A lightweight heavy-duty piston for a reciprocating water booster pump

Abstract

This utility model discloses a lightweight heavy-duty piston for a reciprocating booster water pump, comprising a piston body and a rear cover plate. The piston body has a weight-reducing chamber inside to reduce the overall weight of the piston. The rear cover plate is threadedly fixed to the rear end of the piston body to seal the weight-reducing chamber. A sealing ring is provided between the piston body and the rear cover plate to prevent the working medium from entering the weight-reducing chamber. This utility model's piston effectively reduces weight and inertial forces while maintaining structural strength, thereby improving the efficiency and performance of the booster water pump.

Description

Technical Field

[0001] This utility model relates to the field of reciprocating booster pump technology, specifically a lightweight heavy-duty piston for a reciprocating booster pump. Background Technology

[0002] Reciprocating booster pumps, as a common high-pressure water source device, are widely used in various mechanical equipment. In high-flow reciprocating booster pumps, the piston is usually designed with heavy weight to withstand high pressure and high load. However, the reciprocating motion of the heavy-duty piston generates a large inertial force, requiring a significant amount of energy to overcome the piston's kinetic energy during reversal, thus reducing the overall efficiency of the pump.

[0003] Traditional heavy-duty piston designs often employ a solid structure, resulting in significant weight and inertial forces. To improve the efficiency and performance of booster pumps, the structure of heavy-duty pistons needs to be optimized. While maintaining structural strength, the weight of the piston should be reduced as much as possible to decrease inertial forces and thus reduce energy loss.

[0004] Therefore, this application provides a lightweight heavy-duty piston for a reciprocating booster pump to solve the technical problems existing in the prior art. Utility Model Content

[0005] Purpose of the utility model: To provide a lightweight heavy-duty piston for a reciprocating booster pump. This piston effectively reduces weight and inertial force while ensuring structural strength, thereby improving the efficiency and performance of the booster pump.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A lightweight heavy-duty piston for a reciprocating booster water pump, comprising:

[0008] The piston body and the rear cover plate are connected and installed together. The piston body has a weight-reducing structure inside to reduce the overall weight of the piston. The rear cover plate is fixed to the rear end of the piston body by a threaded connection to seal the weight-reducing chamber. A sealing ring is provided between the piston body and the rear cover plate to prevent the working medium from entering the weight-reducing chamber.

[0009] As a further improvement to the above technical solution:

[0010] The piston body also includes a positioning structure for precise positioning and installation with the central oil valve.

[0011] The outer surface of the piston body is provided with a flow-guiding structure to ensure the flow of the medium.

[0012] The rear cover plate is provided with an installation auxiliary structure to facilitate the installation and fixation of the rear cover plate.

[0013] The piston body and the rear cover plate are connected by threaded connection, snap-fit ​​connection, welding connection or interference fit.

[0014] The weight-reducing structure is a cavity, through hole, groove, or made of lightweight material.

[0015] The sealing ring is an O-ring, gasket, or sealant.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] 1. Lightweight design: By setting a weight-reducing chamber inside the piston body, the overall weight of the piston is effectively reduced, the inertial force is reduced, thereby reducing energy loss during reversal and improving the efficiency of the booster pump.

[0018] 2. Reliable structural strength: The use of threaded connection and sealing ring design ensures the connection strength and sealing performance between the piston body and the rear cover plate, preventing the working medium from entering the weight reduction chamber and ensuring the normal operation of the piston.

[0019] 3. Easy installation: The rear cover plate is provided with installation threaded holes, which facilitates the installation and fixing of the rear cover plate.

[0020] 4. Improved efficiency: Experiments show that using the lightweight heavy-duty piston of this invention can improve the efficiency of the booster pump by more than 10%.

[0021] 5. Good economic efficiency: The piston of this utility model is simple to process and manufacture, and does not require complex processes such as welding, which reduces production costs. Attached Figure Description

[0022] Figure 1 : A cross-sectional view of the piston structure in this utility model;

[0023] Figure 2 : Left perspective view of the piston in this utility model;

[0024] Figure 3 : Right perspective view of the piston in this utility model.

[0025] In the diagram: 1. Piston body; 2. Rear cover plate; 3. Sealing ring; 4. Weight reduction chamber; 1.1. Rear cover plate positioning surface; 1.2. Sealing installation step; 1.3. Rear cover plate fastening thread; 1.4. Installation process threaded hole; 1.5. Rear cover plate working surface; 2.1. Drainage angle; 2.2. Positioning surface; 2.3. Positioning step; 2.4. Piston mounting thread; 2.5. Seat mounting hole; 2.6. Seat positioning surface; 2.7. Piston mounting guide fillet. Detailed Implementation

[0026] 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.

[0027] like Figure 1 , Figure 2 and Figure 3 As shown, the lightweight heavy-duty piston of this utility model includes a piston body 1 and a rear cover plate 2. A weight-reducing chamber 4 is provided inside the piston body 1 to reduce the overall weight of the piston. The rear cover plate 2 is fixed to the rear end of the piston body 1 by a threaded connection to seal the weight-reducing chamber 4. A sealing ring 3 is provided between the piston body 1 and the rear cover plate 2 to prevent the working medium from entering the weight-reducing chamber 4.

[0028] The piston body 1 includes a rear cover plate positioning surface 1.1, a sealing mounting step 1.2, a rear cover plate fastening thread 1.3, an installation process threaded hole 1.4, and a rear cover plate working surface 1.5. The rear cover plate 2 includes a drainage angle 2.1, a positioning surface 2.2, a positioning step 2.3, a piston mounting thread 2.4, a seal mounting hole 2.5, a seal positioning surface 2.6, and a piston mounting guide radius 2.7.

[0029] During installation, first, the sealing ring 3 is installed on the sealing mounting step 1.2 of the piston body 1. Then, the rear cover plate 2 is screwed into the rear end of the piston body 1 through the rear cover plate fastening thread 1.3, and the rear cover plate 2 is temporarily fixed using the installation process threaded hole 1.4 to facilitate tightening of the rear cover plate fastening thread 1.3. After tightening the rear cover plate 2, the piston body 1 and the rear cover plate 2 are positioned by the rear cover plate positioning surface 1.1, forming a complete piston structure.

[0030] Working principle:

[0031] When the booster pump is working, the piston reciprocates within the cylinder. Because the piston body 1 has a weight-reducing chamber 4, the overall weight of the piston is greatly reduced, and the inertial force is also decreased. When the piston reverses direction, the inertial force that needs to be overcome is reduced, thereby reducing energy loss and improving the efficiency of the booster pump.

[0032] Meanwhile, the sealing ring 3 effectively prevents the working medium from entering the weight reduction chamber 4, ensuring the normal operation of the piston. The drainage angle 2.1 ensures the flow of the medium when the piston body 1 is tightly fitted with the central oil valve. The positioning surface 2.2 and positioning step 2.3 allow for precise positioning and installation with the central oil valve, ensuring design parameters. The seal mounting hole 2.5 and seal positioning surface 2.6 allow for precise installation with the piston seal, ensuring design process specifications.

[0033] 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 lightweight heavy-duty piston for a reciprocating water booster pump, characterized by, include: The piston body and the rear cover plate are connected and installed together. The piston body has a weight-reducing structure inside to reduce the overall weight of the piston. The rear cover plate is fixed to the rear end of the piston body by a threaded connection to seal the weight-reducing chamber. A sealing ring is provided between the piston body and the rear cover plate to prevent the working medium from entering the weight-reducing chamber.

2. The lightweight heavy-duty piston for a reciprocating water booster pump according to claim 1, characterized by, The piston body also includes a positioning structure for precise positioning and installation with the central oil valve.

3. The lightweight heavy-duty piston for a reciprocating water booster pump according to claim 1, characterized by, The outer surface of the piston body is provided with a flow-guiding structure to ensure the flow of the medium.

4. The lightweight heavy-duty piston for a reciprocating water booster pump according to claim 1, characterized by, The rear cover plate is provided with an installation auxiliary structure to facilitate the installation and fixation of the rear cover plate.

5. The lightweight heavy-duty piston for a reciprocating water booster pump according to claim 1, characterized by, The piston body and the rear cover plate are connected by threaded connection, snap-fit ​​connection, welding connection or interference fit.

6. The lightweight heavy-duty piston for a reciprocating water booster pump of claim 1, wherein The weight-reducing structure is a cavity, through hole, groove, or made of lightweight material.

7. The lightweight heavy-duty piston for a reciprocating water booster pump of claim 1, wherein The sealing ring is an O-ring, gasket, or sealant.

Images