Differential pressure valve with filtering structure

Abstract

The utility model discloses a differential pressure valve with a filter structure, which relates to the technical field of differential pressure valves and comprises a differential pressure valve body, a connecting component is mounted on one side of the differential pressure valve body, a movable filter component is mounted inside the differential pressure valve body, a fixed component is mounted at the top of the movable filter component, and a filter structure is mounted on the fixed component. The filtering device has the advantages that when too many impurities are accumulated on the outer surface of the filtering plate, the connecting plate and the movable plate can be driven to slide in the sliding groove B under the impact force of water flow and reach the position under the movable plate, and the impurities can be filtered out through the gap between the movable plate and the movable plate. The telescopic spring can drive the movable plate to move upwards after losing pressure to make contact with the bottom of the movable plate, the movable spring is used for driving the movable plate to move upwards, and therefore a worker can rapidly know the blocking condition in the differential pressure valve according to the height of the movable plate, and cleaning is conducted in time.

Description

Technical Field

[0001] The utility model relates to the technical field of differential pressure valves, in particular to a differential pressure valve with a filtering structure. Background Art

[0002] A differential pressure valve is a device used to control the pressure difference of a fluid. A differential pressure valve with a filtering effect is often used in liquid or gas pipeline systems to filter out impurities and solid particles and protect pipelines and equipment from damage. This differential pressure valve usually includes a filter or a filter screen, which can effectively filter out impurities in the fluid. At the same time, the pressure difference of the fluid is controlled by adjusting the switch of the valve to ensure the normal operation of the pipeline system.

[0003] After searching, the applicant found that a Chinese patent disclosed "a pressure differential flow switch with a filtering structure", and its publication (announcement) number is "CN208889567U". This patent mainly uses a pressure differential flow switch with a filtering structure, which has a simple and reasonable structure, is easy to use, has low application cost and good adaptability. In this application, when the pressure at the lower valve port is greater than that at the upper valve port, the diaphragm protrudes and drives the lower magnet to rise, and the upper magnet rises synchronously under the action of the magnetic field force of the lower magnet, thereby triggering the micro switch to form an on-off signal; the set filter screen and permanent magnet can effectively prevent impurities and rust from entering the valve body, extending the service life of the pressure differential flow switch, and has a high promotion value. However, in the original document description of the application, the device often gets blocked due to its filtering effect. Usually, it is difficult for staff to find the blockage in the first time, which causes damage to the pressure differential valve. For this reason, we propose a pressure differential valve with a filtering structure. Utility Model Content

[0004] The utility model aims to provide a differential pressure valve with a filtering structure.

[0005] In order to solve the problems raised in the above-mentioned background technology, the utility model provides the following technical solutions: a differential pressure valve with a filtering structure, comprising a differential pressure valve body, a connecting component installed on one side of the differential pressure valve body, and a movable filtering component installed inside the differential pressure valve body, a fixed component installed on the top of the movable filtering component, the movable filtering component comprising a filter plate, a connecting plate and a telescopic spring located on the top of the connecting plate, the top of the filter plate is fixedly connected to the bottom of the connecting plate, a circular hole is opened on the top of the connecting plate, and the bottom of the telescopic spring is fixedly connected to the inside of the circular hole, and a movable plate is fixedly installed on the top of the telescopic spring.

[0006] As a further solution of the utility model: a fixing plate is fixedly installed on one side of the differential pressure valve body, and a slide groove A is opened on the outer surface of the fixing plate, and a water outlet pipe is installed on the other side of the differential pressure valve body.

[0007] As a further solution of the utility model: the connecting component includes a connecting pipe, a limiting plate and a protection frame, the connecting pipe runs through the inside of the limiting plate, and the two are fixedly connected.

[0008] As a further solution of the utility model: the side of the protection frame close to the connecting pipe is fixedly connected to the side of the limiting plate, the limiting plate is fixed to the side of the fixing plate by a threaded bolt, and the fixing plate is located inside the protection frame, a slider is fixedly installed on one side of the limiting plate, and the outer surface of the slider is slidably connected to the inside of the A slide groove.

[0009] As a further solution of the utility model: the fixed component includes a fixed template, a limit block and a movable plate, and the side of the limit block close to the movable plate is fixedly connected to the side surface of the fixed template.

[0010] As a further solution of the utility model: the outer surface of the movable plate is clamped in the interior of the fixed template, a movable spring is fixedly installed on the bottom of the movable plate, a slot hole is opened on the top of the fixed template, and grooves are opened on both sides of the slot hole.

[0011] As a further solution of the utility model: the bottom of the movable plate and the movable spring are respectively located inside the slot hole and the groove, the fixed template is fixed to the outer surface of the water outlet pipe by a fixing bolt, a B slide groove is provided at the bottom of the fixed template, and the top of the connecting plate is slidably connected to the inside of the B slide groove.

[0012] By adopting the above technical solution, compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. When there are too many impurities accumulated on the outer surface of the filter plate, the utility model will drive the connecting plate and the movable plate to slide inside the B chute under the impact force of the water flow and reach the bottom of the movable plate. Through the gap between the movable plate and the movable plate, the telescopic spring will drive the movable plate to move upward after losing pressure, and contact with the bottom of the movable plate, and use the movable spring to drive the movable plate to move upward, so that the staff can quickly understand the blockage inside the differential pressure valve according to the height of the movable plate, and clean it in time;

[0014] 2. The utility model inserts the slider into the interior of the A slide groove through the limit plate, so that the outer surfaces of the limit plate and the fixed plate contact each other, and then rotates the limit plate counterclockwise to make the slider reach the bottom of the A slide groove, and fixes the position between the limit plate and the fixed plate through the threaded bolt, so that the connection between the limit plate and the fixed plate is more secure. Even if the threaded bolt is loose, the slider can effectively prevent the limit plate and the fixed plate from splitting in the first time, and the protective frame can provide good protection for the connection between the two. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is an overall schematic diagram of an embodiment of the utility model;

[0016] Figure 2 This is a schematic diagram of the differential pressure valve body in the embodiment of the utility model;

[0017] Figure 3 This is a schematic diagram of a mobile filter component in an embodiment of the utility model;

[0018] Figure 4 This is a schematic diagram of a fixing component in an embodiment of the utility model;

[0019] Figure 5 This is a schematic diagram of the connecting components in the embodiment of the utility model;

[0020] Figure 6 It is a schematic diagram of a slider in an embodiment of the utility model.

[0021] In the figure: 1. differential pressure valve body; 11. fixed plate; 12. water outlet pipe; 2. connecting component; 21. connecting pipe; 22. limit plate; 23. protection frame; 221. threaded bolt; 222. slider; 3. movable filter component; 31. filter plate; 32. connecting plate; 33. telescopic spring; 331. movable plate; 4. fixed component; 41. fixed template; 42. limit block; 43. movable plate; 431. movable spring. DETAILED DESCRIPTION

[0022] The specific implementation methods of the present invention are further described below in conjunction with the accompanying drawings. It should be noted that the description of these implementation methods is used to help understand the present invention, but does not constitute a limitation of the present invention. In addition, the technical features involved in each implementation method of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0023] Example 1, please refer to the attached Figure 1 -Attached Figure 6 The utility model provides a technical solution: a differential pressure valve with a filtering structure, comprising a differential pressure valve body 1, a connecting component 2 is installed on one side of the differential pressure valve body 1, and a movable filtering component 3 is installed inside the differential pressure valve body 1, a fixing component 4 is installed on the top of the movable filtering component 3, the movable filtering component 3 comprises a filter plate 31, a connecting plate 32 and a telescopic spring 33 located on the top of the connecting plate 32, the top of the filter plate 31 is fixedly connected to the bottom of the connecting plate 32, a circular hole is opened on the top of the connecting plate 32, and the bottom of the telescopic spring 33 is fixedly connected to the inside of the circular hole, and a movable plate 331 is fixedly installed on the top of the telescopic spring 33.

[0024] In this embodiment, a fixing plate 11 is fixedly mounted on one side of the differential pressure valve body 1 , and a sliding groove A is provided on the outer surface of the fixing plate 11 . A water outlet pipe 12 is mounted on the other side of the differential pressure valve body 1 .

[0025] In this embodiment, by setting the protection frame 23, the connection between the limit plate 22 and the fixed plate 11 can be protected to prevent external factors from causing damage to the connection. By setting the threaded bolt 221, the position between the limit plate 22 and the fixed plate 11 can be fixed and split. By setting the slider 222, the connection between the limit plate 22 and the fixed plate 11 is made more secure.

[0026] The connecting component 2 includes a connecting pipe 21 , a limiting plate 22 and a protection frame 23 . The connecting pipe 21 passes through the limiting plate 22 , and the two are fixedly connected.

[0027] The side of the protection frame 23 close to the connecting pipe 21 is fixedly connected to the side of the limiting plate 22. The limiting plate 22 is fixed to the side of the fixing plate 11 by a threaded bolt 221, and the fixing plate 11 is located inside the protection frame 23. A slider 222 is fixedly installed on one side of the limiting plate 22, and the outer surface of the slider 222 is slidably connected to the inside of the A slide groove.

[0028] Specifically, when there are too many impurities accumulated on the outer surface of the filter plate 31, the impact force of the water flow will drive the connecting plate 32 and the movable plate 331 to slide inside the B chute and reach directly below the movable plate 43. Through the gap between the movable plate 43 and the movable plate 331, the telescopic spring 33 will drive the movable plate 331 to move upward after losing pressure, and contact with the bottom of the movable plate 43, and use the movable spring 431 to drive the movable plate 43 to move upward, so that the staff can quickly understand the blockage situation inside the differential pressure valve according to the height of the movable plate 43, and clean it in time.

[0029] Example 2, please refer to the attached Figure 1 -Attached Figure 6 The utility model provides a technical solution: a differential pressure valve with a filtering structure, comprising a differential pressure valve body 1, a connecting component 2 is installed on one side of the differential pressure valve body 1, and a movable filtering component 3 is installed inside the differential pressure valve body 1, a fixing component 4 is installed on the top of the movable filtering component 3, the movable filtering component 3 comprises a filter plate 31, a connecting plate 32 and a telescopic spring 33 located on the top of the connecting plate 32, the top of the filter plate 31 is fixedly connected to the bottom of the connecting plate 32, a circular hole is opened on the top of the connecting plate 32, and the bottom of the telescopic spring 33 is fixedly connected to the inside of the circular hole, and a movable plate 331 is fixedly installed on the top of the telescopic spring 33.

[0030] In this embodiment, by setting the fixed template 41, a sliding space is provided for the connecting plate 32 and the movable plate 331. By setting the limit block 42 in cooperation with the fixing bolt, the fixed template 41 can be fixed on the outer surface of the outlet pipe 12. By setting the movable plate 43 and the movable spring 431, the staff can understand the blockage condition inside the differential pressure valve according to the height of the movable plate 43.

[0031] The fixing component 4 includes a fixing template 41 , a limiting block 42 and a moving plate 43 . A side of the limiting block 42 close to the moving plate 43 is fixedly connected to a side surface of the fixing template 41 .

[0032] The outer surface of the movable plate 43 is clamped to the inside of the fixed template 41 , and a movable spring 431 is fixedly installed at the bottom of the movable plate 43 . A slot is formed at the top of the fixed template 41 , and grooves are formed on both sides of the slot.

[0033] The bottom of the movable plate 43 and the movable spring 431 are respectively located inside the slot and the groove. The fixed template 41 is fixed to the outer surface of the water outlet pipe 12 by a fixing bolt. A B slide groove is opened at the bottom of the fixed template 41, and the top of the connecting plate 32 is slidably connected to the inside of the B slide groove.

[0034] Specifically, the limit plate 22 inserts the slider 222 into the interior of the A slide groove, so that the limit plate 22 and the outer surface of the fixed plate 11 contact each other, and then the limit plate 22 is rotated counterclockwise so that the slider 222 reaches the bottom of the A slide groove, and the position between the limit plate 22 and the fixed plate 11 is fixed by the threaded bolt 221, so that the connection between the limit plate 22 and the fixed plate 11 is more secure. Even if the threaded bolt 221 becomes loose, the slider 222 can be used to effectively prevent the limit plate 22 and the fixed plate 11 from splitting in the first place, and the protective frame 23 can provide a good protection effect on the connection between the two.

[0035] Working principle:

[0036] Step 1: First, the staff inserts the slider 222 into the A chute through the limiting plate 22, and makes the limiting plate 22 and the outer surface of the fixed plate 11 contact each other, and then rotates the slider 222 counterclockwise through the limiting plate 22, so that the slider 222 reaches the bottom of the A chute, and then fixes the position between the limiting plate 22 and the fixed plate 11 through the threaded bolt 221, and at this time, the connection between the fixed plate 11 and the limiting plate 22 is located inside the protective frame 23;

[0037] The second step, finally, when too many impurities are accumulated on the outer surface of the filter plate 31, the impact force of the water flow is used to drive the connecting plate 32 and the movable plate 331 to slide inside the B chute, and the movable plate 331 reaches the bottom of the movable plate 43. At this time, the telescopic spring 33 will drive the movable plate 331 to move upward after losing pressure, and contact with the bottom of the movable plate 43, and then drive the movable plate 43 to move upward through the movable spring 431, and then the staff can loosen the fixing bolt to take out the fixed template 41 and the filter plate 31. At this point, the entire workflow ends.

[0038] The above-mentioned front, back, left, right, top and bottom are all based on the figures in the specification. Figure 1 As a benchmark, according to the person's observation perspective, the side of the device facing the observer is defined as the front, the left side of the observer is defined as the left, and so on.

[0039] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the scope of protection of the present invention.

[0040] It should be noted that the equipment structure and drawings of the utility model mainly describe the principle of the utility model. In terms of the technology of the design principle, the settings of the power mechanism, power supply system and control system of the device are not fully described. On the premise that the technical personnel in this field understand the principle of the above utility model, the details of the power mechanism, power supply system and control system can be clearly known. The control method of the application document is automatic control through a controller, and the control circuit of the controller can be realized by simple programming by the technical personnel in this field;

[0041] The standard parts used therein can all be purchased from the market and can be customized according to the instructions and drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the prior art. The machinery, parts and equipment all adopt conventional models in the prior art, and the structures and principles of the components known to technical personnel in this field can be known by these technical personnel through technical manuals or through conventional experimental methods.

[0042] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. For those skilled in the art, various changes, modifications, substitutions and variations of these embodiments are made without departing from the principles and spirit of the present invention, and still fall within the scope of protection of the present invention.

Claims

1. A differential pressure valve with a filtering structure, comprising a differential pressure valve body (1), characterized in that: A connecting component (2) is installed on one side of the differential pressure valve body (1), and a movable filter component (3) is installed inside the differential pressure valve body (1); a fixing component (4) is installed on the top of the movable filter component (3); the movable filter component (3) comprises a filter plate (31), a connecting plate (32), and a telescopic spring (33) located on the top of the connecting plate (32); the top of the filter plate (31) is fixedly connected to the bottom of the connecting plate (32); a circular hole is opened on the top of the connecting plate (32), and the bottom of the telescopic spring (33) is fixedly connected to the inside of the circular hole; and a movable plate (331) is fixedly installed on the top of the telescopic spring (33).

2. The differential pressure valve with a filtering structure according to claim 1, characterized in that: A fixing plate (11) is fixedly mounted on one side of the differential pressure valve body (1), and a sliding groove A is provided on the outer surface of the fixing plate (11); a water outlet pipe (12) is mounted on the other side of the differential pressure valve body (1).

3. The differential pressure valve with a filtering structure according to claim 1, characterized in that: The connecting component (2) comprises a connecting pipe (21), a limiting plate (22) and a protective frame (23); the connecting pipe (21) passes through the interior of the limiting plate (22), and the two are fixedly connected.

4. The differential pressure valve with a filtering structure according to claim 3, characterized in that: A side of the protection frame (23) close to the connecting pipe (21) is fixedly connected to a side of the limiting plate (22); the limiting plate (22) is fixed to a side of the fixing plate (11) via a threaded bolt (221); the fixing plate (11) is located inside the protection frame (23); a sliding block (222) is fixedly mounted on one side of the limiting plate (22); an outer surface of the sliding block (222) is slidably connected to the inside of the A slide groove.

5. The differential pressure valve with a filtering structure according to claim 1, characterized in that: The fixing component (4) comprises a fixing template (41), a limiting block (42) and a movable plate (43); a side of the limiting block (42) close to the movable plate (43) is fixedly connected to a side surface of the fixing template (41).

6. The differential pressure valve with a filtering structure according to claim 5, characterized in that: The outer surface of the movable plate (43) is clamped to the inside of the fixed template (41); a movable spring (431) is fixedly mounted on the bottom of the movable plate (43); a slot hole is formed on the top of the fixed template (41), and grooves are formed on both sides of the slot hole.

7. The differential pressure valve with a filtering structure according to claim 5, characterized in that: The bottoms of the movable plate (43) and the movable spring (431) are respectively located inside the slot hole and the groove; the fixed template (41) is fixed to the outer surface of the water outlet pipe (12) via a fixing bolt; a B slide groove is provided at the bottom of the fixed template (41); and the top of the connecting plate (32) is slidably connected to the inside of the B slide groove.

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