Rotary decompression plug

Abstract

The utility model discloses a rotary decompression bolt which comprises a bolt body, the top of the bolt body is fixedly connected with a bolt cover, the outer wall of the bolt body is fixedly communicated with a water outlet pipe, the outer wall of the water outlet pipe is sleeved with a connector in a threaded mode, the interior of the water outlet pipe is fixedly connected with two connecting rods, one ends of the two connecting rods are fixedly connected with the same circular sleeve, and the other ends of the two connecting rods are fixedly connected with the same circular sleeve. A sliding rod is slidably connected to the inner wall of the round sleeve, and a long hole is formed in the outer wall of the sliding rod. By arranging the connecting rod, the circular sleeve, the sliding rod, the adjusting rod, the circular ring, the annular protruding block, the circular block, the brush and the spring, the circular block and the spring are matched to play a role in reducing water pressure, meanwhile, the elastic force and the stretching distance of the spring can be changed, the pressure reducing effect on the water pressure is adjusted, the water outlet end of a water hose can be conveniently held by hand, and shaking is avoided; when the water outlet pipe is not used in daily life, the round block and the brushes shield the interior of the water outlet pipe, and impurities are prevented from entering the water outlet pipe.

Description

TECHNICAL FIELD

[0001] The utility model relates to fire fighting equipment technical field especially relates to a rotary pressure reducing plug. BACKGROUND

[0002] The indoor rotary pressure reducing plug is a special fire hydrant, which adds a rotating and pressure reducing and stabilizing device on the basis of the ordinary indoor fire hydrant. This device can keep the outlet pressure and flow stable through the pressure reducing and stabilizing device regardless of the change of the pressure in front of the plug, so as to achieve the purpose of pressure reduction and stabilization. At the same time, the plug body can rotate horizontally around the center of the base by 360 degrees, providing greater operational flexibility and convenience.

[0003] Through the search, the patent document with publication number CN217724426U discloses a rotary pressure reducing plug, which is provided with a cleaning structure. When water passes through the inside of the plug body, the pressure of the water flow will push the blade to turn inside the shaft, thereby driving the brush to continuously turn. The blade can continuously transport the impurities accumulated in the inside of the plug body, thereby dredging the inside and preventing blockage, ensuring the normal use of the pressure reducing plug. In actual use, the above-mentioned impurities are transported out by the impact of the water flow, but the impurities will still enter the hose and affect the water outlet effect, and the water pressure cannot be further adjusted, which is easy to cause the hose to shake when water is discharged and the hand to be unstable. UTILITY MODEL CONTENTS

[0004] The utility model aims at solving the shortcomings in the prior art and provides a rotary pressure reducing plug.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0006] A rotary pressure reducing plug, comprising a plug body, a plug cover is fixedly connected to the top of the plug body, an outlet pipe is fixedly connected to the outer wall of the plug body, a joint is threadedly sleeved on the outer wall of the outlet pipe, two connecting rods are fixedly connected to the inside of the outlet pipe, one end of the two connecting rods is fixedly connected to the same circular sleeve, a sliding rod is slidably connected to the inner wall of the circular sleeve, a long hole is formed in the outer wall of the sliding rod, an adjusting rod is threadedly connected to the inner wall of the long hole, one end of the adjusting rod is fixedly connected to a circular block, and a pressure regulating mechanism is arranged in the inside of the outlet pipe.

[0007] Preferably, the pressure regulating mechanism comprises an annular protrusion, an annular groove is formed in the outer wall of the circular block, the inner wall of the annular groove is rotatably connected with the outer wall of the annular protrusion, a circular ring is sleeved on the outer wall of the sliding rod, the outer wall of the annular protrusion is fixedly connected with the outer wall of the circular ring, a spring is sleeved on the outer wall of the sliding rod, and a plurality of brushes are uniformly fixedly connected to the outer wall of the circular block. By setting the pressure regulating mechanism, the pressure of the water outlet is changed, so as to facilitate the hand to hold the water outlet end of the hose and avoid shaking.

[0008] Preferably, the outer wall of the plug cover is provided with a through hole, the inner wall of the through hole is threadedly connected with a threaded rod, the top of the threaded rod is fixedly connected with a hand wheel, and the bottom of the threaded rod is fixedly connected with a piston.

[0009] Preferably, the inner wall of the plug body is fixedly connected with an annular block, the outer wall of the annular block is rotatably connected with a plug base, the inner wall of the plug base is provided with an internal thread, and the plug base is fixed at the top of an existing fire-fighting pipeline.

[0010] Preferably, one end of the spring is fixedly connected with the outer wall of the round sleeve, and the other end of the spring is fixedly connected with the outer wall of the annular ring.

[0011] Preferably, the outer wall of the brush is slidably connected with the inner wall of the water outlet pipe.

[0012] Compared with the prior art, the rotary pressure-reducing plug has the following advantages:

[0013] The connecting rod, the round sleeve, the sliding rod, the adjusting rod, the annular ring, the annular block, the circular block, the brush and the spring are arranged, the circular block and the spring are matched to reduce water pressure, the elasticity and the stretching distance of the spring can be changed, the pressure-reducing effect on water pressure is adjusted, the water outlet end of the water belt is convenient to hold, and shaking is avoided; and the circular block and the plurality of brushes shield the inside of the water outlet pipe when not used, so that sundries are prevented from entering. BRIEF DESCRIPTION OF DRAWINGS

[0014] In order to more clearly illustrate the technical scheme of the present application, the following will briefly introduce the drawings needed in the specific implementation manner. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without any creative effort.

[0015] Figure 1 A perspective structural schematic view of the rotary pressure-reducing plug is provided for the present application.

[0016] Figure 2 A sectional structural schematic view of the rotary pressure-reducing plug is provided for the present application.

[0017] Figure 3 A partial perspective structural schematic view of the rotary pressure-reducing plug is provided for the present application. Figure 2 An enlarged structural schematic view of part A in the rotary pressure-reducing plug is provided for the present application.

[0018] Figure 4 A partial perspective structural schematic view of the rotary pressure-reducing plug is provided for the present application.

[0019] In the diagram: 1. Bolt body; 2. Bolt cap; 3. Threaded rod; 4. Handwheel; 5. Piston; 6. Annular block; 7. Bolt seat; 8. Outlet pipe; 9. Connector; 10. Connecting rod; 11. Circular sleeve; 12. Slide rod; 13. Adjusting rod; 14. Circular ring; 15. Circular protrusion; 16. Circular block; 17. Brush; 18. Spring. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0021] Depend on Figures 1-4 As shown, a rotary pressure relief valve is disclosed, comprising a valve body 1, a valve cap 2 fixedly connected to the top of the valve body 1, a through hole formed on the outer wall of the valve cap 2, a threaded rod 3 threadedly connected to the inner wall of the through hole, a handwheel 4 fixedly connected to the top of the threaded rod 3, the handwheel 4 driving the threaded rod 3 to rotate, thereby causing the piston 5 to rise and fall, the piston 5 fixedly connected to the bottom of the threaded rod 3, an annular block 6 fixedly connected to the inner wall of the valve body 1, a valve seat 7 rotatably connected to the outer wall of the annular block 6, the valve seat 7 rotating and being limited by the annular block 6, and a water outlet pipe 8 fixedly connected to the outer wall of the valve body 1, with a connector 9 threadedly fitted on the outer wall of the water outlet pipe 8.

[0022] The water outlet pipe 8 has two connecting rods 10 fixedly connected inside. One end of each connecting rod 10 is fixedly connected to the same circular sleeve 11. The inner wall of the circular sleeve 11 is slidably connected to a sliding rod 12. The sliding rod 12 slides through the circular sleeve 11. The outer wall of the sliding rod 12 has an elongated hole. The inner wall of the elongated hole is threaded with an adjusting rod 13. The adjusting rod 13 rotates through the elongated hole. One end of the adjusting rod 13 is fixedly connected to a circular block 16. The circular block 16 drives the adjusting rod 13 to rotate.

[0023] The water outlet pipe 8 is equipped with a pressure regulating mechanism, which includes an annular protrusion 15 and an annular groove on the outer wall of a circular block 16. The inner wall of the annular groove is rotatably connected to the outer wall of the annular protrusion 15. The circular block 16 rotates and is limited by the annular protrusion 15 and the annular groove. A circular ring 14 is sleeved on the outer wall of the slide rod 12. The outer wall of the annular protrusion 15 is fixedly connected to the outer wall of the circular ring 14.

[0024] The outer wall of the slide rod 12 is sleeved with a spring 18, and the outer wall of the circular block 16 is uniformly and fixedly connected with a plurality of brushes 17, the brushes 17 play a role of blocking sundries from entering the water outlet pipe 8, and part of the water outlet space is left, the outer wall of the brush 17 is in sliding connection with the inner wall of the water outlet pipe 8, one end of the spring 18 is fixedly connected with the outer wall of the circular sleeve 11, and the other end of the spring 18 is fixedly connected with the outer wall of the circular ring 14.

[0025] Working principle: when the plug body 1 is used, the plug body 1 is fixed on the existing fire pipe through the plug base 7, the hand wheel 4 is rotated to drive the threaded rod 3 to move the piston 5 upwards, the piston 5 no longer blocks the water outlet end in the plug body 1, the high-pressure water of the fire pipe is flushed out and discharged along the water outlet pipe 8, and when the water is discharged, the circular block 16 is pressed, so that the circular block 16 is slid outward in the circular sleeve 11 through the adjusting rod 13 and the slide rod 12, at this time, the spring 18 is stretched, the generated stretching elastic force reduces the water pressure, avoids the water from flushing out too fast, and simultaneously the circular block 16 can be rotated in advance to make the adjusting rod 13 rotate outward, the spring 18 is stretched through the annular protruding block 15 and the circular ring 14 moving outward, the elastic force and the stretching distance of the spring 18 are changed, and the pressure reduction effect on the water pressure is adjusted; when not used daily, the circular block 16 and the plurality of brushes 17 shield the inside of the water outlet pipe 8, so that sundries are prevented from entering the water outlet pipe 8.

[0026] The preferred embodiments disclosed above are only used for helping to describe the utility model. The preferred embodiments do not describe all the details and limit the utility model to the specific implementation. Apparently, according to the content of the specification, many modifications and changes can be made. The specification selects and specifically describes these embodiments, in order to better explain the principle and practical application of the utility model, so that the person skilled in the art can well understand and utilize the utility model. The utility model is limited by the claims and the whole scope and equivalents.

Claims

1. A rotary pressure relief plug comprising a plug body (1), characterized in that, The top of the plug body (1) is fixedly connected with a plug cover (2), the outer wall of the plug body (1) is fixedly connected with a water outlet pipe (8), the outer wall of the water outlet pipe (8) is threadedly sleeved with a connector (9), the inner portion of the water outlet pipe (8) is fixedly connected with two connecting rods (10), one end of the two connecting rods (10) is fixedly connected with a same circular sleeve (11), the inner wall of the circular sleeve (11) is slidably connected with a sliding rod (12), the outer wall of the sliding rod (12) is provided with a long hole, the inner wall of the long hole is threadedly connected with an adjusting rod (13), one end of the adjusting rod (13) is fixedly connected with a circular block (16), the inner portion of the water outlet pipe (8) is provided with a pressure regulating mechanism.

2. A rotational pressure relief plug according to claim 1, wherein The pressure regulating mechanism comprises an annular protrusion (15), the outer wall of the circular block (16) is provided with an annular groove, the inner wall of the annular groove is rotatably connected with the outer wall of the annular protrusion (15), the outer wall of the sliding rod (12) is sleeved with a circular ring (14), the outer wall of the annular protrusion (15) is fixedly connected with the outer wall of the circular ring (14), the outer wall of the sliding rod (12) is sleeved with a spring (18), the outer wall of the circular block (16) is uniformly fixedly connected with a plurality of brushes (17).

3. A rotational pressure relief plug according to claim 1, wherein The outer wall of the plug cover (2) is provided with a through hole, the inner wall of the through hole is threadedly connected with a threaded rod (3), the top of the threaded rod (3) is fixedly connected with a hand wheel (4), the bottom of the threaded rod (3) is fixedly connected with a piston (5).

4. A rotational pressure relief plug according to claim 1, wherein The inner wall of the plug body (1) is fixedly connected with an annular block (6), the outer wall of the annular block (6) is rotatably connected with a plug base (7).

5. A rotational pressure relief plug according to claim 2, wherein, One end of the spring (18) is fixedly connected with the outer wall of the circular sleeve (11), the other end of the spring (18) is fixedly connected with the outer wall of the circular ring (14).

6. A rotational pressure relief plug according to claim 2, wherein, The outer wall of the brush (17) is slidably connected with the inner wall of the water outlet pipe (8).

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