CN217482053U - Pipeline pressure regulating mechanism - Google Patents

Abstract

The application relates to the field of pipeline pressure regulation, in particular to a pipeline pressure regulating mechanism, which comprises a valve body, wherein one end of the valve body is provided with a water inlet, the other end of the valve body is provided with a water outlet, a water inlet channel is arranged in the valve body and communicates the water inlet with the water outlet, a water return opening is arranged on the valve body and communicates with the water inlet channel, a valve ring is arranged in the valve body, a valve core is arranged in the valve body, the end part of the valve core is abutted against the end surface of the valve ring, a pressure regulating component is arranged in the valve body and comprises a pushing piece and a sealing piece, a water return cavity is arranged in the valve body, the water return opening is communicated with the water inlet channel through the water return cavity, the sealing piece is arranged in the water inlet channel and is connected with the pushing piece, a pressure regulating channel is arranged in the valve body, one end of the pressure regulating channel is communicated with the water inlet channel, the other end of the pressure regulating channel is connected with the pushing piece, the problem that a pipeline is damaged under the water hammer effect in the traditional mode is solved, the effect of reducing the damage of the pipeline under the water hammer effect can be achieved.

Description

Pipeline pressure regulating mechanism

Technical Field

The application relates to the field of pipeline pressure regulation, in particular to a pipeline pressure regulating mechanism.

Background

During routine maintenance and cleaning, the purpose of cleaning is usually achieved by using water equipment. In order to supply water to a plurality of water consuming devices, the water consuming devices are generally connected to a main pipe through pipes, the main pipe is connected to a water tank, and then different water consuming devices are used for cleaning.

When one of the consumers is suddenly shut down, the water pressure in the pipe connecting the shut-down consumer increases. In order to balance the pressure in the pipeline, the conventional method generally includes installing an electric valve and a pressure sensor on the pipeline connected to each water consumption device, where the pressure sensor is located between the water consumption device and the electric valve, and the electric valve is provided with two water outlets and one water inlet. The water inlet of the electric valve is communicated with the main pipeline, one water outlet of the electric valve is communicated with water using equipment, and the other water outlet of the electric valve is communicated with the water tank. When the water equipment is closed, the pressure sensor detects the pressure increase in the pipeline connected with the water equipment, so that the electric valve is controlled by the control system to open the water outlet communicated with the water tank, water flows to the water tank, and the pressure in the pipeline is adjusted.

However, when one of the water consuming devices is suddenly closed, the water pressure in the pipe connected to the water consuming device increases, the water supply pressure of the main pipe remains unchanged, and the opening and closing of the water outlet controlled by the electric valve is delayed, so that the water pressure in the other pipe connected to the main pipe is easily increased, and the pipe or the valve body is damaged.

SUMMERY OF THE UTILITY MODEL

In order to reduce the damage of a pipeline or a valve body caused by the increase of water pressure, the application provides a pipeline pressure adjusting mechanism.

The application provides a pipeline pressure adjustment mechanism adopts following technical scheme:

a pipeline pressure adjusting mechanism comprises a main valve plate and a valve body, wherein a water inlet main port is arranged on the main valve plate, a water return main port is further arranged on the main valve plate, a water inlet is arranged at one end of the valve body, the water inlet is communicated with the water inlet main port, a water outlet is arranged at the other end of the valve body, a water inlet channel is formed in the valve body, the water inlet channel is communicated with the water outlet, a water return port is formed in the valve body, the water return port is communicated with the water return main port, the water return port is communicated with the water inlet channel, a valve ring is installed in the valve body, a valve core is further installed between the water outlet and the valve ring and inside the valve body, the end of the valve core is abutted to the end face of the valve ring, a pressure regulating component is arranged inside the valve body and comprises a pushing piece and a sealing piece, a water return cavity is formed above the water inlet channel inside the valve body, and the water return port is communicated with the water inlet channel through the water return cavity, the closing member sets up in inhalant canal department, just the closing member is located the below in return water chamber, just the closing member is through the break-make in top push member control return water chamber, the top push member sets up the top at the closing member, the pressure regulating passageway has been seted up in the valve body, the one end of pressure regulating passageway and the inhalant canal intercommunication that is located case department, the other end and the top of pressure regulating passageway are pushed the piece and are connected.

Through adopting above-mentioned technical scheme, set up the pressure regulating subassembly, conveniently adjust the water pressure in the valve body and the water pressure in the pipeline of being connected with the valve body through the pressure regulating subassembly. Set up the closing member, the convenience makes return water chamber and inhalant canal disconnection through the closing member when water equipment is opened to make rivers flow to the delivery port, when water equipment is closed, open the return water chamber through the closing member, make rivers follow water inlet flow direction return water mouth, thereby reduce the pressure in pipeline and the valve body, thereby reduce pipeline or valve body and produce the damage because of the water hammer effect. The pushing piece is arranged, the work of the sealing piece is conveniently controlled through the pushing piece, so that the connection or disconnection of the water return cavity is controlled, and the effect of adjusting the pressure balance in the pipeline is achieved. The water return cavity is arranged, so that the sealing part and the pushing part can be conveniently installed, and meanwhile, water in the water inlet channel is guided into the water return opening through the water return cavity. The pressure regulating channel is arranged, so that the water hammer effect generated when the water consumption equipment is closed is released to the pushing piece through the pressure regulating channel, the pushing piece controls the sealing piece to work, and the effect of utilizing the water hammer effect is achieved.

In a specific possible embodiment, the sealing member includes a sealing sleeve, a sealing ball and a positioning sleeve, the sealing sleeve is disposed in the water return cavity, the positioning sleeve is disposed at the bottom of the valve body, the sealing ball is disposed between the sealing sleeve and the positioning sleeve, a spring is disposed in the positioning sleeve, the sealing ball is disposed between the spring and the sealing sleeve, one end of the spring abuts against a bottom wall of the positioning sleeve, the other end of the spring abuts against a surface of the sealing ball, and a surface of the sealing ball, which is far away from the spring, abuts against a surface of the sealing sleeve.

By adopting the technical scheme, the sealing sleeve is arranged, and the effect of blocking the water return cavity and the water inlet channel is realized conveniently by matching other components in the sealing sleeve and the sealing piece. And a sealing ball is arranged, so that the connection and disconnection between the water return cavity and the water inlet channel can be conveniently controlled by the sealing ball. The positioning sleeve is arranged, so that the movement of the sealing ball is limited conveniently through the positioning sleeve. The spring is arranged, so that the sealing ball is driven to reset through the spring conveniently, and the water return cavity is disconnected from the water inlet channel.

In a specific implementation mode, one end, facing the closed ball, of the positioning sleeve is provided with a buffer groove, the cross section of the buffer groove is in an inverted cone shape, and the closed ball is located in the buffer groove.

Through adopting above-mentioned technical scheme, set up the dashpot, when the ejector sleeve promoted the closed ball and removed, buffer the impact of rivers to the closed ball through the dashpot to reduce the outside that the closed ball landing reaches the position sleeve. The section of the buffer groove is set to be in an inverted cone shape, so that the movement of the sealed ball due to water flow can be buffered more conveniently.

In a specific implementation scheme, the sealing sleeve is provided with a sealing hole, the sealing hole communicates the water return cavity with the water inlet channel, and the sealing ball abuts against the end face of the sealing hole.

Through adopting above-mentioned technical scheme, set up the closed hole, conveniently realize communicating return water chamber and water inlet channel through the closed hole, simultaneously, set up the closed hole, make the closed ball control the switching on or switching off of return water chamber more easily.

In a specific implementation mode, the positioning sleeve is in threaded connection with the valve body, and the closing sleeve is in threaded connection with the inner wall of the water return cavity.

Through adopting above-mentioned technical scheme, with position sleeve and valve body threaded connection to make the position sleeve be connected more firmly with the valve body. With the inner wall threaded connection in sealing sleeve and return water chamber, be convenient for reduce the sealing sleeve and produce the skew under hydraulic effect to influence the accurate nature of closing member work.

In a specific can embodiment, the ejecting piece includes push rod and kicking block, the kicking block is installed on the push rod, the spout has been seted up to the top that is located the return water chamber in the valve body, the kicking block is installed in the spout, just the lateral wall of kicking block is contradicted with the inner wall of spout, the roof of valve body is passed to the one end of push rod, the other end of push rod passes spout and return water chamber and extends to in the confining hole, just the one end that the push rod is located the confining hole is contradicted with the sealed ball.

Through adopting above-mentioned technical scheme, set up the push rod, conveniently promote the movement of sealed ball through the push rod to the action of opening the closed hole is realized. The ejector block is arranged, so that the water hammer effect is conveniently released on the ejector block, the ejector block is driven to move, the ejector block drives the push rod to move, and the effect that the push rod pushes the sealed ball to move is achieved. The sliding groove is arranged, so that the ejector block is convenient to install in the sliding groove. Contradict the lateral wall of kicking block and the inner wall of spout to improve the leakproofness between kicking block and the spout, thereby reduce the water in the pressure regulating passageway and flow into the return water chamber from the spout.

In a specific embodiment, the diameter of the end of the push rod located in the closed hole is smaller than the diameter of the closed hole.

Through adopting above-mentioned technical scheme, set the diameter that is less than the diameter of closed hole with the diameter that the push rod is located the one end in the closed hole, when making things convenient for the push rod to make the closed ball open the closed hole, can make rivers pass through smoothly from the closed hole.

In a specific implementation scheme, a pressure cavity is formed in the valve body and located above the sliding groove, the pressure cavity is communicated with the sliding groove, and one end, far away from the water inlet channel, of the pressure regulating channel is communicated with the pressure cavity.

Through adopting above-mentioned technical scheme, set up the pressure chamber, conveniently make rivers keep in the pressure chamber to make the water hammer effect pass through the pressure chamber and release to the kicking block on, thereby drive the kicking block and remove.

In a specific possible embodiment, one end of the closed hole close to the closed ball is provided with a chamfer, and the surface of the chamfer is abutted with the surface of the closed ball.

Through adopting above-mentioned technical scheme, set up the chamfer, conveniently increase the area of contact of sealing ball and seal cover through the chamfer to improve the sealing effect of sealing ball to the seal cover.

In a specific can implement scheme, closed groove has been seted up along the surface of circumferencial direction to the chamfer, closed groove's cross-section is T shape, the chamfer has seted up the installing port on the surface, installing port and closed groove intercommunication, closed inslot is equipped with flexible strip, the cross-section of flexible strip is T shape, flexible strip can dismantle through installing port and closed groove and be connected, the lateral wall that flexible strip is located closed inslot is contradicted with closed groove's inner wall, flexible strip is located closed groove outside lateral wall and is contradicted with closed ball's surface.

Through adopting above-mentioned technical scheme, set up the closed groove, conveniently install flexible strip through the closed groove. The section of the closed groove is arranged to be T-shaped, so that the flexible strip is conveniently clamped in the closed groove, and the flexible strip is positioned. The installation opening is arranged, the flexible strip is convenient to install, one end of the flexible strip is inserted into the closed groove from the installation opening, and the flexible strip is pulled along the closed groove, so that the flexible strip completely enters the closed groove. The cross section of the flexible strip is arranged to be T-shaped, and the flexible strip is conveniently clamped in the T-shaped closed groove through the T-shaped flexible strip.

In summary, the present application includes at least one of the following benefits:

1. this application is through setting up the pressure regulating subassembly, and the water hammer effect that produces when conveniently utilizing pipe closure through the pressure regulating subassembly is adjusted the pressure in pipeline and the valve body.

2. This application is through setting up the closure, and the convenience is through the action of drive closure to the backward flow of control rivers, thereby the pressure in control pipeline and the valve body, thereby reduce pipeline or valve body and produce the damage because of the water hammer effect.

3. This application is through setting up the top and pushing away the piece, conveniently utilizes the water hammer effect through pushing away the piece to the realization drives the effect of closing member action.

Drawings

Fig. 1 is a schematic structural view of an embodiment of a valve body assembly of the present application.

Fig. 2 is a sectional view of a valve body in an embodiment of the present application.

Fig. 3 is a schematic structural view of a closure in the embodiment of the present application.

Fig. 4 is a schematic structural diagram of a closure sleeve in an embodiment of the present application.

FIG. 5 is a schematic view of the installation of the flexible strip in an embodiment of the present application.

Fig. 6 is a schematic structural diagram of a voltage regulating assembly in an embodiment of the present application.

Description of reference numerals:

1. a main valve plate; 11. a water inlet main port; 12. a backwater main port; 2. a valve body; 21. a water inlet; 22. a water outlet; 23. a water return port; 24. a water inlet channel; 25. a chute; 26. a water return cavity; 27. a voltage regulating channel; 28. a pressure chamber; 3. a pressure regulating assembly; 4. a closure; 41. a positioning sleeve; 411. a buffer tank; 42. a spring; 43. closing the ball; 44. a sealing sleeve; 441. closing the hole; 442. closing the groove; 443. an installation port; 444. a flexible strip; 5. pushing the piece; 51. a top block; 52. a push rod; 6. a valve core; 61. a water outlet hole; 7. a valve ring.

Detailed Description

The present application is described in further detail below with reference to the attached drawings.

The embodiment of the application discloses pipeline pressure adjustment mechanism, refer to fig. 1, including main valve plate 1 and valve body 2, the one end of main valve plate 1 has been seted up into water and has been always mouthful 11, lies in the top of intaking on the main valve plate 1 and has seted up the return water and always mouthful 12, intakes always mouthful 11 and return water and always mouthful 12 all through pipeline and water tank connection. Valve body 2 fixed mounting is on main valve plate 1, and valve body 2 sets up 1 at least, and valve body 2 arranges along main valve plate 1's length direction for valve body 2 forms a valves with main valve plate 1. One end of the valve body 2 is provided with a water inlet 21, the other end is provided with a water outlet 22, and the water inlet 21 is communicated with the water outlet 22 through a water inlet channel 24. A water return port 23 is formed in the upper portion, located above the water inlet 21, of the valve body 2, the water return port 23 is communicated with a water inlet channel 24, the water inlet 21 of the valve body 2 is communicated with a water inlet main port 11, a water outlet 22 of each valve body 2 is externally connected with water using equipment through a pipeline, and the water return port 23 of the valve body 2 is communicated with a water return main port 12 of the main valve plate 1. A pressure regulating component 3 for regulating water pressure is arranged in the valve body 2.

Referring to fig. 1, the water flow in the water tank passes through the main water inlet 11 into the main valve plate 1, and then the water flow is led into the water inlet channel 24 in the valve body 2 from the water inlet 21 of the valve body 2 through the main valve plate 1, and then the water flow is led into the water consumption equipment from the water outlet 22. When one of the water consuming devices is suddenly closed, the pressure in the pipeline connected with the water consuming device is increased, and at the moment, the pressure in the pipeline is regulated by the pressure regulating assembly 3 in the valve body 2, so that the pressure in the pipeline tends to be balanced.

Referring to fig. 2, the diameter of the water outlet 22 is smaller than that of the water inlet channel 24, a valve core 6 is slidably mounted at one end of the water outlet 22 close to the water inlet channel 24, and the side wall of the valve core 6 is attached to the inner wall of the water inlet channel 24. The inside cavity that is of case 6, and the inside cavity that forms of case 6 and delivery port 22 intercommunication have seted up apopore 61 on the lateral wall of case 6, and apopore 61 is connected inhalant canal 24 and the inside cavity of case 6.

Referring to fig. 2, a valve ring 7 is further fixedly installed between the valve core 6 and the water inlet 21 in the water inlet channel 24, and the end of the valve core 6 abuts against the end face of the valve ring 7.

Referring to fig. 2, the water flow enters the water inlet channel 24 from the water inlet 21 and continues to flow to the end of the valve core 6 along the water inlet channel 24, under the pressure of the water flow, the valve core 6 is pushed toward the water outlet 22, so that the end of the valve core 6 is separated from the end surface of the valve ring 7, thereby opening the portion of the water inlet channel 24 located between the valve ring 7 and the water outlet 22, and the water flow enters the water inlet channel 24 between the valve ring 7 and the water outlet 22 and flows into the cavity inside the valve core 6 from the water outlet 61, and finally flows to the water outlet 22 from the cavity inside the valve core 6 and flows into the external water-using equipment.

Referring to fig. 2, when the water consuming equipment connected to the water outlet 22 is closed, the water pressure at one end of the water outlet 22 increases, forming a water hammer effect, and the valve core 6 is pushed by the water pressure to move towards the valve ring 7, so that the end of the valve core 6 is abutted against the valve ring 7, thereby closing the part of the water inlet channel 24 located between the valve ring 7 and the water outlet 22, and thus blocking the water flow from further entering the pipeline connected to the water consuming equipment.

Referring to fig. 3, the pressure regulating assembly 3 includes a sealing member 4, the sealing member 4 includes a sealing sleeve 44, a sealing ball 43 and a positioning sleeve 41, the positioning sleeve 41 passes through the bottom of the valve body 2 and is in threaded connection with the valve body 2, the positioning sleeve 41 extends into the water inlet channel 24, one end of the positioning sleeve 41 located in the valve body 2 is provided with a buffer slot 411, and the cross section of the buffer slot 411 is in an inverted cone shape. The sealing ball 43 is arranged in the positioning sleeve 41, the spring 42 is also arranged in the positioning sleeve 41, one end of the spring 42 is abutted against the bottom wall of the positioning sleeve 41, and the other end of the spring 42 is abutted against the sealing ball 43.

Referring to fig. 3, a water return cavity 26 is formed in the valve body 2 above the water inlet channel 24, one end of the water return cavity 26 is communicated with the water return port 23, and the other end is communicated with the water inlet channel 24. The closing sleeve 44 is screwed on the end of the water return chamber 26 near the water inlet passage 24, and the water return chamber 26 is disconnected from the water inlet passage 24 by the closing sleeve 44. The sealing sleeve 44 is provided with a sealing hole 441, and the water inlet channel 24 is communicated with the water return cavity 26 through the sealing hole 441. The closing sleeve 44 is positioned below the water return port 23, and a surface of one end of the closing hole 441 of the closing sleeve 44 away from the water return port 23 abuts against a surface of the closing ball 43.

Referring to fig. 3 and 4, one end of the closed hole 441 close to the closed ball 43 is provided with a chamfer, a closed groove 442 is formed on the surface of the chamfer along the circumferential direction of the closed hole 441, and the cross section of the closed groove 442 is T-shaped. The chamfered surface is provided with a mounting opening 443, and the mounting opening 443 communicates with the closed groove 442.

Referring to fig. 4 and 5, a flexible strip 444 is detachably mounted in the closed slot 442, and the flexible strip 444 is made of a flexible material. The cross section of the flexible strip 444 in the length direction is in a T shape, the flexible strip 444 is clamped in the closed groove 442, the side wall of one end of the flexible strip 444, which is positioned in the closed groove 442, abuts against the inner wall of the closed groove 442, and the other end of the flexible strip 444 extends out of the closed groove 442.

Referring to fig. 4 and 5, one end of the flexible strip 444 in the length direction is inserted into the closed groove 442 from the mounting opening 443, and the flexible strip 444 is pulled along the closed groove 442 such that one end of the flexible strip 444 in the width direction is mounted in the closed groove 442, such that the flexible strip 444 is connected end to form a loop shape, and such that the two ends of the flexible strip 444 connected end to end are offset from the mounting opening 443.

Referring to fig. 3 and 5, the surface of the flexible strip 444 extending out of the closed loop interferes with the surface of the closing ball 43.

Referring to fig. 3 and 5, the sealing ball 43 abuts against the chamfered surface at the sealing hole 441 and the surface of the flexible strip 444, thereby increasing the contact area of the sealing ball 43 with the sealing sleeve 44, and thus improving the sealing effect of the sealing ball 43. When the closing ball 43 abuts against the surface of the flexible strip 444, the closing ball 43 presses the flexible strip 444 to deform the flexible strip 444, so that the flexible strip 444 fills the closing groove 442, and the sealing performance of the flexible strip 444 is further improved.

Referring to fig. 3, a sliding groove 25 is formed above the water return cavity 26 in the valve body 2, a pressure cavity 28 is formed above the sliding groove 25 in the valve body 2, and the pressure cavity 28 is communicated with the sliding groove 25. The valve body 2 is also internally provided with a pressure regulating channel 27, one end of the pressure regulating channel 27 is communicated with a pressure cavity 28, and the other end is communicated with a water inlet channel 24 positioned at the end part of the valve core 6.

Referring to fig. 6, the pressure regulating assembly 3 further includes an ejector 5, the ejector 5 includes a push rod 52 and an ejector block 51, the ejector block 51 is disposed on the push rod 52, and the ejector block 51 and the push rod 52 are integrally formed. The top block 51 is slidably mounted in the slide groove 25, and the side wall of the top block 51 abuts against the inner wall of the slide groove 25. The push rod 52 is slidably mounted on the valve body 2, one end of the push rod passes through the upper wall of the valve body 2, the other end of the push rod passes through the sliding groove 25 and extends into the closed hole 441, the diameter of the push rod 52 in the water return cavity 26 is smaller than that of the closed hole 441, and the end of the push rod 52 in the closed hole 441 is abutted against the closed ball 43.

Referring to fig. 6, when the water-consuming device connected to the water outlet 22 is opened, water flows into the water inlet channel 24 in the valve body 2 from the water inlet 21, and pushes the valve core 6 toward the water outlet 22, so that the valve core 6 is separated from the valve ring 7, thereby opening the water inlet channel 24 between the valve ring 7 and the water outlet 22, and then a part of the water flows out from the water outlet 22, and another part of the water flows into the pressure chamber 28 at the upper end of the sliding groove 25 along the pressure regulating channel 27, so that the water pressure in the valve body 2 is kept balanced, and at this time, the sealing ball 43 abuts against the sealing sleeve 44, so that the water return chamber 26 is disconnected from the water inlet channel 24.

Referring to fig. 6, when the water-consuming equipment connected to the water outlet 22 is closed, the water pressure between the valve ring 7 and the water outlet 22 increases, so that the valve element 6 is pushed toward the valve ring 7, the end of the valve element 6 abuts against the end face of the valve ring 7, and the portion of the water inlet passage 24 between the valve ring 7 and the water outlet 22 is closed. At the same time, the water hammer effect caused by the increase of the water pressure between the valve ring 7 and the water outlet 22 releases the water pressure into the pressure chamber 28 through the pressure regulating passage 27. The water pressure in the pressure chamber 28 pushes the top block 51 towards the direction of the sealing ball 43, so that the top block 51 drives the push rod 52 to abut against the sealing ball 43 and drives the sealing ball 43 to move downwards in the buffer slot 411, so that the sealing ball 43 compresses the spring 42, thereby opening the sealing hole 441, and the water flow entering the valve body 2 from the water inlet 21 flows into the backflow chamber from the sealing hole 441 and flows into the backflow port, thereby balancing the pressure in the valve body 2.

The working principle of the embodiment of the application is as follows: the water inlet main port 11 of the main valve plate 1 is communicated with an external water tank through a pipeline, and the water return main port 12 on the main valve plate 1 is communicated with the external water tank through a pipeline. A plurality of valve bodies 2 are fixedly arranged on the main valve plate 1, the water inlet 21 of each valve body 2 is communicated with the water inlet main port 11, and the water return port 23 on each valve body 2 is communicated with the water return main port 12. The water outlet 22 of each valve body 2 is communicated with external water equipment through a pipeline.

When the external water consuming equipment is in an open state, water flows from the external water tank into the water inlet main port 11 of the main valve plate 1, enters the water inlet channels 24 in the valve bodies 2 through the water inlets 21 on the valve bodies 2, and flows towards the water outlet 22 of the valve bodies 2, and at the moment, the sealing balls 43 abut against the chamfers and the flexible strips 444 at the sealing holes 441 to disconnect the water return cavity 26 from the water inlet channels 24. Make the pressure of rivers promote the valve core 6 to the 22 direction of delivery port slip, thereby open the part that inhalant canal 24 is located between valve ring 7 and delivery port 22, make rivers flow to in the delivery port 22 through apopore 61 on the valve core 6 lateral wall, and flow to the water equipment through the pipeline, when rivers flow through the apopore 61 of valve core 6, partly rivers flow into pressure chamber 28 through pressure regulating channel 27, when rivers normally flow, the pressure in valve body 2 and the pipeline keeps balanced, make pressure regulating assembly 3 not take place the action.

When one of the external water consuming devices is suddenly closed, the water pressure in the pipeline connected with the water consuming device is suddenly increased, and the water supply pressure in the pipelines of other normally working water consuming devices is kept unchanged, so that the pipeline at the closed water consuming device generates a water hammer effect, and the pressure regulating assembly 3 in the valve body 2 for controlling the water consuming device starts to work.

When the pressure regulating assembly 3 in the valve body 2 works, the valve core 6 is driven by the water hammer effect to move towards the valve ring 7 and abut against the valve ring 7, so that the part of the water inlet channel 24 between the valve ring 7 and the water outlet 22 is sealed. Meanwhile, the water hammer effect enters the pressure chamber 28 through the pressure regulating channel 27 and releases the pressure, so that the top block 51 is pushed to move towards the sealing ball 43, the push rod 52 is driven to push the sealing ball 43 downwards, the sealing hole 441 is opened, the water entering the valve body 2 from the water inlet 21 enters the water return chamber 26 from the sealing hole 441 and enters the water return main port 12 through the water return port 23, and then flows back to the external water tank again, and the water pressure in the closed pipeline of the water consumption equipment and the water pressure in the valve body 2 controlling the pipeline are kept balanced.

The above is the preferred embodiment of the present application, and the protection scope of the present application is not limited thereby, so: all equivalent changes in the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (10)

1. The utility model provides a pipeline pressure adjustment mechanism, includes main valve plate (1) and valve body (2), be equipped with into water on main valve plate (1) and always mouthful (11), still be equipped with return water on main valve plate (1) and always mouthful (12), the one end of valve body (2) is equipped with water inlet (21), water inlet (21) and the total mouthful (11) intercommunication of intaking, the other end of valve body (2) is equipped with delivery port (22), intake passage (24) have been seted up in valve body (2), intake passage (24) are with water inlet (21) and delivery port (22) intercommunication, return water mouth (23) have been seted up on valve body (2), return water mouth (23) and the total mouthful (12) intercommunication of return water, return water mouth (23) and intake passage (24) intercommunication, install valve ring (7) in valve body (2), still install case (6) between delivery port (22) and valve ring (7) in valve body (2), the tip of case (6) is contradicted with the terminal surface of valve ring (7), its characterized in that: a pressure regulating component (3) is arranged in the valve body (2), the pressure regulating component (3) comprises a pushing piece (5) and a closing piece (4), a water return cavity (26) is arranged above the water inlet channel (24) in the valve body (2), the water return port (23) is communicated with the water inlet channel (24) through a water return cavity (26), the closing piece (4) is arranged at the water inlet channel (24), the closing piece (4) is positioned below the water return cavity (26), the closing piece (4) controls the on-off of the water return cavity (26) through the pushing piece (5), the pushing piece (5) is arranged above the closing piece (4), a pressure regulating channel (27) is arranged in the valve body (2), one end of the pressure regulating channel (27) is communicated with a water inlet channel (24) positioned at the valve core (6), and the other end of the pressure regulating channel (27) is connected with the pushing piece (5).

2. The pipe pressure adjusting mechanism according to claim 1, wherein: closure member (4) are including closing sleeve (44), closed ball (43) and position sleeve (41), closing sleeve (44) set up in return water chamber (26), position sleeve (41) set up the bottom at valve body (2), closed ball (43) set up between closing sleeve (44) and position sleeve (41), be equipped with spring (42) in position sleeve (41), closed ball (43) set up between spring (42) and closing sleeve (44), the one end of spring (42) is contradicted with the diapire of position sleeve (41), and the other end is contradicted with the surface of closing ball (43), the surface that spring (42) were kept away from in closed ball (43) is contradicted with the surface of closing sleeve (44).

3. The pipe pressure adjusting mechanism according to claim 2, wherein: buffer slot (411) have been seted up towards the one end of closed ball (43) to position sleeve (41), buffer slot (411) cross-section is the back taper, closed ball (43) are located buffer slot (411).

4. A pipeline pressure adjustment mechanism according to claim 3, wherein: the sealing sleeve (44) is provided with a sealing hole (441), the water return cavity (26) is communicated with the water inlet channel (24) through the sealing hole (441), and the sealing ball (43) is abutted to the end face of the sealing hole (441).

5. The pipe pressure adjusting mechanism according to claim 4, wherein: the locating sleeve (41) is in threaded connection with the valve body (2), and the sealing sleeve (44) is in threaded connection with the inner wall of the water return cavity (26).

6. The pipe pressure adjusting mechanism according to claim 1, wherein: ejector pad (5) include push rod (52) and kicking block (51), install on push rod (52) kicking block (51), spout (25) have been seted up to the top that is located return water chamber (26) in valve body (2), install in spout (25) kicking block (51), just the lateral wall of kicking block (51) is contradicted with the inner wall of spout (25), the roof of valve body (2) is passed to the one end of push rod (52), the other end of push rod (52) passes spout (25) and return water chamber (26) and extends to in closed hole (441), just push rod (52) are located closed hole (441) one end and are contradicted with closed ball (43).

7. The pipe pressure adjusting mechanism according to claim 6, wherein: the outer diameter of one end of the push rod (52) positioned in the closed hole (441) is smaller than the inner diameter of the closed hole (441).

8. The pipe pressure adjusting mechanism according to claim 7, wherein: pressure chamber (28) have been seted up to the top that lies in spout (25) in valve body (2), pressure chamber (28) and spout (25) intercommunication, the one end and pressure chamber (28) intercommunication of inhalant canal (24) are kept away from in pressure regulating passageway (27).

9. The pipe pressure adjusting mechanism according to claim 4, wherein: one end of the closed hole (441) close to the closed ball (43) is provided with a chamfer, and the surface of the chamfer is abutted against the surface of the closed ball (43).

10. The pipe pressure adjusting mechanism according to claim 9, wherein: the surface of the chamfer along the circumferential direction is provided with a closed groove (442), the section of the closed groove (442) is T-shaped, the surface of the chamfer is provided with an installation opening (443), the installation opening (443) is communicated with the closed groove (442), a flexible strip (444) is arranged in the closed groove (442), the section of the flexible strip (444) is T-shaped, the flexible strip (444) is detachably connected with the closed groove (442) through the installation opening (443), the side wall of the flexible strip (444) located in the closed groove (442) is abutted to the inner wall of the closed groove (442), and the side wall of the flexible strip (444) located outside the closed groove (442) is abutted to the surface of the closed ball (43).

Images