Knob valve capable of displaying gears and accurately adjusting water flow and air pressure

Abstract

The utility model relates to a knob valve capable of displaying gears and accurately adjusting water flow and air pressure, and belongs to the technical field of pressure adjusting structures of rotary valves of medical instruments. The utility model discloses a knob valve capable of displaying gears and accurately adjusting water flow and air pressure. The knob valve comprises an adjusting rotating structure, a potentiometer adjusting plate, a pressure adjusting valve fixing plate and a pressure adjusting valve. The potentiometer adjusting plate and the pressure adjusting valve are fixed to the two end faces of the pressure adjusting valve fixing plate respectively, and the adjusting rotating structure penetrates through the potentiometer adjusting plate and the pressure adjusting valve fixing plate to be connected with the pressure adjusting valve. The pressure adjusting cap is rotated to drive the adjusting rod to rotate, the adjusting rotating inlet in the rod body of the adjusting rod is communicated with the adjusting rotating outlet in the front section of the adjusting rod, the adjusting rotating inlet and the adjusting rotating outlet move relative to the pressure adjusting valve inlet and the pressure adjusting valve outlet in the axial direction, and meanwhile the pressure adjusting cap drives the potentiometer contact to rotate to display gears. And accurate adjustment of water pressure and air pressure is realized.

Description

Technical Field

[0001] This application relates to the field of pressure regulating structure technology for rotary valves in medical devices, and in particular to a rotary valve that displays the pressure setting and precisely adjusts the water flow and air pressure. Background Technology

[0002] With the upgrading of skin care needs, deep cleansing and skin management technologies have gradually become the core direction of the beauty device industry. Among them, large bubble technology is a skin cleansing technology based on micron-level bubble generation and intelligent negative pressure control. Through physical adsorption and bubble bursting effect, it achieves the synergistic effect of deep skin cleansing, keratin softening and nutrient delivery. Thus, the precise adjustment of water flow and air pressure is an important part of the core technology of large bubble beauty devices.

[0003] However, the main structure for regulating water flow and air pressure—the traditional knob valve—has a non-linear relationship between the valve core stroke and flow rate. The manual knob scale is coarse, making it difficult to accurately adjust the flow rate. It lacks a positioning and locking mechanism, and vibration or accidental touch can easily cause the valve opening to deviate. It relies on the direct cooperation between the threaded rod and the valve core, requiring special tools for disassembly and maintenance, and replacing seals is time-consuming. The standardization of parts is low, and the interchangeability of accessories for different valve models is poor. Utility Model Content

[0004] In view of this, this application provides a rotary valve that displays the gear position and precisely adjusts the water flow and air pressure, which can effectively overcome the defects of the prior art.

[0005] This application provides a rotary valve that displays the gear position and precisely adjusts the water flow and air pressure, including an adjustment rotation structure, a potentiometer adjustment plate, a pressure regulating valve fixing plate, and a pressure regulating valve; the potentiometer adjustment plate is fixed to the pressure regulating valve fixing plate by screws; the potentiometer adjustment plate and the pressure regulating valve are respectively fixed on the two end faces of the pressure regulating valve fixing plate, and the adjustment rotation structure passes through the potentiometer adjustment plate and the pressure regulating valve fixing plate to connect with the pressure regulating valve.

[0006] Preferably, the adjusting rotation structure includes a pressure adjusting cap, a limiting bolt, an adjusting pressure ring, an adjusting rod, a rubber pad, and a rubber ring; the front end of the adjusting rod has a notch for inserting the rubber pad, and the rod body has a groove for inserting the rubber ring, and is axially fixed to the pressure regulating valve fixing plate by the adjusting pressure ring through a step; the limiting bolt and the adjusting rod are engaged with the ribs inside the pressure adjusting cap through the slots at their respective tail ends, and the pressure adjusting cap is engaged with the potentiometer on the potentiometer adjusting plate by its own snap-fit.

[0007] Preferably, the adjusting rotation structure is provided with an adjusting rotation inlet and an adjusting rotation outlet, and the adjusting rotation inlet on the adjusting rod body is connected to the adjusting rotation outlet at the front end of the adjusting rod; the pressure regulating valve is provided with a pressure regulating valve inlet and a pressure regulating valve outlet.

[0008] Rotating the pressure regulating cap causes the adjusting rod to rotate, and the inlet and outlet of the adjusting rotating assembly move axially relative to the inlet and outlet of the pressure regulating valve. At the same time, the pressure regulating cap causes the potentiometer contacts to rotate to display the gear position.

[0009] Preferably, the front end of the adjusting rod is provided with a notch and a pressure regulating outlet, the rod body is provided with a pressure regulating inlet, and the pressure regulating outlet is connected to the pressure regulating inlet; the notch is a circle with a flat platform, the pressure regulating outlet is rectangular and has limiting posts on both sides; the shape of the rubber pad is adapted to the shape of the notch of the adjusting rod, and the rubber pad is provided with a semi-circular hole, which is adapted to the limiting posts of the adjusting rod.

[0010] Preferably, the adjusting pressure ring is provided with a limiting post, and the limiting bolt is provided with a fan-shaped groove, and the two cooperate with each other to achieve stroke limitation.

[0011] Preferably, the pressure regulating valve includes an air regulating valve and a water regulating valve; the air regulating valve is provided with a negative pressure input port and a negative pressure output port, which are connected and connected, and the intermediate transition part is shaped like a bean hole; the water regulating valve is provided with a water flow input port and a water flow output port, which are connected and connected, and the intermediate transition part is shaped like a fan hole.

[0012] Compared with the prior art, this application has the following advantages:

[0013] 1. The present application features a limit design for the synchronous rotation potentiometer and adjusting pressure ring of the rotary valve. Rotating the pressure adjusting cap drives the adjusting rod to rotate. The adjusting rotation inlet on the adjusting rod body is connected to the adjusting rotation outlet at the front of the adjusting rod. The adjusting rotation inlet, adjusting rotation outlet and the pressure regulating valve inlet, pressure regulating valve outlet positions move axially relative to each other. At the same time, the pressure adjusting cap drives the potentiometer contacts to rotate to display the gear position, thus realizing precise feedback and adjustment of water flow and air pressure.

[0014] 2. The screw fixing and buckle design ensures structural stability and facilitates disassembly and assembly; the unique design of the pressure regulating valve structure achieves structural unity for both water flow and air pressure knob valves, while different openings are designed according to its own characteristics to ensure precise adjustment of water flow and air pressure; the sealing structure uses both rubber gaskets and rubber rings to effectively improve sealing performance. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in this application or the prior art, the drawings used in the description of this application or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0016] Figure 1This is a schematic diagram of the structure of the knob valve in this application;

[0017] Figure 2 These are three views of the knob valve of this application;

[0018] Figure 3 This is a schematic diagram of the adjustable rotation structure of this application;

[0019] Figure 4 These are three views of the adjusting rod of this application;

[0020] Figure 5 These are three views of the air regulating valve of this application;

[0021] Figure 6 These are three views of the water regulating valve of this application.

[0022] Explanation of reference numerals in the attached figures:

[0023] 1. Adjust the rotating structure;

[0024] 1.1 Adjust the rotary inlet; 1.2 Adjust the rotary outlet;

[0025] 101. Pressure adjusting cap; 102. Limit bolt; 103. Adjusting pressure ring; 104. Adjusting rod; 105. Rubber pad; 106. Rubber ring;

[0026] 2. Potentiometer adjustment plate;

[0027] 2.1 Potentiometer;

[0028] 3. Pressure regulating valve mounting plate;

[0029] 4. Pressure regulating valve;

[0030] 4.1 Pressure regulating valve inlet; 4.2 Pressure regulating valve outlet;

[0031] 401. Gas regulating valve; 402. Water regulating valve. Detailed Implementation

[0032] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0033] First, those skilled in the art should understand that these embodiments are merely for explaining the technical principles of this application and are not intended to limit the scope of protection of this application. Those skilled in the art can make adjustments as needed to adapt to specific application scenarios.

[0034] Secondly, it should be noted that in the description of this application, the terms "upper", "lower", "left", "right", "front", "back", "inner", "outer", etc., which indicate the direction or positional relationship, are based on the direction or positional relationship shown in the accompanying drawings. This is only for the convenience of description and does not indicate or imply that the device or component must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of this application.

[0035] like Figures 1 to 3 As shown in the figure, this application embodiment provides a rotary valve that displays the gear position and precisely adjusts the water flow and air pressure. It mainly includes an adjustment rotary structure 1, a potentiometer adjustment plate 2, a pressure regulating valve fixing plate 3, and a pressure regulating valve 4. The potentiometer adjustment plate 2 and the pressure regulating valve 4 are respectively fixed to the two end faces of the pressure regulating valve fixing plate 3 with screws. The adjustment rotary structure 1 passes through the potentiometer adjustment plate 2 and the pressure regulating valve fixing plate 3 and is connected to the pressure regulating valve 4.

[0036] Specifically, such as Figure 2 As shown, the adjusting rotation structure is provided with an adjusting rotation inlet 1.1 and an adjusting rotation outlet 1.2.

[0037] Specifically, such as Figure 2 and Figure 3 As shown, the adjusting rotation structure 1 includes a pressure adjusting cap 101, a limit bolt 102, an adjusting pressure ring 103, an adjusting rod 104, a rubber pad 105, and a rubber ring 106.

[0038] like Figure 3 and Figure 4 As shown, the front end of the adjusting rod 104 is provided with a notch and a pressure regulating outlet (i.e., Figure 3 One end of the connecting rubber pad 105 is the front end. The part of the front end of the adjusting rod 104 where the rubber pad 105 is installed is a notch, which becomes the adjusting rotation outlet 1.2 after the rubber pad 105 is installed. The rectangular hole on the rod body near the front end of the adjusting rod 104 is the pressure regulating outlet, which is the adjusting rotation inlet 1.1. For example, the notch is a circle with a flat platform, the pressure regulating outlet is rectangular, and there are limiting posts on both sides. The shape of the rubber pad 105 is adapted to the shape of the notch of the adjusting rod 104. The rubber pad 105 has a semi-circular hole that is adapted to the limiting post of the adjusting rod 104. The rod body of the adjusting rod 104 has a groove and a rubber ring 106 is inserted. The tail end of the adjusting rod 104 has a pressure regulating inlet (i.e., Figure 3 One end of the connecting limit plug 102 is the tail end, and the pressure regulating outlet is connected to the pressure regulating inlet to form a water flow and air pressure passage.

[0039] Specifically, the adjusting rod 104 is axially fixed to the pressure regulating valve fixing plate 3 by adjusting the pressure ring 103 through a step and screws. The above sealing structure design effectively improves the sealing performance of the knob valve of this application.

[0040] like Figure 1-3 As shown, the limit bolt 102 and the adjusting rod 104 are locked onto the ribs inside the pressure regulating cap 101 through the slots at their respective ends. At the same time, the pressure regulating cap 101 is locked onto the potentiometer 2.1 of the potentiometer adjusting plate 2 through its own buckle. The above buckle and slot installation and fixing design realizes the stability of the knob valve structure of this application and facilitates disassembly and assembly.

[0041] like Figure 1 , Figure 5 and Figure 6 As shown, the pressure regulating valve 4 includes an air regulating valve 401 and a water regulating valve 402; the air regulating valve 401 is provided with a negative pressure inlet and a negative pressure outlet, which are connected and connected. The intermediate transition part is shaped like a bean hole, as shown. Figure 5 As shown; the water regulating valve 402 is provided with a water inlet and a water outlet, which are connected. The intermediate transition part is shaped like a fan-shaped hole, as shown. Figure 6 As shown; the above structural design of the pressure regulating valve 4 achieves structural unification for both water flow and air pressure knob valves, while also employing different openings based on its own characteristics to ensure precise adjustment of water flow and air pressure. Figure 1 As shown, the pressure regulating valve 4 is provided with a pressure regulating valve inlet 4.1 and a pressure regulating valve outlet 4.2. Specifically, the pressure regulating valve inlet 4.1 and the pressure regulating valve outlet 4.2 are the negative pressure input port and negative pressure output port in the air regulating valve 401; and the water flow input port and water flow output port in the water regulating valve 402. The pressure regulating valve inlet 4.1 and the pressure regulating valve outlet 4.2 are long tubular in shape.

[0042] The working principle of the knob valve in this embodiment is as follows:

[0043] When using the rotary valve, rotating the pressure regulating cap 101 clockwise increases the water flow and air pressure. The position is determined by the indentation on the pressure regulating cap 101. Rotating the pressure regulating cap 101 causes the limit plug 102 and the adjusting rod 104 to rotate. The adjusting pressure ring 103 has a limit post, and the limit plug 102 has a fan-shaped groove. The two work together to limit the stroke. The adjusting rotation inlet 1.1 on the adjusting rod 104 is connected to the adjusting rotation outlet 1.2 at the front of the adjusting rod 104. The adjusting rotation inlet 1.1, adjusting rotation outlet 1.2, and the pressure regulating valve inlet 4.1 and pressure regulating valve outlet 4.2 move axially relative to each other. At the same time, the pressure regulating cap 101 causes the potentiometer 2.1 contact to rotate to indicate the position. The above-mentioned rotary valve synchronous rotation potentiometer 2.1 and adjusting pressure ring 103 limit design achieves precise feedback and adjustment of water flow and air pressure.

[0044] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A rotary valve that displays the gear position and precisely adjusts the water flow and air pressure, characterized in that, It includes an adjustment rotating structure (1), a potentiometer adjusting plate (2), a pressure regulating valve fixing plate (3), and a pressure regulating valve (4); the potentiometer adjusting plate (2) is fixed to the pressure regulating valve fixing plate (3) by screws; the potentiometer adjusting plate (2) and the pressure regulating valve (4) are respectively fixed on the two end faces of the pressure regulating valve fixing plate (3), and the adjustment rotating structure (1) passes through the potentiometer adjusting plate (2), the pressure regulating valve fixing plate (3), and connects to the pressure regulating valve (4).

2. The rotary valve for displaying gear positions and precisely adjusting water flow and air pressure according to claim 1, characterized in that, The adjusting rotation structure (1) includes a pressure adjusting cap (101), a limiting bolt (102), an adjusting pressure ring (103), an adjusting rod (104), a rubber pad (105), and a rubber ring (106). The adjusting rod (104) has a notch at the front end to accommodate the rubber pad (105) and a groove on the rod body to accommodate the rubber ring (106). The adjusting pressure ring (103) locks the axial direction of the rod to the pressure regulating valve fixing plate (3) with screws. The limiting bolt (102) and the adjusting rod (104) are engaged in the ribs inside the pressure adjusting cap (101) through the slots at their respective ends. At the same time, the pressure adjusting cap (101) is engaged in the potentiometer (2.1) of the potentiometer adjusting plate (2) by its own snap-fit.

3. The rotary valve for displaying gear positions and precisely adjusting water flow and air pressure according to claim 2, characterized in that, The adjusting rotation structure is provided with an adjusting rotation inlet (1.1) and an adjusting rotation outlet (1.2). The adjusting rotation inlet (1.1) on the adjusting rod (104) is connected to the adjusting rotation outlet (1.2) at the front end of the adjusting rod (104). The pressure regulating valve (4) is provided with a pressure regulating valve inlet (4.1) and a pressure regulating valve outlet (4.2). Rotating the pressure regulating cap (101) causes the adjusting rod (104) to rotate, and the positions of the adjusting rotating inlet (1.1), adjusting rotating outlet (1.2) and the pressure regulating valve inlet (4.1) and pressure regulating valve outlet (4.2) move axially relative to each other. At the same time, the pressure regulating cap (101) causes the potentiometer (2.1) contacts to rotate to display the gear position.

4. The rotary valve for displaying gear positions and precisely adjusting water flow and air pressure according to claim 2, characterized in that, The front end of the adjusting rod (104) is provided with a notch and a pressure regulating outlet, and the rod body is provided with a pressure regulating inlet. The pressure regulating outlet is connected to the pressure regulating inlet. The notch is a circle with a flat platform, and the pressure regulating outlet is rectangular with limiting posts on both sides. The shape of the rubber pad (105) is adapted to the shape of the notch of the adjusting rod (104). The rubber pad (105) is provided with a semi-circular hole, which is adapted to the limiting posts of the adjusting rod (104).

5. The rotary valve for displaying gear positions and precisely adjusting water flow and air pressure according to claim 2, characterized in that, The adjusting pressure ring (103) is provided with a limiting post, and the limiting bolt (102) is provided with a fan-shaped groove. The two cooperate with each other to achieve stroke limitation.

6. The rotary valve for displaying gear positions and precisely adjusting water flow and air pressure according to claim 2, characterized in that, The pressure regulating valve (4) includes an air regulating valve (401) and a water regulating valve (402); the air regulating valve (401) is provided with a negative pressure inlet and a negative pressure outlet, which are connected and connected, and the intermediate transition part is shaped like a bean hole; the water regulating valve (402) is provided with a water inlet and a water outlet, which are connected and connected, and the intermediate transition part is shaped like a fan hole.

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