A piston pump that is easy to clean

Abstract

The application discloses an easy-to-clean piston pump and relates to the field of piston pump cleaning, which comprises a piston assembly, the piston assembly comprises a piston head, a cylindrical groove is formed in the piston head, a metal pipe is fixed to the top end of the piston head, a limiting rod is threadedly connected to one side of the metal pipe, a rotating assembly is movably installed in the cylindrical groove, the rotating assembly comprises a metal rod, helical ring grooves are formed in the side surface of the metal rod, two groups of limiting grooves are formed in the side surface of the metal rod, and winding assemblies are movably installed in the limiting grooves. When the piston assembly reciprocates, the fixed limiting rod in the piston assembly pushes the metal rod of the rotating assembly to rotate in the helical ring grooves, so as to drive the winding assemblies, the winding assemblies are actively wound around some hair in water, and the winding assemblies can be conveniently disassembled and cleaned in the later maintenance and cleaning.

Description

Technical Field

[0001] This invention relates to the field of piston pump cleaning, specifically to a piston pump that is easy to clean. Background Technology

[0002] A pump is a mechanical device that transports or pressurizes fluids. It is mainly used to transport water, oil, slurry, acid and alkali solutions, emulsions, suspensions, gas mixtures, and liquid metals. It is a common conveying equipment in industries such as mining, chemical and metallurgy. Pumps mainly include gear pumps, centrifugal pumps, screw pumps, and piston pumps. Piston pumps are divided into single-cylinder, double-cylinder and multi-cylinder types, and are mainly used for water transport and pressurization.

[0003] Piston pumps are typically driven by a motor-driven pulley that rotates a cam mechanism, causing the piston rod inside the piston cylinder to reciprocate. This reciprocating motion of the piston changes the working volume within the pump chamber. Two opposing one-way valves are installed on one side of the pump chamber. When the piston rod moves downward, the volume inside the chamber increases, and the one-way valve at the inlet opens to draw in liquid. When the piston rod moves upward, the volume inside the chamber decreases, and the one-way valve at the outlet opens to discharge liquid. This achieves the purpose of liquid intake and discharge, making it suitable for high-pressure, low-flow applications, demonstrating its high efficiency and good operating performance.

[0004] In common applications, piston pumps used to pump liquids containing impurities, such as municipal sewage and lake water, are equipped with a sludge trap at the inlet of the inlet pipe to reduce the entry of larger impurities into the pump chamber and minimize damage to the pump's internal structure. However, over time, sludge and suspended solids will accumulate inside the pump, requiring manual cleaning by opening the flange cover. Sewage often contains fine hairs that are not intercepted by the sludge trap and can enter the pump chamber, entangled in components such as the check valve and piston head. Cleaning these entangled hairs is difficult. While small amounts of hair may not significantly affect the pump, regular cleaning and maintenance are still necessary. Furthermore, accumulated hair can easily clump together with other impurities, affecting the operation of the piston pump and causing damage and blockages. Summary of the Invention

[0005] Therefore, the purpose of this invention is to provide an easy-to-clean piston pump to solve the technical problems mentioned in the background above.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an easy-to-clean piston pump, comprising a trolley, a piston pump, a motor, and a pulley assembly. The piston pump includes a piston cylinder, a crankshaft, a connecting rod, and a piston assembly. The piston assembly includes a piston head, and a cylindrical groove is formed inside the piston head. A metal tube is fixed to the top of the piston head, and a limit rod is threaded to one side of the metal tube. A rotating assembly is movably installed in the cylindrical groove, and the rotating assembly includes a metal rod. A spiral ring groove is formed on the side of the metal rod, and two sets of limit grooves are formed on the side of the metal rod. A spring limit assembly is provided inside the metal rod, and a winding assembly is movably installed in the limit groove. The winding assembly includes an inner ring, and a limit block matching the limit groove is fixed inside the inner ring. Multiple sets of fixing rods are fixed to the outside of the inner ring, and the ends of the multiple sets of fixing rods are jointly fixed to an outer ring. Multiple sets of winding rods are fixed to the outer wall of the fixing rods.

[0007] By adopting the above technical solution, and by setting up a rotating component and a winding component, when the crankshaft drives the piston assembly to reciprocate through the connecting rod, the fixed limiting rod inside the piston assembly pushes the metal rod of the rotating component in the spiral ring groove, causing the metal rod to rotate. This, in turn, drives the winding component sleeved on the metal rod. The fixed rods and winding rods distributed inside the winding component will actively wind up some hair contained in the water during the rotation process. When long and thin hairs are actively wound around the winding component, it is easy to disassemble the winding component for centralized cleaning during later maintenance.

[0008] The invention is further configured such that a cylinder head assembly is connected to the top flange of the piston cylinder, and the cylinder head assembly includes a cover body, and a plug rod is mounted on the bottom of the cover body via a bearing, wherein a matching groove is formed at the top of the metal rod to match the plug rod.

[0009] By adopting the above technical solution, a cylinder head assembly is connected to the top flange of the piston cylinder, which facilitates the later maintenance and cleaning of the piston cylinder. The bottom bearing of the cover is equipped with a plug rod, so that the matching groove at the top of the metal rod can be connected with the plug rod. Thus, when the metal rod rotates, it can be attracted by the electromagnet inside the plug rod to prevent it from falling off.

[0010] The present invention is further configured such that an electromagnet is installed inside the insertion rod and is energized through a contact ring.

[0011] By adopting the above technical solution, an electromagnet energized by a contact ring is set inside the insertion rod. Under the attraction of the electromagnet, the metal rod can be attracted and suspended by the insertion rod. At the same time, when the electromagnet is not attracted, it is easy to disassemble the winding assembly on the metal rod.

[0012] The present invention is further configured such that the spring limiting component limits the winding component to prevent it from moving up and down.

[0013] By adopting the above technical solution, and by setting a spring limiting component inside the metal rod, the winding component is located below the spring limiting component when it is installed on the limiting groove, which can prevent the winding component from shaking up and down during rotation.

[0014] The present invention is further configured such that a water inlet is provided at the top of the cover and a water outlet is provided at the top of the cover, and a one-way valve is installed in both the water inlet and the water outlet.

[0015] By adopting the above technical solution, and by installing one-way valves inside both the inlet and outlet, the piston pump can achieve pumping and draining inside the piston cylinder during operation.

[0016] The invention is further configured such that the crankshaft is rotatably connected to a connecting rod, and the top end of the connecting rod is rotatably connected to a piston assembly.

[0017] By adopting the above technical solution, a crankshaft is rotatably connected to a connecting rod, and the end of the connecting rod is rotatably connected to a piston assembly. When the crankshaft rotates and drives the connecting rod, it can push the piston assembly to reciprocate.

[0018] The present invention is further configured such that a pulley assembly is provided between the output end of the motor and the crankshaft.

[0019] By adopting the above technical solution, by setting up a motor and setting a pulley assembly between the output end of the motor and the crankshaft, the motor can be used as a power output, and the power can be transmitted to the crankshaft using the pulley assembly, thereby enabling the crankshaft to rotate.

[0020] In summary, the present invention has the following main beneficial effects:

[0021] This invention, by setting up a rotating component and a winding component, allows the crankshaft to drive the piston assembly to reciprocate via the connecting rod. The limiting rod fixed inside the piston assembly pushes the metal rod of the rotating component within the spiral annular groove, causing the metal rod to rotate. This, in turn, drives the winding component fitted on the metal rod. During rotation, the fixed rods and winding rods distributed within the winding component actively wind up hair contained in the water. When long, thin hair actively winds up the winding component, it is easy to disassemble and clean the winding component during later maintenance. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of the present invention;

[0023] Figure 2 This is a cross-sectional view of the piston pump of the present invention;

[0024] Figure 3 This is a schematic diagram of the connection between the connecting rod and piston assembly of the present invention;

[0025] Figure 4 This is a cross-sectional view of the piston assembly of the present invention;

[0026] Figure 5 This is a cross-sectional view of the rotating component of the present invention;

[0027] Figure 6 For the present invention Figure 5 Enlarged view at point A;

[0028] Figure 7 This is a schematic diagram of the cylinder head assembly of the present invention;

[0029] Figure 8 This is a schematic diagram of the winding assembly of the present invention.

[0030] In the diagram: 1. Trolley; 2. Piston pump; 3. Motor; 4. Pulley assembly; 5. Cylinder head assembly; 6. Rotating assembly; 7. Winding assembly; 201. Piston cylinder; 202. Crankshaft; 203. Connecting rod; 204. Piston assembly; 501. Cover; 502. Insert rod; 503. Inlet; 504. Outlet; 601. Metal rod; 602. Spiral ring groove; 603. Fitting groove; 604. Limiting groove; 605. Spring limiting assembly; 701. Inner ring; 702. Fixing rod; 703. Outer ring; 704. Winding rod; 705. Limiting block; 2041. Piston head; 2042. Cylindrical groove; 2043. Metal tube; 2044. Limiting rod. Detailed Implementation

[0031] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0032] The embodiments of the present invention will now be described.

[0033] An easy-to-clean piston pump, such as Figure 1 , Figure 2 , Figure 4 , Figure 5 , Figure 6 and Figure 8As shown, the device includes a trolley 1, a piston pump 2, a motor 3, and a pulley assembly 4. The piston pump 2 and the motor 3 are mounted on the trolley 1 for easier movement of the equipment. The piston pump 2 includes a piston cylinder 201, a crankshaft 202, a connecting rod 203, and a piston assembly 204. The motor 3 and the pulley assembly 4 allow the power of the motor 3 to be transmitted to the crankshaft 202 through the pulley assembly 4. The crankshaft 202 drives the connecting rod 203 to rotate, which in turn drives the piston assembly 204 to reciprocate. The piston assembly 204 includes a piston head 2041, and a cylindrical groove 2042 is provided inside the piston head 2041. A metal tube 2043 is fixed to the top of the piston head 2041, and a limit rod 2044 is threadedly connected to one side of the metal tube 2043.

[0034] A rotating component 6 is movably installed within the cylindrical groove 2042. The cylindrical groove 2042 is formed inside the piston head 2041, allowing the piston assembly 204 to reciprocate and accommodate the rotating component 6. A limiting rod 2044 inside the piston assembly 204 can apply a certain force to the rotating component 6. The rotating component 6 includes a metal rod 601, and a helical annular groove 602 is formed on the side of the metal rod 601. 602, so that when the limiting rod 2044 reciprocates within the spiral groove 602, it can push the metal rod 601 to rotate through the spiral groove 602. Two sets of limiting grooves 604 are provided on the side of the metal rod 601. The limiting grooves 604 can be used to install the winding assembly 7. A spring limiting assembly 605 is provided inside the metal rod 601, and the winding assembly 7 is movably installed within the limiting groove 604. The spring limiting assembly 605 can prevent the winding assembly 7 from moving up and down when it rotates.

[0035] The winding assembly 7 includes an inner ring 701, and a limiting block 705 that matches the limiting groove 604 is fixed inside the inner ring 701. Multiple sets of fixing rods 702 are fixed outside the inner ring 701. The ends of the multiple sets of fixing rods 702 are jointly fixed to an outer ring 703. Multiple sets of winding rods 704 are fixed to the outer wall of the fixing rods 702. By setting the winding assembly 7, the fixing rods 702 and winding rods 704 inside the winding assembly 7 can actively wind some hair when rotating, which is convenient for later maintenance and cleaning.

[0036] Please refer to the figure. Figure 6 and Figure 7The piston cylinder 201 is connected to the top flange of the cylinder head assembly 5, which includes a cover body 501. The bottom of the cover body 501 is fitted with a rod 502 via a bearing. The top of the metal rod 601 has a matching groove 603 that matches the rod 502. By connecting the cylinder head assembly 5 to the top flange of the piston cylinder 201, it is convenient to maintain and clean the piston cylinder 201 later. The bottom bearing of the cover body 501 is fitted with the rod 502, so that the matching groove 603 on the top of the metal rod 601 can connect with the rod 502. Thus, when the metal rod 601 rotates, it can be attracted by the electromagnet inside the rod 502 to prevent it from falling off.

[0037] Please see Figure 7 An electromagnet is installed inside the insertion rod 502 and energized through a contact ring. By setting an electromagnet inside the insertion rod 502 and energizing it through a contact ring, the metal rod 601 can be attracted and suspended by the electromagnet under the attraction of the insertion rod 502. At the same time, when the electromagnet is not attracted, it is easy to remove the winding assembly 7 on the metal rod 601.

[0038] Please see Figure 6 The spring limiting component 605 limits the winding component 7 to prevent it from moving up and down. By setting the spring limiting component 605 inside the metal rod 601, when the winding component 7 is installed on the limiting groove 604, it is located below the spring limiting component 605, which can prevent the winding component 7 from shaking up and down during rotation.

[0039] Please see Figure 2 The top of the cover 501 is provided with a water inlet 503 and a water outlet 504. Both the water inlet 503 and the water outlet 504 are equipped with one-way valves. By installing one-way valves inside the water inlet 503 and the water outlet 504, the piston pump 2 can pump water and drain water inside the piston cylinder 201 when it is working.

[0040] Please see Figure 3 The crankshaft 202 is rotatably connected to the connecting rod 203, and the top end of the connecting rod 203 is rotatably connected to the piston assembly 204. By setting the crankshaft 202 to rotatably connect to the connecting rod 203, and the end of the connecting rod 203 to rotatably connect to the piston assembly 204, when the crankshaft 202 rotates and drives the connecting rod 203, it can push the piston assembly 204 to reciprocate.

[0041] Please see Figure 1 A pulley assembly 4 is provided between the output end of the motor 3 and the crankshaft 202. By providing the motor 3 and the pulley assembly 4 between the output end of the motor 3 and the crankshaft 202, the motor 3 can be used as a power output, and the power can be transmitted to the crankshaft 202 through the pulley assembly 4, so that the crankshaft 202 can also rotate.

[0042] The working principle of this invention is as follows: When using the piston pump 2 for pumping operations, the pipe connected to the inlet 503 of the piston pump 2 is first placed into the liquid to be pumped. The power supply of the motor 3 is then turned on, driving the motor 3 to drive the pulley assembly 4 to drive the crankshaft 202 to rotate. This causes the crankshaft 202 to drive the connecting rod 203 to rotate, while simultaneously pushing the piston assembly 204 to reciprocate up and down. When the piston assembly 204 reciprocates, it drives the internally fixed limiting rod 2044 to reciprocate up and down. As the limiting rod 2044 moves within the spiral annular groove 602, it can push the metal rod 601 to rotate, causing the winding assembly fixed above the metal rod 601 to rotate. As the piston assembly 204 moves downward, the volume inside the pump chamber increases, the one-way valve of the outlet 504 closes, and the one-way valve of the inlet 503 automatically opens to draw in liquid. When the piston assembly 204 moves upward, the volume inside the pump chamber decreases, the one-way valve of the inlet 503 closes, and the one-way valve of the outlet 504 automatically opens to discharge water. The piston assembly 204 reciprocates frequently under the push of the connecting rod 203. The winding assembly 7 can rotate continuously with the metal rod 601, and liquid is drawn in and discharged at the same time. If there are long hairs in the liquid, they will be actively wound by the fixing rod 702 and the winding rod 704 of the winding assembly 7.

[0043] After the piston pump 2 has been working for a period of time, the winding assembly 7 inside the pump chamber needs to be cleaned. At this time, the fine hairs are mainly concentrated on the winding assembly 7. Turn off the motor 3 and the electromagnet installed in the insertion rod 502, so that the insertion rod 502 loses its magnetic attraction to the upper end of the metal rod 601. At this time, loosen the bolts fixing the cover 501 and the piston cylinder 201, remove the cover 501, press the spring limiting assembly 605 with one hand, and take the winding assembly 7 out of the limiting groove 604 on the metal rod 601 with the other hand. Then you can clean the fine hairs on the winding assembly 7. When the cleaning is completed, align the limiting block 705 inside the winding assembly 7 with the limiting groove 604 above the metal rod 601 and press it to fix the winding assembly 7 back to the metal rod 601. The spring limiting assembly 605 can limit the winding assembly 7 to prevent it from moving up and down. Finally, reinstall the piston pump 2 and continue to work.

[0044] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the invention and are not intended to limit it. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and spirit of the invention, but such modifications, substitutions, and variations are protected by patent law as long as they are within the scope of the claims of the present invention.

Claims

1. An easy-to-clean piston pump, comprising a trolley (1), a piston pump (2), a motor (3), and a pulley assembly (4), characterized in that: The piston pump (2) includes a piston cylinder (201), inside which a piston assembly (204) is provided. The piston assembly (204) includes a piston head (2041), and a cylindrical groove (2042) is provided inside the piston head (2041). A metal tube (2043) is fixed to the top of the piston head (2041), and a limit rod (2044) is threadedly connected to one side of the metal tube (2043). A rotating assembly (6) is movably installed in the cylindrical groove (2042), and the rotating assembly (6) includes a metal rod (601). A spiral ring groove (602) is provided on the side of the metal rod (601), and two sets of limit grooves (604) are provided on the side of the metal rod (601). A spring limit assembly (605) is provided inside the metal rod (601), and an inner ring (701) is movably installed in the limit groove (604). Multiple sets of fixing rods (702) are fixed to the outside of the inner ring (701). The outer wall of the fixing rod (702) is fixed with multiple sets of winding rods (704), and the ends of the multiple sets of fixing rods (702) are jointly fixed with an outer ring (703). The inner wall of the inner ring (701) is fixed with a limiting block (705), and the limiting block (705) matches the limiting groove (604). The inner ring (701), fixing rod (702), outer ring (703) and winding rod (704) constitute a winding assembly (7). The spring limiting assembly (6) 05) Limit the winding assembly (7) to prevent it from moving up and down. The top flange of the piston cylinder (201) is connected to the cylinder head assembly (5), and the cylinder head assembly (5) includes a cover body (501). The bottom of the cover body (501) is equipped with a plug rod (502) through a bearing. The top of the metal rod (601) has a matching groove (603) that matches the plug rod (502). An electromagnet is installed inside the plug rod (502) and is energized through a contact ring.

2. The easy-to-clean piston pump according to claim 1, characterized in that: The top of the cover (501) is provided with a water inlet (503) and a water outlet (504), and both the water inlet (503) and the water outlet (504) are equipped with one-way valves.

3. The easy-to-clean piston pump according to claim 1, characterized in that: A crankshaft (202) is mounted inside the piston cylinder (201) via a bearing. The crankshaft (202) is rotatably connected to a connecting rod (203), and the top end of the connecting rod (203) is rotatably connected to the piston assembly (204).

4. The easy-to-clean piston pump according to claim 3, characterized in that: A pulley assembly (4) is provided between the output end of the motor (3) and the crankshaft (202).

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