Flow regulation type plunger reciprocating pump

Abstract

The invention relates to the technical field of reciprocating pumps, and discloses a flow regulation type plunger reciprocating pump which comprises a fixed pump body, one end of the fixed pump body is provided with a stroke cavity, one end of the stroke cavity is provided with a transfer cavity, the transfer cavity is provided with a group of transfer holes into which a liquid discharge pipe and a liquid inlet pipe are inserted respectively, and a one-way transfer valve is arranged in the liquid discharge pipe; a filtering mechanism and a sealing transmission assembly are arranged in the liquid inlet pipe, the filtering mechanism is composed of a flow dividing pipe, a sealing pipe and a clamping ring, an annular filtering cavity is formed between the flow dividing pipe and the sealing pipe, multiple sets of transmission sieve plates are arranged on the inner wall of the flow dividing pipe, and the clamping ring is clamped to the top of the annular filtering cavity; compared with the prior art, through the combined structure of the annular filtering cavity and the L-shaped multi-group flow dividing channels, multi-path flow dividing filtering of liquid is achieved, the effective filtering area is increased, compared with a traditional multi-layer filter screen structure, the design enables the pressure loss of a system to be reduced, the pump body load can be reduced under the same flow, and the transmission sieve plate is matched with the annular cavity; the filtering precision is ensured and the filtering layer is prevented from being easily blocked.

Description

Technical Field

[0001] The present invention relates to the technical field of reciprocating pumps, and specifically to a flow-regulating plunger reciprocating pump. Background Technique

[0002] As a core device for fluid transportation achieved through the periodic movement of a piston or plunger, reciprocating pumps are widely used in fields such as sewage treatment, petrochemical industry, and mine drainage. Its working principle relies on the generation of pressure difference due to volume change, and it has advantages such as high lift and strong adaptability to high-viscosity media.

[0003] In the prior art, in the scenario of transporting sewage containing impurities, the mixing of foreign substances such as solid particles and fibers easily causes problems such as pump body blockage, valve group jamming, and seal failure. In severe cases, it may even lead to wear or damage of key components (such as pistons and cylinder blocks), significantly reducing the service life and operating efficiency of the equipment.

[0004] Single-stage filtration structures (such as a single filter screen or filter cartridge) are difficult to balance the requirements of intercepting large particles and blocking fine impurities. Although multi-stage filtration schemes can improve the filtration accuracy, the series design of multiple layers of filtration increases the water flow resistance. In Chinese Patent CN218076705U, a reciprocating pump filtration device is mentioned, in which a first and a second filtration tank and filter plates are provided for foreign matter filtration treatment. However, in actual use, the filtration components need to be cleaned separately, the operation is cumbersome and time-consuming, and due to the setting of multiple filtration components, inconsistent cleaning cycles may lead to overload failure of a certain level. For this reason, we propose a flow-regulating plunger reciprocating pump to solve the above problems. Summary of the Invention

[0005] The purpose of the present invention is to provide a flow-regulating plunger reciprocating pump to solve the problems raised in the above background technique.

[0006] To achieve the above purpose, the present invention provides the following technical solution: A flow-regulating plunger reciprocating pump, including,

[0007] A fixed pump body, one end of which is provided with a stroke cavity, one end of the stroke cavity is installed with a transfer cavity, a set of transmission holes into which a liquid discharge pipe and a liquid inlet pipe are respectively inserted are opened on the transfer cavity, and a one-way transmission valve is arranged inside the liquid discharge pipe;

[0008] Among them, a filtering mechanism and a sealing transmission component are arranged inside the liquid inlet pipe, the filtering mechanism is composed of a shunt pipe, a sealing pipe and a clamping ring, an annular filtering chamber is formed between the shunt pipe and the sealing pipe, a plurality of transmission screen plates are arranged on the inner wall of the shunt pipe, the clamping ring is clamped on the top of the annular filtering chamber, and the liquid entering the shunt pipe can pass through the annular filtering chamber and be transported to the bottom of the filtering mechanism along the transmission screen plate, the sealing transmission component is composed of a pair of piston shafts, a negative pressure driven transmission pipe is inserted inside the pair of piston shafts, the transmission pipe is used to transport the liquid to the inside of the transfer chamber, and during the operation of the reciprocating pump, the piston rod can be moved in the stroke chamber The operation of the part can allow the transmitted liquid to enter the transfer chamber along the liquid inlet pipe and be discharged along the liquid discharge pipe. When entering the liquid inlet pipe, as the piston rod reciprocates and controls the change of the air pressure inside the transfer chamber, the liquid can be transmitted in cooperation with the sealing transmission component, and the filtering mechanism can discharge the excess impurities in the liquid to reduce the barrier of impurities absorbed in the sewage after entering the transfer chamber. The sewage can be diverted and transmitted with the help of the diversion pipe, and the sewage can be filtered in cooperation with the annular filter chamber. The filtering effect is enhanced by increasing the filtering area. Compared with setting multiple layers of fine filtering layers, the load on the operation of the reciprocating pump can be reduced.

[0009] Preferably, the shunt pipe is provided with multiple groups of shunt channels, which are in an "L" shape and are evenly arranged in an array inside the shunt pipe. The shunt channels are connected to the annular filter chamber and are used to shunt and transmit the incoming liquid to the inside of the annular filter chamber. Due to the provision of multiple groups of shunt channels, even if there is an unexpected blockage on one side, it will not cause the load of the equipment to double, and the sewage can be continuously transported and separated. Compared with the provision of a multi-layer filtering mechanism, once a single-layer accumulation blockage occurs, the operating load of the equipment is sharply increased, which is easy to cause damage to the equipment during operation;

[0010] A docking ring is installed at the bottom of the shunt pipe, and the bottom of the inner wall of the liquid inlet pipe is arranged in a conical shape. The docking ring is used to be clamped at the bottom of the inner wall of the liquid inlet pipe.

[0011] Preferably, a plurality of adsorption shafts are provided between the diverter tube and the sealing tube, and the plurality of adsorption shafts have elastic bottoms with fixing rings provided thereon, and the fixing rings are provided at the bottom of the annular filter chamber;

[0012] A transmission assembly is installed on the clamping ring, and the transmission assembly consists of an air pressure ball and a wave shaft. The adsorption shaft is connected to the bottom of the air pressure ball, and the toggle shaft can drive the air pressure ball to deform under the action of external force, so that the adsorption shaft can move inside the annular filter cavity, which can effectively improve the capture efficiency of fine suspended matter.

[0013] Preferably, a plurality of squeezing plates are installed on the adsorption shaft, and the adsorption shaft is sleeved with a recovery ring arranged in an alternating manner with the squeezing plates. The recovery ring is a water purification filter material. Through a swing mechanism linked by an elastic adsorption shaft and a transmission component, fixed-frequency vibration adsorption can be achieved during normal operation, which can improve the capture efficiency of fine suspended matter. With the mechanical self-cleaning design of the squeezing plates and the recovery ring, the dirt residue on the surface of the transmission sieve plate can be reduced, and the cleaning cycle can be extended compared with the traditional fixed filter screen.

[0014] Preferably, a limiting ring is provided at the top of the sealed transmission component. The limiting ring is clamped on the top of the liquid inlet pipe, and the bottom of the sealed transmission component abuts against the top end of the filtering mechanism;

[0015] A reset frame is provided at the bottom of the sealed transmission component. The reset frame is rotatably arranged at the bottom of the bottom piston shaft. The reset frame is composed of a set of positioning rings and a plurality of reset pressing plates. A clamping ring is provided at the bottom of the transmission pipe, and the clamping ring abuts against the bottom of the reset frame to control the position of the transmission pipe. The moving position of the reset frame corresponds to the clamping ring.

[0016] Preferably, a blocking plate is installed at the top of the transmission pipe, a filtering plate is installed at the bottom of the transmission pipe, the bottom of the transmission pipe is movably arranged inside the shunt pipe, and a plurality of liquid discharge holes are opened on the side wall of the transmission pipe, which can transmit sewage.

[0017] Preferably, a plurality of transmission shafts are connected to the side wall of the transmission pipe. A return pipe is clamped inside the transmission shaft. The return pipe is elastic and a sealing plug rod perpendicular to itself is provided at the top. A plurality of transmission cavities are opened inside the top piston shaft, and the sealing plug rod is movably arranged inside the transmission cavity;

[0018] An arc-shaped grid cover is provided at the top of the return pipe, and a hollow hinge ball is provided at the bottom of the return pipe. A plurality of hinge grooves and a conveying channel communicating with them are opened on the bottom piston shaft. The return pipe can discharge the accumulated liquid inside the transfer cavity along the conveying channel after the reciprocating pump stops operating, which can reduce the corrosion rate and extend the service life of the equipment under intermittent operating conditions.

[0019] Preferably, a piston rod with adjustable stroke is provided inside the stroke cavity, which is suitable for industrial scenarios that require precise flow control.

[0020] Preferably, a sponge sandwich filter plate is clamped at the bottom of the liquid inlet pipe for rough screening of liquid, which can improve the interception rate of large particles.

[0021] Compared with the prior art, the beneficial effects of the present invention are:

[0022] 1. Through the combined structure of the annular filter cavity and the L-shaped multi-component flow channel, the present invention realizes multi-path liquid shunt filtration, increases the effective filtration area, reduces the system pressure loss compared with the traditional multi-layer filter screen structure, reduces the pump body load under the same flow rate, and the transmission sieve plate cooperates with the annular cavity to ensure the filtration accuracy and avoid the problem of easy blockage of the traditional fine filter layer;

[0023] 2. Through the swinging mechanism in which the elastic adsorption shaft is linked with the transmission component, the present invention can achieve fixed-frequency vibration adsorption during normal operation, improve the capture efficiency of fine suspended matter, cooperate with the mechanical self-cleaning design of the extrusion plate and the recovery ring, reduce the dirt residue on the surface of the transmission sieve plate, and extend the cleaning cycle compared with the traditional fixed filter screen;

[0024] 3. Through the synergistic effect of the elastic sealing plug and the conveying channel in the return pipe system, the present invention can automatically discharge the residual liquid in the transfer cavity within seconds after shutdown, reduce the corrosion rate, and extend the service life of the equipment under intermittent operating conditions;

[0025] 4. Through the shunt design of multi-channel parallel connection, when a single channel is blocked, the system can still maintain a sufficient rated flow rate, reduce the impact of blockage on the equipment, and improve the interception rate of large particles. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0027] Figure 2 is a schematic diagram of the split structure of the pump body of the present invention;

[0028] Figure 3 is an exploded split schematic diagram of the transfer cavity structure of the present invention;

[0029] Figure 4 is an exploded split schematic diagram of the inlet pipe structure of the present invention;

[0030] Figure 5 is the present invention Figure 4 partial enlarged schematic diagram at A in;

[0031] Figure 6 is a schematic diagram of the structure of the sealed transmission component of the present invention;

[0032] Figure 7 is a schematic diagram of the internal structure of the filtration mechanism of the present invention;

[0033] Figure 8 is a sectional view schematic diagram of the filtration mechanism and the sealed transmission component of the present invention;

[0034] Figure 9 is the present invention Figure 8 partial enlarged schematic diagram at B in;

[0035] In the figure: 1, fixed pump body; 2, transfer chamber; 3, filtering mechanism; 4, sealed transmission assembly; 11, stroke chamber; 21, drain pipe; 22, liquid inlet pipe; 23, limit ring; 31, shunt pipe; 311, sealed pipe; 32, clamping ring; 321, transmission assembly; 33, shunt channel; 34, fixed ring; 35, adsorption shaft; 36, transmission sieve plate; 37, docking ring; 41, transmission pipe; 411, piston shaft; 42, return pipe; 421, transmission shaft; 43, sealed plug; 44, reset frame; 45, filter plate; 46, conveying channel. Specific implementation mode

[0036] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0037] Please refer to Figures 1-9 , the present invention provides a technical solution: a flow-regulating plunger reciprocating pump, including,

[0038] A fixed pump body 1, one end of which is provided with a stroke chamber 11, one end of the stroke chamber 11 is installed with a transfer chamber 2, a set of transmission holes respectively inserted with a drain pipe 21 and a liquid inlet pipe 22 are opened on the transfer chamber 2, and a one-way transmission valve is arranged inside the drain pipe 21;

[0039] Among them, a filtering mechanism 3 and a sealed transmission component 4 are arranged inside the liquid inlet pipe 22. The filtering mechanism 3 consists of a shunt pipe 31, a sealed pipe 311 and a clamping ring 32. An annular filtering cavity is formed between the shunt pipe 31 and the sealed pipe 311. Multiple groups of transmission sieve plates 36 are arranged on the inner wall of the shunt pipe 31. The clamping ring 32 is clamped at the top of the annular filtering cavity. When liquid enters the shunt pipe 31, it can pass through the annular filtering cavity and be conveyed to the bottom of the filtering mechanism 3 along the transmission sieve plates 36. The sealed transmission component 4 consists of a pair of piston shafts 411. A transmission pipe 41 driven by negative pressure is inserted inside the pair of piston shafts 411. The transmission pipe 41 is used to convey the liquid to the inside of the transfer cavity 2. During the operation of the reciprocating pump, the piston rod can operate inside the stroke cavity 11, the conveyed liquid can enter the transfer cavity 2 along the liquid inlet pipe 22, and can be discharged along the liquid discharge pipe 21. When entering the liquid inlet pipe 22, as the piston rod reciprocates and controls the air pressure change inside the transfer cavity 2, it can cooperate with the sealed transmission component 4 to convey the liquid, and the filtering mechanism 3 can discharge the excess impurities in the liquid, etc., reducing the blockage of the sewage suction impurities after entering the transfer cavity 2. Moreover, with the help of the shunt pipe 31, the sewage can be shunt-transported, and the annular filtering cavity is used to filter the sewage. By increasing the filtering area, the filtering effect is enhanced. Compared with setting multiple layers of fine filtering layers, the load on the operation of the reciprocating pump can be reduced.

[0040] As Figure 8 shown, in order to ensure the filtering efficiency of the equipment, multiple groups of shunt channels 33 are opened inside the shunt pipe 31. The shunt channels 33 are in an "L" shape and are evenly arranged in an array inside the shunt pipe 31. The shunt channels 33 communicate with the annular filtering cavity and are used to shunt and convey the entering liquid to the inside of the annular filtering cavity. Due to the setting of multiple groups of shunt channels 33, even if an accident of blockage occurs on one side, it will not cause a multiple increase in the load of the equipment, and the sewage can still be continuously transported and separated. Compared with setting multiple layers of filtering mechanisms, once a single-layer accumulation and blockage occurs, it will also sharply increase the operating load of the equipment, easily causing damage to the equipment during operation;

[0041] A docking ring 37 is installed at the bottom of the shunt pipe 31. The bottom inner wall of the liquid inlet pipe 22 is tapered and closed. The docking ring 37 is used to be clamped at the bottom inner wall of the liquid inlet pipe 22. The filtering mechanism 3 is clamped at the bottom of the liquid inlet pipe 22, and can filter and process the sewage.

[0042] As Figure 9 shown, in order to reduce the residual fine impurities in the sewage, multiple groups of adsorption shafts 35 are arranged between the shunt pipe 31 and the sealed pipe 311. The multiple groups of adsorption shafts 35 have elastic bottoms and are clamped with fixing rings 34. The fixing rings 34 are arranged at the bottom of the annular filtering cavity;

[0043] A transmission assembly 321 is installed on the clamping ring 32. The transmission assembly 321 consists of a pneumatic ball and a wave shaft. The adsorption shaft 35 is connected to the bottom of the pneumatic ball, and the toggle shaft can drive the pneumatic ball to deform under the action of external force, so as to enable the adsorption shaft 35 to move inside the annular filter chamber. With the action of the transmission assembly 321 and the reset frame 44 during the transmission process, the toggle shaft and the pneumatic ball can drive the adsorption shaft 35 to move under the action of external force, so that it can swing in the sewage, and further adsorb the fine impurities suspended in the sewage.

[0044] like Figure 9 As shown, in order to reduce the possibility of blockage inside the equipment during long-term operation, a plurality of bent extrusion plates are installed on the adsorption shaft 35, and a recovery ring is sleeved on the adsorption shaft 35 and staggered with the extrusion plates, and the recovery ring is a water purification filter material. As the adsorption shaft 35 swings, the extrusion plates and the transmission sieve plate 36 can be squeezed to assist in cleaning the surface, thereby reducing the possibility of blockage of the transmission sieve plate 36 caused by long-term operation and enabling the equipment to operate continuously.

[0045] like Figure 6 As shown, in order to ensure the stability of the equipment operation, a limiting ring 23 is provided on the top of the sealing transmission component 4, and the limiting ring 23 is clamped on the top of the liquid inlet pipe 22, and the bottom of the sealing transmission component 4 is against the top of the filtering mechanism 3;

[0046] A reset frame 44 is provided at the bottom of the sealing transmission component 4, and the reset frame 44 is rotatably set at the bottom of the bottom piston shaft 411. The reset frame 44 is composed of a group of positioning rings and multiple reset pressure plates. A clamping ring is provided at the bottom of the transmission tube 41, and the clamping ring is against the bottom of the reset frame 44 to control the position of the transmission tube 41. The movable position of the reset frame 44 corresponds to the clamping ring 32. Under the action of negative pressure, the transmission tube 41 can be moved and the transmission tube 41 can run upward, so that the drainage hole is transmitted to the inside of the transfer chamber 2, and under the action of boost, the transmission tube 41 can move downward, and the sewage inside the transfer chamber 2 can be transmitted along the one-way valve, so that the sewage is discharged along the drainage pipe 21.

[0047] like Figure 5 As shown, a blocking plate is installed on the top of the transmission pipe 41, and a filter plate 45 is installed at the bottom of the transmission pipe 41. The bottom of the transmission pipe 41 is movably arranged inside the diversion pipe 31. A plurality of drainage holes are opened on the side wall of the transmission pipe 41. The filter plate 45 can be used to filter sewage and reduce the accumulation of dirt and blockage inside the transmission pipe 41.

[0048] like Figure 5 and Figure 6As shown in the figure, in order to reduce the corrosion caused by liquid accumulation inside the device, a plurality of transmission shafts 421 are connected to the side wall of the transmission pipe 41. A return pipe 42 is clamped inside the transmission shaft 421. The return pipe 42 is elastic and a sealing plug rod 43 perpendicular to itself is provided at the top. A plurality of transmission cavities are formed inside the top piston shaft 411, and the sealing plug rod 43 is movably arranged inside the transmission cavity;

[0049] An arc-shaped grid cover is provided at the top of the return pipe 42, and a hollow hinge ball is provided at the bottom of the return pipe 42. A plurality of hinge grooves and a through conveying channel 46 are formed on the bottom piston shaft 411. After the reciprocating pump stops operating, the return pipe 42 can discharge the liquid inside the transfer cavity 2 along the conveying channel 46. When the transmission pipe 41 returns to its original position, the excess liquid inside the transfer cavity 2 will be introduced along the return pipe 42 after the pressure increase or negative pressure disappears. At this time, the return pipe 42 can be calibrated with the conveying channel 46 to enable the excess liquid to flow back. Compared with the traditional one-way valve setting, it can play the role of draining liquid and reduce the corrosion of internal parts caused by sewage and the like.

[0050] As Figure 2 shown, a piston rod with adjustable stroke is provided inside the stroke cavity 11, which can adjust the liquid transmission volume.

[0051] As Figure 4 shown, a sponge sandwich filter plate is clamped at the bottom of the liquid inlet pipe 22 for rough screening of the liquid to reduce large particle impurities remaining in the sewage.

[0052] Working principle: First, during the operation of the reciprocating pump, the piston rod can operate inside the stroke cavity 11, and the transmitted liquid can enter the transfer cavity 2 along the liquid inlet pipe 22 and be discharged along the liquid discharge pipe 21. When entering the liquid inlet pipe 22, as the piston rod reciprocates and controls the air pressure change inside the transfer cavity 2, it can cooperate with the sealed transmission assembly 4 to transmit the liquid. And the filtering mechanism 3 can discharge the excess impurities in the liquid, reducing the blockage of the sewage suction impurities after they enter the transfer cavity 2. With the help of the shunt pipe 31, the sewage can be shunt-transmitted, and the sewage can be filtered in cooperation with the annular filtering cavity. By increasing the filtering area, the filtering effect can be enhanced. Compared with setting multiple fine filtering layers, it can reduce the load on the operation of the reciprocating pump. When the sewage is introduced along the liquid inlet pipe 22, large particle dirt and the like can be adsorbed and blocked under the action of the sponge sandwich, playing the role of rough screening. And as the water flow enters the annular filtering cavity along the shunt channel 33, under the action of the recovery ring on the surface of the adsorption shaft 35, the fine impurities suspended in the sewage can be adsorbed and treated, and the transmission sieve plate 36 can also further filter the sewage. When the sewage is transmitted along the transmission pipe 41 under negative pressure, the impurities remaining in the liquid can be effectively reduced;

[0053] Then, under the action of negative pressure, the transmission pipe 41 can be driven to move upward, so that the sewage can enter the transfer chamber 2 along the drainage hole, and the upward movement of the transmission pipe 41 can cause the reset frame 44 to rotate and compress. The reset frame 44 can move the transmission component 321 during the transmission process, and the adsorption shaft 35 at the bottom is pulled to move under the action of the air pressure ball, so that the adsorption shaft 35 can move inside the annular filter chamber, and the extrusion plate bent on its surface can squeeze the transmission sieve plate 36, which can reduce the accumulation of fine impurities on the transmission sieve plate 36 when the equipment is in continuous operation, so that it can move in the water flow and be adsorbed on the recovery ring;

[0054] Finally, after the equipment is shut down, the transmission tube 41 can return to its original position under the action of the reset frame 44, instead of being offset upward or downward under the action of negative pressure or boost. When the transmission tube 41 returns to its original position, the excess liquid inside the transfer chamber 2 will be introduced along the reflux pipe 42 after the boost or negative pressure disappears, and at this time the reflux pipe 42 can be calibrated with the delivery channel 46, so that the excess liquid can flow back. Compared with the traditional one-way valve setting, it can play the role of draining liquid and reducing the corrosion of internal parts caused by sewage.

[0055] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A flow regulating reciprocating piston pump, characterized in that: include, A fixed pump body (1) is provided with a stroke chamber (11) at one end, a transfer chamber (2) is installed at one end of the stroke chamber (11), a group of transfer holes are opened on the transfer chamber (2) into which a discharge pipe (21) and a liquid inlet pipe (22) are respectively inserted, and a one-way transfer valve is provided inside the discharge pipe (21); The liquid inlet pipe (22) is provided with a filter mechanism (3) and a sealing transmission assembly (4) inside. The filter mechanism (3) comprises a shunt pipe (31), a sealing pipe (311) and a clamping ring (32). An annular filter chamber is formed between the shunt pipe (31) and the sealing pipe (311). The inner wall of the shunt pipe (31) is provided with a plurality of transmission sieve plates (36). The clamping ring (32) is clamped on the top of the annular filter chamber. Liquid entering the shunt pipe (31) can pass through the annular filter chamber and be transported to the bottom of the filter mechanism (3) along the transmission sieve plates (36). The sealing transmission assembly (4) comprises a pair of piston shafts (411). Negative pressure-driven transmission pipes (41) are inserted inside the pair of piston shafts (411). The transmission pipes (41) are used to transport liquid to the inside of the transfer chamber (2).

2. The flow regulating reciprocating piston pump according to claim 1, characterized in that: The diverter tube (31) has a plurality of diverter channels (33) formed inside. The diverter channels (33) are in an "L" shape and are arranged in an even array inside the diverter tube (31). The diverter channels (33) are connected to the annular filter chamber and are used to divert and transmit the incoming liquid to the inside of the annular filter chamber. A docking ring (37) is installed at the bottom of the flow distribution pipe (31), the bottom of the inner wall of the liquid inlet pipe (22) is arranged to be tapered, and the docking ring (37) is used to be clamped on the bottom of the inner wall of the liquid inlet pipe (22).

3. The flow regulating reciprocating piston pump according to claim 1, characterized in that: A plurality of adsorption shafts (35) are arranged between the diverter pipe (31) and the sealing pipe (311), and the plurality of adsorption shafts (35) have elastic bottoms and are provided with fixing rings (34), and the fixing rings (34) are arranged at the bottom of the annular filter chamber; A transmission assembly (321) is mounted on the clamping ring (32), the transmission assembly (321) consisting of a gas pressure ball and a wave shaft, the adsorption shaft (35) is connected to the bottom of the gas pressure ball, and the toggle shaft can drive the gas pressure ball to deform under the action of an external force, so as to enable the adsorption shaft (35) to move inside the annular filter chamber.

4. The flow regulating reciprocating piston pump according to claim 3, characterized in that: A plurality of bent extrusion plates are mounted on the adsorption shaft (35), and recovery rings staggered with the extrusion plates are sleeved on the adsorption shaft (35), wherein the recovery rings are water purification filter materials.

5. The flow regulating reciprocating piston pump according to claim 1, characterized in that: A limiting ring (23) is provided at the top of the sealing transmission component (4), the limiting ring (23) is clamped on the top of the liquid inlet pipe (22), and the bottom of the sealing transmission component (4) abuts against the top of the filtering mechanism (3); A reset frame (44) is provided at the bottom of the sealing transmission component (4), and the reset frame (44) is rotatably arranged at the bottom of the bottom piston shaft (411). The reset frame (44) is composed of a group of positioning rings and a plurality of reset pressure plates. A clamping ring is provided at the bottom of the transmission tube (41), and the clamping ring abuts against the bottom of the reset frame (44) to control the position of the transmission tube (41). The movable position of the reset frame (44) corresponds to the clamping ring (32).

6. The flow regulating reciprocating piston pump according to claim 1, characterized in that: A blocking plate is installed on the top of the transmission tube (41), a filter plate (45) is installed on the bottom of the transmission tube (41), the bottom of the transmission tube (41) is movably arranged inside the diverter tube (31), and a plurality of drainage holes are opened on the side wall of the transmission tube (41).

7. The flow regulating reciprocating piston pump according to claim 1, characterized in that: A plurality of transmission shafts (421) are connected to the side wall of the transmission tube (41), a return tube (42) is arranged inside the transmission shaft (421), the return tube (42) is elastic and has a sealing plug rod (43) arranged vertically on the top of the return tube (42), a plurality of transmission chambers are opened inside the piston shaft (411) at the top, and the sealing plug rod (43) is movably arranged inside the transmission chamber; The top of the reflux pipe (42) is provided with an arc-shaped mesh cover, the bottom of the reflux pipe (42) is provided with a hollow hinge ball, and the piston shaft (411) at the bottom is provided with a plurality of hinge grooves and a conveying channel (46) communicating therewith. The reflux pipe (42) can discharge the accumulated liquid in the transfer chamber (2) along the conveying channel (46) after the reciprocating pump stops operating.

8. The flow regulating reciprocating piston pump according to claim 1, characterized in that: A piston rod with adjustable stroke is arranged inside the stroke chamber (11).

9. The flow regulating reciprocating piston pump according to claim 1, characterized in that: A sponge sandwich filter plate is provided at the bottom of the liquid inlet pipe (22) for coarse screening of liquid.

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