Radial vertical manifold piston pump

Abstract

The application relates to a radial vertical confluence piston pump, which comprises a pump base provided with an inlet liquid cavity, an outlet liquid cavity and a plurality of piston channels, the inlet liquid cavity and the outlet liquid cavity are located on the same end of the pump base, the inlet liquid cavity and the outlet liquid cavity are not provided with a cross-connection structure for mutual avoidance, and the piston channels are communicated with the inlet liquid cavity and the outlet liquid cavity; an inlet one-way valve is arranged at the communication position of the piston channel and the inlet liquid cavity; an outlet one-way valve is arranged at the communication position of the piston channel and the outlet liquid cavity; a piston rod is sealingly and slidably arranged in the piston channel at one end and located on the side of the piston channel away from the inlet liquid cavity and the outlet liquid cavity at the other end; and a piston driving assembly is connected to the other end of the piston rod outside the piston channel and used for driving the plurality of piston rods to perform different stepwise reciprocating linear motions. The application has the effects of realizing high water pumping precision, long service life, simple confluence, simple structure, simple assembly and small volume of the pump.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of pumps, in particular to a radial vertical converging piston pump. BACKGROUND

[0002] A pump is a machine that transports fluid with the application of mechanical energy. It increases the pressure of liquids, gases, or viscous fluids. Pumps operate by some form of mechanical input provided through an electric motor, combustion engine, or other driving unit, often using impellers, turbines, or other mechanisms, to increase the fluid's pressure and cause it to flow at high speed.

[0003] In the related art, such as the double-head diaphragm pump with publication number CN209261779U, the working principle is based on the reciprocating motion of the elastic diaphragm, and the liquid is sucked and discharged by alternately applying positive pressure and negative pressure, but in the process of long-time operation, the diaphragm will be repeatedly bent and broken, and the deformation of the diaphragm is random, which will make it difficult to control the water pumping accuracy of the water pump.

[0004] Such as the shaft matching flow radial piston pump with publication number CN1233929C, the working principle is that during the rotation of the rotor, the plunger is stretched out under the action of low-pressure oil or centrifugal force, and is pressed on the inner wall of the stator, the closed working volume gradually increases, a local vacuum is generated, and oil is sucked from the hydraulic oil tank through the oil suction cavity on the matching flow shaft, when the plunger rotates to the other half, it is pushed to the inside by the inner surface of the stator, the closed working volume gradually decreases, and high-pressure oil is discharged through the oil pressure cavity of the matching flow shaft. The disadvantage of this structure is that there is sliding friction between the plunger and the stator during rotation, and the sliding friction is large due to the action of oil pressure, so the service life is shortened. In addition, a dynamic sealing ring is needed at the converging point to separate the oil suction and oil discharge, and the dynamic sealing ring not only needs to prevent leakage but also needs to be resistant to friction, so the working requirements of the dynamic sealing ring are very high and it is easy to fail, so the service life is also shortened.

[0005] Such as the vertical single eccentric radial uniform distribution multi-connection reciprocating pump with publication number CN101457747A, the working principle is that the central eccentric wheel separates different plungers or pistons during rotation to achieve sliding towards or away from the center of the eccentric wheel, thereby achieving suction and discharge. The disadvantage of this structure is that each plunger or piston corresponds to an inlet channel and an outlet channel, so an additional converging module is needed to connect the multiple inlet channels and outlet channels in series, and the series structure between the multiple inlet channels and outlet channels needs to rely on different heights to complete the spatial position avoidance, thereby making the converging of the pump complicated, the structure complicated, the assembly complicated, and the volume large. SUMMARY

[0006] In order to realize high pumping precision, long service life, simple flow convergence, simple structure, simple assembly and small volume of the pump, the application provides a radial vertical flow convergence piston pump.

[0007] The radial vertical flow convergence piston pump provided by the application adopts the following technical scheme:

[0008] The radial vertical flow convergence piston pump comprises:

[0009] A pump base is provided with an inlet cavity, an outlet cavity and a plurality of piston channels, the inlet cavity and the outlet cavity are located on the same end of the pump base, the inlet cavity and the outlet cavity are not provided with a cross-communication structure formed for mutual avoidance, and the piston channels are in communication with the inlet cavity and the outlet cavity.

[0010] An inlet one-way valve is arranged at the communication position of the piston channel and the inlet cavity.

[0011] An outlet one-way valve is arranged at the communication position of the piston channel and the outlet cavity.

[0012] A piston rod is sealingly and slidingly arranged in the piston channel at one end and located on the side of the piston channel away from the inlet cavity and the outlet cavity at the other end.

[0013] A piston driving assembly is connected to the end of the piston rod outside the piston channel and used for driving the plurality of piston rods to perform different stepwise reciprocating linear movements.

[0014] By adopting the above technical scheme, first, the piston rod does not deform itself, and pumping is realized through the reciprocating movement of the piston rod, so that the pumping precision is high; second, the piston rod only performs reciprocating movement, so that the service life of the piston rod is relatively high, and the sealing between the inlet cavity and the outlet cavity is only simple static sealing, so that the service life of the pump is relatively high; third, the inlet cavity and the outlet cavity are only one, and neither of them is provided with a cross-communication structure formed for mutual avoidance, so that the pump has simple flow convergence, simple structure, simple assembly and small volume; fourth, the piston driving assembly is connected to the end of the piston rod outside the piston channel, and the end of the piston rod outside the piston channel is also located on the side away from the inlet cavity and the outlet cavity, so that the volume of the pump in the diameter direction can be reduced, the piston driving assembly can be quickly assembled and disassembled from the other end of the pump base, and therefore the assembly of the pump is simpler and the volume of the pump is smaller.

[0015] Preferably, the inlet cavity is annular, and the outlet cavity is located on the inner side of the inlet cavity.

[0016] Compared with the mode that the liquid inlet cavity and the liquid outlet cavity are arranged left and right, the volume of the pump base can be smaller under the condition that the volumes of the liquid inlet cavity and the liquid outlet cavity are unchanged, and the piston channels can be evenly distributed around the center line of the pump base, so that the mutual interference between the piston channels can be smaller, the movement of water in the pump is more stable, and the wall thickness between the piston channels can be larger, thereby reducing the manufacturing difficulty of the pump base.

[0017] Preferably, the pump base is integrally formed with a connecting joint, and the connecting joint is communicated with the liquid inlet cavity or the liquid outlet cavity.

[0018] By adopting the above technical scheme, the pump can be more easily matched with external pipelines, thereby improving the practicability of the pump.

[0019] Preferably, the liquid inlet one-way valve and the liquid outlet one-way valve are silica gel umbrella valves, the liquid inlet one-way valve is arranged at the communication position between the liquid inlet cavity and the piston channel, and the liquid outlet one-way valve is arranged in the liquid outlet cavity and covers the communication position between the piston channel and the liquid outlet cavity in the undeformed state.

[0020] By adopting the above technical scheme, the structure of the pump can be simpler, the assembly of the pump can be simpler, and the volume of the pump can be smaller, because the silica gel umbrella valves are selected as the one-way valves.

[0021] Preferably, the piston channels are arranged along the diameter direction of the pump base, a liquid connection channel is arranged between the piston channels and the liquid inlet cavity and the liquid outlet cavity, the liquid connection channel is communicated with the liquid inlet cavity and the liquid outlet cavity on the side close to the connecting joint, the liquid connection channel is communicated with the piston channels on the side away from the connecting joint, and the communication position between the liquid connection channel and the piston channels is farther away from the center of the pump base than the communication position between the liquid connection channel and the liquid inlet cavity and the liquid outlet cavity.

[0022] By adopting the above technical scheme, the liquid connection channel and the piston channels extend along the radial direction, and the communication position between the liquid connection channel and the piston channels is located at the position farthest away from the center of the pump base, so that the stroke of the piston rod can occupy a larger proportion of the length of the piston channels, thereby greatly reducing the axial size of the pump, slightly reducing the radial size of the pump, and improving the water efficiency of the pump.

[0023] Preferably, the flow area of the liquid connection channel on the side close to the liquid inlet cavity is larger than the flow area of the liquid connection channel on the side close to the liquid outlet cavity.

[0024] By adopting the technical scheme, the size of the liquid connection channel in the radial direction can be reduced, and the volume of the pump can be further reduced while maintaining sufficient volume of the liquid connection channel.

[0025] Preferably, the pump base has a connecting end cover, a valve support, a piston cylinder and a pump base along the axial direction in sequence, the connecting end cover is provided with the connecting joint, and the side of the connecting end cover away from the connecting joint is provided with a liquid inlet tank and a liquid outlet tank; the valve support is connected to the end face of the connecting end cover away from the connecting joint, and the side of the valve support close to the connecting end cover is also provided with the liquid inlet tank and the liquid outlet tank, the two liquid inlet tanks are combined to form a liquid inlet cavity, the two liquid outlet tanks are combined to form a liquid outlet cavity, and the end face of the valve support away from the connecting end cover is provided with the liquid connection channel; the piston cylinder is connected to the end face of the valve support away from the connecting end cover, one piston cylinder is provided with one piston channel, and a plurality of piston cylinders are arranged in a closed circle around the axis of the pump base; and the pump base is connected to the end face of the piston cylinder away from the valve support, and the pump base is provided with the piston driving assembly.

[0026] By adopting the technical scheme, each individual element only needs to be simply treated by slotting or hole opening, and the pump is assembled in sequence along the axial direction, so that the structure of the pump is simple and the assembly is simple; secondly, different specifications of the connecting end cover and the valve support are only needed to be replaced, and different numbers of the piston cylinder are only needed to be configured, so that the pump with different numbers of piston rods can be manufactured, and the manufacturing of different specifications of the pump is more easily realized.

[0027] Preferably, the connecting end cover and the valve support and the valve support and the piston cylinder are provided with an axial stepped joint part, the axial stepped joint part is exposed on the circumferential side of the pump base, the axial stepped joint part is in a structure of protrusion and groove embedded, and the axial stepped joint part is provided with a bolt; and the piston cylinders are provided with a circumferential stepped joint part, the circumferential stepped joint part is exposed on the circumferential side of the pump base, the circumferential stepped joint part is in a structure of protrusion embedded up and down, and the circumferential stepped joint part is provided with a bolt.

[0028] By adopting the technical scheme, the axial stepped joint part realizes accurate assembly of the connecting end cover, the valve support and the piston cylinder, and the circumferential stepped joint part realizes accurate assembly of the plurality of piston cylinders, so that the sealing performance of the liquid inlet cavity, the liquid outlet cavity, the liquid connection channel and the piston channel is improved while the assembly is simple.

[0029] Preferably, a cavity sealing ring is arranged between the valve support and the connecting end cover, the cavity sealing ring is divided into an outer sealing part, an inner sealing part and an intermediate connecting part, the outer sealing part is embedded outside the circumferential side of the liquid inlet cavity, the inner sealing part is located between the liquid inlet cavity and the liquid outlet cavity, and the intermediate connecting part is connected to the outer sealing part and the inner sealing part at both ends; the side wall of the liquid inlet tank is provided with a support rib, one intermediate connecting part is matched with two spaced support ribs, and one support rib supports one end of the intermediate connecting part close to the outer sealing part or the inner sealing part.

[0030] By adopting the above technical scheme, one sealing ring can realize the outer sealing of the connecting end cover and the valve support and the inner sealing between the liquid inlet cavity and the liquid outlet cavity, and the support rib can support the intermediate connecting part to prevent the inner sealing part from being deviated during assembly of the connecting end cover and the valve support, so that the quick assembly of the connecting structure and the sealing structure between the connecting end cover and the valve support can be realized.

[0031] Preferably, the piston driving assembly comprises a driving motor and an eccentric wheel, the housing of the driving motor is connected to one side of the pump base away from the piston cylinder, and the output shaft of the driving motor extends into the space between the pump base and the piston cylinder; the eccentric wheel is arranged between the pump base and the piston cylinder, the eccentric wheel is coaxially connected to the output shaft of the driving motor, the end face of the eccentric wheel close to the piston cylinder is provided with a guide ring groove, one end of the piston rod outside the piston channel is embedded in the guide ring groove, and the guide ring groove and the eccentric wheel are arranged in a non-coaxial manner.

[0032] By adopting the above technical scheme, the piston rod can enter and exit the guide ring groove along the axial direction of the pump base, so that the piston rods can move in different steps while achieving reciprocating linear motion, the assembly and disassembly of the piston rod and the eccentric wheel are simpler, and the pump base can be directly disassembled from the other end of the pump, so that different types of driving motors can be replaced more easily according to different needs.

[0033] In summary, the present application has at least one of the following beneficial technical effects:

[0034] 1. Firstly, the piston rod does not deform itself, and water is pumped by the reciprocating movement of the piston rod, so the water pumping precision is high; secondly, the piston rod only reciprocates, so the service life of the piston rod is relatively high, and the sealing between the inlet cavity and the outlet cavity is only a simple static seal, so the service life of the pump is relatively high; thirdly, the inlet cavity and the outlet cavity are only one, and neither the inlet cavity nor the outlet cavity has a spanning communication structure formed for mutual avoidance, so the pump has simple flow convergence, simple structure, simple assembly and small size; fourthly, the piston driving assembly is connected to the end of the piston rod outside the piston channel, and the end of the piston rod outside the piston channel is also away from the side where the inlet cavity and the outlet cavity are located, so the volume of the pump in the diameter direction can be reduced, and the piston driving assembly can be quickly assembled and disassembled from the other end of the pump base, so the pump can be assembled more simply and has a smaller size.

[0035] 2. Compared with the way that the inlet cavity and the outlet cavity are arranged side by side, this design, firstly, the volume of the pump base can be smaller under the condition that the volume of the inlet cavity and the outlet cavity is unchanged; secondly, the piston channels can be evenly distributed around the center line of the pump base, so that the mutual interference between the piston channels can be smaller, the movement of water in the pump is more stable, and the wall thickness between the piston channels can be larger, thereby reducing the manufacturing difficulty of the pump base.

[0036] 3. The liquid connection channel and the piston channel extend in the radial direction, and the communication between the liquid connection channel and the piston channel is located at the position farthest from the center of the pump base, so the stroke of the piston rod can occupy a larger proportion of the length of the piston channel, thereby the axial size of the pump can be greatly reduced, the radial size of the pump can be slightly reduced, and the water pumping efficiency can be improved. BRIEF DESCRIPTION OF DRAWINGS

[0037] Figure 1 is a sectional view of the piston pump in the embodiment of the application.

[0038] Figure 2 is a schematic diagram for embodying the liquid path in the liquid suction and discharge states in the embodiment of the application.

[0039] Figure 3 is a schematic diagram for embodying the assembly structure between the components in the pump base in the embodiment of the application.

[0040] Figure 4 is a schematic diagram for embodying the cooperation structure between the cavity sealing ring and the valve support in the embodiment of the application.

[0041] Explanation of reference signs: 1, pump base; 11, liquid inlet cavity; 12, liquid outlet cavity; 13, piston channel; 14, connecting joint; 15, liquid connection channel; 2, liquid inlet check valve; 21, liquid outlet check valve; 3, piston rod; 4, piston drive assembly; 41, drive motor; 42, eccentric wheel; 421, guide ring groove; 5, connecting end cover; 51, valve support; 52, piston cylinder; 53, pump base; 6, liquid inlet tank; 61, liquid outlet tank; 7, axial stepped joint; 71, circumferential stepped joint; 8, cavity sealing ring; 81, outer sealing part; 82, inner sealing part; 83, intermediate connecting part; 9, support rib. DETAILED DESCRIPTION

[0042] The following will be described in detail below with reference to the accompanying drawings. Figures 1-4 The application is further described in detail.

[0043] The embodiment of the application discloses a radial vertical converging piston pump.

[0044] Reference Figure 1 and Figure 2 The radial vertical converging piston pump comprises a pump base 1, a liquid inlet check valve 2, a liquid outlet check valve 21, a piston rod 3 and a piston drive assembly 4. Specifically, the pump base 1 is provided with a liquid inlet cavity 11, a liquid outlet cavity 12 and a plurality of piston channels 13. The liquid inlet cavity 11 and the liquid outlet cavity 12 are located on the same end of the pump base 1. The liquid inlet cavity 11 and the liquid outlet cavity 12 are not formed in a cross-communication structure for mutual avoidance, that is, each part of the liquid inlet cavity 11 and the liquid outlet cavity 12 is at the same height in the axial direction of the pump base 1. The piston channels 13 are in communication with the liquid inlet cavity 11 and the liquid outlet cavity 12, so that the liquid path structure in the pump is formed.

[0045] Reference Figure 1 and Figure 2 The liquid inlet check valve 2 is arranged at the communication position of the piston channel 13 and the liquid inlet cavity 11, so that water can only flow from the liquid inlet cavity 11 into the piston channel 13. The liquid outlet check valve 21 is arranged at the communication position of the piston channel 13 and the liquid outlet cavity 12, so that water can only flow from the piston channel 13 into the liquid outlet cavity 12. One end of the piston rod 3 is sealingly and slidingly arranged in the piston channel 13, and the other end is located on the side of the piston channel 13 away from the liquid inlet cavity 11 and the liquid outlet cavity 12. The piston drive assembly 4 is connected to the end of the piston rod 3 outside the piston channel 13, and the piston drive assembly 4 drives the plurality of piston rods 3 to perform different stepwise reciprocating linear motions.

[0046] Reference Figure 1 and Figure 2The structure of the present application has the following advantages: first, the piston rod 3 does not deform itself, and water pumping is achieved by the reciprocating movement of the piston rod 3, so the water pumping accuracy is high; second, the piston rod 3 only reciprocates, so the service life of the piston rod 3 is relatively high, and the sealing between the inlet chamber 11 and the outlet chamber 12 is only a simple static seal, so the service life of the pump is relatively high; third, the inlet chamber 11 and the outlet chamber 12 are only one, and the inlet chamber 11 and the outlet chamber 12 do not have a spanning communication structure formed for mutual avoidance, so the pump has simple flow convergence, simple structure, simple assembly, and small size; fourth, the piston driving assembly 4 is connected to the end of the piston rod 3 outside the piston channel 13, and the end of the piston rod 3 outside the piston channel 13 is also away from the side where the inlet chamber 11 and the outlet chamber 12 are located, which can not only reduce the volume of the pump in the diameter direction, but also enable the piston driving assembly 4 to be quickly assembled and disassembled from the other end of the pump base 1, so that the pump can be more easily assembled and have a smaller size.

[0047] In addition, in the present embodiment, considering that the pump also needs to be connected to external pipelines, the pump base 1 is integrally formed with connection joints 14, and the connection joints 14 have two, one of which communicates with the inlet chamber 11, and the other connection joint 14 communicates with the outlet chamber 12.

[0048] Referring to Figure 1 and Figure 2 , in order to reduce the size of the pump, the layout between the inlet chamber 11 and the outlet chamber 12 can be considered, specifically, the inlet chamber 11 is annular, and the outlet chamber 12 is located inside the inlet chamber 11, so that the end surface area of the pump base 1 can be larger under the condition that the circumferential length of the pump base 1 is the same, thereby considering the requirements of small size and large capacity of the inlet chamber 11 and the outlet chamber 12, and in addition, the piston channels 13 can be evenly distributed around the center line of the pump base 1, so that the mutual interference between the piston channels 13 can be smaller, the movement of water in the pump is more stable, and the wall thickness between the piston channels 13 can be larger, thereby reducing the manufacturing difficulty of the pump base 1.

[0049] Referring to Figure 1 and Figure 2In order to reduce the volume of the pump, the inlet one-way valve 2 and the outlet one-way valve 21 can be considered, specifically, the inlet one-way valve 2 and the outlet one-way valve 21 are silicone umbrella valves, the inlet one-way valve 2 is arranged at the communication between the inlet cavity 11 and the piston channel 13, and the outlet one-way valve 21 is arranged in the outlet cavity 12, and the outlet one-way valve 21 blocks the communication between the piston channel 13 and the outlet cavity 12 in the undeformed state. The above structure has the following advantages: first, the structure of the pump can be further simplified, the assembly is simpler, and the volume is smaller, thanks to the characteristics of the silicone umbrella valve; second, the special structure of the outlet one-way valve 21 utilizes the larger volume of the outlet cavity 12, so that the channel between the piston channel 13 and the outlet cavity 12 can be smaller, where smaller refers to the size of the channel in the axial direction, so that the volume of the pump can be smaller.

[0050] Referring to Figure 1 and Figure 2 , in order to reduce the volume of the pump, the cooperation structure between the piston channel 13 and the inlet cavity 11 and the outlet cavity 12 can also be considered, specifically, the piston channel 13 extends along the diameter direction of the pump base 1, the liquid connection channel 15 is arranged between the piston channel 13 and the inlet cavity 11 and the outlet cavity 12, the liquid connection channel 15 extends along the radial direction, the inlet cavity 11 and the outlet cavity 12 are communicated with the liquid connection channel 15 near the connection joint 14, and the piston channel 13 is communicated with the liquid connection channel 15 away from the connection joint 14, the communication between the liquid connection channel 15 and the piston channel 13 is farther away from the center of the pump base 1 than the communication between the liquid connection channel 15 and the inlet cavity 11 and the outlet cavity 12, that is, the communication between the liquid connection channel 15 and the piston channel 13 is farther away from the center of the pump base 1, so that the stroke of the piston rod 3 can occupy a larger proportion of the length of the piston channel 13, thereby not only the axial size of the pump can be greatly reduced, but also the radial size of the pump can be slightly reduced, and the water efficiency of the pump can be improved.

[0051] Referring to Figure 1 and Figure 2 , the liquid connection channel 15 needs a relatively large volume, but in order to maintain the small volume of the pump as much as possible, the flow area of the liquid connection channel 15 near the inlet cavity 11 is larger than that near the outlet cavity 12, so that the size of the liquid connection channel 15 in the radial direction can be reduced while maintaining the sufficient volume of the liquid connection channel 15, thereby the volume of the pump can be further reduced.

[0052] Referring to Figure 1 and Figure 3, in order to improve the pump assembly convenience, the pump base 1 has a connecting end cover 5, a valve support 51, a piston cylinder 52 and a pump base 53 in sequence along the axis direction, the connecting end cover 5 is provided with a connecting joint 14, and the side of the connecting end cover 5 away from the connecting joint 14 is provided with a liquid inlet tank 6 and a liquid outlet tank 61; the valve support 51 is connected to the end face of the connecting end cover 5 away from the connecting joint 14, and the side of the valve support 51 close to the connecting end cover 5 is also provided with a liquid inlet tank 6 and a liquid outlet tank 61, two liquid inlet tanks 6 are combined to form a liquid inlet cavity 11, and two liquid outlet tanks 61 are combined to form a liquid outlet cavity 12, and the end face of the valve support 51 away from the connecting end cover 5 is provided with a liquid connection channel 15; the piston cylinder 52 is connected to the end face of the valve support 51 away from the connecting end cover 5, one piston cylinder 52 is provided with a piston channel 13, and a plurality of piston cylinders 52 are arranged in a circumferential closed manner around the axis of the pump base 1, that is, a plurality of piston cylinders 52 are spliced to completely occupy the non-passing position of the pump base 1 in the circumferential direction; the pump base 53 is connected to the end face of the piston cylinder 52 away from the valve support 51, and the pump base 53 is provided with a piston driving assembly 4.

[0053] Referring to Figure 1 and Figure 3 , the assembly structure of the above-mentioned pump base 53 has the following advantages: first, only simple processing such as slotting or hole opening is required on each individual element, and the assembly is spliced in sequence along the axis direction, so that the structure of the pump is simple and the assembly is simple; second, only different specifications of the connecting end cover 5 and the valve support 51 need to be replaced, and different numbers of the piston cylinder 52 need to be configured, so that pumps with different numbers of piston rods 3 can be made, thereby more easily realizing the manufacturing of pumps with different specifications.

[0054] Referring to Figure 1 and Figure 3 , in order to accurately realize the splicing between the various components in the pump base 53, the following settings are correspondingly provided: an axial stepped splicing part 7 is arranged between the connecting end cover 5 and the valve support 51 and between the valve support 51 and the piston cylinder 52, the axial stepped splicing part 7 is exposed on the circumferential side of the pump base 1, the axial stepped splicing part 7 is in a structure of protrusion and groove fitting, that is, one of the components has a protrusion and the other component has a groove, and the axial stepped splicing part 7 is provided with a bolt for fixing; a circumferential stepped splicing part 71 is arranged between the piston cylinders 52, the circumferential stepped splicing part 71 is exposed on the circumferential side of the pump base 1, the circumferential stepped splicing part 71 is in a structure of protrusion fitting up and down, that is, the two adjacent components both have protrusions, one protrusion is up and one protrusion is down, and then the two protrusions are fitted up and down, and the circumferential stepped splicing part 71 is provided with a bolt for fixing. In summary, the axial stepped splicing part 7 realizes the accurate splicing between the connecting end cover 5, the valve support 51 and the piston cylinder 52, and the circumferential stepped splicing part 71 realizes the accurate splicing between the plurality of piston cylinders 52, thereby improving the sealing performance of the liquid inlet cavity 11, the liquid outlet cavity 12, the liquid connection channel 15 and the piston channel 13 while realizing the simple assembly.

[0055] With reference to Figure 1 and Figure 3 , in order to more simply realize the sealing assembly between the connecting end cover 5 and the valve support 51, a cavity sealing ring 8 is arranged between the valve support 51 and the connecting end cover 5, the cavity sealing ring 8 is divided into an outer sealing part 81, an inner sealing part 82 and an intermediate connecting part 83, the outer sealing part 81 is embedded outside the circumferential side of the liquid inlet cavity 11, specifically, the end face of the valve support 51 close to the connecting end cover 5 is provided with a groove, the outer circumferential side of the outer sealing part 81 abuts on the side wall of the groove, so as to fix the installation position of the outer sealing part 81, the inner sealing part 82 is located between the liquid inlet cavity 11 and the liquid outlet cavity 12, the intermediate connecting part 83 is connected with the outer sealing part 81 and the inner sealing part 82 at both ends respectively, and meanwhile, the side wall of the liquid inlet cavity 6 is integrally formed with a support rib 9, one intermediate connecting part 83 cooperates with two spaced support ribs 9, and one support rib 9 supports one end of the intermediate connecting part 83 close to the outer sealing part 81 or the inner sealing part 82.

[0056] With reference to Figure 1 and Figure 4 , according to the cooperation structure between the connecting end cover 5 and the valve support 51, it can be known that only one sealing ring is used, the outer sealing of the connecting end cover 5 and the valve support 51 and the inner sealing between the liquid inlet cavity 11 and the liquid outlet cavity 12 can be realized, and meanwhile, the support rib 9 can support the intermediate connecting part 83, so as to prevent the inner sealing part 82 from being deviated during the assembly of the connecting end cover 5 and the valve support 51, thereby realizing the quick assembly of the connection structure and the sealing structure between the connecting end cover 5 and the valve support 51.

[0057] With reference to Figure 1 Figure 4 Figure 1, if the function and effect of the pump are different, for example, the flow size needs to be controlled, or the precision needs to be controlled, or the effect of large flow and large pressure needs to be obtained, different types of power sources usually need to be replaced, in order to facilitate the replacement of the power source, the following settings are provided, the piston driving assembly 4 includes a driving motor 41 and an eccentric wheel 42, the shell of the driving motor 41 is connected to the pump base 53 away from the piston cylinder 52 on one side, the output shaft of the driving motor 41 extends into the pump base 53 and the piston cylinder 52; the eccentric wheel 42 is arranged between the pump base 53 and the piston cylinder 52, the eccentric wheel 42 is coaxially connected to the output shaft of the driving motor 41, the end face of the eccentric wheel 42 close to the piston cylinder 52 is provided with a guide ring groove 421, the guide ring groove 421 is embedded for the end of the piston rod 3 outside the piston channel 13, the guide ring groove 421 and the eccentric wheel 42 are not coaxially arranged, according to the cooperation structure between the eccentric wheel 42 and the piston rod 3, the piston rod 3 can enter and exit the guide ring groove 421 along the axial direction of the pump base 1, so that the piston rod 3 and the eccentric wheel 42 are more simple to assemble and disassemble while realizing the different step reciprocating linear motion of the plurality of piston rods 3, at the same time, the pump base 53 can be directly removed from the other end of the pump, so that different types of driving motors 41 can be easily replaced according to different needs.

[0058] The implementation principle of the radial vertical confluence piston pump according to the embodiment of the application is as follows: first, the piston rod 3 does not deform itself, and the water pumping is realized through the reciprocating motion of the piston rod 3, so that the water pumping precision is high; second, the piston rod 3 only reciprocates, so that the service life of the piston rod 3 is relatively high, and the sealing between the inlet chamber 11 and the outlet chamber 12 is only a simple static sealing, so that the service life of the pump is relatively high; third, the inlet chamber 11 and the outlet chamber 12 are only one, and neither of them has a spanning communication structure formed for mutual avoidance, so that the pump has simple confluence, simple structure, simple assembly and small size; fourth, the piston driving assembly 4 is connected to the end of the piston rod 3 outside the piston channel 13, and the end of the piston rod 3 outside the piston channel 13 is also away from the side where the inlet chamber 11 and the outlet chamber 12 are located, so that the volume of the pump in the diameter direction can be reduced, and the piston driving assembly 4 can be quickly assembled and disassembled from the other end of the pump base 1, so that the pump can be more simply assembled and have smaller size.

[0059] The above are preferred embodiments of the application, which do not limit the protection scope of the application, therefore: any equivalent changes made on the structure, shape and principle of the application should be covered within the protection scope of the application.

Claims

1. A radial vertical manifolded piston pump characterized by: The utility model relates to a pump seat (1) is provided with one liquid inlet chamber (11), one liquid outlet chamber (12) and multiple piston channels (13), the liquid inlet chamber (11) and the liquid outlet chamber (12) are located on the same end of the pump seat (1), the liquid inlet chamber (11) and the liquid outlet chamber (12) do not have the crosswise communication structure formed for each other to avoid, the piston channel (13) is communicated with the liquid inlet chamber (11) and the liquid outlet chamber (12), The utility model relates to a pump seat (1) is provided with one liquid inlet chamber (11), one liquid outlet chamber (12) and multiple piston channels (13), the liquid inlet chamber (11) and the liquid outlet chamber (12) are located on the same end of the pump seat (1), the liquid inlet chamber (11) and the liquid outlet chamber (12) do not have the crosswise communication structure formed for each other to avoid, the piston channel (13) is communicated with the liquid inlet chamber (11) and the liquid outlet chamber (12), The utility model relates to a pump seat (1) is provided with one liquid inlet chamber (11), one liquid outlet chamber (12) and multiple piston channels (13), the liquid inlet chamber (11) and the liquid outlet chamber (12) are located on the same end of the pump seat (1), the liquid inlet chamber (11) and the liquid outlet chamber (12) do not have the crosswise communication structure formed for each other to avoid, the piston channel (13) is communicated with the liquid inlet chamber (11) and the liquid outlet chamber (12), The utility model relates to a pump seat (1) is provided with one liquid inlet chamber (11), one liquid outlet chamber (12) and multiple piston channels (13), the liquid inlet chamber (11) and the liquid outlet chamber (12) are located on the same end of the pump seat (1), the liquid inlet chamber (11) and the liquid outlet chamber (12) do not have the crosswise communication structure formed for each other to avoid, the piston channel (13) is communicated with the liquid inlet chamber (11) and the liquid outlet chamber (12), The liquid inlet chamber (11) is annular, and the liquid outlet chamber (12) is located on the inside of the liquid inlet chamber (11), The pump seat (1) is integrally formed with a connecting joint (14), and the connecting joint (14) communicates the liquid inlet chamber (11) or the liquid outlet chamber (12), The piston channel (13) extends along the diameter direction of the pump seat (1), a liquid connection channel (15) is arranged between the piston channel (13) and the liquid inlet chamber (11) and the liquid outlet chamber (12), one side of the liquid connection channel (15) close to the connecting joint (14) communicates the liquid inlet chamber (11) and the liquid outlet chamber (12), one side of the liquid connection channel (15) away from the connecting joint (14) communicates the piston channel (13), and the communication position of the liquid connection channel (15) and the piston channel (13) is farther away from the center of the pump seat (1) than the communication position of the liquid connection channel (15) and the liquid inlet chamber (11) and the liquid outlet chamber (12), The flow area of one side of the liquid connection channel (15) close to the liquid inlet chamber (11) is greater than the flow area of one side of the liquid connection channel (15) close to the liquid outlet chamber (12). The liquid inlet one-way valve (2) and the liquid outlet one-way valve (21) are silica gel umbrella valves, the liquid inlet one-way valve (2) is arranged at the communication position of the liquid inlet chamber (11) and the piston channel (13), the liquid outlet one-way valve (21) is arranged in the liquid outlet chamber (12), and the liquid outlet one-way valve (21) blocks the communication position of the piston channel (13) and the liquid outlet chamber (12) in the undeformed state. ​ 2. The radial upright converging piston pump according to claim 1, characterized in that: ​ 3. The radial upright converging piston pump of claim 1, wherein: The pump base (1) has a connecting end cover (5), a valve support (51), a piston cylinder (52) and a pump base (53) in sequence along the axial direction, the connecting end cover (5) is provided with the connecting joint (14), and the side of the connecting end cover (5) away from the connecting joint (14) is provided with a liquid inlet tank (6) and a liquid outlet tank (61); the valve support (51) is connected to the end face of the connecting end cover (5) away from the connecting joint (14), and the side of the valve support (51) close to the connecting end cover (5) is also provided with the liquid inlet tank (6) and the liquid outlet tank (61), the two liquid inlet tanks (6) are combined to form a liquid inlet cavity (11), the two liquid outlet tanks (61) are combined to form a liquid outlet cavity (12), and the end face of the valve support (51) away from the connecting end cover (5) is provided with the liquid connection channel (15); the piston cylinder (52) is connected to the end face of the valve support (51) away from the connecting end cover (5), one piston cylinder (52) is provided with one piston channel (13), and a plurality of piston cylinders (52) are arranged in a circular closed manner around the axis of the pump base (1); the pump base (53) is connected to the end face of the piston cylinder (52) away from the valve support (51), and the pump base (53) is provided with the piston driving assembly (4).

4. The radial upright converging piston pump of claim 3, wherein: The connecting end cover (5) and the valve support (51) are provided with an axial stepped joint (7), the axial stepped joint (7) is exposed on the side of the pump base (1), the axial stepped joint (7) is in a structure of protrusion and groove embedded, and the axial stepped joint (7) is provided with a bolt; the piston cylinders (52) are provided with a circumferential stepped joint (71), the circumferential stepped joint (71) is exposed on the side of the pump base (1), the circumferential stepped joint (71) is in a structure of protrusion embedded up and down, and the circumferential stepped joint (71) is provided with a bolt.

5. The radial upright converging piston pump of claim 3, wherein: The valve support (51) and the connecting end cover (5) are provided with a cavity dividing sealing ring (8), the cavity dividing sealing ring (8) is divided into an outer sealing part (81), an inner sealing part (82) and an intermediate connecting part (83), the outer sealing part (81) is embedded outside the liquid inlet cavity (11), the inner sealing part (82) is located between the liquid inlet cavity (11) and the liquid outlet cavity (12), and the intermediate connecting part (83) is connected to the outer sealing part (81) and the inner sealing part (82) at both ends; the side wall of the liquid inlet tank (6) is provided with a support rib (9), one intermediate connecting part (83) is matched with two spaced support ribs (9), and one support rib (9) supports one end of the intermediate connecting part (83) close to the outer sealing part (81) or the inner sealing part (82).

6. The radial upright converging piston pump of claim 3, wherein: The piston driving assembly (4) comprises a driving motor (41) and an eccentric wheel (42), the housing of the driving motor (41) is connected on the side of the pump base (53) away from the piston cylinder (52), the output shaft of the driving motor (41) extends into the pump base (53) and the piston cylinder (52); the eccentric wheel (42) is arranged between the pump base (53) and the piston cylinder (52), the eccentric wheel (42) is coaxially connected on the output shaft of the driving motor (41), the end face of the eccentric wheel (42) close to the piston cylinder (52) is provided with a guide ring groove (421), the guide ring groove (421) is embedded for the end of the piston rod (3) outside the piston channel (13), the guide ring groove (421) and the eccentric wheel (42) are non-coaxially arranged.

Images