Filter for pressure reducing valve group

Abstract

The filter for the pressure reducing valve group comprises a communicating main body and a filter body obliquely arranged on the side wall of the communicating main body, a baffle is arranged on the inner side of the communicating main body and divides an inner cavity of the communicating main body into a water inlet chamber and a water outlet chamber, and the filter body obliquely faces one side of the water inlet chamber. The end of the filter body is in threaded connection with a blocking cover, a filter screen is arranged in the filter body, the two ends of the filter screen abut against the baffle and the blocking cover respectively, the two ends of the filter screen are open, an impurity discharging hole is formed in the center of the blocking cover in a penetrating mode, and the impurity discharging plug is embedded into the impurity discharging hole. When many impurities are accumulated in the filter body, an operator only needs to take out the impurity discharging plug from the impurity discharging hole, and then the impurities accumulated in the filter body can be discharged through the impurity discharging hole under the action of water flow. In conclusion, the filter has the advantages of being convenient to operate in the impurity removing process and high in removing efficiency.

Description

Technical Field

[0001] The utility model relates to a marine pressure reducing valve group accessory, in particular to a filter for the pressure reducing valve group. Background Art

[0002] At present, a Chinese patent with the announcement number CN204328044U discloses a filter ball valve for floor heating equipment, including a tubular valve housing, with a water inlet and a water outlet respectively provided at both ends of the valve housing. A filter cylinder is obliquely arranged at the middle side wall of the valve housing, and both ends of the filter cylinder are open and connected to the valve housing. One end of the filter cylinder extends into the valve housing and is provided with a baffle that can block the inside of the valve housing, and the other end of the filter cylinder is provided with a filter plug. The side of the filter cylinder is provided with a through hole that can connect the water inlet with the water outlet. A cylindrical filter screen is provided in the filter cylinder, and one end of the filter screen is open and faces the inside of the valve housing, and the other end is closed.

[0003] During the use of the ball valve, impurities blocked by the filter will remain in the filter. As the use time increases, the impurities collected in the filter gradually increase, and the filtering effect of the filter gradually weakens, so the operator needs to regularly remove the impurities in the filter.

[0004] However, when removing impurities from the filter, the operator is first required to unscrew the filter plug, and then the operator is required to remove the filter from the filter cylinder. The operation is relatively cumbersome and the cleaning efficiency is low. Summary of the invention

[0005] In view of this, the purpose of the utility model is to provide a filter for a pressure reducing valve group, which has the advantages of convenient operation of impurity removal process and high removal efficiency.

[0006] In order to solve the above technical problems, the technical solution of the utility model is: a filter for a pressure reducing valve group, comprising a connecting body and a filter body obliquely arranged at the side wall of the connecting body, a baffle is arranged on the inner side of the connecting body, the baffle divides the inner cavity of the connecting body into a water inlet chamber and a water outlet chamber, the filter body is inclined toward the side of the water inlet chamber, the end of the filter body is threadedly connected with a baffle, a filter screen is arranged in the filter body, the two ends of the filter screen are respectively pressed against the baffle and the baffle cover, the water inlet chamber and the water outlet chamber are connected through the filter screen, the two ends of the filter screen are both open, a debris discharge hole is penetrated at the center of the baffle cover, the debris discharge hole is connected to the inner cavity of the filter screen, and also includes a debris discharge plug, which is embedded in the debris discharge hole.

[0007] Through the above technical solution, when in use, the water flows through the water inlet chamber, the inner cavity of the filter net and the water outlet chamber in sequence. When the water flows through the filter net, the filter net can filter the impurities mixed in the water flow, so that the impurities remain in the filter body. When a large amount of impurities accumulate in the filter body, the operator only needs to remove the impurity discharge plug from the impurity discharge hole, and then the impurities accumulated in the filter body can be discharged through the impurity discharge hole under the action of the water flow. In summary, the above filter has the advantages of convenient operation of the impurity removal process and high removal efficiency.

[0008] Preferably, a threaded hole is provided at the end of the blocking cover away from the filter body, the inner diameter of the threaded hole is larger than the inner diameter of the debris removal hole, and the threaded hole is coaxially connected to the debris removal hole, and a threaded connecting column is provided at the end of the debris removal plug, and the threaded connecting column is threadedly connected to the threaded hole.

[0009] Through the above technical solution, the threaded hole and the threaded connecting column cooperate with each other, which can improve the connection stability of the debris removal plug, so that the debris removal plug is not easy to fall out of the debris removal hole during use.

[0010] Preferably, a pressure block is provided at the end of the threaded connection column, the outer diameter of the pressure block is larger than the outer diameter of the threaded connection column, and a sealing ring is sleeved on the outer side of the threaded connection column, and the pressure block presses and fixes the sealing ring to the blocking cover.

[0011] Through the above technical solution, the pressing block presses and fixes the sealing ring to the blocking cover, so as to seal the gap between the pressing block and the blocking cover, thereby improving the sealing performance of the above filter.

[0012] Preferably, a debris removal ring is provided at the end of the debris removal plug, and the outer wall of the debris removal ring is tightly pressed against the debris removal hole.

[0013] Through the above technical solution, when the debris removal plug is controlled to move inside the debris removal hole, the debris removal plug can clean the inner wall of the debris removal hole through the debris removal ring.

[0014] Preferably, an annular guide surface is formed on the inner side of the impurity removing ring, and the inner diameter of the annular guide surface gradually decreases toward one side of the blocking cover.

[0015] Through the above technical solution, the annular guide surface can collect the scraped impurities, so that the impurities can be centrally processed later.

[0016] Preferably, a cleaning ring is slidably provided on the inner side of the filter screen, the outer wall of the cleaning ring is in contact with the inner wall of the filter screen, a power plate is radially provided on the inner side of the cleaning ring, a support spring is provided between the power plate and the blocking cover, and the support spring is used to apply an elastic force to the cleaning ring toward one side of the water inlet chamber through the power plate.

[0017] According to the above technical solution, when water flows in the filter body, the cleaning ring can be driven by the power plate to move toward the side of the baffle to clean the inner wall of the filter. When the water stops flowing, the support spring can drive the cleaning ring away from the baffle through the power plate to clean the inner wall of the filter again.

[0018] Preferably, the central axis of the support spring coincides with the central axis of the debris removal hole, and the inner circle width of the support spring is greater than the aperture of the debris removal hole.

[0019] Through the above technical solution, the central axis of the support ring coincides with the central axis of the debris removal hole, so that the spring is not easily skewed during the process of rotating the blocking cover.

[0020] Preferably, a guide rib is axially arranged on the inner wall of the filter screen, a guide notch is opened on the outer wall of the cleaning ring, and the guide rib is slidably connected in the guide notch.

[0021] Through the above technical solution, the guide ribs and the guide notches cooperate with each other to limit and guide the movement of the cleaning ring, so that the cleaning ring is not prone to circumferential rotation. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of an embodiment;

[0023] Figure 2 for Figure 1 Enlarged view of part A.

[0024] Figure numerals: 1. connecting body; 2. filter body; 3. baffle; 4. water inlet chamber; 5. water outlet chamber; 6. baffle cover; 7. filter screen; 8. drainage hole; 9. drainage plug; 10. threaded hole; 11. threaded connecting column; 12. pressure block; 13. sealing ring; 14. debris removal ring; 15. annular guide surface; 16. cleaning ring; 17. power plate; 18. support spring; 19. guide rib; 20. guide notch. Implementation

[0025] The specific implementation modes of the present invention are further described below in conjunction with the accompanying drawings to make the technical solutions of the present invention easier to understand and grasp.

[0026] A filter for a pressure reducing valve group, such as Figure 1 , Figure 2As shown, it includes a connecting body 1 and a filter body 2 obliquely arranged at the side wall of the connecting body 1. A baffle 3 is arranged on the inner side of the connecting body 1, and the baffle 3 divides the inner cavity of the connecting body 1 into a water inlet chamber 4 and a water outlet chamber 5. The filter body 2 is inclined toward the side of the water inlet chamber 4. A baffle 6 is threadedly connected to the end of the filter body 2. A filter screen 7 is arranged in the filter body 2, and the two ends of the filter screen 7 are respectively pressed against the baffle 3 and the baffle 6, and the water inlet chamber 4 is connected to the water outlet chamber 5 through the filter screen 7.

[0027] When in use, water flows sequentially through the water inlet chamber 4, the inner cavity of the filter screen 7 and the water outlet chamber 5. When the water flows through the filter screen 7, the filter screen 7 can filter the impurities mixed in the water, so that the impurities stay in the filter body 2.

[0028] Both ends of the filter screen 7 are open. A debris removal hole 8 is provided through the center of the blocking cover 6, and the debris removal hole 8 is connected to the inner cavity of the filter screen 7. A debris removal plug 9 is also included, and the debris removal plug 9 is embedded in the debris removal hole 8.

[0029] A threaded hole 10 is provided at the end of the blocking cover 6 away from the filter body 2. The inner diameter of the threaded hole 10 is larger than the inner diameter of the impurity removal hole 8, and the threaded hole 10 is coaxially connected with the impurity removal hole 8. A threaded connecting column 11 is provided at the end of the impurity removal plug 9, and the threaded connecting column 11 is threadedly connected to the threaded hole 10.

[0030] A pressing block 12 is provided at the end of the threaded connection column 11 , and the outer diameter of the pressing block 12 is larger than the outer diameter of the threaded connection column 11 . A sealing ring 13 is sleeved on the outer side of the threaded connection column 11 , and the pressing block 12 presses the sealing ring 13 to fix it to the blocking cover 6 .

[0031] The end of the impurity removal plug 9 is provided with an impurity removal ring 14, the outer wall of which is tightly against the impurity removal hole 8. An annular guide surface 15 is formed inside the impurity removal ring 14, and the inner radial direction of the annular guide surface 15 gradually decreases toward one side of the stop cover 6.

[0032] A cleaning ring 16 is slidably disposed inside the filter 7, the outer wall of the cleaning ring 16 is in contact with the inner wall of the filter 7, a power plate 17 is radially disposed inside the cleaning ring 16, a support spring 18 is disposed between the power plate 17 and the stop cover 6, and the support spring 18 is used to apply an elastic force to the cleaning ring 16 toward the side of the water inlet chamber 4 through the power plate 17. The central axis of the support spring 18 coincides with the central axis of the impurity discharge hole 8, and the inner circle width of the support spring 18 is greater than the aperture of the impurity discharge hole 8.

[0033] A guide rib 19 is axially arranged on the inner wall of the filter screen 7 , and a guide notch 20 is provided on the outer wall of the cleaning ring 16 . The guide rib 19 is slidably connected in the guide notch 20 .

[0034] Of course, the above are only typical examples of the present invention. In addition, the present invention may have many other specific implementations. Any technical solutions formed by equivalent replacement or equivalent transformation fall within the scope of protection required by the present invention.

Claims

1. A filter for a pressure reducing valve assembly, comprising a connecting body (1), a filter body (2) obliquely arranged at a side wall of the connecting body (1), a baffle (3) being arranged on the inner side of the connecting body (1), the baffle (3) dividing the inner cavity of the connecting body (1) into a water inlet chamber (4) and a water outlet chamber (5), the filter body (2) being inclined toward one side of the water inlet chamber (4), a baffle (6) being threadedly connected to an end of the filter body (2), a filter screen (7) being arranged in the filter body (2), two ends of the filter screen (7) respectively pressing against the baffle (3) and the baffle (6), the water inlet chamber (4) and the water outlet chamber (5) being connected through the filter screen (7), wherein: Both ends of the filter screen (7) are open, and a debris removal hole (8) is provided through the center of the blocking cover (6), the debris removal hole (8) is communicated with the inner cavity of the filter screen (7), and also includes a debris removal plug (9), and the debris removal plug (9) is embedded in the debris removal hole (8).

2. A filter for a pressure reducing valve assembly according to claim 1, characterized in that: A threaded hole (10) is provided at the end of the blocking cover (6) away from the filter body (2); the inner diameter of the threaded hole (10) is larger than the inner diameter of the impurity removal hole (8), and the threaded hole (10) is coaxially connected to the impurity removal hole (8); a threaded connection column (11) is provided at the end of the impurity removal plug (9), and the threaded connection column (11) is threadedly connected to the threaded hole (10).

3. A filter for a pressure reducing valve assembly according to claim 2, characterized in that: A pressing block (12) is provided at the end of the threaded connection column (11), the outer diameter of the pressing block (12) is larger than the outer diameter of the threaded connection column (11), a sealing ring (13) is sleeved on the outer side of the threaded connection column (11), and the pressing block (12) presses and fixes the sealing ring (13) to the blocking cover (6).

4. The filter for a pressure reducing valve assembly according to claim 1, characterized in that: An impurity removal ring (14) is provided at the end of the impurity removal plug (9), and the outer wall of the impurity removal ring (14) is tightly abutted against the impurity removal hole (8).

5. The filter for a pressure reducing valve assembly according to claim 4, characterized in that: An annular guide surface (15) is formed on the inner side of the impurity removing ring (14), and the inner diameter of the annular guide surface (15) gradually decreases toward one side of the blocking cover (6).

6. The filter for a pressure reducing valve assembly according to claim 1, characterized in that: A cleaning ring (16) is slidably arranged on the inner side of the filter screen (7), the outer wall of the cleaning ring (16) is in contact with the inner wall of the filter screen (7), a power plate (17) is radially arranged on the inner side of the cleaning ring (16), a supporting spring (18) is arranged between the power plate (17) and the blocking cover (6), and the supporting spring (18) is used to apply an elastic force to the cleaning ring (16) toward one side of the water inlet chamber (4) through the power plate (17).

7. A filter for a pressure reducing valve assembly according to claim 6, characterized in that: The central axis of the support spring (18) coincides with the central axis of the debris removal hole (8), and the inner circle width of the support spring (18) is greater than the hole diameter of the debris removal hole (8).

8. The filter for a pressure reducing valve assembly according to claim 6, characterized in that: A guide rib (19) is axially arranged on the inner wall of the filter screen (7), a guide notch (20) is provided on the outer wall of the cleaning ring (16), and the guide rib (19) is slidably connected in the guide notch (20).

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