Patent Application
20180051820
The present invention relates to right angle valves, and more particularly, to a right angle valve capable of covering the disc spring in order to prevent the disc spring from being stuck by other objects and facilitate the position recovering operation thereof.
Referring to
When the piston 2 is driven due to an air pressure, the piston 2 forces the controlling shaft 3 to move, thereby triggering the valve plate 4 to allow the connection in the three way pipe 1; at the meantime, the disc spring 5 is compressed. When the air pressure is removed, with the resilient force provided by the disc spring 5, the piston 2 moves to make the valve plate 4 block the connection in the three way pipe 1. With such operation, the air inflow and outflow are achieved. However, during the air inflow and outflow, the air might contain a certain amount of impurities, foreign matter, or dust, such objects are easily stuck on or attached to the disc spring 5. As a result, the movement of the disc spring 5 is kept from being facilitate, failing to accomplish a compete position recovering operation.
For improving such issues, an embodiment of the present invention discloses a right angle valve, which applies a covering measure to cover the disc spring when the air inflow is permitted, so as to prevent the disc spring from being stuck by foreign objects and facilitate the operation thereof.
For achieving the aforementioned objectives, an embodiment of the present invention provides a right angle valve, comprising:
a valve body including a cavity and a first pipe and a second pipe that are connected with the cavity;
a fixing member fixed to the valve body, the fixing member provided with a combining end inserted into the cavity;
a disc spring with one end combined to the combining end and the other end connected with a sealing member for sealing an inner end of the first pipe;
a cover body fixed to an end of the valve body away from the first pipe;
a piston member slidingly disposed in the cover body, one end of the piston member combined to the sealing member; and
a covering measure, the covering measure covering the disc spring when the piston member drives the sealing member to move away from the inner end of the first pipe in order to allow an air inflow, such that the disc spring is prevented from being exposed to the flowing air and prevented from being stuck or attached by foreign objects.
In an embodiment of the present invention, the covering measure includes a sleeve provided with a fixing end and a free end. The fixing end is fixedly combined with the fixing member, and the free end surrounds the combining end of fixing member and the disc spring.
In an embodiment of the present invention, when the sealing member moves away from the inner end of the first pipe to the largest distance, the sealing member resists against the free end.
In an embodiment of the present invention, the covering measure includes a sleeve that is fixedly combined with the sealing member and surrounds the disc spring.
In an embodiment of the present invention, the cover body is provided with an inner space, and the piston member has a piston body slidingly disposed in the inner space. In addition, an air inflow portion is disposed at the cover body adjacent to the valve body, and the air inflow portion is connected with the inner space.
In an embodiment of the present invention, the piston body is connected with a controlling shaft. The controlling shaft passes through the fixing member and is connected with the sealing member.
In an embodiment of the present invention, the piston body is concavely provided with a spring recess; the cover body is provided with a sealed end; a spring is disposed between the spring recess and the sealed end.
In an embodiment of the present invention, a positioning member is inserted in the spring.
In an embodiment of the present invention, the sealed end of the cover body is provided with a silencing member, wherein the inner end of the silencing member contacts the inner space.
In an embodiment of the present invention, a heating device is further provided for heating the valve body.
In an embodiment of the present invention, a heat insulating plate is further provided and disposed between the valve body and the cover body.
With such configuration, through the covering measure, when the sealing member opens to allow the air flow, the disc spring is covered in the sleeve, so as to prevent the disc spring from being stuck or attached by foreign matters or objects, thereby avoid the incompletion of the disc spring movement.
Furthermore, the heating device is used to heat the valve body, such that when the first pipe is opened, the micro-size foreign matters or objects are burned by the high temperature heat. Therefore, the foreign objects are unable to be accumulated in the pipe.
The aforementioned and further advantages and features of the present invention will be understood by reference to the description of the preferred embodiment in conjunction with the accompanying drawings where the components are illustrated based on a proportion for explanation but not subject to the actual component proportion.
Referring to
The valve body 10 is a three way pipe, comprising a cavity 11 and a first pipe 12 and a second pipe 13 that are connected with the cavity 11. The first pipe 12 and the cavity 11 are arranged in an axial alignment. The first pipe 12 and the second pipe 13 form a right angle arrangement.
The fixing member 20 is formed in a barrel shape structure and fixed on one end of the valve body 10 away from the first pipe 12. The fixing member 20 is provided with a combining end 21 inserted into the cavity 11.
The disc spring 30 has one end thereof combined with a combining end 21 of the fixing member 20, while the other end thereof is connected with a sealing member 31 for sealing the inner end of the first pipe 12, so as to optionally open or close to allow or block the connection between the first pipe 12 and the cavity 11.
The cover body 40 is fixed on one end of the valve body 10 away from the first pipe 12 and arranged on the outer side of the fixing member 20. The cover body 40 includes an inner space 41. An air inflow portion 42 is disposed on the cover body 40 adjacent to the valve body 10. The air inflow portion 42 comprises an air inlet 421 which is connected with the inner space 41 for contacting an outer air source, such that the air is input into the inner space 41. Furthermore, one end of the cover body 40 away from the air inflow portion 42 is provided with a sealed end 43. The sealed end 43 includes a silencing member 44, wherein the inner end of the silencing member 44 is connected with the inner space 41 for balancing the inner pressure and the outer pressure of the cover body 40. In addition, the sealed end 43 of the cover body 40 is provided with a positioning recess 45 which is connected with the inner space 41 and the inner end of the silencing member 44.
The piston member 50 is slidingly disposed inside the cover body 40. In an embodiment of the present invention, the piston member 50 includes a piston body 51 which is slidingly disposed in the inner space 41. The piston body 51 is combined with a controlling shaft 52. The controlling shaft 52 pass through the air inflow portion 42 and the fixing member 20, wherein one end of the controlling shaft 52 is combined with the sealing member 31. When the piston member 50 moves, the sealing member 31 optionally opens or closes the first pipe 12. Further, the piston body 51 is axially and concavely provided with a spring recess 53 which receives a spring 54, such that the spring 54 is disposed between the spring recess 53 and the positioning recess 45 of the sealed end 43, thereby providing the recovering function of the piston member 50. In addition, a positioning member 55 is disposed in the spring recess 53, and the positioning member 55 is formed in a T shape, so as to be inserted into the spring 54 in order to position the spring 54.
An embodiment of the present invention further comprises a covering measure. When the piston member 50 drives the sealing member 31 to move away from the inner end of the first pipe 12 and enables the air to flow, the disc spring 30 is covered, so that the disc spring 30 is prevented from being exposed to the flowing air. As a result, the disc spring 30 is not stuck and attached by foreign objects or dust in the air, facilitating the normal operation of the disc spring 30.
The covering measure includes a sleeve 60, which comprises a fixing end 61 and a free end 62. The sleeve 60 is mounted around the fixing member 20, such that the fixing end 61 is fastened with the fixing member 20 by use of screws or bolts, and the free end 62 surrounds the combining end 21 of the fixing member 20 and the disc spring 30. Also, the outer diameter of the free end 62 of the sleeve 60 is substantially equal to the outer diameter of the sealing member 31. When the sealing member 31 moves away from the inner end of the first pipe 12 to the largest distance, one end of the sealing member 31 away from the inner side of the first pipe 12 contacts the free end 62, forming a blockage status. Also, the sealing member 31 seals the free end 62 of the sleeve 60, whereby the disc spring 30 is completely compressed into the sleeve 60. Therefore, a covering and protecting effect is provided upon the disc spring 30.
Furthermore, an embodiment of the present invention includes a heating device 70, which heats the valve body 10 by in a contact or non-contact manner. By use of heating, when the first pipe 12 is opened, the micro size foreign objects or matters are burned in a high temperature environment. Therefore, foreign objects do not stick or accumulate in the pipe.
Also, a heat insulating plate 71 is disposed between the valve body 10 and the cover body 40. When the heating device 70 heats the valve body 10, the heat is transmitted to the cover body 40, so as to prevent the adverse effects due to the operation of the piston member 50 and the air leakage from happening.
Referring to
Referring to
When the piston member 50 drives the sealing member 31 to open against the first pipe 12, the sleeve 80 gradually moves along with the sealing member 31 toward the fixing member 20; when the sealing member 31 is completely open against the first pipe 12, the sleeve 80 resists against the held portion 22 of the fixing member 20, whereby the disc spring 30 is completely covered, achieving the aforementioned covering and protecting effect.
To sum up, by use of the covering measure, when the sealing member 31 opens to allow the air flowing, the disc spring 30 is covered in the sleeve 60 or sleeve 80, such that the disc spring 30 is prevented from being stuck or attached by foreign objects in the flowing air, assuring the normal operation of the disc spring 30.
Furthermore, through the heating device 70 heating the valve body 10, when the first pipe 12 is opened, the foreign matters or objects in the valve body 10 are burned by the high temperature heat, preventing the foreign objects from sticking or accumulating in the pipe.
Although particular embodiments of the invention have been described in detail for purposes of illustration, various modifications and enhancements may be made without departing from the spirit and scope of the invention. Accordingly, the invention is not to be limited except as by the appended claims.
