A pump for preventing silt accumulation

Abstract

The present application discloses a kind of mud and sand accumulation prevention blocking pump, including integrated pump, filter component and flushing component, form a retention separation zone in the bottom of integrated pump, when the sand-containing collection water that is sent into integrated pump in the collection input pipe position enters integrated pump, under the guidance of vertical flow guide cover, enter retention separation zone, then under the action of filter component, large particle sand that affects the pump of output pumping pipe is retained and separated, to avoid blocking pump, then through flushing component, when draining water outside output pumping pipe, the accumulated sand on the upper surface of separation mounting plate and the bottom of retention separation zone is flushed, the mixed slurry water is normally discharged through output pumping pipe, to avoid the blockage of flushing port during, further filtration can be carried out through metal filter ball, at the same time rotating metal filter ball and stirring pipe, the use stability of metal filter ball can be improved, the efficiency and quality of sand flushing can be improved.

Description

Technical Field

[0001] This invention relates to the field of water utilization equipment technology, specifically to a pump that prevents siltation and blockage. Background Technology

[0002] An integrated pumping station is a type of integrated pump system that combines pumps, pipes, control systems, and cylinders into modular components to achieve functions such as rainwater collection. Its core advantages are small footprint, easy installation, and high degree of automation, and it is widely used in various fields.

[0003] The invention disclosed in publication number CN119571912B is an integrated prefabricated pump station automatic cleaning and flushing device. By adding fan blades and a cleaning grid to an existing submersible pump, it achieves thorough mixing and dispersion of the water flow at the bottom of the inlet cavity, effectively breaking up impurities and reducing the rate of sludge and impurity deposition. A bottom crossbeam suspends the submersible pump, preventing inlet blockage. Combined with a reverse-flow cleaning pipe, it effectively cleans the interior. During water intake, the fan blades rotate, extend laterally, and spray water, thoroughly cleaning the inner wall of the inlet cavity and effectively dispersing the sludge deposited at the bottom. While the above solution can effectively disperse the muddy water entering the cylinder, the relatively large aperture of the inlet grille of the integrated pump means that when the water contains large particles of hard mud, these particles will fall around the cylinder due to the inertia of the water flow. When these large particles of hard sand are pumped out with the mixed water flow, they can easily damage the submersible pump. Furthermore, existing backwash water is mostly supplied through a branch pipe with a valve on the main pipeline. As the main pipeline is pressurized, a portion of the water is diverted to flush the bottom of the cylinder at high speed. This can easily cause the muddy water to become clogged at the flushing port when it passes through the smaller branch pipe, resulting in poor flushing efficiency. Summary of the Invention

[0004] The purpose of this invention is to provide a pump that prevents siltation and blockage, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a pump for preventing mud and sand accumulation and blockage, comprising:

[0006] An integrated pump is connected to a collection input pipe. A filter grid box is provided inside the integrated pump on the side near the collection input pipe. A partition mounting plate is installed at the lower end of the integrated pump by several bolts. A retention partition area is sandwiched between the partition mounting plate and the bottom of the integrated pump. A vertical flow guide is provided at the upper end of the partition mounting plate connected to the retention partition area. The upper side of the vertical flow guide surrounds the filter grid box.

[0007] A filtration assembly is mounted on a partition mounting plate and includes two first filter plates and several second filter plates.

[0008] The flushing assembly includes a control base, a connecting cover, a connecting rod, a metal filter ball, and several agitator tubes. Two output pumping pipes are symmetrically arranged at the upper end of the partition mounting plate. A side branch pipe is connected to one side of the upper end of the two output pumping pipes, and the side branch pipe is connected to the connecting cover and the connecting rod.

[0009] Preferably, two first filter holes are opened through both sides of the partition mounting plate, and two first filter plates are horizontally inserted into the two first filter holes respectively. A raised ring is provided on the upper end of the outer periphery of the partition mounting plate. The lower end of the raised ring is connected to the retention partition area and has a number of vertical grooves. A number of second filter holes are opened through the inner side of the raised ring in the number of vertical grooves. A second filter plate is inserted into the number of second filter holes, and the lower end of the second filter hole is flush with the upper end of the partition mounting plate.

[0010] Preferably, the control base is located at the center of the partition mounting plate, the connecting cover is fixed to the upper end of the control base by bolts, the connecting rod is inserted through the center of the control base by a sealed bearing, the upper end of the connecting rod is inserted into the connecting cover and is provided with a throwing plate, and the upper end of the throwing plate is provided with centrifugal blades.

[0011] Preferably, the upper ends of the two output pumping pipes are connected to the integrated pump, and the two side branch pipes are connected to the output pumping pipes with a check valve at one end. The lower end of the side branch pipes is connected to the center of the upper end of the connecting cover. The lower end of the outer periphery of the connecting cover is provided with several surface flushing holes, and the lower end of the surface flushing holes is flush with the upper end of the partition mounting plate.

[0012] Preferably, the center of the connecting rod has a through groove extending through the throwing disc, the metal filter ball is placed inside the connecting cover, the lower end of the metal filter ball is connected to a plug pipe, the lower end of the plug pipe is inserted into the through groove of the throwing disc and fixed by bolts.

[0013] Preferably, the diameter of the metal filter ball is smaller than the diameter of the discharge disc, and an arc-shaped brush plate is provided on the side of the connecting cover near the metal filter ball. The arc-shaped brush plate has several bristles on the side near the metal filter ball, and the bristles are in contact with the outer side of the metal filter ball.

[0014] Preferably, the control base has a first cavity and a second cavity on one side of the connecting rod, the connecting rod has a toggle gear on the side of the connecting rod in the first cavity, and the connecting rod has a plurality of through holes on the outer peripheral side of the connecting rod in the second cavity, which is connected to the connecting groove.

[0015] Preferably, the partition mounting plate has a first diversion groove around the first filter plate, and each of the two first diversion grooves has a transition groove connected to a second cavity on one side. The partition mounting plate is connected to a plurality of filter plate backflush heads at the upper end of the first diversion groove. The partition mounting plate is located above the first filter plate and is equipped with a backflush baffle by bolts. The plurality of filter plate backflush heads are inclined and point towards the inner wall of the backflush baffle, and the center of the filter plate backflush head is provided with a downward arc-shaped bending and closing opening.

[0016] Preferably, the lower end of the connecting rod through the control base is provided with a diversion box, and a second diversion groove is opened in the diversion box through the connecting groove. Several agitator tubes are horizontally and symmetrically arranged on the diversion box, and the several agitator tubes are all connected to the second diversion groove. Several flushing holes are opened in the agitator tubes at an angle downward.

[0017] Preferably, the two output pumping pipes are staggered with the two first filter plates, the vertical flow guide is staggered with the output pumping pipes and the first filter plates, and the partition mounting plate is located below the output pumping pipes and abuts against the bottom of the integrated pump with auxiliary support rods.

[0018] Compared with the prior art, the beneficial effects of the present invention are:

[0019] A partition plate is suspended at the bottom of the integrated pump, forming a retention partition zone. When the silt-laden collected water is introduced into the integrated pump through the collection input pipe, it enters the retention partition zone under the guidance of the vertical guide shroud. Then, under the action of the filter assembly, large particles of silt that affect the pump output pipe are retained and separated to prevent pump blockage. Then, through the flushing assembly, when the water is drained outside the output pump pipe, the accumulated silt on the upper surface of the partition plate and the bottom of the retention partition zone is flushed. The agitated and mixed slurry water is discharged normally through the output pump pipe. During this process, to avoid clogging of the flushing port, further filtration can be carried out through metal filter balls. At the same time, rotating the metal filter balls and the agitator can improve the stability of the metal filter balls and the efficiency and quality of silt flushing. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the external structure of the present invention;

[0021] Figure 2 This is a schematic diagram of the internal structural layout of the present invention;

[0022] Figure 3 This is a schematic diagram of a partial side-cut structure of the present invention;

[0023] Figure 4 For the present invention Figure 3 Schematic diagram of part A;

[0024] Figure 5 For the present invention Figure 4 Schematic diagram of part B;

[0025] Figure 6 For the present invention Figure 3 Schematic diagram of part C;

[0026] Figure 7 For the present invention Figure 6 Schematic diagram of part D;

[0027] Figure 8 For the present invention Figure 7 Schematic diagram of part E;

[0028] Figure 9 For the present invention Figure 7 Schematic diagram of part F;

[0029] Figure 10 This is a schematic diagram of the bottom structure of the partition mounting plate of the present invention;

[0030] Figure 11 This is a schematic diagram of the installation of the metal filter ball of the present invention;

[0031] Figure 12 For the present invention Figure 11 Schematic diagram of part G.

[0032] In the diagram: 1. Integrated pump; 2. Collection input pipe; 3. Filter grid box; 4. Separating mounting plate; 5. Vertical guide hood; 6. Retention separation area; 7. First filter hole; 8. First filter plate; 9. Backflush shroud; 10. Control seat; 11. Connecting cover; 12. Connecting rod; 13. Throwing plate; 14. First cavity; 15. Actuating gear; 16. Second cavity; 17. Connecting groove; 18. Central through hole; 19. First diversion groove; 20. Filter plate backflush head; 21. Vertical groove; 22. Second filter hole; 23. Second filter plate; 24. Diversion box; 25. Stirring pipe; 26. Flushing hole; 27. Second diversion groove; 28. Metal filter ball; 29. ​​Insertion pipe; 30. Arc-shaped brush plate; 31. Auxiliary support rod; 32. Surface flushing hole; 33. Side branch pipe; 34. Output pumping pipe; 35. Detailed Implementation

[0033] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0034] Please see the appendix Figure 1-12 This application provides the following technical solutions.

[0035] Example 1: A pump for preventing siltation and blockage includes an integrated pump 1, which is connected to a collection input pipe 2. A filter screen box 3 is provided inside the integrated pump 1 near the collection input pipe 2. A partition mounting plate 4 is installed at the lower end of the integrated pump 1 by several bolts. A retention partition area 6 is sandwiched between the partition mounting plate 4 and the bottom of the integrated pump 1. A vertical flow guide hood 5 is vertically installed at the upper end of the partition mounting plate 4 and connected to the retention partition area 6. The upper side of the vertical flow guide hood 5 surrounds the filter screen box 3. During normal use, the collection input pipe 2 sends pre-filtered collected water into the integrated pump 1. When the collected water enters the integrated pump 1 through the collection input pipe 2, it undergoes further separation of large-sized pollutants through the filter screen box 3. The separated water containing silt particles flows downward under the guidance of the vertical flow guide hood 5. At this time, the silt and water enter the retention partition area 6.

[0036] A filtration assembly is installed on the partition mounting plate 4 to intercept large particles of silt. The filtration assembly includes two first filter plates 8 and several second filter plates 24. Two first filter holes 7 are opened through both sides of the partition mounting plate 4. The two first filter plates 8 are horizontally inserted into the two first filter holes 7 respectively. The upper part of the outer periphery of the partition mounting plate 4 is provided with a raised ring. The lower end of the raised ring is connected to the retention partition area 6 and several vertical grooves 22 are opened. Several second filter holes 23 are opened through the inner side of the raised ring in the several vertical grooves 22. Second filter plates 24 are inserted into the several second filter holes 23, and the lower end of the second filter holes 23 is flush with the upper end of the partition mounting plate 4. The collected water in the retention partition area 6 below the partition mounting plate 4 is guided by the vertical guide hood 5. Under the action of water flow, it flows from bottom to top from the position of the first filter plate 8 of the partition mounting plate 4. During the flow, large particles of silt that may affect the subsequent submersible pump are directly separated, while fine particles of mixed water and silt can pass through normally.

[0037] Since the height of the raised ring is higher than the upper surface of the partition mounting plate 4, and the lower end of the second filter hole 23 is flush with the upper end of the partition mounting plate 4, some of the flowing water retained in the partition area 6 will enter the vertical groove 22 under the action of the water flow, and then be discharged after being filtered from the position of the second filter plate 24. The second filter plate 24 can also directly separate large particles of silt that affect the later submersible pump. Then, when the water flowing out of the second filter plate 24 passes through the position of the smaller diameter second filter hole 23, it flows on the upper surface of the partition mounting plate 4. Then, in conjunction with the flowing water from multiple second filter holes 23, multiple water flows collide or collide with the components above the partition mounting plate 4, forming liquid turbulence, which disturbs the sediment above the partition mounting plate 4. This ensures that as long as water enters the collection input pipe 2, the sediment above the partition mounting plate 4 will be disturbed, thus avoiding the problem of long-term siltation and caking that is difficult to clean.

[0038] A flushing assembly is installed to periodically treat the silt and sand at the bottom of the integrated pump 1. The flushing assembly includes a control base 10, a connecting cover 11, a connecting rod 12, a metal filter ball 29, and several agitator tubes 26. Two output pumping pipes 35 are symmetrically arranged on the upper end of the partition mounting plate 4. A side branch pipe 34 is connected to one side of the upper end of the two output pumping pipes 35, and the side branch pipe 34 is connected to the connecting cover 11 and the connecting rod 12. The control base 10 is located at the center of the partition mounting plate 4, and the connecting cover 11 is connected to the connecting rod 12. Bolts are fixed to the upper end of the control base 10. The connecting rod 12 passes through the center of the control base 10 via a sealed bearing. The upper end of the connecting rod 12 is inserted into the connecting cover 11 and is provided with a throwing disc 13. The upper end of the throwing disc 13 is provided with centrifugal blades. The upper ends of the two output pumping pipes 35 pass through the integrated pump 1. Two side branch pipes 34 are connected to the output pumping pipes 35 and are provided with check valves at one end. The lower end of the side branch pipes 34 is connected to the center of the upper end of the connecting cover 11. The outer periphery of the connecting cover 11 is... Several surface flushing holes 33 are provided at the lower end, and the lower end of the surface flushing holes 33 is flush with the upper end of the partition mounting plate 4. When the submersible pump connected to the output pumping pipe 35 discharges high-pressure water, there is high-speed flowing liquid in the output pumping pipe 35. At this time, the stop valve connecting the side branch pipe 34 and the output pumping pipe 35 is opened. The opening time can be customized according to the usage scenario. When the drainage inside and outside the output pumping pipe 35 flows into the side branch pipe 34, it will flow into the connecting cover 11 and then be flushed horizontally and at high pressure from the surface flushing holes 33 on the surface of the partition mounting plate 4, forming a greater stirring force than the turbulence caused by the water flow at the second filter hole 23 position. The mud and sand on the surface of the partition mounting plate 4 are mixed with water and then discharged normally through the output pumping pipe 35. In addition, when the high-speed water flow ejected from the surface flushing holes 33 disturbs the water above the partition mounting plate 4, the disturbed water can impact the vertically set second filter plate 24 from the side, realizing the basic flushing of the second filter plate 24.

[0039] A connecting rod 12 has a connecting groove 17 through which the ejector plate 13 is formed. A metal filter ball 29 is placed inside a connecting cover 11. The lower end of the metal filter ball 29 is connected to a connector 30, which is inserted into the connecting groove 17 of the ejector plate 13 and fixed with bolts. The diameter of the metal filter ball 29 is smaller than the diameter of the ejector plate 13. An arc-shaped brush plate 31 is provided inside the connecting cover 11 near the metal filter ball 29. The arc-shaped brush plate 31 has several bristles on the side near the metal filter ball 29, and the bristles are in contact with the outer side of the metal filter ball 29. A first cavity 14 is formed inside the control base 10 on one side of the connecting rod 12. The second cavity 16, the connecting rod 12 is located in the first cavity 14 and is equipped with a toggle gear 15. When the output pump pipe 35 normally discharges mixed sludge water, some sludge water will flow back from the side branch pipe 34 to the connecting cover 11. At this time, the toggle gear 15 is driven to rotate by the servo waterproof motor and the drive gear. Then the connecting rod 12 and the throwing disc 13 rotate at high speed in the connecting cover 11. At this time, the throwing disc 13 will centrifuge the mud and sand particles and sewage entering the connecting cover 11 at high speed and throw them to the surface flushing hole 33 and discharge them through the surface flushing hole 33. The number of surface flushing holes 33 can be customized according to the requirements.

[0040] A diversion box 25 is provided at the lower end of the control base 10 through the connecting rod 12. A second diversion groove 28 is opened in the diversion box 25 through the connecting groove 17. Several agitator tubes 26 are horizontally and symmetrically arranged on the diversion box 25. The agitator tubes 26 are all connected to the second diversion groove 28, and several flushing holes 27 are opened downward at an angle inside the agitator tubes 26. The two output pump pipes 35 are staggered with the two first filter plates 8. The vertical flow guide shroud 5 is staggered with the output pump pipes 35 and the first filter plates 8. The partition mounting plate 4 is located below the output pump pipes 35 and abuts against the bottom of the integrated pump 1. An auxiliary support rod 32 is provided inside the connecting cover 11 to receive the high-speed water flow sent in by the side branch pipe 34. At that time, the metal filter ball 29 can further refine and filter the mud and sand sent by the side branch pipe 34. The filtered water flows into the connecting groove 17 of the connecting rod 12 through the insertion pipe 30, and then flows to several stirring pipes 26 through the second diversion groove 28 of the diversion box 25. The high-pressure water flow entering the stirring pipe 26 is inclined to the bottom surface of the integrated pump 1 through several flushing holes 27. Then, with the high-speed rotation of the connecting rod 12, the water in the retention separation zone 6 can be vortexed through several stirring pipes 26. Then, accompanied by the flushing water flow, the silt and sand in the retention separation zone 6 are mixed. Then, after passing through the first filter plate 8, it is sucked out by the output pump pipe 35.

[0041] In addition, when the connecting rod 12 controls the high-speed rotation of the ejector plate 13, the metal filter ball 29 is also rotating at high speed. At this time, the bristles of the arc-shaped brush plate 31 can relatively clean the surface of the metal filter ball 29, thereby improving the filtration quality of the metal filter ball 29.

[0042] Example 2: Based on Example 1, the connecting rod 12 has several through holes 18 on its outer periphery connected to the connecting groove 17 within the second cavity 16. A first diversion groove 19 is formed around the first filter plate 8 within the partition mounting plate 4. One side of each of the two first diversion grooves 19 connects to a transition groove 20 in the second cavity 16. Several filter plate backflushing heads 21 are connected to the upper end of the partition mounting plate 4 at the first diversion groove 19. A backflushing baffle 9 is bolted to the partition mounting plate 4 above the first filter plate 8. The filter plate backflushing heads 21 are inclined and point towards the inner wall of the backflushing baffle 9. Furthermore, the center of the filter plate backflush head 21 is provided with a downward arc-shaped converging opening. A portion of the finely filtered collected water in the connecting groove 17 enters the first diversion groove 19 through the transfer groove 20, and then rushes from several filter plate backflush heads 21 to the arc-shaped inner wall of the backflush baffle 9. Under the pressure jet action of several filter plate backflush heads 21, a vortex is formed between the backflush baffle 9 and the first filter plate 8, which backflushs the gaps of the first filter plate 8, improving the filtration quality of the first filter plate 8. The flow rate delivered by the side branch pipe 34 is greater than the sum of the discharge flow rates of the surface flushing hole 33, the flushing hole 27 and the filter plate backflush head 21.

[0043] In addition, large particles of silt filtered out by the first filter plate 8 in the retention and separation zone 6 can be discharged normally through the first filter plate 8 if they break down and become smaller as the water flows for a long time. If they cannot be discharged, they will be manually pumped out or manually cleaned during later major maintenance.

[0044] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A pump for preventing mud and sand accumulation and blockage, characterized in that, include: An integrated pump (1) is connected to a collection input pipe (2). A filter grid box (3) is provided on one side of the integrated pump (1) near the collection input pipe (2). A partition mounting plate (4) is installed at the lower end of the integrated pump (1) by several bolts. A retention partition area (6) is sandwiched between the partition mounting plate (4) and the bottom of the integrated pump (1). A vertical flow guide hood (5) is vertically provided at the upper end of the partition mounting plate (4) connected to the retention partition area (6). The upper side of the vertical flow guide hood (5) surrounds the filter grid box (3). The filter assembly is mounted on the partition mounting plate (4) and includes two first filter plates (8) and several second filter plates (24). The flushing assembly includes a control base (10), a connecting cover (11), a connecting rod (12), a metal filter ball (29), and several agitator tubes (26). Two output pumping pipes (35) are symmetrically provided on the upper end of the partition mounting plate (4). A side branch pipe (34) is connected to one side of the upper end of the two output pumping pipes (35), and the side branch pipe (34) is connected to the connecting cover (11) and the connecting rod (12). The partition mounting plate (4) has two first filter holes (7) through both sides. Two first filter plates (8) are horizontally inserted into the two first filter holes (7). The upper part of the outer periphery of the partition mounting plate (4) is provided with a protruding ring. The lower end of the protruding ring is connected to the retention partition area (6) and a number of vertical grooves (22) are provided. A number of second filter holes (23) are provided through the inner side of the protruding ring in the number of vertical grooves (22). A number of second filter plates (24) are inserted into the number of second filter holes (23), and the lower end of the second filter hole (23) is flush with the upper end of the partition mounting plate (4). The control seat (10) is located at the center of the partition mounting plate (4). The connecting cover (11) is fixed to the upper end of the control seat (10) by bolts. The connecting rod (12) passes through the center of the control seat (10) through a sealed bearing. The upper end of the connecting rod (12) is inserted into the connecting cover (11) and is provided with a throwing plate (13). The upper end of the throwing plate (13) is provided with centrifugal blades. The upper ends of the two output pump pipes (35) are connected through the integrated pump (1), and the two side branches (34) are connected to the output pump pipes (35) with a stop valve at one end. The lower end of the side branch pipe (34) is connected to the upper center of the connecting cover (11). Several surface flushing holes (33) are opened through the lower end of the outer periphery of the connecting cover (11), and the lower end of the surface flushing holes (33) is flush with the upper end of the partition mounting plate (4). The center of the connecting rod (12) passes through the throwing disc (13) and has a connecting groove (17). The metal filter ball (29) is placed inside the connecting cover (11). The lower end of the metal filter ball (29) is connected to the insertion pipe (30). The lower end of the insertion pipe (30) is inserted into the connecting groove (17) of the throwing disc (13) and fixed by bolts. The control base (10) has a first cavity (14) and a second cavity (16) on one side of the connecting rod (12). The connecting rod (12) has a toggle gear (15) on one side of the first cavity (14). The connecting rod (12) has a plurality of through holes (18) on the outer periphery of the connecting groove (17) in the second cavity (16). The partition mounting plate (4) is provided with a first diversion groove (19) around the first filter plate (8). One side of each of the two first diversion grooves (19) is connected to the second cavity (16) and a transition groove (20) is provided. The partition mounting plate (4) is connected to a number of filter plate backflush heads (21) at the upper end of the first diversion groove (19). The partition mounting plate (4) is provided with a backflush baffle (9) above the first filter plate (8) by bolts. The number of filter plate backflush heads (21) are inclined and point towards the inner wall of the backflush baffle (9), and the center of the filter plate backflush head (21) is provided with a downward arc-shaped bending and closing opening.

2. The anti-mud and sand siltation blockage pump according to claim 1, characterized in that: The diameter of the metal filter ball (29) is smaller than the diameter of the discharge plate (13). An arc-shaped brush plate (31) is provided on the side of the connecting cover (11) near the metal filter ball (29). The arc-shaped brush plate (31) is provided with several bristles on the side of the metal filter ball (29), and the bristles are in contact with the outside of the metal filter ball (29).

3. The anti-mud and sand accumulation blockage pump according to claim 2, characterized in that: The connecting rod (12) passes through the lower end of the control base (10) and is provided with a diversion box (25). The diversion box (25) is connected to the connecting groove (17) and a second diversion groove (28) is provided. Several stirring tubes (26) are horizontally and symmetrically arranged on the diversion box (25). Several stirring tubes (26) are connected to the second diversion groove (28) and several flushing holes (27) are inclined downward inside the stirring tubes (26).

4. The anti-mud and sand accumulation blockage pump according to claim 3, characterized in that: The two output pump pipes (35) are offset from the two first filter plates (8), the vertical guide shroud (5) is offset from the output pump pipes (35) and the first filter plates (8), and the partition mounting plate (4) is located below the output pump pipes (35) and abuts against the bottom of the integrated pump (1) with an auxiliary support rod (32).

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