Inlet water pressure adjusting device of reverse osmosis equipment
By simplifying the structure of the reverse osmosis equipment's inlet water pressure regulating device, water pressure regulation is achieved using components such as sleeves, sealing caps, and threaded rods. This solves the problems of complexity and high maintenance costs of existing devices, and enables convenient water pressure control and rapid fault repair.
Patent Information
- Application Number
- CN202520381937.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-06
- Publication Date
- 2026-01-13
- Estimated Expiration
- 2035-03-06
AI Technical Summary
The existing reverse osmosis equipment has a complex inlet water pressure regulation device with a large number of precision electronic components, resulting in high maintenance costs and difficulties in fault location and repair.
A water pressure regulating device including a connecting pipe and an adjusting mechanism was designed. It utilizes a sleeve, a sealing cover, a threaded rod, and a pressure relief component. Water pressure is regulated and relieved by rotating the threaded rod and the disc, which simplifies the structure and improves convenience.
It enables flexible water pressure adjustment and rapid fault location and repair, reducing operating costs and improving practicality.
Smart Images

Figure CN223788336U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of water pressure regulation technology, and in particular to a water pressure regulation device for the inlet of a reverse osmosis equipment. Background Technology
[0002] Reverse osmosis (RO) equipment is a pressure-driven membrane separation technology mainly used for water purification. Its core principle is to apply pressure higher than the osmotic pressure of the aqueous solution, forcing water molecules to pass through a semi-permeable membrane (i.e., the reverse osmosis membrane), while impurities in the water, such as ions, organic matter, and bacteria, are trapped on the feed side of the membrane, thereby achieving the purpose of water purification. The feed water pressure regulating device is an important component of the reverse osmosis equipment. If the feed water pressure is too low, starting the high-pressure pump will cause the high-pressure pump to run dry, resulting in damage to the high-pressure pump and affecting the company's normal production. When the feed water pressure is too high, the high-pressure pump will instantly draw a large amount of water into the reverse osmosis equipment, which can easily rupture the RO membrane instantly, causing damage to the RO membrane.
[0003] Common reverse osmosis equipment feed water pressure regulating devices have a relatively complex structure with many precision electronic components and functional accessories. This greatly increases the cost of use and maintenance. Furthermore, in actual use, once a fault occurs, it is impossible to quickly locate and repair the cause of the fault, resulting in serious lack of practicality. Therefore, we propose a reverse osmosis equipment feed water pressure regulating device. Utility Model Content
[0004] The purpose of this invention is to address the shortcomings of existing technologies. Common reverse osmosis equipment has a complex inlet water pressure regulating device with many precision electronic components and functional accessories, which greatly increases the cost of use and maintenance. Furthermore, in actual use, once a fault occurs, it is impossible to quickly locate and repair the cause of the fault, resulting in serious lack of practicality.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] A reverse osmosis equipment inlet water pressure regulating device includes a connecting pipe, and an adjusting mechanism is installed at the top of the connecting pipe;
[0007] The adjusting mechanism includes a sleeve welded to the top of the connecting pipe. A pressure gauge is installed on the left side of the sleeve near the bottom. A sealing cap is threaded to the top of the sleeve. An adjusting component is threaded to the top of the sealing cap through the bottom. A pressure relief component is fixedly installed at the bottom of the adjusting component. Limiting blocks are symmetrically welded to the left and right sides inside the sleeve and at the bottom of the pressure relief component.
[0008] As a preferred embodiment of this utility model, the right end of the connecting pipe is provided with a water inlet, and the left end of the connecting pipe is provided with a water outlet.
[0009] The technical effect of adopting the above-mentioned further solution is that the water flows into the connecting pipe through the inlet, and after being pressurized by the regulating mechanism, it flows into the external reverse osmosis equipment through the outlet.
[0010] As a preferred embodiment of this utility model, an observation window is provided on the front of the sleeve.
[0011] The technical advantage of adopting the above-mentioned further solution is that the observation window makes it easier for users to observe the internal condition of the sleeve, thus improving ease of use.
[0012] As a preferred embodiment of this utility model, an air inlet is provided at the top of the sealing cap near the left side, and a sealing ring is adhered to the bottom of the sealing cap where it contacts the sleeve.
[0013] The technical effect of adopting the above-mentioned further solution is that air can be injected and pressurized into the sleeve through the air inlet, and the sealing ring can prevent gas from overflowing, thereby improving the sealing effect.
[0014] As a preferred embodiment of this utility model, the adjusting component includes a threaded rod, which is threadedly connected to the sealing cover, and an adjusting rod is rotatably connected inside the threaded rod.
[0015] The technical effect of adopting the above-mentioned further solution is that by rotating the threaded rod, the piston can be driven to move up and down, thereby compressing the air inside the sleeve to pressurize the water flow, and conversely, it can dilute the air to achieve the effect of reducing pressure, thus achieving the purpose of regulating water pressure.
[0016] As a preferred embodiment of this utility model, a knob is welded to the top of the adjusting rod.
[0017] The technical advantage of adopting the above-mentioned further solution is that the knob makes it easier for users to rotate the adjustment lever, thus improving ease of use.
[0018] As a preferred embodiment of this utility model, the pressure relief assembly includes a piston, which is slidably connected to a sleeve and fixedly connected to a threaded rod. A disc is rotatably connected inside the piston, and the disc is welded to an adjusting rod.
[0019] The technical advantage of adopting the above-mentioned further solution is that by welding the disc to the adjusting rod, the disc can be rotated by rotating the adjusting rod, thus improving ease of use.
[0020] As a preferred embodiment of this utility model, the top of the piston extends through the bottom and has several first air holes around its periphery, and the top of the disc extends through the bottom and has second air holes corresponding to the first air holes.
[0021] The technical effect of adopting the above-mentioned further solution is that when the air pressure below the piston is too high, by rotating the adjusting rod, the adjusting rod drives the disc to rotate inside the piston, thereby causing the first air hole and the second air hole to open in a misaligned manner, so that the space above and below the piston can be connected, achieving the purpose of pressure relief.
[0022] Compared with the prior art, the beneficial effects of this utility model are:
[0023] In this invention, the design of the connecting pipe and the adjusting mechanism allows the piston to move downward by rotating the threaded rod, thereby pressurizing the air below the piston in the sleeve and increasing the water pressure. By misaligning the first and second air holes of the rotating disc, the space above and below the piston is connected, achieving the purpose of depressurization. Compared with traditional water pressure regulating devices, this device has a simple structure, greatly reducing the cost of use. Furthermore, in case of failure, the faulty part can be quickly identified and repaired, effectively improving its practicality. Attached Figure Description
[0024] Figure 1 A schematic diagram of the overall structure of the reverse osmosis equipment inlet water pressure regulating device provided by this utility model;
[0025] Figure 2 A frontal anatomical view of the overall structure of the reverse osmosis equipment inlet water pressure regulating device provided by this utility model;
[0026] Figure 3 Anatomical view of the overall side structure of the reverse osmosis equipment inlet water pressure regulating device provided by this utility model;
[0027] Figure 4 Anatomical diagram of the piston top structure of the reverse osmosis equipment inlet water pressure regulating device provided by this utility model.
[0028] Legend: 1. Connecting pipe; 101. Inlet; 102. Outlet; 2. Adjusting mechanism; 201. Sleeve; 2011. Observation window; 202. Pressure gauge; 203. Sealing cover; 2031. Air inlet; 204. Adjusting component; 2041. Threaded rod; 2042. Adjusting rod; 205. Pressure relief component; 2051. Piston; 2052. Disc; 2053. First air hole; 2054. Second air hole; 206. Limiting block. Detailed Implementation
[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.
[0030] To facilitate understanding of this utility model, a more comprehensive description of this utility model will be provided below with reference to relevant embodiments, and several embodiments of this utility model will be given. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of this utility model more thorough and complete.
[0031] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.
[0032] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.
[0033] Example 1
[0034] like Figure 1-4 As shown, this utility model provides a technical solution: a reverse osmosis equipment inlet water pressure regulating device, including a connecting pipe 1, an regulating mechanism 2 installed at the top of the connecting pipe 1, the regulating mechanism 2 including a sleeve 201, the sleeve 201 being welded to the top of the connecting pipe 1, a pressure gauge 202 installed on the left side of the sleeve 201 near the bottom, the pressure gauge 202 allows real-time monitoring of the internal pressure of the sleeve 201, improving ease of use, a sealing cap 203 threaded to the top of the sleeve 201, an regulating component 204 threaded through the top of the sealing cap 203 to the bottom, a pressure relief component 205 fixedly installed at the bottom of the regulating component 204, limit blocks 206 symmetrically welded on the left and right sides inside the sleeve 201 and at the bottom of the pressure relief component 205, the limit blocks 206 can limit the piston 2051, preventing excessive descent and obstruction of the pressure gauge 202.
[0035] Example 2
[0036] like Figure 1-4 As shown, the right end of the connecting pipe 1 has an inlet 101, and the left end of the connecting pipe 1 has an outlet 102. Water flows into the connecting pipe 1 through the inlet 101, and after being pressurized by the regulating mechanism 2, it flows into the external reverse osmosis equipment through the outlet 102. The front of the sleeve 201 has an observation window 2011, which allows the user to easily observe the internal condition of the sleeve 201, improving ease of use. The top of the sealing cover 203 has an air inlet 2031 near the left side, and the bottom of the sealing cover 203 is connected to the sleeve 201. A sealing ring is bonded at the contact point 01. Air can be pressurized into the sleeve 201 through the air inlet 2031. The sealing ring prevents gas leakage and improves the sealing effect. The adjusting component 204 includes a threaded rod 2041, which is threadedly connected to the sealing cover 203. An adjusting rod 2042 is rotatably connected inside the threaded rod 2041. Rotating the threaded rod 2041 drives the piston 2051 to move up and down, thereby compressing the air inside the sleeve 201 to pressurize the water flow. Conversely, moving it dilutes the air to reduce pressure, thus achieving the adjusting effect. To save water pressure, a knob is welded to the top of the adjusting rod 2042, allowing the user to easily rotate the adjusting rod 2042 and improving ease of use. The pressure relief assembly 205 includes a piston 2051, which is slidably connected to the sleeve 201 and fixedly connected to the threaded rod 2041. A disc 2052 is rotatably connected inside the piston 2051 and welded to the adjusting rod 2042. Through the welding of the disc 2052 to the adjusting rod 2042, rotating the adjusting rod 2042 drives the disc 2052 to rotate, improving water pressure relief. For ease of use, the top of piston 2051 extends through the bottom and has several first air holes 2053 around its periphery. The top of disc 2052 extends through the bottom and has second air holes 2054 corresponding to the first air holes 2053. When the air pressure below piston 2051 is too high, the adjusting rod 2042 is rotated to make the disc 2052 rotate inside piston 2051, thereby causing the first air holes 2053 and second air holes 2054 to open in a staggered manner, which can connect the space above and below piston 2051 and achieve the purpose of pressure relief.
[0037] The working process of this utility model is as follows: When adjusting the water pressure of the reverse osmosis equipment inlet water pressure regulating device, firstly, rotating the adjusting rod 2042 drives the disc 2052 to rotate, causing the first air hole 2053 and the second air hole 2054 to open in a staggered manner. Then, using an external air-filling device, airflow is injected into the sleeve 201 through the air-filling port 2031. At this time, the space above and below the piston 2051 is in a connected state. The threaded rod 2041 can be rotated to move the piston 2051 upward. After moving to the first position, the adjusting rod 2042 is reversed to make the first air hole 2053 and the second air hole 2054 coincide, closing the connection between the upper and lower parts of the piston 2051. Then, the threaded rod 2041 is reversed to move the piston 2051 downward. The air below piston 2051 is pressurized to pressurize the water flow. When the pressure is too high and needs to be released, the above steps can be repeated to open the first air hole 2053 and the second air hole 2054 in a staggered manner to release the air and achieve the effect of reducing pressure. Alternatively, the air inlet 2031 can be opened first to move piston 2051 upward to empty the air in the space above piston 2051. After resealing the air inlet 2031, the first air hole 2053 and the second air hole 2054 can be opened in a staggered manner to release the pressure quickly or at a high value. Compared with traditional water pressure regulating devices, this equipment has a simple structure, which greatly reduces the cost of use. In case of failure, the faulty part can be quickly locked and repaired, which effectively improves its practicality.
[0038] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A reverse osmosis equipment inlet water pressure regulating device, including a connecting pipe (1), characterized in that: An adjustment mechanism (2) is installed at the top of the connecting pipe (1); The adjusting mechanism (2) includes a sleeve (201), which is welded to the top of the connecting pipe (1). A pressure gauge (202) is installed on the left side of the sleeve (201) near the bottom. A sealing cap (203) is threaded to the top of the sleeve (201). An adjusting component (204) is threaded through the bottom of the sealing cap (203). A pressure relief component (205) is fixedly installed at the bottom of the adjusting component (204). Limiting blocks (206) are symmetrically welded to the left and right sides inside the sleeve (201) and at the bottom of the pressure relief component (205).
2. The reverse osmosis equipment inlet water pressure regulating device according to claim 1, characterized in that: The connecting pipe (1) has an inlet (101) on the right side and an outlet (102) on the left side.
3. The reverse osmosis equipment inlet water pressure regulating device according to claim 1, characterized in that: The sleeve (201) has an observation window (2011) on its front side.
4. The reverse osmosis equipment inlet water pressure regulating device according to claim 1, characterized in that: An air inlet (2031) is provided at the top of the sealing cap (203) near the left side, and a sealing ring is bonded to the bottom of the sealing cap (203) where it contacts the sleeve (201).
5. The reverse osmosis equipment inlet water pressure regulating device according to claim 1, characterized in that: The adjusting assembly (204) includes a threaded rod (2041) which is threadedly connected to the sealing cover (203), and an adjusting rod (2042) is rotatably connected inside the threaded rod (2041).
6. The reverse osmosis equipment inlet water pressure regulating device according to claim 5, characterized in that: A knob is welded to the top of the adjusting rod (2042).
7. The reverse osmosis equipment inlet water pressure regulating device according to claim 1, characterized in that: The pressure relief assembly (205) includes a piston (2051), which is slidably connected to a sleeve (201) and fixedly connected to a threaded rod (2041). A disc (2052) is rotatably connected inside the piston (2051), and the disc (2052) is welded to an adjusting rod (2042).
8. The reverse osmosis equipment inlet water pressure regulating device according to claim 7, characterized in that: The top of the piston (2051) extends through the bottom and has several first air holes (2053) around its periphery. The top of the disc (2052) extends through the bottom and has second air holes (2054) corresponding to the first air holes (2053).