Plunger pump

Abstract

The utility model discloses a plunger pump which comprises a motor, a pump head, a pump body, a plunger cavity hole, a plunger and a water seal fixing seat, a water inlet and a water outlet are formed in the pump head, a bayonet is formed in the pump body, and the water seal fixing seat is in threaded connection with the bayonet. The plunger is slidably connected into the wedging groove, and sealing rings are arranged in the wedging groove at equal intervals. The water seal fixing seat is convenient to mount and maintain through the design of the insertion hole; the expansion interface enhances the expansibility and the connection capability of the pump; the configuration of the exhaust valve and the pressure regulating valve ensures stable operation and flexible pressure regulation of the pump; due to the design of the abutting groove and the abutting ring, over-travel movement of the plunger is effectively prevented; the application of the direct current motor provides a strong power source and excellent speed regulation performance; and the pump body made of the corrosion-resistant material prolongs the service life of the pump and widens the application scene of the pump.

Description

Technical Field

[0001] The utility model belongs to the technical field of water pumps, and particularly relates to a piston pump. Background Art

[0002] Traditional piston pumps have some significant defects in design, especially in terms of maintenance convenience, expandability, and corrosion resistance. Specifically, these pumps often result in complex and cumbersome maintenance work in their structural design. For example, the installation and disassembly process of the water seal fixing seat may be very complicated, requiring a lot of time and effort, which poses a great challenge for daily maintenance and emergency repairs. In addition, the material selection of the pump body may not meet the usage requirements in a corrosive fluid environment, which can cause the pump body to be easily corroded, thereby affecting its service life and reliability; in terms of expandability, the design of traditional piston pumps often lacks flexibility and is difficult to adapt to changes in different working conditions and application requirements. Summary of the Utility Model

[0003] To solve the problems raised in the above background art, the utility model provides the following technical solutions: A piston pump includes a motor, a pump head, a pump body, a piston cavity hole, a piston, and a water seal fixing seat. The pump head is provided with a water inlet and a water outlet, and a water inlet channel and a water outlet channel are provided inside the pump head. The water inlet, the water outlet, the water inlet channel, and the water outlet channel are interconnected. The pump body is provided with a bayonet, and the water seal fixing seat is threadedly connected to the bayonet. The piston is located inside the piston cavity, and a fitting groove matching the piston is provided inside the water seal fixing seat. The piston is slidably connected inside the fitting groove.

[0004] Further, a jack for connecting a tool is provided on the end face of the water seal fixing seat adjacent to the piston.

[0005] Further, a plurality of expansion interfaces are provided on the side wall of the pump head.

[0006] Further, the expansion interface can be used to connect a pressure gauge.

[0007] Further, an exhaust valve is connected to the outer wall of the pump head.

[0008] Further, a pressure regulating valve is connected to the outer wall of the pump head.

[0009] Further, a holding groove is provided at the end of the water seal fixing seat adjacent to the piston, the jack is provided on the holding groove, and a holding ring is provided on the outer wall of the piston.

[0010] Further, the motor is a DC motor.

[0011] Further, the material of the pump body is a corrosion-resistant material.

[0012] The beneficial effects of the present utility model are as follows: The jack design facilitates the installation and maintenance of the water seal fixing seat; the expansion interface enhances the expandability and connection ability of the pump; the configuration of the exhaust valve and the pressure regulating valve ensures the stable operation and flexible pressure regulation of the pump; the design of the abutting groove and the abutting ring effectively prevents the overtravel movement of the plunger; the application of the DC motor provides a powerful power source and excellent speed regulation performance; the pump body made of corrosion-resistant material extends the service life of the pump and broadens its application scenarios. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is a perspective view of the present utility model;

[0014] Figure 2 is a perspective view of the motor-removed part of the present utility model;

[0015] Figure 3 is a top view of the motor-removed part of the present utility model;

[0016] Figure 4 is a schematic diagram of the connection relationship between the pump body and the water seal fixing seat of the present utility model;

[0017] Figure 5 is a schematic diagram of the structure of the water seal fixing seat of the present utility model;

[0018] Figure 6 is a schematic diagram of the structure of the pump head of the present utility model;

[0019] Figure 7 is a schematic diagram of the structure of the plunger of the present utility model;

[0020] Figure 8 is a schematic diagram of the structure for connecting the pressure gauge of the present utility model.

[0021] The meanings of the reference numerals in the figures: 1 - motor; 2 - pump head; 3 - pump body; 4 - plunger cavity hole; 5 - plunger; 6 - water seal fixing seat; 7 - water inlet; 8 - water outlet; 9 - bayonet; 10 - fitting groove; 12 - jack; 13 - expansion interface; 14 - exhaust valve; 15 - pressure regulating valve; 16 - abutting groove; 17 - abutting ring; 18 - pressure gauge. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without making creative efforts shall fall within the protection scope of the present utility model.

[0023] Please refer toFigure 1-8 The present utility model provides the following technical solutions: A plunger pump, comprising a motor 1, a pump head 2, a pump body 3, a plunger cavity hole 4, a plunger 5, and a water seal fixing seat 6. An inlet 7 and an outlet 8 are provided on the pump head 2. An inlet passage and an outlet passage are provided inside the pump head 2. The inlet 7, the outlet 8, the inlet passage, and the outlet passage are interconnected. A bayonet 9 is provided on the pump body 3. The water seal fixing seat 6 is threadedly connected to the bayonet 9. The plunger 5 is located inside the plunger 5 cavity. A fitting groove 10 matching the plunger 5 is provided inside the water seal fixing seat 6. The plunger 5 is slidably connected inside the fitting groove 10.

[0024] In this embodiment, a jack 12 for connecting a tool is provided on the end face of the water seal fixing seat 6 adjacent to the plunger 5.

[0025] With the above structure, it is convenient to use tools for the installation, disassembly, or maintenance operation of the water seal fixing seat 6.

[0026] In this embodiment, a plurality of expansion interfaces 13 are provided on the side wall of the pump head 2.

[0027] With the above structure, more connection possibilities are provided for the pump. For example, it can be connected to other devices or sensors, enhancing the expandability and functionality of the pump.

[0028] Preferably in this embodiment, the expansion interface 13 can be used to connect a pressure gauge 18.

[0029] With the above structure, it is convenient to visually observe the pressure in the pump.

[0030] In this embodiment, an exhaust valve 14 is connected to the outer wall of the pump head 2.

[0031] In the above structure, connecting the exhaust valve 14 to the outer wall of the pump head 2 helps to expel the air inside the pump before starting or during operation, ensuring the stable operation of the pump and the smooth flow of the fluid.

[0032] In the above structure, a pressure regulating valve 15 is connected to the outer wall of the pump head 2.

[0033] With the above structure, connecting the pressure regulating valve 15 to the outer wall of the pump head 2 allows users to adjust the output pressure of the pump as needed and also plays a role in stabilizing the pressure, avoiding the pressure exceeding the set value, and increasing the flexibility and applicability of the pump.

[0034] In this embodiment, a holding groove 16 is provided at the end of the water seal fixing seat 6 adjacent to the plunger 5. The jack 12 is provided on the holding groove 16. A holding ring 17 is provided on the outer wall of the plunger 5.

[0035] In the above structure, the design of the abutting groove 16 and the abutting ring 17 is for limiting, preventing the plunger 5 driven by the motor 1 from having an over-travel movement during operation. This design ensures that the plunger 5 moves within a predetermined stroke range, thus avoiding problems such as mechanical damage, leakage, or performance degradation that may be caused by over-travel movement.

[0036] In this embodiment, the motor 1 is a DC motor 1.

[0037] Adopting the above structure and using the DC motor 1 as the power source has a large starting torque, good speed regulation performance, and simple control, making it have a stronger pressure transmission performance.

[0038] In this embodiment, the material of the pump body 3 is a corrosion-resistant material.

[0039] Adopting the above structure and selecting a corrosion-resistant material to make the pump body 3 can effectively resist the erosion of corrosive substances in the fluid on the pump body 3, extend the service life of the pump, and make it suitable for occasions such as seawater desalination and outdoors.

[0040] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A plunger pump, comprising a motor, a pump head, a pump body, a plunger cavity, a plunger, and a water seal fixing seat, wherein the pump head is provided with a water inlet and a water outlet, the pump head is provided with a water inlet channel and a water outlet channel, the water inlet, the water outlet, the water inlet channel, and the water outlet channel are interconnected, the pump body is provided with a bayonet, the water seal fixing seat is threadedly connected to the bayonet, and is characterized in that: The plunger is located in the plunger cavity, and a fitting groove matching the plunger is provided in the water seal fixing seat, and the plunger is slidably connected in the fitting groove.

2. A plunger pump according to claim 1, characterized in that: The end surface of the water seal fixing seat adjacent to the plunger is provided with a socket for connecting a tool.

3. A plunger pump according to claim 1, characterized in that: A plurality of expansion interfaces are provided on the side wall of the pump head.

4. A plunger pump according to claim 1, characterized in that: The outer wall of the pump head is connected with an exhaust valve.

5. A plunger pump according to claim 1, characterized in that: The outer wall of the pump head is connected with a pressure regulating valve.

6. A plunger pump according to claim 2, characterized in that: The end of the water seal fixing seat adjacent to the plunger is provided with a supporting groove, the insertion hole is provided on the supporting groove, and the outer wall of the plunger is provided with a supporting ring.

7. A plunger pump according to claim 1, characterized in that: The motor is a DC motor.

8. A plunger pump according to claim 1, characterized in that: The pump body is made of corrosion-resistant material.

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