JP3178893U - Ball valve washer structure - Google Patents

Abstract

The present invention provides a ball valve washer structure that enhances the slip property, extends the service life, is easy to replace and has a short manufacturing time.
A ball valve washer structure includes a housing, a leak-proof washer, a ring-shaped sliding unit, and a cover. The housing 1 includes a storage area provided around and a position restriction area 12 provided around the bottom surface. The leak-proof washer 2 is disposed in the position restriction area 12 on the bottom surface of the housing 1. The ring-shaped sliding unit 3 includes a plurality of ring-shaped steel plates 31 and a ring-shaped graphite sheet 32 that are arranged in a storage area and are sequentially stacked on each other. The ring-shaped steel plate 31 disposed at the bottom is brought into contact with the bottom of the storage area, and an arc surface portion 33 is formed at the inner edge of the ring-shaped sliding unit 3.
[Selection] Figure 5

Description

  The present invention relates to a ball valve washer structure. In particular, the ball valve is used in combination, and the shape of the ring-shaped steel plate and the ring-shaped graphite sheet of the ring-shaped sliding unit is used, thereby improving the slip property and extending the service life. The present invention relates to a ball valve washer structure that is easy to extend and replace and has a short manufacturing time.

  Conventional ball valve washers have been placed between the valve and the ball in order to increase slip. Conventional washers include two types of forms: a form made of a non-metallic material and a form made of a metallic material.

  The above-described washer made of a non-metallic material has low strength and rigidity, and thus may be damaged when used in a high temperature and high pressure state. On the other hand, a washer made of a metal material can improve the disadvantages of a washer made of a non-metallic material. However, when the washer is made of a metal material, a rigid friction is generated between the washer and the ball, resulting in wear of the washer and the ball. May end up. In that case, it is not sufficient to replace the washer alone, and it is necessary to replace the washer and the ball together in order to maintain airtightness. In addition, washers made of non-metallic or metallic materials can be manufactured with increased slipping performance, extending the service life of the washers, and making it difficult to replace the washers. The time may be longer.

  Therefore, there has been a demand for a ball valve washer structure that enhances the slip property, extends the service life, is easy to replace and has a short manufacturing time.

  The purpose of the present invention is to use a ball valve in combination, and by utilizing the shape of the ring-shaped steel plate and ring-shaped graphite sheet of the ring-shaped sliding unit, it enhances the slip property, extends the service life, and is easy to replace. The object is to provide a ball valve washer structure with a short production time.

  In order to solve the above-described problem, according to a first embodiment of the present invention, a ball valve washer structure including a housing, a leak-proof washer, a ring-shaped sliding unit, and a cover, the housing is provided around the periphery. A storage area and a position restriction area provided on the bottom surface, wherein the leak-proof washer is disposed in the position restriction area on the bottom surface of the housing, and the ring-shaped sliding unit is disposed in the storage area. A plurality of ring-shaped steel plates and a ring-shaped graphite sheet, which are disposed in the stack and sequentially stacked on each other, the ring-shaped steel plates are disposed on the top and bottom of the ring-shaped sliding unit, and the ring-shaped disposed on the bottom A steel plate is brought into contact with the bottom of the storage area, an arc surface portion is formed on the inner edge of the ring-shaped sliding unit, and the cover is coupled to the housing in front. The ring-shaped sliding unit is sealed, the outer wall edge of the storage area provided on the top surface is bent and engaged, and the bottom surface is contacted with the ring-shaped steel plate provided on the top of the ring-shaped sliding unit. A ball valve washer structure is provided that contacts.

  In addition, a concave arc surface is formed on the inner edge of each of the ring-shaped steel plate and the ring-shaped graphite sheet, and the ring-shaped steel plate and the ring-shaped graphite sheet are laminated to bond the adjacent concave arc surfaces to each other. Preferably, the arc surface portion is formed on the inner edge of the ring-shaped sliding unit.

  Further, it is preferable that a concave area is provided around the outer peripheral edge of the top surface of the cover, and an outer wall edge of the storage area is bent and engaged with the concave area.

  The ball valve washer structure of the present invention is used in combination with a ball valve, and by utilizing the shape of the ring-shaped steel plate and ring-shaped graphite sheet of the ring-shaped sliding unit, the slip property is increased, the service life is extended, and replacement is performed. Is easy and production time is short.

1 is an exploded perspective view showing a ball valve washer structure according to an embodiment of the present invention. 1 is a perspective view showing a ball valve washer structure according to an embodiment of the present invention. FIG. 3 is a cross-sectional view taken along line AA in FIG. 2. It is a perspective view which shows the arc surface part which concerns on one Embodiment of this invention. FIG. 5 is a sectional view taken along line BB in FIG. 4. It is sectional drawing which shows a state when using the ball valve washer structure which concerns on one Embodiment of this invention.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. Note that the present invention is not limited thereby.

  Please refer to FIG. FIG. 1 is an exploded perspective view showing a ball valve washer structure according to an embodiment of the present invention. FIG. 2 is a perspective view showing a ball valve washer structure according to an embodiment of the present invention. FIG. 3 is a cross-sectional view taken along line AA in FIG. FIG. 4 is a perspective view showing an arc surface portion according to an embodiment of the present invention. FIG. 5 is a cross-sectional view taken along line BB in FIG. FIG. 6 is a cross-sectional view showing a state when using a ball valve washer structure according to an embodiment of the present invention.

  As shown in FIGS. 1 to 6, the ball valve washer structure according to an embodiment of the present invention includes at least a housing 1, a leak-proof washer 2, a ring-shaped sliding unit 3, and a cover 4.

  A storage area 11 is provided around the housing 1 described above. A position restriction area 12 is provided around the bottom surface of the housing 1.

  The leak-proof washer 2 is disposed in a position regulation area 12 provided on the bottom surface of the housing 1.

  The ring-shaped sliding unit 3 includes a plurality of ring-shaped steel plates 31 and a ring-shaped graphite sheet 32 that are disposed in the storage area 11 and are sequentially stacked, and ring-shaped steel plates are provided at the top and bottom of the ring-shaped sliding unit 3. 31 is provided, and the ring-shaped steel plate 31 provided at the bottom is brought into contact with the bottom of the storage area 11.

  The cover 4 is coupled to the housing 1 and used for sealing the ring-shaped sliding unit 3. The cover 4 is provided with a concave area 41 around the outer peripheral edge of the top surface, the outer wall edge of the storage area 11 provided on the top surface is bent and engaged with the concave area 41, and the top of the ring-shaped sliding unit 3. The bottom surface is brought into contact with the ring-shaped steel plate 31 provided on the surface.

  When manufacturing this embodiment, first, each ring-shaped steel plate 31 and the ring-shaped graphite sheet 32 are sequentially laminated and pressed together to form the ring-shaped sliding unit 3, and a ring is formed between the two ring-shaped steel plates 31. After placing the graphite sheet 32 and providing the ring-shaped steel plate 31 at the top and bottom of the ring-shaped sliding unit 3, the ring-shaped sliding unit 3 is installed in the storage area 11, and the ring-shaped steel plate provided at the bottom. 31 is brought into contact with the bottom of the storage area 11, and then the bottom surface of the cover 4 is brought into contact with the ring-shaped steel plate 31 at the top of the ring-shaped sliding unit 3, and the outer wall edge 111 of the storage area 11 is bent to form a concave shape. By engaging on the area 41, the cover 4 and the housing 1 are combined to seal the ring-shaped sliding unit 3 in the storage area 11. And finally, the inner edges of the ring-shaped sliding unit 3 are adjacent to each other by forming the inner edges of the ring-shaped steel sheet 31 and the ring-shaped graphite sheet 32 into the concave arc surfaces 311 and 321 using a milling machine or a lathe. Since the concave arc surfaces 311 and 321 are joined to form the arc surface portion 33 (see FIGS. 4 and 5), the assembly is easy and can be manufactured in a short time. Therefore, when the ball valve 5 is used in combination (see FIG. 6), the washer of the present embodiment is installed between the valve 51 and the ball 52 of the ball valve 5, and the position restriction area 12 and the valve 51 of the housing 1 are The leakage washer 2 is arranged between the ring-shaped sliding units 3 and the ring-shaped steel sheet 31 and the ring-shaped graphite sheet 32 provided in the ring-shaped sliding unit 3 can be combined to increase the rotational slip property by the balls 52. The washer 2 prevents the gas or liquid passing through the ball valve 5 from leaking and can improve the airtightness. Moreover, since the ring-shaped graphite sheet 32 has wear resistance, heat resistance, and deformation resistance, the service life can be extended, and after a certain period of use, the washer can be replaced directly as necessary. Can do.

  As can be seen from the above description, the ball valve washer structure of the present invention uses a combination of ball valves and uses the shape of the ring-shaped steel plate and ring-shaped graphite sheet of the ring-shaped sliding unit to improve the slip property. The service life can be extended to increase the service life, making it easy to replace and shortening the production time.

  The preferred embodiments of the present invention have been disclosed as described above so that those skilled in the art can understand them, but these do not limit the present invention in any way. Various changes and modifications can be made without departing from the spirit and scope of the present invention. Accordingly, the scope of the utility model registration claim of the present invention should be broadly interpreted including such changes and modifications.

  DESCRIPTION OF SYMBOLS 1 Housing, 2 Leak-proof washer, 3 Ring-shaped sliding unit, 4 Cover, 5 Ball valve, 11 Storage area, 12 Position control area, 31 Ring-shaped steel plate, 32 Ring-shaped graphite sheet, 33 Arc surface part, 41 Recessed area, 51 bulb, 52 ball, 111 outer wall edge, 311 concave arc surface, 321 concave arc surface.

Claims (3)

A ball valve washer structure having a housing, a leak-proof washer, a ring-shaped sliding unit and a cover,
The housing has a surrounding storage area and a position restriction area around the bottom surface,
The leak-proof washer is disposed in the position regulation area on the bottom surface of the housing,
The ring-shaped sliding unit includes a plurality of ring-shaped steel plates and a ring-shaped graphite sheet that are disposed in the storage area and are sequentially stacked on each other, and the ring-shaped steel plates are on the top and bottom of the ring-shaped sliding unit. Disposed, the ring-shaped steel plate disposed at the bottom is brought into contact with the bottom of the storage area, an arc surface portion is formed on the inner edge of the ring-shaped sliding unit,
The cover is coupled to the housing to seal the ring-shaped sliding unit, and the outer wall edge of the storage area provided on the top surface is bent and engaged, and the cover is attached to the top of the ring-shaped sliding unit. A ball valve washer structure, wherein a bottom surface is brought into contact with the provided ring-shaped steel plate.   Concave arc surfaces are respectively formed on the inner edges of the ring-shaped steel sheet and the ring-shaped graphite sheet, and the ring-shaped steel sheets and the ring-shaped graphite sheet are laminated to combine adjacent concave arc surfaces, The ball valve washer structure according to claim 1, wherein the arc surface portion is formed at an inner edge of the ring-shaped sliding unit. A concave area is provided around the outer periphery of the top surface of the cover,
The ball valve washer structure according to claim 2, wherein an outer wall edge of the storage area is bent and engaged with the concave area.

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