TW201339465A - Gas flow channel control valve set and fluid drawing and pumping device comprising the valve set - Google Patents

Abstract

The present invention provides a gas flow channel control valve set, which comprises a separation unit that has a side end surface affixed at open ends of two internal holes of a gas flow channel and is fixed by having a circumferential portion thereof clamped. The central portion of the separation unit is capable of being deformed so that deformation can be generated when the central portion of the separation unit is acted upon by an external force, thereby to change the engaging state between the side end surface of the separation unit and the open ends of the respective internal holes to realize a control operation for establishing communication between or blocking the internal holes from each other.

Description

Gas flow control valve group and fluid extraction or delivery device having the same

The present invention relates to an auto repair tool, and more particularly to a gas flow path control valve block and a fluid extraction or pumping device having the same.

In the previous patents Nos. 89215086 and No. 89222099, the applicants respectively provided a feeding device suitable for replacing fluids such as grease for vehicle lubrication, and effectively improving the convenience of the auto repair operation procedure. However, the applicant also found that the technical content provided in the pre-licensing cases of the new patents was not perfect, and the airtightness was not perfect, so that the high-pressure gas had not passed. The venturi is leaked to the container of the delivery device for containing the fluid, causing the pressure inside the container to rise and reducing the effect of fluid extraction.

After the research, the applicant found that the technical content that caused the lack of air-tightness is due to the control valve that controls the opening and closing of the high-pressure gas flow path, which is not perfect in construction. The second figure is described in detail: in general, the technical content of the control gas flow channel opening and closing disclosed in the prior patents is based on a high pressure gas flow channel (1), which is provided with a control valve group ( 2), by means of the diaphragm (2a) of the control valve group (2), under the action of the spring force provided by a spring (2b), normally blocking the flow channel (1) The internal orifice (1a, 1b) simultaneously provides a user-operable pressing member (3) for controlling the opening (2a) of the control valve group (2) to switch the flow passage (1), It is a technical content that can control the flow channel (1) to control whether the channel is unblocked or not, because it is attached to the flow channel (1) by a piece of septum (2a). The opening end faces of the orifices (1a, 1b), therefore, when the fluid extraction device or the fluid delivery device is connected to an external high-pressure gas source At this time, the pressure of the gas immediately acts on the upper side surface of the spacer (2a) via the orifice (1a), and the spacer (2a) is pushed downwardly away from each of the internal orifices to which it should abut ( 1a, 1b) The opening of the open end causes each of the internal orifices (1a, 1b) to communicate due to the loss of the barrier (2a).

The upper opening defect is not overcome by the spring force provided by the spring (2b) to the spacer (2a), mainly because the external air source pressure acts on the edge region of the spacer (2a). However, the conventional technology does not provide a specific technical content for maintaining the stability of the position at the location of the force. Therefore, the edge region of the spacer (2a) is pressed under the pressure of the external high-pressure gas source for a long time. In the case, local deformation is easily generated, and the spacer (2a) cannot achieve the blocking effect of blocking the communication between the internal orifices (1a, 1b).

Accordingly, the main object of the present invention is to provide a gas flow path control valve block in which one end surface of one partition portion is attached to the open ends of the two internal orifices of the gas flow path, and the partition portion is provided The peripheral side is clamped and positioned, and at the same time, the central portion of the partition has a deformable ability, so that the central portion of the partition is deformed when subjected to an external force, thereby changing one side of the partition. The abutting state between the end surface and the open end of each of the internal orifices is such as to achieve communication or block the control of each of the internal orifices.

In order to achieve the above object, the gas flow control valve group provided by the present invention comprises a base portion; a gas flow passage is disposed in the base portion for providing a flow passage of external high pressure gas in the base portion. Having a valve hole extending from the side end surface of the base portion to a predetermined depth, a valve chamber extending from the other end surface of the base portion to a predetermined depth and communicating with the valve hole, and an inlet hole Forming an outflow orifice in a side wall of the valve chamber to communicate with the valve chamber; a partition portion is accommodated in the valve chamber and is movable between a blocking position and an open position when located In the blocking position, the partition partially blocks the valve hole and blocks the outflow opening by another portion, and when located in the open position, the outflow opening is closed The valve holes are connected to each other via a space provided by the valve chamber; a valve stem is coaxially slidably disposed in the valve hole, and is connected to the partition at one end of the shaft; one end member is disposed in the valve chamber And the partition is interposed between the valve stem and the end piece; an elastic member interposed between the end piece and the end piece The partition is configured to provide an elastic force to the partition such that the partition is normally located at the blocking position; a pressing member is pivotally disposed on the base and pivotable between a release and a lower pressing position When in the depressed position, the stem is axially displaced and the partition is urged to move from the blocking position to the open position; and the feature is that the end piece is The abutting end abuts against the partition, and the other part of the partition is positioned between the abutting end and the edge of the outflow opening; the partition is deformed by an external force, and the The partition is not subjected to a portion of the clip positioning, and the displacement required to actuate the partition between the blocked position and the open position is provided by deformation.

Furthermore, the upper gas flow control valve group is provided as a part of the fluid extraction device or the fluid delivery device. Specifically, the fluid extraction device comprises a gas flow channel control as described above. The valve block, a venturi tube set, is located at the end of the gas flow path of the gas flow control valve group, and a cylindrical container is closed by the base of the gas flow control valve group, and a connecting channel portion is connected The container and the low static pressure zone of the venturi tube set.

The fluid delivery device comprises a gas flow control valve group as described above, and a venturi tube set is located at the end of the gas flow path of the gas flow control valve group, and a cylindrical container is received by the barrel. The base of the gas flow control valve block is closed, and a connecting passage portion is connected to the low static pressure region of the container and the venturi tube group, and a blocking member is disposed on the gas outlet port of the venturi tube group. And moving between a blocking position and an opening position, when in the open position, allowing the internal gas flow path of the venturi group to communicate with the atmosphere via the outlet port, and when located in the blocking position , the outlet is closed

In the following, two preferred embodiments of the invention will be described and further illustrated in conjunction with the drawings.

First, referring to the third to seventh embodiments, the first preferred embodiment of the present invention is disclosed as a fluid extraction device (10). The fluid extraction device (10) is mainly included. There is a gas flow control valve block (20), a venturi tube set (30), a cylindrical container (40), and a connecting passage portion (50).

As far as the fluid scintillation device (10) is concerned, other constituent elements other than the gas flow control valve group (20) are disclosed in the prior art, and the specific technical content thereof has been China's new patent No. 089215086 is disclosed in detail. Therefore, the applicant will not be redundant in the content of these prior art, but only the gas flow control valve group (20). The specific technical content will be described in detail as follows.

The gas flow control valve group (20) comprises a base (21), a gas flow passage (22), a partition (23), a valve stem (24), an end piece (25), and an elastic member. (26) and a pressing member (27).

The base (21) has a suitable shape for bonding to the barrel opening (41) of the container (40), thereby closing the opening (41) to make the internal space of the container (40) In a closed state, the closed internal space (42) is subjected to a pressurization or decompression operation.

The gas flow channel (22) is disposed on the base portion (21) for providing a flow passage of external high pressure gas in the base portion (21), and has a valve hole (221) from the base portion (21) The upper end surface extends downwardly at a proper depth, and a valve chamber (222) having a larger diameter than the valve hole (221) extends upward from the bottom end surface of the base portion (21) and is coaxial with the valve hole (221) Connecting, and forming a downward facing annular shoulder (223) between the valve hole (221) and the valve chamber (222), an inlet hole (224) extending inwardly from a sidewall of the base (21) And forming a first-class outlet port (2241) on the shoulder (223), the hole axis corresponding to the hole axis of the valve hole (221), and an outlet hole (225) from the valve hole (221) One of the side hole walls extends outwardly to the other side wall of the base portion (21), thereby passing through each of the inlet holes (224), the valve chamber (222), the valve hole (221), and the outlet hole (225) a flow passage formed to allow external high pressure gas to flow in the base (21); wherein, further, the shoulder (223) is stepped and the plane is perpendicular to the valve bore (221) the hole axis, and has one of the coaxial counterparts Surface (2231) and an outer surface (2232); and, the outflow opening (2241) is the opening by the Department of the inflow holes (224) formed in the outer surface of the (2232).

The partition (23) is a flexible flat sheet made of a material such as rubber, and has an outer diameter similar to that of the valve chamber (222) and coaxially accommodated in the valve chamber (222). And the one side of the top side faces the downward plane of the shoulder (223) and is movable between a blocking position and an open position when the partition (23) is in the blocking position Simultaneously blocking the outflow orifice (2241) and the valve orifice (221), thereby interrupting the flow of the gas flow passage (22), and when the partition (23) is in the open position, The outflow orifice (2241) is allowed to communicate with the valve bore (221) via the space provided by the valve chamber (222) to prevent the flow of gas from being blocked.

The valve stem (24) is coaxially slidably disposed in the valve hole (221), and is reciprocally axially displaceable in the valve hole (221), and is fixed to the partition (23) at the bottom end of the shaft. The valve stem (24) and the partition (23) are interlocked with each other.

The end piece (25) has an upwardly facing cylindrical sleeve (251), and the opening is directed toward the shoulder (223), and the valve chamber (223) is screwed at the base (21). In the opening of the bottom end surface, an annular abutting end (252) is located on the top opening of the sleeve body (251) and abuts upwardly on the edge portion of the partition portion (23) away from the center of curvature of the body (23). And the edge portion of the abutting spacer is positioned between the outer ring surface (2232) and the abutting end (252), wherein the annular radius of the abutting end (252) is greater than the outflow hole The port (2241) and the valve hole (222) are axially spaced from each other.

The elastic member (26) is a spring that is received in the sleeve body (251) and abuts against the central portion of the partition portion (23) to provide elastic force to push the partition. The portion (23) is such that the partition (23) is normally located at the blocking position.

The pressing member (27) has a rod shape and is pivotally connected to the base portion (21) at one end, and the shaft body corresponding to the valve rod (24) protrudes from the rod end above the base portion (21), and is The pivoting action between the lower pressing and the releasing position, when the pressing member (27) is located at the pressing position, pushing the valve stem (24) to move downwardly, so that the partition (23) is linked Actuation from the normally closed position to the open position allows the flow of gas in the base (21) to be smooth.

By virtue of the composition of the above-described members, the fluid scooping device (10) is used in the same manner as the prior art, and is provided to the operator for the operation of dipping an external fluid into the interior of the container (40).

As will be further explained herein, the operation of the partition (23) between the blocking position and the open position is different from the overall positional change produced by the prior art, and is based on the partition. (23) deformation of the central region of the sheet, providing the displacement required for actuation between the respective blocking and opening positions, wherein the peripheral side of the partition (23) receives the end piece (25) and the The outer ring surface (2232) is tightly clamped without deformation or displacement, thereby effectively improving the lack of the prior art, thereby ensuring the normal operation of the partition (23) to improve the product. Reliability.

In addition, in order to achieve better airtightness, an airtight ring (shown on the figure) may be appropriately interposed between the end faces of the end piece (25) and the valve chamber (222), which are provided by an airtight ring. The technique of airtightness of the joint portions between the components is a basic technique generally known to be useful, and it is not described.

Referring again to the eighth to tenth embodiments, the fluid helium device (10 ' ) disclosed in the second preferred embodiment of the present invention has a majority of configurations and the first preferred embodiment. The same is disclosed in the above, and the difference is only in the technical content of the partition (23 ' ) component.

Specifically, the partition (23) disclosed in the first preferred embodiment is a flat disk-shaped body, and the inner and outer annular surfaces (2231) (2232) are It is stepped and has a drop. Therefore, when the partition (23) is located at the blocking position, the central portion of the partition (23) is required to be deformed by the partition (23) itself. The upper side surface is abutted against the inner annular surface (2231).

In the second preferred embodiment, the partition portion (23 ' ) has the same shape as a circular plate, but the cross-sectional shape is set to be opposite to the inner and outer annular surfaces (2231 ' ) (2232 ' a stepped shape corresponding to the stepped shape, according to which the partition (23 ' ) is in need of deformation when it is located at the blocking position, and in addition, each of the first and second The preferred embodiments are all equivalent to the purpose and efficacy of the prior art.

In comparison, for the first and second preferred embodiments, the second preferred embodiment is more convenient to assemble than the first preferred embodiment. Efficacy, in particular, since the first preferred embodiment is assembled, the area of the partition portion (23) sandwiched by the abutting end (252) is relatively small, when the partition (23) is assembled At that time, deformation is required to match the shoulder (223) having the drop, that is, the edge of the partition (23) is easily pulled out and positioned at the position where it is to be clamped, resulting in a certain assembly thereof. Difficult; and the partition (23 ' ) provided by the second preferred embodiment has a suitable stepped section, so that when it is assembled, the partition (23 ' ) is not deformed. That is, no stress is generated and the position of the partition (23 ' ) is changed. Thus, the second preferred embodiment is simple and convenient to assemble.

In addition, the two preferred embodiments of the present invention are both fluid pumping devices as their specific embodiments, but they are also applicable to the fluid delivery device disclosed in the prior art of the Japanese Patent No. 089222099, and the fluid extraction device and the fluid extraction device are The technical difference between the fluid delivery devices is only because the latter adds a blocking member that can close the outlet of the venturi group to the constituent elements. Specifically, the blocking member Is disposed on the gas outlet of the venturi group and movable between a blocking and an opening position, and when located in the opening position, the internal gas flow path of the venturi group is passed through the The outlet port is in communication with the atmosphere, and when located in the blocking position, the outlet port is closed, thereby achieving the purpose of changing the direction of gas flow, and the external fluid can be collected into the container, or the container can be The fluid in the medium is pushed to the outside, but the detailed technical content is disclosed by the prior art, and the applicant is no longer redundant.

(1). . . Flow channel

(1a). . . Orifice

(1b). . . Orifice

(2). . . Control valve group

(2a). . . bead

(2b). . . spring

(3). . . Pressing piece

(10). . . Fluid extraction device

(20). . . Gas flow control valve block

(twenty one). . . Base

(twenty two). . . Gas flow path

(221). . . Valve hole

(222). . . Valve room

(223). . . Shoulder

(2231). . . Inner annulus

(2232). . . Outer torus

(224). . . Inlet hole

(2241). . . Outflow orifice

(225). . . Outlet

(twenty three). . . Spacer

(twenty four). . . Valve stem

(25). . . End piece

(251). . . Sleeve

(252). . . Abutting end

(26). . . Elastic part

(27). . . Pressing piece

(30). . . Venturi tube group

(40). . . container

(41). . . Opening

(42). . . Internal space

(50). . . Connecting channel

The first figure is a cross-sectional view of a conventional technique showing the state of the spacer blocking gas flow path.

The second figure is a cross-sectional view of a conventional technique showing the state in which the spacer opens the gas flow path.

The third drawing is a perspective view of a first preferred embodiment of the present invention.

The fourth figure is an exploded perspective view of a first preferred embodiment of the present invention.

Figure 5 is a cross-sectional view of the first preferred embodiment of the present invention taken along the line 3-5 of Figure 5-5.

Figure 6 is a partial enlarged view of the first preferred embodiment of the present invention with respect to the area of the fifth panel A, wherein the spacer is located at the blocking position.

The seventh drawing is a partial enlarged view of the first preferred embodiment of the present invention with respect to the area of the fifth panel A, wherein the partition is located at the open position.

Figure 8 is a cross-sectional view showing a second preferred embodiment of the present invention.

Figure 9 is a partially enlarged view of the second embodiment of the present invention with respect to the area of the eighth Figure B, wherein the partition is located at the blocking position.

Figure 11 is a partially enlarged view of the second embodiment of the present invention with respect to the area of the eighth Figure B, wherein the partition is located at the blocking position.

(twenty one). . . Base

(221). . . Valve hole

(222). . . Valve room

(223). . . Shoulder

(2231). . . Inner annulus

(2232). . . Outer torus

(224). . . Inlet hole

(2241). . . Outflow orifice

(225). . . Outlet

(twenty three). . . Spacer

(twenty four). . . Valve stem

(25). . . End piece

(251). . . Sleeve

(252). . . Abutting end

(26). . . Elastic part

Claims (10)

A gas flow control valve group includes: a base portion; a gas flow passage disposed in the base for providing a flow passage of external high pressure gas in the base, having a valve hole from one of the base portions The side end surface extends inwardly to a predetermined depth, and a valve chamber extends from the other side end surface of the base portion to a predetermined depth and communicates with the valve hole, and an inlet hole is formed in a side wall of the valve chamber. An outlet port communicates with the valve chamber; a partition portion is received in the valve chamber and is movable between a blocking position and an open position, and when located at the blocking position, the partition is Blocking the valve hole with one part and blocking the outflow opening by another part, and when in the open position, the outflow opening and the valve hole are mutually provided through the space provided by the valve chamber And a valve stem coaxially disposed in the valve hole and connected to the partition at one end of the shaft; one end member is disposed in the valve chamber, and the partition is interposed between the valve stem and the valve stem Between the end pieces; an elastic member interposed between the end piece and the partition for providing elastic force to the partition The partition is normally located at the blocking position; a pressing member is pivotally disposed on the base and pivotable between a release and a lower pressing position, and when located in the depressed position, the valve stem is Shafting and pushing the partition to actuate from the blocking position to the open position; wherein the end piece abuts the partition with an abutting end and causes the partition to be The portion is sandwiched between the abutting end and the edge of the outflow opening; the partition is deformed by an external force, and the partition is not subjected to a positioning portion, and the partition is provided by deformation. The blocking position and the displacement required to actuate between the open positions. The gas flow path control valve group according to claim 1, wherein the valve chamber has an aperture diameter larger than an aperture of the valve hole, and an annular shoulder is formed therebetween, and the outflow aperture is located at the shoulder. On the surface. The gas flow path control valve group according to claim 2, wherein the partition portion has a sheet shape and abuts on the shoulder portion with one side surface. The gas flow control valve group according to claim 3, wherein the end piece has a cylindrical sleeve body coaxially disposed in the valve chamber with the open end facing the shoulder portion, and The abutting end is formed in an annular shape at the open end of the sleeve. The gas flow path control valve group according to claim 4, wherein the shoulder portion is stepped, has one coaxial inner ring surface and one outer annular surface, and the outflow opening is located outside Torus. The gas flow path control valve group according to claim 5, wherein the partition portion has a stepped shape and corresponds to the stepped shape of the shoulder portion. The gas flow control valve group according to claim 4, 5 or 6, wherein the distance between the outflow orifice and the orifice of the valve orifice is smaller than the radius of the abutment end. The gas flow path control valve group according to claim 1, wherein the partition is made of a rubber material. A fluid pumping device comprising: a gas flow control valve group selected from the group consisting of items 1 to 8 of the patent application; a venturi tube group located in the gas flow control valve group At the end of the gas flow path; a cylindrical container closed by the base of the gas flow control valve group; a connecting passage portion connecting the container and the low static pressure zone of the venturi group. A fluid delivery device comprising: a gas flow control valve group selected from the group consisting of items 1 to 8 of the patent application; a venturi tube set located in the gas flow control valve group At the end of the gas flow passage; a cylindrical container, the nozzle is closed by the base of the gas flow control valve group; a connecting passage portion is connected to the low static pressure region of the container and the venturi group; The closing member is disposed on the gas outlet of the venturi tube group and is movable between a blocking position and an opening position. When the opening position is located, the internal gas flow path of the venturi tube group is passed through The outflow port is in communication with the atmosphere, and when located in the blocking position, the outflow port is closed.