Self-operated pressure regulating valve with filtering structure convenient to maintain

Abstract

The utility model discloses a self-operated pressure regulating valve with a filtering structure convenient to maintain, which comprises a regulating valve body, a water inlet pipe capable of being fixedly connected to one end of the regulating valve body, a water outlet pipe capable of being fixedly connected to the other end of the regulating valve body, and a filtering box capable of being mounted on the water outlet pipe, the mounting groove is formed in the upper end of the filter box, the sealing gasket is placed on the bottom surface of the mounting groove, the box cover is clamped in the mounting groove, and the handle can be fixedly mounted on the upper surface of the box cover. According to the self-operated pressure regulating valve with the filtering structure convenient to maintain, when a filtering assembly in the filtering box needs to be replaced and maintained, a fixing block is pulled upwards, so that a round clamping rod is separated from round clamping grooves formed in the surfaces of the two ends in the butt joint block and close to the lower end, and then a handle is pulled upwards; and therefore, the filter assembly is simple and trouble-saving.

Description

Technical Field

[0001] This utility model relates to the field of self-operated pressure regulating valve technology, and in particular to a self-operated pressure regulating valve with a filter structure that is easy to maintain. Background Technology

[0002] Self-operated pressure regulating valves are intelligent valves that require no external energy source. They rely on the pressure of the medium flowing through the valve itself to drive the valve to work automatically. They do not require an external power supply or secondary instruments. They are divided into three series: self-operated pressure, differential pressure, and flow regulating valves. When the system pressure changes, the valve automatically opens or closes to maintain the set pressure value. Depending on the location of the pressure tap, self-operated pressure regulating valves can be divided into two categories: upstream and downstream. When the pressure tap is upstream, it is used to maintain a constant upstream pressure; when the pressure tap is downstream, it is used to maintain a constant downstream pressure. Self-operated pressure regulating valves have wide applications in various industrial fields, especially in systems requiring automatic pressure regulation and control, such as heating, air conditioning, and water treatment. However, currently, to prevent corrosion from particulate impurities in the water and to prevent these impurities from adhering to the valve blades, a filter structure is installed to filter the water. However, the filter structure is usually welded to the water pipe, making it inconvenient to replace and maintain the filter components. Utility Model Content

[0003] The main purpose of this utility model is to provide a self-operated pressure regulating valve with a convenient filter structure, which can effectively solve the problems in the background art.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0005] A self-regulating pressure regulating valve with a convenient filtration structure includes a regulating valve body. One end of the regulating valve body is fixedly connected to an inlet pipe, and the other end is fixedly connected to an outlet pipe. A filter box is installed on the outlet pipe. The filter box has an installation groove at its upper end, and a sealing gasket is placed on the bottom surface of the installation groove. A box cover is engaged in the installation groove. A handle is fixedly installed on the upper surface of the box cover, and a filter assembly is provided on the lower surface of the box cover. A connecting plate is fixedly installed on the lower surface of the filter assembly. A connection structure is provided between the box cover and the front and rear ends of the filter box.

[0006] Preferably, the connection structure includes a fixed block, a first rod, an L-shaped block, a docking block, a first circular groove, a first return spring, a first circular slider, a rectangular groove, a circular slot, a circular locking rod, a second circular groove, a second circular slider, a second return spring, a circular rod, a rectangular block, and a wedge block.

[0007] Preferably, the filter box is fixedly installed with docking blocks on both the front and rear surfaces, and the box cover is fixedly installed with L-shaped blocks on both the front and rear surfaces. The docking blocks are inserted into the L-shaped blocks, and a circular groove is formed inside the L-shaped blocks.

[0008] Preferably, a circular slider is slidably installed in the first circular groove, and a circular slider is fixedly installed on the lower end of the outer surface of the first rod near the middle. A return spring is sleeved on the upper end of the circular slider on the outer surface of the first rod.

[0009] Preferably, a rectangular block is fixedly installed on the lower surface of the first rod, and a wedge block is fixedly installed on the lower surface of the rectangular block. A rectangular groove is opened at the lower end of the first circular groove inside the L-shaped block, and a second circular groove is opened on both ends of the rectangular groove.

[0010] Preferably, a second circular slider is slidably installed in the second circular groove, a circular rod is fixedly installed on the middle of the other end surface of the second circular slider, and a circular locking rod is fixedly installed on the middle of one end surface of the second circular slider.

[0011] Preferably, a second reset spring is fitted onto one end of a second circular slider on the outer surface of the circular lever, and circular slots are provided on both ends of the inner surface of the docking block near the lower end, with a circular lever inserted into the circular slot.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] In this utility model, the connection structure allows for easy replacement and maintenance of the filter components inside the filter box. By pulling the fixing block upwards, the circular locking rod disengages from the circular slots near the lower end of the inner surfaces of the connecting block. Then, by pulling the handle upwards, the filter components can be removed, which is simple and convenient. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of a self-operated pressure regulating valve with a convenient filter structure according to the present invention.

[0015] Figure 2 This is a cross-sectional view of a component of a self-operated pressure regulating valve with a convenient filter structure according to the present invention.

[0016] Figure 3 This is a partial cross-sectional view of a component of a self-operated pressure regulating valve with a convenient filter structure according to the present invention.

[0017] Figure 4 This utility model relates to a self-operated pressure regulating valve with a convenient filter structure for easy maintenance. Figure 3 Enlarged view of point A in the middle.

[0018] In the diagram: 1. Regulating valve body; 2. Outlet pipe; 3. Inlet pipe; 4. Filter box; 401. Handle; 402. Box cover; 403. Mounting groove; 404. Sealing gasket; 405. Filter assembly; 406. Connecting plate; 5. Connecting structure; 501. Fixing block; 502. Rod No. 1; 503. L-shaped block; 504. Connecting block; 505. Circular slide groove No. 1; 506. Return spring No. 1; 507. Circular slider No. 1; 508. Rectangular groove; 509. Circular slot; 510. Circular rod; 511. Circular slide groove No. 2; 512. Circular slider No. 2; 513. Return spring No. 2; 514. Circular rod; 515. Rectangular block; 516. Wedge block. Detailed Implementation

[0019] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0020] Participation Figure 1-4 As shown, a self-regulating pressure regulating valve with a convenient filtration structure includes a regulating valve body 1. One end of the regulating valve body 1 is fixedly connected to an inlet pipe 3, and the other end is fixedly connected to an outlet pipe 2. A filter box 4 is installed on the outlet pipe 2. The filter box 4 has an installation groove 403 at its upper end. A sealing gasket 404 is placed on the bottom surface of the installation groove 403. The sealing gasket 404 is made of rubber and can deform to a certain extent. A box cover 402 is fitted inside the installation groove 403. A handle 401 is fixedly installed on the upper surface of the box cover 402. A filter assembly 405 is provided on the lower surface of the box cover 402. The filter assembly 405 is composed of a PP cotton filter element and an activated carbon filter element. A connecting plate 406 is fixedly installed on the lower surface of the filter assembly 405. A connecting structure 5 is provided between the box cover 402 and the filter box 4 at the front and rear ends.

[0021] Specifically, the PP cotton filter element and activated carbon filter in the filter assembly 405 are used to filter and adsorb particulate impurities in the water; the cover 402 is engaged in the mounting groove 403 and squeezes the sealing gasket 404 to seal the filter box 4.

[0022] Participation Figure 2-4As shown, the connecting structure 5 includes a fixed block 501, a first rod 502, an L-shaped block 503, a docking block 504, a first circular slide groove 505, a first reset spring 506, a first circular slider 507, a rectangular groove 508, a circular slot 509, a circular locking rod 510, a second circular slide groove 511, a second circular slider 512, a second reset spring 513, a circular rod 514, a rectangular block 515, and a wedge block 516. The front and rear surfaces of the filter box 4 are fixedly installed with docking blocks 504, and the front and rear surfaces of the box cover 402 are fixedly installed with L-shaped blocks 503. The L-shaped blocks 503 are inserted into the docking blocks 504, and the first circular slide groove 505 is opened inside the L-shaped blocks 503.

[0023] Specifically, by setting the mating block 504 and the L-shaped block 503, during use, the L-shaped block 503, which is fixedly installed on the front and rear surfaces of the cover 402, is manually inserted into the mating block 504, and the sealing gasket 404 in the mounting groove 403 is squeezed to limit the position of the cover 402.

[0024] Participation Figure 2-4 As shown, a circular slider 507 is slidably installed in a circular groove 505. A circular slider 507 is fixedly installed on the lower end of the outer surface of a rod 502 near the middle. A reset spring 506 is sleeved on the upper end of the circular slider 507 on the outer surface of the rod 502. A rectangular block 515 is fixedly installed on the lower surface of the rod 502. A wedge block 516 is fixedly installed on the lower surface of the rectangular block 515. A rectangular groove 508 is opened at the lower end of the circular groove 505 inside the L-shaped block 503. A second circular groove 511 is opened on both ends of the rectangular groove 508.

[0025] Specifically, the elastic force of the first reset spring 506 drives the first circular slider 507 to slide to the bottom of the first circular groove 505, causing the first rod 502 to move the rectangular block 515 and the wedge block 516 to the bottom of the rectangular groove 508 and squeeze the circular rod 514. At the same time, the second circular slider 512 slides in the second circular groove 511 to squeeze the second reset spring 513, thereby causing the circular locking rod 510 to be inserted into the circular locking groove 509.

[0026] Participation Figure 2-4 As shown, a second circular slider 512 is slidably installed in the second circular groove 511. A circular rod 514 is fixedly installed in the middle of the other end surface of the second circular slider 512. A circular locking rod 510 is fixedly installed in the middle of one end surface of the second circular slider 512. A second return spring 513 is sleeved on one end of the second circular slider 512 on the outer surface of the circular locking rod 510. Circular slots 509 are opened on both ends of the inner surface of the connecting block 504 near the lower end. Circular locking rods 510 are inserted into the circular slots 509.

[0027] Specifically, the elastic force of the first reset spring 506 drives the first circular slider 507 to slide to the bottom of the first circular groove 505, causing the first rod 502 to move the rectangular block 515 and the wedge block 516 to the bottom of the rectangular groove 508 and press the circular rod 514. At the same time, the second circular slider 512 slides in the second circular groove 511 and presses the second reset spring 513, thereby causing the circular locking rod 510 to be inserted into the circular locking groove 509, fixing the L-shaped block 503 in the docking block 504 and limiting the L-shaped block 503, thereby fixing the box cover 402.

[0028] It should be noted that this utility model is a self-operated pressure regulating valve with a convenient filter structure. When it is necessary to replace or maintain the filter assembly 405 inside the filter box 4, the fixing block 501 is pulled upwards, causing the fixing block 501 to drive the first circular slider 507, which is fixedly installed near the lower end of the outer surface of the first rod 502, to slide upwards within the first circular groove 505, and to compress the first return spring 506. This causes the rectangular block 515, which is fixedly installed on the lower surface of the first rod 502, to drive the wedge block 516 to move upwards. Under the action of the second reset spring 513, the second circular slider 512 is driven to slide in the second circular groove 511. This causes the circular locking rod 510, which is fixedly installed in the middle of one end of the second circular slider 512, to disengage from the circular locking groove 509 opened at the lower end of both ends of the inner surface of the docking block 504. Then, the handle 401 is pulled upwards, causing the L-shaped block 503, which is fixedly installed on the front and rear surfaces of the cover 402, to disengage from the docking block 504, which is fixedly installed on the front and rear surfaces of the filter box 4. The filter assembly 405 can then be taken out, which is simple and convenient.

[0029] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A self-operated pressure regulating valve with a convenient filter structure, characterized in that: The device includes a regulating valve body (1), one end of which is fixedly connected to an inlet pipe (3), and the other end of which is fixedly connected to an outlet pipe (2). A filter box (4) is installed on the outlet pipe (2). An installation groove (403) is provided on the upper end of the filter box (4). A sealing gasket (404) is placed on the bottom surface of the installation groove (403). A box cover (402) is fitted inside the installation groove (403). A handle (401) is fixedly installed on the upper surface of the box cover (402). A filter assembly (405) is provided on the lower surface of the box cover (402). A connecting plate (406) is fixedly installed on the lower surface of the filter assembly (405). A connection structure (5) is provided between the box cover (402) and the filter box (4) at the front and rear ends.

2. The self-operated pressure regulating valve with a convenient filter structure according to claim 1, characterized in that: The connecting structure (5) includes a fixed block (501), a first rod (502), an L-shaped block (503), a docking block (504), a first circular slide groove (505), a first reset spring (506), a first circular slider (507), a rectangular groove (508), a circular slot (509), a circular locking rod (510), a second circular slide groove (511), a second circular slider (512), a second reset spring (513), a circular rod (514), a rectangular block (515), and a wedge block (516).

3. The self-operated pressure regulating valve with a convenient filter structure according to claim 2, characterized in that: The filter box (4) is fixedly installed with docking blocks (504) on both the front and rear surfaces. The box cover (402) is fixedly installed with L-shaped blocks (503) on both the front and rear surfaces. The docking blocks (504) are inserted with L-shaped blocks (503). The L-shaped blocks (503) have a circular groove (505) inside.

4. The self-operated pressure regulating valve with a convenient filter structure according to claim 3, characterized in that: A circular slider (507) is slidably installed in the first circular groove (505). A circular slider (507) is fixedly installed on the lower end of the outer surface of the first rod (502) near the middle. A reset spring (506) is sleeved on the upper end of the first circular slider (507) on the outer surface of the first rod (502).

5. The self-operated pressure regulating valve with a convenient filter structure according to claim 4, characterized in that: A rectangular block (515) is fixedly installed on the lower surface of the first rod (502), and a wedge block (516) is fixedly installed on the lower surface of the rectangular block (515). A rectangular groove (508) is opened at the lower end of the first circular groove (505) inside the L-shaped block (503), and a second circular groove (511) is opened on both ends of the rectangular groove (508).

6. The self-operated pressure regulating valve with a convenient filter structure according to claim 5, characterized in that: A second circular slider (512) is slidably installed in the second circular groove (511). A circular rod (514) is fixedly installed in the middle of the other end surface of the second circular slider (512). A circular locking rod (510) is fixedly installed in the middle of one end surface of the second circular slider (512).

7. A self-operated pressure regulating valve with a convenient filter structure according to claim 6, characterized in that: A second reset spring (513) is fitted on one end of a second circular slider (512) on the outer surface of the circular lever (510). Circular slots (509) are opened on both ends of the inner surface of the docking block (504) near the lower end. A circular lever (510) is inserted into the circular slot (509).

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