Pressure protection device of water purification system

Abstract

The utility model discloses a water purification system pressure protection device which comprises a connecting pipe, the connecting pipe is sequentially provided with a water inlet end, a pressurization end, a pressure relief end and a water outlet end in the axis direction, the water inlet end is connected with a water pipe, the pressurization end is connected with a pressurization assembly of a water purification system, the pressure relief end is provided with a safety pressure valve, and the water outlet end is connected with a filtering assembly of the water purification system. A first blocking ring and a second blocking ring are arranged on the inner wall of the connecting pipe, the first blocking ring is located between the pressurization end and the pressure relief end, the second blocking ring is located between the pressure relief end and the water outlet end, the second blocking ring is provided with a connecting ring, the connecting ring is connected with a water sealing disc through a first elastic piece, and the diameter of the water sealing disc is equal to the inner diameter of the second blocking ring. According to the utility model, the water sealing disc is pushed to the second blocking ring to seal the water outlet end of the connecting pipe at the moment that the water pressure is increased to exceed the normal state, so that the water pressure is blocked, and the filtering assembly is prevented from being impacted and damaged by overlarge water pressure.

Description

Technical Field

[0001] This utility model relates to the field of water treatment equipment technology, and in particular to a pressure protection device for a water purification system. Background Technology

[0002] Water purification systems in related technologies include a pressurization component and a filtration component. The filtration component is connected to a water pipe. The pressurization component generates pressure to increase the water pressure in the pipe, propelling the water through the filtration component. This pressure allows the water to overcome the resistance of the filter material, thus achieving the filtration process. However, when the pressurization component generates excessive pressure, it forces impurities remaining on the filtration component through, reducing the filtration effect and damaging the filtration component. Although existing technologies include safety pressure valves on the water pipes that automatically open to reduce water pressure when it becomes too high, the valve still requires a certain reaction time to release the pressure, which can still impact the filtration component and cause some damage. Utility Model Content

[0003] To solve the above problems, the technical solution adopted by this utility model is as follows:

[0004] A pressure protection device for a water purification system includes a connecting pipe. The connecting pipe has an inlet end, a pressure boosting end, a pressure relief end, and an outlet end arranged sequentially along the axial direction. The inlet end is connected to a water pipe, the pressure boosting end is connected to a pressure boosting component of the water purification system, the pressure relief end is equipped with a safety pressure valve, and the outlet end is connected to a filter component of the water purification system. The inner wall of the connecting pipe is provided with a first blocking ring and a second blocking ring at intervals. The first blocking ring is located between the pressure boosting end and the pressure relief end, and the second blocking ring is located between the pressure relief end and the outlet end. The second blocking ring is provided with a connecting ring. The connecting ring is connected to a sealing plate through a first elastic element. The sealing plate is located between the first blocking ring and the second blocking ring. The diameter of the sealing plate is equal to the inner diameter of the second blocking ring.

[0005] When the pressurization component in the water purification system generates excessive pressure, and the water pressure increases beyond the normal range for a moment, it will push the sealing disc into the second blocking ring. At this time, the sealing disc and the second blocking ring will seal the outlet end of the connecting pipe, blocking the water pressure and preventing excessive water pressure from impacting and damaging the filter assembly. After the safety pressure valve releases the water pressure, the sealing disc will be automatically pushed out of the second blocking ring under the rebound force of the first elastic element, allowing water to flow back from the outlet end to the filter assembly.

[0006] Furthermore, the outer arc surface of the water sealing pan is provided with a sealing layer. The sealing layer can improve the sealing performance of the water sealing pan to better block water pressure.

[0007] Furthermore, the outer arc surface of the water sealing plate is provided with a plurality of grooves, which are arranged in a circle with the axis of the water sealing plate as the center. Each groove is slidably fitted with a locking block by a second elastic element, and the locking block is fitted and engaged with the second blocking ring.

[0008] Furthermore, the inner wall of the second blocking ring is provided with a groove that engages with the locking block. The engagement between the locking block and the groove can prevent excessive movement of the sealing plate and avoid damage to the first elastic element due to excessive compression.

[0009] Furthermore, the end of the second blocking ring near the sealing plate has a funnel-shaped opening.

[0010] The flared opening provides pressure towards the center of the block, pressing it down into the groove and ensuring that the sealing plate can move smoothly into the second blocking block.

[0011] Furthermore, the end face of the connecting ring is provided with a water passage hole. The water passage hole allows water to flow smoothly through the connecting ring, thereby facilitating the water flow out from the outlet end.

[0012] Furthermore, the sealing plate is connected to another sealing plate via a connecting column, and the diameters of both sealing plates are equal to the inner diameter of the first blocking ring. When the sealing plate is pushed into the first blocking ring, it enables reverse flushing of the filter assembly and discharges impurities from the pressure relief end, effectively cleaning impurities, preventing impurities from remaining in the water pipe, and improving the service life of the filter assembly.

[0013] The beneficial effects of this utility model are:

[0014] 1. When the water pressure increases beyond the normal level, the sealing plate will be pushed into the second blocking ring to seal the outlet of the connecting pipe, blocking the water pressure and preventing excessive water pressure from impacting and damaging the filter components.

[0015] 2. The cooperation between the card block and the card slot can prevent excessive movement of the water sealing plate and avoid damage to the first elastic element due to excessive compression.

[0016] 3. When the sealing plate is pushed into the first blocking ring, it can achieve reverse flushing of the filter component and discharge impurities from the pressure relief end, effectively cleaning impurities, avoiding impurities remaining in the water pipe, and improving the service life of the filter component. Attached Figure Description

[0017] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of the invention.

[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 A cross-sectional view of this utility model Figure 1 ;

[0020] Figure 2 This is a schematic diagram of the mating structure of the card block and the card slot;

[0021] Figure 3 This is a cross-sectional view of the sealing pan;

[0022] Figure 4 This is a cross-sectional view of the connecting ring;

[0023] Figure 5 A cross-sectional view of this utility model Figure 2 ;

[0024] In the picture

[0025] 1. Connecting pipe; 101. Inlet end; 102. Outlet end; 103. Pressure boosting end; 104. Pressure relief end; 105. Safety pressure valve; 2. First blocking ring; 3. Second blocking ring; 301. Slot; 4. Connecting ring; 401. Water passage hole; 5. First elastic element; 6. Sealing plate; 601. Sealing layer; 602. Groove; 603. Second elastic element; 604. Locking block; 605. Connecting column. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of the embodiments of this disclosure clearer, the technical solutions of the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this disclosure. All other embodiments obtained by those skilled in the art based on the described embodiments of this disclosure without creative effort are within the scope of protection of this disclosure.

[0027] Unless otherwise defined, the technical or scientific terms used in this disclosure shall have the ordinary meaning understood by one of ordinary skill in the art to which this disclosure pertains. The terms "first," "second," and similar terms used in this disclosure do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships, and these relative positional relationships may change accordingly when the absolute position of the described object changes.

[0028] refer to Figures 1-4 As shown, one embodiment of this utility model is as follows:

[0029] A pressure protection device for a water purification system includes a connecting pipe 1. The connecting pipe 1 has an inlet end 101, a pressure boosting end 103, a pressure relief end 104, and an outlet end 102 arranged sequentially along its axis. The inlet end 101 is connected to a water pipe. The pressure boosting end 103 is connected to a pressure boosting component of the water purification system. This pressure boosting component can be an existing pressure boosting pump, the outlet of which is connected to the pressure boosting end 103 on the connecting pipe 1 to increase the water pressure in the connecting pipe 1. The pressure relief end 104 is equipped with a safety pressure valve 105. This safety pressure valve 105 is existing technology and has a preset pressure threshold. When the water pressure in the connecting pipe 1 exceeds the pressure threshold, the safety pressure valve 105 automatically opens to release the water pressure in the connecting pipe 1. When the water pressure in the connecting pipe 1 falls below the pressure threshold, the safety pressure valve 105 automatically closes. The outlet end 102 is connected to a filter component of the water purification system. This filter component is existing technology and includes a quartz sand filter layer, an activated carbon layer, a KDF composite filter layer, etc., for filtering impurities from tap water.

[0030] The inner wall of the connecting pipe 1 is provided with a first blocking ring 2 and a second blocking ring 3 at intervals. The first blocking ring 2 is located between the pressurization end 103 and the pressure relief end 104, and the second blocking ring 3 is located between the pressure relief end 104 and the water outlet end 102. The second blocking ring 3 is provided with a connecting ring 4. The connecting ring 4 is connected to a water sealing plate 6 through a first elastic element 5. The water sealing plate 6 is located between the first blocking ring 2 and the second blocking ring 3. The diameter of the water sealing plate 6 is equal to the inner diameter of the second blocking ring 3.

[0031] The working principle of this utility model is as follows: When the pressurizing component in the water purification system is working normally and the water pressure in the connecting pipe 1 is in a normal state, the sealing plate 4 is pushed and floats back and forth between the first blocking ring 2 and the second blocking ring 3 as the water pressure in the connecting pipe 1 changes, ensuring that water can flow out of the outlet 102; when the pressurizing component in the water purification system generates excessive pressure, and the water pressure increases beyond the normal state for a moment, it will push the sealing plate 6 into the second blocking ring 3. At this time, the sealing plate 6 and the second blocking ring 3 seal the outlet 102 of the connecting pipe 1, blocking the water pressure and preventing excessive water pressure from impacting the filter component and causing damage to the filter component. At this time, the first elastic element 5 is in a compressed state. After the safety pressure valve 105 releases the water pressure and automatically closes, the sealing plate 6 is pushed out of the second blocking ring 3 under the action of the rebound force of the first elastic element 5, allowing water to flow back from the outlet 102 to the filter component.

[0032] In this invention, the first elastic element 5 is a spring, which can be made of materials with strong corrosion resistance and stability, such as stainless steel springs and copper springs, which can be used for a long time in tap water environments, thereby improving service life.

[0033] In this utility model, the first blocking ring 2 and the second blocking ring 3 can be integrally formed with the connecting pipe 1 by casting. In other embodiments, they can also be fixedly connected to the connecting pipe 1 by threaded connection. An internal thread is formed on the inner wall of the connecting pipe 1, and a corresponding matching internal thread is formed on the outer wall of the first blocking ring 2 and the second blocking ring 3. The threaded connection facilitates the maintenance and repair of the first blocking ring 2 and the second blocking ring 3, and improves the ease of use.

[0034] The outer arc surface of the water sealing plate 6 is provided with a sealing layer 601. When the water sealing plate 6 is located in the second blocking ring 3, the sealing layer 601 can ensure the sealing performance and effectively block water pressure. The sealing layer 601 can be made of sealing materials such as rubber, silicone, or resin.

[0035] like Figure 4 As shown, the end face of the connecting ring 4 is provided with a water passage hole 401, which allows water to flow smoothly through the connecting ring 4, thus facilitating the water flow out from the outlet end 102. To facilitate the installation of the connecting ring 4, the outer wall of the connecting ring 4 is provided with an external thread, and the inner wall of the second blocking ring 3 is provided with a matching internal thread corresponding to the connecting ring 4. The connecting ring 4 is installed onto the second blocking ring 3 by means of threaded connection.

[0036] In this invention, to prevent the first elastic element 5 from being damaged due to excessive compression, a plurality of grooves 602 are provided on the outer arc surface of the water sealing plate 6. These grooves 602 are evenly arranged circumferentially around the axis of the water sealing plate 6. Each groove 602 is fitted with a locking block 604 via a second elastic element 603. A slot 301 is provided on the inner wall of the second blocking ring 3, and the locking block 604 engages with the slot 301 on the second blocking ring 3. When the water sealing plate 6 moves to the position of the slot 301 in the second blocking ring 3, the locking block 604 is pushed into the slot 301 by the second elastic element 603. The locking block 604 withstands the impact of water pressure and fixes the position of the water sealing plate 6, preventing the first elastic element 5 from being excessively compressed. In this invention, the second elastic element 603 is similar to the first elastic element 5 and will not be described further.

[0037] Specifically, such as Figure 1 As shown, when the water pressure is within the normal operating range of 0.5MPa to 0.7MPa, the sealing plate 6 is located between the first blocking block 2 and the second blocking block 3. The lower part of the locking block 604 is located in the groove 602, and the upper part of the locking block 604 extends out of the groove 602 and fits against the inner wall of the connecting block 1 to support the sealing plate 6 and ensure the stability of the sealing plate 6. When the water pressure exceeds the normal operating range, in order to ensure that the sealing plate 6 can move smoothly into the second blocking block 3, the end of the blocking ring 3 near the sealing plate 6 is a funnel-shaped opening with an inclination angle A of 30°-45°. During the process of the sealing plate 6 moving towards the second blocking block 3, the inclined edge of the funnel-shaped opening contacts the upper end of the locking block 604 and generates a pressure towards the center of the locking block 604, pressing the locking block 604 down into the groove 602 to ensure that the sealing plate 6 can move smoothly into the second blocking block 3.

[0038] Specifically, such as Figure 2As shown, the cross-section of the slot 301 is a right trapezoid, that is, the side of the slot 301 near the first blocking block 2 is an inclined side with an inclination angle B of 30°-45°, and the side away from the first blocking block 2 is a vertical side. The card block 604 is a combination of a rectangular block and an arc block, wherein the side near the vertical side of the slot 301 is a vertical side that can fit together with the vertical side of the slot 301, preventing the sealing plate 6 from continuing to move to the right. In addition, to ensure that the cuboid fits the inclined edge of the flared opening, the upper end of the vertical side is rounded; the upper part of the block 604 near the inclined edge of the slot 301 is an arc-shaped side, and the lower part is a vertical side. The upper arc-shaped side fits the inclined edge of the slot 301, and the lower vertical side is located in the groove 602 to ensure the stability of the block. When the water pressure gradually decreases, the sealing plate 6 moves to the left under the action of the rebound force of the first elastic element 5. The upper arc-shaped side contacts the inclined edge of the slot 301. The inclined edge generates a downward pressure on the arc-shaped side to press the block 604 down into the groove 602, so that the sealing plate 6 can move smoothly out of the second blocking block 3.

[0039] In another embodiment, such as Figure 5 As shown, the sealing plate 6 is also connected to another sealing plate 6 near the first blocking ring 2 via a connecting column 605. Some water purification systems are also equipped with a flushing component, that is, a booster pump is set at the outlet of the filter component to allow water to flow backward from the outlet of the filter component to the inlet of the filter component, thereby flushing off the impurities remaining on the filter component. When the flushing component increases the water pressure in the reverse direction, the other sealing plate 6 is pushed to move towards the first blocking ring 6. The diameter of the sealing plate 6 is equal to the inner diameter of the first blocking ring 2, and the port of the first blocking ring 2 is also a funnel-shaped opening. The sealing plate 6 near the first blocking ring 2 can move into the first blocking ring 2 and seal it. After the flushing assembly washes away impurities from the filter assembly, the sealing plate 6 is pushed into the first blocking ring 2. The water pressure in the connecting pipe 1 gradually increases. When it exceeds the threshold of the safety pressure valve 105, the safety pressure valve 105 opens, and water and impurities flow out of the connecting pipe 1, effectively cleaning the impurities and preventing them from remaining in the water pipe, thus extending the service life of the filter assembly. Furthermore, cleaning the impurities on the filter assembly does not require disassembly, improving cleaning efficiency. Once the impurities are cleaned, the flushing assembly stops working, the water pressure returns to normal, and the sealing plate 6 moves back out of the first blocking ring 2 under the action of the first elastic element 5, ensuring the normal operation of the entire system.

[0040] Of course, a protrusion is provided on the inner wall of the first blocking member 2. The protrusion is used to limit the displacement of the sealing plate 6, which can prevent the first elastic member 5 from being excessively stretched under the action of the flushing assembly, and can also prevent the sealing plate 6 from moving to the pressure relief end 104 and losing support, thus ensuring the stability of the sealing plate 6 in the connecting pipe 1.

[0041] The following points need to be explained:

[0042] (1) Unless otherwise defined, the same reference numerals in the embodiments and drawings of this disclosure have the same meaning.

[0043] (2) The accompanying drawings of the embodiments of this disclosure only involve the structures involved in the embodiments of this disclosure. Other structures can be referred to the general design.

[0044] (3) For clarity, components or areas are enlarged in the drawings used to describe embodiments of the present disclosure. It will be understood that when an element is referred to as being “above” or “below” another element, the element may be “directly” located “above” or “below” the other element, or there may be an intermediate element.

[0045] The above description is merely a specific embodiment of this disclosure, but the scope of protection of this disclosure is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this disclosure should be included within the scope of protection of this disclosure. Therefore, the scope of protection of this disclosure should be determined by the scope of the claims.

Claims

1. A pressure protection device for a water purification system, characterized by: The system includes a connecting pipe, which has an inlet end, a pressure boosting end, a pressure relief end, and an outlet end arranged sequentially along its axis. The inlet end is connected to a water pipe, the pressure boosting end is connected to the pressure boosting component of the water purification system, the pressure relief end is equipped with a safety pressure valve, and the outlet end is connected to the filter component of the water purification system. The inner wall of the connecting pipe is provided with a first blocking ring and a second blocking ring at intervals. The first blocking ring is located between the pressure boosting end and the pressure relief end, and the second blocking ring is located between the pressure relief end and the outlet end. The second blocking ring is provided with a connecting ring, and the connecting ring is connected to a sealing plate through a first elastic element. The sealing plate is located between the first blocking ring and the second blocking ring, and the diameter of the sealing plate is equal to the inner diameter of the second blocking ring.

2. The water purification system pressure protection device of claim 1, wherein: The outer arc surface of the water sealing plate is provided with a sealing layer.

3. The water purification system pressure protection device of claim 2, wherein: The outer arc surface of the water sealing plate is provided with a plurality of grooves, which are arranged in a circle with the axis of the water sealing plate as the center. Each groove is fitted with a locking block through a second elastic element, and the locking block is fitted and engaged with the second blocking ring.

4. The water purification system pressure protection device of claim 3, wherein: The inner wall of the second blocking ring is provided with a slot that is adapted to engage with the card block.

5. The water purification system pressure protection device of claim 4, wherein: The second blocking ring has a funnel-shaped opening at the end near the water sealing plate.

6. The water purification system pressure protection device of claim 5, wherein: The end face of the connecting ring is provided with a water passage hole.

7. The water purification system pressure protection device of claim 6, wherein: The sealing plate is connected to another sealing plate via a connecting column, and the diameters of both sealing plates are equal to the inner diameter of the first blocking ring.

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