Bidirectional self-suction fluid booster pump

Abstract

The bidirectional self-suction fluid booster pump comprises a pressure cylinder, the two ends of the pressure cylinder are connected with cylinder barrel bodies, the ends, relatively away from the pressure cylinder, of the cylinder barrel bodies are connected with pressurizing bases, the internal structures of the two pressurizing bases are the same, the pressurizing bases are provided with high-pressure outlets and fluid suction inlets, and first pistons are installed in the cylinder barrel bodies in a sliding mode; a second piston is slidably mounted in the pressure cylinder, a piston rod is connected between the first piston and the second piston, a first fluid inlet and a second fluid inlet which are communicated with the piston cavity are formed in the pressure cylinder, and the second piston can be driven to move left and right in the piston cavity when a fluid power source is injected into the first fluid inlet or the second fluid inlet. One-way valves are arranged in the high-pressure outlet and the fluid suction inlet correspondingly, the conduction directions of the two one-way valves are the same, the flow direction of oil can be adjusted to two directions according to different requirements, the pressure in one direction is increased, and therefore higher working efficiency is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of booster pumps, and in particular to a bidirectional self-priming fluid booster pump. Background Art

[0002] The principle of the booster pump is to use the low air pressure of a large area piston to generate high pressure of a small area piston, thereby pressurizing the fluid. In order to solve the problem of insufficient pressure in the fluid pipeline, we usually connect a booster pump in series to the pipeline to increase the pipeline pressure. However, the booster pumps currently on the market generally have one inlet and one outlet, and cannot achieve two-way pressure boosting, which brings many inconveniences to use. Summary of the invention

[0003] The purpose of the present invention is to overcome the shortcomings and deficiencies of the prior art and to provide a bidirectional self-priming fluid booster pump.

[0004] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a bidirectional self-priming fluid booster pump, comprising a booster cylinder, wherein both ends of the booster cylinder are connected to a cylinder body, an end of the cylinder body relatively far from the booster cylinder is connected to a booster base, the two sets of booster bases have the same internal structure, a high-pressure outlet and a fluid suction port are arranged on the booster base, a first piston is slidably installed in the cylinder body, a second piston is slidably installed in the booster cylinder, the diameter of the first piston is smaller than the diameter of the second piston, a piston rod is connected between the first piston and the second piston, a first fluid inlet and a second fluid inlet connected to the piston cavity are respectively arranged on the booster cylinder, when a fluid power source is injected into the first fluid inlet or the second fluid inlet, the second piston can be driven to move left and right in the piston cavity, a one-way valve is respectively arranged in the high-pressure outlet and the fluid suction port, and the conducting directions of the two one-way valves are the same, and the high-pressure outlet and the fluid suction port are coaxially arranged.

[0005] As a preferred technical solution of the present invention, an intermediate flow channel corresponding to the position of the first piston is arranged in the boosting base, and a first fluid channel and a second fluid channel perpendicular to both sides of the intermediate flow channel are also arranged, and the first fluid channel and the second fluid channel correspond to the high-pressure outlet and the fluid suction port respectively.

[0006] As a preferred technical solution of the present invention, each of the one-way valves includes a compression spring and a steel ball arranged from top to bottom, and valve ports are provided in the first fluid channel and the second fluid channel. The compression spring is limited in the corresponding fluid channel and the steel ball closes the valve port under the action of the compression spring.

[0007] As a preferred technical solution of the present invention, the booster base portion extends into the cylinder body, and an opening is provided at one end of the intermediate flow channel facing the cylinder body.

[0008] As a preferred technical solution of the present invention, a two-position four-way reversing valve connected to the first fluid inlet and the second fluid inlet is further provided.

[0009] As a preferred technical solution of the present invention, a sealing ring is sleeved on the outer periphery of the first piston, and the outer peripheral wall of the sealing ring abuts against the inner peripheral wall of the cylinder body.

[0010] As a preferred technical solution of the present invention, a sealing ring is sleeved on the outer periphery of the second piston, and the outer peripheral wall of the sealing ring abuts against the inner peripheral wall of the cylinder body.

[0011] Compared with the prior art, the beneficial effects of the present invention are: the bidirectional self-priming fluid booster pump can adjust the oil flow in two directions according to different needs, and enhance the pressure in one direction to achieve higher working efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the structure of the present invention; Figure 2 It is a structural schematic diagram of the booster base in the present invention.

[0013] Figure numerals: 1. Booster cylinder; 2. Cylinder body; 3. Booster base; 4. High-pressure outlet; 5. Fluid suction port; 6. First piston; 7. Second piston; 8. Piston rod; 9. First fluid inlet; 10. Second fluid inlet; 11. Piston chamber; 12. One-way valve; 13. Intermediate flow channel; 14. First fluid channel; 15. Second fluid channel; 16. Compression spring; 17. Steel ball; 18. Valve port; 19. Opening; 20. Reversing valve; 21. Sealing ring. DETAILED DESCRIPTION

[0014] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0015] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0016] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0017] like Figure 1 , 2 A bidirectional self-priming fluid booster pump shown in the figure comprises a booster cylinder 1, wherein both ends of the booster cylinder 1 are connected to a cylinder body 2, and one end of the cylinder body 2 which is relatively far from the booster cylinder 1 is connected to a booster base 3, the two groups of booster bases 3 and the two groups of cylinder bodies 2 have the same internal structure, a high-pressure outlet 4 and a fluid suction port 5 are provided on the booster base 3, a first piston 6 is slidably installed in the cylinder body 2, a second piston 7 is slidably installed in the booster cylinder 1, the diameter of the first piston 6 is smaller than the diameter of the second piston 7, a piston rod 8 is connected between the first piston 6 and the second piston 7, and the booster cylinder 1 is respectively provided with a first fluid inlet 9 and a second fluid inlet 10 which are connected to a piston chamber 11 A two-position four-way reversing valve 20 connected to the first fluid inlet 9 and the second fluid inlet 10 is also provided. When a fluid power source is injected into the first fluid inlet 9 or the second fluid inlet 10, the second piston 7 can be driven to move left and right in the piston chamber 11. A one-way valve 12 is respectively provided in the high-pressure outlet 4 and the fluid suction port 5, and the conduction directions of the two one-way valves 12 are the same. The high-pressure outlet 4 and the fluid suction port 5 are coaxially arranged. The booster pump of the present application can be applied to fields such as hydraulic machinery equipment or industrial automation equipment. The left fluid suction port 5 and the right fluid suction port 5 can be connected in parallel or independently of each other, and the left high-pressure outlet 4 and the right high-pressure outlet 4 can be connected in parallel or independently of each other.

[0018] An intermediate flow channel 13 corresponding to the position of the first piston 6 is provided in the booster base 3, and a first fluid channel 14 and a second fluid channel 15 perpendicular to both sides of the intermediate flow channel 13 are also provided. The first fluid channel 14 and the second fluid channel 15 correspond to the high-pressure outlet 4 and the fluid suction port 5 respectively.

[0019] Each one-way valve 12 includes a compression spring 16 and a steel ball 17 arranged from top to bottom. A valve port 18 is provided in the first fluid channel 14 and the second fluid channel 15. The compression spring 16 is limited in the corresponding fluid channel and the steel ball 17 closes the valve port 18 under the action of the compression spring 16. In this embodiment, a total of four one-way valves 12 are provided.

[0020] The booster base 3 partially extends into the cylinder body 2 , and an opening 19 is provided at one end of the intermediate flow channel 13 facing the cylinder body 2 .

[0021] A sealing ring 21 is sleeved on the outer periphery of the first piston 6 , and the outer peripheral wall of the sealing ring 21 abuts against the inner peripheral wall of the cylinder body 2 . A sealing ring 21 is sleeved on the outer periphery of the second piston 7 , and the outer peripheral wall of the sealing ring 21 abuts against the inner peripheral wall of the cylinder body 2 .

[0022] Working principle: The bidirectional self-priming fluid booster pump can adjust the oil flow in two directions according to different needs and enhance the pressure in one direction to achieve higher working efficiency.

[0023] When the fluid power source is injected into the P port of the reversing valve 20, it is injected into the piston chamber 11 through the reversing port B. Under the pressure of the power source, the second piston 7 drives the two first pistons 6 to move to the left at the same time. The first piston 6 on the left squeezes the fluid in its cavity, and the one-way valve 12 in the second fluid channel 15 is closed. The state forces the fluid to be squeezed out from the one-way valve 12 of the first fluid channel 14 and pass through the left high-pressure outlet 4. At the same time, the first piston 6 on the right moves to the left, causing a vacuum to be generated in the cavity of the cylinder body 2. Under the vacuum state, the one-way valve 12 in the second fluid channel 15 on the right opens to inhale fluid from the right fluid suction port 5, completing a self-priming and pressurizing action.

[0024] When the fluid power source is injected into the port A of the reversing valve 20, the second piston 7 moves to the right. Under the pressure of the power source, the second piston 7 drives the two first pistons 6 to move to the right at the same time. The right-direction first piston 6 squeezes the fluid in its cavity. The one-way valve 12 in the right second fluid channel 15 is closed, forcing the fluid to be squeezed out from the one-way valve 12 in the right first fluid channel 14 and pass through the right high-pressure outlet 4. At the same time, the left first piston 6 moves to the right to generate a vacuum in the cavity of the cylinder cavity body. Under the vacuum state, the one-way valve 12 in the left second fluid channel 15 opens to suck fluid from the left fluid suction port 5. The second self-priming and pressurizing action is completed, and the reciprocating action of the booster pump is formed under the switching of the reversing valve 20.

[0025] The basic principles, main features and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only preferred examples of the present invention and are not used to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which shall fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A bidirectional self-priming fluid booster pump, comprising a booster cylinder (1), wherein both ends of the booster cylinder (1) are connected to a cylinder body (2), and one end of the cylinder body (2) relatively away from the booster cylinder (1) is connected to a booster base (3), the two sets of booster bases (3) have the same internal structure, the booster base (3) is provided with a high-pressure outlet (4) and a fluid suction port (5), a first piston (6) is slidably mounted in the cylinder body (2), and a second piston (7) is slidably mounted in the booster cylinder (1), the diameter of the first piston (6) is smaller than the diameter of the second piston (7), a piston rod (8) is connected between the first piston (6) and the second piston (7), and the booster cylinder (1) is respectively provided with a first fluid inlet (9) and a second fluid inlet (10) connected to a piston chamber (11), and when a fluid power source is injected into the first fluid inlet (9) or the second fluid inlet (10), the second piston (7) can be driven to move left and right in the piston chamber (11), characterized in that: One-way valves (12) are respectively arranged in the high-pressure outlet (4) and the fluid inlet (5), and the two one-way valves (12) have the same conduction direction. The high-pressure outlet (4) and the fluid inlet (5) are coaxially arranged.

2. The bidirectional self-priming fluid booster pump according to claim 1, characterized in that: The booster base (3) is provided with an intermediate flow channel (13) corresponding to the position of the first piston (6), and is also provided with a first fluid channel (14) and a second fluid channel (15) perpendicular to both sides of the intermediate flow channel (13), wherein the first fluid channel (14) and the second fluid channel (15) correspond to the high-pressure outlet (4) and the fluid suction port (5), respectively.

3. The bidirectional self-priming fluid booster pump according to claim 2, characterized in that: Each of the one-way valves (12) comprises a compression spring (16) and a steel ball (17) arranged from top to bottom, and a valve port (18) is arranged in the first fluid channel (14) and the second fluid channel (15), the compression spring (16) is limited in the corresponding fluid channel and the steel ball (17) closes the valve port (18) under the action of the compression spring (16).

4. The bidirectional self-priming fluid booster pump according to claim 2, characterized in that: The booster base (3) partially extends into the cylinder body (2), and an opening (19) is provided at one end of the intermediate flow channel (13) facing the cylinder body (2).

5. The bidirectional self-priming fluid booster pump according to claim 1, characterized in that: A two-position four-way reversing valve (20) is also provided which is in communication with the first fluid inlet (9) and the second fluid inlet (10).

6. The bidirectional self-priming fluid booster pump according to claim 1, characterized in that: A sealing ring (21) is sleeved on the outer periphery of the first piston (6), and the outer peripheral wall of the sealing ring (21) abuts against the inner peripheral wall of the cylinder body (2).

7. The bidirectional self-priming fluid booster pump according to claim 1, characterized in that: A sealing ring (21) is sleeved on the outer periphery of the second piston (7), and the outer peripheral wall of the sealing ring (21) abuts against the inner peripheral wall of the cylinder body (2).

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