sucking and discharging the grouting fails.
Disclosure of Invention
This section is intended to outline some aspects of embodiments of the invention and to briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section as well as in the description summary and in the title of the application, to avoid obscuring the purpose of this section, the description summary and the title of the invention, which should not be used to limit the scope of the invention.
The present invention has been made in view of the above-described problems with the conventional paste gravel injectable pump.
Therefore, the invention aims to provide the grouting pump capable of grouting paste gravel, which can eliminate the fault of the one-way valve caused by the fact that the valve ball and the valve seat cannot be contacted and closed due to the fact that viscous slurry is stuck in the valve ball, so that the inner stroke of the plunger sleeve can effectively suck slurry in a closed space.
In order to solve the technical problems, the invention provides the following technical scheme: the grouting pump capable of injecting paste gravel comprises a driving unit, wherein the driving unit comprises a frame, a cylinder and a plunger sleeve, the plunger sleeve is arranged on the cylinder through a distance sleeve, and the frame is arranged at the lower end of the cylinder; the pulp discharging unit comprises a pulp discharging sleeve, a pulp discharging valve seat, a pulp discharging interface and a pulp discharging assisting cylinder, wherein the pulp discharging interface is arranged on the plunger sleeve, the pulp discharging valve seat and the pulp discharging sleeve are fixed on the pulp discharging interface, and the pulp discharging assisting cylinder is arranged on the pulp discharging valve seat; and the pulp sucking unit comprises a pulp sucking sleeve, a pulp sucking valve seat and a pulp sucking connector, wherein the pulp sucking sleeve is arranged on the plunger sleeve, the pulp sucking valve seat and the pulp sucking connector are arranged on the pulp sucking sleeve, and a pulp sucking assisting cylinder is further arranged in the pulp sucking sleeve.
As a preferable embodiment of the paste gravel injectable grouting pump according to the present invention, wherein: the cylinder still includes left cylinder cap, right cylinder cap, left interface of cylinder and right interface of cylinder, left cylinder cap with right cylinder cap set up respectively in the left and right sides of cylinder, and both respectively with left interface of cylinder and right interface of cylinder correspond to be connected.
As a preferable embodiment of the paste gravel injectable grouting pump according to the present invention, wherein: the cylinder also comprises a piston and a piston rod, wherein the piston is arranged on the inner side of the cylinder, the piston rod is arranged on the piston, and the piston rod is arranged on the inner side of the piston sleeve.
As a preferable embodiment of the paste gravel injectable grouting pump according to the present invention, wherein: the pulp discharging unit further comprises an upper pulp discharging assisting cylinder interface and a lower pulp discharging assisting cylinder interface, the upper pulp discharging assisting cylinder interface and the lower pulp discharging assisting cylinder interface are arranged on the upper pulp discharging assisting cylinder, the pulp discharging assisting cylinder comprises a piston rod of the pulp discharging assisting cylinder, the pulp discharging sleeve further comprises a pulp discharging valve ball and a pulp discharging connector, the pulp discharging valve ball is arranged in the pulp discharging sleeve, and the pulp discharging connector is arranged on the pulp discharging sleeve.
As a preferable embodiment of the paste gravel injectable grouting pump according to the present invention, wherein: the pulp sucking sleeve further comprises a pulp sucking valve ball, an upper connector of the pulp sucking assisting cylinder and a lower connector of the pulp sucking assisting cylinder, the pulp sucking valve ball is arranged in the pulp sucking sleeve, a piston rod of the pulp sucking assisting cylinder is arranged below the pulp sucking assisting cylinder, and the upper connector of the pulp sucking assisting cylinder and the lower connector of the pulp sucking cylinder are arranged on the pulp sucking assisting cylinder.
As a preferable embodiment of the paste gravel injectable grouting pump according to the present invention, wherein: the pulp discharging assisting cylinder is provided with a seal between a piston rod of the pulp discharging assisting cylinder and the pulp discharging sleeve, and the pulp sucking assisting cylinder is provided with a seal between a piston rod of the pulp sucking assisting cylinder and the pulp sucking sleeve.
As a preferable embodiment of the paste gravel injectable grouting pump according to the present invention, wherein: the cylinder, the pulp discharging assisting cylinder and the pulp sucking assisting cylinder can be replaced by hydraulic cylinders.
As a preferable embodiment of the paste gravel injectable grouting pump according to the present invention, wherein: the plunger sleeve is characterized by further comprising a pressing cap and a sealing group, wherein the sealing group is arranged in the plunger sleeve, and the pressing cap and the plunger sleeve are screwed on the sealing group by threads.
As a preferable embodiment of the paste gravel injectable grouting pump according to the present invention, wherein: the left interface of the cylinder, the lower interface of the pulp discharging assisting cylinder and the upper interface of the pulp sucking assisting cylinder are connected in parallel, and the right interface of the cylinder, the upper interface of the pulp discharging assisting cylinder and the lower interface of the pulp sucking assisting cylinder are connected in parallel.
As a preferable embodiment of the paste gravel injectable grouting pump according to the present invention, wherein: the pulp discharging connector and the pulp sucking connector are provided with a section of thread and a section of wave-shaped step.
The invention has the beneficial effects that: according to the grouting pump capable of grouting gravel, disclosed by the invention, the check valve is forcibly closed in an auxiliary manner through the small cylinder, so that the check valve fault caused by viscous slurry can be eliminated, the slurry is sucked in an effective closed space through the inner stroke of the plunger sleeve, the plunger sleeve is arranged between the upper check valve and the upper check valve, when the grouting pump pumps slurry, the lower check valve ball is opened, the upper check valve ball is closed, and when slurry is discharged, the lower check valve ball is closed; the valve ball is stuck in the mid-air easily in the grouting process, and can not contact the valve seat, namely can not be closed with the valve seat.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the description of the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art. Wherein:
FIG. 1 is a schematic view showing the overall structure of a paste gravel injectable pump according to a first embodiment of the present invention;
FIG. 2 is a schematic view of the overall structure of a hydraulic system in a paste gravel injectable grouting pump according to a second embodiment of the present invention;
FIG. 3 is a schematic view of the overall structure of a power mechanism in a hydraulic system of a paste gravel injectable grouting pump according to a second embodiment of the present invention;
FIG. 4 is a schematic view of the overall structure of an actuator in a hydraulic system of a paste gravel injectable pump according to a second embodiment of the present invention;
FIG. 5 is an exploded view showing the overall construction of a hydraulic system and the overall construction of a pump for injecting paste gravel according to a third embodiment of the present invention;
FIG. 6 is an exploded view showing the overall structure of a first connector in a hydraulic system of a paste-capable gravel injection pump according to a third embodiment of the present invention;
fig. 7 is a schematic diagram showing the assembly of the first fitting shaft and the second fitting shaft in the hydraulic system of the paste gravel injectable grouting pump according to the third embodiment of the present invention;
FIG. 8 is a schematic view of the overall structure of a ferrule ring in a hydraulic system of a paste gravel injectable grouting pump according to a third embodiment of the invention;
FIG. 9 is an exploded view showing the overall structure of a first movable flow path in a hydraulic system of a paste-capable gravel injection pump according to a third embodiment of the present invention;
fig. 10 is a schematic cross-sectional view showing the overall structure of a hydraulic system in a paste gravel injectable grouting pump according to a third embodiment of the present invention.
Detailed Description
In order that the above-recited objects, features and advantages of the present invention will become more readily apparent, a more particular description of the invention will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be practiced in other ways other than those described herein, and persons skilled in the art will readily appreciate that the present invention is not limited to the specific embodiments disclosed below.
Further, reference herein to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic can be included in at least one implementation of the invention. The appearances of the phrase "in one embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments.
Further, in describing the embodiments of the present invention in detail, the cross-sectional view of the device structure is not partially enlarged to a general scale for convenience of description, and the schematic is only an example, which should not limit the scope of protection of the present invention. In addition, the three-dimensional dimensions of length, width and depth should be included in actual fabrication.
Example 1
In the embodiment, the grouting pump adopts compressed oil or compressed air as a power source, and the oil cylinder or the air cylinder and the grouting cylinder have larger action area ratio, so that the cylinder body can generate higher injection pressure with smaller pressure. The grouting pump is suitable for grouting and water shutoff, void filling, broken rock stratum reinforcing and other projects of construction sites such as mines, tunnels, water conservancy, subways, buildings, bridges and the like, and is key equipment in grouting construction. The performance and quality of the grouting pump play a decisive role in the safety, quality and efficiency of grouting engineering. If the grouting pump is selected with blindness and randomness, the grouting pump may take a great cost and cannot achieve the expected effect, even engineering accidents are caused, the grouting pump should be used as a ring, and the scientificity is improved, so that the grouting pump has the following characteristics: the grouting pump should have a large adjustment range of the grouting amount, and the change of the final grouting amount and the initial grouting amount is about 8-10 times. The final grouting amount is small, and the filling compaction is proved to be good. And II: the grouting pump should have a reliable pressure control capability. Because grouting is filled with and compacted, overpressure of a grouting pump is formed, and the pump is required to timely reduce the slurry discharge amount at the moment so as to reduce the flow resistance of slurry in a gap, thereby avoiding the conditions of grouting fracturing, pavement protrusion, mechanical accidents and the like. The grouting pump preferably has the property of automatically adjusting the amount of the discharged slurry according to the variation of the grouting pressure. Thirdly,: the grouting pump should be simple to operate and maintain and safe and reliable to use. Because the slurry used by the grouting pump is easy to precipitate and solidify, the grouting pump must ensure that each grouting must not be stopped in the middle (preventive maintenance before grouting is completed). The operation condition is difficult under the mine, the grouting pump must use reliably, absolutely explosion-proof, and use valve ball and disk seat as the check valve in traditional grouting equipment at grouting in-process, highly viscous abominable material makes the valve ball paste in the mid-air easily at grouting in-process, makes the valve ball unable to contact the disk seat easily, can't produce the effect of check valve, leads to inhaling, the work failure of arranging the thick liquid, consequently force the valve ball through helping hand cylinder in this embodiment to close the normal operating of assurance work.
Specifically, as shown in fig. 1, the grouting pump capable of grouting paste gravel comprises a cylinder 102, a left cylinder cover 102a, a right cylinder cover 102b matched with the cylinder 102, a left cylinder connector 102c fixed on the left cylinder cover 102a and the right cylinder cover 102b, a cylinder with connector 102d, a frame 101 fixed on the lower end of the cylinder 102, a piston 102e placed on the inner side of the cylinder 102, a piston rod 102f fixed on the piston 102e, a plunger sleeve 103 fixed on the cylinder 102 through a distance sleeve 104, a piston rod 102f placed on the inner side of the plunger sleeve 103, a sealing group 1100 pressed by a pressing cap 1000 for sealing, a valve seat 202 fixed on the plunger sleeve 103, a pulp outlet connector 203 and a pulp outlet sleeve 201 fixed on the valve seat 202, a pulp outlet booster cylinder 204 fixed on the pulp outlet sleeve 201, a pulp outlet booster cylinder piston rod 207 contained in the pulp outlet booster cylinder 204, a pulp outlet connector 203 and a pulp outlet booster cylinder lower connector 206 fixed on the pulp outlet booster cylinder 204, a pulp outlet ball 201a contained in the pulp outlet sleeve 201, a pulp outlet connector 201b fixed on the cylinder sleeve 201b fixed on the cylinder 102, a pulp outlet connector 301b fixed on the valve seat 301b, a suction booster cylinder connector 301b contained in the suction sleeve 301b and a suction booster cylinder 301d contained in the suction sleeve 301.
The grouting pump capable of injecting paste gravel as shown in fig. 1 is characterized in that seals are arranged among the grouting assisting air cylinder 204, the grouting assisting air cylinder piston rod 207 and the grouting sleeve 201, and the sealing mode can be realized in the form of sealant or a sealing ring.
The grouting pump capable of injecting paste gravel is characterized in that a sealing is arranged among the slurry sucking assisting cylinder 301b, the slurry sucking assisting cylinder piston rod 301e and the slurry sucking sleeve 301, and the sealing mode can be realized in the form of sealing glue or sealing rings.
The grouting pump capable of injecting paste gravel as shown in fig. 1 is characterized in that the cylinder 102, the pulp discharge assisting cylinder 204 and the pulp suction assisting cylinder 301b can be replaced by hydraulic cylinders, and a pneumatic mode is replaced by hydraulic drive to provide required power.
The grouting pump capable of injecting paste gravel as shown in fig. 1 is characterized in that the pressing cap 1000 is screwed on the sealing group 1100, the sealing group 1100 is arranged in the plunger sleeve 103, and the pressing cap 1000 and the plunger sleeve 103 are screwed on the sealing group 1100.
The grouting pump capable of grouting paste gravel as shown in fig. 1 is characterized in that a left cylinder interface 102c, a lower cylinder interface 206 for pulp discharge assisting and an upper cylinder interface 205 for pulp suction assisting are connected in parallel, and a right cylinder interface 102d, an upper cylinder interface 205 for pulp discharge assisting and a lower cylinder interface 301d for pulp suction assisting are connected in parallel.
The working principle of the grouting pump capable of grouting paste gravel in the embodiment is as follows:
referring to fig. 1, when the grouting pump sucks the slurry, the piston 102e moves to the left, and at the same time, negative pressure is generated in the piston sleeve 103, and at this time, the right port 102d of the cylinder, the upper port 205 of the slurry discharge assisting cylinder and the lower port 301d of the slurry suction assisting cylinder enter compressed air to push the cylinder, and the slurry discharge assisting cylinder 204 is driven to move downwards by the upper air intake, so that the slurry discharge assisting piston rod is pressed against the slurry discharge valve ball 201a to form a seal with the slurry discharge valve seat 202. The lower part of the pulp sucking cylinder is provided with air, the pulp sucking assisting piston rod 301e moves upwards, so that the pulp sucking valve ball 301a has a flowing space for sucking pulp, and the same is true.
Example 2
In this embodiment, a driving manner of the hydraulic system is provided, which can replace the driving manner of the cylinder 102 in the first embodiment, by the movement of the hydraulic driving piston 102e in this embodiment, and the transmission distance can be extended and shortened as required in the hydraulic system, and the pollution and waste of hydraulic oil caused by the leakage of the oil body in the transmission line can be avoided. Referring specifically to fig. 2-4, the hydraulic system of the present embodiment further includes a power mechanism 400, a transmission mechanism 500, and an actuator 600. Specifically, the power mechanism 400 includes a driving device 401, a hydraulic chamber 402, a hydraulic oil tank 403, an output end 404, and a return valve 405, where the driving device 401 sucks oil in the hydraulic oil tank 403 into the hydraulic chamber 402, and after the oil is discharged, the oil returns through the return valve 405, so that mechanical energy of the driving device 401 can be converted into hydraulic energy of liquid to be output; the transmission mechanism 500 is connected with the output end 404 of the power mechanism 400 and transmits hydraulic energy generated by the power mechanism 400; and an actuator 600 connected to the transmission 500, receiving hydraulic energy from the transmission 500 and converting it into mechanical energy to continue output. The power mechanism 400 further comprises a load pipeline 406, a pressure gauge 407, an overflow valve 408 and a relief valve 409, wherein the reflux valve 405 is communicated with the hydraulic cavity 402 through the load pipeline 406, the pressure gauge 407 and the overflow valve 408 are arranged at the upper end of the hydraulic cavity 402, the pressure gauge 407 can display pressure parameters of the hydraulic cavity 402, and the relief valve 409 can relieve pressure in the hydraulic cavity 402. The actuating mechanism 600 is a hydraulic cylinder, is an actuating part in a hydraulic transmission system, and further comprises a hydraulic pressure inlet 601, a hydraulic return port 602, an actuating cavity 603 and a second piston rod 604, wherein the hydraulic pressure inlet 601 is connected with the output end 404 of the power mechanism 400 through the transmission mechanism 500, and the hydraulic oil is conveyed to the actuating cavity 603 to be converted into mechanical energy and then pushed to the second piston rod 604 to be executed. The hydraulic tank 403 further includes a hydraulic oil inlet 403a and a hydraulic oil inlet valve 403b, the hydraulic oil inlet 403a is connected to an external supply and device, and the amount of oil is controlled by the hydraulic oil inlet valve 403 b. The return valve 405 is further provided with an oil filter 405a, and the oil filter 405a is provided on the load line 406 to filter solid contaminant particles contained in the returned hydraulic oil.
In this embodiment, the power mechanism 400 is a hydraulic pump, which is a power element of a hydraulic system, and is an element driven by an engine or an electric motor, and the hydraulic pump sucks oil from a hydraulic oil tank to form a pressure oil, and discharges the pressure oil to an actuator; the hydraulic pump is structurally divided into a gear pump, a plunger pump, a vane pump and a screw pump; a hydraulic element for supplying pressurized liquid to a hydraulic transmission is a pump; its function is to convert mechanical energy of a power machine (such as an electric motor and an internal combustion engine) into hydraulic energy of liquid, and the driving device 401 is a power machine. The transmission mechanism 500 is a transmission pipeline and is a hydraulic energy transmission mechanism. The main functions of the hydraulic oil tank 403 in the hydraulic system are oil storage, heat dissipation, separation of air contained in the oil and foam elimination, and can be divided into an upper type, a side type and a lower type according to the installation positions. Further, the actuator 600 is a hydraulic cylinder, which is an actuator in a hydraulic transmission system, in this embodiment and in combination with the first embodiment, referring to fig. 1 together, the actuator 600 in this embodiment is the cylinder 102 in the first embodiment, the cylinder 102 may be a cylinder or a screw rod driven, but in this embodiment, in order to achieve a requirement for higher pressure strength, the actuator 600 is used to replace the cylinder 102 in the above embodiment, so that an output end of the actuator 600 is connected with the piston 102e, and the movement of the piston 102e is driven by hydraulic power to implement grouting operation; the energy conversion device is used for converting hydraulic energy into mechanical energy. The hydraulic motor achieves continuous rotary motion, while the hydraulic cylinder achieves reciprocating motion. The hydraulic cylinder has three main types, namely a piston cylinder, a plunger cylinder and a swing cylinder, wherein the piston cylinder and the plunger cylinder realize reciprocating linear motion, output speed and thrust, and the swing cylinder realize reciprocating swing and output angular speed (rotating speed) and torque. The hydraulic cylinders may be used in combination of two or more other mechanisms, in addition to being used singly.
Example 3
Referring to fig. 5-10, a first embodiment of the hydraulic connection device (i.e., transmission 500) of the present invention is provided, the body of which includes a hydraulic first connector 700, a hydraulic second connector 800, and a snap-fit connector 900. The specific implementation mode is as follows: the hydraulic first connecting member 700 includes a first connecting tube 701, the first connecting tube 701 is connected with an external hose, a second step is provided in the first connecting tube 701, a first step hole of the first connecting tube 701 protrudes out of the surface of the first connecting tube 701, a port at the other end is toothed, that is, the port has elasticity, a third external thread 701b is further provided at the outer end of the first connecting tube 701, the external hose is inserted into the first connecting tube 701 through the toothed port with elasticity, and the internal thread of the first connecting member 704 is matched with the third external thread 701b to shrink the diameter of the port at the toothed end which has been enlarged, thereby the first connecting tube 701 is fastened with the external hose.
The hydraulic second connecting piece 800 comprises a second connecting pipe 801, the second connecting pipe 801 is connected with another external hose, a second-stage step hole is formed in the second connecting pipe 801, the first-stage step hole of the second connecting pipe 801 protrudes out of the surface of the second connecting pipe 801, the other end of the second connecting pipe is similar to the first connecting pipe 701, and the hose is connected in a clamping mode, so that details are omitted.
The engagement connector 900 includes a first engaging shaft 901 and a second engaging shaft 902, the first engaging shaft 901 engages with the first moving magnet 901a, the first engaging shaft 901 is fitted over the first connecting pipe 701, the second engaging shaft 902 engages with the second moving magnet 902a, and the second engaging shaft 902 is fitted over the second connecting pipe 801. The first engaging shaft 901 and the second engaging shaft 902 have the same structure, and for convenience of understanding, the first engaging shaft 901 will be specifically described by taking the first engaging shaft 901 as an example, where the first engaging shaft 901 includes a first limiting groove 901b, a first limiting protrusion 901c and a first sinking groove 901d, and the first limiting groove 901b is disposed on the surface of the first engaging shaft 901, and abuts against a port of the first sinking groove 901d from one end of the first engaging shaft 901, preferably, is parallel to a bus bar of the first engaging shaft 901. The first limiting protrusion 901c extends from the port of the first sink groove 901d (the end of the first limiting groove 901b abuts against the port of the first sink groove 901d, but the center line of the first limiting protrusion 901c is parallel to the center line of the first limiting groove 901b and is not coincident with the center line of the first limiting groove 901 b), and protrudes outwards and backwards, and the opposite direction is provided with the first limiting groove 901 b. It should be noted that the first limit projection 901c extends from the first sink groove 901d by a distance of 2 times as much as the first sink groove 901d, and extends perpendicularly to the outward direction by a distance equal to the distance from the tip 901c-1 of the first limit projection 901c to the front end 901c-2 of the first limit projection 901c adjacent thereto. Similarly, the second engaging shaft 902 includes a second limiting groove 902b, a second limiting protrusion 902c and a second sinking groove 902d, and the specific structure is not repeated. When the first fitting shaft 901 and the second fitting shaft 902 are engaged, the first moving magnet 901a abuts against a step of the first step hole of the first fitting pipe 701, the first fitting shaft 901 and the first fitting pipe 701 are limited, the second moving magnet 902a abuts against a step of the first step hole of the second fitting pipe 801, the second fitting shaft 902 and the second fitting pipe 801 are limited, at this time, the first limiting protrusion 901c is inserted into the second sinking groove 902d of the second fitting shaft 902 through a gap at the second limiting protrusion 902c of the second fitting shaft 902 and rotated, so that the first limiting protrusion 901c and the second limiting protrusion 902c are engaged with each other, the upper and lower directions of the first fitting shaft 901 and the second fitting shaft 902 are limited, and the first fitting pipe 701 and the second fitting pipe 801 are connected.
Preferably, the snap connection 900 further comprises a collar 903, wherein the collar 903 is hollow, one end of the collar 903 is provided with a limiting protrusion 903a, the other end of the collar is provided with a limiting buckle 903b, and the inside of the collar is provided with a snap protrusion 903c. When the first engaging shaft 901 and the second engaging shaft 902 are buckled with each other, the first limiting groove 901b and the second limiting groove 902b are just corresponding, and are a slide way, the limiting projection 903a of the ferrule ring 903 is tilted, the buckling projection 903c moves along the first limiting groove 901b and the second limiting groove 902b, and limits the first engaging shaft 901 and the second engaging shaft 902 until the limiting buckle 903b abuts against the end of the second engaging shaft 902, so that the left and right limitation of the first engaging shaft 901 and the second engaging shaft 902 is realized, and the first engaging shaft 901 and the second engaging shaft 902 are prevented from rotating relatively.
Preferably, the hydraulic first connection 700 further comprises a first active flow channel 702 and a first blocking cap 703, the first active flow channel 702 being placed in the first connection pipe 701 and the first blocking cap 703 being placed in the first active flow channel 702. Wherein, the outer edge of the first blocking cover 703 is provided with a first external thread 703a, and the first step of the first connecting tube 701 is internally provided with a first internal thread 701a, and the first internal thread 701a is matched with the first external thread 703 a.
It should be noted that, the first movable flow path 702 includes a fourth connecting pipe 702a, a first fixed magnet 702b and a fixing piece 702c, one end of the fourth connecting pipe 702a is provided with a second external thread 702a-1, the first fixed magnet 702b is sleeved on the fourth connecting pipe 702a, and cooperates with the second external thread 702a-1 through a second internal thread 702c-1 of the fixing piece 702c to limit the fixed magnet 702 b.
In the initial state, when the first fitting shaft 901 and the second fitting shaft 902 are fitted close to each other, the first fitting shaft 901 will be specifically described. When the first fitting shaft 901 moves in the direction approaching the second fitting shaft 902, the first moving magnet 901a slowly approaches the first fixed magnet 702b (when the two magnets are in the original state, the magnetic pole repulsive ends correspond to each other), the repulsive force of the two magnets is larger and larger, so that the first movable flow channel 702 is just plugged by the first plugging cover 703, and all flow channels are not communicated. When the first fitting shaft 901 and the second fitting shaft 902 are fitted, the first movable flow path 702 is away from the first blocking cover 703 due to repulsive force between the other end of the first movable magnet 901a and the other end of the first fixed magnet 702b, and the liquid in the tube flows through the gap between the first movable flow path 702 and the first blocking cover 703.
Preferably, the first movable flow path 702 is movable between the second step of the first connection pipe 701 and the first blocking cover 703. Similarly, one end of the hydraulic second connector 800 is the same as the hydraulic first connector 700, and will not be described again.
It should be noted that the above embodiments are only for illustrating the technical solution of the present invention and not for limiting the same, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solution of the present invention may be modified or substituted without departing from the spirit and scope of the technical solution of the present invention, which is intended to be covered in the scope of the claims of the present invention.
Claims (7)
1. A grouting pump capable of grouting gravel, which is characterized in that: comprising the steps of (a) a step of,
the driving unit (100), the driving unit (100) comprises a frame (101), an executing mechanism (600) and a plunger sleeve (103), the plunger sleeve (103) is arranged on the executing mechanism (600) through a distance sleeve (104), and the frame (101) is arranged at the lower end of the executing mechanism (600);
the pulp discharging unit (200) comprises a pulp discharging sleeve (201), a pulp discharging valve seat (202), a pulp discharging interface (203) and a pulp discharging assisting cylinder (204), wherein the pulp discharging interface (203) is arranged on the plunger sleeve (103), the pulp discharging valve seat (202) and the pulp discharging sleeve (201) are fixed on the pulp discharging interface (203), and the pulp discharging assisting cylinder (204) is arranged on the pulp discharging valve seat (202);
the pulp sucking unit (300) comprises a pulp sucking sleeve (301), a pulp sucking valve seat (302) and a pulp sucking connector (303), wherein the pulp sucking sleeve (301) is arranged on the plunger sleeve (103), the pulp sucking valve seat (302) and the pulp sucking connector (303) are arranged on the pulp sucking sleeve (301), and a pulp sucking assisting cylinder (301 b) is further arranged in the pulp sucking sleeve (301);
the actuating mechanism (600) is a hydraulic cylinder, and further comprises a piston (102 e) and a piston rod (102 f), wherein the piston (102 e) is arranged on the inner side of the hydraulic cylinder, the piston rod (102 f) is arranged on the piston (102 e), and the piston rod (102 f) is arranged on the inner side of the plunger sleeve (103);
the power structure (400) comprises a driving device (401), a hydraulic cavity (402), a hydraulic oil tank (403), an output end (404), a backflow valve (405), a load pipeline (406), a pressure gauge (407), an overflow valve (408) and a relief valve (409), wherein the backflow valve (405) is communicated with the hydraulic cavity (402) through the load pipeline (406), the pressure gauge (407) and the overflow valve (408) are arranged at the upper end of the hydraulic cavity (402), the pressure gauge (407) can display pressure parameters of the hydraulic cavity (402), the relief valve (409) can release pressure in the hydraulic cavity (402), the hydraulic oil tank (403) further comprises a hydraulic oil inlet (403 a) and a hydraulic oil inlet valve (403 b), the hydraulic oil inlet (403 a) is connected with an external connection device, the oil supply device is used for controlling oil quantity through the hydraulic oil inlet valve (403 b), a filter (405 a) is further arranged on the backflow valve (405 a), and the oil filter (405 a) is arranged on the load pipeline (406) and can filter solid particles in the hydraulic oil;
the transmission mechanism (500) is a transmission pipeline and is a hydraulic energy conveying mechanism, and the transmission mechanism (500) is connected with the output end (404) of the power structure (400);
the transmission mechanism (500) comprises a hydraulic first connecting piece (700), a hydraulic second connecting piece (800) and a clamping connecting piece (900);
the actuating mechanism (600) further comprises a hydraulic pressure inlet (601), a hydraulic pressure return port (602) and an actuating cavity (603), wherein the hydraulic pressure inlet (601) is connected with the output end (404) of the power structure (400) through the transmission mechanism (500), and the transmission mechanism (500) conveys hydraulic oil to the actuating cavity (603) to be converted into mechanical energy and then pushes a piston rod (604) to be actuated;
a hydraulic first connecting piece (700) comprising a first connecting pipe (701), a first movable flow channel (702), a first plug cover (703) and a first connecting piece (704), wherein the first connecting pipe (701) is connected with an external hose, a second-stage step is arranged inside the first connecting pipe (701), a first-stage step hole of the first connecting pipe (701) protrudes out of the surface of the first connecting pipe (701), a port at the other end of the first connecting pipe (701) is toothed, namely, the port has elasticity, the outer end of the first connecting pipe (701) is also provided with a third external thread (701 b), a hose connected with the first connecting pipe (701) is inserted into the first connecting pipe (701) through the toothed port with elasticity, the internal thread of the first connecting piece (704) is matched with the third external thread (701 b), so that the diameter of the toothed port is expanded, the first connecting pipe (701) is buckled with the external hose, the first end of the first connecting pipe (701) is also provided with a third external thread (701 b), the first plug cover (703) is arranged in the first movable flow channel (703), the first plug cover (703) is provided with the first external thread (703), the first internal thread (701 a) is matched with the first external thread (703 a), the first movable flow channel (702) comprises a fourth connecting pipe (702 a), a first fixed magnet (702 b) and a fixing piece (702 c), one end of the fourth connecting pipe (702 a) is provided with a second external thread (702 a-1), the first fixed magnet (702 b) is sleeved on the fourth connecting pipe (702 a), and the first fixed magnet (702 b) is matched with the second external thread (702 a-1) through the second internal thread (702 c-1) of the fixing piece (702 c) to limit the first fixed magnet (702 b);
the hydraulic second connecting piece (800) comprises a second connecting pipe (801), wherein the second connecting pipe (801) is connected with another external hose, a second-stage stepped hole is formed in the second connecting pipe (801), the first-stage stepped hole of the second connecting pipe (801) protrudes out of the surface of the second connecting pipe (801), and the other end of the second connecting pipe (801) is the same as the first connecting pipe (701) and is connected with the hose in a clamping manner;
the clamping connection piece (900) comprises a first embedding shaft (901), a second embedding shaft (902) and a clamping sleeve ring (903), wherein a first moving magnet (901 a) is embedded in the first embedding shaft (901), the first embedding shaft (901) is sleeved on the first connecting pipe (701), a second moving magnet (902 a) is embedded in the second embedding shaft (902), the second embedding shaft (902) is sleeved on the second connecting pipe (801), the first embedding shaft (901) has the same structure as the second embedding shaft (902), the first embedding shaft (901) comprises a first limit groove (901 b), a first limit protrusion (901 c) and a first sunk groove (901 d), the first limit groove (901 b) is arranged on the surface of the first embedding shaft (901), one end of the first embedding shaft (901) is abutted to a port of the first sunk groove (d), the first limit groove (901 b) is abutted to a port of the first sunk groove (901), the first limit groove (901 b) is not overlapped with the first limit protrusion (901 b) in parallel to the first limit groove (c), the first limit protrusion (901 c) protrudes backward from the port of the first sink groove (901 d) and extends in the opposite direction to the first limit groove (901 b), the first limit protrusion (901 c) protrudes from the first sink groove (901 d) by twice as much as the first sink groove (901 d), and extends vertically to the outward direction by the same distance as the distance from the end (901 c-1) of the first limit protrusion (901 c) to the front end (901 c-2) of the first limit protrusion (901 c) adjacent thereto, and the second engaging shaft (902) comprises a second limit groove (902 b), a second limit protrusion (902 c) and a second sink groove (902 d) which are identical in structure to the corresponding structure of the first engaging shaft (901);
when the first embedded shaft (901) is matched with the second embedded shaft (902), the first movable magnet (901 a) is abutted to the step of the first stage step hole of the first embedded shaft (701), the first embedded shaft (901) and the first embedded shaft (701) are limited, the second movable magnet (902 a) is abutted to the step of the first stage step hole of the second embedded shaft (801), the second embedded shaft (902) and the second embedded shaft (801) are limited, at the moment, the first limiting protrusion (901 c) is inserted into the second sinking groove (902 d) of the second embedded shaft (902) through a gap at the second limiting protrusion (902 c) of the second embedded shaft (902), and the first limiting protrusion (901 c) and the second limiting protrusion (902 c) are mutually engaged, and the first embedded shaft (901) and the second embedded shaft (801) are limited in an up-down direction, and the first limiting protrusion (901 c) is connected with the first embedded shaft (801);
the clamping sleeve ring (903) is hollow, one end of the clamping sleeve ring (903) is provided with a limit lug (903 a), the other end of the clamping sleeve ring is provided with a limit buckle (903 b), a clamping boss (903 c) is arranged in the clamping sleeve ring, after the first embedded shaft (901) and the second embedded shaft (902) are clamped with each other, the first limit groove (901 b) and the second limit groove (902 b) are just corresponding, and are a slide way, the limit lug (903 a) of the clamping sleeve ring (903) is tilted, the clamping boss (903 c) moves along the first limit groove (901 b) and the second limit groove (902 b), the first embedded shaft (901) and the second embedded shaft (902) are limited until the limit buckle (903 b) is abutted to the tail end of the second limit groove (902 b), and the first embedded shaft (901) and the second embedded shaft (902) are prevented from rotating left and right.
2. The paste gravel injectable grouting pump according to claim 1, wherein: the pulp discharging unit (200) further comprises a pulp discharging assisting cylinder upper interface (205) and a pulp discharging assisting cylinder lower interface (206), the pulp discharging assisting cylinder upper interface (205) and the pulp discharging assisting cylinder lower interface (206) are arranged on the pulp discharging assisting cylinder (204), and the pulp discharging assisting cylinder (204) comprises a pulp discharging assisting cylinder piston rod (207); the pulp discharging sleeve (201) further comprises a pulp discharging valve ball (201 a) and a pulp discharging connector (201 b), wherein the pulp discharging valve ball (201 a) is arranged in the pulp discharging sleeve (201), and the pulp discharging connector (201 b) is arranged on the pulp discharging sleeve (201).
3. The paste gravel injectable grouting pump according to claim 2, wherein: the pulp sucking sleeve (301) further comprises a pulp sucking valve ball (301 a), an upper pulp sucking assisting cylinder interface (301 c) and a lower pulp sucking assisting cylinder interface (301 d), the pulp sucking valve ball (301 a) is arranged in the pulp sucking sleeve (301), a piston rod (301 e) of the pulp sucking assisting cylinder is arranged below the pulp sucking assisting cylinder (301 b), and the upper pulp sucking assisting cylinder interface (301 c) and the lower pulp sucking assisting cylinder interface (301 d) are arranged on the pulp sucking assisting cylinder (301 b).
4. A paste gravel injectable grouting pump according to claim 3, wherein: the pulp discharging assisting cylinder (204), the pulp discharging assisting cylinder piston rod (207) and the pulp discharging sleeve (201) are provided with seals, and the pulp sucking assisting cylinder (301 b), the pulp sucking assisting cylinder piston rod (301 e) and the pulp sucking sleeve (301) are provided with seals.
5. The paste gravel injectable grouting pump according to claim 4, wherein: the cylinder (102), the pulp discharging assisting cylinder (204) and the pulp sucking assisting cylinder (301 b) can be replaced by hydraulic cylinders.
6. The paste gravel injectable grouting pump according to claim 5, wherein: the plunger piston type hydraulic pressure device further comprises a pressure cap (1000) and a sealing group (1100), wherein the sealing group (1100) is arranged in the plunger piston sleeve (103), and threads are utilized to spin on the sealing group (1100) between the pressure cap (1000) and the plunger piston sleeve (103).
7. The paste gravel injectable grouting pump according to claim 6, wherein: the pulp discharging connector (201 b) and the pulp sucking connector (303) are provided with a section of thread and a section of wave-shaped step.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711490890.9A CN108005872B (en) | 2017-12-30 | 2017-12-30 | Grouting pump capable of injecting paste gravel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711490890.9A CN108005872B (en) | 2017-12-30 | 2017-12-30 | Grouting pump capable of injecting paste gravel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108005872A CN108005872A (en) | 2018-05-08 |
| CN108005872B true CN108005872B (en) | 2024-02-20 |
Family
ID=62049738
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711490890.9A Active CN108005872B (en) | 2017-12-30 | 2017-12-30 | Grouting pump capable of injecting paste gravel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108005872B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1254805A (en) * | 1968-03-11 | 1971-11-24 | Ind Shoe Machinery Corp | Apparatus for dispensing thermoplastic material |
| GB2168437A (en) * | 1984-12-14 | 1986-06-18 | Rossi & Catelli Spa | A positive pump, in particular, for fluid foodstuffs containing solid matter |
| CN201401303Y (en) * | 2009-04-08 | 2010-02-10 | 宁波凯明机器制造有限公司 | Suction pump undeslung maneuvering reciprocating pump |
| CN101813084A (en) * | 2010-03-29 | 2010-08-25 | 李光献 | Ball valve motion track positioning control type oil-well pump valve assembly |
| CN202510305U (en) * | 2012-04-07 | 2012-10-31 | 余铮 | Pneumatic water pump |
| CN103615428A (en) * | 2013-12-03 | 2014-03-05 | 三一汽车制造有限公司 | Hydraulic oil cylinder, pumping mechanism and thick liquid material pump |
| CN204646568U (en) * | 2015-05-19 | 2015-09-16 | 安徽创立煤矿机械有限公司 | A kind of hydraulic pressure grouting device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016039728A1 (en) * | 2014-09-09 | 2016-03-17 | Halliburton Energy Services, Inc. | Hybrid check valve |
-
2017
- 2017-12-30 CN CN201711490890.9A patent/CN108005872B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1254805A (en) * | 1968-03-11 | 1971-11-24 | Ind Shoe Machinery Corp | Apparatus for dispensing thermoplastic material |
| GB2168437A (en) * | 1984-12-14 | 1986-06-18 | Rossi & Catelli Spa | A positive pump, in particular, for fluid foodstuffs containing solid matter |
| CN201401303Y (en) * | 2009-04-08 | 2010-02-10 | 宁波凯明机器制造有限公司 | Suction pump undeslung maneuvering reciprocating pump |
| CN101813084A (en) * | 2010-03-29 | 2010-08-25 | 李光献 | Ball valve motion track positioning control type oil-well pump valve assembly |
| CN202510305U (en) * | 2012-04-07 | 2012-10-31 | 余铮 | Pneumatic water pump |
| CN103615428A (en) * | 2013-12-03 | 2014-03-05 | 三一汽车制造有限公司 | Hydraulic oil cylinder, pumping mechanism and thick liquid material pump |
| CN204646568U (en) * | 2015-05-19 | 2015-09-16 | 安徽创立煤矿机械有限公司 | A kind of hydraulic pressure grouting device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108005872A (en) | 2018-05-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108005872B (en) | Grouting pump capable of injecting paste gravel | |
| CN212716554U (en) | Chemical feeding device utilizing power of oil pumping unit and power driving mechanism of oil pumping unit | |
| CN206694341U (en) | A kind of break-in tool oil path high-pressure pressure-relief valve structure | |
| CN201031791Y (en) | Equal-diameter strong start and stop oil-well pump | |
| CN108150121A (en) | Jet flow pressurizing formula electric hydaulic bridge plug setting tool | |
| CN205154107U (en) | Well head hydraulic pressure lifting devices | |
| CN2627237Y (en) | Piston type hydraulic pump | |
| CN202545230U (en) | Polymer injection pump | |
| CN215672112U (en) | Oil field well head sealing hydraulic device | |
| CN210218013U (en) | Hydraulic double-liquid grouting pump | |
| CN110094317B (en) | Oil field water injection pump economizer system | |
| CN208330875U (en) | Integrate the device of dynamic Control oil circuit for Electrical hydrostatic actuator | |
| CN108644084B (en) | A kind of slush pump of hydraulic-driven | |
| CN209925158U (en) | Energy-saving system for water injection pump of oil field | |
| CN103790796B (en) | Hydrodynamic(al) pumping plant | |
| CN108730151B (en) | Hydraulically-driven high-pressure grouting pump | |
| CN203626692U (en) | Automatic backflow type well head sealing device | |
| CN201068643Y (en) | Pressure regulating type heavy pressure infusion plugging machine | |
| CN108591001B (en) | Hydraulically-driven high-pressure grouting pump | |
| CN102817820B (en) | Hydraulic drive type oil pumping suction booster | |
| CN103244404B (en) | Hydraulic seal slush pump | |
| CN202612083U (en) | Knobby suction valve | |
| CN218760389U (en) | High-sealing fine drawing pipe for oil well pump | |
| CN211009375U (en) | Oil cylinder for pile driver | |
| CN213838652U (en) | Pressure-increasing proportioning device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20231219 Address after: 509 Kangrui Times Square, Keyuan Business Building, No. 39 Huarong Road, Gaofeng Community, Dalang Street, Longhua District, Shenzhen City, Guangdong Province, 518109 Applicant after: Shenzhen lizhuan Technology Transfer Center Co.,Ltd. Address before: No. 10 Runxing Road, Private Development Zone, Zhenjiang City, Jiangsu Province, 212000 Applicant before: ZHENJIANG GREAT WALL GROUTING EQUIPMENT CO.,LTD. |
|
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20231227 Address after: No. 10 Runxing Road, Private Development Zone, Zhenjiang City, Jiangsu Province, 212021 Applicant after: ZHENJIANG GREAT WALL GROUTING EQUIPMENT CO.,LTD. Address before: 509 Kangrui Times Square, Keyuan Business Building, No. 39 Huarong Road, Gaofeng Community, Dalang Street, Longhua District, Shenzhen City, Guangdong Province, 518109 Applicant before: Shenzhen lizhuan Technology Transfer Center Co.,Ltd. |
|
| TA01 | Transfer of patent application right | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |