CN114962674A - Valve gate - Google Patents

Valve gate Download PDF

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Publication number
CN114962674A
CN114962674A CN202110222160.0A CN202110222160A CN114962674A CN 114962674 A CN114962674 A CN 114962674A CN 202110222160 A CN202110222160 A CN 202110222160A CN 114962674 A CN114962674 A CN 114962674A
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CN
China
Prior art keywords
valve
valve plate
plate
seat
hole
Prior art date
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Pending
Application number
CN202110222160.0A
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Chinese (zh)
Inventor
王键
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Chongqing Xinshun Shengda Technology Co ltd
Original Assignee
Chongqing Xinshun Shengda Technology Co ltd
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Publication date
Application filed by Chongqing Xinshun Shengda Technology Co ltd filed Critical Chongqing Xinshun Shengda Technology Co ltd
Priority to CN202110222160.0A priority Critical patent/CN114962674A/en
Publication of CN114962674A publication Critical patent/CN114962674A/en
Pending legal-status Critical Current

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
    • F16K3/02—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor
    • F16K3/04—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor with pivoted closure members
    • F16K3/06—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor with pivoted closure members in the form of closure plates arranged between supply and discharge passages
    • F16K3/08—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor with pivoted closure members in the form of closure plates arranged between supply and discharge passages with circular plates rotatable around their centres
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K27/00—Construction of housing; Use of materials therefor
    • F16K27/04—Construction of housing; Use of materials therefor of sliding valves
    • F16K27/044—Construction of housing; Use of materials therefor of sliding valves slide valves with flat obturating members
    • F16K27/045—Construction of housing; Use of materials therefor of sliding valves slide valves with flat obturating members with pivotal obturating members
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
    • F16K3/30—Details
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/44—Mechanical actuating means
    • F16K31/53—Mechanical actuating means with toothed gearing
    • F16K31/535—Mechanical actuating means with toothed gearing for rotating valves

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mechanically-Actuated Valves (AREA)

Abstract

The invention discloses a valve, which comprises a valve body, an actuating mechanism arranged on the valve body, a valve seat, a valve plate and a medium channel which are arranged in the valve body, wherein through holes are respectively arranged on the valve seat and the valve plate; when the first via hole and the second via hole are completely staggered, the sealing surface of the valve plate and the end surface of the valve seat are in a sealing state. The valve provided by the invention has the advantages of no problem of abrasion of the sealing surface of the valve plate, good flexibility, small operation difficulty and long service life, is particularly suitable for high-pressure fluid pipelines and unclean fluid pipelines, and is convenient to maintain and use.

Description

Valve gate
Technical Field
The invention relates to a device for blocking or adjusting fluid in a pipe, in particular to a valve.
Background
In the prior art: document CN111255904A discloses a flow-limiting valve with an adjustable cross section, wherein a rhombic block is installed inside a gate valve, the position of the rhombic block is changed when a valve rod is rotated, a channel which is convenient for fluid to pass through is formed in the middle of the valve rod, and the flow of the fluid flowing through the gate valve is controlled when the size of an inner aperture is changed, so that the purpose of limiting the flow is achieved; document CN201145055Y discloses a rotary plate type wear-resistant valve, in which a left valve body is fixedly connected with a right valve body, a pinion is installed in the left valve body, the pinion is engaged with teeth on a rotary valve plate, an output shaft of a power input device passes through the right valve body and the pinion and is installed in a shaft hole on an end face of a step in the left valve body, a pressure plate is installed in the left valve body, a fixed valve plate is installed in the right valve body, a central shaft passes through the pressure plate, the rotary valve plate and the fixed valve plate and is in threaded connection with a nut, a third sealing ring and a second sliding bearing are installed between the central shaft and a central hole of the fixed valve plate, and a rolling bearing is installed on the central shaft.
As mentioned above, the valves all adopt a mode of driving the valve plate to rotate to realize the opening and closing of the medium channel, and have the following problems in the use process: (1) the sealing surface of the valve plate is easy to wear, and the service life of the valve needs to be further prolonged; (2) when being applied to high-pressure fluid pipeline, the flexibility of valve is relatively poor, and the switching operation degree of difficulty is big, and the valve plate is difficult to reset.
Disclosure of Invention
The invention aims to provide a valve which is used for solving the technical problems in the background technology.
In order to achieve the above object, the present invention adopts the following technical solutions.
A valve comprises a valve body, an actuating mechanism arranged on the valve body, a valve seat, a valve plate and a medium channel arranged in the valve body, wherein through holes are respectively formed in the valve seat and the valve plate, the valve plate is driven to rotate by the actuating mechanism until a first through hole on the valve seat is superposed with a second through hole on the valve plate (also can be understood as that the first through hole is directly communicated with the second through hole), the valve is opened, and the valve is driven to rotate by the actuating mechanism until the first through hole on the valve seat is completely staggered with the second through hole on the valve plate; the method is characterized in that: when the first via hole and the second via hole are completely staggered, the sealing surface of the valve plate and the end surface of the valve seat are in a sealing state.
Preferably, the valve plate is axially moved in a spiral moving mode.
In order to improve the stability of the valve, threads which are matched with each other are respectively arranged on the annular wall of the valve plate and the inner wall of the valve body so as to realize the threaded matching connection of the annular wall of the valve plate and the inner wall of the valve body; or a rib plate is fixedly arranged in the medium channel, a screw rod is arranged on the valve plate, one end of the screw rod is connected with the rib plate, the other end of the screw rod is connected with the valve plate, and the screw rod is matched and connected with the rib plate or the screw hole in the valve plate.
In order to improve the flexibility of the valve and further reduce the difficulty of opening and closing operation of the valve, a cylindrical cam screw mechanism is adopted to drive the valve plate to axially reciprocate; the cylindrical cam screw mechanism comprises a spiral groove arranged on the annular wall of the valve plate and a boss fixedly arranged on the inner wall of the valve body and capable of being inserted into the spiral groove; or: the cylindrical cam screw mechanism comprises a spiral rib arranged on the annular wall of the valve plate and a limiting piece fixedly arranged on the inner wall of the valve body and capable of clamping the spiral rib.
Furthermore, the spiral groove is composed of four sections of curved grooves arranged around the valve plate, the peak parts of all the curved grooves are positioned on the same circumference, and the valley parts of all the curved grooves are also positioned on the same circumference.
Preferably, the valve plate adopts a first valve plate, or adopts a first valve plate and a second valve plate which are arranged on two sides of the valve seat.
For convenient maintenance, the valve body is composed of two valve split bodies which are fixedly connected through a bolt assembly, the valve seat is clamped between the two valve split bodies, and a sealing gasket is arranged at the connecting part of the valve split bodies and the valve seat.
Further, the inner wall of the valve body is provided with a limiting table, and the valve plate can only reciprocate between the limiting table and the valve seat.
Preferably, the actuating mechanism comprises a shaft which is radially arranged, the upper end of the shaft is connected with the handle, the lower end of the shaft is connected with the bevel gear, the bevel gear is matched with the helical tooth part on the valve plate, the bevel gear drives the valve plate to do rotary motion and axial movement when rotating, and the bevel gear is always meshed with the helical tooth part in the axial movement process of the valve plate.
As the preferred scheme, actuating mechanism includes the axle, and handle, other end connection gear are connected to axle one end, and the tooth portion phase-match on the gear and the valve plate drives the valve plate and makes rotary motion when the gear is rotatory, and in the valve plate axial displacement in-process, the gear meshes with the tooth portion mutually all the time.
In order to reduce the size of the valve, the valve plate and the valve seat are both in a conical structure.
The valve provided by the invention has the following beneficial effects:
(1) when the valve is opened in the use process, the valve plate is separated from the valve seat at the same time when rotating, so that the problem of friction between the sealing surface of the valve plate and the contact surface of the valve seat is ingeniously avoided, the problem of scouring of a medium on the sealing surface is avoided, and the problem of abrasion of the sealing surface of the valve plate is avoided;
(2) the valve has good flexibility, is easy to open and close, has small operation difficulty, can realize the opening and closing of the valve through unidirectional rotation, and is more convenient to operate;
(3) when the valve is closed, the valve plate can be well reset, and the valve switch has good reducibility;
(4) the valve is not easy to block, has long service life and is particularly suitable for high-pressure fluid pipelines and unclean fluid pipelines;
(5) the valve is easy to disassemble and assemble, and is convenient to maintain and use.
Drawings
FIG. 1 is a schematic view of the structure of a valve (valve-open state) in example 1;
FIG. 2 is a schematic view showing the structure of a valve (valve-closed state) in example 1;
FIG. 3 is a schematic sectional view of a valve plate in embodiment 1;
FIG. 4 is a side schematic view of a first valve plate in the embodiment 1;
FIG. 5 is a schematic side view of a second valve plate in embodiment 1;
FIG. 6 is a schematic side view of the valve seat of embodiment 1;
FIG. 7 is a schematic view showing the structure of a valve (valve-open state) in example 2;
FIG. 8 is a schematic view showing the structure of a valve (valve-open state) in example 3;
FIG. 9 is a schematic view showing the structure of a valve (valve-open state) in example 4;
FIG. 10 is a schematic view of a cylindrical cam screw mechanism in embodiment 4;
FIG. 11 is a schematic view showing the structure of a valve (valve-open state) in example 5;
FIG. 12 is a schematic view showing the structure of a valve (valve-closed state) in example 5;
FIG. 13 is a first schematic view showing the fitting state of the valve body and the valve plate in embodiment 5;
FIG. 14 is a second schematic view showing a state of fitting between the valve body and the valve plate in embodiment 5;
FIG. 15 is a schematic view showing the structure of a valve (valve-open state) in example 6;
in the figure, the direction indicated by the arrow indicates the medium flow direction.
Detailed Description
The present invention is further described with reference to the accompanying drawings, but the following embodiments are only used to help understanding the principle of the present invention and the core idea thereof, and do not limit the scope of the present invention. It should be noted that modifications to the invention as described herein, which do not depart from the principles of the invention, are intended to be within the scope of the claims which follow.
Example 1
Referring to fig. 1 to 6, a valve includes a valve body 1, an actuator disposed on the valve body 1, a valve seat 7, a valve plate and a medium channel 11 disposed in the valve body 1, through holes being disposed on the valve seat 7 and the valve plate, respectively, the valve is opened when the actuator drives the valve plate to rotate until a first through hole 16 on the valve seat 7 overlaps a second through hole 15 on the valve plate, and the valve is closed when the actuator drives the valve plate to rotate until the first through hole 16 on the valve seat 7 completely deviates from the second through hole 15 on the valve plate; when the actuating mechanism drives the valve plate to rotate, the valve plate is axially far away from or close to the valve seat 7, when the first via hole 16 is overlapped with the second via hole 15, a gap 9 is formed between the sealing surface of the valve plate and the end surface of the valve seat 7, and when the first via hole 16 is completely staggered with the second via hole 15, the sealing surface of the valve plate and the end surface of the valve seat 7 are in a sealing state. A limit stop 19 is provided on the inner wall of the valve body 1 so that the valve plate can only reciprocate between the limit stop 19 and the valve seat 7.
In this embodiment, the valve plate includes a first valve plate 3 and a second valve plate 10 disposed on two sides of the valve seat 7, and the first valve plate 3 and the second valve plate 10 are disposed opposite to each other. The first valve plate 3 is provided with a sealing surface 8 and four through holes 15, the sealing surface 8 is used for being matched with the sealing surface on the valve seat 7, and the through holes 15 are matched with the through holes 16 on the valve seat 7; the valve plate ring wall is also provided with a helical tooth part 12, and the helical tooth part 12 is arranged close to the sealing surface 8; the second valve plate 10 also has four through holes three 25, and the through holes three 25 are matched with the through holes one 16 on the valve seat 7. The first valve plate 3 and the first through hole 16 thereof are mainly used for opening and closing the regulating valve, and the second valve plate 10 and the third through hole 25 thereof are used for regulating the flow of the valve.
In this embodiment, the mode of spiral removal valve plate is adopted to realize valve plate axial displacement. Specifically, the valve plate annular wall and the inner wall of the valve body 1 are respectively provided with mutually matched threads so as to realize the threaded matching connection of the valve plate annular wall and the inner wall of the valve body 1.
In this embodiment, the valve body 1 is formed by two valve bodies which are fixedly connected by the bolt assembly 2, the valve seat 7 is clamped between the two valve bodies, and the sealing gasket 6 is arranged at the connecting position of the valve bodies and the valve seat 7.
In the embodiment, the actuating mechanism comprises a shaft 4 which is radially arranged, the upper end of the shaft 4 is connected with the handle, the lower end of the shaft 4 is connected with a bevel gear 5, the bevel gear 5 is matched with a helical tooth part 12 on the valve plate, the valve plate is driven to rotate when the bevel gear 5 rotates, and the bevel gear 5 is always meshed with the helical tooth part 12 in the axial movement process of the valve plate. The person skilled in the art should meet the requirement that the teeth of the bevel gear 5 do not disengage from the tooth grooves of the helical tooth portion 12 after the valve plate moves axially by the width of the gap 9 when calculating the gap when the bevel gear 5 meshes with the helical tooth portion 12.
The working principle is as follows: when a handle on an execution mechanism where the first valve plate 3 is located is operated (rotated) in a forward direction, the shaft 4 and the bevel gear 5 synchronously rotate to further drive the first valve plate 3 to rotate forwards, the first valve plate 3 moves forwards along threads on the annular wall of the first valve plate 3 in the forward direction, so that the sealing surface 8 of the first valve plate 3 is separated from the sealing surface of the valve seat 7, until the first via hole 16 on the valve seat 7 is overlapped with the second via hole 15 on the valve plate (namely the first via hole 16 faces the second via hole 15 in the axial direction so that the two are communicated), the valve is opened, and at the moment, a gap 9 is formed between the sealing surface of the first valve plate 3 and the end surface of the valve seat 7, as shown in fig. 1, so that a medium can flow through the medium channel 11, the first via hole 16 and the second via hole 15; when a handle on an execution mechanism where the first valve plate 3 is located is operated (rotated) in a reverse direction, the shaft 4 and the bevel gear 5 synchronously rotate to further drive the first valve plate 3 to reversely rotate, the first valve plate 3 retreats along the threads of the annular wall of the first valve plate 3 when reversely rotating, so that the sealing surface 8 of the first valve plate 3 gradually approaches the sealing surface of the valve seat 7, until the valve is closed when the first via hole 16 on the valve seat 7 and the second via hole 15 on the valve plate are completely staggered (namely the first via hole 16 and the second via hole 15 are completely staggered in the axial direction), at the moment, the sealing surface of the first valve plate 3 completely fits the end surface of the valve seat 7 to realize sealing, and as shown in fig. 2, the medium can be blocked; when the flow needs to be adjusted, on one hand, the overlapping degree of the first through hole 16 and the second through hole 15 can be adjusted by adjusting the rotation angle of the first valve plate 3, and on the other hand, the overlapping degree of the third through hole 25 and the first through hole 16 can be adjusted by adjusting the rotation angle of the second valve plate 10. In the use process, when the valve is closed, the state of the second valve plate 10 can be any, but the first via hole 16 and the second via hole 15 need to be completely staggered; when the valve is opened, via three 25, via two 15 and via one 16 must be communicated simultaneously.
Example 2
A valve, as shown in fig. 7 with reference to embodiment 1, the main difference from embodiment 1 is: the connection mode of the first valve plate 3 and the valve body 1 is different, specifically, a rib plate 18 (an X-shaped rib plate or a cross rib plate can be adopted) is fixedly arranged in the medium channel 11, a screw 17 is arranged on the first valve plate 3, one end of the screw 17 is connected with the rib plate 18, the other end of the screw 17 is connected with the first valve plate 3, and the screw 17 is connected with the rib plate 18 or a screw hole on the first valve plate 3 in a matching manner; the annular wall of the first valve plate 3 keeps a gap with the inner wall of the valve body 1. When the screw 17 is matched and connected with the screw hole in the rib plate 18, the screw 17 and the valve plate I3 need to be fixedly connected, and under the condition, the screw 17 and the valve plate I3 can integrally rotate and axially move; when the screw 17 is connected with the screw hole on the first valve plate 3 in a matching manner, the screw 17 and the rib plate 18 need to be fixedly connected, and in this case, the first valve plate 3 can integrally rotate and axially move.
Example 3
A valve, as shown in fig. 8 and referred to in example 1, the main difference from example 1 is: the valve plate adopts a first valve plate 3.
Example 4
A valve, as shown in fig. 9 and 10 with reference to embodiment 1, the main difference from embodiment 1 is that: the first valve plate 3 and the valve body 1 are connected in different modes, and specifically, a cylindrical cam screw mechanism 20 is adopted to drive the valve plate to axially reciprocate; the cylindrical cam screw mechanism 20 includes a spiral rib 22 disposed on the annular wall of the valve plate, and a position limiting member 20 fixedly disposed on the inner wall of the valve body 1 and capable of clamping the spiral rib 22.
When a handle on an execution mechanism where the first valve plate 3 is located is operated (rotated) in a forward direction, the shaft 4 and the bevel gear 5 synchronously rotate, so that the first valve plate 3 is driven to rotate forwards and move axially, the spiral rib 22 also rotates when the first valve plate 3 rotates forwards, different positions of the spiral rib 22 are always in contact with the limiting piece 20, the sealing surface 8 of the first valve plate 3 is separated from the sealing surface of the valve seat 7, the valve is opened until the first via hole 16 on the valve seat 7 is overlapped with the second via hole 15 on the valve plate, and a gap 9 is formed between the sealing surface of the first valve plate 3 and the end surface of the valve seat 7, so that a medium can flow through the medium channel 11, the first via hole 16 and the second via hole 15;
when the handle on the actuating mechanism where the first valve plate 3 is located is operated (rotated) in a reverse direction, the shaft 4 and the bevel gear 5 synchronously rotate, the first valve plate 3 is driven to rotate reversely, the spiral rib 22 also rotates along with the first valve plate 3 when the first valve plate 3 rotates reversely, different positions of the spiral rib 22 are always in contact with the limiting part 20, the first valve plate 3 rotates reversely and retreats axially, the sealing surface 8 of the first valve plate 3 is enabled to be gradually close to the sealing surface of the valve seat 7 until the first via hole 16 in the valve seat 7 and the second via hole 15 in the valve plate are completely staggered, the valve is closed, the sealing surface of the first valve plate 3 completely fits the end surface of the valve seat 7 to realize sealing, and therefore media can be blocked.
Example 5
Referring to fig. 11 to 14, a valve includes a valve body 1, an actuator disposed on the valve body 1, a valve seat 7, a valve plate and a medium channel 11 disposed in the valve body 1, through holes being disposed on the valve seat 7 and the valve plate, respectively, the valve is opened when the actuator drives the valve plate to rotate until a first through hole 16 on the valve seat 7 overlaps a second through hole 15 on the valve plate, and the valve is closed when the actuator drives the valve plate to rotate until the first through hole 16 on the valve seat 7 completely misaligns the second through hole 15 on the valve plate; when the actuating mechanism drives the valve plate to rotate, the valve plate is axially far away from or close to the valve seat 7, when the first via hole 16 is overlapped with the second via hole 15, a gap 9 is formed between the sealing surface of the valve plate and the end surface of the valve seat 7, and when the first via hole 16 is completely staggered with the second via hole 15, the sealing surface of the valve plate and the end surface of the valve seat 7 are in a sealing state. A limit stop 19 is provided on the inner wall of the valve body 1 so that the valve plate can only reciprocate between the limit stop 19 and the valve seat 7.
In this embodiment, the valve plate includes a first valve plate 3 and a second valve plate 10 disposed on two sides of the valve seat 7, and the first valve plate 3 and the second valve plate 10 are disposed opposite to each other. The first valve plate 3 is provided with a sealing surface 8 and four through holes 15, the sealing surface 8 is used for being matched with the sealing surface on the valve seat 7, and the through holes 15 are matched with the through holes 16 on the valve seat 7; the valve plate ring wall is also provided with a tooth part which is meshed with a driving wheel (gear 24) of the actuating mechanism; the second valve plate 10 also has four through holes three 25, and the through holes three 25 are matched with the through holes one 16 on the valve seat 7. The first valve plate 3 and the first through hole 16 thereof are mainly used for opening and closing the regulating valve, and the second valve plate 10 and the third through hole 25 thereof are used for regulating the flow of the valve.
In this embodiment, the cylindrical cam screw mechanism 20 is adopted to drive the valve plate to axially reciprocate, as shown in fig. 13 and 14, the cylindrical cam screw mechanism 20 includes a spiral groove 22 disposed on the annular wall of the first valve plate 3, and a boss 21 fixedly disposed on the inner wall of the valve body 1 and capable of being inserted into the spiral groove 22. The spiral groove 22 is composed of four curved grooves arranged around the valve plate, and the peak portions and the valley portions of all the curved grooves are located on the same circumference.
In this embodiment, the valve body 1 is composed of two valve components which are fixedly connected through the bolt assembly 2, the valve seat 7 is clamped between the two valve components, and the sealing gasket 6 is arranged at the connecting position of the valve components and the valve seat 7.
In this embodiment, the actuator includes a shaft 4 disposed axially, one end of the shaft 4 is connected to the handle, the other end is connected to a gear 24, the gear 24 is matched with the teeth on the valve plate, the valve plate is driven to rotate when the gear 24 rotates, and the gear 24 is always engaged with the teeth on the valve plate during the axial movement of the valve plate.
The working principle is as follows: (1) in an initial state, when a handle on an actuating mechanism where the first valve plate 3 is located is rotated, the shaft 4 and the gear 24 synchronously rotate to further drive the first valve plate 3 to rotate, the first valve plate 3 moves along threads of the annular wall of the first valve plate 3 in a forward rotation mode to enable the sealing surface 8 of the first valve plate 3 to be separated from the sealing surface of the valve seat 7 until the first through hole 16 in the valve seat 7 and the second through hole 15 in the valve plate are overlapped (namely the first through hole 16 axially faces the second through hole 15 to enable the first through hole and the second through hole to be communicated), a gap 9 is reserved between the sealing surface of the first valve plate 3 and the end surface of the valve seat 7 at the moment, as shown in a figure 11, a medium can flow through the medium channel 11, the first through hole 16 and the second through hole 15, and in the process, the first valve plate 3 just rotates 1/8 circles; (2) when the handle on the actuating mechanism where the first valve plate 3 is located is continuously rotated, the shaft 4 and the gear 24 synchronously rotate, at this time, under the coordination of the cylindrical cam screw mechanism 20, the first valve plate 3 retreats along the thread of the annular wall thereof when rotating, so that the sealing surface 8 of the first valve plate 3 gradually approaches the sealing surface of the valve seat 7 until the valve is closed when the first via hole 16 on the valve seat 7 is completely staggered with the second via hole 15 on the valve plate (i.e. the first via hole 16 is completely staggered with the second via hole 15 in the axial direction), at this time, the sealing surface of the first valve plate 3 completely abuts against the end surface of the valve seat 7 to realize sealing, as shown in fig. 12, so that media can be blocked, and in the process, the first valve plate 3 just rotates 1/8 circles; the processes (1) and (2) are just one period of opening and closing the valve, and the processes (1) and (2) can be repeated by continuously rotating the handle on the actuating mechanism. When the flow needs to be adjusted, on one hand, the overlapping degree of the first through hole 16 and the second through hole 15 can be adjusted by adjusting the rotation angle of the first valve plate 3, and on the other hand, the overlapping degree of the third through hole 25 and the first through hole 16 can be adjusted by adjusting the rotation angle of the second valve plate 10. In the use process, when the valve is closed, the state of the second valve plate 10 can be any, but the first via hole 16 and the second via hole 15 need to be completely staggered; when the valve is opened, via three 25, via two 15 and via one 16 must be communicated simultaneously.
In this embodiment, the actuator may also adopt other gear transmission mechanisms as long as the actuator can drive the valve plate to rotate.
Example 6
A valve, as shown in fig. 15 and referred to in example 1, the main difference from example 1 is that: valve plate and disk seat 7 all are the toper structure, and the terminal surface of valve plate is the inclined plane, under the circumstances of equal flow, adopts structure like this to be favorable to reducing the volume of valve.

Claims (10)

1. A valve comprises a valve body (1), an actuating mechanism arranged on the valve body (1), a valve seat (7), a valve plate and a medium channel (11) which are arranged in the valve body (1), wherein through holes are respectively formed in the valve seat (7) and the valve plate, the valve is opened when the actuating mechanism drives the valve plate to rotate until a first through hole (16) in the valve seat (7) is overlapped with a second through hole (15) in the valve plate, and the valve is closed when the actuating mechanism drives the valve plate to rotate until the first through hole (16) in the valve seat (7) is completely staggered with the second through hole (15) in the valve plate; the method is characterized in that: when the actuating mechanism drives the valve plate to rotate, the valve plate is axially far away from or close to the valve seat (7), when the first via hole (16) and the second via hole (15) are overlapped, a gap (9) is formed between the sealing surface of the valve plate and the end surface of the valve seat (7), and when the first via hole (16) and the second via hole (15) are completely staggered, the sealing surface of the valve plate and the end surface of the valve seat (7) are in a sealing state.
2. The valve of claim 1, wherein: the axial movement of the valve plate is realized by adopting a mode of spirally moving the valve plate; threads which are matched with each other are respectively arranged on the annular wall of the valve plate and the inner wall of the valve body (1) so as to realize the threaded matching connection of the annular wall of the valve plate and the inner wall of the valve body (1); or a rib plate (18) is fixedly arranged in the medium channel (11), a screw rod (17) is arranged on the valve plate, one end of the screw rod (17) is connected with the rib plate (18), the other end of the screw rod (17) is connected with the valve plate, and the screw rod (17) is matched and connected with the rib plate (18) or a screw hole in the valve plate.
3. The valve of claim 1, wherein: a cylindrical cam screw mechanism (20) is adopted to drive the valve plate to axially reciprocate; the cylindrical cam screw mechanism (20) comprises a spiral groove (22) arranged on the annular wall of the valve plate and a boss (21) which is fixedly arranged on the inner wall of the valve body (1) and can be inserted into the spiral groove (22); or: the cylindrical cam screw mechanism (20) comprises a spiral rib (22) arranged on the annular wall of the valve plate and a limiting piece (20) which is fixedly arranged on the inner wall of the valve body (1) and can clamp the spiral rib (22).
4. The valve of claim 3, wherein: the spiral groove (22) is composed of four curved grooves arranged around the valve plate, and the peak parts of all the curved grooves are positioned on the same circumference, and the valley parts are also positioned on the same circumference.
5. The valve according to any one of claims 1 to 5, wherein: the valve plate adopts a first valve plate (3), or adopts a first valve plate (3) and a second valve plate (10) which are arranged at two sides of a valve seat (7).
6. The valve of claim 5, wherein: the valve body (1) is composed of two valve split bodies which are fixedly connected through a bolt assembly, the valve seat (7) is clamped between the two valve split bodies, and a sealing gasket (6) is arranged at the connecting part of the valve split bodies and the valve seat (7).
7. The valve of claim 6, wherein: the inner wall of the valve body (1) is provided with a limiting table (19), and the valve plate can only reciprocate between the limiting table (19) and the valve seat (7).
8. The valve of claim 7, wherein: the actuating mechanism comprises a shaft (4) which is arranged in the radial direction, the upper end of the shaft (4) is connected with a handle, the lower end of the shaft (4) is connected with a bevel gear (5), the bevel gear (5) is matched with an inclined tooth part (12) on the valve plate, the bevel gear (5) drives the valve plate to do rotary motion and axial movement when rotating, and in the axial movement process of the valve plate, the bevel gear (5) is always meshed with the inclined tooth part (12).
9. The valve of claim 4, wherein: the actuating mechanism comprises a shaft (4), one end of the shaft (4) is connected with the handle, the other end of the shaft is connected with the gear, the gear is matched with the tooth part on the valve plate, the valve plate is driven to rotate when the gear rotates, and the gear is always meshed with the tooth part in the axial movement process of the valve plate.
10. The valve of claim 8, wherein: the valve plate and the valve seat (7) are both in a conical structure.
CN202110222160.0A 2021-02-28 2021-02-28 Valve gate Pending CN114962674A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202110222160.0A CN114962674A (en) 2021-02-28 2021-02-28 Valve gate

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110222160.0A CN114962674A (en) 2021-02-28 2021-02-28 Valve gate

Publications (1)

Publication Number Publication Date
CN114962674A true CN114962674A (en) 2022-08-30

Family

ID=82970971

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202110222160.0A Pending CN114962674A (en) 2021-02-28 2021-02-28 Valve gate

Country Status (1)

Country Link
CN (1) CN114962674A (en)

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