TWI872769B - Valve mechanism - Google Patents

Abstract

A valve mechanism comprises a link in a flow path, first and second ports in the path, a seal in the path for communicating with the first or second port or closing same, a stem having one end connected to the seal and the other end passing through the path to dispose externally, two external actuation members parallel to the stem and secured to the path, two pivotal members secured to ends of the actuation members respectively, and a shaft disposed across tops of the pivotal members and through the stem. The shaft can be operate to open or close the first or second port through the seal.

Description

Opening and closing mechanism

This invention belongs to the technical field of a valve, specifically, a mechanism that can be quickly opened and closed with accurate positioning of the action, so that the opening and closing control action of the valve can be stable, and the positioning can be accurate and extremely fast to avoid the occurrence of incorrect actions.

In the process equipment of high-precision electronic industries, such as semiconductor, optoelectronics, and electronics industries, many processes often require the configuration of pipeline systems for transmitting gas or extracting vacuum, thus generating the demand for valves for flow regulation or switching of various types of gas and liquid. The setting of such opening and closing mechanisms is used to isolate and control the flow of fluids in two areas. The existing opening and closing mechanism used for semiconductors has a main body of a three-way tube or a pipe body with an input end and an output end. An actuating unit is arranged on the upper end of the opening and closing mechanism, and the actuating unit acts on a transmission rod that penetrates the passage body to actuate a sealing plate, selectively opening or closing the passage between the lower opening and the side opening of the lower section of the opening and closing mechanism body.

The existing actuating units for actuating the transmission rod are mainly coaxially rotating screws or coaxially linearly sliding electromagnetic valves or driving parts. The main problem faced by these existing actuating units is that the action is not accurate enough, for example, the number of screw rotations is insufficient or excessive, or the linear sliding distance is insufficient or excessive, resulting in the transmission rod actuating the sealing plate to move insufficiently or excessively. Once the moving distance is insufficient, the sealing plate that pushes downwards will not be able to effectively close the passage between the lower port and the side port, or it will affect the position of the sealing plate that is folded upwards, making the passage between the lower port and the side port open with insufficient flow channel diameter, thereby affecting the operating flow between the two areas. In addition, once the moving distance exceeds the limit, it will cause the sealing plate to press downward or generate a greater pressure when folding upward, causing damage to the actuator unit or other parts. Therefore, how to solve the above-mentioned problems is what the industry urgently needs to develop, and this is also the topic that this invention intends to explore.

In view of the above shortcomings and needs, the inventor believes that further corrections are necessary. Therefore, with many years of experience in related technologies and product design and manufacturing, he has conducted research and creation on the above shortcomings and actively sought solutions. After many ingenuities, he has made newer research and development improvements on existing valves and finally successfully developed an opening and closing mechanism to overcome the inconvenience and trouble caused by the improper design of the actuating unit of the existing valves.

Therefore, the main purpose of the present invention is to provide a start-and-close mechanism that can stabilize the start-and-close control action of the valve and enable quick operation, and avoid erroneous actions.

Furthermore, the second main purpose of the present invention is to provide an opening and closing mechanism that can accurately position the sealing assembly of the valve so that the internal passage can be effectively opened or closed without affecting the operating flow and isolation between the two areas.

Based on this, the present invention mainly realizes the above-mentioned purpose and effect through the following technical means, which include: a passage body, which has a first opening and a second opening, a passage is formed between the first and second openings of the passage body, and a sealing component is provided in the passage body to selectively open or close the passage, and the sealing component can be moved between an open position and a closed position by a transmission rod passing through the passage body; an actuating connecting rod mechanism is provided in the passage body The actuating connecting rod mechanism has a hole-combined mounting seat formed on the passage body for the driving rod to pass through, and a connecting piece parallel to the driving rod and extending upward is pivoted on both sides of the hole-combined mounting seat, and the bottom end of a driving piece is pivoted on the top ends of the connecting pieces on both sides, and a shaft rod penetrating the top end of the driving rod is pivoted between the top ends of the driving pieces on the other two sides, so that the driving pieces drive the driving rod to move between the open position and the closed position through the shaft rod.

Thus, the opening and closing mechanism of the present invention can utilize an actuating connecting rod mechanism provided on the passage body. The actuating connecting rod mechanism can drive the control sealing plate and the transmission rod in the passage body through the connecting rod action of the connecting plate and the driving plate, so that the opening and closing operation of the valve can be stable and avoid the occurrence of misoperation. At the same time, the accurate positioning of the sealing plate is improved, so that the passage inside the passage body can be effectively opened or closed completely without affecting the operating flow and blockage between the two areas, and can avoid leakage or parts damage caused by inaccurate positioning, greatly improving its practicality, and enhancing its added value, so as to improve its economic benefits.

The present invention further achieves the aforementioned purpose and effect by using the following technical means; for example: preferably, the passage body is composed of a three-way passage body, the first opening of the passage body is formed on the peripheral wall, and the second opening of the passage body forms the bottom end, and the passage body has a transmission rod inside, and the sealing plate is provided at the end of the transmission rod, and the top end of the passage body is locked with an end cap that closes the inside, and the hole-combined mounting seat of the actuating connecting rod mechanism is formed on the top surface of the end cap, and the transmission rod can pass through the end cap to be actuated.

Preferably, the valve is composed of a flat passage body, and the first opening and the second opening are formed on two opposite side walls of the passage body, and the passage body has a sealing plate inside that can selectively open or block the passage between the first and second openings, and the sealing plate can be actuated by a transmission rod that passes through the passage body.

Preferably, the transmission rod has a first limit socket that extends beyond the passage body when in the open position, for indication, foolproofing and safety protection.

Preferably, a pull block is fixedly disposed between the two driving plates of the actuating connecting rod mechanism, and the pull block has a mounting groove for locking the two driving plates, so that the driving plates can be actuated by operating the pull blocks to drive the connecting plates to drive the transmission rod.

Preferably, a second limit socket is formed on the hole-combined mounting seat of the passage body, and a third limit socket is formed on the pull block of the actuating connecting rod mechanism, so that when the transmission rod actuates the sealing assembly to be in the closed position, the first limit socket of the transmission rod, the second limit socket of the hole-combined mounting seat and the third limit socket of the pull block can be opposite to each other, so that a limit rod can be selectively inserted to serve as an indication, foolproofing and safety protection when the transmission rod is in the closed position.

In order to enable the review committee to further understand the structure, features and other purposes of the present invention, the following is a preferred embodiment of the present invention, and is described in detail with the help of drawings, so that those familiar with the technical field can implement it in detail.

10: Channel entity

11: First port

12: Second port

16: Sealing plate

17: End cover

18: Drive rod

180: First limit jack

10A: Channel body

11A: First port

12A: Second port

17A: End cover

18A: Drive rod

20: Actuating linkage mechanism

21: Hole combined with mounting seat

210: Second limit socket

22: Interlude

23: Driver

25: Shaft

28: Trigger block

280: Mounting slot

281: Third limit jack

Figure 1: A three-dimensional schematic diagram of the opening and closing mechanism of the present invention.

Figure 2: A schematic diagram of a large portion of the actuating linkage mechanism in the opening and closing mechanism of the present invention.

Figure 3: A three-dimensional exploded schematic diagram of the details of the actuating linkage mechanism in the opening and closing mechanism of the present invention, to illustrate the state of each component and its relative relationship.

Figure 4: A side view of the opening and closing mechanism of the present invention before it is activated.

Figure 5: A side plan view of the first action of the actuating linkage mechanism in the opening and closing mechanism of the present invention.

Figure 6: A side plan view of the second action of the actuating linkage mechanism in the opening and closing mechanism of the present invention.

Figure 7: A side view of the opening and closing mechanism of the present invention after operation.

Figure 8: A three-dimensional schematic diagram of another preferred embodiment of the opening and closing mechanism of the present invention.

Figure 9: A three-dimensional exploded schematic diagram of another preferred embodiment of the opening and closing mechanism of the present invention.

Figure 10: A schematic plan view of the appearance of another preferred embodiment of the opening and closing mechanism of the present invention.

The present invention is an opening and closing mechanism. The technical content of the present invention is described below by a specific concrete implementation form, so that people familiar with this art can easily understand the advantages and effects of the present invention from the content disclosed in this manual. However, the present invention can also be implemented or applied through other different specific implementation forms. Therefore, in the specific implementation form of the present invention and its components attached with the legend, all references to the front and back, left and right, top and bottom, upper and lower, and horizontal and vertical are only used for the convenience of description, and do not limit the present invention, nor limit its components to any position or spatial direction. The dimensions specified in the drawings and the manual can be changed according to the design and requirements of the specific implementation form of the present invention without leaving the scope of the patent application of the present invention.

The contents of the opening and closing mechanism of the present invention are shown in FIG1 , which is composed of a passage body (10) having a passage inside (the passage may also be a chamber), and the passage ends of the passage body (10) respectively have a first opening (11) and a second opening (12), and the passage body (10) is provided with a sealing component inside which can selectively block the passage between the first opening (11) and the second opening (12). According to some embodiments, as shown in FIG. 1, FIG. 2 and FIG. 3, the passage body (10) may be a valve body of a valve, and the peripheral wall of the passage body (10) has a first opening (11) connected to the interior, and the bottom of the passage body (10) has a second opening (12) connected to the interior, wherein a passage is formed between the first and second openings (11, 12) of the passage body (10), and the sealing component in the passage body (10) for selectively blocking the passage may be a sealing plate (16) supported by a driving rod (18) at the end of the driving rod (18) (as shown in FIG. 4), and a sealing plate (16) for closing the interior is provided at the top of the passage body (10). The sealing assembly has an end cover (17), and the sealing plate (16) of the sealing assembly can be actuated by a driving rod (18) passing through the end cover (17), so that the driving rod (18) can drive the sealing plate (16) to selectively move between an open position and a closed position of the passage of the first and second ports (11, 12), so that the fluid (further refers to gas and liquid) can flow or be blocked between the first and second ports (11, 12) of the passage body (10), and the driving rod (18) has a first limit plug hole (180) that exceeds the top surface of the end cover (17) when in the open position, so as to serve as an indication, foolproofing and safety protection when the driving rod (18) is in the open position. The passage body (10) is provided with an actuating connecting rod mechanism (20) on the end cover (17) for actuating the linear sliding of the driving rod (18). The actuating connecting rod mechanism (20) is formed with a hole for the driving rod (18) to pass through and a mounting seat (21) on the top surface of the end cover (17). A connecting piece (22) parallel to the transmission rod (18) and extending upward is respectively pivoted on both sides, and the top end of a driving piece (23) is pivoted on the top end of the connecting piece (22) on both sides, and a shaft (25) penetrating the top end of the transmission rod (18) is pivoted between the top ends of the driving pieces (23) on the other two sides, so that the driving pieces (23) When the pivot point position of the connecting pieces (22) is rotated in an offset manner, the driving pieces (23) can drive the transmission rod (18) to move up and down linearly through the shaft (25) (as shown in Figures 4, 5, 6 and 7), so that the actuating connecting rod mechanism (20) can directly drive the transmission rod (18) to drive the sealing plate (16) to move and position between the open position and the closed position, so that the sealing plate (16) of the passage body (10) can selectively abut against and seal the passage between the first and second openings (11, 12), and the first limit insertion hole (180) of the transmission rod (18) can exceed the top surface of the hole-combined mounting seat (21) when in the open position. According to some embodiments, a pull block (28) is fixedly disposed between the driving plates (23) on both sides of the actuating connecting rod mechanism (20), so that the driving plates (23) can be actuated by operating the pull blocks (28) to drive the connecting plates (22) to drive the transmission rod (18), and the rotational extreme points on both sides of the connecting plates (22) are lower than the two sides of the horizontal line, so that the actuating transmission rod (18) can be restricted after moving to the upper and lower extreme points, and will not slip due to vibration. In addition, the lever block (28) has a mounting groove (280), so that the driving pieces (23) can be locked on the wall surface opposite to the mounting groove (280) of the lever block (28), so that the external power source can drive the actuating connecting rod mechanism (20) to drive the transmission rod (18) by actuating the lever block (28), so as to control the position of the sealing plate (16) inside the passage body (10), so as to selectively change the sealing or opening of the passage between the first and second ports (11, 12).

Thus, through the opening and closing action of the actuating connecting rod mechanism (20) on the passage body (10), an opening and closing mechanism with reliable action, rapid opening and closing, and accurate positioning can be formed.

When the present invention is actually used, as shown in FIG. 1 and FIG. 4, in operation, when the driving rod (18) is located at the uppermost opening position, the sealing plate (16) inside the passage body (10) can be located at the upper part so that the passage between the first and second ports (11, 12) is connected, so that the fluids in the working areas respectively connected to the first and second ports (11, 12) can flow mutually. The flow is conducted, and the driving piece (23) and the pull block (28) of the actuating connecting rod mechanism (20) assembled with the transmission rod (18) are located in the open position (as shown in FIG. 4 on the right side); when it is necessary to block the passage between the first and second ports (11, 12) of the passage body (10) of the valve, as shown in FIG. 5 and FIG. 6, the pull block (28) of the actuating connecting rod mechanism (20) is moved. 8) is turned upward and to the left, and the connecting piece (22) of the actuating connecting rod mechanism (20) cooperates with the driving piece (23) to actuate the transmission rod (18), so that the transmission rod (18) moves downward. When the pull block (28) of the actuating connecting rod mechanism (20) and the driving piece (23) are turned to the closed position on the other side (as shown on the left side in FIG. 7), the passage can be closed. The sealing plate (16) inside the main body (10) abuts against the bottom to block the passage between the first and second ports (11, 12), so that the fluid in the working area connected to the first and second ports (11, 12) can be blocked and stop flowing to each other. In this way, the sealing plate (16) inside the passage body (10) can be moved between the open and closed positions and accurately positioned.

The above-mentioned embodiments or drawings do not limit the implementation of the opening and closing mechanism of the present invention. According to some embodiments, as shown in FIG8, the valve is composed of a flat passage body (10A), and the two side walls of the passage body (10A) respectively have a first opening (11A) and a second opening (12A) connected to the interior, wherein a relative passage is formed between the first and second openings (11A, 12A) of the passage body (10A), and the passage body (10A) has an optional A sealing assembly (not shown) selectively opens or blocks the passage between the first and second ports (11A, 12A). The top end of the passage body (10A) is locked with an end cap (17A) that closes the interior. The sealing assembly can be actuated by a transmission rod (18A) passing through the end cap (17A) to selectively open and close the first and second ports (11A, 12A). The transmission rod (18A) is actuated by an actuating linkage mechanism (20) disposed between the end cap (17A) and the transmission rod (18A).

According to some embodiments, as shown in FIG9 and FIG10, a second limit hole (210) is formed on the hole-combined mounting seat (21) of the passage body (10), and a third limit hole (281) is formed on the pull block (28) of the actuating connecting rod mechanism (20), so that when the transmission rod (18) actuates the sealing assembly to be in the closed position, the first limit hole (180) of the transmission rod (18), the second limit hole (210) of the hole-combined mounting seat (21) and the third limit hole (281) of the pull block (28) can be opposite to each other, so that a limit rod (50) can be selectively inserted to serve as an indication, foolproofing and safety protection when the transmission rod (18) is in the closed position.

The above embodiments can all achieve the effects of the present invention, so any appropriate changes or modifications made by a person with ordinary knowledge in the relevant technical field should be considered as not departing from the patent scope of the present invention.

As can be seen from the foregoing, the opening and closing mechanism of the present invention is provided with an actuating connecting rod mechanism (20) on the passage body (10). The actuating connecting rod mechanism (20) can drive the transmission rod (18) of the control sealing plate (16) in the passage body (10) through the connecting rod action of the connecting plate (22) and the driving plate (23), so as to stabilize the opening and closing operation of the valve and avoid the occurrence of misoperation. At the same time, the accurate positioning of the sealing plate (16) is improved, so that the passage inside the passage body (10) can be effectively fully opened or fully closed without affecting the operating flow and blockage between the two areas, and can avoid leakage or damage to parts due to inaccurate positioning, thereby greatly improving its practicality.

From this, we can understand that the present invention is a highly creative creation. In addition to effectively solving the problems faced by previous inventions, it also greatly improves the efficacy. In addition, there is no same or similar product creation or public use in the same technical field. At the same time, it has improved efficacy. Therefore, the present invention meets the requirements of invention patents regarding "novelty" and "progressiveness", and an invention patent application is filed in accordance with the law.

10: Channel entity

11: First port

12: Second port

17: End cover

18: Drive rod

180: First limit jack

20: Actuating linkage mechanism

21: Hole combined with mounting seat

22: Interlude

23: Driver

25: Shaft

28: Trigger block

280: Mounting slot

Claims (10)

A kind of opening and closing mechanism, which comprises: a passage body, which has a first opening and a second opening, a passage is formed between the first opening and the second opening of the passage body, and a sealing component is arranged in the passage body, which can selectively open or close the passage, and the sealing component can be actuated by a driving rod passing through the passage body to move between an open position and a closed position; an actuating connecting rod mechanism, which is arranged in the passage body and is used to actuate the driving rod to linearly slide The actuating connecting rod mechanism has a hole-combined mounting seat formed on the passage body for the transmission rod to pass through, and a connecting plate parallel to the transmission rod and extending upward is pivoted on both sides of the hole-combined mounting seat, and the bottom end of a driving plate is pivoted on the top ends of the connecting plates on both sides, and a shaft rod penetrating the top end of the transmission rod is pivoted between the top ends of the driving plates on the other two sides, so that the driving plates drive the transmission rod to move between the open position and the closed position through the shaft rod. As described in claim 1, the opening and closing mechanism, wherein the passage body can be a valve body of a valve, and the first opening of the passage body is formed on the peripheral wall, and the second opening of the passage body forms the bottom, and the sealing assembly inside the passage body can be composed of a sealing plate supported by the top of the transmission rod, and the top end of the passage body is locked with an end cap that closes the inside, and the hole-combined mounting seat of the actuating connecting rod mechanism is formed on the top surface of the end cap, and the transmission rod can pass through the end cap to be actuated. The opening and closing mechanism as described in claim 1, wherein the passage body is composed of a flat valve body, and the first port and the second port are respectively formed on the two opposite side walls of the passage body, and the passage body has a sealing plate inside that can selectively open or block the passage between the first and second ports, and the sealing plate can be actuated by a transmission rod that passes through the passage body. The opening and closing mechanism as described in claim 1, wherein the driving rod has a first limit socket that extends beyond the passage body when in the open position, to serve as an indication, foolproofing and safety protection when the driving rod is in the open position. The opening and closing mechanism as described in claim 2, wherein the driving rod has a first limit socket that extends beyond the passage body when in the open position, to serve as an indication, foolproofing and safety protection when the driving rod is in the open position. The opening and closing mechanism as described in claim 3, wherein the driving rod has a first limit socket that extends beyond the passage body when in the open position, to serve as an indication, foolproofing and safety protection when the driving rod is in the open position. As described in claim 4, the start-stop mechanism has a pull block fixedly disposed between the two driving plates of the actuating connecting rod mechanism, and the pull block has a mounting slot for locking the two driving plates, so that the driving plates can be actuated by operating the pull blocks to drive the connecting plates to drive the transmission rod. As described in claim 5, the start-stop mechanism has a pull block fixedly disposed between the two driving plates of the actuating connecting rod mechanism, and the pull block has a mounting slot for locking the two driving plates, so that the driving plates can be actuated by operating the pull blocks to drive the connecting plates to drive the transmission rod. As described in claim 6, the start-stop mechanism has a pull block fixedly disposed between the two driving plates of the actuating linkage mechanism, and the pull block has a mounting slot for locking the two driving plates, so that the driving plates can be actuated by operating the pull blocks to drive the linkage plates to drive the transmission rod. As described in any one of claim 7 to 9, the opening and closing mechanism, wherein a second limit socket is formed on the hole-combined mounting seat of the passage body, and a third limit socket is formed on the toggle block of the actuating connecting rod mechanism, so that when the transmission rod actuates the sealing assembly to be in the closed position, the first limit socket of the transmission rod, the second limit socket of the hole-combined mounting seat and the third limit socket of the toggle block can be opposite to each other, so that a limit rod can be selectively inserted to serve as an indication, foolproofing and safety protection when the transmission rod is in the closed position.

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