Multifunctional adjustable pressure reducing valve

Abstract

The utility model belongs to the technical field of valves, and particularly relates to a multifunctional adjustable pressure reducing valve which comprises a valve body, a water inlet and a first water outlet are arranged on the valve body, a liquid channel communicated with the water inlet and the first water outlet is arranged in the valve body, an adjustable pressure stabilizing valve is arranged on the valve body, and the first water outlet is communicated with the adjustable pressure stabilizing valve. The adjustable pressure maintaining valve is located above the first water outlet and used for reducing the water inlet pressure of the water inlet, a one-way valve is arranged between the water inlet and the adjustable pressure maintaining valve and located in the liquid channel, a second water outlet is formed in the valve body and communicated with the liquid channel, and the first water outlet is communicated with the adjustable pressure maintaining valve. The utility model aims to provide the multifunctional adjustable pressure reducing valve which is reasonable in structure, can reduce sudden change of pressure in the valve body, eliminates medium reverse flow, and can adjust the pressure in the valve body.

Description

TECHNICAL FIELD

[0001] The utility model belongs to valve technical field, especially point to a kind of multifunctional adjustable pressure reducing valve. BACKGROUND

[0002] The main role of pressure reducing valve is to reduce the import pressure to set export pressure by adjusting pressure, and rely on the energy of medium itself, so that export pressure is automatically kept stable.

[0003] Such as the Chinese patent with the publication number CN220470637U discloses a pressure reducing valve, including valve body, the valve body is equipped with water inlet and water outlet, is equipped with pressure regulating valve core in the middle of valve body, pressure regulating valve core is equipped with locking screw, adjusting hand wheel, valve cover, adjusting lever, adjusting disc, pressure regulating spring and cutoff assembly with isolation membrane from top to bottom along axis;Pressure regulating spring is arranged between adjusting disc and isolation membrane, rotating adjusting lever drives adjusting disc to slide up and down, to adjust the compression amount of pressure regulating spring.

[0004] The above technical scheme at least has the following defects: the pressure reducing valve is generally single-function pressure reducing valve, commonly used for controlling water pressure, when downstream water user is suddenly closed, water hammer is easily generated in pipeline, leading to the pressure of pressure reducing valve is instantaneously increased, which easily reduces the service life of valve and pipeline. In addition, the pressure of container connected to the rear of pressure reducing valve can be greater than the pressure in pressure reducing valve, so that medium flows back to pressure reducing valve, leading to reverse rotation of driving motor or leakage of container medium. Therefore, in order to solve these problems of pressure reducing valve in actual use, it is urgent to provide a pressure reducing valve which can solve the problems of pressure sudden change and medium backflow. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a multifunctional adjustable pressure reducing valve with reasonable structure, which can reduce pressure sudden change in valve body, eliminate medium backflow and adjust the pressure in valve body.

[0006] The utility model is realized by the following way:

[0007] A multifunctional adjustable pressure reducing valve, including valve body, the valve body is equipped with water inlet and first water outlet, the valve body is equipped with liquid passage for connecting water inlet and first water outlet, and the valve body is equipped with adjustable pressure regulating valve, the adjustable pressure regulating valve is located above first water outlet, for reducing water pressure of water inlet, and one-way valve is arranged between water inlet and adjustable pressure regulating valve, the one-way valve is located in liquid passage, the valve body is equipped with second water outlet, the second water outlet is communicated with liquid passage, and safety valve is detachably arranged on the second water outlet.

[0008] In the multifunctional adjustable pressure reducing valve, the adjustable pressure regulating valve comprises a valve core, a valve rod, a valve cap, a sealing elastic diaphragm, a spring, an adjusting nut, an adjusting screw rod and a rotating hand wheel, the valve core is located in the valve body, the valve cap is connected with the valve body and fixes the sealing elastic diaphragm on the valve core, the valve rod is arranged in the valve core and connected with the adjusting nut through the spring, the adjusting screw rod is adjustably connected with the adjusting nut, and the upper end of the adjusting screw rod is connected with the rotating hand wheel through the valve cap, and the rotating hand wheel can control the water outlet gap between the valve rod and the valve core.

[0009] In the multifunctional adjustable pressure reducing valve, the sealing elastic diaphragm and the spring are separated by a gasket, and the gasket is connected with the valve rod.

[0010] In the multifunctional adjustable pressure reducing valve, the valve cap is provided with locking external teeth, the rotating hand wheel is provided with locking internal teeth matched with the locking external teeth, the end of the adjusting screw rod extending out of the valve cap is provided with linkage external teeth, the rotating hand wheel is provided with linkage internal teeth matched with the linkage external teeth, the circumferential side of the valve cap is provided with an axial limiting ring groove, and the rotating hand wheel is provided with axial limiting teeth matched with the axial limiting ring groove.

[0011] In the multifunctional adjustable pressure reducing valve, the valve core is provided with a filter screen.

[0012] In the multifunctional adjustable pressure reducing valve, the safety valve is provided with a clamping ring groove on the circumferential side, the valve body is provided with an arc-shaped notch, the arc-shaped notch is arranged close to the second water outlet, and the safety valve is fixed by being inserted into the second water outlet and being clamped by a U-shaped clamp inserted into the arc-shaped notch and the clamping ring groove, and one side of the safety valve is provided with a third water outlet.

[0013] In the multifunctional adjustable pressure reducing valve, the valve body is further provided with a fourth water outlet and a fifth water outlet, and the fourth water outlet and / or the fifth water outlet are provided with plugs.

[0014] In the multifunctional adjustable pressure reducing valve, the valve body is further provided with a pressure gauge mounting hole.

[0015] In the multifunctional adjustable pressure reducing valve, the valve body is provided with a switch close to the water inlet.

[0016] In the multifunctional adjustable pressure reducing valve, the switch is a ball valve or a gate valve.

[0017] Compared with the prior art, the multifunctional adjustable pressure reducing valve has the following beneficial and outstanding technical effects:

[0018] The utility model discloses a valve body is provided with the water inlet and first water outlet and second water outlet, wherein, liquid enters from the water inlet and passes through check valve, then passes through pressure regulating valve and adjusts water pressure, finally discharges from the first water outlet, and the second water outlet is provided with safety valve, and the safety valve is designed to when the water pressure in the valve body is too large, liquid can discharge from the third water outlet on the safety valve, so that the pressure in the valve body can be guaranteed.

[0019] The utility model discloses setting up locking outer tooth on the valve cap, setting up linkage outer tooth on the adjusting screw, and setting up locking inner tooth and linkage inner tooth on the rotary hand wheel, so that it is prevented from being touched by mistake, and the valve cap is provided with axial limit ring groove, and the rotary hand wheel is provided with axial limit tooth, the axial limit ring groove and axial limit tooth mutually cooperate, when being touched by mistake, the locking inner tooth on the rotary hand wheel and the locking outer tooth on the valve cap are engaged, the axial limit tooth is located below the axial limit ring groove, and the rotary hand wheel can not rotate, when needing to rotate, the axial limit tooth is located in the axial limit ring groove by lifting the rotary hand wheel, and the locking inner tooth on the rotary hand wheel is separated from the locking outer tooth on the valve cap, and the rotary hand wheel can rotate the adjusting screw, and the pressure of pressure regulating valve is adjusted, and it is worth mentioning that the linkage outer tooth on the adjusting screw is always engaged with the linkage inner tooth on the rotary hand wheel. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is the structure schematic view of the utility model.

[0021] Figure 2 It is the structure schematic view of the utility model.

[0022] Figure 3 It is the sectional view of the utility model.

[0023] Figure 4 It is Figure 3 The enlarged view of A of

[0024] Figure 5 It is the structure schematic view of the utility model.

[0025] Figure 6 It is the structure schematic view of the utility model.

[0026] Figure 7 It is the sectional view of the utility model.

[0027] The meaning of the reference numeral in the drawing:

[0028] 1. Valve body; 11. Arc-shaped notch; 12. Fourth outlet; 13. Fifth outlet; 14. Plug; 15. Pressure gauge mounting hole; 16. Switch; 2. Inlet; 3. First outlet; 5. Liquid passage; 6. Adjustable pressure regulating valve; 61. Valve core; 611. Filter screen; 62. Valve stem; 63. Valve cap; 64. Sealing elastic diaphragm; 65. Spring; 66. Adjusting nut; 67. Adjusting screw; 68. Rotary handwheel; 69. Gasket; 631. Locking external tooth; 632. Locking internal tooth; 633. Axial limiting ring groove; 634. Axial limiting tooth; 671. Linkage external tooth; 672. Linkage internal tooth; 7. Check valve; 8. Safety valve; 81. Snap-fit ​​ring groove; 82. U-shaped clamp; 83. Third outlet; 9. Second outlet. Detailed Implementation

[0029] The present invention will be further described below with reference to specific embodiments:

[0030] like Figures 1-7 As shown: A multifunctional adjustable pressure reducing valve includes a valve body 1, on which an inlet 2 and a first outlet 3 are provided. A liquid channel 5 connecting the inlet 2 and the first outlet 3 is provided within the valve body 1. An adjustable pressure regulating valve 6 is provided on the valve body 1, located above the first outlet 3, for reducing the inlet pressure of the inlet 2. A one-way valve 7 is provided between the inlet 2 and the adjustable pressure regulating valve 6, located within the liquid channel 5. A second outlet is provided on the valve body 1. The second outlet 9 is connected to the liquid channel 5, and a safety valve 8 is detachably installed on the second outlet 9. The valve body of this utility model is provided with an inlet, a first outlet, and a second outlet. After the liquid enters from the inlet, it passes through a one-way valve, then the water pressure is regulated by a pressure regulating valve, and finally it is discharged from the first outlet. A safety valve is installed on the second outlet. The safety valve is designed so that when the water pressure in the valve body is too high, the liquid can be discharged from the third outlet on the safety valve, thus ensuring the pressure in the valve body.

[0031] In the multifunctional adjustable pressure reducing valve, the adjustable pressure stabilizing valve 6 comprises a valve core 61, a valve rod 62, a valve cap 63, a sealing elastic diaphragm 64, a spring 65, an adjusting nut 66, an adjusting screw rod 67 and a rotating hand wheel 68, the valve core 61 is located in the valve body 1, the valve core 61 has a through hole communicating with the liquid channel 5 on the side wall, the valve cap 63 is connected with the valve body 1 and fixes the sealing elastic diaphragm 64 on the valve core 61, the valve rod 62 is arranged in the valve core 61 and is connected with the adjusting nut 66 through the spring 65, the adjusting screw rod 67 is adjustably connected with the adjusting nut 66, and the upper end of the adjusting screw rod 67 is connected with the rotating hand wheel 68 through the valve cap 63, the rotating hand wheel 68 can control the water outlet gap between the lower end of the valve rod 62 and the valve core 61, and the water pressure in the valve body can be adjusted.

[0032] The valve core 61 is sleeved with a filter screen 611, and the water flows into the lower end of the valve rod 62 in sequence through the water inlet 2, the one-way valve 7, the filter screen 611 and the through hole of the valve core 61, and the filter screen 611 can block some large impurities to prevent the impurities from damaging the downstream household appliances.

[0033] In the multifunctional adjustable pressure reducing valve, the sealing elastic diaphragm 64 and the spring 65 are separated by a gasket 69, and the gasket 69 is connected with the valve rod 62, and the gasket is a metal gasket.

[0034] In the multifunctional adjustable pressure reducing valve, the valve cap 63 is provided with locking external teeth 631, the rotating hand wheel 68 is provided with locking internal teeth 632 matched with the locking external teeth 631, the end of the adjusting screw rod 67 extending out of the valve cap 63 is provided with linkage external teeth 671, the rotating hand wheel 68 is provided with linkage internal teeth 672 matched with the linkage external teeth 671, the circumferential side of the valve cap 63 is provided with an axial limiting ring groove 633, and the rotating hand wheel 68 is provided with an axial limiting tooth 634 matched with the axial limiting ring groove 633, the locking external teeth are arranged on the valve cap, the linkage external teeth are arranged on the adjusting screw rod, the locking internal teeth and the linkage internal teeth are arranged on the rotating hand wheel, so that the rotating hand wheel cannot be rotated by mistake, the locking internal teeth on the rotating hand wheel are engaged with the locking external teeth on the valve cap, the axial limiting tooth is located below the axial limiting ring groove, the rotating hand wheel cannot be rotated, when the rotating hand wheel needs to be rotated, the axial limiting tooth is located in the axial limiting ring groove, the locking internal teeth on the rotating hand wheel are separated from the locking external teeth on the valve cap, the rotating hand wheel can rotate to adjust the screw rod and adjust the pressure of the pressure stabilizing valve, and the linkage external teeth on the adjusting screw rod are always engaged with the linkage internal teeth on the rotating hand wheel, and the linkage external teeth and the linkage internal teeth are in sliding engagement.

[0035] In the multifunctional adjustable pressure reducing valve, the safety valve 8 is provided with a clamping ring groove 81 on the peripheral side, the valve body 1 is provided with an arc-shaped notch 11, the arc-shaped notch 11 is arranged close to the second water outlet 9, and the safety valve 8 is fixed by inserting the U-shaped clamp 82 into the arc-shaped notch 11 and the clamping ring groove 81 after being inserted into the second water outlet 9, and one side of the safety valve 8 is provided with a third water outlet 83, and specifically, this is to facilitate disassembly and repair.

[0036] In the multifunctional adjustable pressure reducing valve, the valve body 1 is further provided with a fourth water outlet 12 and a fifth water outlet 13, the fourth water outlet 12 and / or the fifth water outlet 13 are provided with plugs 14, and specifically, two water-using electrical appliances, such as water heaters or washing machines or dishwashers, etc.

[0037] In the multifunctional adjustable pressure reducing valve, the valve body 1 is further provided with a pressure gauge mounting hole 15, and specifically, the pressure gauge can be installed to detect the pressure in the valve body.

[0038] In the multifunctional adjustable pressure reducing valve, the valve body 1 is further provided with a pressure gauge mounting hole 15, and specifically, the pressure gauge can be installed to detect the pressure in the valve body.

[0039] The above embodiment is only a preferred embodiment of the present application, and does not limit the protection scope of the present application, so that: any equivalent changes made according to the structure, shape and principle of the present application should be covered within the protection scope of the present application.

Claims

1. A multifunctional adjustable pressure reducing valve comprising a valve body (1), characterized in that: The valve body (1) is provided with a water inlet (2) and a first water outlet (3), the valve body (1) is provided with a liquid channel (5) which is communicated with the water inlet (2) and the first water outlet (3), and the valve body (1) is provided with an adjustable pressure stabilizing valve (6) which is located above the first water outlet (3) and is used for reducing the water inlet pressure of the water inlet (2), and a one-way valve (7) is arranged between the water inlet (2) and the adjustable pressure stabilizing valve (6), the one-way valve (7) is located in the liquid channel (5), the valve body (1) is provided with a second water outlet (9), the second water outlet (9) is communicated with the liquid channel (5), and the second water outlet (9) is detachably provided with a safety valve (8).

2. The multi-functional pressure reducing valve according to claim 1, wherein: The adjustable pressure stabilizing valve (6) comprises a valve core (61), a valve rod (62), a valve cap (63), a sealing elastic diaphragm (64), a spring (65), an adjusting nut (66), an adjusting screw rod (67) and a rotating hand wheel (68), the valve core (61) is located in the valve body (1), the valve cap (63) is connected with the valve body (1) and fixes the sealing elastic diaphragm (64) on the valve core (61), the valve rod (62) is arranged in the valve core (61) and is connected with the adjusting nut (66) through the spring (65), the adjusting screw rod (67) is adjustably connected with the adjusting nut (66), and the upper end of the adjusting screw rod (67) is connected with the rotating hand wheel (68) through the valve cap (63), and the rotating hand wheel (68) can control the water outlet gap between the valve rod (62) and the valve core (61).

3. The multi-functional pressure reducing valve according to claim 2, wherein: The sealing elastic diaphragm (64) and the spring (65) are separated by a gasket (69), and the gasket (69) is connected with the valve rod (62).

4. The multi-functional pressure reducing valve according to claim 2, wherein: The valve cap (63) is provided with locking external teeth (631), the rotating hand wheel (68) is provided with locking internal teeth (632) which are used in cooperation with the locking external teeth (631), one end of the adjusting screw rod (67) which extends out of the valve cap (63) is provided with linkage external teeth (671), the rotating hand wheel (68) is provided with linkage internal teeth (672) which are used in cooperation with the linkage external teeth (671), and the circumferential side of the valve cap (63) is provided with an axial limiting ring groove (633), and the rotating hand wheel (68) is provided with an axial limiting tooth (634) which is used in cooperation with the axial limiting ring groove (633).

5. The multi-functional pressure reducing valve according to claim 2, wherein: The valve core (61) is provided with a filter screen (611) outside.

6. The multi-functional pressure reducing valve according to claim 1, wherein: The safety valve (8) is provided with a clamping ring groove (81) on the circumferential side, the valve body (1) is provided with an arc-shaped notch (11), the arc-shaped notch (11) is arranged close to the second water outlet (9), after the safety valve (8) is inserted into the second water outlet (9), the safety valve (8) is fixed by the cooperation of the U-shaped clamp (82) inserted into the arc-shaped notch (11) and the clamping ring groove (81), and one side of the safety valve (8) is provided with a third water outlet (83).

7. The multi-functional pressure reducing valve according to claim 1 or 2 or 3 or 4 or 5 or 6, wherein: The valve body (1) is further provided with a fourth water outlet (12) and a fifth water outlet (13), and the fourth water outlet (12) and / or the fifth water outlet (13) is provided with a plug (14).

8. The multi-functional pressure reducing valve according to claim 7, wherein: A pressure gauge mounting hole (15) is further arranged on the valve body (1).

9. The multi-functional pressure reducing valve according to claim 7, wherein: A switch (16) is arranged on one end of the valve body (1) close to the water inlet (2).

10. The multi-functional pressure reducing valve according to claim 9, wherein: The switch (16) is a ball valve or a gate valve.

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