CN215334591U - Valve and liquid supply system - Google Patents

Abstract

The disclosure relates to the technical field of fluid control devices, in particular to a valve and a liquid supply system. The driving valve core is rotated relative to the valve body through the switch mechanism, so that the first through hole and the second through hole are communicated or disconnected, the connection and disconnection between the inlet of the valve and the outlet of the valve are realized, and the friction force between the valve core and the valve body can be reduced when the valve is switched on and switched off; when the sealing performance between the valve core and the valve body is not as expected, the compensation adjusting mechanism is configured to adjust the distance between the valve core and the valve body so as to meet the expected sealing requirement; when the friction force between the valve core and the valve body is too large and the valve core cannot be driven to rotate by the switch mechanism, the pressure between the inlet of the valve and the pressure cavity is adjusted by the anti-locking mechanism, so that the valve core is separated from the valve body.

Description

Valve and liquid supply system

Technical Field

The disclosure relates to the technical field of fluid control devices, in particular to a valve and a liquid supply system.

Background

The common defects of the prior valves are that a valve core needs to bear the force from the direction of fluid, when the valve core is opened and closed, the valve core and the valve body can bear larger friction force, the pipe diameter and the fluid pressure are smaller in general production and life, the valve core is not easy to open and close, but the valve can be closed untight frequently, the valve core and a valve rod fall off and are damaged separately, and the reason is that the friction force of the valve core to the valve body caused by the pressure of the fluid on the valve core causes the damage of a sealing structure and the valve rod. In the large industrial oil and gas chemical industry, the valve is opened and closed through a motor speed changing device, but in the case of fire and the like, the valve is mostly opened and closed through manpower rather than through electric power, and the valve can be closed only by rotating dozens of turns or even hundreds of turns.

SUMMERY OF THE UTILITY MODEL

The present disclosure provides a valve and a liquid supply system, which solve the technical problem that the opening and closing of the valve is affected by the larger friction force between a valve core and a valve body when the valve core is opened and closed.

The present disclosure provides a valve, comprising:

a main body part including a valve core and a valve body, a pressure chamber is provided between the valve core and the valve body, the valve core has a first through hole, the valve body has a second through hole, and the valve core is configured to rotate relative to the valve body so as to connect or disconnect the first through hole and the second through hole;

a switch mechanism configured to drive rotation of the spool;

a compensation adjustment mechanism configured to adjust a spacing between the valve spool and the valve body; and

an anti-lock mechanism configured to adjust a pressure between an inlet of the valve and the pressure chamber.

In any of the above technical solutions, further, the valve body has an accommodating chamber, the second through hole is opened on a chamber wall of the accommodating chamber, the valve core is disposed in the accommodating chamber, the valve core has a fluid chamber, and the first through hole is opened on the chamber wall of the fluid chamber; the pressure cavity is formed between the outer bottom surface of the valve core and the bottom of the accommodating cavity; the valve core is configured to rotate around an axis of the valve core relative to the valve body, so that fluid flows through the first through hole and the second through hole along the radial direction of the valve core.

In any of the above technical solutions, further, the switch mechanism includes a gear transmission mechanism, and the gear transmission mechanism includes a first bevel gear disposed on an outer bottom surface of the valve core, and a second bevel gear engaged with the first bevel gear.

In any one of the above technical solutions, further, the compensation adjustment mechanism includes a thrust block and a sliding block, one surface of the thrust block abuts against one surface of the sliding block, and the sliding block is configured to move along a radial direction of the valve core so as to push the valve core to move along an axial direction of the valve core through the thrust block; the other opposite surface of the thrust block is matched with the outer bottom surface of the valve core.

In any of the above technical solutions, further, the opposite surface of the thrust block has raised structures and recessed structures alternately arranged around a circumference, and the outer bottom surface of the valve core has raised structures and recessed structures alternately arranged around a circumference; the convex structure and the concave structure between the other surface opposite to the thrust block and the outer bottom surface of the valve core are configured to enable the valve core to reciprocate in the axial direction of the valve core when the valve core rotates around the axis of the valve core.

In any of the above technical solutions, further, the anti-lock mechanism includes:

a pressure equalizing line configured to be connected between an inlet of the valve and the pressure chamber;

the floating piston assembly is arranged on the pressure equalizing pipeline, one end of the floating piston assembly is communicated with the inlet of the valve, and the other end, opposite to the floating piston assembly, of the floating piston assembly is communicated with the pressure cavity; and

the filling nozzle is arranged on the flat pressure pipeline and located on one side of the flat pressure pipeline communicated with the pressure cavity, and the filling nozzle is configured to inject fluid into the pressure cavity.

In any one of the above technical solutions, further, the number of the first through holes is plural, the number of the second through holes is plural, the plural first through holes are configured to form plural first hole groups, and the plural second through holes are configured to form plural second hole groups; the first hole groups and the second hole groups are arranged in a one-to-one correspondence mode.

In any of the above technical solutions, further, the outer surface of the valve core has a sealing layer.

The present disclosure also provides a liquid supply system comprising the valve.

In any of the above technical solutions, further, the liquid supply system further includes a liquid supply pipe and a foreign matter removing mechanism, the liquid supply pipe has a discharge port, the foreign matter removing mechanism is disposed at the discharge port, the foreign matter removing mechanism includes a valve plate, an elastic member and a support seat, the elastic member is located between the support seat and the valve plate, and the valve plate is configured to overcome an elastic force of the elastic member and move relative to the support seat, so that the discharge port is opened.

The beneficial effect of this disclosure mainly lies in:

according to the valve and the liquid supply system, the driving valve core is rotated relative to the valve body through the switch mechanism, so that the first through hole and the second through hole are communicated or disconnected, the connection and disconnection between the inlet of the valve and the outlet of the valve are realized, and the friction force between the valve core and the valve body can be reduced when the valve is switched on and switched off; when the sealing performance between the valve core and the valve body is not as expected, the compensation adjusting mechanism is configured to adjust the distance between the valve core and the valve body so as to meet the expected sealing requirement; when the friction force between the valve core and the valve body is too large and the valve core cannot be driven to rotate by the switch mechanism, the pressure between the inlet of the valve and the pressure cavity is adjusted by the anti-locking mechanism, so that the valve core is separated from the valve body.

It is to be understood that both the foregoing general description and the following detailed description are for purposes of illustration and description and are not necessarily restrictive of the disclosure. The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate the subject matter of the disclosure. Together, the description and drawings serve to explain the principles of the disclosure.

Drawings

In order to more clearly illustrate the embodiments of the present disclosure or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present disclosure, and other drawings can be obtained by those skilled in the art without creative efforts.

FIG. 1 is a schematic diagram of a valve according to one or more embodiments;

FIG. 2 is a schematic diagram of a valve according to one or more embodiments without a valve element;

FIG. 3 is a schematic diagram of a valve cartridge in one or more embodiments;

FIG. 4 is a diagram of one or more embodiments of a thrust block with a raised feature in contact with a raised feature between an outer bottom surface of a valve core;

FIG. 5 is a diagram of one or more embodiments of a thrust block with a raised feature in contact with a recessed feature between an outer bottom surface of a spool;

FIG. 6 is a schematic diagram of an outer bottom surface of a valve cartridge having alternating raised and recessed features about a circumference according to one or more embodiments;

FIG. 7 is a schematic diagram of a combination of two sliders in one or more embodiments;

FIG. 8 is a schematic structural view of a valve element with a sealing layer mounted on the outer peripheral surface thereof according to one or more embodiments;

FIG. 9 is a schematic diagram of a valve according to some embodiments;

FIG. 10 is a schematic diagram of a liquid supply system in accordance with one or more embodiments.

Icon:

101-a valve core; 102-a valve body; 103-a first via; 104-a second via; 105-a pressure chamber; 106-a containing cavity; 107-outer shell; 108-an inner housing; 109-sealing ring; 110-a thrust block; 111-a slider; 112-a guide bar; 113-inclined plane; 115-raised structures; 116-a recessed structure; 117-first bevel gear; 118-a second bevel gear; 119-a drive shaft; 120-a first motor; 121-a hydro-generator; 122-flat pressure pipeline; 123-filling nozzle; 124-a balancing valve; 125-a sealing layer; 126-a flow nozzle; 127-an adjusting screw; 200-an object discharge port; 201-valve plate 202-spring; 203-a support seat; 204-pressure storage cavity; 205-a one-way valve plate; 206-branch lines; 207-liquid supply duct.

Detailed Description

The technical solutions of the present disclosure will be described clearly and completely with reference to the accompanying drawings, and it is to be understood that the described embodiments are only some embodiments of the present disclosure, but not all embodiments.

All other embodiments, which can be derived by a person skilled in the art from the embodiments disclosed herein without making any creative effort, shall fall within the protection scope of the present disclosure.

In the description of the present disclosure, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of describing and simplifying the present disclosure, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present disclosure. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present disclosure, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present disclosure can be understood in specific instances by those of ordinary skill in the art.

Referring to fig. 1, in one or more embodiments, there is provided a valve comprising: the device comprises a main body part, a switch mechanism, a compensation adjusting mechanism and an anti-locking mechanism; the main body part comprises a valve core 101 and a valve body 102, a pressure cavity 105 is arranged between the valve core 101 and the valve body 102, the valve core 101 is provided with a first through hole 103, the valve body 102 is provided with a second through hole 104, and the valve core 101 is configured to rotate relative to the valve body 102 so as to enable the first through hole 103 to be communicated with or disconnected from the second through hole 104; the switching mechanism is configured to drive the valve plug 101 to rotate; the compensation adjustment mechanism is configured to adjust a spacing between the spool 101 and the valve body 102; the anti-lock mechanism is configured to regulate the pressure between the inlet of the valve and the pressure chamber 105.

Referring to fig. 2 and 3, in some embodiments, the valve core 101 is inserted into the valve body 102, and the switching mechanism drives the valve core 101 to rotate around the axis of the valve core 101 itself, so that when the first through hole 103 and the second through hole 104 are misaligned and not overlapped, the first through hole 103 and the second through hole 104 are not communicated, thereby closing the valve; the valve element 101 is driven by the switching mechanism to rotate around the axis of the valve element 101, so that the first through hole 103 and the second through hole 104 are overlapped, and the first through hole 103 is communicated with the second through hole 104, so that the valve is opened. When the first through hole 103 communicates with the second through hole 104, the fluid enters from the valve body 101, flows through the first through hole 103 and the second through hole 104 in sequence, and finally flows out from the outlet of the valve body 102. When the sealing performance between the valve core 101 and the valve body 102 does not meet the set expectation, the distance between the valve core 101 and the valve body 102 is adjusted by the compensation adjusting mechanism, and when the first through hole 103 and the second through hole 104 are dislocated and not communicated, fluid cannot enter the second through hole 104 from a gap between the valve core 101 and the valve body 102 to generate leakage. When the pressure at the inlet of the valve is too high and the valve is closed for a long time, the friction force between the valve core 101 and the valve body 102 is too high, and the switch mechanism cannot drive the valve core 101 to rotate, the anti-lock mechanism is favorable for adjusting the pressure between the inlet of the valve and the pressure cavity 105, so that the valve core 101 is separated from the valve body 102, and the valve core 101 is convenient to rotate. In one embodiment, the fluid is a liquid, and the liquid is water.

In the liquid supply system provided in at least one embodiment, the valve core 101 is driven to rotate relative to the valve body 102 through the switch mechanism, so that the first through hole 103 and the second through hole 104 are communicated or disconnected, thereby realizing the connection and disconnection between the inlet of the valve and the outlet of the valve, and being beneficial to reducing the friction force between the valve core 101 and the valve body 102 when the valve is opened and closed; when the sealing performance between the valve core 101 and the valve body 102 is not as expected, the compensation adjusting mechanism is configured to adjust the distance between the valve core 101 and the valve body 102 so as to meet the expected sealing requirement; when the valve element 101 cannot be driven to rotate by the switching mechanism due to excessive friction force between the valve element 101 and the valve body 102, the pressure between the inlet of the valve and the pressure chamber 105 is adjusted by the anti-locking mechanism, so that the valve element 101 is separated from the valve body 102.

In some embodiments, the valve body 102 has a receiving cavity 106, the second through hole 104 opens on a cavity wall of the receiving cavity 106, the valve core 101 is disposed in the receiving cavity 106, the valve core 101 has a fluid cavity, and the first through hole 103 opens on a cavity wall of the fluid cavity; a pressure cavity 105 is formed between the outer bottom surface of the valve core 101 and the bottom of the accommodating cavity 106; the spool 101 is configured to rotate about its own axis relative to the valve body 102 to cause fluid to flow through the first through hole 103 and the second through hole 104 in the radial direction of the spool 101. Through the setting of the accommodating cavity 106, the valve core 101 is inserted into the accommodating cavity 106, the fluid cavity is further arranged, the second through hole 104 is arranged on the cavity wall of the accommodating cavity 106, the first through hole 103 is arranged on the cavity wall of the fluid cavity, the radial flow of the fluid along the valve core 101 is realized, the pressure of the fluid on the valve core 101 is reduced, and the valve core 101 is driven to rotate conveniently.

In one embodiment, the valve body 102 includes an outer housing 107 and an inner housing 108 connected to the outer housing 107, the accommodation chamber 106 is defined by the inner housing 108, the inner housing 108 has a closed-end barrel shape, and the valve core 101 has a closed-end barrel shape; inner housing 108 is located within outer housing 107. A valve cavity is formed between inner shell 108 and outer shell 107. After flowing out of the second through hole 104, the fluid enters the valve chamber, and finally the outlet of the valve body 102 (i.e., the outlet of the valve chamber) flows out. The cover that is close to the one end of the bottom in holding chamber 106 of case 101 is equipped with sealing washer 109, has seted up the seal groove on the concrete case 101, and the sealing washer is spacing in the seal groove, and the sealing washer adopts the sealing washer that is used for the movive seal, for example: a Y-seal or a YX-seal. The valve core 101 rotates around its own axis relative to the valve body 102 to connect or disconnect the first through hole 103 and the second through hole 104, and when the first through hole 103 and the second through hole 104 are connected, fluid flows through the first through hole 103 and the second through hole 104 in the radial direction of the valve core 101, flows out of the second through hole 104, and enters the valve cavity of the valve body 102.

In some embodiments, the number of first through holes 103 is plural, the number of second through holes 104 is plural, the plural first through holes 103 are configured to form a plurality of first hole groups, the plural second through holes 104 are configured to form a plurality of second hole groups; the plurality of first hole groups and the plurality of second hole groups are arranged in a one-to-one correspondence manner. The plurality of first through holes 103 and the plurality of second through holes 104 are provided to improve the throughput.

In one embodiment, the first through hole 103 and the second through hole 104 are both circular holes, or both elliptical holes. The plurality of first hole groups are uniformly distributed around the circumferential direction of the valve core 101, and the plurality of first through holes 103 in each first hole group are uniformly distributed at intervals in the axial direction of the valve core 101; the plurality of second hole groups are uniformly distributed along the circumferential direction of the accommodating cavity 106, and the plurality of second through holes 104 in each second hole group are uniformly spaced along the axial direction of the accommodating cavity 106. The number of first hole groups is equal to the number of second hole groups, and the number of first through holes 103 in each first hole group is equal to the number of second through holes 104 in each second hole group.

In some other embodiments, the first and second through holes 103 and 104 are both strip-shaped holes.

In some embodiments, the compensation adjustment mechanism comprises a thrust block 110 and a sliding block 111, one face of the thrust block 110 being in abutment with one face of the sliding block 111, the sliding block 111 being configured to move itself in the radial direction of the spool 101 to push the spool 101 to move in the axial direction of the spool 101 itself by means of the thrust block 110; the opposite side of the thrust block 110 is engaged with the outer bottom surface of the valve core 101. The thrust block 110 and the sliding block 111 are arranged to facilitate the adjustment of the axial position of the valve core 101 to adjust the sealing performance.

Referring to fig. 7, in one embodiment, the number of the sliding blocks 111 is two, a radial guide structure is disposed between the sliding blocks 111 and the bottom of the accommodating cavity 106, so that the sliding blocks 111 move along the radial direction of the valve core 101 and cannot rotate around the axis of the valve core 101, the radial guide structure includes a guide strip 112 disposed on the sliding blocks 111, and a guide groove disposed on the bottom of the accommodating cavity 106, the guide strip is limited in the guide groove, and the length extension direction of the guide groove is consistent with the radial direction of the valve core 101. One surface of the slider 111 is inclined; one surface of the thrust block 110 is inclined. The inclined surface of the thrust block 110 is high in the middle and low in the sides. The two sliding blocks 111 are connected through an adjusting screw 127, the adjusting screw extends out of the valve body 102, and a sealing ring can be arranged between the adjusting screw and the valve body 102 to ensure sealing. When the adjusting screw is rotated, due to the action of the inclined surface 113 of the sliding block 111 and the inclined surface 113 of the thrust block 110, when the distance between the two sliding blocks 111 increases, the thrust block 110 moves towards the inlet end of the valve body 102, so that the gap between the valve core 101 and the cavity wall of the accommodating cavity 106 of the valve body 102 increases, and conversely, when the distance between the two sliding blocks 111 decreases, the thrust block 110 moves towards the outlet end of the valve body 102, so that the gap between the valve core 101 and the cavity wall of the accommodating cavity 106 of the valve body 102 decreases, and the sealing performance between the valve core 101 and the valve body 102 can be enhanced. It should be noted that the guide groove may be a dovetail groove, and the cross section of the guide strip corresponds to the cross section of the dovetail groove.

In one embodiment, an axial guide structure is arranged between the thrust block 110 and the cavity wall of the accommodating cavity 106, so that the thrust block 110 moves along the axial direction of the valve core 101 and cannot rotate around the axis of the valve core 101, the axial guide structure comprises a guide strip 112 arranged on the thrust block 110 and a guide groove arranged on the cavity wall of the accommodating cavity 106, the guide strip is limited in the guide groove, and the length extension direction of the guide groove is consistent with the axial direction of the valve core 101. The number of the axial guiding structures is one or more than two. The adjusting screw has two sections of external threads with opposite rotation directions, similarly, the rotation directions of the internal threads of the threaded holes of the two sliding blocks 111 are opposite, for example, the rotation direction of the external thread of one section of the adjusting screw 127 is right-handed, the rotation direction of the external thread of one section of the adjusting screw 127 is left-handed, the rotation direction of the internal thread of one sliding block 111 is right-handed, and the rotation direction of the internal thread of the other sliding block 111 is left-handed, so that the distance between the two sliding blocks is increased or decreased when the adjusting screw 127 rotates. It should be noted that the guide groove may be a dovetail groove, and the cross section of the guide strip corresponds to the cross section of the dovetail groove. It should be further noted that a surface guide structure may be disposed on the inclined surface where the sliding block 111 and the thrust block 110 are in contact with each other, so as to replace the axial guide structure and the radial guide structure, so that since the adjusting screw rod is disposed on the valve body in a penetrating manner, the adjusting screw rod only rotates around its own axis, but cannot rotate around the axis of the valve core, and thus the surface guide structure can achieve radial guide of the sliding block 111 and axial guide of the thrust block 110, and prevent the thrust block 110 from rotating; the surface guide structure comprises a guide strip arranged on the inclined surface of the sliding block 111 and a guide groove arranged on the inclined surface of the thrust block 110; in addition, on the basis of arranging a surface guide structure, a convex central column can be arranged on the thrust block 110 and inserted into a central blind hole arranged on the valve core,

this prevents the thrust piece 110 from being displaced in the radial direction of the spool.

Referring to fig. 4, 5 and 6, in some embodiments, the opposite side of the thrust block 110 has raised structures 115 and recessed structures 116 alternately arranged around a circumference, and the outer bottom surface of the spool 101 has raised structures 115 and recessed structures 116 alternately arranged around a circumference; the convex structure 115 and the concave structure 116 between the other surface of the thrust block 110 opposite to the outer bottom surface of the valve body 101 are configured to reciprocate the valve body 101 in the axial direction of the valve body 101 itself when the valve body 101 rotates about its axis. The rotation of the valve core 101 is facilitated by the arrangement of the convex structure 115 and the concave structure 116, so that the valve can be opened and closed conveniently.

In one embodiment, the raised structures 115 and the recessed structures 116 are both curved structures, and the raised structures 115 and the recessed structures 116 have smooth transitions therebetween. The number of raised structures 115 is equal to the number of first hole groups. When the convex structure 115 of the thrust block 110 is in contact with the convex structure 115 between the outer bottom surfaces of the valve core 101, the valve is opened, the first through hole 103 corresponds to the second through hole 104, and the first through hole 103 is communicated with the second through hole 104; when the convex structure 115 of the thrust block 110 is in contact with the concave structure 116 between the outer bottom surfaces of the valve core 101, the valve is closed, the first through hole 103 and the second through hole 104 are staggered, and the first through hole 103 is not communicated with the second through hole 104.

In some embodiments, the switching mechanism includes a gear train including a first bevel gear 117 disposed on the outer bottom surface of the spool 101, and a second bevel gear 118 engaged with the first bevel gear 117. The change in the displacement of the spool 101 in its axial direction caused by the raised and recessed formations 115, 116 is accommodated by the cooperation of the first bevel gear 117 and the second bevel gear 118 of the gear train of the switching mechanism. It should be noted that the height difference between the convex structure and the concave structure is determined by the fact that the valve core can be driven to rotate by the opening and closing mechanism.

In one embodiment, first bevel gear 117 meshes with second bevel gear 118 to effect rotation of spool 101. The first bevel gear 117 is integrally formed with the outer bottom surface of the spool 101. The second bevel gear 118 is mounted on a drive shaft 119, and a seal ring is provided between the drive shaft 119 and the valve body 102 to ensure sealing performance in use. The drive shaft 119 extends outside the valve body 102.

In some other embodiments, drive shaft 119 is axially displaced in itself to adjust the backlash between first bevel gear 117 and second bevel gear 118.

In one embodiment, a handle is attached to the drive shaft 119 to facilitate manual actuation of the valve to open or close.

In another embodiment, the driving shaft 119 is connected to a first motor 120, and the first motor 120 drives the driving shaft 119 to rotate, thereby opening or closing the valve. Referring to fig. 9, in some other embodiments, the outlet end of the valve is installed with a hydro-generator 121, and power is generated by the hydro-generator 121, and a storage battery stores the power generated by the hydro-generator 121 and is used to provide power to the first motor 120.

In some embodiments, the anti-lock mechanism comprises: a flat pressure line 122, a floating piston assembly and a fill nozzle 123; the pressure equalizing tube is configured to be connected between the inlet of the valve and the pressure chamber 105; the floating piston assembly is arranged on the flat pressure pipeline 122, one end of the floating piston assembly is communicated with the inlet of the valve, and the other end, opposite to the floating piston assembly, of the floating piston assembly is communicated with the pressure cavity 105; the filling nozzle 123 is mounted on the flat pressure line 122, and the filling nozzle 123 is located on a side of the flat pressure line 122 communicating with the pressure chamber 105, the filling nozzle 123 being configured to fill the pressure chamber 105 with fluid. By injecting fluid into the pressure chamber 105, when the pressure in the pressure chamber 105 increases, the valve core 101 is forced to move toward the inlet end of the valve body 102, thereby facilitating the opening of the valve.

In one embodiment, the equalization valve 124 is mounted on the surge line, and the equalization valve 124 is located on the side of the surge line that communicates with the inlet of the valve. The fluid injected into the pressure cavity 105 is hydraulic oil, and the filling nozzle 123 is an oil filling nozzle with a one-way liquid inlet function; when the pressure at the inlet of the valve is too high and the valve is closed for a long time, the friction force between the valve core 101 and the valve body 102 is too high, and the switch mechanism cannot drive the valve core 101 to rotate, oil is injected into the pressure cavity 105 through the filling nozzle 123, so that the valve core 101 is separated from the valve body 102, and the valve core 101 is convenient to rotate. The floating piston assembly comprises a piston cylinder in which a piston is moved and a piston disposed in the piston cylinder, pressure between the pressure chamber 105 and the inlet end of the valve being balanced by a balancing valve 124 and the floating piston assembly. Under normal operation of the valve, the balancing valve 124 is in a normally open state.

Referring to fig. 8, in some embodiments, the outer surface of the valve core 101 has a sealing layer 125, the sealing layer 125 is fixed on the outer surface of the valve core 101, and the material of the sealing layer 125 may be nylon, rubber, or the like. The valve may be used as a valve for a water line when the sealing layer 125 is provided. In one embodiment, the flow nozzle 126 is installed on the first through hole 103 of the valve core 101, and a radial end surface of the flow nozzle 126 does not protrude out of the sealing layer 125, so that the flow nozzle 126 ensures the stability of the fixation of the sealing layer 125 on the valve core 101.

In some other embodiments, when seal layer 125 is not provided, the fluid is a liquid, which is an oil. In other embodiments, the fluid is not limited to a liquid, but may be a gas, a mixture of gas and liquid, or the like.

In some embodiments, the valve core 101 is in a circular truncated cone shape, and the shape of the accommodating cavity 106 is adapted to the shape of the valve core 101, which is beneficial to ensure the sealing performance.

Referring to FIG. 10, in one or more embodiments, a liquid supply system is also provided that includes a valve as provided in any of the embodiments described above.

In some embodiments, the liquid supply system further comprises a liquid supply pipe 207 and a foreign matter removing mechanism, the liquid supply pipe 207 is provided with the discharge port 200, the foreign matter removing mechanism is arranged at the inlet end of the valve, the foreign matter removing mechanism comprises a valve plate 201, an elastic piece and a support seat 203, the elastic piece is arranged between the support seat 203 and the valve plate 201, and the valve plate 201 is configured to move relative to the support seat 203 to overcome the elastic force of the elastic piece so as to open the discharge port 200. In one embodiment, the discharge port 200 is tapered; the elastic element is a spring 202, and the supporting seat 203 can be in a herringbone shape; when no fluid is introduced into the valve or when the pressure at the inlet end of the valve is less than the sum of the external pressure and the elastic force of the spring 202, the valve plate 201 is sprung by the elastic member, and the discharge port 200 is opened.

In some embodiments, the liquid supply system further comprises a pressure storage mechanism comprising a pressure storage chamber 204 and a one-way valve plate 201 mounted in the pressure storage chamber 204; a branch pipe 206 is connected to one side wall of the pressure storage cavity 204, the upper part of the one-way valve plate 201 of the pressure storage mechanism is used for storing gas, when the valve is closed, water enters the pressure storage mechanism due to the action of a water hammer, and the one-way valve plate 201 moves upwards, so that the gas is compressed.

In at least one embodiment, the valve and the liquid supply system provided by the present disclosure use the barrel-shaped valve core 101 to change the direction of the fluid, so that the fluid flows into the valve cavity along the radial direction, and the valve is opened and closed by the shearing force, the force of the fluid on the valve core 101 is introduced into the pressure chamber 105 through the pressure equalizing pipe to realize the pressure equalizing, so that the valve core 101 is not or bears the pressure of the very small inlet end of the valve, the valve is durable for a long time, and can be freely opened and closed by manpower widely used for urban water supply and industrial oil gas, the rotation angle of the valve core 101 corresponds to the opening and closing of the valve, and when the valve is used for supplying air, a plurality of small holes can be additionally arranged on the side wall of the valve body 102 corresponding to the valve core 101 for vertical arrangement and overflowing, so that the valve can be opened and closed for a set number of times when the valve core 101 rotates 360 degrees.

Finally, it should be noted that: the above embodiments are only used for illustrating the technical solutions of the present disclosure, and not for limiting the same; while the present disclosure has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art will understand that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present disclosure.

Claims (10)

1. A valve, comprising:

a main body part including a valve core and a valve body, a pressure chamber is provided between the valve core and the valve body, the valve core has a first through hole, the valve body has a second through hole, and the valve core is configured to rotate relative to the valve body so as to connect or disconnect the first through hole and the second through hole;

a switch mechanism configured to drive rotation of the spool;

a compensation adjustment mechanism configured to adjust a spacing between the valve spool and the valve body; and

an anti-lock mechanism configured to adjust a pressure between an inlet of the valve and the pressure chamber.

2. The valve according to claim 1, wherein the valve body has a receiving chamber, the second through hole opens on a wall of the receiving chamber, the valve element is disposed in the receiving chamber, the valve element has a fluid chamber, and the first through hole opens on a wall of the fluid chamber; the pressure cavity is formed between the outer bottom surface of the valve core and the bottom of the accommodating cavity; the valve core is configured to rotate around an axis of the valve core relative to the valve body, so that fluid flows through the first through hole and the second through hole along the radial direction of the valve core.

3. The valve according to claim 1 or 2, wherein the switching mechanism comprises a gear transmission mechanism comprising a first bevel gear provided on an outer bottom surface of the valve spool, and a second bevel gear engaged with the first bevel gear.

4. The valve of claim 2, wherein the compensation adjustment mechanism comprises a thrust block and a sliding block, one face of the thrust block abuts one face of the sliding block, and the sliding block is configured to move along a radial direction of the valve core so as to push the valve core to move along an axial direction of the valve core through the thrust block; the other opposite surface of the thrust block is matched with the outer bottom surface of the valve core.

5. The valve of claim 4, wherein the opposite side of the thrust block has raised structures and recessed structures arranged alternately around a circumference, and the outer bottom surface of the valve element has raised structures and recessed structures arranged alternately around a circumference; the convex structure and the concave structure between the other surface opposite to the thrust block and the outer bottom surface of the valve core are configured to enable the valve core to reciprocate in the axial direction of the valve core when the valve core rotates around the axis of the valve core.

6. A valve as claimed in claim 1 or 2, wherein the anti-lock mechanism comprises:

a pressure equalizing line configured to be connected between an inlet of the valve and the pressure chamber;

the floating piston assembly is arranged on the pressure equalizing pipeline, one end of the floating piston assembly is communicated with the inlet of the valve, and the other end, opposite to the floating piston assembly, of the floating piston assembly is communicated with the pressure cavity; and

the filling nozzle is arranged on the flat pressure pipeline and located on one side of the flat pressure pipeline communicated with the pressure cavity, and the filling nozzle is configured to inject fluid into the pressure cavity.

7. The valve according to claim 1 or 2, wherein the number of the first through holes is plural, the number of the second through holes is plural, the plural first through holes are configured to form a plurality of first hole groups, and the plural second through holes are configured to form a plurality of second hole groups; the first hole groups and the second hole groups are arranged in a one-to-one correspondence mode.

8. A valve according to claim 1 or claim 2, wherein the outer surface of the valve element has a sealing layer.

9. A liquid supply system comprising a valve as claimed in any one of claims 1 to 8.

10. The liquid supply system of claim 9, further comprising a liquid supply conduit having an exhaust port and a foreign object removal mechanism disposed at the exhaust port, the foreign object removal mechanism comprising a valve plate, an elastic member, and a support seat, the elastic member being located between the support seat and the valve plate, the valve plate being configured to move relative to the support seat against an elastic force of the elastic member to open the exhaust port.

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