A water pressure detection device for a reverse osmosis membrane

Abstract

The utility model discloses a water pressure detection device of reverse osmosis membrane relates to water pressure detection technical field, including the connecting sleeve for the sealing sleeve of being equipped in the both ends of reverse osmosis membrane cover, and the other end of connecting sleeve is connected and is equipped with the flow -through pipe, is equipped with water pressure gauge on the flow -through pipe, and the connecting sleeve is sealed screw thread connection with the end face of reverse osmosis membrane cover. The utility model is installed to this water pressure detection device, through the fastening ring of being equipped with one in advance in the outside sleeve of reverse osmosis membrane cover near the end face, make it and the firm connection between reverse osmosis membrane cover, take the screw thread of connecting sleeve and set in the end face of reverse osmosis membrane cover until the firm connection, the limiting sleeve rotation fine adjustment outside connecting sleeve, until the clamping strip on the limiting sleeve and the clamping piece corresponding set, promote the limiting sleeve to the fastening ring direction, until the one end clamping strip slides into the clamping piece, promote until the clamping piece in the clamping strip cannot move, and the connection between connecting sleeve and the end face of reverse osmosis membrane cover is more closely, provides the sealing guarantee for water pressure detection effect.

Description

Technical Field

[0001] This utility model relates to the field of water pressure testing technology, and in particular to a water pressure testing device for a reverse osmosis membrane. Background Technology

[0002] A reverse osmosis membrane is an artificial semi-permeable membrane with specific characteristics, made to mimic biological semi-permeable membranes. It is the core component of reverse osmosis technology. The principle of reverse osmosis technology is that, under pressure higher than the osmotic pressure of the solution, other substances cannot pass through the semi-permeable membrane, thus separating them from water. The membrane pore size of a reverse osmosis membrane is extremely small, therefore it can effectively remove dissolved salts, colloids, microorganisms, organic matter, etc. from water.

[0003] When using a reverse osmosis membrane, it is necessary to test and compare the water pressure entering and exiting the membrane. If the water pressure exiting the membrane is lower than the water pressure entering the membrane, the membrane is damaged and needs to be repaired.

[0004] For example, a water pressure testing device for a reverse osmosis membrane, as described in "CN222348748U", relates to the field of water pressure testing technology. This device includes a support frame; guide plates are welded to both ends of the support frame, and a sliding rod is slidably connected to each guide plate, with the two sliding rods facing each other; a fixing plate is bolted to the end of each sliding rod furthest from the support frame, and the fixing plate has a circular hole for easy mounting of the water pressure testing components; a mounting bracket is provided between the two water pressure testing components. In this invention, the two sliding rods move on their respective fixing plates, thereby moving the fixing plates and indirectly moving the water pressure testing components at both ends. This facilitates the connection of reverse osmosis membranes of different lengths, and the water pressure testing components can be more easily connected to pipes on both sides, making it more convenient to use.

[0005] However, in the existing technology, as shown in the aforementioned patent, the water pressure detection component is limited by springs sliding at both ends of the slide rod. Although the spring setting can increase the tightness of the connection, before installation, the operator generally needs to pull the fixing plates at both ends outwards in opposite directions at the same time so that the two connecting tubes are initially fitted onto both ends of the reverse osmosis membrane, and then thread each end. Since the reverse osmosis membrane is generally quite long, it is difficult for one person to pull the two connecting tubes to both ends of the reverse osmosis membrane at the same time. Therefore, at least two people are needed to assist in the operation, which is quite inconvenient during the initial installation. Utility Model Content

[0006] In view of the aforementioned existing problems, this utility model is proposed.

[0007] The purpose of this invention is to solve the problem that the installation steps of the water pressure detection component and the reverse osmosis membrane are inconvenient in the existing technology.

[0008] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0009] This utility model provides a water pressure testing device for a reverse osmosis membrane, comprising a connecting sleeve for sealingly fitting both ends of a reverse osmosis membrane sleeve, a flow pipe connected to the other end of the connecting sleeve, a water pressure gauge mounted on the flow pipe, a threaded connection between the connecting sleeve and the end face of the reverse osmosis membrane sleeve, a limiting sleeve slidably fitted on the outer side of the connecting sleeve, a groove for the flow pipe to pass through the center of the limiting sleeve, a fastening ring on the outer wall of the end face of the reverse osmosis membrane sleeve, a locking block on the fastening ring, and a locking strip near the end of the limiting sleeve near the fastening ring that engages with the locking block. The distance between the limiting sleeve and the fastening ring is adjustable. When installing this water pressure testing device, by pre-setting a groove near the end face of the reverse osmosis membrane sleeve... The side sleeve is equipped with a fastening ring to securely connect it to the reverse osmosis membrane sleeve. The connecting sleeve is then threaded and fitted onto the end face of the reverse osmosis membrane sleeve until a secure connection is achieved. The limiting sleeve on the outside of the connecting sleeve is then rotated for fine adjustment until the locking strip on the limiting sleeve aligns with the locking block. The limiting sleeve is then pushed towards the fastening ring until one end of the locking strip engages and slides into the locking block. This continues until the locking block cannot move further within the locking strip. At this point, the connection between the connecting sleeve and the end face of the reverse osmosis membrane sleeve is tighter, providing a seal for water pressure testing. Since both ends of the reverse osmosis membrane sleeve are installed independently, operation can be performed by a single person. Finally, water pressure gauges located at both ends of the reverse osmosis membrane sleeve can be used to test the water pressure entering and exiting the reverse osmosis membrane.

[0010] Furthermore, the fastening ring includes a half-ring and a bolt. There are two half-rings arranged symmetrically. The end faces of the two half-rings are rotatably connected, and the other ends are connected by bolts. When installing the fastening ring on the reverse osmosis membrane sleeve, the two half-rings are placed on the outside of the reverse osmosis membrane sleeve at appropriate positions, and then the two half-rings are closed. The bolts are then used to fasten their end faces to ensure the fastening ring is secure on the reverse osmosis membrane sleeve.

[0011] Furthermore, the locking blocks are provided in multiple and evenly distributed on the outer side of the semi-ring. An inner groove is formed at the center of the locking block, and a limiting plate is rotatably provided on one side of the inner groove. The locking strip is a strip-shaped structure, and multiple teeth are evenly provided on the side of the locking strip facing the limiting plate. The teeth fit snugly with the limiting plate. When installing the locking blocks and locking strips, by pushing the locking strip into the locking blocks, each tooth can engage with the limiting plate. After engagement, the locking strip cannot be pulled back in the locking blocks, achieving stable positioning. This, in turn, compresses the internal connecting sleeve to tightly fit the end face of the reverse osmosis membrane sleeve, ensuring a seal.

[0012] Furthermore, an assembly groove is provided in the engaging block on one side of the inner groove. The limiting plate is rotatably disposed at the end of the assembly groove facing the engaging strip. The limiting plate is assembled and connected to the assembly groove by a first spring. When the tooth groove enters the inner groove, the tooth groove squeezes the limiting plate, causing the limiting plate to fit into the assembly groove. The tooth groove can pass smoothly through the limiting plate. After the limiting plate loses the squeeze of the tooth groove, the first spring pushes the limiting plate to unfold. The end face of the unfolded limiting plate abuts against the tooth groove that has passed through, making it difficult to pull back. By continuing to push the engaging strip into the engaging block, the distance between the limiting sleeve and the fastening ring can be gradually shortened.

[0013] Furthermore, a first magnet is provided inside the locking block at the assembly slot, and a second magnet is provided on the limiting plate to attract and interact with the first magnet. The first magnet is electrically connected to an external power source. When disassembling the locking block and the locking strip, the first magnet can be energized to generate magnetism, and the second magnet will attract and interact with the first magnet, so that the limiting plate is tightly fitted inside the assembly slot. At this time, the locking strip can move smoothly inside the inner slot and can be directly pulled out from the locking block. A battery can be provided inside the fastening ring, and the first magnet can be powered by the battery.

[0014] Furthermore, a second spring is provided on the end face of the limiting sleeve. The end of the second spring away from the limiting sleeve abuts against the end face of the connecting sleeve. With the second spring, when the limiting sleeve is assembled, the second spring can increase the compressive force on the connecting sleeve.

[0015] Furthermore, the second spring is provided with end plates at both ends. One end plate is rotatably connected to the end face of the limiting sleeve, and the other end plate abuts against the end face of the connecting sleeve and its inner ring is slidably adapted to the outer wall of the flow tube. The second spring is sleeved on the outside of the flow tube. By setting the two end plates, the contact area between the second spring and the limiting sleeve and the connecting sleeve is increased.

[0016] The beneficial effects of this utility model are:

[0017] This invention features a pre-installed fastening ring on the outer side of the reverse osmosis membrane sleeve near its end face, ensuring a secure connection. The connecting sleeve is then threaded onto the end face of the reverse osmosis membrane sleeve until a firm connection is achieved. The limiting sleeve outside the connecting sleeve is then rotated and finely adjusted until the engaging strip on the limiting sleeve aligns with the engaging block. The limiting sleeve is then pushed towards the fastening ring until one end of the engaging strip engages and slides into the engaging block. This is continued until the engaging block cannot move further within the engaging strip. At this point, the connection between the connecting sleeve and the end face of the reverse osmosis membrane sleeve is tighter, providing a sealing guarantee for water pressure testing. Furthermore, the reverse osmosis membrane sleeve can be installed independently at both ends, allowing for single-person operation and simplifying the installation process. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 A schematic diagram of the assembly structure of a water pressure testing device for a reverse osmosis membrane and a reverse osmosis membrane assembly provided by this utility model;

[0020] Figure 2 A schematic diagram showing the separation state of the fastening ring and connecting sleeve of a water pressure testing device for a reverse osmosis membrane provided by this utility model;

[0021] Figure 3 A schematic diagram showing the separation state of the connecting sleeve and the limiting sleeve of a water pressure testing device for a reverse osmosis membrane provided by this utility model;

[0022] Figure 4 This utility model provides a schematic diagram of the assembly structure of the locking block and locking strip of a water pressure testing device for a reverse osmosis membrane.

[0023] Legend:

[0024] 1. Reverse osmosis membrane sleeve; 101. Fastening ring; 102. Locking block; 103. Locking strip; 104. Gear; 2. Connecting sleeve; 201. Limiting sleeve; 211. Second spring; 212. End plate; 202. Sleeve groove; 3. Flow pipe; 4. Water pressure gauge; 5. Half ring; 6. Bolt; 7. Inner groove; 701. Limiting plate; 702. Assembly groove; 8. First spring; 9. First magnet; 10. Second magnet. Detailed Implementation

[0025] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0026] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0027] Secondly, as used herein, "an embodiment" or "embodiment" refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in an embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0028] Please see Figures 1-4 This utility model provides a technical solution: a water pressure testing device for a reverse osmosis membrane, including a connecting sleeve 2 for sealing and fitting at both ends of a reverse osmosis membrane sleeve 1, a flow pipe 3 connected to the other end of the connecting sleeve 2, a water pressure gauge 4 provided on the flow pipe 3, the connecting sleeve 2 being threadedly connected to the end face of the reverse osmosis membrane sleeve 1, a limiting sleeve 201 being slidably fitted on the outside of the connecting sleeve 2, a groove 202 for the flow pipe 3 to pass through the center of the limiting sleeve 201, a fastening ring 101 being provided on the outer wall of the end face of the reverse osmosis membrane sleeve 1, a locking block 102 being provided on the fastening ring 101, a locking strip 103 being provided on one end of the limiting sleeve 201 near the fastening ring 101 to fit the locking block 102, and the distance between the limiting sleeve 201 and the fastening ring 101 being adjustable.

[0029] like Figures 1-4 As shown, the fastening ring 101 includes a half-ring 5 and a bolt 6. There are two half-rings 5 ​​arranged symmetrically. The end faces of the two half-rings 5 ​​are rotatably connected, and the other ends are assembled and connected by the bolt 6. When installing the fastening ring 101 and the reverse osmosis membrane sleeve 1, the two half-rings 5 ​​are placed on the outside of the reverse osmosis membrane sleeve 1 at appropriate positions, and then the two half-rings 5 ​​are closed. The bolt 6 is used to fasten their end faces to ensure the fastening ring 101 is firmly attached to the reverse osmosis membrane sleeve 1.

[0030] like Figures 1-4 As shown, the locking block 102 has multiple locking blocks evenly arranged on the outside of the semi-ring 5. An inner groove 7 is opened at the center of the locking block 102. A limiting plate 701 is rotatably provided on one side of the inner groove. The locking strip 103 is a strip-shaped structure. Multiple teeth 104 are evenly provided on the side of the locking strip 103 facing the limiting plate 701. The teeth 104 are properly engaged with the limiting plate 701. When installing the locking block 102 and the locking strip 103, by pushing the locking strip 103 into the locking block 102, each tooth 104 can be engaged with the limiting plate 701. After being engaged, the locking strip 103 cannot be pulled back in the locking block 102, achieving stable positioning. This, in turn, squeezes the internal connecting sleeve 2 to tightly fit the end face of the reverse osmosis membrane sleeve 1, ensuring sealing.

[0031] like Figures 1-4As shown, an assembly groove 702 is provided in the locking block 102 on one side of the inner groove 7. The limiting plate 701 is rotatably set at the end of the assembly groove 702 facing the locking strip 103. The limiting plate 701 is assembled and connected to the assembly groove 702 by the first spring 8. When the toothed groove 104 enters the inner groove 7, the toothed groove 104 squeezes the limiting plate 701, so that the limiting plate 701 fits into the assembly groove 702. The toothed groove 104 can pass smoothly through the limiting plate 701. After the limiting plate 701 loses the squeeze of the toothed groove 104, the first spring 8 pushes the limiting plate 701 to unfold. The end face of the unfolded limiting plate 701 abuts against the toothed groove 104 that has passed through, making it difficult to pull back. By continuing to push the locking strip 103 into the locking block 102, the distance between the limiting sleeve 201 and the fastening ring 101 can be gradually shortened.

[0032] like Figures 1-4 As shown, a first magnet 9 is provided in the locking block 102 at the assembly groove 702, and a second magnet 10 is provided on the limiting plate 701 that is attracted to the first magnet 9. The first magnet 9 is electrically connected to an external power source. When disassembling the locking block 102 and the locking strip 103, the first magnet 9 can be energized to generate magnetism, and the second magnet 10 will attract to the first magnet 9, so that the limiting plate 701 is tightly fitted in the assembly groove 702. At this time, the locking strip 103 can move smoothly in the inner groove 7, and the locking strip 103 can be directly pulled out from the locking block 102. A battery can be provided in the fastening ring 101, and the first magnet 9 can be powered by the battery.

[0033] like Figures 1-4 As shown, a second spring 211 is provided on the end face of the limiting sleeve 201. The end of the second spring 211 away from the limiting sleeve 201 abuts against the end face of the connecting sleeve 2. Through the provided second spring 211, when the limiting sleeve 201 is assembled, the second spring 211 can increase the squeezing force on the connecting sleeve 2.

[0034] like Figures 1-4 As shown, the second spring 211 has end plates 212 at both ends. One end plate 212 is rotatably connected to the end face of the limiting sleeve 201, and the other end plate 212 abuts against the end face of the connecting sleeve 2 and its inner ring is slidably adapted to the outer wall of the flow tube 3. The second spring 211 is sleeved on the outside of the flow tube 3. By setting the two end plates 212, the contact area between the second spring 211 and the limiting sleeve 201 and the connecting sleeve 2 is increased.

[0035] Working principle: When installing this water pressure testing device, a fastening ring 101 is pre-fitted on the outer side of the reverse osmosis membrane sleeve 1 near the end face to ensure a firm connection. Then, the connecting sleeve 2 is threaded onto the end face of the reverse osmosis membrane sleeve 1 until the connection is secure. Next, the limiting sleeve 201 outside the connecting sleeve 2 is rotated and finely adjusted until the locking strip 103 on the limiting sleeve 201 corresponds to the locking block 102. Then, the limiting sleeve 201 is pushed towards the fastening ring 101 until one end of the locking strip 103 engages and slides into the locking block 102. Continue pushing until the locking block 102 cannot move within the locking strip 103. At this point, the connection between the connecting sleeve 2 and the end face of the reverse osmosis membrane sleeve 1 is tighter, providing a sealing guarantee for the water pressure testing effect. Since both ends of the reverse osmosis membrane sleeve 1 are installed separately, a single person can operate it. Finally, the water pressure gauges 4 located at both ends of the reverse osmosis membrane sleeve 1 can be used to test the water pressure entering and leaving the reverse osmosis membrane.

[0036] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A water pressure testing device for a reverse osmosis membrane, comprising connecting sleeves (2) for sealing and fitting at both ends of a reverse osmosis membrane sleeve (1), wherein a flow pipe (3) is connected to the other end of the connecting sleeves (2), and a water pressure gauge (4) is provided on the flow pipe (3), characterized in that: The connecting sleeve (2) is connected to the end face of the reverse osmosis membrane sleeve (1) with a sealing thread. The outer side of the connecting sleeve (2) is provided with a limiting sleeve (201). The center of the limiting sleeve (201) is provided with a sleeve groove (202) for passing through the flow pipe (3). The outer wall of the end face of the reverse osmosis membrane sleeve (1) is provided with a fastening ring (101). The fastening ring (101) is provided with a locking block (102). The end of the limiting sleeve (201) near the fastening ring (101) is provided with a locking strip (103) that fits with the locking block (102). The distance between the limiting sleeve (201) and the fastening ring (101) is adjustable.

2. The water pressure testing device for a reverse osmosis membrane according to claim 1, characterized in that, The fastening ring (101) includes a half ring (5) and a bolt (6). There are two half rings (5) arranged symmetrically. The two half rings (5) are rotatably connected to each other at their end faces and are assembled and connected to each other by bolts (6).

3. The water pressure testing device for a reverse osmosis membrane according to claim 2, characterized in that, The locking block (102) is provided in multiple and evenly arranged on the outside of the semi-ring (5). An inner groove (7) is provided at the center of the locking block (102). A limiting plate (701) is rotatably provided on one side of the inner groove (7). The locking strip (103) is a strip structure. The locking strip (103) facing the limiting plate (701) is provided with multiple teeth (104) evenly. The teeth (104) are fitted and matched with the limiting plate (701).

4. The water pressure testing device for a reverse osmosis membrane according to claim 3, characterized in that, An assembly groove (702) is provided in the locking block (102) on one side of the inner groove (7). The limiting plate (701) is rotatably disposed at one end of the assembly groove (702) facing the locking strip (103). The limiting plate (701) is assembled and connected to the assembly groove (702) by the first spring (8).

5. The water pressure testing device for a reverse osmosis membrane according to claim 4, characterized in that, The engagement block (102) at the assembly slot (702) is provided with a first magnet (9), and the limiting plate (701) is provided with a second magnet (10) that is attracted to the first magnet (9). The first magnet (9) is electrically connected to an external power source.

6. The water pressure testing device for a reverse osmosis membrane according to claim 5, characterized in that, The end face of the limiting sleeve (201) is provided with a second spring (211), and the end of the second spring (211) away from the limiting sleeve (201) abuts against the end face of the connecting sleeve (2).

7. The water pressure testing device for a reverse osmosis membrane according to claim 6, characterized in that, The second spring (211) has end plates (212) at both ends. One end plate (212) is rotatably connected to the end face of the limiting sleeve (201), and the other end plate (212) abuts against the end face of the connecting sleeve (2) and its inner ring slides and adapts to the outer wall of the flow pipe (3). The second spring (211) is sleeved on the outside of the flow pipe (3).

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