CN215059651U

CN215059651U - Central ceramic dome valve

Info

Publication number: CN215059651U
Application number: CN202120358190.XU
Authority: CN
Inventors: 吴文福; 郑梅片; 赖徽文
Original assignee: Kalfasci Holding Group Co ltd
Current assignee: Kalfasci Holding Group Co ltd
Priority date: 2021-02-07
Filing date: 2021-02-07
Publication date: 2021-12-07
Anticipated expiration: 2031-02-07

Abstract

The utility model relates to a dome valve technical field, in particular to a central ceramic dome valve, which comprises a valve body, shaft holes are respectively arranged at two ends of the valve body, a valve shaft and a valve rod are respectively arranged in the two shaft holes, a gap is arranged at the upper end of the valve body, a fan-shaped cylinder is arranged at one end of the valve body, the output end of the fan-shaped cylinder is connected with one end of the valve rod, a valve clack is in an arch structure, through holes are arranged at two ends of the valve clack, one end of the valve shaft and one end of the valve rod far away from the fan-shaped cylinder are respectively inserted in the two through holes, a gland and a gland are screwed on the upper end of the valve clack, and the problems that when the existing valve body is used, parts or the valve body are blocked and cracked due to hard contact between the parts of the valve body are easily caused, and when the traditional valve body is opened or closed by the rotation of the valve body, the valve body is easy to generate the situations of blocking and the valve body has the characteristics of obvious abrasion resistance and corrosion resistance, long service life and simpler and more convenient equipment maintenance.

Description

Central ceramic dome valve

Technical Field

The utility model belongs to the technical field of the dome valve technique and specifically relates to a central type pottery dome valve is related to.

Background

Valves are accessories for pipelines for opening and closing the pipeline, controlling flow direction, regulating and controlling parameters of the conveyed medium, and can be classified into shut-off valves, check valves, regulating valves, and the like according to their functions. The valve is a control part in a fluid conveying system, has the functions of stopping, adjusting, guiding, preventing counter flow, stabilizing pressure, shunting or overflowing and relieving pressure and the like, and comprises a dome valve, a butterfly valve, a lifting valve and the like.

Whereas the dome valve is unique in that: the device can cut off flowing material flow or static material column entering the pressure tank, and then close to realize sealing, thereby ensuring that the filling rate of the pressure tank is 100 percent, and the device does not need to depend on a material level meter of a sending tank, so the control principle is simple and reliable.

However, the conventional dome valve has the disadvantages that the parts inside the valve body are extruded and attached, when the dome valve is used, the parts or the valve body are easily blocked and cracked due to hard contact when the valve body is opened and closed, and the conventional valve body is easily blocked when the valve clack is rotated to open or close.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to lack effectual pretension compensating mechanism between the valve body part of current to the easy problem of the easy stifled thing of spare part extrusion fracture problem and valve appears when using, to the problem that prior art exists, provide a central type pottery dome valve.

In order to solve the prior art problem, the utility model discloses a center type ceramic dome valve, which comprises a valve body, wherein shaft holes are respectively arranged at two ends of the valve body, a valve shaft and a valve rod are respectively arranged inside the two shaft holes, and a notch is arranged at the upper end of the valve body;

the fan-shaped air cylinder is arranged at one end of the valve body, and the output end of the fan-shaped air cylinder is connected with one end of the valve rod;

the valve clack is of an arch structure, through holes are formed in two ends of the valve clack, and one end of the valve shaft and one end of the valve rod, which are far away from the fan-shaped cylinder, are respectively inserted into the two through holes;

the gland is in threaded connection with the upper end of the valve clack;

the valve cover is arranged in the gap and seals the gap, and a valve port is formed between two ends of the valve cover and two ends of the valve clack;

the valve seat is arranged in the valve port, and the outer side of the hemisphere is provided with a tangent plane;

the end part of the gap is positioned in the valve body, a valve seat opening is formed in the valve body, the valve seat opening is communicated with the gap, the valve seat is accommodated in the valve seat opening, and one end of the bottom of the valve seat is abutted to the tangent plane;

and the sealing ring is clamped between the end part of the valve seat and the inner wall of the valve seat opening.

Preferably, a bearing is sleeved outside one end of the valve shaft, and the valve shaft is connected with the shaft hole through the bearing.

Preferably, a flat key is arranged at one end of the valve rod, which is far away from the fan-shaped cylinder, and one end of the valve shaft.

Preferably, an oil cup is arranged at the upper end of the shaft hole and positioned on the surface of the valve body, and the end part of the oil cup is communicated with the shaft hole.

Preferably, screw holes are formed in the interior of the pressing cover and in the upper end of the valve clack, and the pressing cover and the valve clack are tightly matched through the screw holes in a penetrating mode through screws.

Preferably, the bottom both ends of gland have seted up the lug, the upper end both sides of hemisphere are equipped with the notch that the lug matches each other.

Preferably, a connecting rod is arranged between the end part of the valve rod and the fan-shaped cylinder, the valve body is connected with the fan-shaped cylinder through the connecting rod, a support is fixedly arranged at the end part of the valve body outside the connecting rod, an oil cavity is formed between the inside of the support and the outside of the connecting rod, and an oil seal is arranged between one end of the connecting rod and the oil cavity.

Preferably, the sealing washer is "O" type rubber circle, the disk seat be close to two annular have been seted up to the one end of valve seat mouth, the sealing washer sets up the inside of annular.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model discloses the both ends of valve gap with be formed with the valve port between the both ends of valve clack, the inside at the valve port is established to the hemisphere simultaneously, and the hemisphere passes through the laminating of the bottom tangent plane of outside tangent plane and disk seat, be favorable to hemisphere and disk seat to be connected and the separation like this, the tangent plane can improve the two and connect the leakproofness simultaneously, avoid the valve to reveal, the disk seat tip passes through the sealing washer and is connected with the internal wall of disk seat mouth simultaneously, can utilize the elastic buffer effect of sealing washer, make hemisphere and disk seat have certain movement clearance, when the valve plate is opened or is closed, hemisphere and disk seat hard contact and lead to the valve body card to block the fracture, the valve clack adopts the arch structure design, when the calotte valve that the material filled up completely, also can pass and fill up the material and close and seal, avoid the valve body to block up.

Drawings

Fig. 1 is an overall sectional view of the present invention;

fig. 2 is an enlarged view of a structure a in fig. 1 according to the present invention.

The labels in the figure are: 1. a valve shaft cover; 2. a bearing; 3. flattening the cushion; 4. an oil cup; 5. a valve shaft; 6. oil sealing; 7. a flat bond; 8. a gland; 9. a valve cover; 10. a valve flap; 11. a hemisphere; 12. a valve seat; 13. a valve body; 14. a valve stem; 15. a seal ring; 16. a support; 17. a valve stem cap; 18. a connecting rod; 19. a sector cylinder; 111. cutting into noodles; 112. a notch opening.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention more clearly understood, the present invention will be described in further detail with reference to the accompanying drawings and detailed description. It should be noted that the embodiments and features of the embodiments of the present invention may be combined with each other without conflict.

Referring to fig. 1-2, a center type ceramic dome valve includes a valve body 13, two ends of the valve body 13 are respectively provided with a shaft hole, the insides of the two shaft holes are respectively provided with a valve shaft 5 and a valve rod 14, and the upper end of the valve body 13 is provided with a notch;

the fan-shaped cylinder 19 is arranged at one end of the valve body 13, and the output end of the fan-shaped cylinder 19 is connected with one end of the valve rod 14;

the valve comprises a valve clack 10, wherein the valve clack 10 is of an arch structure, through holes are formed in two ends of the valve clack 10, and one end of a valve shaft 5, which is far away from a shaft hole, and one end of a valve rod 14, which is far away from a fan-shaped cylinder 19, are respectively inserted into the two through holes;

the gland 8 is in threaded connection with the upper end of the valve clack 10;

the valve cover 9 is arranged in the gap and seals the gap, and a valve port is formed between two ends of the valve cover 9 and two ends of the valve clack 10;

the valve comprises a hemisphere 11, wherein the hemisphere 11 is arranged inside a valve port, and the outer side of the hemisphere 11 is provided with a tangent plane 111;

a valve seat 12, wherein a valve seat opening is formed in the end part of the gap, which is positioned in the valve body 13, the valve seat opening is communicated with the gap, the valve seat 12 is accommodated in the valve seat opening, and one end of the bottom of the valve seat 12 is abutted against the tangent plane 111;

and the sealing ring 15 is clamped between the end part of the valve seat 12 and the inner wall of the valve seat opening.

In order to reduce the contact friction force of the valve shaft 5 in the shaft hole, as shown in fig. 1, a bearing 2 is sleeved outside one end of the valve shaft 5, and the valve shaft 5 is connected with the shaft hole through the bearing 2.

In order to connect the valve flap 10 with the valve rod 14 and the valve shaft 14, as shown in fig. 1, a flat key 7 is provided at one end of the valve rod 14 away from the fan cylinder 19 and at one end of the valve shaft 5.

In order to reduce the contact friction force between the parts, as shown in fig. 1, an oil cup 4 is arranged on the surface of the valve body 13 at the upper end of the shaft hole, and the end part of the oil cup 4 is communicated with the shaft hole.

In order to facilitate the installation of the pressing cover 8 on the valve clack 10 and the disassembly and assembly between the valve clack 10 and the pressing cover 8, as shown in fig. 1, screw holes are formed in the pressing cover 8 and the upper end of the valve clack 10, and the pressing cover 8 and the valve clack 10 are tightly matched through the screw holes by screws.

In order to enhance the sealing performance between the gland 8 and the hemisphere 11, as shown in fig. 1, the two ends of the bottom of the gland 8 are provided with a convex block, the two sides of the upper end of the hemisphere 11 are provided with a groove 112 matched with the convex block, and the sealing performance between the gland 8 and the hemisphere 11 is effectively enhanced by the arrangement of the groove 112 and the convex block, so that the two are more compact when being matched, and meanwhile, the valve is conveniently disassembled and maintained.

In order to facilitate connection and transmission between the fan-shaped cylinder 19 and the valve rod 14 and separation between the valve rod 14 and the fan-shaped cylinder 19, as shown in fig. 1, a connecting rod 18 is arranged between the end of the valve rod 14 and the fan-shaped cylinder 19, the valve body 13 and the fan-shaped cylinder 19 are connected through the connecting rod 18, a support 16 is fixedly arranged at the end of the valve body 13 outside the connecting rod 18, an oil cavity is formed between the inside of the support 16 and the outside of the connecting rod 18, an oil seal 6 is arranged between one end of the connecting rod 18 and the oil cavity, and the fan-shaped cylinder 19 is conveniently detached due to the arrangement of the connecting rod 18.

In order to improve the sealing force between the valve seat 12 and the valve seat opening, and simultaneously, the valve seat 12 has a certain elastic moving space between the valve seat opening, so that the valve seat 12 and the hemisphere 11 are connected more tightly, as shown in fig. 1, the sealing ring 15 is an O-shaped rubber ring, two annular grooves are formed in one end of the valve seat 12 close to the valve seat opening, and the sealing ring 15 is arranged inside the annular grooves.

Further, the tip cover of valve shaft 5 is equipped with valve shaft cover 1, adopt the screw to run through between this valve shaft cover 1 and the valve body 13 and link to each other, setting through valve shaft cover 1, the maintenance is dismantled to valve shaft 5 to the convenience, and this 1 of valve shaft is connected with valve body 13 when, can connect out at the two and increase flat pad 3, further improve and be connected the leakproofness between shaft cover 1 and the valve body 13, can add at the 14 tip of valve rod and establish valve rod cover 17 in the same reason, valve rod cover 17 is the same with the other end spiro union of valve body 13, be favorable to dismantling the maintenance to valve rod 14.

Specifically, during the use, the utility model discloses valve clack 10 adopts the arch structure design, when the calotte valve that the material was filled up completely, also can pass the material that is filled up and close and seal, avoid the valve body to block up, sealing washer 15 of O type structure, compensation has, avoid ceramic seal because of opening and close, appear blocking between hemisphere 11 and the valve seat 12 and lead to the valve body part fracture, be formed with the valve port between the both ends of valve gap 9 and the both ends of valve clack 10, hemisphere 11 establishes the inside at the valve port simultaneously, and hemisphere 11 passes through the bottom tangent plane laminating of outside tangent plane 111 with valve seat 12, be favorable to the connection and the separation of part like this, valve seat 12 tip passes through sealing washer 15 and is connected with the valve seat mouth inner wall simultaneously, ceramic calotte valve make full use of ceramic material's wearability and corrosion resistance, have apparent stand wear and corrosion resistance characteristics, long service life, compare in rubber soft seal calotte valve, has the advantages of better temperature resistance and simpler and more convenient equipment maintenance.

The present invention has been described in relation to the above embodiments, which are only examples for implementing the present invention. It should be noted that the disclosed embodiments do not limit the scope of the invention. On the contrary, all changes and modifications which do not depart from the spirit and scope of the present invention are deemed to fall within the scope of the present invention.

Claims

1. The central ceramic dome valve is characterized by comprising a valve body (13), wherein shaft holes are respectively formed in two ends of the valve body (13), a valve shaft (5) and a valve rod (14) are respectively arranged in the two shaft holes in a penetrating manner, and a notch is formed in the upper end of the valve body (13);

the fan-shaped air cylinder (19) is arranged at one end of the valve body (13), and the output end of the fan-shaped air cylinder (19) is connected with one end of the valve rod (14);

the valve rod (5) is connected with the fan-shaped cylinder (19) in an inserted manner, the valve rod (14) is connected with the valve rod (10) in an inserted manner, and the valve rod (10) is connected with the fan-shaped cylinder (19) in an inserted manner;

the gland (8), the said gland (8) is screwed on the upper end of the said valve flap (10);

the valve cover (9) is arranged inside the gap and seals the gap, and a valve port is formed between two ends of the valve cover (9) and two ends of the valve clack (10);

the hemisphere (11), the said hemisphere (11) is set up in the said valve port, the outside of the said hemisphere (11) offers the tangent plane (111);

the end part of the gap is positioned in the valve body (13) and is provided with a valve seat opening, the valve seat opening is communicated with the gap, the valve seat (12) is accommodated in the valve seat opening, and one end of the bottom of the valve seat (12) is abutted against the tangent plane (111);

and the sealing ring (15) is clamped between the end part of the valve seat (12) and the inner wall of the valve seat opening.

2. A central ceramic dome valve as set forth in claim 1 wherein: the bearing (2) is sleeved outside one end of the valve shaft (5), and the valve shaft (5) is connected with the shaft hole through the bearing (2).

3. A central ceramic dome valve as set forth in claim 1 wherein: one end of the valve rod (14) far away from the fan-shaped cylinder (19) and one end of the valve shaft (5) are both provided with flat keys (7).

4. A central ceramic dome valve as set forth in claim 1 wherein: the upper end of the shaft hole is located on the surface of the valve body (13) and is provided with an oil cup (4), and the end part of the oil cup (4) is communicated with the shaft hole.

5. A central ceramic dome valve as set forth in claim 1 wherein: screw holes are formed in the inner portion of the gland (8) and the upper end of the valve clack (10), and the gland (8) is tightly matched with the valve clack (10) through the screw holes in a penetrating mode.

6. A central ceramic dome valve as set forth in claim 1 wherein: the bottom both ends of gland (8) are seted up the lug, the upper end both sides of hemisphere (11) are equipped with notch (112) that the lug matches each other.

7. A central ceramic dome valve as set forth in claim 1 wherein: valve rod (14) tip with be equipped with connecting rod (18) between fan-shaped cylinder (19), pass through between valve body (13) and fan-shaped cylinder (19) connecting rod (18) are connected, the outside of connecting rod (18) is located valve body (13) tip has set firmly support (16), support (16) inside with be equipped with the oil pocket between connecting rod (18) outside, connecting rod (18) one end with be equipped with oil blanket (6) between the oil pocket.

8. A central ceramic dome valve as set forth in claim 1 wherein: sealing washer (15) are "O" type rubber circle, being close to of disk seat (12) two annulars have been seted up to the one end of disk seat mouth, sealing washer (15) set up the inside of annular.