Quick-release reverse osmosis glass fiber reinforced plastic membrane shell

Abstract

This invention provides a quick-release reverse osmosis fiberglass membrane housing, relating to the field of filtration equipment technology. The reverse osmosis membrane housing includes a shell, a membrane housing end cap, an elastic element, an elastic sealing ring, and a pressure regulating element. The shell has a port; the membrane housing end cap has a sealing groove and can be installed at the port; the elastic element is installed in the sealing groove and is configured to seal the opening of the sealing groove, forming a variable-volume sealing cavity between the sealing groove and the elastic element, with the elastic element having an elastic groove at the opening; the elastic sealing ring is installed within the elastic groove; the pressure regulating element is connected to the membrane housing end cap and is configured to adjust the volume of the sealing cavity, allowing the elastic sealing ring to switch between at least an operating state and a retracted state. This invention allows for easy removal of the membrane housing end cap without the need for a special wrench, achieving time and labor savings.

Description

Technical Field

[0001] This invention relates to the field of filtration equipment technology, and in particular to a quick-release reverse osmosis fiberglass membrane housing. Background Technology

[0002] In related technologies, the membrane housings commonly used in reverse osmosis water treatment systems are mostly made of fiberglass, especially in various large-scale and key water treatment projects, where fiberglass reverse osmosis membrane housing end caps are almost exclusively used. Due to installation, use, cleaning, and replacement, it is frequently necessary to remove the membrane housing end caps to clean or replace the reverse osmosis membrane inside the housing. Furthermore, the membrane housing end caps are subject to water pressure and require a certain pressure-bearing capacity, which places high demands on them.

[0003] Most existing membrane housings and covers use sealing rings for sealing. During installation and replacement, the elastic deformation of the sealing rings leads to high friction between the membrane housing and the cover. A matching special wrench is required to remove the cover, making the replacement operation inconvenient, time-consuming, and labor-intensive, thus increasing the workload for staff. Summary of the Invention

[0004] In view of this, the purpose of the present invention is to overcome the shortcomings of the prior art and provide a quick-release reverse osmosis fiberglass membrane housing, which can easily pull out the membrane housing end cap without the need for a special wrench, thus saving time and effort.

[0005] This invention provides the following technical solution: A quick-release reverse osmosis fiberglass membrane housing, the reverse osmosis membrane housing comprising: Housing, the housing having ports; A membrane housing end cap, the membrane housing end cap having a sealing groove, and the membrane housing end cap being able to be installed on the port; An elastic element is mounted on the sealing groove and is configured to seal the opening of the sealing groove so that a variable-volume sealing cavity is formed between the sealing groove and the elastic element, and the elastic element has an elastic groove at the opening. An elastic sealing ring is installed within the elastic groove; A pressure regulating element is connected to the diaphragm housing end cap, and the pressure regulating element is configured to adjust the volume of the sealing cavity so that the elastic sealing ring can switch between at least a working state and a retracted state. In the stored state, the maximum outer diameter of the elastic sealing ring is smaller than the inner diameter at the port; in the working state, the elastic sealing ring can seal the gap between the elastic groove and the port.

[0006] Furthermore, the elastic element includes: An elastic sleeve, wherein the opposite ends of the elastic sleeve are respectively fitted and sealed to both sides of the sealing groove; In the initial state, the elastic groove is formed on the outer side of the elastic sleeve, and the minimum diameter of the elastic groove is not greater than the inner diameter of the elastic sealing ring.

[0007] Furthermore, at least one end of the elastic sleeve facing the inside of the port is embedded in the sealing groove and its corresponding side, and the two sides of the sealing groove are provided with rounded chamfers.

[0008] Furthermore, the pressure regulating element includes: The driving unit has a piston chamber in the diaphragm end cap, which is connected to the sealing cavity. The piston chamber has a deformable end that is elastically deformable. The elastic deformation of the deformable end is configured to change the volume of the piston chamber. The driving unit is connected to the diaphragm end cap and can adjust the degree of deformation of the deformable end.

[0009] Furthermore, an annular groove is provided at the outer end of the membrane housing end cap. The annular groove and the membrane housing end cap are coaxially arranged, and an annular elastic sealing gasket is connected to the groove opening of the annular groove. The elastic sealing gasket is configured to close the groove opening of the annular groove so that the piston cavity is formed between the annular groove and the elastic sealing gasket, and the elastic sealing gasket forms the deformable end.

[0010] Furthermore, the driving unit includes: Multiple adjusting bolts are threadedly connected to the end cap of the diaphragm housing, and the multiple adjusting bolts are evenly distributed along the circumference of the annular groove; wherein the head of the adjusting bolt can abut against the elastic sealing gasket.

[0011] Furthermore, the membrane end cap includes the following components arranged sequentially from the outer side to the inner side of the port: Multiple stops are provided, and the inner wall of the port is provided with a coaxial limiting groove. The multiple stops are all inserted into the limiting groove and are evenly distributed along the circumference of the limiting groove. Each of the stops is threadedly connected to the wall of a threaded connection hole on the pressure plate by a fastening bolt; wherein, the fastening bolt is provided with a coaxial threaded through hole, the wall of the threaded through hole is threadedly connected to the adjusting bolt, and the adjusting bolt is provided with a marking part, the marking part being used to indicate the length of the adjusting bolt screwed into the threaded through hole.

[0012] A sealing plate is connected to the pressure plate, and the sealing groove is coaxially disposed on the outer peripheral surface of the sealing plate.

[0013] Furthermore, the drive unit also includes: A rigid washer is coaxially connected to the elastic sealing gasket. The head of the adjusting bolt is capable of abutting the rigid washer, and the rotation of the adjusting bolt is configured to drive the rigid washer to move axially so that the rigid washer can enter and exit the annular groove.

[0014] Furthermore, the annular groove is provided with a plurality of flow equalization holes spaced apart in the circumferential direction. The flow equalization holes are configured to connect the annular groove and the sealing groove, and the flow equalization holes extend radially along the annular groove.

[0015] Furthermore, the drive unit also includes: Multiple telescopic springs are installed in the annular groove, and the multiple telescopic springs are spaced apart circumferentially along the annular groove; wherein, the telescopic springs are used to drive the rigid washer to reset.

[0016] Furthermore, the sealed cavity is filled with liquid water; wherein, a one-way valve is provided at the inner end of the membrane shell end cap, the one-way valve is connected to the sealed cavity, and the one-way valve can only allow liquid water in the shell to enter the sealed cavity.

[0017] The embodiments of the present invention have the following advantages: The quick-release reverse osmosis fiberglass membrane housing provided by this invention allows for adjustment of the sealing cavity volume, which in turn drives the elastic groove and elastic sealing ring to expand or contract radially. This allows for adjustment of the outer diameter of the elastic sealing ring. For example, when the membrane housing end cap is installed inside the port, increasing the volume of the sealing cavity increases the diameter of the elastic groove and elastic sealing ring until the elastic sealing ring is deformed by the elastic groove and the inner wall of the port, reaching a set deformation. At this point, the elastic sealing ring is in working condition, sealing the gap between the membrane housing end cap and the port. When the membrane housing end cap needs to be removed, the volume of the sealing cavity can be reduced, allowing the elastic groove and elastic sealing ring to contract radially under their own elasticity, thus detaching the elastic sealing ring from the inner wall of the contact port. The membrane housing end cap can then be directly pulled out without the need for special wrenches or other tools, and the entire disassembly and assembly process is time-saving and labor-saving.

[0018] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 A schematic diagram of the quick-release reverse osmosis fiberglass membrane housing provided by the present invention is shown from one perspective.

[0021] Figure 2 This diagram shows a structural schematic from another perspective of the quick-release reverse osmosis fiberglass membrane housing provided by the present invention.

[0022] Figure 3 It shows Figure 1 Enlarged view of a portion of point A in the middle.

[0023] Figure 4 A schematic diagram of the sealing cavity and piston cavity is shown.

[0024] Figure 5 A schematic diagram of the sealing plate of the quick-release reverse osmosis fiberglass membrane shell provided by the present invention is shown.

[0025] Explanation of key component symbols: 100-Housing; 200-Diaphragm end cap; 210-Limiting groove; 220-Stop; 230-Fastening bolt; 240-Pressure plate; 250-Sealing plate; 260-Piston chamber; 261-Elastic sealing gasket; 262-Hard washer; 263-Telescopic spring; 264-Annular groove; 265-Flow equalization hole; 270-Sealing cavity; 271-Sealing groove; 272-Elastic sleeve; 280-Elastic sealing ring; 290-One-way valve; 300-Port; 400-Adjusting bolt. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be described clearly and completely below in conjunction with specific embodiments.

[0027] In related technologies, the RO reverse osmosis fiberglass membrane housing is a crucial component in a reverse osmosis pure water production system. The membrane housing is designed to ensure the safe and stable operation of the reverse osmosis system. Depending on the inlet water pressure of the reverse osmosis membrane element, RO fiberglass membrane housings are divided into low-pressure and high-pressure types to ensure the membrane element's sealing, non-toxicity, and non-polluting properties, and to meet the requirements of long-term corrosion resistance.

[0028] Most common reverse osmosis water treatment systems use fiberglass membrane housings, especially in large-scale and key water treatment projects, where fiberglass reverse osmosis membrane housings and membrane end caps (200mm) are almost exclusively used. Due to installation, use, cleaning, and replacement, the membrane end caps (200mm) frequently need to be removed to clean or replace the reverse osmosis membrane inside the housing. Furthermore, the membrane end caps are subject to water pressure and require a certain pressure-bearing capacity, placing high demands on them.

[0029] The existing housing 100 and diaphragm cover are mostly sealed with sealing rings. During installation and replacement, due to the elastic deformation of the sealing ring, the friction between the diaphragm housing 100 and the diaphragm cover is large. A matching special wrench is required to remove the diaphragm cover, which makes the replacement operation inconvenient, time-consuming and labor-intensive, and increases the workload of the staff.

[0030] As shown in Figures 1 to 5, to solve the above-mentioned technical problems, according to the present invention, a quick-release reverse osmosis fiberglass membrane housing is provided. The reverse osmosis membrane housing includes a housing 100, a membrane housing end cap 200, an elastic element, an elastic sealing ring 280, and a pressure regulating element. The housing 100 has a port 300; the membrane housing end cap 200 has a sealing groove 271, and the membrane housing end cap 200 can be installed at the port 300; the elastic element is installed in the sealing groove 271, and the elastic element is configured to seal the opening of the sealing groove 271, so that a body is formed between the sealing groove 271 and the elastic element. A variable-volume sealing cavity 270 is provided, and an elastic element forms an elastic groove at the opening; an elastic sealing ring 280 is installed in the elastic groove; a pressure regulating element is connected to a diaphragm end cap 200, and the pressure regulating element is configured to adjust the volume of the sealing cavity 270 so that the elastic sealing ring 280 can switch between at least an operating state and a retracted state; wherein, in the retracted state, the maximum outer diameter of the elastic sealing ring 280 is smaller than the inner diameter at the port 300; and in the operating state, the elastic sealing ring 280 can seal the gap between the elastic groove and the port 300.

[0031] It is easy to understand that the reverse osmosis membrane housing is used to install the filter element, which is the reverse osmosis membrane. The reverse osmosis membrane housing includes a housing 100, with ports 300 at opposite ends of the housing 100. The membrane housing end cap 200 is circular and is coaxially fixed inside the port 300.

[0032] In this embodiment, a sealing groove 271 is formed on the outer peripheral surface of the membrane housing end cap 200. The sealing groove 271 and the membrane housing end cap 200 are coaxially arranged. By installing an elastic element, the opening of the sealing groove 271 is closed, thereby forming a sealing cavity 270 between the sealing groove 271 and the elastic element. A recessed area is formed on the outer side of the elastic element, which constitutes an elastic groove. An elastic sealing ring 280 is spread out and installed in the elastic groove. It should be noted that the elastic groove is annular and coaxially arranged with the membrane housing end cap 200.

[0033] Because the elastic element can undergo elastic deformation, specifically, the volume of the sealing cavity 270 can be changed to cause the elastic groove to expand or shrink radially in the diaphragm end cap 200. For example, by filling the sealing cavity 270 with a gaseous or liquid medium, the amount of the gaseous or liquid medium can be adjusted, thereby changing the volume of the sealing cavity 270 and thus adjusting the diameter of the annular elastic groove. Simply put, if the amount of gaseous or liquid medium in the sealing cavity 270 is continuously increased, the elastic groove will expand radially, which in turn will cause the elastic sealing ring 280 to expand radially, so that the inner side of the elastic groove and the elastic sealing ring 280 abuts to seal, and the outer diameter of the elastic sealing ring 280 abuts to seal with the inner wall of the port 300 after expansion. Obviously, by expanding the volume of the sealing cavity 270, the outer diameter of the elastic sealing ring 280 can be adjusted, and the expanded elastic sealing ring 280 can eliminate the gap between the diaphragm end cap 200 and the port 300 to achieve a sealing effect.

[0034] For example, in the working state, the elastic sealing ring 280 is compressed and deformed, and the outer side of the elastic sealing ring 280 is pressed against the inner wall of the port 300, and the inner side is pressed against the bottom of the elastic groove.

[0035] If the amount of gaseous or liquid medium in the sealing cavity 270 is continuously reduced, the volume of the sealing cavity 270 will shrink, and the elastic sealing ring 280 will shrink under its own elastic force. For example, when the elastic sealing ring 280 is in an expanded state, if the amount of gaseous or liquid medium in the sealing cavity 270 is reduced, the radius of both the elastic element and the elastic sealing ring 280 will shrink.

[0036] For example, when in the retracted state, if the maximum outer diameter of the elastic sealing ring 280 is smaller than the inner diameter of the port 300, it is easy for the elastic sealing ring 280 to disengage from the inner wall of the contact compression port 300.

[0037] It should be noted that since the gaseous or liquid medium can flow within the sealing cavity 270, the pressure throughout the sealing cavity 270 can be kept basically consistent, thereby ensuring that the expansion or contraction of the elastic element is consistent throughout.

[0038] By applying the reverse osmosis membrane housing provided by this invention, the volume of the sealing cavity 270 can be adjusted to drive the elastic groove and the elastic sealing ring 280 to expand or shrink radially simultaneously, thereby adjusting the outer diameter of the elastic sealing ring 280. For example, when the membrane housing end cap 200 is installed in the port 300, by increasing the volume of the sealing cavity 270, the diameter of the elastic groove and the elastic sealing ring 280 is driven until the elastic sealing ring 280 is deformed by the elastic groove and the inner wall of the port 300 and reaches the set value. When the deformation is large, the elastic sealing ring 280 is in working condition to seal the gap between the membrane housing end cap 200 and the port 300. When the membrane housing end cap 200 needs to be removed, the volume of the sealing cavity 270 can be reduced so that the elastic groove and the elastic sealing ring 280 can be radially reduced to a retracted state under their own elastic force, so that the elastic sealing ring 280 can be separated from the inner wall of the contact port 300, and then the membrane housing end cap 200 can be pulled out directly without the need for special wrenches or other tools, and the whole disassembly and assembly process is time-saving and labor-saving.

[0039] It should be noted that since the forces between the elastic groove and the elastic sealing ring 280 are mutual, the inner wall of the elastic groove will also undergo elastic deformation, which can increase the contact area between the elastic groove and the elastic sealing ring 280, thereby increasing the sealing effect between the elastic groove and the elastic sealing ring 280.

[0040] For example, the elastic groove is configured as an arc-shaped groove, that is, its cross-section is arc-shaped, which can further increase the contact area between the elastic groove and the elastic sealing ring 280. Optionally, the elastic sealing ring 280 is generally an O-ring.

[0041] Based on the above embodiment, the elastic element includes an elastic sleeve 272, with the two opposite ends of the elastic sleeve 272 respectively fitted and sealed to both sides of the sealing groove 271; wherein, in the initial state, the elastic groove is formed on the outer side of the elastic sleeve 272, and the inner diameter of the elastic groove is not greater than the inner diameter of the elastic sealing ring 280.

[0042] It should be noted that the sealing groove 271 is provided on the outer peripheral surface of the membrane housing end cover 200. The sealing groove 271 and the membrane housing end cover 200 are coaxially arranged. Therefore, both ends of the sealing groove 271 are cylinders. Thus, the two ends of the elastic sleeve 272 can be installed on the two ends of the sealing groove 271 respectively by means of sleeve fixing.

[0043] For example, the two ends of the elastic sleeve 272 are respectively fitted onto the two ends of the sealing groove 271 and fixed by adhesive bonding. Of course, in other embodiments, it can also be fixed by means of clamps or the like.

[0044] For example, the elastic sleeve 272 can be made of the same material as the elastic sealing ring 280, which can increase the compatibility between the two and improve the sealing effect. Optionally, both the elastic sleeve 272 and the elastic sealing ring 280 can be made of rubber.

[0045] In addition, the elastic sleeve 272 is initially a circular sleeve, and the original radius of the elastic sleeve 272 is smaller than the maximum radius of the groove. That is to say, when its two ends are fixed to the two sides of the sealing groove 271 respectively, a recessed area can be formed in the middle of the elastic sleeve 272, which is the elastic groove.

[0046] For example, the installed elastic sleeve 272 is in a stretched state in its circumference to avoid wrinkles in the elastic sleeve 272 that would affect the sealing performance.

[0047] Obviously, if the inner diameter of the elastic groove is not greater than the inner diameter of the elastic sealing ring 280, it is easier to reduce the contact area between the two, so as to facilitate the disassembly and assembly of the elastic sealing ring 280.

[0048] Based on the above embodiment, the elastic sleeve 272 is embedded in the sealing groove 271 and its corresponding side at least one end facing the inside of the port 300, and the two sides of the sealing groove 271 are provided with rounded chamfers.

[0049] Since the elastic sleeve 272 is deformable, the stress concentration at the connection between the elastic sleeve 272 and the sealing groove 271 can be reduced by using a rounded chamfer, which can effectively extend the service life.

[0050] Based on the above embodiments, the pressure regulating member includes a drive unit, a diaphragm end cap 200 having a piston chamber 260, the piston chamber 260 and the sealing chamber 270 being in communication, the piston chamber 260 having a deformable end, the deformable end being elastically deformable, the elastic deformation of the deformable end being configured to cause a change in the volume of the piston chamber 260, the drive unit being connected to the diaphragm end cap 200, and the drive unit being able to adjust the degree of deformation of the deformable end.

[0051] In other words, by adjusting the degree of deformation at the deformable end through the drive unit, the volume of the piston chamber 260 can be changed, and the volume of the sealing chamber 270 can be changed accordingly, thereby controlling the radial expansion or contraction of the elastic groove and the elastic sealing ring 280. Simply put, if the volume of the piston chamber 260 decreases, the volume of the sealing chamber 270 will increase; if the volume of the piston chamber 260 increases, the volume of the sealing chamber 270 will decrease.

[0052] For example, the extrusion deformation end of the drive unit deforms towards the inside of the piston cavity 260, thereby changing the volume of the piston cavity 260, so as to indirectly drive the liquid or gaseous medium in the sealing cavity 270 to enter and exit the sealing cavity 270.

[0053] Based on the above embodiment, an annular groove 264 is provided at the outer end of the membrane housing end cap 200. The annular groove 264 and the membrane housing end cap 200 are coaxially arranged, and an annular elastic sealing gasket 261 is connected to the groove opening of the annular groove 264. The elastic sealing gasket 261 is configured to close the groove opening of the annular groove 264, so that a piston cavity 260 is formed between the annular groove 264 and the elastic sealing gasket 261, and the elastic sealing gasket 261 forms a deformable end.

[0054] The end of the diaphragm end cap 200 facing outward from the port 300 is the outer end, and the end facing inward from the port 300 is the inner end. An annular groove 264 is provided at the outer end of the diaphragm end cap 200, and the opening of the annular groove 264 is closed by an elastic sealing gasket 261, thus forming a piston chamber 260 and a deformation end. Therefore, by controlling the degree to which the drive unit compresses the elastic sealing gasket 261 into the annular groove 264, the volume of the piston chamber 260 can be changed, thereby changing the volume of the sealing chamber 270 and the pressure inside the sealing chamber 270.

[0055] It should be noted that, since the elastic sealing gasket 261 has the ability to deform elastically, when the driving part removes the compressive force acting on the elastic sealing gasket 261, the elastic sealing gasket 261 can recover its deformation.

[0056] For example, the elastic sealing gasket 261 is fixed to the membrane housing end cap 200 by adhesive bonding. It should be noted that the specific method of adhesive bonding of the elastic sealing gasket 261 is a conventional method used by those skilled in the art and will not be described in detail here.

[0057] Based on the above embodiment, the drive unit includes a plurality of adjusting bolts 400, all of which are threaded to the diaphragm end cap 200, and the plurality of adjusting bolts 400 are evenly distributed along the circumference of the annular groove 264; wherein, the head of the adjusting bolt 400 can abut against the elastic sealing gasket 261.

[0058] For example, the threaded direction of the adjusting bolt 400 is axial with that of the diaphragm end cap 200. That is, the adjusting bolt 400 extends axially along the diaphragm end cap 200. Therefore, by rotating the adjusting bolt 400, the elastic sealing gasket 261 is deformed in the groove depth direction of the annular groove 264.

[0059] It should be noted that by setting multiple adjusting bolts 400 to press the elastic sealing gasket 261 at different points, the volume of the piston chamber 260 can be quickly adjusted, and the range of volume change of the piston chamber 260 is larger.

[0060] Based on the above embodiments, the membrane end cap 200 includes a plurality of baffles 220, a pressure plate 240 and a sealing plate 250 arranged sequentially from the outside to the inside of the port 300. The inner wall of the port 300 is provided with a coaxial limiting groove 210. The plurality of baffles 220 are all inserted into the limiting groove 210 and are evenly distributed along the circumference of the limiting groove 210. Each of the stop blocks 220 is threadedly connected to the wall of the threaded connection hole on the pressure plate 240 by a fastening bolt 230; wherein, the fastening bolt 230 is provided with a coaxial threaded through hole, the wall of the threaded through hole is threadedly connected to an adjusting bolt 400, and the adjusting bolt 400 is provided with a marking part, the marking part being used to indicate the length of the adjusting bolt 400 screwed into the threaded through hole. The sealing plate 250 is connected to the pressure plate 240, and the sealing groove 271 is coaxially disposed on the outer peripheral surface of the sealing plate 250.

[0061] It is easy to understand that existing membrane housing end caps 200 are mostly composed of multiple stops 220, pressure plates 240, and sealing plates 250. The multiple stops 220 are evenly distributed circumferentially around the port 300. After the stops 220 are inserted into the limiting groove 210, they are connected to the pressure plates 240 by fastening bolts 230. Specifically, the pressure plates 240 are provided with threaded connection holes that are threaded to the fastening bolts 230, which allows the elastic sealing gasket 261 to be exposed from the threaded connection holes.

[0062] In this embodiment, by coaxially providing a threaded through hole on the fastening bolt 230, the head of the adjusting bolt 400, which is threaded into the threaded through hole, can abut against the elastic sealing gasket 261. Therefore, the deformation of the elastic sealing gasket 261 can be adjusted by controlling the length of the adjusting bolt 400 screwed into the threaded through hole, that is, by controlling the length of the head of the adjusting bolt 400 extending out of the threaded through hole.

[0063] Clearly, by providing a marking section, the length of the adjusting bolt 400 screwed into the threaded through hole can be easily controlled. For example, the marking section can be a scale line, or the adjusting bolt 400 can be divided into multiple segments along its axial direction, each segment being set with a different color.

[0064] It should be noted that the existing port 300 and membrane housing end cap 200 are sealed with a sealing ring. The sealing ring needs to withstand the pressure of the water inside the filter. It is prone to aging, and its sealing performance is unreliable, posing a serious risk of water leakage, which cannot meet the needs of users.

[0065] By adjusting the volume of the sealing cavity 270 in real time during use, the sealing performance between the port 300 and the diaphragm end cap 200 can be guaranteed. For example, periodically increasing the volume of the sealing cavity 270 can increase the deformation of the elastic seal, thereby compensating for the impact of wear or aging of the elastic sealing ring 280 on the sealing performance.

[0066] Alternatively, when leakage occurs, the volume of the sealing cavity 270 can be increased to improve the sealing effect of the elastic sealing ring 280 and solve the leakage problem.

[0067] Based on the above embodiment, the drive unit further includes a rigid washer 262, which is coaxially connected to the elastic sealing gasket 261. The head of the adjusting bolt 400 can abut against the rigid washer 262, and the rotation of the adjusting bolt 400 is configured to drive the rigid washer 262 to move along its axial direction so that the rigid washer 262 can enter and exit the annular groove 264.

[0068] For example, the inner diameter of the rigid washer 262 is larger than the inner diameter of the annular groove 264, and the outer diameter of the rigid washer 262 is smaller than the outer diameter of the annular groove 264, thereby ensuring that the rigid washer 262 can move in and out of the annular groove 264 when it moves axially.

[0069] Clearly, by setting the rigid washer 262, it can be ensured that all parts of the annular groove 264 can be compressed, further increasing the volume adjustment range of the piston chamber 260. This also accelerates the volume adjustment speed of the piston chamber 260, facilitating rapid adjustment of the sealing chamber 270.

[0070] Furthermore, by using a rigid washer 262 to contact the head of the adjusting bolt 400, wear on the elastic sealing gasket 261 by the adjusting bolt 400 can be reduced. Specifically, the rigid washer 262 can be bonded to the elastic sealing gasket 261.

[0071] Based on the above embodiment, a plurality of flow equalization holes 265 are provided circumferentially at intervals in the annular groove 264. The flow equalization holes 265 are configured to connect the annular groove 264 and the sealing groove 271, and the flow equalization holes 265 extend radially along the annular groove 264.

[0072] In other words, it can ensure that the deformation rate is basically the same throughout the elastic groove and improve the adjustment speed. At the same time, it can prevent pressure buildup in any part of the sealing cavity 270.

[0073] Based on the above embodiment, the driving unit also includes a plurality of telescopic springs 263, which are installed in the annular groove 264 and are spaced apart along the circumference of the annular groove 264; wherein, the telescopic springs 263 are used to drive the rigid washer 262 to reset.

[0074] For example, multiple telescopic springs 263 are evenly distributed around the circumference of the annular groove 264. The axis of the telescopic springs 263 is parallel to the axis of the annular groove 264. The two opposite ends of the telescopic springs 263 abut against the bottom of the annular groove 264 and the elastic sealing gasket 261, respectively. This allows the adjusting bolt 400 to be unscrewed when the membrane housing end cover 200 is removed. The elastic sealing gasket 261 quickly resets under the action of the telescopic springs 263 restoring their deformation, thereby achieving the purpose of quickly reducing the sealing cavity 270. This allows the elastic sealing ring 280 to disengage from the inner wall of the port 300, after which the operator can directly pull out the membrane housing end cover 200.

[0075] It should be noted that when the adjusting bolt 400 drives the rigid washer 262 into the annular groove 264, the telescopic spring 263 will also be compressed. Optionally, the telescopic spring 263 is in a compressed state initially.

[0076] For example, a limiting post is provided at the bottom of the annular groove 264, and a telescopic spring 263 is sleeved on the limiting post to facilitate its positioning.

[0077] Based on the above embodiment, the sealing cavity 270 is filled with liquid water; wherein, the inner end of the membrane housing end cap 200 is provided with a one-way valve 290, the one-way valve 290 is connected to the sealing cavity 270, and the one-way valve 290 can only allow the liquid water in the housing 100 to enter the sealing cavity 270.

[0078] In other words, the one-way valve 290 is only used when water from the housing 100 enters the sealing cavity 270, provided that the water pressure inside the housing 100 is greater than the water pressure inside the sealing cavity 270. Obviously, when water from the housing 100 enters the sealing cavity 270, the volume of the sealing cavity 270 will further increase, thereby improving the sealing effect of the elastic sealing ring 280.

[0079] For example, the one-way valve 290 may be a male quick-connect fitting to facilitate filling and draining liquid water in the sealed cavity 270.

[0080] Of course, in other embodiments, the one-way valve 290 can also be disposed at the outer end of the diaphragm housing end cap 200; for example, the one-way valve 290 can be opened manually by pressing it, so that the liquid or gas medium in the sealing cavity 270 can be discharged quickly, thereby achieving the same effect of adjusting the volume of the sealing cavity 270.

[0081] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A quick-release reverse osmosis fiberglass membrane housing, characterized in that, The reverse osmosis membrane housing includes: Housing, the housing having ports; A membrane housing end cap, the membrane housing end cap having a sealing groove, and the membrane housing end cap being able to be installed on the port; An elastic element is mounted on the sealing groove and is configured to seal the opening of the sealing groove so that a variable-volume sealing cavity is formed between the sealing groove and the elastic element, and the elastic element has an elastic groove at the opening. An elastic sealing ring is installed within the elastic groove; A pressure regulating element is connected to the diaphragm housing end cap, and the pressure regulating element is configured to adjust the volume of the sealing cavity so that the elastic sealing ring can switch between at least a working state and a retracted state. In the stored state, the maximum outer diameter of the elastic sealing ring is smaller than the inner diameter at the port; in the working state, the elastic sealing ring can seal the gap between the elastic groove and the port. When the membrane housing end cap is installed inside the port, the volume of the sealing cavity is increased by adjusting the volume to drive the diameter of the elastic groove and the elastic sealing ring until the elastic sealing ring is squeezed and deformed by the elastic groove and the inner wall of the port and reaches the set deformation. At this point, the elastic sealing ring is in working condition. When it is necessary to remove the membrane housing end cap, the volume of the sealing cavity is reduced so that the elastic groove and the elastic sealing ring are radially reduced to a retracted state under their own elastic force. The pressure regulating component includes a drive unit, the diaphragm end cap has a piston chamber, the piston chamber is connected to the sealing cavity, the piston chamber has a deformable end, the deformable end is elastically deformable, the elastic deformation of the deformable end is configured to change the volume of the piston chamber, the drive unit is connected to the diaphragm end cap, and the drive unit is capable of adjusting the degree of deformation of the deformable end.

2. The quick-release reverse osmosis fiberglass membrane housing according to claim 1, characterized in that, The elastic element includes: An elastic sleeve, wherein the opposite ends of the elastic sleeve are respectively fitted and sealed to both sides of the sealing groove; In the initial state, the elastic groove is formed on the outer side of the elastic sleeve, and the minimum diameter of the elastic groove is not greater than the inner diameter of the elastic sealing ring.

3. The quick-release reverse osmosis fiberglass membrane housing according to claim 1, characterized in that, An annular groove is provided at the outer end of the membrane housing end cap. The annular groove and the membrane housing end cap are coaxially arranged, and an annular elastic sealing gasket is connected to the groove opening of the annular groove. The elastic sealing gasket is configured to close the groove opening of the annular groove so that the piston cavity is formed between the annular groove and the elastic sealing gasket, and the elastic sealing gasket forms the deformable end.

4. A quick-release reverse osmosis fiberglass membrane housing according to claim 3, characterized in that, The drive unit includes: Multiple adjusting bolts are threadedly connected to the end cap of the diaphragm housing, and the multiple adjusting bolts are evenly distributed along the circumference of the annular groove; wherein the head of the adjusting bolt can abut against the elastic sealing gasket.

5. A quick-release reverse osmosis fiberglass membrane housing according to claim 4, characterized in that, The membrane end cap includes the following components arranged sequentially from the outer side to the inner side of the port: Multiple stops are provided, and the inner wall of the port is provided with a coaxial limiting groove. The multiple stops are all inserted into the limiting groove and are evenly distributed along the circumference of the limiting groove. Each of the stops is threadedly connected to the wall of a threaded connection hole on the pressure plate by a fastening bolt; wherein, the fastening bolt is provided with a coaxial threaded through hole, the wall of the threaded through hole is threadedly connected to the adjusting bolt, and the adjusting bolt is provided with a marking part, the marking part being used to indicate the length of the adjusting bolt screwed into the threaded through hole; A sealing plate is connected to the pressure plate, and the sealing groove is coaxially disposed on the outer peripheral surface of the sealing plate.

6. A quick-release reverse osmosis fiberglass membrane housing according to claim 4, characterized in that, The drive unit also includes: A rigid washer is coaxially connected to the elastic sealing gasket. The head of the adjusting bolt is capable of abutting the rigid washer, and the rotation of the adjusting bolt is configured to drive the rigid washer to move axially so that the rigid washer can enter and exit the annular groove.

7. A quick-release reverse osmosis fiberglass membrane housing according to claim 6, characterized in that, The annular groove is provided with a plurality of flow equalization holes spaced apart in the circumferential direction. The flow equalization holes are configured to connect the annular groove and the sealing groove, and the flow equalization holes extend radially along the annular groove.

8. A quick-release reverse osmosis fiberglass membrane housing according to claim 7, characterized in that, The drive unit also includes: Multiple telescopic springs are installed in the annular groove, and the multiple telescopic springs are spaced apart circumferentially along the annular groove; wherein, the telescopic springs are used to drive the rigid washer to reset.

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