CN219911820U - Valve structure for decompression - Google Patents

Abstract

The utility model discloses a decompression valve structure, which aims to provide a decompression valve structure capable of closing a decompression valve, and comprises a body, a decompression assembly and a handle assembly, wherein the decompression assembly is arranged in the body, the decompression assembly is connected with the body, a gland is arranged on the body, the gland is arranged on the upper end face of the body and is in threaded connection with the body, a nut is arranged on the handle assembly, the nut is arranged at the lower part of the handle assembly, the nut is arranged on the upper end face of the gland, the handle assembly is connected with the gland through the nut, and the lower end face of the handle assembly sequentially passes through the nut and the gland and then contacts with the upper end face of the decompression assembly. The beneficial effects of the utility model are as follows: the purpose of being able to close the pressure reducing valve; can filter impurities in water and prolong the service life; the rotation is convenient; the water pressure is reduced while the water inflow is conveniently regulated; a pressure gauge may be installed; the installation and adjustment of the pressure reducing valve have good prompting effect.

Description

Valve structure for decompression

Technical Field

The utility model relates to the technical field of valves, in particular to a valve structure for reducing pressure.

Background

The water pressure in the home is too high to produce electric water heater and have abnormal sound, the relief valve can drip and answer water leakage, and the water pressure is not matched with the water pressure required by the water purifier on the market, the water pipe in the home can be burst frequently when serious, immeasurable loss is brought to the home, the relief valve of tap water is very important, the problem can be well solved, but the relief valve is not needed sometimes, so the relief valve can be closed optimally.

The Chinese patent publication No. CN206918347U, the through valve disclosed in the publication date of the authority is 2017, 06 and 16, the through valve main body comprises a water inlet, a water flowing pipeline and a water outlet; the induction control assembly comprises a control cover, a first sealing element, an induction element and an elastic element, wherein the control cover is arranged in a straight-through valve body, the control cover is of a T-shaped structure, a groove is formed in the top end of the head of the T-shaped structure, the first sealing element is arranged in the groove and connected with a water pipeline, an annular groove is formed in the middle portion of the head of the T-shaped structure, the induction element is arranged in the annular groove, the elastic element is arranged on a protruding portion of the T-shaped structure, and a limiting element is arranged in the straight-through valve body and located between the control cover and the water outlet. The disadvantage of this utility model is that the relief valve cannot be closed.

Disclosure of Invention

The utility model provides a pressure reducing valve structure capable of closing a pressure reducing valve, which aims to overcome the defect that the pressure reducing valve cannot be closed in the prior art.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

the utility model provides a valve structure of decompression, includes body, decompression subassembly and handle subassembly, the decompression subassembly is arranged in this internally, decompression subassembly and body coupling, be equipped with the gland on the body, the gland is arranged in on the up end of body and with body threaded connection, be equipped with the nut on the handle subassembly, handle subassembly lower part is arranged in to the nut, the nut is arranged in on the up end of gland, the handle subassembly passes through the nut and is connected with the gland, the lower terminal surface of handle subassembly contacts with the up end of decompression subassembly after passing nut and gland in proper order.

When the novel household water inlet pipe is installed, the handle assembly is matched with the body through the gland and the handle assembly, and then the body is connected with a main pipeline for water inlet in a household; when the pressure reducing device is used, water in the water pipe enters the body, and the water pressure can be adjusted by adjusting the pressure reducing component; when the water pressure needs to be regulated in a large range, the pressure reducing component is rotated by using the hexagonal wrench, so that the pressure reducing component can regulate the water flow pressure; when the pressure reducing valve needs to be closed, the handle assembly is only required to be screwed, so that the pressure reducing assembly is pressed by the handle assembly to close the valve, and the purpose of closing the pressure reducing valve is achieved.

Preferably, the body is provided with a first groove, a second groove, a first boss, a first through hole, a bottom cover and a first cap, the first groove is arranged on the upper end face of the body, the second groove is arranged on the lower end face of the body, the first boss is arranged on the bottom face of the second groove, the first boss and the body are integrally formed, the first through hole is arranged on the first boss and is respectively communicated with the first groove and the second groove, the bottom cover is arranged on the lower end face of the body, the bottom cover is in threaded connection with the body, the bottom face of the bottom cover is provided with a second through hole, the first cap is arranged on the lower end face of the bottom cover, the first cap is in threaded connection with the bottom cover through the second through hole, the first through hole corresponds to the second through hole, the lower end of the pressure reducing component is arranged in the second through hole and is in threaded connection with the bottom cover, the handle component comprises a rotation adjusting rod, the upper end face of the rotation adjusting rod is arranged on the outer side of the body, the lower end of the rotation adjusting rod is arranged in the gland and is in threaded connection with the gland, and the upper end of the pressure reducing component passes through the first through the through hole and is respectively contacted with the lower end face of the rotation adjusting rod. The first through hole corresponds to the second through hole, the adjusting rod is convenient to rotate, the pressure reducing component is pressed down, and the pressure reducing valve is closed after the handle component moves downwards.

Preferably, the pressure reducing assembly comprises a pressure adjusting block, a first spring, a movable shaft, a top fixing block and a second spring, wherein the pressure adjusting block is arranged in the second through hole, the pressure adjusting block is in threaded connection with the bottom cover through the second through hole, the lower end face of the first spring is arranged in the second through hole and is in clamping connection with the pressure adjusting block, the upper end of the first spring is in threaded connection with the upper fixing block after penetrating through the second groove and the first through hole in the first boss, the upper fixing block is arranged in the first groove, the upper end face of the upper fixing block is convex, the lower end face of the second spring is in clamping connection with the top fixing block through the convex, the upper end face of the second spring is in contact with the gland, and the upper end face of the upper fixing block is in contact with the lower end face of the rotary adjusting rod. The first spring and the second spring are respectively arranged at the upper end of the movable shaft and above the upper fixed block, so that the movable range of the whole pressure reducing valve is larger, and the handle assembly is ready to be closed.

Preferably, the movable shaft is provided with a first piston and a second piston, the first piston is arranged on the lower end face of the movable shaft, the side face of the first piston is in contact with the inner side wall of the second groove, the second piston is arranged on the outer side face of the movable shaft and is positioned above the first piston, the second piston is arranged in the first through hole, the side face of the second piston is in contact with the inner wall of the first through hole, the first piston, the second piston and the movable shaft are integrally formed, the pressure reducing assembly further comprises a filter screen, the filter screen is arranged on the upper end face of the second piston, the filter screen is in contact with the upper end face of the second piston, a boss II is arranged on the lower end face of the first piston, the boss II and the first piston are integrally formed, and the upper end of the first spring is clamped with the lower end of the first piston through the boss II. The piston I has the effect of limiting in the groove II, so that the movable shaft cannot deviate, the piston II can well limit water flow, the filter screen can filter impurities in water, and the service life of the pressure reducing valve is prolonged.

Preferably, the handle assembly further comprises a handle and a screw, wherein the handle is arranged on the upper end face of the rotation adjusting rod, and the handle is in threaded connection with the rotation adjusting rod through the screw. The handle is arranged, so that the rotary adjusting rod can be conveniently rotated, and the use is convenient.

Preferably, the pressure regulating block is provided with a third boss and a regulating hole, the third boss is arranged on the upper end face of the pressure regulating block, the third boss and the pressure regulating block are integrally formed, the lower end face of the first spring is clamped with the pressure regulating block through the third boss, and the regulating hole is arranged on the lower end face of the pressure regulating block. The boss III is a limiting spring I, the spring I cannot deviate, and the adjusting hole can be adjusted according to the pressure adjusting block.

Preferably, the water outlet pipe, the water inlet pipe, the groove III, the groove IV and the through hole III are arranged on the body, the water inlet pipe is arranged on the left side surface of the body, the water outlet pipe is arranged on the right side surface of the body, the water outlet pipe, the water inlet pipe and the body are integrally formed, the groove III is arranged on the left side surface of the water inlet pipe, the through hole III is arranged on the right side surface of the groove III, the through hole III is communicated with the through hole I, the groove IV is arranged on the right end surface of the water outlet pipe, and the left end surface of the groove IV is respectively communicated with the groove I and the groove II. The third through hole is connected with the first through hole and the third groove, so that water pressure is reduced while water inflow is conveniently adjusted.

Preferably, the body is provided with a pressure gauge mounting tube and a second cover cap, the pressure gauge mounting tube is arranged on the lower end face of the water outlet tube, the pressure gauge mounting tube and the body are integrally formed, the lower end face of the pressure gauge mounting tube is provided with a groove five, the groove five is provided with a through hole four, the through hole four is respectively communicated with the water outlet tube and the groove four, and the second cover cap is in threaded connection with the pressure gauge mounting tube through the groove five. The pressure gauge can be installed by the pressure gauge installation tube, the water outlet pressure can be clear at a glance, and the second cover cap is a sealing element used when the pressure gauge is not used.

Preferably, the body is provided with a water flow direction indicator, the bottom cover is provided with an adjusting direction indicator, the water flow direction indicator is arranged on the front side and the rear side of the body, the water flow direction indicator and the body are integrally formed, the adjusting direction indicator is arranged on the lower end face of the bottom cover, and the adjusting direction indicator and the bottom cover are integrally formed. The adjusting direction indicator and the water flow direction indicator have good prompting effect on the installation and adjustment of the pressure reducing valve.

The beneficial effects of the utility model are as follows: the purpose of the pressure reducing valve can be closed; the first through hole corresponds to the second through hole, so that the adjusting rod is conveniently rotated to press the pressure reducing component downwards, and the pressure reducing valve is closed after the handle component moves downwards; the first spring and the second spring are respectively arranged at the upper end of the movable shaft and above the upper fixed block, so that the movable range of the whole pressure reducing valve is larger, and the handle assembly is ready to be closed; the piston I has the limiting function in the groove II so that the movable shaft cannot deviate, the piston II can well limit water flow, the filter screen can filter impurities in water, and the service life of the pressure reducing valve is prolonged; the handle is arranged, so that the rotary adjusting rod can be conveniently rotated and used; the boss III is a first limiting spring, the first spring cannot deviate, and the adjusting hole can be adjusted according to the pressure adjusting block; the through hole III is connected with the through hole I and the groove III, so that water inflow is conveniently adjusted, and meanwhile, water pressure is reduced; the pressure gauge mounting tube can be used for mounting the pressure gauge, the water outlet pressure energy is clear at a glance, and the second cover cap is a sealing element used when the pressure gauge is not used; the adjusting direction indicator and the water flow direction indicator have good prompting effect on the installation and adjustment of the pressure reducing valve.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a cross-sectional view of a front view of the present utility model;

FIG. 3 is a bottom view of the present utility model;

fig. 4 is an enlarged view of detail a of fig. 2;

fig. 5 is an enlarged view of detail B of fig. 2;

fig. 6 is an enlarged view of detail C of fig. 2;

fig. 7 is an enlarged view of detail D of fig. 2;

FIG. 8 is a cross-sectional view of the present utility model in a closed position;

fig. 9 is an enlarged view of detail E of fig. 8.

In the figure: 1. the pressure reducing valve comprises a body, 2, a pressure reducing assembly, 3, a handle assembly, 4, a gland, 5, a nut, 6, a first groove, 7, a second groove, 8, a first through hole, 9, a bottom cover, 10, a cap, 11, a first boss, 12, a second through hole, 13, a pressure adjusting block, 14, a spring, 15, a movable shaft, 16, a filter screen, 17, an upper fixing block, 18, a second spring, 19, a piston, 20, 21, a rotary adjusting rod, 22, a second boss, 23, a handle, 24, a screw, 25, a third boss, 26, an adjusting hole, 27, a water inlet pipe, 28, a water outlet pipe, 29, a third groove, 30, a fourth groove, 31, a third through hole, 32, a pressure gauge mounting pipe, 33, a second cap, 34, a fifth groove, 35, a fourth through hole, 36, a water flow direction indicator and 37.

Detailed Description

The utility model is further described below with reference to the drawings and detailed description.

In the embodiments shown in fig. 1, 2 and 7, a pressure reducing valve structure comprises a body 1, a pressure reducing component 2 and a handle component 3, wherein the pressure reducing component 2 is arranged in the body 1, the pressure reducing component 2 is connected with the body 1, a gland 4 is arranged on the body 1, the gland 4 is arranged on the upper end face of the body 1 and is in threaded connection with the body 1, a nut 5 is arranged on the handle component 3, the nut 5 is arranged on the lower part of the handle component 3, the nut 5 is arranged on the upper end face of the gland 4, the handle component 3 is connected with the gland 4 through the nut 5, and the lower end face of the handle component 3 sequentially passes through the nut 5 and the gland 4 and then is contacted with the upper end face of the pressure reducing component 2.

As shown in fig. 2, fig. 3, fig. 4, fig. 7, fig. 8 and fig. 9, the body 1 is provided with a groove one 6, a groove two 7, a boss one 11, a through hole one 8, a bottom cover 9 and a cap one 10, the groove one 6 is arranged on the upper end face of the body 1, the groove two 7 is arranged on the lower end face of the body 1, the boss one 11 is arranged on the bottom face of the groove two 7, the boss one 11 and the body 1 are integrally formed, the through hole one 8 is arranged on the boss one 11 and is respectively communicated with the groove one 6 and the groove two 7, the bottom cover 9 is arranged on the lower end face of the body 1, the bottom cover 9 is in threaded connection with the body 1, the bottom face of the bottom cover 9 is provided with a through hole two 12, the cap one 10 is arranged on the lower end face of the bottom cover 9 and is in threaded connection with the bottom cover 9 through the through hole two 12, the through hole one 8 corresponds to the through hole two 12, the lower end of the pressure reducing component 2 is arranged in the through hole two 12 and is in threaded connection with the bottom cover 9 through the through hole two 12, the handle component 3 comprises a rotation adjusting rod 21, the upper end face of the rotation adjusting rod 21 is arranged on the outer side of the body 1, the lower end of the rotation adjusting rod 21 is arranged in the gland 4 is in the 4 and is in threaded connection with the 4, and is in threaded connection with the upper end of the 4 is respectively.

As shown in fig. 2, fig. 4, fig. 7, fig. 8 and fig. 9, the pressure reducing assembly 2 comprises a pressure adjusting block 13, a first spring 14, a movable shaft 15, an upper fixing block 17 and a second spring 18, wherein the pressure adjusting block 13 is arranged in the through hole two 12, the pressure adjusting block 13 is in threaded connection with the bottom cover 9 through the through hole two 12, the lower end face of the first spring 14 is arranged in the through hole two 12 and is clamped with the pressure adjusting block 13, the upper end of the first spring 14 is clamped with the lower end of the movable shaft 15, the upper end of the movable shaft 15 passes through the first through hole 8 on the second groove 7 and the first boss 11 and is in threaded connection with the upper fixing block 17, the upper fixing block 17 is arranged in the first groove 6, the upper end face of the upper fixing block 17 is convex, the lower end face of the second spring 18 is clamped with the upper fixing block 17 through the convex, the upper end face of the second spring 18 is contacted with the gland 4, and the upper end face of the upper fixing block 17 is contacted with the lower end face of the rotation adjusting rod 21.

As shown in fig. 2 and 6, the movable shaft 15 is provided with a first piston 19 and a second piston 20, the first piston 19 is arranged on the lower end face of the movable shaft 15, the side face of the first piston 19 is in contact with the inner side wall of the second groove 7, the second piston 20 is arranged on the outer side face of the movable shaft 15 and above the first piston 19, the second piston 20 is arranged in the first through hole 8, the side face of the second piston 20 is in contact with the inner wall of the first through hole 8, the first piston 19, the second piston 20 and the movable shaft 15 are all integrally formed, the pressure reducing assembly 2 further comprises a filter screen 16, the filter screen 16 is arranged on the upper end face of the second piston 20, the filter screen 16 is in contact with the upper end face of the second piston 20, a boss second 22 is arranged on the first piston 19, the boss second 22 is integrally formed with the first piston 19, and the upper end of the first spring 14 is clamped with the lower end of the first piston 19 through the boss second boss 22.

As shown in fig. 1, 2 and 7, the handle assembly 3 further includes a handle 23 and a screw 24, the handle 23 is disposed on an upper end surface of the rotation adjustment lever 21, and the handle 23 is screw-coupled with the rotation adjustment lever 21 through the screw 24.

As shown in fig. 2 and 4, the pressure regulating block 13 is provided with a third boss 25 and a regulating hole 26, the third boss 25 is arranged on the upper end surface of the pressure regulating block 13, the third boss 25 and the pressure regulating block 13 are integrally formed, the lower end surface of the first spring 14 is clamped with the pressure regulating block 13 through the third boss 25, and the regulating hole 26 is arranged on the lower end surface of the pressure regulating block 13.

As shown in fig. 1, 2 and 3, the body 1 is provided with a water outlet pipe 28, a water inlet pipe 27, a groove III 29, a groove IV 30 and a through hole III 31, the water inlet pipe 27 is arranged on the left side surface of the body 1, the water outlet pipe 28 is arranged on the right side surface of the body 1, the water outlet pipe 28, the water inlet pipe 27 and the body 1 are integrally formed, the groove III 29 is arranged on the left side surface of the water inlet pipe 27, the through hole III 31 is arranged on the right side surface of the groove III 29, the through hole III 31 is communicated with the through hole I8, the groove IV 30 is arranged on the right end surface of the water outlet pipe 28, and the left end surface of the groove IV 30 is respectively communicated with the groove I6 and the groove II 7.

As shown in fig. 1, 2 and 5, a pressure gauge mounting tube 32 and a second cap 33 are arranged on the body 1, the pressure gauge mounting tube 32 is arranged on the lower end face of the water outlet tube 28, the pressure gauge mounting tube 32 and the body 1 are integrally formed, a groove five 34 is arranged on the lower end face of the pressure gauge mounting tube 32, a through hole four 35 is arranged on the groove five 34, the through hole four 35 is respectively communicated with the water outlet tube 28 and the groove four 30, and the second cap 33 is in threaded connection with the pressure gauge mounting tube 32 through the groove five 34.

As shown in fig. 1 and 3, a water flow direction indicator 36 is arranged on the body 1, an adjusting direction indicator 37 is arranged on the bottom cover 9, the water flow direction indicator 36 is arranged on the front side surface and the rear side surface of the body 1, the water flow direction indicator 37 and the body 1 are integrally formed, the adjusting direction indicator 37 is arranged on the lower end surface of the bottom cover 9, and the adjusting direction indicator 37 and the bottom cover 9 are integrally formed.

When the novel water-saving type water tap is installed, the movable adjusting rod 21 of the handle assembly 3 passes through the gland 4 to be connected with the handle 23 through the screw 24, the gland 4 is matched with the nut 5 to enable the movable adjusting rod 21 to be connected with the body 1, then the water outlet pipe 28 of the water inlet pipe 27 on the body 1 is connected with a main pipeline for water inflow in a home, if a pressure gauge is needed, the second cover cap 33 can be detached from the pressure gauge installation pipe 32, the pressure gauge is installed, and corresponding sealing rings, sealing gaskets and the like are arranged at all the connecting positions to prevent water leakage caused by overhigh internal pressure; when the novel household water pressure regulator is used, water of a water pipe enters the first through hole 8 through the third groove 29 and the third through hole 31 of the water inlet pipe 27, water flow is reduced when the water passes through the third through hole 31, water pressure is reduced, then the water is filtered through the filter screen 16 and is depressurized again by the pressure reducing assembly 2, clean water can enter the first groove 6 again, finally flows into a household through the fourth groove 30 of the water outlet pipe 28, the pressure reducing valve can be closed by rotating the handle assembly 3, and the water pressure can be regulated by rotating the pressure reducing assembly 2; when the water pressure needs to be regulated in a large range, the first cap 10 is opened, the first cap is inserted into the regulating hole 26 by using a hexagonal wrench to rotate the pressure regulating block 13, when the pressure regulating block 13 is upwards, the first spring 14 presses the first piston 19 upwards, the movable shaft 15 is upwards, the second piston 20 pressurizes the first groove 6, and when the pressure regulating block 13 is downwards, the effect is opposite; when the pressure reducing valve needs to be closed, the handle 23 is only required to be screwed, the lower end of the rotary adjusting rod 21 is enabled to press the upper fixing block 13, the upper fixing block 13 is enabled to press the movable shaft 15 until the upper fixing block 13 is enabled to press against the bottom surface of the groove I6, and the communicating part of the groove I6 and the groove IV 30 is closed, so that water flow can be prevented from passing, and the purpose of closing the pressure reducing valve is achieved.

Claims (9)

1. The utility model provides a valve structure of decompression, its characterized in that, including body (1), decompression subassembly (2) and handle subassembly (3), decompression subassembly (2) are arranged in body (1), decompression subassembly (2) are connected with body (1), be equipped with gland (4) on body (1), gland (4) are arranged in on the up end of body (1) and with body (1) threaded connection, be equipped with nut (5) on handle subassembly (3), handle subassembly (3) lower part is arranged in to nut (5), nut (5) are arranged in on the up end of gland (4), handle subassembly (3) are connected with gland (4) through nut (5), the lower terminal surface of handle subassembly (3) is contacted with the up end of decompression subassembly (2) after passing nut (5) and gland (4) in proper order.

2. The valve structure according to claim 1, wherein the body (1) is provided with a first groove (6), a second groove (7), a first boss (11), a first through hole (8), a bottom cover (9) and a first cover cap (10), the first groove (6) is arranged on the upper end face of the body (1), the second groove (7) is arranged on the lower end face of the body (1), the first boss (11) is arranged on the bottom face of the second groove (7), the first boss (11) and the body (1) are integrally formed, the first through hole (8) is arranged on the first boss (11) and is respectively communicated with the first groove (6) and the second groove (7), the bottom cover (9) is arranged on the lower end face of the body (1), the bottom cover cap (9) is in threaded connection with the body (1), the bottom face of the bottom cover cap (9) is provided with a second through hole (12), the first cover cap (10) is arranged on the lower end face of the bottom cover cap (9), the first cover cap (10) is connected with the bottom cover cap (9) through the second through hole (12) through the first through hole (12) and is in threaded connection with the second through hole (12) and is arranged in the bottom cap (12) through the second through hole (12), the handle assembly (3) comprises a rotary adjusting rod (21), the upper end face of the rotary adjusting rod (21) is arranged on the outer side of the body (1), the lower end of the rotary adjusting rod (21) is arranged in the gland (4) and is in threaded connection with the gland (4), and the upper end of the pressure reducing assembly (2) penetrates through the first through hole (8) to be respectively contacted with the lower end faces of the gland (4) and the rotary adjusting rod (21).

3. The decompression valve structure according to claim 2, wherein the decompression assembly (2) comprises a pressure adjusting block (13), a first spring (14), a movable shaft (15), a first upper fixing block (17) and a second spring (18), wherein the pressure adjusting block (13) is arranged in the second through hole (12), the pressure adjusting block (13) is in threaded connection with the bottom cover (9) through the second through hole (12), the lower end face of the first spring (14) is arranged in the second through hole (12) and is clamped with the pressure adjusting block (13), the upper end of the first spring (14) is clamped with the lower end of the movable shaft (15), the upper end of the movable shaft (15) is in threaded connection with the upper fixing block (17) after passing through the second groove (7) and the first through hole (8) in the first boss (11), the upper fixing block (17) is arranged in the first groove (6), the upper end face of the upper fixing block (17) is convex, the lower end face of the second spring (18) is clamped with the upper fixing block (17) through the convex, and the lower end face of the second spring (18) is in contact with the upper end face of the upper fixing block (21) and is in contact with the upper end face of the upper pressing cover (21).

4. A decompression valve structure according to claim 3, wherein the movable shaft (15) is provided with a first piston (19) and a second piston (20), the first piston (19) is arranged on the lower end face of the movable shaft (15), the side face of the first piston (19) is in contact with the inner side wall of the second groove (7), the second piston (20) is arranged on the outer side face of the movable shaft (15) and above the first piston (19), the second piston (20) is arranged in the first through hole (8), the side face of the second piston (20) is in contact with the inner wall of the first through hole (8), the first piston (19), the second piston (20) and the movable shaft (15) are all integrally formed, the decompression assembly (2) further comprises a filter screen (16), the filter screen (16) is arranged on the upper end face of the second piston (20), the filter screen (16) is in contact with the upper end face of the second piston (20), a boss (22) is arranged on the first piston (19), the side face of the second piston (20) is in contact with the inner wall of the first through hole (8), and the first end face of the second piston (19) is integrally formed with the first boss (22) and is integrally connected with the second end (14) of the first piston (19).

5. A pressure reducing valve structure according to claim 2, wherein the handle assembly (3) further comprises a handle (23) and a screw (24), the handle (23) is disposed on an upper end surface of the rotation adjusting rod (21), and the handle (23) is screwed with the rotation adjusting rod (21) through the screw (24).

6. A decompression valve structure according to claim 3, wherein the pressure regulating block (13) is provided with a boss III (25) and a regulating hole (26), the boss III (25) is arranged on the upper end surface of the pressure regulating block (13), the boss III (25) and the pressure regulating block (13) are integrally formed, the lower end surface of the spring I (14) is clamped with the pressure regulating block (13) through the boss III (25), and the regulating hole (26) is arranged on the lower end surface of the pressure regulating block (13).

7. The decompression valve structure according to claim 2, wherein the body (1) is provided with a water outlet pipe (28), a water inlet pipe (27), a groove III (29), a groove IV (30) and a through hole III (31), the water inlet pipe (27) is arranged on the left side surface of the body (1), the water outlet pipe (28) is arranged on the right side surface of the body (1), the water outlet pipe (28), the water inlet pipe (27) and the body (1) are integrally formed, the groove III (29) is arranged on the left side surface of the water inlet pipe (27), the through hole III (31) is arranged on the right side surface of the groove III (29), the through hole III (31) is communicated with the through hole I (8), the groove IV (30) is arranged on the right side surface of the water outlet pipe (28), and the left side surface of the groove IV (30) is respectively communicated with the groove I (6) and the groove II (7).

8. The decompression valve structure according to claim 7, wherein the body (1) is provided with a pressure gauge mounting tube (32) and a second cap (33), the pressure gauge mounting tube (32) is arranged on the lower end face of the water outlet tube (28), the pressure gauge mounting tube (32) and the body (1) are integrally formed, the lower end face of the pressure gauge mounting tube (32) is provided with a fifth groove (34), the fifth groove (34) is provided with a fourth through hole (35), the fourth through hole (35) is respectively communicated with the water outlet tube (28) and the fourth groove (30), and the second cap (33) is in threaded connection with the pressure gauge mounting tube (32) through the fifth groove (34).

9. The decompression valve structure according to claim 2, wherein the body (1) is provided with a water flow direction indicator (36), the bottom cover (9) is provided with an adjusting direction indicator (37), the water flow direction indicator (36) is arranged on the front side and the rear side of the body (1), the water flow direction indicator (36) and the body (1) are integrally formed, the adjusting direction indicator (37) is arranged on the lower end face of the bottom cover (9), and the adjusting direction indicator (37) and the bottom cover (9) are integrally formed.