Water pump inlet pressure regulating device

Abstract

The utility model provides a kind of water pump water inlet pressure regulating device.The utility model includes shell, pressure regulating subassembly, is equipped with water inlet passage, middle passage, water outlet passage on shell, water inlet passage, middle passage, water outlet passage three intercommunication, pressure regulating subassembly includes the adjusting shell, adjusting piece, elastic member, slide column, elastic diaphragm, switch arranged in turn, adjusting piece is connected in adjusting shell with screw thread, slide column is connected in adjusting shell with sliding, the end portion of slide column is away from elastic member and is abutted on elastic diaphragm;It also includes mounting seat, is equipped with mounting groove, flow hole on mounting seat, mounting seat is connected in shell by first bolt, adjusting shell is inserted in mounting groove, elastic diaphragm is extruded between adjusting shell and mounting groove groove bottom, water flow that enters the mounting groove from flow hole generates the thrust to the side of slide column to elastic diaphragm. Inside using independent mounting seat to adapt different size specifications water pump, and adaptability is stronger. Manufacturing cost can also be reduced.

Description

Technical Field

[0001] This utility model relates to pressure regulating devices, and more particularly, to a water pump inlet pressure regulating device. Background Technology

[0002] Chinese utility model patent CN223424257U discloses a manually adjustable automatic water pump with an internal pressure regulating component. It mainly consists of an adjusting component, a third elastic component, a sliding column, a protective membrane, steel balls, and a switch, with the adjusting component, third elastic component, sliding column, and protective membrane arranged sequentially from top to bottom. By adjusting the vertical position of the adjusting component, the elastic force of the third elastic component can be controlled. This elastic force acts directly on the sliding column, and the lower end of the sliding column abuts against the protective membrane.

[0003] When the water pump is working, the water pressure acts on the protective membrane from bottom to top, causing the membrane to arch upwards. The protective membrane pushes the sliding column upwards. During this process, the sliding column must overcome the elastic force of the third elastic element, thereby pushing the steel ball to move to the left (refer to the orientation shown in Figure 4 of patent CN223424257U). The steel ball realizes the opening and closing of the switch, completing the trigger action of pressure regulation.

[0004] Despite the excellent pressure regulating performance of this structure, the internal structures of different types of water pumps vary significantly. A single-structure pressure regulating device is difficult to adapt to water pumps of various sizes, thus limiting its applicability and requiring improvement in adaptability. Utility Model Content

[0005] In view of this, the purpose of this utility model is to provide a water pump inlet pressure regulating device that can be adapted to more different types of water pumps.

[0006] To solve the above-mentioned technical problems, the technical solution of this utility model is as follows: A water pump inlet pressure regulating device includes a housing and a pressure regulating assembly. The housing has an inlet channel, a middle channel, and an outlet channel, which are interconnected. The pressure regulating assembly includes an adjusting shell, an adjusting element, an elastic element, a sliding column, an elastic diaphragm, and a switch arranged in sequence. The adjusting element is threaded to the adjusting shell, and the sliding column is slidably connected inside the adjusting shell. The movement of the sliding column controls the opening and closing of the switch. The two ends of the elastic element abut against the adjusting element and the sliding column, respectively, and the end of the sliding column away from the elastic element abuts against the elastic diaphragm. It also includes a mounting base, which has a mounting groove and a flow hole. The mounting base is connected to the housing by a first bolt. The mounting groove, the flow hole, and the central channel are connected in sequence. The adjusting shell is inserted into the mounting groove. The elastic diaphragm is squeezed between the adjusting shell and the bottom of the mounting groove. The water flow entering the mounting groove through the flow hole generates a thrust on the elastic diaphragm towards the sliding column side.

[0007] The above technical solution involves first installing the mounting base onto the housing, and then installing the elastic component onto the mounting base. The internal mounting base is designed to accommodate water pumps of different sizes and specifications, resulting in greater adaptability. Furthermore, the pressure regulating component has a relatively complex structure due to the large number of internal components, making it universally compatible. The independent mounting base can be injection molded specifically for different usage scenarios, which can also reduce manufacturing costs.

[0008] Preferably, the mounting base includes a mounting edge located on the periphery, through which the first bolt passes and is threaded onto the housing.

[0009] With the above technical solution, the mounting edge on the mounting base is connected to the housing by the first bolt, and the connection between the two is stable and easy to disassemble and assemble.

[0010] Preferably, a sealing ring is installed between the mounting edge and the side wall of the housing.

[0011] The above technical solution can effectively ensure the sealing between the installation edge and the side wall of the outer casing, and limit the overflow of water in the middle channel.

[0012] Preferably, the bottom of the mounting groove is provided with a stepped groove, and the mounting groove, the stepped groove and the flow hole are connected in sequence. A support platform is provided in the stepped groove, and the support platform is used to abut against the side wall of the elastic diaphragm.

[0013] Through the above technical solution, the elastic diaphragm will deform vertically during actual use. After the elastic diaphragm deforms downward, the support platform can abut against the lower side wall of the elastic diaphragm, thereby limiting the excessive downward deformation of the elastic diaphragm. On the one hand, it can protect the elastic diaphragm; on the other hand, it can also limit the extreme movement position of the sliding column.

[0014] Preferably, there are two or more support platforms, which are evenly distributed around the opening of the flow orifice, with a gap between adjacent support platforms.

[0015] Through the above technical solution, firstly, two or more support platforms can provide relatively stable support for the elastic diaphragm and sliding column; secondly, the water flowing in through the flow orifice can flow smoothly into the stepped groove through the gap, minimizing the impact on the water flow rate.

[0016] Preferably, the mounting base is provided with an extension block, the flow orifice is located on the extension block, and the extension block extends into the central channel.

[0017] By using the above technical solution, the extension block extends into the central channel, which helps to improve the stability of water flow into the flow orifice in the central channel and reduces the possibility of violent fluctuations of the elastic diaphragm caused by local water flow impact. Attached Figure Description

[0018] Figure 1 This is a cross-sectional schematic diagram of an embodiment; Figure 2 This is a schematic diagram of the installation structure of the housing, adjustment component, and mounting base in the embodiment. Figure 3 Schematic diagram of the mounting base Figure 1 ; Figure 4 Schematic diagram of the mounting base Figure 2 ; Figure 5 This is a schematic diagram of the structure for adjusting the outer shell.

[0019] Reference numerals: 1. Housing; 2. Inlet channel; 3. Middle channel; 4. Outlet channel; 5. Pressure regulating assembly; 51. Adjusting housing; 52. Adjusting component; 53. Elastic component; 54. Sliding column; 55. Elastic diaphragm; 56. Switch; 6. Mounting base; 7. Mounting edge; 8. Mounting groove; 9. Flow orifice; 10. First bolt; 11. Sealing ring; 12. Step groove; 13. Support platform; 14. Gap; 15. Extension block; 16. Second bolt. Detailed Implementation

[0020] The following is in conjunction with the appendix Figure 1 -Appendix Figure 5 The specific embodiments of this utility model will be further described in detail to make the technical solution of this utility model easier to understand and master.

[0021] A water pump inlet pressure regulating device includes a housing 1 and a pressure regulating component 5.

[0022] The casing 1 is provided with an inlet channel 2, a middle channel 3, and an outlet channel 4, which are interconnected to accommodate... Figure 1 As shown, the inlet channel 2, the middle channel 3, and the outlet channel 4 are arranged from right to left.

[0023] The pressure regulating assembly 5 includes an adjusting housing 51, an adjusting element 52, an elastic element 53, a sliding column 54, an elastic diaphragm 55, and a switch 56 arranged in sequence.

[0024] With attachment Figure 1 As shown, the adjusting member 52, the elastic member 53, the sliding column 54, and the elastic diaphragm 55 are arranged sequentially from top to bottom. The adjusting member 52 is threadedly connected to the adjusting housing 51. The sliding column 54 is slidably connected inside the adjusting housing 51, and its movement controls the opening and closing of the switch 56. The elastic member 53 can be a spring, with its two ends abutting against the adjusting member 52 and the sliding column 54, respectively. The end of the sliding column 54 facing away from the elastic member 53 abuts against the elastic diaphragm 55.

[0025] A mounting base 6 is also provided, which has a mounting groove 8 and a flow hole 9. The mounting base 6 is connected to the housing 1 by a first bolt 10. The mounting groove 8, the flow hole 9, and the central channel 3 are connected in sequence. The adjusting housing 51 is inserted into the mounting groove 8.

[0026] To further improve the installation stability and ease of disassembly of the adjusting housing 51, the adjusting housing 51 and the mounting base 6 can be connected by the second bolt 16.

[0027] The elastic diaphragm 55 is pressed between the regulating housing 51 and the bottom of the mounting groove 8. The water flow entering the mounting groove 8 through the flow hole 9 generates a thrust on the elastic diaphragm 55 towards the sliding column 54.

[0028] To further improve the installation stability and ease of disassembly of the mounting base 6, the mounting base 6 includes a mounting edge 7 located on the periphery, through which the first bolt 10 passes and is threaded onto the housing 1.

[0029] A sealing ring 11 is installed between the mounting edge 7 and the side wall of the housing.

[0030] A stepped groove 12 is provided at the bottom of the mounting groove 8. The mounting groove 8, the stepped groove 12, and the flow orifice 9 are connected in sequence. A support platform 13 is provided in the stepped groove 12. The support platform 13 is used to abut against the side wall of the elastic diaphragm 55. There are two or more support platforms 13. In this embodiment, four support platforms 13 are shown. The support platforms 13 are evenly distributed around the opening of the flow orifice 9, and a gap 14 is left between two adjacent support platforms 13.

[0031] An extension block 15 is provided on the mounting base 6, and the flow hole 9 is located on the extension block 15, which extends into the central channel 3.

[0032] In actual use, water flows through the inlet channel 2, the middle channel 3, and the outlet channel 4. The water in the middle channel 3 enters the flow orifice 9, the gap 14, and the stepped groove 12. The water flow exerts a thrust on the elastic diaphragm 55 towards the slide column 54. The slide column 54 overcomes the elastic force of the elastic element 53 and moves towards the regulating element 52. The slide column 54 triggers the switch 56, which performs corresponding opening and closing actions, thereby ultimately controlling the booster power source of the water pump.

[0033] Of course, the above are just typical examples of this utility model. In addition, this utility model may have many other specific implementation methods. All technical solutions formed by equivalent substitution or equivalent transformation fall within the scope of protection claimed by this utility model.

Claims

1. A water pump inlet pressure regulating device, comprising a housing (1) and a pressure regulating assembly (5), wherein the housing (1) is provided with an inlet channel (2), a middle channel (3), and an outlet channel (4), the inlet channel (2), the middle channel (3), and the outlet channel (4) being interconnected; the pressure regulating assembly (5) comprises an adjusting shell (51), an adjusting member (52), an elastic member (53), a sliding column (54), an elastic diaphragm (55), and a switch (56) arranged in sequence; the adjusting member (52) is threadedly connected to the adjusting shell (51); the sliding column (54) is slidably connected inside the adjusting shell (51); the sliding column (54) moves to control the opening and closing of the switch (56); both ends of the elastic member (53) abut against the adjusting member (52) and the sliding column (54) respectively; the end of the sliding column (54) away from the elastic member (53) abuts against the elastic diaphragm (55); characterized in that: It also includes a mounting base (6), which is provided with a mounting groove (8) and a flow hole (9). The mounting base (6) is connected to the housing (1) by a first bolt (10). The mounting groove (8), the flow hole (9), and the central channel (3) are connected in sequence. The regulating housing (51) is inserted into the mounting groove (8). The elastic diaphragm (55) is squeezed between the regulating housing (51) and the bottom of the mounting groove (8). The water flow entering the mounting groove (8) through the flow hole (9) generates a thrust on the elastic diaphragm (55) towards the sliding column (54).

2. The water pump inlet pressure regulating device according to claim 1, characterized in that: The mounting base (6) includes a mounting edge (7) located on the periphery, through which the first bolt (10) passes and is threaded onto the housing (1).

3. The water pump inlet pressure regulating device according to claim 2, characterized in that: A sealing ring (11) is installed between the mounting edge (7) and the side wall of the outer casing.

4. The water pump inlet pressure regulating device according to claim 1, characterized in that: The bottom of the mounting groove (8) is provided with a stepped groove (12). The mounting groove (8), the stepped groove (12), and the flow hole (9) are connected in sequence. A support platform (13) is provided in the stepped groove (12). The support platform (13) is used to abut against the side wall of the elastic diaphragm (55).

5. A water pump inlet pressure regulating device according to claim 2, characterized in that: The number of the support platforms (13) is two or more, and the support platforms (13) are evenly distributed around the opening of the flow hole (9), with a gap (14) between two adjacent support platforms (13).

6. A water pump inlet pressure regulating device according to any one of claims 1-5, characterized in that: The mounting base (6) is provided with an extension block (15), the flow hole (9) is located on the extension block (15), and the extension block (15) extends into the central channel (3).

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