CN113864470B - Gate valve electro-hydraulic driving system with emergency valve closing function and gate valve - Google Patents

Gate valve electro-hydraulic driving system with emergency valve closing function and gate valve Download PDF

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Publication number
CN113864470B
CN113864470B CN202111112262.3A CN202111112262A CN113864470B CN 113864470 B CN113864470 B CN 113864470B CN 202111112262 A CN202111112262 A CN 202111112262A CN 113864470 B CN113864470 B CN 113864470B
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rod
fixedly connected
fixed seat
base
auxiliary
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CN113864470A (en
Inventor
石业超
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Haimen Beilestone Machinery Co ltd
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Haimen Beilestone Machinery Co ltd
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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
    • 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
    • F16K3/314—Forms or constructions of slides; Attachment of the slide to the spindle
    • 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
    • F16K37/00—Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given
    • F16K37/0025—Electrical or magnetic means

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Electrically Driven Valve-Operating Means (AREA)
  • Sliding Valves (AREA)

Abstract

The invention relates to the technical field of gate valves, in particular to a gate valve electrohydraulic driving system with an emergency valve closing function and a gate valve; fluid is transported through the fluid passage inside the base, the fixing base is installed above the base, the switch door is connected to the fixing base through a hinge, the fixing base is opened and closed, the auxiliary component is arranged on the fixing base, the power assembly is arranged on the fixing base and is opened and closed through reciprocating the fluid passage, after the switch door is opened, the power assembly can be manually controlled, the fluid passage is rapidly closed, and then an emergency valve closing function is achieved, and user requirements are met.

Description

Gate valve electro-hydraulic driving system with emergency valve closing function and gate valve
Technical Field
The invention relates to the technical field of gate valves, in particular to a gate valve electro-hydraulic driving system with an emergency valve closing function and a gate valve.
Background
The gate valve has the advantages of simple structure, good sealing performance and the like, and is widely applied to water supply and drainage systems such as oil mines and the like. The common gate valve actuating mechanism on the market is a hand wheel switch.
In the prior art, when the gate valve is in a full-open state, if the valve needs to be closed in case of emergency, the valve can only be closed in a mode of rotating the valve rod, so that the valve closing time is too long, and emergency closing cannot be realized.
Disclosure of Invention
The invention aims to provide a gate valve electro-hydraulic driving system with an emergency valve closing function and a gate valve, and aims to solve the technical problems that in the prior art, when the gate valve is in a fully-open state and needs to be closed in an emergency, the gate valve can only be closed in a mode of rotating a valve rod, so that the valve closing time is too long, and the emergency closing cannot be realized.
In order to achieve the purpose, the gate valve electrohydraulic driving system with the emergency valve closing function comprises a base, a supporting assembly and a power assembly;
the utility model discloses a fluid passage, including base, power component, supporting component, switch door, base, power component, the base is interior to have fluid passage, supporting component includes fixing base, switch door and auxiliary component, the fixing base with the connection can be dismantled to the base, and lie in the top of base, the switch door with the fixing base rotates to be connected, and lies in the fixing base is kept away from one side of base, auxiliary component with fixing base sliding connection, power component with the fixing base rotates to be connected.
The base has fluid passage supplies fluid to pass through, the fixing base is installed the top of base, the switch door makes the fixing base can be opened, auxiliary member is supplementary power component's removal, power component reciprocates, advances fluid passage closes and opens to have emergent function of closing, satisfy user's demand.
The power assembly comprises a driving motor, a rotating screw rod, a moving component and a control component, wherein the driving motor is fixedly connected with the fixed seat and is positioned on one side of the fixed seat, which is far away from the base; the rotating screw rod is fixedly connected with the output end of the driving motor and extends into the fixed seat; the moving component is rotationally connected with the rotating screw rod; the control component is fixedly connected with the fixed seat.
The driving motor is installed above the fixed seat and drives the rotating screw rod to rotate, the rotating screw rod rotates inside the fixed seat and drives the moving component to move up and down, and the control component controls the driving motor to operate.
The moving component comprises a rotating nut, a connecting rod and a valve closing component, and the rotating nut is rotatably connected with the rotating screw rod and is positioned on the outer side of the rotating screw rod; the connecting rod is fixedly connected with the rotating nut and is positioned on the outer side of the rotating nut; the valve closing component is fixedly connected with the connecting rod.
The rotating nut moves up and down along with the rotating screw rod in a forward rotation mode and a reverse rotation mode, the connecting rod is fixed to the rotating nut and moves along with the rotating nut, and the closing valve component moves along with the connecting rod to close and open the fluid channel.
The valve closing component comprises a connecting part, a guide groove body and a valve plate, and the connecting part is fixedly connected with the connecting rod; the guide groove body is fixedly connected with the base and is positioned in the fluid channel; the valve plate is fixedly connected with the connecting part.
The connecting parts are respectively connected with the connecting rod and the valve plate, so that the valve plate moves up and down along with the connecting rod, the fluid channel is opened and closed, and the guide groove body improves the moving stability of the valve plate.
The connecting part comprises a main rod, an auxiliary rod and a fixing feature, wherein the main rod is fixedly connected with the connecting rod and is positioned on one side, far away from the rotating nut, of the connecting rod; one end of the auxiliary rod is connected with the main rod in a sliding mode, and the other end of the auxiliary rod is fixedly connected with the valve plate; the securing feature is slidably connected with the primary shaft.
The main rod is connected with the auxiliary rod through the fixing feature, and the auxiliary rod is connected with the valve body and drives the valve body to move up and down.
The control component comprises an electric cabinet, an energy storage power supply and an alarm component, wherein the electric cabinet is fixedly connected with the fixed seat and is positioned on one side of the fixed seat close to the driving motor; the energy storage power supply is connected with the driving motor and is positioned inside the electric cabinet; the alarm component is arranged on the fixed seat.
The energy storage power supply is arranged in the electric cabinet and provides electric energy for the driving motor and the alarm component.
The alarm component comprises an alarm and a pressure sensor, and the alarm is arranged on the fixed seat; the pressure sensor is disposed on the valve plate.
The pressure sensor is arranged on the valve body, senses the stress of the valve body and transmits the stress to the controller in the electric cabinet, and the controller judges whether a fault occurs according to the signal of the pressure sensor and controls the starting of the alarm.
A gate valve is applied to a gate valve electrohydraulic driving system with an emergency valve closing function.
The gate valve is applied to the gate valve electrohydraulic driving system with the emergency valve closing function.
According to the gate valve electro-hydraulic driving system with the emergency valve closing function and the gate valve, fluid is transported through the fluid channel in the base, the fixed seat is mounted above the base, the switch door is connected to the fixed seat through the hinge to open and close the fixed seat, the auxiliary component is arranged on the fixed seat to assist the movement of the power component, the power component is arranged on the fixed seat, the fluid channel is opened and closed through moving up and down, and after the switch door is opened, the power component can be manually controlled to enable the fluid channel to be quickly closed, so that the gate valve electro-hydraulic driving system with the emergency valve closing function is provided, and the user requirements are met.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a gate valve electrohydraulic driving system with an emergency valve closing function of the invention.
Fig. 2 is a cross-sectional view of the gate valve electro-hydraulic drive system with emergency valve closing function of the present invention.
Fig. 3 is a schematic structural diagram of the switching door of the present invention.
Fig. 4 is a front cross-sectional view of the gate valve electro-hydraulic drive system with emergency valve shut off functionality of the present invention.
Fig. 5 is an enlarged view of fig. 2 a of the present invention.
Fig. 6 is an enlarged view of the invention at B of fig. 4.
1-base, 2-supporting component, 3-power component, 21-fixed seat, 22-switch door, 23-auxiliary component, 30-driving motor, 40-rotating screw rod, 50-moving component, 51-rotating nut, 52-connecting rod, 53-switch valve component, 60-control component, 61-electric control box, 62-energy storage power supply, 63-alarm component, 631-alarm, 632-pressure sensor, 100-gate valve electrohydraulic driving system with emergency valve closing function, 101-fluid channel, 231-slide seat, 232-ball, 233-sealing component, 531-connecting component, 532-guide groove body, 533-valve plate, 5300-plug component, 5301-compression spring, 5302-first rod, 5303-second rod, 5304-connecting spring, 5305-fixing bolt, 5311-main rod, 5312-auxiliary rod, 5313-fixing feature, 5331-plate body, 5332-reinforcing spring and 5333-clamping pin.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative and intended to explain the present invention and should not be construed as limiting the present invention.
In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, and are used merely for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention. Further, in the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
Referring to fig. 1 to 4, the present invention provides a gate valve electrohydraulic actuator system 100 with emergency valve closing function, which includes a base 1, a support assembly 2 and a power assembly 3;
have fluid passage 101 in the base 1, supporting component 2 includes fixing base 21, switch door 22 and auxiliary component 23, fixing base 21 with base 1 can dismantle the connection, and is located the top of base 1, switch door 22 with fixing base 21 rotates to be connected, and is located fixing base 21 keeps away from one side of base 1, auxiliary component 23 with fixing base 21 sliding connection, power component 3 with fixing base 21 rotates to be connected.
In this embodiment, base 1 is inside to have fluid passage 101 for the fluid to pass through, fixing base 21 passes through the bolt fastening in the top of base 1, switch door 22 passes through the hinge connection on fixing base 21, will fixing base 21 opens and closes, auxiliary component 23 sets up on fixing base 21, the supplementary power component 3's removal, power component 3 will through reciprocating fluid passage 101 opens and closes, opens switch door 22, but manual operation power component 3 makes power component 3 closes rapidly fluid passage 101, and then possesses emergent shutdown function, closes more rapidly when emergency, satisfies user's demand.
Further, referring to fig. 1, fig. 2, fig. 4 and fig. 5, the power assembly 3 includes a driving motor 30, a rotating screw 40, a moving member 50 and a control member 60, wherein the driving motor 30 is fixedly connected to the fixing base 21 and is located on a side of the fixing base 21 away from the base 1; the rotating screw 40 is fixedly connected with the output end of the driving motor 30 and extends into the fixed seat 21; the moving member 50 is rotatably connected with the rotary screw 40; the control member 60 is fixedly connected with the fixed seat 21.
Further, referring to fig. 4 and 5, the moving member 50 includes a rotating nut 51, a connecting rod 52 and a valve closing member 53, the rotating nut 51 is rotatably connected to the rotating screw 40 and is located outside the rotating screw 40; the connecting rod 52 is fixedly connected with the rotating nut 51 and is positioned outside the rotating nut 51; the valve closing part 53 is fixedly connected with the connecting rod 52.
Further, referring to fig. 2, 4 and 5, the valve closing component 53 includes a connecting part 531, a guide groove 532 and a valve plate 533, wherein the connecting part 531 is fixedly connected to the connecting rod 52; the guide groove body 532 is fixedly connected with the base 1 and is positioned in the fluid channel 101; the valve plate 533 is fixedly connected to the connecting part 531.
Further, referring to fig. 1 to 5, the connecting part 531 includes a main rod 5311, an auxiliary rod 5312 and a fixing feature 5313, the main rod 5311 is fixedly connected to the connecting rod 52 and is located on a side of the connecting rod 52 away from the rotating nut 51; one end of the auxiliary rod 5312 is slidably connected to the main rod 5311, and the other end of the auxiliary rod 5312 is fixedly connected to the valve plate 533; the securing feature 5313 is slidably connected to the main stem 5311.
In this embodiment, the driving motor 30 is installed above the fixing base 21, an output end of the driving motor is fixedly connected to the rotary screw 40, the rotary screw 40 is rotatably connected to the fixing base 21 and extends into the fixing base 21, the rotary nut 51 is sleeved on an outer side of the rotary screw 40 and is disposed opposite to the rotary screw 40 in a threaded fit manner, and moves up and down along with the forward rotation and reverse rotation of the rotary screw 40, the connecting rod 52 is fixedly connected to the rotary nut 51 and moves along with the rotary nut 51, the main rod 5311 is slidably connected to the fixing base 21 and penetrates through the fixing base 21, a lower portion of the connecting rod 52 is fixedly connected to the connecting rod 5312 and moves up and down along with the connecting rod 52, the sub-rod 5312 is connected to the main rod 5311 through the fixing feature 5313 and moves up and down along with the main rod 5311, and a lower portion of the sub-rod 5312 penetrates through the base 1, and is fixedly connected with the valve plate 533, and then drives the valve plate 533 to move up and down, the valve plate 533 is arranged in cooperation with the fluid channel 101, when the valve plate 533 is arranged in the base 1, the fluid channel 101 can be closed, the guide groove 532 is fixedly connected with the base 1, is arranged in the fluid channel 101, and is arranged in cooperation with the valve body, and assists the stability of the valve body when moving, so far, the driving motor 30 is used for driving the rotary screw 40 to drive the rotary nut 51, the connecting rod 52, the main rod 5311 and the auxiliary rod 5312 to move up and down, the auxiliary rod 5312 drives the valve plate 533 to move up and down, and the fluid channel 101 is opened and closed, so that the automatic valve closing is realized, the fluid channel 101 can be quickly closed in emergency, and the user requirements are met.
Further, referring to fig. 5 and 6, the fixing feature 5313 includes a latch piece 5300, a compression spring 5301, a first rod 5302, a second rod 5303, a connecting spring 5304, and a fixing bolt 5305, wherein the latch piece 5300 is slidably connected to the main rod 5311 and penetrates through the main rod 5311 and the auxiliary rod 5312; one end of the compression spring 5301 is fixedly connected with the auxiliary rod 5312, and the other end of the compression spring 5301 abuts against the main rod 5311 and is located between the main rod 5311 and the auxiliary rod 5312; the first rod 5302 is fixedly connected with the latch piece 5300 and is located on one side of the latch piece 5300 away from the main rod 5311; the second rod 5303 is slidably connected to the first rod 5302 and located outside the first rod 5302; the two ends of the connecting spring 5304 are fixedly connected with the first rod 5302 and the second rod 5303, respectively, and are located inside the second rod 5303; the fixing bolt 5305 is threadedly coupled to the second shaft 5303 and extends through the second shaft 5303 and the first shaft 5302.
In this embodiment, the latch 5300 penetrates the main rod 5311 and the auxiliary rod 5312, the auxiliary rod 5312 is connected to the main rod 5311 such that the auxiliary rod 5312 can move along with the main rod 5311, the compression spring 5301 is fixed to the auxiliary rod 5312 and abuts against the main rod 5311, the compression spring is compressed between the main rod 5311 and the auxiliary rod 5312, the first rod 5302 is fixedly connected to the latch 5300, the second rod 5303 is covered outside the first rod 5302 and forms an expandable structure with the first rod 5302, both ends of the connection spring 5304 are respectively connected to the first rod 5302 and the second rod 5303, the connection spring is stretched between the first rod 5302 and the second rod 5303, the fixing bolt 5305 penetrates the first rod 5302 and the second rod 5303 to fix the first rod 5302 and the second rod 5303, and the motor 30 is driven in an emergency situation, the switch door 22 on the fixed seat 21 is opened, the fixed bolt 5305 is manually rotated out, the first rod 5302 is movable, the elastic force of the connecting spring 5304 enables the first rod 5302 to withdraw into the second rod 5303, the latch piece 5300 is driven to retreat, the latch piece is enabled to leave the main rod 5311 and the auxiliary rod 5312, at this time, the auxiliary rod 5312 is movable, the elastic potential energy of the compression spring 5301 drives the auxiliary rod 5312 to move downwards, the valve plate 533 further moves downwards and is clamped into the fluid channel 101, the fluid channel 101 is closed, an emergency closing function is achieved, and the user requirements are met.
Further, referring to fig. 2 and 4, the valve plate 533 includes a plate body 5331, a reinforcing spring 5332, and a locking pin 5333, the plate body 5331 is fixedly connected to the auxiliary rod 5312 and is located on a side of the auxiliary rod 5312 away from the main rod 5311; the number of the reinforcing springs 5332 is plural, and the plural reinforcing springs 5332 are distributed inside the plate 5331; one end of the engaging pin 5333 is fixedly connected to the plate 5331, and the other end thereof is engaged with the base 1 and is located on a side of the plate 5331 away from the sub-rod 5312. In the present embodiment, it is preferred that,
in this embodiment, the plate 5331 is fixedly connected to the sub-rod 5312, and moves up and down along with the sub-rod 5312 to open and close the fluid channel 101, the reinforcing springs 5332 are provided in the plate 5331, respectively, so as to reinforce the structural strength of the plate 5331 and offset the impact force of the fluid when the plate is closed, and the engaging pin 5333 is fixedly connected to the plate 5331 and engaged with the base 1, so as to improve the closing effect and the emergency closing effect when the plate 5331 is closed.
Further, referring to fig. 5 and 6, the auxiliary member 23 includes a sliding seat 231, a ball 232 and a sealing member 233, wherein the sliding seat 231 is fixedly connected to the second rod 5303 and is located on a side of the second rod 5303 away from the first rod 5302; two sides of the ball 232 are respectively connected with the sliding seat 231 and the fixed seat 21 in a rolling manner, and are located between the sliding seat 231 and the fixed seat 21; the sealing member 233 is fixedly connected to the base 1 and is located on a side of the base 1 close to the main rod 5311.
In this embodiment, the sliding seat 231 is fixedly connected to the second rod 5303 and slidably connected to the fixing seat 21, so as to ensure the stability of the second rod 5303 moving up and down along with the pin 5300, thereby facilitating the better closing effect, the balls 232 are rotatably connected to the sliding seat 231 and rotatably connected to the fixing seat 21, so as to reduce the friction force generated when the sliding seat 231 slides, thereby facilitating the better use effect, and the sealing member 233 is fixed to the base 1, thereby preventing the fluid from leaking upwards, and facilitating the better use effect.
Further, referring to fig. 1 and fig. 2, the control component 60 includes an electric control box 61, an energy storage power source 62 and an alarm component 63, wherein the electric control box 61 is fixedly connected with the fixing base 21 and is located on one side of the fixing base 21 close to the driving motor 30; the energy storage power supply 62 is connected with the driving motor 30 and is positioned inside the electric cabinet 61; the alarm part 63 is arranged on the fixed seat 21.
Further, referring to fig. 1, fig. 2 and fig. 4, the alarm part 63 includes an alarm 631 and a pressure sensor 632, wherein the alarm 631 is disposed on the fixing base 21; the pressure sensor 632 is disposed on the valve plate 533.
In this embodiment, the electric cabinet 61 is installed on the fixed base 21, and the controller and the energy storage power source 62 are installed inside, the energy storage power source 62 provides power for electronic devices such as the driving motor 30, and the fluid channel 101 can still be automatically closed in case of power failure, the alarm 631 with the model of PXT10 is installed on the fixed base 21 and electrically connected with the controller, the pressure sensor 632 with the model of TTLC102 is installed on the plate 5331, senses the pressure borne by the plate 5331, and is electrically connected with the controller, transmits the sensed model to the controller, and when the opened state is displayed, the pressure sensor 632 can also sense the pressure, thereby proving machine failure, and then transmits a signal to the controller, and the controller controls the alarm 631 to emit buzz, so as to warn an operator to make maintenance in time, the use effect is promoted to be better, and the user requirements are met.
A gate valve is suitable for the gate valve electrohydraulic driving system 100 with the emergency valve closing function.
In the present embodiment, the gate valve is applied to the gate valve electrohydraulic actuator system 100 having the emergency valve closing function.
While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims (4)

1. An electro-hydraulic driving system of a gate valve with an emergency valve closing function is characterized by comprising a base, a supporting assembly and a power assembly;
the base is internally provided with a fluid channel, the support assembly comprises a fixed seat, a switch door and an auxiliary component, the fixed seat is detachably connected with the base and is positioned above the base, the switch door is rotatably connected with the fixed seat and is positioned on one side of the fixed seat far away from the base, the auxiliary component is slidably connected with the fixed seat, and the power assembly is rotatably connected with the fixed seat;
the power assembly comprises a driving motor, a rotating screw rod, a moving component and a control component, wherein the driving motor is fixedly connected with the fixed seat and is positioned on one side of the fixed seat, which is far away from the base; the rotating screw rod is fixedly connected with the output end of the driving motor and extends into the fixed seat; the moving component is rotationally connected with the rotating screw rod; the control component is fixedly connected with the fixed seat;
the moving component comprises a rotating nut, a connecting rod and a valve closing component, and the rotating nut is rotatably connected with the rotating screw rod and is positioned on the outer side of the rotating screw rod; the connecting rod is fixedly connected with the rotating nut and is positioned on the outer side of the rotating nut; the valve closing component is fixedly connected with the connecting rod;
the valve closing component comprises a connecting part, a guide groove body and a valve plate, and the connecting part is fixedly connected with the connecting rod; the guide groove body is fixedly connected with the base and is positioned in the fluid channel; the valve plate is fixedly connected with the connecting part;
the connecting part comprises a main rod, an auxiliary rod and a fixing feature, and the main rod is fixedly connected with the connecting rod and is positioned on one side of the connecting rod, which is far away from the rotating nut; one end of the auxiliary rod is connected with the main rod in a sliding mode, and the other end of the auxiliary rod is fixedly connected with the valve plate; the fixed feature is slidably connected with the main rod;
the fixing feature comprises a bolt piece, a compression spring, a first rod, a second rod, a connecting spring and a fixing bolt, wherein the bolt piece is connected with the main rod in a sliding mode and penetrates through the main rod and the auxiliary rod; one end of the compression spring is fixedly connected with the auxiliary rod, and the other end of the compression spring is abutted against the main rod and is positioned between the main rod and the auxiliary rod; the first rod is fixedly connected with the bolt piece and is positioned on one side of the bolt piece, which is far away from the main rod; the second rod is connected with the first rod in a sliding mode and is positioned on the outer side of the first rod; two ends of the connecting spring are fixedly connected with the first rod and the second rod respectively and are positioned in the second rod; the fixing bolt is in threaded connection with the second rod and penetrates through the second rod and the first rod;
the auxiliary component comprises a sliding seat, a ball and a sealing element, and the sliding seat is fixedly connected with the second rod and is positioned on one side of the second rod, which is far away from the first rod; two sides of the ball are respectively connected with the sliding seat and the fixed seat in a rolling way and are positioned between the sliding seat and the fixed seat; the sealing element is fixedly connected with the base and is positioned on one side of the base close to the main rod;
the driving motor is used for driving the rotary screw rod to drive the rotary nut, the connecting rod, the main rod and the auxiliary rod to move up and down, and the auxiliary rod drives the valve plate to move up and down to open and close the fluid channel;
in an emergency, when the driving motor fails, the switch door on the fixed seat is opened, the fixing bolt is manually rotated out, the first rod is movable, the elastic force of the connecting spring enables the first rod to withdraw into the second rod to drive the bolt piece to retreat, so that the bolt piece is separated from the main rod and the auxiliary rod, at the moment, the auxiliary rod is movable, the elastic potential energy of the compression spring drives the auxiliary rod to move downwards, the valve plate moves downwards and is clamped into the fluid channel, and the fluid channel is closed.
2. The gate valve electrohydraulic drive system having an emergency shut-off function according to claim 1,
the control component comprises an electric cabinet, an energy storage power supply and an alarm component, wherein the electric cabinet is fixedly connected with the fixed seat and is positioned on one side of the fixed seat close to the driving motor; the energy storage power supply is connected with the driving motor and is positioned in the electric cabinet; the alarm component is arranged on the fixed seat.
3. The gate valve electrohydraulic drive system having an emergency valve-closing function according to claim 2,
the alarm component comprises an alarm and a pressure sensor, and the alarm is arranged on the fixed seat; the pressure sensor is disposed on the valve plate.
4. A gate valve is applied to the gate valve electrohydraulic driving system with the emergency valve closing function according to claim 1.
CN202111112262.3A 2021-09-23 2021-09-23 Gate valve electro-hydraulic driving system with emergency valve closing function and gate valve Active CN113864470B (en)

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CN202111112262.3A CN113864470B (en) 2021-09-23 2021-09-23 Gate valve electro-hydraulic driving system with emergency valve closing function and gate valve

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Application Number Priority Date Filing Date Title
CN202111112262.3A CN113864470B (en) 2021-09-23 2021-09-23 Gate valve electro-hydraulic driving system with emergency valve closing function and gate valve

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CN113864470B true CN113864470B (en) 2022-09-13

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CN212338225U (en) * 2020-05-16 2021-01-12 浙江锦龙阀门有限公司 Electric gate valve
CN212672465U (en) * 2020-07-02 2021-03-09 中苏科技股份有限公司 Wireless intelligent low-power-consumption electric ball valve
CN213928773U (en) * 2020-11-04 2021-08-10 江苏大田阀门制造有限公司 Automatic high-pressure pump protection valve structure of recycling

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