CN215059937U - High-temperature-resistant stop valve - Google Patents
High-temperature-resistant stop valve Download PDFInfo
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- CN215059937U CN215059937U CN202120439161.6U CN202120439161U CN215059937U CN 215059937 U CN215059937 U CN 215059937U CN 202120439161 U CN202120439161 U CN 202120439161U CN 215059937 U CN215059937 U CN 215059937U
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- plunger
- high temperature
- temperature resistant
- valve
- gear
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Abstract
The utility model provides a high temperature resistant stop valve; including hollow post, the top welding of hollow post has the set casing, the top embedding of set casing is rotated and is connected with the dwang, the master gear has been cup jointed to the outside of dwang, and the master gear is located the inside of set casing, the inside of set casing is rotated and is connected with the axis of rotation, the external fixation of axis of rotation has cup jointed from the gear, and from gear and master gear intermeshing, there is the threaded rod bottom threaded connection from the gear, the bottom of the inside of threaded rod is provided with the plunger, and the plunger is located the inside of hollow post, the bottom of plunger is provided with the cone, high temperature resistant cover has all been cup jointed to the outside of plunger and cone, the inside of hollow post is provided with the bell groove. The utility model discloses the stop valve has high temperature resistant characteristic, improves the leakproofness of stop valve, and the dynamics when rotating the hand wheel and using can be reduced improves the flexibility when the stop valve uses to the plunger of being convenient for goes up and down, the convenience when improving the stop valve and using.
Description
Technical Field
The utility model relates to a stop valve technical field especially relates to a high temperature resistant stop valve.
Background
The shut-off valve is also called a shut-off valve, and belongs to a forced sealing type valve, so when the valve is closed, pressure must be applied to the valve clack to force the sealing surface not to leak. When the medium enters the valve from the lower part of the valve clack, the resistance to be overcome by the operating force is the friction force between the valve rod and the packing and the thrust generated by the pressure of the medium, the force for closing the valve is larger than the force for opening the valve, so the diameter of the valve rod is larger, otherwise the failure of the valve rod buckling can occur. The connection mode is divided into three types: flange connection, screw thread connection and welding connection. After the self-sealing valve appears, the medium flow direction of the stop valve is changed to enter the valve cavity from the upper part of the valve clack, at this time, under the action of medium pressure, the force for closing the valve is small, the force for opening the valve is large, and the diameter of the valve rod can be correspondingly reduced. At the same time, this type of valve is also relatively tight under the action of the medium. The valve of China has been specified in the 'three-transformation and three-transformation' way, and the flow direction of the stop valve is uniformly from top to bottom. When the stop valve is opened, the opening height of the valve clack is 25% -30% of the nominal diameter, the flow reaches the maximum, and the valve reaches the full-open position. Therefore, the fully open position of the shut-off valve is determined by the stroke of the valve clack.
The stop valve in the prior art has the following problems: the stop valve does not have high temperature resistant characteristic, and the leakproofness of stop valve is relatively poor, and the dynamics when rotating the hand wheel and using is great relatively, and the flexibility when leading to the stop valve to use is relatively poor, and the plunger of not being convenient for goes up and down, and the convenience when the stop valve uses is relatively poor. Therefore, it is desirable to design a high temperature resistant shut-off valve to solve the above problems.
Disclosure of Invention
The utility model aims to overcome the stop valve among the prior art and not have high temperature resistant characteristic to and the leakproofness is relatively poor not enough, and the adaptation reality needs provide a high temperature resistant stop valve.
In order to realize the utility model discloses a purpose, the utility model discloses the technical scheme who adopts does:
the utility model provides a high temperature resistant stop valve, includes hollow post, the top welding of hollow post has the set casing, the top embedding of set casing is rotated and is connected with the dwang, the master gear has been cup jointed to the outside of dwang, and the master gear is located the inside of set casing, the internal rotation of set casing is connected with the axis of rotation, the external fixation of axis of rotation has cup jointed from the gear, and from gear and master gear intermeshing, there is the threaded rod from the bottom threaded connection of gear, the bottom of the inside of threaded rod is provided with the plunger, and the plunger is located the inside of hollow post, the bottom of plunger is provided with the cone, high temperature resistant cover has all been cup jointed to the outside of plunger and cone, the inside of hollow post is provided with the bell jar, and the specification looks adaptation of the specification of bell jar and cone.
Further, the welding of the top outer wall of dwang has a plurality of support frames that are the equidistance subsection, the welding of the one end of support frame has the hand wheel.
Furthermore, the inside of axis of rotation is opened there is the internal thread, and the threaded rod rotates to be connected in the inside of internal thread.
Furthermore, the bottom welding of threaded rod has the rotor plate, the inside of plunger is opened there is the rotation groove, and the rotor plate rotates to be connected in the inside of rotating the groove.
Furthermore, the bottom welding of hollow post has the feed liquor pipe, the welding of one side of hollow post has the fluid-discharge tube.
Furthermore, one end of the liquid inlet pipe is welded with a first flange plate, and one side of the first flange plate is provided with a first fixing hole.
Furthermore, one end of the liquid discharge pipe is welded with a second flange, and one side of the second flange is provided with a second fixing hole.
The beneficial effects of the utility model reside in that:
(1) the utility model discloses utilize high temperature resistant cover, conical body and bell jar, high temperature resistant cover parcel is in the outside of plunger for the stop valve has high temperature resistant characteristic, and the specification of conical body and the specification phase-match of bell jar can improve the leakproofness of stop valve when the conical body embedding is in the bell jar.
(2) The utility model discloses utilize the master gear and from the gear, rotate the hand wheel and drive the dwang and rotate, the dwang drives the master gear and rotates, and the master gear rotates and drives from gear revolve, because the master gear diameter is less than from the gear, consequently can reduce the dynamics when rotating the hand wheel and using, improves the flexibility when stop valve uses.
(3) The utility model discloses utilize axis of rotation, threaded rod and internal thread, the internal thread sets up in the inside of axis of rotation, and the threaded rod passes through internal thread screw in the inside of axis of rotation, and the bottom that drives the threaded rod when the axis of rotation rotates goes up and down to the plunger of being convenient for goes up and down, convenience when improving the stop valve and using.
(4) The utility model discloses utilize and rotate groove and rotor plate, the rotor plate rotates in the inside that rotates the groove, rotates the inside at the plunger when the rotor plate enables the bottom of threaded rod to rotate, drives the plunger when avoiding the threaded rod to rotate and rotates, stability when improving the plunger and going up and down.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention;
fig. 2 is a schematic view of the internal structure of the fixing shell of the present invention;
fig. 3 is a schematic view of the internal structure of the hollow column of the present invention;
fig. 4 is a schematic structural view of the rotating plate of the present invention.
In the figure: the device comprises a hollow column 1, a liquid inlet pipe 2, a liquid discharge pipe 3, a fixed shell 4, a rotating rod 5, a support frame 6, a hand wheel 7, a main gear 8, a rotating shaft 9, a driven gear 10, an internal thread 11, a threaded rod 12, a plunger 13, a high-temperature-resistant sleeve 14, a conical body 15, a conical groove 16, a rotating groove 17, a rotating plate 18, a first flange 19, a first fixing hole 20, a second flange 21 and a second fixing hole 22.
Detailed Description
The invention will be further described with reference to the following figures and examples:
referring to fig. 1 to 4, the utility model relates to a high temperature resistant stop valve, which comprises a hollow column 1, a fixed shell 4 welded on the top of the hollow column 1, a rotating rod 5 connected with the top of the fixed shell 4 in an embedded and rotating manner, a rotating hand wheel 7 driving the rotating rod 5 to rotate, the rotating rod 5 driving a main gear 8 to rotate, the main gear 8 driving a driven gear 10 to rotate, because the diameter of the main gear 8 is smaller than that of the driven gear 10, the force of the rotating hand wheel 7 in use can be reduced, the flexibility of the stop valve in use is improved, the main gear 8 is sleeved on the outside of the rotating rod 5, the main gear 8 is positioned inside the fixed shell 4, a rotating shaft 9 is rotatably connected inside the fixed shell 4, the bottom end of a threaded rod 12 is driven to lift when the rotating shaft 9, thereby facilitating the lifting of a plunger 13 and improving the convenience of the stop valve in use, the driven gear 10 is fixedly sleeved on the outside of the rotating shaft 9, the slave gear 10 and the master gear 8 are meshed with each other, the bottom end of the slave gear 10 is in threaded connection with a threaded rod 12, the bottom end of the inside of the threaded rod 12 is provided with a plunger 13, the plunger 13 is located inside the hollow column 1, the bottom of the plunger 13 is provided with a conical body 15, the outside of the plunger 13 and the outside of the conical body 15 are both sleeved with a high-temperature-resistant sleeve 14, and the high-temperature-resistant sleeve 14 wraps the outside of the plunger 13, so that the stop valve has a high-temperature-resistant characteristic, the inside of the hollow column 1 is provided with a conical groove 16, the specification of the conical groove 16 is matched with that of the conical body 15, and when the conical body 15 is embedded into the conical groove 16, the sealing performance of the stop valve can be improved.
The welding of the top outer wall of dwang 5 has a plurality of support frames 6 that are the equidistance subsection, and support frame 6 is used for the remaining hand wheel 7 of dwang 5 to connect, and the welding of the one end of support frame 6 has hand wheel 7, and hand wheel 7 is convenient for rotate dwang 5.
The inside of axis of rotation 9 is opened there is internal thread 11, and threaded rod 12 rotates the inside of connecting at internal thread 11, drives the bottom of threaded rod 12 and goes up and down when axis of rotation 9 rotates to the plunger 13 of being convenient for goes up and down, convenience when improving the stop valve and using.
The bottom welding of threaded rod 12 has rotor plate 18, and open the inside of plunger 13 has rotating groove 17, and rotor plate 18 rotates and connects in rotating groove 17's inside, and rotor plate 18 rotates when making the bottom of threaded rod 12 rotate in plunger 13's inside, avoids threaded rod 12 to drive plunger 13 when rotating and rotates, improves the stability when plunger 13 goes up and down.
The bottom welding of hollow post 1 has feed liquor pipe 2, and feed liquor pipe 2 is used for liquid to enter into the stop valve in, and the welding of one side of hollow post 1 has fluid-discharge tube 3, and fluid-discharge tube 3 is used for the liquid discharge stop valve.
One end of the liquid inlet pipe 2 is welded with a first flange 19, the first flange 19 is convenient for the liquid inlet pipe 2 to be connected with a connecting pipe, and one side of the first flange 19 is provided with a first fixing hole 20.
One end of the liquid discharge pipe 3 is welded with a second flange 21, the second flange 21 is convenient for the liquid inlet pipe 2 to be connected with the incoming pipe, and one side of the second flange 21 is provided with a second fixing hole 22.
The utility model discloses a theory of operation does: when the stop valve is used, the stop valve is installed at a designated position through the first flange plate 19 and the second flange plate 21, the hand wheel 7 is rotated to drive the rotating rod 5 to rotate, the rotating rod 5 drives the main gear 8 to rotate, the main gear 8 rotates to drive the driven gear 10 to rotate, the diameter of the main gear 8 is smaller than that of the driven gear 10, therefore, the force when the hand wheel 7 is rotated to use can be reduced, the flexibility when the stop valve is used is improved, the high-temperature-resistant sleeve 14 is wrapped outside the plunger 13, the stop valve has the high-temperature-resistant characteristic, the specification of the conical body 15 is matched with that of the conical groove 16, when the conical body 15 is embedded in the conical groove 16, the sealing performance of the stop valve can be improved, the internal thread 11 is arranged inside the rotating shaft 9, the threaded rod 12 is arranged inside the rotating shaft 9 through the internal thread 11, the bottom end of the threaded rod 12 is driven to lift when the rotating shaft 9 rotates, the rotating plate 18 rotates inside the rotating groove 17, the rotating plate 18 can enable the bottom end of the threaded rod 12 to rotate inside the plunger 13 when rotating, the threaded rod 12 is prevented from driving the plunger 13 to rotate when rotating, the stability of the plunger 13 during lifting is improved, the plunger 13 is convenient to lift, and the convenience of the stop valve during use is improved.
The embodiment of the present invention discloses a preferred embodiment, but not limited thereto, and those skilled in the art can easily understand the spirit of the present invention according to the above embodiment, and make different extensions and changes, but do not depart from the spirit of the present invention, all of which are within the protection scope of the present invention.
Claims (7)
1. The utility model provides a high temperature resistant stop valve, includes hollow post (1), its characterized in that, the top welding of hollow post (1) has set casing (4), the top embedding of set casing (4) is rotated and is connected with dwang (5), master gear (8) have been cup jointed to the outside of dwang (5), and master gear (8) are located the inside of set casing (4), the internal rotation of set casing (4) is connected with axis of rotation (9), the external fixation of axis of rotation (9) has cup jointed from gear (10), and from gear (10) and master gear (8) intermeshing, the bottom threaded connection from gear (10) has threaded rod (12), the bottom of the inside of threaded rod (12) is provided with plunger (13), and plunger (13) are located the inside of hollow post (1), the bottom of plunger (13) is provided with cone (15), high temperature resistant cover (14) have all been cup jointed to the outside of plunger (13) and conical body (15), the inside of hollow column (1) is provided with tapered slot (16), and the specification of tapered slot (16) and the specification looks adaptation of conical body (15).
2. A high temperature resistant shut off valve as defined in claim 1, wherein: the welding of the top outer wall of dwang (5) has a plurality of support frames (6) that are the equidistance subsection, the welding of the one end of support frame (6) has hand wheel (7).
3. A high temperature resistant shut off valve as defined in claim 1, wherein: an internal thread (11) is formed in the rotating shaft (9), and the threaded rod (12) is rotatably connected to the inside of the internal thread (11).
4. A high temperature resistant shut off valve as defined in claim 1, wherein: the bottom welding of threaded rod (12) has rotor plate (18), open the inside of plunger (13) has rotation groove (17), and rotor plate (18) rotate to be connected in the inside of rotating groove (17).
5. A high temperature resistant shut off valve as defined in claim 1, wherein: the bottom welding of hollow column (1) has feed liquor pipe (2), one side welding of hollow column (1) has fluid-discharge tube (3).
6. A high temperature resistant shut off valve as defined in claim 5, wherein: one end of the liquid inlet pipe (2) is welded with a first flange plate (19), and one side of the first flange plate (19) is provided with a first fixing hole (20).
7. A high temperature resistant shut off valve as defined in claim 5, wherein: and a second flange plate (21) is welded at one end of the liquid discharge pipe (3), and a second fixing hole (22) is formed in one side of the second flange plate (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120439161.6U CN215059937U (en) | 2021-03-01 | 2021-03-01 | High-temperature-resistant stop valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120439161.6U CN215059937U (en) | 2021-03-01 | 2021-03-01 | High-temperature-resistant stop valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215059937U true CN215059937U (en) | 2021-12-07 |
Family
ID=79254727
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120439161.6U Active CN215059937U (en) | 2021-03-01 | 2021-03-01 | High-temperature-resistant stop valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215059937U (en) |
-
2021
- 2021-03-01 CN CN202120439161.6U patent/CN215059937U/en active Active
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