CN214425158U - Right-angle stop valve with double-closed structure - Google Patents
Right-angle stop valve with double-closed structure Download PDFInfo
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- CN214425158U CN214425158U CN202120599182.4U CN202120599182U CN214425158U CN 214425158 U CN214425158 U CN 214425158U CN 202120599182 U CN202120599182 U CN 202120599182U CN 214425158 U CN214425158 U CN 214425158U
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Abstract
The utility model relates to a right-angle stop valve with a double-closed structure, which comprises a valve body, a valve rod, a plunger, an inlet valve seat, a valve core and an outlet valve seat, wherein a spherical cavity is arranged in the middle of the valve body, an inlet channel is arranged in the valve body in the middle of the lower end of the cavity, an outlet channel communicated with the spherical cavity is arranged on one transverse side of the valve body to form a right-angle conveying channel, the plunger is fixedly arranged on the lower end of the valve rod coaxially, and the plunger rotates and goes up and down along with the valve rod; an inlet valve seat is arranged on the inner edge of the inlet channel of the valve body, which is in contact with the plunger and can be in sealing contact with the plunger; a hemispherical valve core is arranged in the middle of the valve rod in a limiting way, and the valve core synchronously rotates along with the valve rod and cannot move up and down; an outlet valve seat is arranged on the inner edge of the outlet channel of the valve body contacted with the valve core. The utility model discloses simple structure is reliable, and the practicality is strong, adopts plunger and spherical case shutoff right angle type stop valve's access way and exit channel respectively, and dual closed effect is better, and spherical case and plunger unhurried current regulation convenience, the control flow of being convenient for.
Description
Technical Field
The utility model belongs to the valve field, especially a right angle type stop valve of two enclosed construction.
Background
The right-angle stop valve is widely applied to the fields of petroleum, petrochemical oil and gas pipelines, and the inner cavity space of the valve body is larger because the inner flow channel of the valve body is of a right-angle special structure, so that the sealing effect of a single valve core of the conventional valve is general, and particularly, in the long-term use process, the sealing effect is reduced, and the problem of poor sealing is easily caused.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome prior art's weak point, provide a design science, simple structure, be convenient for operation, the right angle type stop valve of the double-seal structure of raising efficiency.
The utility model provides a its technical problem take following technical scheme to realize:
the utility model provides a two enclosed construction's right angle type stop valve, includes valve body, valve rod, plunger, entry disk seat, case and export disk seat, and the system has spherical cavity in the middle part of the valve body, and the valve body system at cavity lower extreme middle part has inlet channel, and horizontal one side system of valve body has the exit channel who communicates with spherical cavity, forms the transfer passage of right angle type, its characterized in that: the lower end of the valve rod is coaxially and fixedly provided with a plunger piston which rotates and goes up and down along with the valve rod; an inlet valve seat is arranged on the inner edge of the inlet channel of the valve body, which is in contact with the plunger and can be in sealing contact with the plunger; a hemispherical valve core is arranged in the middle of the valve rod in a limiting way, and the valve core synchronously rotates along with the valve rod and cannot move up and down; an outlet valve seat is arranged on the inner edge of the outlet channel of the valve body contacted with the valve core.
The valve core main body is of a hollow hemispherical structure, the protruding direction of the spherical surface is vertical to the valve rod, coaxial through holes are formed in the upper end and the lower end of the valve core and used for the valve rod to penetrate through up and down, key grooves are formed in the radial sides of the inner walls of the through holes in the upper end and the lower end of the valve core and correspond to flat keys arranged on the valve rod in a limiting connection mode, and the valve rod can drive the valve core to rotate synchronously when rotating; the axial length of the key groove is greater than that of the flat key, and the flat key can slide up and down in the key groove; a limiting sleeve is arranged between the upper end of the valve core and the valve rod in a limiting mode, and an inner shoulder is arranged at the lower end of the limiting sleeve to limit the valve core to rotate only but not to move up and down.
The upper end of the valve body is fixedly provided with a valve cover, a vertical valve rod is arranged in the valve body, the upper part of the valve rod penetrates through the valve body and the valve cover, a driver or a handle is arranged on the valve rod above the valve cover, and the valve rod is controlled to rotate so as to move up and down; the lower part of the valve cover contacted with the valve rod is provided with an internal thread matched with the valve rod, and the inner side of the valve cover above the internal thread is provided with a sealing filler.
And the middle part of the plunger is provided with an O-shaped sealing ring to further ensure the sealing property.
And the lower end surface of the plunger is provided with a conical flow distribution end surface.
And a spring is arranged between the valve seat and the valve body to ensure the contact sealing of the valve seat and the valve core.
The utility model has the advantages that:
the utility model discloses simple structure is reliable, and the practicality is strong, adopts plunger and spherical case shutoff right angle type stop valve's access way and exit channel respectively, and dual closed effect is better, and spherical case and plunger unhurried current regulation convenience, the control flow of being convenient for.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
fig. 2 is a partially enlarged view of a portion a in fig. 1;
fig. 3 is a partially enlarged view of portion B in fig. 1.
Detailed Description
The present invention will be described in further detail with reference to the following embodiments, which are illustrative, not restrictive, and the scope of the invention should not be limited thereto.
A right-angle stop valve with a double-closed structure comprises a valve body 6, a valve rod 4, a plunger 7, an inlet valve seat 8, a valve core 5 and an outlet valve seat 9, wherein a spherical cavity is arranged in the middle of the valve body, an inlet channel is arranged in the middle of the lower end of the cavity, an outlet channel communicated with the spherical cavity is arranged on one transverse side of the valve body to form a right-angle conveying channel 12,
the upper end of the valve body is fixedly provided with a valve cover 3, a vertical valve rod 4 is arranged in the valve body, the upper part of the valve rod penetrates through the valve body and the valve cover, a driver 1 or a handle is arranged on the valve rod above the valve cover, and the valve rod is controlled to rotate so as to move up and down; the lower part of the valve cover contacted with the valve rod is provided with an internal thread matched with the valve rod, and the inner side of the valve cover above the internal thread is provided with a sealing filler 2.
A plunger 7 is coaxially and fixedly arranged at the lower end of the valve rod and moves up and down along with the valve rod; an inlet valve seat 8 is arranged on the inner edge of the inlet channel of the valve body, which is in contact with the plunger, and can be in sealing contact with the plunger to match and block the inlet; an O-shaped sealing ring 16 is arranged in the middle of the plunger piston to further ensure the sealing property. The lower end face of the plunger is provided with a conical shunting end face, and the plunger is shunted in the opening process to relieve impact and has long service life.
A hemispherical valve core 5 is arranged in the middle of the valve rod in a limiting way, and the valve core synchronously rotates along with the valve rod and cannot move up and down; an outlet valve seat 9 is arranged on the inner edge of the outlet channel of the valve body contacted with the valve core, and a spring 10 is arranged between the valve seat and the valve body to ensure the contact sealing of the valve seat and the valve core. The valve core closes the passage when rotating to the coaxial contact position of the outlet passage.
The valve core main body is of a hollow hemispherical structure, the protruding direction of the spherical surface 11 is vertical to the valve rod, coaxial through holes are formed in the upper end and the lower end of the valve core and used for the valve rod to penetrate through up and down, key grooves 14 are formed in the radial sides of the inner walls of the through holes in the upper end and the lower end of the valve core and correspond to flat keys 13 arranged on the valve rod in a limiting connection mode, and the valve rod can drive the valve core to rotate synchronously when rotating; the axial length of the key groove is greater than that of the flat key, and the flat key can slide up and down in the key groove; a limiting sleeve 15 is arranged between the upper end of the valve core and the valve rod in a limiting mode, and an inner shoulder is arranged at the lower end of the limiting sleeve to limit the valve core to rotate only but not to move up and down.
Although the embodiments of the present invention and the accompanying drawings are disclosed for illustrative purposes, those skilled in the art will appreciate that: various substitutions, changes and modifications are possible without departing from the spirit and scope of the present invention and the appended claims, and therefore, the scope of the present invention is not limited to the disclosure of the embodiments and the accompanying drawings.
Claims (6)
1. The utility model provides a two enclosed construction's right angle type stop valve, includes valve body, valve rod, plunger, entry disk seat, case and export disk seat, and the system has spherical cavity in the middle part of the valve body, and the valve body system at cavity lower extreme middle part has inlet channel, and horizontal one side system of valve body has the exit channel who communicates with spherical cavity, forms the transfer passage of right angle type, its characterized in that: the lower end of the valve rod is coaxially and fixedly provided with a plunger piston which rotates and goes up and down along with the valve rod; an inlet valve seat is arranged on the inner edge of the inlet channel of the valve body, which is in contact with the plunger and can be in sealing contact with the plunger; a hemispherical valve core is arranged in the middle of the valve rod in a limiting way, and the valve core synchronously rotates along with the valve rod and cannot move up and down; an outlet valve seat is arranged on the inner edge of the outlet channel of the valve body contacted with the valve core.
2. A right-angle shut-off valve of double-closure structure as defined in claim 1, wherein: the valve core main body is of a hollow hemispherical structure, the protruding direction of the spherical surface is vertical to the valve rod, coaxial through holes are formed in the upper end and the lower end of the valve core and used for the valve rod to penetrate through up and down, key grooves are formed in the radial sides of the inner walls of the through holes in the upper end and the lower end of the valve core and correspond to flat keys arranged on the valve rod in a limiting connection mode, and the valve rod can drive the valve core to rotate synchronously when rotating; the axial length of the key groove is greater than that of the flat key, and the flat key can slide up and down in the key groove; a limiting sleeve is arranged between the upper end of the valve core and the valve rod in a limiting mode, and an inner shoulder is arranged at the lower end of the limiting sleeve to limit the valve core to rotate only but not to move up and down.
3. A right-angle shut-off valve of double-closure structure as defined in claim 1, wherein: the upper end of the valve body is fixedly provided with a valve cover, a vertical valve rod is arranged in the valve body, the upper part of the valve rod penetrates through the valve body and the valve cover, a driver or a handle is arranged on the valve rod above the valve cover, and the valve rod is controlled to rotate so as to move up and down; the lower part of the valve cover contacted with the valve rod is provided with an internal thread matched with the valve rod, and the inner side of the valve cover above the internal thread is provided with a sealing filler.
4. A right-angle shut-off valve of double-closure structure as defined in claim 1, wherein: and an O-shaped sealing ring is arranged in the middle of the plunger piston to further ensure the sealing property.
5. A right-angle shut-off valve of double-closure structure as defined in claim 1, wherein: the lower end surface of the plunger is provided with a conical shunting end surface.
6. A right-angle shut-off valve of double-closure structure as defined in claim 1, wherein: and a spring is arranged between the valve seat and the valve body to ensure that the valve seat is in contact seal with the valve core.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120599182.4U CN214425158U (en) | 2021-03-24 | 2021-03-24 | Right-angle stop valve with double-closed structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120599182.4U CN214425158U (en) | 2021-03-24 | 2021-03-24 | Right-angle stop valve with double-closed structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214425158U true CN214425158U (en) | 2021-10-19 |
Family
ID=78074756
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120599182.4U Active CN214425158U (en) | 2021-03-24 | 2021-03-24 | Right-angle stop valve with double-closed structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214425158U (en) |
-
2021
- 2021-03-24 CN CN202120599182.4U patent/CN214425158U/en active Active
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