CN215891186U - Electric bottom valve sealing structure - Google Patents
Electric bottom valve sealing structure Download PDFInfo
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- CN215891186U CN215891186U CN202122108904.4U CN202122108904U CN215891186U CN 215891186 U CN215891186 U CN 215891186U CN 202122108904 U CN202122108904 U CN 202122108904U CN 215891186 U CN215891186 U CN 215891186U
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Abstract
The utility model relates to an electric bottom valve sealing structure which comprises a valve body, a plunger, a screw rod, a motor, an inner sleeve, an upper sealing assembly, a support sleeve, a lower sealing ring and a spacer ring, wherein the plunger is vertically and coaxially arranged in the valve body and can move up and down; a supporting sleeve is coaxially arranged in the valve body below the inner sleeve, three lower sealing rings are arranged between the supporting sleeve and the plunger piston, spacing rings are arranged between the adjacent sealing rings, and another spacing ring is arranged between the axial contact surfaces of the sealing rings and the supporting sleeve. The structure of the utility model can keep good sealing performance in use, the sealing structure is not damaged, and the service life is prolonged, thereby improving the overall production efficiency, and being safe and reliable.
Description
Technical Field
The utility model belongs to the technical field of sealing structures, and particularly relates to a sealing structure of an electric bottom valve.
Background
In the chemical industry production line, work in the steam environment of high temperature, high corrosivity, the seal structure of electronic bottom valve is easy to be out of shape in long-term reciprocating motion and the friction repeatedly, and sealed effect is especially important, guarantees that inside solvent or steam can not leak outward, and conventional seal structure life is short, needs frequent maintenance, change, and the maintenance cost is high, wastes time and energy, has the potential safety in production.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects in the prior art and provides the electric bottom valve sealing structure which is simple in structure, reasonable in design, safe, reliable and long in service life.
The technical problem to be solved by the utility model is realized by adopting the following technical scheme:
the utility model provides an electronic bottom valve seal structure, includes valve body, plunger, lead screw, motor, endotheca, goes up seal assembly, supports cover, lower sealing ring and spacer ring, and vertical coaxial arrangement has the plunger in the valve body, and the plunger can reciprocate its characterized in that: an inner sleeve is coaxially arranged in the valve body, a sealing assembly is arranged between the valve body above the inner sleeve and the plunger, and a gland is coaxially arranged on the valve body above the upper sealing assembly in a limiting way; a supporting sleeve is coaxially arranged in the valve body below the inner sleeve, three lower sealing rings are arranged between the supporting sleeve and the plunger piston, spacing rings are arranged between the adjacent sealing rings, and another spacing ring is arranged between the axial contact surfaces of the sealing rings and the supporting sleeve.
And an asbestos pad is arranged between the axial contact surfaces of the support sleeve and the lower end of the valve body.
And the specific structure of the sealing assembly comprises two rings of upper sealing rings, one ring of flooding plug sealing rings and three rings of packing rings which are sequentially installed in a limiting manner from bottom to top.
And a screw rod is coaxially arranged at the upper end of the plunger, a bracket is fixedly arranged at the upper end of the valve body, a motor is arranged at the upper end of the bracket, an output shaft of the motor is connected with a nut, the nut is meshed with the screw rod, and the nut is driven by the motor to rotate, so that the screw rod is driven to move up and down, and the plunger is driven to move up and down.
The utility model has the advantages and positive effects that:
the structure of the utility model can keep good sealing performance in use, the sealing structure is not damaged, and the service life is prolonged, thereby improving the overall production efficiency, and being safe and reliable.
Drawings
FIG. 1 is a schematic view of the structure of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the following embodiments, which are illustrative only and not limiting, and the scope of the present invention is not limited thereby.
An electric bottom valve sealing structure comprises a valve body 5, a plunger 3, a screw rod 2, a motor 1, an inner sleeve 9, an upper sealing assembly, a support sleeve 8, a lower sealing ring 6 and a spacer ring 7, wherein the plunger is vertically and coaxially arranged in the valve body, and the screw rod 2 is coaxially arranged at the upper end of the plunger; the upper end of the valve body is fixedly provided with a support, the upper end of the support is provided with a motor, an output shaft of the motor is connected with a nut, the nut is meshed with a screw rod, and electricity drives the nut to rotate, so that the screw rod is driven to move up and down, and the plunger is driven to move up and down.
In order to ensure the sealing performance between the plunger and the valve body, an inner sleeve 9 is coaxially arranged in the valve body, an upper sealing assembly is arranged between the valve body above the inner sleeve and the plunger, the specific structure of the upper sealing assembly comprises an upper sealing ring 10 with two rings, a universal plug sealing ring 11 with one ring and a packing ring 12 with three rings which are sequentially arranged from bottom to top in a limiting way, and a gland 13 is coaxially arranged on the valve body above the upper sealing assembly in a limiting way.
A supporting sleeve 8 is coaxially arranged in the valve body below the inner sleeve, a lower sealing ring 6 is arranged between the supporting sleeve and the plunger piston for three circles, and a spacing ring 7 is arranged between adjacent sealing rings, so that the strength of the sealing rings is enhanced and the deformation is prevented; and another space ring is arranged between the axial contact surfaces of the sealing ring and the support sleeve.
An asbestos pad 5 is arranged between the axial contact surface of the support sleeve and the lower end of the valve body.
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 utility model and the appended claims, and therefore the scope of the utility model is not limited to the disclosure of the embodiments and the accompanying drawings.
Claims (4)
1. The utility model provides an electronic bottom valve seal structure, includes valve body, plunger, lead screw, motor, endotheca, goes up seal assembly, supports cover, lower sealing ring and spacer ring, and vertical coaxial arrangement has the plunger in the valve body, and the plunger can reciprocate its characterized in that: an inner sleeve is coaxially arranged in the valve body, a sealing assembly is arranged between the valve body above the inner sleeve and the plunger, and a gland is coaxially arranged on the valve body above the upper sealing assembly in a limiting way; a supporting sleeve is coaxially arranged in the valve body below the inner sleeve, three lower sealing rings are arranged between the supporting sleeve and the plunger piston, spacing rings are arranged between the adjacent sealing rings, and another spacing ring is arranged between the axial contact surfaces of the sealing rings and the supporting sleeve.
2. The electric foot valve sealing structure according to claim 1, characterized in that: and an asbestos pad is arranged between the support sleeve and the axial contact surface of the lower end of the valve body.
3. The electric foot valve sealing structure according to claim 1, characterized in that: the sealing assembly is characterized in that the specific structure comprises an upper sealing ring, a flooding plug sealing ring and a packing ring which are sequentially and limitedly arranged from bottom to top.
4. The electric foot valve sealing structure according to claim 1, characterized in that: the upper end of the plunger is coaxially provided with a lead screw, the upper end of the valve body is fixedly provided with a bracket, the upper end of the bracket is provided with a motor, an output shaft of the motor is connected with a nut, the nut is meshed with the lead screw, and the nut is driven by the motor to rotate, so that the lead screw is driven to move up and down, and the plunger is driven to move up and down.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122108904.4U CN215891186U (en) | 2021-09-02 | 2021-09-02 | Electric bottom valve sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122108904.4U CN215891186U (en) | 2021-09-02 | 2021-09-02 | Electric bottom valve sealing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215891186U true CN215891186U (en) | 2022-02-22 |
Family
ID=80340721
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122108904.4U Active CN215891186U (en) | 2021-09-02 | 2021-09-02 | Electric bottom valve sealing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215891186U (en) |
-
2021
- 2021-09-02 CN CN202122108904.4U patent/CN215891186U/en active Active
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