Reusable split type piston for booster water pump

Abstract

The utility model discloses a reusable split type piston for a booster water pump. The reusable split type piston comprises an oil valve connecting seat, a working piston column and a fastening sealing rod. The piston adopts a split type design, only the damageable working piston column needs to be replaced, the whole piston assembly does not need to be replaced, the maintenance cost is reduced, the replacement process is simplified, and the maintenance efficiency is improved. The piston has the advantages of high-precision positioning, reliable sealing, flexible material selection and the like, and can be widely applied to various booster water pumps.

Description

Technical Field

[0001] This utility model relates to the field of booster pump technology, specifically a reusable split piston for booster water pumps. Background Technology

[0002] Booster pumps, as widely used high-pressure water source devices, play a vital role in mechanical equipment. However, the maintenance and upkeep of booster pumps, especially the replacement of vulnerable parts, accounts for a significant portion of their operating costs. During the reciprocating motion of a booster pump, the piston constantly rubs against the cylinder liner and seals, requiring periodic replacement after a period of use. Traditional piston replacement methods typically require replacing the entire piston assembly, leading to high costs for spare parts and significant labor costs for disassembling and replacing the entire piston.

[0003] Therefore, this application proposes a reusable split piston for a booster pump to solve the above-mentioned technical problems. Utility Model Content

[0004] Purpose of this utility model: To overcome the shortcomings of the prior art and provide a reusable split piston for booster pumps, which reduces maintenance costs, simplifies replacement procedures, and improves maintenance efficiency through its split design.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A reusable split-type piston for a booster water pump, comprising:

[0007] The oil valve connecting seat has an external connecting thread, a positioning step, a piston seal positioning surface, and a piston seal fastening threaded hole;

[0008] The working piston column has a piston working surface, a working piston positioning inner hole, and a piston mounting guide angle;

[0009] The fastening sealing rod has a connecting thread, a fastening sealing rod positioning surface, a sealing component, a mounting positioning hole, and an external hexagonal step; the oil valve connecting seat is connected to the central oil valve through a connecting external thread, the fastening sealing rod is connected to the oil valve connecting seat through a connecting thread, and the working piston rod is sleeved on the fastening sealing rod and positioned by the fastening sealing rod positioning surface and the working piston positioning inner hole.

[0010] As a further improvement to the above technical solution:

[0011] The material of the working piston rod is selected from corrosion-resistant materials, wear-resistant materials, acid-resistant materials, or impact-resistant materials.

[0012] The sealing assembly is installed in the sealing groove on the outer circumference of the fastening sealing rod.

[0013] The piston mounting guide angle is located at the end of the working piston rod.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] With its split design, only the easily damaged working piston rod needs to be replaced, without replacing the entire piston assembly, which greatly reduces the cost of spare parts; there is no need to disassemble the entire central oil valve, only the fastening sealing rod needs to be removed to replace the working piston rod, saving labor costs and time; the working piston rod made of appropriate materials can be selected according to different working conditions, which improves the overall service life of the piston assembly. Attached Figure Description

[0016] Figure 1 Main view of the piston assembly

[0017] Figure 2 Left perspective view of the piston assembly

[0018] Figure 3 Right 3D view of the piston assembly

[0019] Figure 4 A schematic diagram of the piston assembly installation.

[0020] In the diagram: 1. Oil valve connecting seat; 1.1. Connecting external thread; 1.2. Positioning step; 1.3. Piston seal positioning surface; 1.4. Piston seal fastening threaded hole; 2. Working piston column; 2.1. Piston working surface; 2.2. Working piston positioning inner hole; 2.3. Piston installation guide angle; 3. Fastening sealing rod; 3.1. Connecting thread; 3.2. Fastening sealing rod positioning surface; 3.3. Sealing assembly; 3.4. Installation positioning hole; 3.5. External hexagonal step; 4. Center oil valve. Detailed Implementation

[0021] In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. However, it will be apparent to those skilled in the art that the present invention can be practiced without one or more of these details. In other instances, certain technical features well-known in the art have not been described in order to avoid confusion with the present invention.

[0022] Applicant's design Figure 1-4 The reusable split piston for a booster pump shown includes:

[0023] The oil valve connecting seat 1 is used to connect with the central oil valve and fix the piston seat. The oil valve connecting seat 1 also has a connecting external thread 1.1, a positioning step 1.2, a piston seat positioning surface 1.3, and a piston seat fastening threaded hole 1.4. The connecting external thread 1.1 is located on the outside right side of the oil valve connecting seat 1 and is used to connect with the central oil valve. The positioning step 1.2 is located on the outside of the oil valve connecting seat 1 and is used for positioning when connected with the central oil valve. The piston seat positioning surface 1.3 is located on the inside right side of the oil valve connecting seat 1 and is used to position the piston seat. The piston seat fastening threaded hole 1.4 is located inside the oil valve connecting seat 1 and is used to fix the piston seat.

[0024] The working piston column 2 is in direct contact with the cylinder liner and seals, and bears friction and pressure. The working piston column 2 also has a piston working surface 2.1, a working piston positioning inner hole 2.2, and a piston installation guide angle 2.3. The piston working surface 2.1 is used for reciprocating frictional movement with the cylinder and sealing assembly 3.3. The working piston positioning inner hole 2.2 is used for positioning with other components during installation. The piston installation guide angle 2.3 is located at the end of the working piston column 2, which facilitates installation and prevents scratching of the seals and cylinder.

[0025] The fastening sealing rod 3 is used to connect and fix the oil valve connecting seat 1 and the working piston rod 2, and to provide a sealing function. The fastening sealing rod 3 also has a connecting thread 3.1, a fastening sealing rod 3 positioning surface, a sealing component 3.3, a mounting positioning hole 3.4, and an external hexagonal step 3.5. The connecting thread 3.1 is located at the right end of the fastening sealing rod 3 and is used to connect and fix it with other components. The fastening sealing rod 3 positioning surface is located on the outer circle of the fastening sealing rod 3 and is used to position itself in relation to the working piston positioning inner hole 2.2. The sealing component 3.3 is installed in the sealing groove on the outer circle of the fastening sealing rod 3 to prevent leakage of high-pressure medium. The mounting positioning hole 3.4 is located at the left end of the fastening sealing rod 3 and is used to install a temporary screw for easy assembly. The external hexagonal step 3.5 is located at the left end of the fastening sealing rod 3 and serves as a stress point during assembly and disassembly.

[0026] The oil valve connecting seat 1 is connected to the central oil valve through the connecting external thread 1.1, and the fastening sealing rod 3 is connected to the oil valve connecting seat 1 through the connecting thread 3.1. The working piston rod 2 is sleeved on the fastening sealing rod 3 and is positioned by the positioning surface of the fastening sealing rod 3 and the positioning inner hole 2.2 of the working piston.

[0027] In this embodiment, the material of the working piston column 2 is selected from corrosion-resistant materials, wear-resistant materials, acid-resistant materials, or impact-resistant materials; the sealing assembly 3.3 is installed in the sealing groove on the outer circle of the fastening sealing rod 3; and the piston mounting guide angle 2.3 is located at the end of the working piston column 2.

[0028] Working Principle: When the booster pump is working, the central oil valve 4 is connected to the oil valve connecting seat 1, providing hydraulic power. Hydraulic oil enters the oil valve connecting seat 1 through the central oil valve 4. The oil valve connecting seat 1 transmits the pressure of the hydraulic oil to the fastening sealing rod 3. Since the fastening sealing rod 3 is tightly connected to the working piston column 2, the pressure is further transmitted to the piston working surface 2.1 of the working piston column 2. Under the pressure of the hydraulic oil, the working piston column 2 reciprocates within the cylinder liner. Friction is generated between the piston working surface 2.1 and the cylinder liner and sealing assembly 3.3, pushing water or other fluids to be pressurized. The sealing assembly 3.3 on the fastening sealing rod 3 ensures that the hydraulic oil does not leak, guaranteeing the efficiency and stability of pressure transmission. The sealing assembly 3.3 is usually an O-ring or other type of seal, installed in the sealing groove on the outer circumference of the fastening sealing rod 3.

[0029] Positioning and fixing principle: The positioning surface of the fastening sealing rod 3 and the positioning inner hole 2.2 of the working piston are mutually positioned, ensuring the stability and accuracy of the working piston column 2 during movement. The oil valve connecting seat 1 is connected to the central oil valve 4 through the connecting external thread 1.1 and is positioned by the positioning step 1.2, ensuring a stable connection between the piston assembly and the central oil valve 4. When the working piston column 2 needs to be replaced due to wear, use a tool to hold the external hexagonal step 3.5 of the fastening sealing rod 3, loosen and remove the fastening sealing rod 3. Then, remove the worn working piston column 2 from the fastening sealing rod 3 and replace it with a new working piston column 2. Finally, retighten the fastening sealing rod 3 to complete the replacement.

[0030] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A reusable split-type piston for a booster water pump, characterized in that, include: The oil valve connecting seat has an external connecting thread, a positioning step, a piston seal positioning surface, and a piston seal fastening threaded hole; The working piston column has a piston working surface, a working piston positioning inner hole, and a piston mounting guide angle; The fastening sealing rod has a connecting thread, a fastening sealing rod positioning surface, a sealing component, a mounting positioning hole, and an external hexagonal step; the oil valve connecting seat is connected to the central oil valve through a connecting external thread, the fastening sealing rod is connected to the oil valve connecting seat through a connecting thread, and the working piston rod is sleeved on the fastening sealing rod and positioned by the fastening sealing rod positioning surface and the working piston positioning inner hole.

2. The reusable split piston for a booster pump according to claim 1, characterized in that, The material of the working piston rod is selected from corrosion-resistant materials, wear-resistant materials, acid-resistant materials, or impact-resistant materials.

3. The reusable split piston for a booster pump according to claim 1, characterized in that, The sealing assembly is installed in the sealing groove on the outer circumference of the fastening sealing rod.

4. The reusable split piston for a booster pump according to claim 1, characterized in that, The piston mounting guide angle is located at the end of the working piston rod.

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