CN214743365U

CN214743365U - Self-closing valve with intelligent cut-off function

Info

Publication number: CN214743365U
Application number: CN202120301331.4U
Authority: CN
Inventors: 华广发
Original assignee: Longyan Xinfa Intelligent Gas Co ltd
Current assignee: Longyan Xinfa Intelligent Gas Co ltd
Priority date: 2021-02-02
Filing date: 2021-02-02
Publication date: 2021-11-16
Anticipated expiration: 2031-02-02

Abstract

The utility model relates to a self-closing valve with intelligent cutting function, which comprises a valve body and a switch mechanism, wherein the switch mechanism comprises a pull rod for controlling the movement of a piston, the pull rod is also provided with a groove, the relative position of the groove is provided with a motor, a drive plate is arranged on the motor, a shift lever is arranged on the drive plate, the motor can drive the shift lever to rotate, so that the shift lever rotates in the groove to drive the pull rod to move downwards; the motor is connected with the control chip, and the control chip is connected with the alarm; in a ventilation state, when a gas sensing module arranged on the alarm senses gas leakage, the gas sensing module sends an instruction to the control chip, the motor is started, the deflector rod is driven by the motor to pull the pull rod downwards, and after the pull rod is pulled downwards, the piston is propped against a valve port under the gas inlet pressure to close the gas; the utility model discloses an intelligence management and control, safe and reliable has solved the defect that can not self-closing when gas leakage or abnormal conditions in ventilating, avoids causing the potential safety hazard of poisoning, conflagration, explosion because of the gas leakage.

Description

Self-closing valve with intelligent cut-off function

Technical Field

The utility model belongs to the technical field of pipeline gas self-closing valve technique and specifically relates to a self-closing valve of taking intelligence cutting function is related to.

Background

Various combustible gases are indispensable important components in life of people, and bring much convenience to life of people; however, the use of gas also brings some accident potential to the life of people; the prevention of gas leakage is a worldwide research topic because of the occurrence of disaster accidents such as poisoning, fire and explosion caused by gas leakage in the using process; the existing self-closing valve mainly depends on a manual switch, can not be automatically closed when gas leaks or abnormal conditions occur in ventilation and use, can not be intelligently controlled, and is easy to cause potential safety hazards of poisoning, fire and explosion due to gas leakage.

SUMMERY OF THE UTILITY MODEL

In order to solve the above-mentioned problem that prior art exists, the utility model provides a take self-closing valve of intelligence cutting function, the alarm can sense the gas and leak the back, to control chip give-out order, starter motor, motor drive driving lever pull down the pull rod, pull down the back down at gas admission pressure under the piston top on the valve port, close the gas.

The technical scheme of the utility model as follows:

a self-closing valve with an intelligent cut-off function comprises a valve body, wherein the valve body is provided with a valve seat, an air inlet hole and an air outlet hole which are communicated, a valve port is arranged in the air inlet hole, a piston for opening or closing the valve port is arranged on the valve port, a switch mechanism for controlling the piston to open or close is arranged on the valve seat, the switch mechanism comprises a pull rod for controlling the piston to move, an inclined groove is arranged on the pull rod, the inclined groove is connected with the piston, when the pull rod is in situ, the piston is pressed against the valve port under the gas inlet pressure, and the valve port is closed and is not ventilated; when the switch mechanism is pulled upwards to move the pull rod upwards, the chute on the pull rod pushes the piston to move backwards, so that the valve port is opened for ventilation; the pull rod is also provided with a groove in a downward extending mode, a motor is arranged at a position opposite to the groove, a driving plate is installed on the motor, a driving rod extends outwards from the outer circle of the driving plate, and the motor can drive the driving rod to rotate so that the driving rod rotates in the groove to drive the pull rod to move downwards; the motor is connected with the control chip, and the control chip is connected with the alarm; under the state of ventilation, after a gas sensing module arranged on the alarm senses gas leakage, an instruction is sent to the control chip, the motor is started, the shifting rod is driven by the motor to pull the pull rod downwards, and the piston is propped against a valve port under the gas inlet pressure after the pull rod is pulled downwards, so that the gas is closed.

The switch mechanism comprises an iron sheet fixed in a valve seat, a guide hole is formed in the middle of the iron sheet, a pull rod is arranged in the guide hole, a magnet is arranged at the upper end of the pull rod and adsorbed on the outer end face of the guide hole, the pull rod penetrates through the guide hole to extend downwards, a lifting rod is adsorbed at the upper end of the magnet, a rubber pad used for sealing the valve seat is fixed at the lower end of the lifting rod, a gland is arranged on the valve seat and clamps the outer edge of the rubber pad on the valve seat after the gland compresses the outer edge of the rubber pad, the lifting rod penetrates through the gland to extend upwards, a gasket is arranged at the upper end of the lifting rod, a lifting button is slidably mounted on the gland, and the lifting button can be driven to move upwards when lifted;

the valve body is provided with a valve body shaft, a valve body is arranged in the valve body shaft, the valve body shaft is provided with a pull rod, the pull rod is provided with a chute, the chute is a chute through hole which is deviated from left to right, a groove is arranged on the side edge of the chute, the groove is a rectangular through hole groove, the grooving direction of the chute is the same as that of the groove, and the chute is perpendicular to the axis of the valve body; the motor is arranged on the rear side of the groove, and the axis of the motor is perpendicular to the axis of the valve body.

The dial is circular, a shift lever extends outwards from the outer circle of the dial, and the offset distance between the shift lever and the center of the dial is determined by the distance required by pulling down the pull rod.

The piston comprises a piston rod and a rubber ring, the rubber ring is fixed at the end part of the piston rod, the end part of the piston rod is of a cross structure, the outer diameter of the cross structure is matched with the aperture of a valve port, a pin shaft used for being installed in a groove is arranged on the piston rod, and the pin shaft is perpendicular to the piston rod.

Furthermore, the pull rod is provided with a chute which is a chute through hole deviated from left to right, and the slotting direction of the chute is vertical to the axial line of the valve body; a groove is formed in the left side face of the pull rod below the inclined groove, and the grooving direction of the groove is parallel to the axis of the valve body; the pull rod rear side is provided with the groove of stepping down, the groove of stepping down is used for the piston of stepping down, makes the piston installation back on the valve body axis.

Furthermore, the groove arranged on the pull rod is a U-shaped groove or a V-shaped groove, and a deflector rod on the drive plate can act on the groove to pull the pull rod down.

Further, the piston comprises a piston rod and a rubber ring, the rubber ring is wrapped at the end of the piston rod, a pin shaft used for being installed in the groove is arranged on the piston rod, and the pin shaft is perpendicular to the piston rod. The utility model discloses following beneficial effect has:

1. the utility model relates to a take self-closing valve of intelligent shutdown function, under the state of ventilating, after the gas response module that the alarm set up senses the gas and leaks, send the instruction to the control chip, start the motor, the motor drives the driving lever and pulls down the pull rod, pull down after the pull down the piston top on the valve port under gas admission pressure, thus close the gas; the utility model discloses an intelligence management and control, safe and reliable has solved the defect that can not self-closing when gas leaks or the abnormal conditions in ventilating, avoids causing the potential safety hazard of poisoning, conflagration, explosion because of the gas leaks.

2. The switch mechanism of the utility model comprises a pull rod for controlling the movement of the piston, wherein the pull rod is provided with a chute which is connected with the piston, when the pull rod is in the original position, the piston is propped against a valve port under the gas inlet pressure, and the valve port is closed and is not ventilated; when the switch mechanism is pulled upwards to move the pull rod upwards, the chute on the pull rod pushes the piston to move backwards, so that the valve port is opened for ventilation; the structure design is reasonable, and the operation is simple and convenient.

3. The utility model discloses tailpiece of the piston rod portion designs for cruciform structure, and cruciform structure's external diameter and valve port aperture cooperate, and the restriction piston can only be in parallel movement in the valve port aperture, and the drive piston rod reciprocates when avoiding the pull rod to reciprocate.

Drawings

FIG. 1 is a schematic structural view of the gas-off state of the present invention;

FIG. 2 is a schematic structural view of the gas-open state of the present invention;

fig. 3 is a schematic structural view of the piston of the present invention;

fig. 4 is a schematic structural view of the driving plate of the present invention;

fig. 5 is a schematic structural diagram of a second embodiment of the present invention;

fig. 6 is a schematic structural view of a second pull rod according to an embodiment of the present invention;

fig. 7 is a schematic structural view of a second piston according to an embodiment of the present invention;

the reference numbers in the figures denote:

1-a valve body; 11-a valve seat; 12-valve port; 2-a piston; 21-a piston rod; 22-rubber ring; 23-a pin shaft; 3-a pull rod; 31-a chute; 32-grooves; 33-a relief groove; 4-a motor; 41-a dial; 42-a deflector rod; 5-iron sheet; 6-a magnet; 7-lifting rod, 8-rubber pad; 9-pressing a cover; 10-a gasket; 13-lifting the button.

Detailed Description

The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

In a first embodiment, referring to fig. 1 to 5, a self-closing valve with an intelligent cut-off function includes a valve body 1, the valve body 1 is provided with a valve seat 11, an air inlet hole and an air outlet hole, which are communicated with each other, a valve port 12 is provided in the air inlet hole, a piston 2 for opening or closing the valve port 12 is provided on the valve port 12, a switch mechanism for controlling the opening or closing of the piston 2 is installed on the valve seat 11, the switch mechanism includes an iron sheet 5 fixed in the valve seat 11, a guide hole is provided in the middle of the iron sheet 5, a pull rod 3 is provided in the guide hole, a magnet 6 is provided at the upper end of the pull rod 3, the magnet 6 is adsorbed on the outer end face of the guide hole, the pull rod 3 passes through the guide hole to extend downwards, a lifting rod 7 is adsorbed at the upper end of the magnet 6, a rubber pad 8 for sealing the valve seat 11 is fixed at the lower end of the lifting rod 7, a gland 9 is provided on the valve seat 11, the outer edge of the rubber pad 8 is pressed by the gland 9 and then clamped on the valve seat 11, the lifting rod 7 penetrates through the gland 9 to extend upwards, a gasket 10 is arranged at the upper end of the lifting rod 7, a lifting button 13 is slidably arranged on the gland 9, and the lifting button 13 can drive the lifting rod 7 to move upwards when lifted; the pull rod 3 is provided with an inclined groove 31, the inclined groove 31 is connected with the piston 2, when the pull rod 3 is in the original position, the piston 2 is pressed against the valve port 12 under the gas inlet pressure, and the valve port 12 is closed and is not ventilated; when the switch mechanism is pulled upwards to move the pull rod 3 upwards, the chute 31 on the pull rod 3 pushes the piston 2 to move backwards, so that the valve port 12 is opened for ventilation; the pull rod 3 is further provided with a groove 32 in a downward extending mode, a motor 4 is arranged at a position opposite to the groove 32, a driving plate 41 is mounted on the motor 4, a driving lever 42 extends outwards from the outer circle of the driving plate 41, and the motor 4 can drive the driving lever 42 to rotate, so that the driving lever 42 rotates in the groove 32 to drive the pull rod 3 to move downwards; the motor 4 is connected with a control chip, and the control chip is connected with an alarm; in the ventilation state, when a gas sensing module arranged on the alarm senses gas leakage, the gas sensing module sends an instruction to the control chip, the motor 4 is started, the motor 4 drives the shifting rod 42 to pull the pull rod 3 downwards, and the piston 2 is propped against the valve port 12 under the gas inlet pressure after the pulling is downwards, so that the gas is closed.

Preferably, the pull rod 3 is provided with a chute 31, the chute 31 is a chute 31 through hole which is deviated from left to right, a groove 32 is arranged on the side of the chute 31, the groove 32 is a rectangular through hole groove, and the chute 31 and the groove 32 have the same grooving direction and are perpendicular to the axis of the valve body 1; the motor 4 is arranged at the rear side of the groove 32, and the axis of the motor 4 is vertical to the axis of the valve body 1.

Preferably, the dial 41 is circular, and the outer circle of the dial 41 extends outwards to form a shift lever 42, and the shift lever 42 is offset from the center of the dial 41 by a distance determined by the distance that the pull rod 3 needs to be pulled downwards.

Preferably, the piston 2 includes a piston rod 21 and a rubber ring 22, the rubber ring 22 is fixed at an end of the piston rod 21, the end of the piston rod 21 is a cross-shaped structure, an outer diameter of the cross-shaped structure is matched with an aperture of the valve port 12, a pin 23 for being installed in the groove 32 is arranged on the piston rod 21, and the pin 23 is perpendicular to the piston rod 21.

Embodiment two, referring to fig. 5 to 7, the difference from the embodiment is: the pull rod 3 is provided with a chute 31, the chute 31 is a chute 31 through hole which is deviated from left to right, and the slotting direction of the chute 31 is vertical to the axis of the valve body 1; a groove 32 is formed in the left side face of the pull rod 3 below the inclined groove 31, and the groove direction of the groove 32 is parallel to the axis of the valve body 1; the rear side of the pull rod 3 is provided with a yielding groove 33, and the yielding groove 33 is used for yielding the piston 2, so that the piston 2 is arranged on the axis of the valve body 1 after being installed.

Furthermore, the groove 32 of the pull rod 3 is a U-shaped groove or a V-shaped groove, and the shift lever 42 on the dial plate 41 can act on the groove 32 to pull the pull rod 3 downward.

Further, the piston 2 includes a piston rod 21 and a rubber ring 22, the rubber ring 22 is wrapped at the end of the piston rod 21, a pin 23 for being installed in the groove 32 is arranged on the piston rod 21, and the pin 23 is perpendicular to the piston rod 21.

The utility model discloses a theory of operation:

referring to fig. 1, when ventilation is needed, the lifting button 13 is lifted manually, and the lifting button 13 drives the lifting rod 7 to move upwards when lifted; when the lifting rod 7 moves upwards, the pull rod 3 also moves upwards under the attraction of the magnet 6, and in the upward movement of the pull rod 3, the inclined groove 31 on the pull rod 3 pushes the piston 2 to move backwards, so that the valve port 12 is opened, and gas enters into ventilation through the valve port 12.

Referring to fig. 2, when the environment is abnormal and the gas leaks, the gas sensing module arranged in the alarm senses the gas leakage and sends an instruction to the control chip to start the motor 4, the motor 4 drives the shift lever 42 on the dial plate 41 to rotate, so that the shift lever 42 rotates in the groove 32 to drive the pull rod 3 to move downwards; when the pull rod 3 moves downwards, the inclined groove 31 on the pull rod 3 is relatively deviated, so that the piston 2 has a space for moving forwards, and after the pull rod 3 is pulled downwards, the piston 2 is pressed against the valve port 12 under the gas inlet pressure, so that the gas is closed.

In the description of the present invention, it is to be understood that the terms "upward", "downward", "rearward", "rear", "one side", "forward", "close to", "inside", 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 description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "disposed," "connected," "secured," and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; the term "connected" may refer to a direct connection, an indirect connection through an intermediate, a connection between two elements or an interaction relationship between two elements, and unless otherwise specifically defined, the term should be understood as having a specific meaning in the present application by those skilled in the art.

The above only is the embodiment of the present invention, not limiting the patent scope of the present invention, all the equivalent structures or equivalent processes that are used in the specification and the attached drawings or directly or indirectly applied to other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A self-closing valve with an intelligent cut-off function comprises a valve body (1), wherein the valve body (1) is provided with a valve seat (11), an air inlet hole and an air outlet hole which are communicated, a valve port (12) is arranged in the air inlet hole, a piston (2) for opening or closing the valve port (12) is arranged on the valve port (12), and a switch mechanism for controlling the piston (2) to open or close is installed on the valve seat (11), and the self-closing valve is characterized in that the switch mechanism comprises a pull rod (3) for controlling the piston (2) to move, a chute (31) is arranged on the pull rod (3), the chute (31) is connected with the piston (2), when the pull rod (3) is in a normal position, the piston (2) is propped against the valve port (12) under the gas inlet pressure, and the valve port (12) is closed and is not ventilated; when the switch mechanism is pulled upwards to move the pull rod (3) upwards, the upper chute (31) of the pull rod (3) pushes the piston (2) to move backwards, so that the valve port (12) is opened for ventilation; the pull rod (3) further extends downwards to form a groove (32), a motor (4) is arranged at a position opposite to the groove (32), a driving plate (41) is mounted on the motor (4), a driving lever (42) extends outwards from the outer circle of the driving plate (41), and the motor (4) can drive the driving lever (42) to rotate, so that the driving lever (42) rotates in the groove (32) to drive the pull rod (3) to move downwards; the motor (4) is connected with a control chip, and the control chip is connected with an alarm; under the state of ventilating, after the gas response module that the alarm set up sensed the gas and leaked, send the instruction to control chip, start motor (4), motor (4) drive driving lever (42) pull rod (3) downwards, piston (2) top is on valve port (12) under gas admission pressure after the drop-down to close the gas.

2. The self-closing valve with the intelligent cut-off function as claimed in claim 1, wherein: the switch mechanism comprises an iron sheet (5) fixed in a valve seat (11), a guide hole is formed in the middle of the iron sheet (5), a pull rod (3) is arranged in the guide hole, a magnet (6) is arranged at the upper end of the pull rod (3), the magnet (6) is adsorbed on the outer end face of the guide hole, the pull rod (3) penetrates through the guide hole to extend downwards, a lifting rod (7) is adsorbed at the upper end of the magnet (6), a rubber pad (8) used for sealing the valve seat (11) is fixed at the lower end of the lifting rod (7), a gland (9) is arranged on the valve seat (11), the rubber pad (8) is clamped on the valve seat (11) by the gland (9) after being compressed, the lifting rod (7) penetrates through the gland (9) to extend upwards, a gasket (10) is arranged at the upper end of the lifting rod (7), and a lifting button (13) is arranged on the gland (9) in a sliding mode, when the lifting button (13) is lifted up, the lifting rod (7) can be driven to move upwards.

3. The self-closing valve with the intelligent cut-off function as claimed in claim 1, wherein: the pull rod (3) is provided with a chute (31), the chute (31) is a chute (31) through hole which is deviated from left to right, a groove (32) is formed in the side edge of the chute (31), the groove (32) is a rectangular through hole groove, and the chute (31) and the groove (32) have the same grooving direction and are perpendicular to the axis of the valve body (1); the motor (4) is arranged on the rear side of the groove (32), and the axis of the motor (4) is vertical to the axis of the valve body (1).

4. The self-closing valve with the intelligent cut-off function as claimed in claim 1, wherein: the dial plate (41) is circular, a shift lever (42) extends outwards from the outer circle, and the offset distance between the shift lever (42) and the center of the dial plate (41) is determined by the distance required by pulling down the pull rod (3).

5. The self-closing valve with the intelligent cut-off function as claimed in claim 1, wherein: the piston (2) comprises a piston rod (21) and a rubber ring (22), the rubber ring (22) is fixed at the end of the piston rod (21), the end of the piston rod (21) is of a cross structure, the outer diameter of the cross structure is matched with the aperture of the valve port (12), a pin shaft (23) used for being installed in a groove (32) is arranged on the piston rod (21), and the pin shaft (23) is perpendicular to the piston rod (21).

6. The self-closing valve with the intelligent cut-off function as claimed in claim 1, wherein: the pull rod (3) is provided with a chute (31), the chute (31) is a chute (31) through hole which is deviated from left to right, and the slotting direction of the chute (31) is vertical to the axis of the valve body (1); a groove (32) is formed in the left side face of the pull rod (3) below the inclined groove (31), and the grooving direction of the groove (32) is parallel to the axis of the valve body (1); the rear side of the pull rod (3) is provided with a yielding groove (33), the yielding groove (33) is used for yielding the piston (2), and the piston (2) is installed on the axis of the valve body (1).

7. The self-closing valve with the intelligent cut-off function as claimed in claim 6, wherein: the groove (32) arranged on the pull rod (3) is a U-shaped groove or a V-shaped groove, and the shifting rod (42) on the driving plate (41) can act on the groove (32) to pull down the pull rod (3).

8. The self-closing valve with the intelligent cut-off function as claimed in claim 1, wherein: the piston (2) comprises a piston rod (21) and a rubber ring (22), the rubber ring (22) is wrapped at the end of the piston rod (21), a pin shaft (23) used for being installed in a groove (32) is arranged on the piston rod (21), and the pin shaft (23) is perpendicular to the piston rod (21).