CN107035903B

CN107035903B - Exhaust pressure relief device

Info

Publication number: CN107035903B
Application number: CN201610078641.8A
Authority: CN
Inventors: 陈进容
Original assignee: Rossmax International Ltd
Current assignee: Rossmax International Ltd
Priority date: 2016-02-04
Filing date: 2016-02-04
Publication date: 2020-05-19
Anticipated expiration: 2036-02-04
Also published as: CN107035903A

Abstract

An exhaust pressure relief device includes a carrier with an actuating space and an actuating member disposed in the actuating space; wherein the carrier is also provided with a valve mouth connected to the actuating space, and the actuating member includes an axis and a valve plug that swings relative to the axis to control the distance between the valve plug and the valve mouth. By swinging the valve plug, a fine distance can be provided between the valve plug and the valve mouth at a position farther from the axis to reduce the exhaust volume, thereby achieving the purpose of exhaust fine-tuning and slow exhaust.

Description

Exhaust pressure relief device

Technical Field

The present invention relates to a pressure regulator, and more particularly to an exhaust and pressure relief device.

Background

In the past, such as the air exhaust and pressure relief device used in the sphygmomanometer, a movable valve member is mainly utilized to be propped against a container which contains air inside, namely a pressure relief outlet of the container; the air displacement to be exhausted is controlled by the distance between the valve element and the pressure relief outlet, so that the air pressure in the container can be adjusted to be used for measuring blood pressure and the like.

In the conventional exhaust and pressure relief device, when the valve element is separated from or in contact with the pressure relief outlet, the valve element moves linearly. Namely, the valve piece and the outlet are in equal distance relation at the interval of each part; that is, when the valve element is separated from the critical point of the pressure relief outlet, the formed space is surrounded between the periphery of the pressure relief outlet and the valve element, so that the formed space range is also larger, and the amount of gas that can be discharged is relatively larger, therefore, it is difficult to control the fine exhaust fine adjustment action, so that the fine adjustment performance of the exhaust cannot be further broken through.

Disclosure of Invention

The main objective of the present invention is to provide an exhaust and pressure relief device with a reasonable design and capable of effectively overcoming the above-mentioned drawbacks, wherein the actuation relationship between the valve element and the pressure relief outlet is controlled by a swing manner, so as to achieve the purpose of fine adjustment of exhaust and slow exhaust.

In order to achieve the above object, the present invention provides an exhaust and pressure relief device, which includes a carrier having an actuating space, and an actuating member disposed in the actuating space; wherein, the carrier is also provided with a valve nozzle communicated with the actuating space, and the actuating element comprises an axis and a valve plug which swings relative to the axis to control the distance between the valve nozzle and the valve nozzle. When the valve plug swings to form a distance with the valve nozzle, the distance can be changed due to the relative distance between the valve plug and the axis, and the position of the distance far away from the axis can provide a small amount of exhaust gas firstly, so that the aim is fulfilled.

Preferably, the carrier is provided with a coupling hole, and the valve nozzle is assembled on the coupling hole.

Preferably, the valve nozzle has a valve port extending to the actuating space.

Preferably, the center of the axis of the actuator is offset to the valve nozzle side with respect to the end surface of the valve port.

Preferably, an offset is formed between the central position of the shaft center and the end surface of the valve port, and the offset range is within 0.5 mm.

Preferably, the offset is within a range of 0.1 to 0.2 mm.

Preferably, the actuating member further has a base portion pivoted to the axis, and a driving portion for controlling the valve plug to swing about the axis and adjusting a distance between the valve plug and the valve nozzle, and the driving portion is connected to the base portion.

Preferably, the driving portion is a magnetic element and performs electromagnetic induction through a voltage element.

Preferably, the driving portion has a first magnetic pole and a second magnetic pole, and the voltage component is a coil.

Preferably, the valve plug has a valve arm extending from the driving portion, and a valve sleeve disposed on the valve arm.

Preferably, a gap is concavely arranged between the valve arm and the valve sleeve, and the gap corresponds to the valve nozzle.

Drawings

FIG. 1 is a schematic view of the internal structure of the first embodiment of the present invention in a sealed state.

FIG. 2 is a schematic view of the internal structure of the first embodiment of the present invention for providing slow exhaust.

Fig. 3 is an enlarged detail view of part a of fig. 2.

FIG. 4 is a schematic view of the internal construction of the first embodiment of the present invention for providing rapid venting.

FIG. 5 is a schematic view of the internal structure of the second embodiment of the present invention in a closed state.

FIG. 6 is a schematic view of the internal structure of the second embodiment of the present invention for providing slow exhaust.

Fig. 7 is an enlarged detail view of part a of fig. 6.

FIG. 8 is a schematic view of an internal construction for providing rapid exhaust in accordance with a second embodiment of the present invention.

[ description of main part symbols ]

Carrier 1

Actuation space 10 coupling hole 100

Valve nozzle 11 port 110

Actuator 2

Axle 20 base 200

Valve arm 210 of valve plug 21

Valve pocket 211 gap 212

First magnetic pole 220 of driving part 22

Second magnetic pole 221

Voltage assembly 3

Detailed Description

In order to further disclose the features and technical content of the present invention, reference should be made to the following detailed description of the present invention and accompanying drawings, which are provided for reference and illustration purposes only and are not intended to limit the present invention.

Please refer to fig. 1, which is a schematic diagram of the internal structure of the present invention in a sealed state. The invention provides an exhaust and pressure relief device which is used for connecting a container (not shown) containing gas and adjusting the gas pressure in the container by controlling the opening or closing of a valve port. The exhaust and pressure relief device comprises a carrier 1 and an actuating part 2 arranged on the carrier 1; wherein:

the carrier 1 mainly has an actuating space 10, and the actuating space 10 is used for the actuating element 2 to be disposed thereon, so that the carrier 1 can carry the actuating element 2 and the actuating element 2 can perform a predetermined movement in the actuating space 10. In addition, the carrier 1 is further provided with a valve nozzle 11 communicated with the actuating space 10, and in the illustrated embodiment of the present invention, the carrier 1 is provided with a combining hole 100 for the valve nozzle 11 to be assembled on the combining hole 100. The valve nozzle 11 is used to communicate with the container containing gas and has a valve port 110 extending to the actuating space 10; when the pressure of the gas in the container is to be reduced, the gas in the container can be exhausted through the valve mouth 11 and the valve port 110 thereof, so as to be decompressed.

The actuating component 2 is arranged in the actuating space 10 of the carrier 1 so as to carry out preset activities in the actuating space 10; the predetermined action is to control the opening or closing of the valve port 110 of the valve nozzle 11 by the actuator 2 through an external control (not shown) so as to adjust the gas pressure in the container. The actuating component 2 comprises a shaft 20 and a valve plug 21 swinging relative to the shaft 20; more specifically, the actuator 2 may further include a base 200 pivoted to the shaft center 20, and a driving portion 22 connected to the base 200, wherein the driving portion 22 may control the valve plug 21 to swing about the shaft center 20 through external control, such as the direction and amount of displacement, so as to adjust the distance between the valve plug 21 and the valve nozzle 11, thereby controlling the amount of exhaust through the distance.

In the embodiment of the present invention, the driving portion 22 can perform a left-right direction deflection displacement by a positive voltage and a negative voltage of a voltage component 3, the driving portion 22 can be a magnetic component having a first magnetic pole 220 and a second magnetic pole 221, and the voltage component 3 can be a coil for performing an electromagnetic induction with the driving portion 22. When the voltage component 3 is energized with a forward voltage, the driving portion 22 is deflected toward one side by utilizing the principle that the magnetic poles generated by the coil and the magnetic component are attracted by opposite polarities and repelled by the same polarity, and the deflection of the driving portion 22 can also deflect relative to the axis 20 due to the connection between the driving portion 22 and the base portion 200, and the valve plug 21 is driven to perform the preset movement; conversely, when the voltage element 3 is applied with a reverse voltage, the driving portion 22 is shifted toward the other side due to the other magnetic pole generated by the coil.

In addition, the valve plug 21 may further have a valve arm 210 extending from the driving portion 22, and a valve housing 211 disposed on the valve arm 210, wherein the valve housing 211 may be made of a material such as rubber, and is used to relatively abut against the valve port 110 of the valve nozzle 11, so as to form a sealed state through the contact between the rubber and the valve port 110, as shown in fig. 1. Furthermore, a gap 212 is recessed between the valve arm 210 and the valve housing 211, and the gap 212 corresponds to the valve port 110 of the valve nozzle 11; therefore, when the valve housing 211 abuts against the valve port 110, the deformation of the valve housing 211 caused by the extrusion of the valve port 110 provides a corresponding deformation space through the gap 212, so as to prevent the deformation of the valve housing 211 caused by the extrusion of the valve port 110 from concentrating on the periphery of the valve port 110 to affect the controllable and adjustable exhaust volume and the exhaust range.

Therefore, the exhaust and pressure relief device of the present invention can be obtained by the above-mentioned structure.

Accordingly, as shown in fig. 2 and 3, when the valve plug 21 is to be controlled to change from the sealing state of fig. 1 to the venting state, the actuator 2 can control the valve plug 21 to swing away from the contact with the valve port 110 of the valve nozzle 11 and generate a slight space S between the valve port 110 through the driving portion 22, so that the gas in the container can be vented through the space. Wherein, because the valve plug 21 of the actuating device 2 swings about the axis 20 to generate the distance S, when the valve plug 21 is separated from the valve port 110, the distance S is formed between the valve port 110 and the valve plug 21 on the side farther from the axis 20, and is also the maximum value of the distance S; the side of the valve port 110 and the valve plug 21 closer to the axial center 20 still maintains a certain contact relationship between the valve plug 21 and the valve port 110, i.e. the minimum value of the distance S. In other words, in the slow exhaust state of the present invention, the distance S is not equidistant, and changes according to the relative distance from the axis 20 because the valve plug 21 swings about the axis 20, i.e. the farther the valve port 110 is from the axis 20, the larger the distance S is from the valve plug 21; otherwise, the smaller. By the above characteristics, the distance S between the valve port 110 and the valve plug 21 can be further finely adjusted, so that the valve plug 21 can make the distance S in an inclined open state, and further, the gas in the container is exhausted from only one side with a larger distance S, thereby further reducing the exhaust amount and achieving the purposes of fine adjustment and slow exhaust.

Furthermore, as shown in fig. 4, when the exhaust is to be performed quickly, the valve plug 21 is only required to be continuously provided away from the valve port 110, so that the distance S can be increased, and the exhaust volume can be increased to achieve the purpose of rapid exhaust.

It is worth mentioning that: as shown in fig. 3, in order to make the valve plug 21 contact the valve port 110 more tightly, the center position O of the axial center 20 of the actuator 2 is more toward the valve mouth 11 side after dividing a horizontal position by the end surface of the valve port 110. That is, the central position O of the axis 20 and the end surface of the valve port 110 are not at the same horizontal position, but are higher than the horizontal position and form an included angle θ with the side closer to the valve port 110, the included angle θ can be used as the distance S for controlling the slow air release, and the larger the included angle θ is, the larger the distance S is; in the preferred embodiment, an offset is formed between the central position O of the shaft center 20 and the end surface of the valve port 110, and the offset is within a range of about 0.5mm, and preferably 0.1-0.2 mm, but not limited thereto.

Further, as shown in fig. 5 to 8, it is a second embodiment of the present invention. Wherein, the valve plug 21 is a sheet-shaped body, and one side is fixed on the valve arm 210, and the opposite side corresponds to the valve port 110 and the gap 212; thus, the distance S between the valve port 110 and the valve plug 21 can be further finely adjusted as described above (i.e., as shown in fig. 7), so that the valve plug 21 can tilt the distance S open, and further, the gas in the container can be exhausted from only the side with the larger distance S, and the exhaust amount can be further reduced, thereby achieving the same purpose of fine adjustment and slow exhaust.

It should be understood that the above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, therefore, all changes in the equivalent techniques and means using the contents of the present specification and the drawings are included in the scope of the present invention.

Claims

1. An exhaust pressure relief device, comprising:

a carrier, which is provided with an actuating space and is provided with a valve nozzle communicated with the actuating space; and

an actuating member disposed in the actuating space and including an axis and a valve plug swinging relative to the axis to control a distance between the valve plug and the valve nozzle, the actuating member further including a base portion pivoted to the axis and a driving portion for controlling the valve plug to swing about the axis and adjusting the distance between the valve plug and the valve nozzle, the driving portion being connected to the base portion, the valve plug including a valve arm extending from the driving portion and a valve sleeve disposed on the valve arm, the valve arm being recessed with a gap relative to the valve sleeve, the gap corresponding to the valve nozzle;

the valve mouth (11) has a valve port (110) extending to the actuating space (10), the center position of the shaft center (20) is deviated to one side of the valve mouth (11) relative to the end surface of the valve port (110), and when the valve port (110) contacts with the valve plug (21), a space (S) is formed at one side far away from the shaft center (20), and the space (S) is in an inclined opening state and can be used for fine adjustment and slow exhaust.

2. The venting and pressure relief device of claim 1, wherein said carrier has a coupling hole, and said valve nozzle is assembled to said coupling hole.

3. The device as claimed in claim 1, wherein an offset is formed between the center of the axial center and the end surface of the valve port, and the offset is within 0.5 mm.

4. The venting device of claim 3, wherein the offset is within the range of 0.1 mm to 0.2 mm.

5. The venting device of claim 1, wherein the driving portion is a magnetic element and is electromagnetically induced by a voltage element.

6. The apparatus of claim 5, wherein the driving portion has a first magnetic pole and a second magnetic pole, and the voltage element is a coil.