CN216343985U - Stop valve with good sealing performance - Google Patents
Stop valve with good sealing performance Download PDFInfo
- Publication number
- CN216343985U CN216343985U CN202122433117.7U CN202122433117U CN216343985U CN 216343985 U CN216343985 U CN 216343985U CN 202122433117 U CN202122433117 U CN 202122433117U CN 216343985 U CN216343985 U CN 216343985U
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- Prior art keywords
- valve
- sealing
- rod
- grooves
- stop
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- Expired - Fee Related
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- 238000007789 sealing Methods 0.000 title claims abstract description 65
- 238000010030 laminating Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 229910001339 C alloy Inorganic materials 0.000 description 1
- 229910001018 Cast iron Inorganic materials 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000001174 ascending effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model discloses a stop valve with good sealing performance, which comprises a valve body, wherein a valve cover is arranged at the top of the valve body, a valve rod is in threaded connection with the middle of the valve cover, a rotating handle is connected with the top of the valve rod, a valve core is connected with the bottom of the valve rod, an input pipe and an output pipe are arranged on two sides of the valve body, a valve port is arranged between the input pipe and the output pipe, the central axis of the valve port coincides with the central axis of the valve core, two grooves with downward openings are arranged in the valve cover, movable blocks are movably sleeved in the grooves, springs are connected with the tops of the movable blocks, the springs are connected with the inner side walls of the tops of the grooves, movable rods are connected with the bottoms of the movable blocks, and the movable rods extend downwards to the interior of the valve body and are connected with reinforced sealing blocks. The utility model can improve the sealing effect of the stop valve.
Description
Technical Field
The utility model belongs to the technical field of marine valves, and particularly relates to a stop valve with good sealing performance.
Background
A stop valve is a valve in which a closure member (flap) moves along the centerline of the valve seat. According to this form of movement of the valve flap, the change in the valve seat opening is proportional to the valve flap travel. The valve rod of the valve has relatively short opening or closing stroke and reliable cut-off function, and the valve is suitable for regulating flow rate owing to the proportional relation between the valve seat port change and the valve clack stroke.
The utility model patent of China with application number 2018108056588 discloses a stop valve for a cast iron ship, which comprises a valve body, wherein the left end and the right end of the valve body are respectively provided with a water outlet and a water inlet, the end surfaces of the water outlet and the water inlet, which are far away from the valve body, are respectively provided with a mounting plate, the top end of the valve body is provided with a conical cap, the top end of the conical cap is of a closed structure, a valve rod is arranged in the valve body and penetrates through the top end of the conical cap, the valve rod is of a trapezoidal thread structure with a smooth upper end and a cylindrical lower end, the valve rod is rotated by using a hand wheel fixed by a nut, and due to the meshing of the valve rod and the valve rod nut, the ascending or descending of the valve rod is realized by utilizing the principles of acting force and reaction force, because a sealing filler is arranged between the valve rod and the conical cap, the leakage problem can be prevented, and the valve rod and a rotating shaft are both made of high-carbon alloy steel, so that the strength is higher; the special structural design of the rotating shaft seat can realize independent rotation between the rotating shaft and the valve clack and meet the requirements of the valve rod on the push-pull stress of the valve clack, and the whole structure of the device is more reasonable and compact, and the reliability is higher. However, the valve flap in the above patent is only sealed by one sealing gasket, and the sealing effect is not good.
SUMMERY OF THE UTILITY MODEL
In order to solve the problems, the utility model provides a stop valve with good sealing performance, which comprises a valve body, wherein the top of the valve body is provided with a valve cover, the middle of the valve cover is in threaded connection with a valve rod, the top of the valve rod is connected with a rotating handle, the bottom of the valve rod is connected with a valve core, two sides of the valve body are provided with an input pipe and an output pipe, a valve port is arranged between the input pipe and the output pipe, the central axis of the valve port is coincided with the central axis of the valve core, two grooves with downward openings are arranged in the valve cover, movable blocks are movably sleeved in the grooves, the tops of the movable blocks are connected with springs, the springs are connected with the inner side walls of the tops of the grooves, the bottoms of the movable blocks are connected with movable rods, the movable rods extend downwards to the inside of the valve body and are connected with reinforced sealing blocks, and the reinforced sealing blocks are attached to the outer surface of the valve core, the case is including the valve plate and the valve plug that set up from top to bottom, strengthen sealed piece including integrated into one piece's horizontal part and vertical portion, the circumference side surface of vertical portion and valve plate is laminated mutually, the horizontal part closely laminates mutually with the top surface of valve plate.
Preferably, the bottom of the two ends of the valve plate is provided with a first sealing convex ring, the bottom of the vertical part is provided with a second sealing convex ring, and the axial side wall of the valve port is provided with a first sealing groove corresponding to the first sealing convex ring and a second sealing groove corresponding to the second sealing convex ring.
The preferred, the top of valve gap is equipped with the valve frame, the inside of valve frame is equipped with the spacing ring, the spacing ring is fixed to be set up on the valve rod, the side of valve frame is equipped with stop device, stop device includes spacing case and gag lever post, the spacing case is connected with the side of valve frame, the gag lever post passes inside the spacing case extends to the valve frame, the inside of spacing case is equipped with the inner chamber, the inside slip of inner chamber is equipped with the slider, the slider is fixed on the gag lever post, the side of slider is connected with spacing spring, spacing spring's side is connected with the lateral wall of inner chamber.
Preferably, one end of the limiting rod is connected with a handle part, and a check rod is rotatably arranged above the handle part.
Preferably, the input pipe and the output pipe are both internally provided with filter screens.
The utility model has the advantages that:
1. be provided with recess, spring and, carriage release lever and reinforced seal piece, after the valve port was plugged up in the case lapse removal, the carriage release lever also moved down under the effect of spring, extrudees reinforced seal piece simultaneously, and reinforced seal piece can extrude the case, promotes the sealed effect of case and valve port, simultaneously, has also promoted the leakproofness between reinforced seal piece and the valve port axial lateral wall, the effectual sealed effect that has increased valve port and case.
2. The sealing structure is additionally arranged between the valve core and the sealing surface of the valve port and between the reinforced sealing block and the valve port, so that the sealing performance between the valve core and the valve port and between the reinforced sealing block and the valve port can be effectively improved.
Drawings
FIG. 1 is a schematic view of the internal structure of the present invention;
FIG. 2 is a view of the valve core and the valve port of the present invention shown in a non-closed configuration;
FIG. 3 is a closed configuration of the valve cartridge and valve port of the present invention;
FIG. 4 is a view of the internal groove of the valve cover of the present invention;
FIG. 5 is a view showing the structure of the stopper of the present invention;
fig. 6 is a structural view of the limiting device in a locking state.
In the figure: 1 valve body, 2 valve covers, 3 valve rods, 4 rotating handles, 5 valve cores, 6 input pipes, 7 output pipes, 8 grooves, 9 movable blocks, 10 springs, 11 moving rods, 12 reinforced sealing blocks, 13 valve plates, 14 valve plugs, 15 horizontal parts, 16 vertical parts, 17 first sealing convex rings, 18 second sealing convex rings, 19 first sealing grooves, 20 second sealing grooves, 21 valve frames, 22 limiting rings, 23 limiting boxes, 24 limiting rods, 25 inner cavities, 26 sliding blocks, 27 limiting springs, 28 non-return rods, 29 filter screens and 30 handle parts.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.
Example 1
As shown in fig. 1-6, a stop valve with good sealing performance comprises a valve body 1, a valve cover 2 is arranged at the top of the valve body 1, a valve rod 3 is connected with the middle of the valve cover 2 through a thread, a rotating handle 4 is connected with the top of the valve rod 3, a valve core 5 is connected with the bottom of the valve rod 3, an input pipe 6 and an output pipe 7 are arranged at two sides of the valve body 1, a valve port is arranged between the input pipe 6 and the output pipe 7, the central axis of the valve port coincides with the central axis of the valve core 5, two grooves 8 with downward openings are arranged inside the valve cover 2, a movable block 9 is movably sleeved inside the grooves 8, a spring 10 is connected with the top of the movable block 9, the spring 10 is connected with the inner side wall at the top of the grooves 8, a movable rod 11 is connected with the bottom of the movable block 9, the movable rod 11 extends downwards into the valve body 1 and is connected with a reinforced sealing block 12, and the reinforced sealing block 12 is attached to the outer surface of the valve core 5, the valve core 5 comprises a valve plate 13 and a valve plug 14 which are arranged up and down, the reinforcing sealing block 12 comprises a horizontal part 15 and a vertical part 16 which are integrally formed, the vertical part 16 is attached to the circumferential side surface of the valve plate 13, and the horizontal part 15 is closely attached to the top surface of the valve plate 13. The bottom of the two ends of the valve plate 13 is provided with a first sealing convex ring 17, the bottom of the vertical part 16 is provided with a second sealing convex ring 18, and the axial side wall of the valve port is provided with a first sealing groove 19 corresponding to the first sealing convex ring 17 and a second sealing groove 20 corresponding to the second sealing convex ring 18.
The valve rod 3 can be driven to move up and down by rotating the rotary handle 4, the valve rod 3 drives the valve core 5 to move up and down, and therefore the valve port is blocked, as shown in fig. 2-3, when the valve core 5 moves downwards to the valve port, the valve plate 13 and the axial outer side surface of the valve port form a first sealing surface, the valve plug 14 and the inner side peripheral surface of the valve port form a second sealing surface, after the valve core 5 moves downwards to block the valve port, the horizontal part 15 of the reinforced sealing block 12 can also move downwards under the action force of the spring 10 and extrude the valve plate 13, the sealing effect of the valve core 5 and the valve port is improved, meanwhile, a sealing surface is formed between the vertical part 16 of the reinforced sealing block 12 and the axial side wall of the valve port, and the sealing effect of the valve port and the valve core 5 is effectively improved. The sealing structure is additionally arranged between the valve core 5 and the sealing surface of the valve port and between the reinforced sealing block 12 and the valve port by the aid of the sealing structures arranged on the first sealing convex ring 17, the second sealing convex ring 18, the first sealing groove 19 and the second sealing groove 20, and the sealing property between the valve core 5 and the valve port and between the reinforced sealing block 12 and the valve port can be effectively improved.
Example 2
This embodiment has the same portions as embodiment 1, and is different in that: valve gap 2's top is equipped with valve frame 21, the inside of valve frame 21 is equipped with spacing ring 22, spacing ring 22 is fixed to be set up on valve rod 3, the side of valve frame 21 is equipped with stop device, stop device includes spacing case 23 and gag lever post 24, spacing case 23 is connected with the side of valve frame 21, gag lever post 24 passes inside spacing case 23 extends to valve frame 21, the inside of spacing case 23 is equipped with inner chamber 25, the inside of inner chamber 25 slides and is equipped with slider 26, slider 26 is fixed on gag lever post 24, the side of slider 26 is connected with spacing spring 27, the side of spacing spring 27 is connected with the lateral wall of inner chamber 25. One end of the limiting rod 24 is connected with a handle part 30, a check rod 28 is rotatably arranged above the handle part 30, the rotating handle 4 is rotated, firstly, the limiting rod 24 is drawn out from the valve frame 21, then, as shown in fig. 5, the stopping rod 28 is abutted, otherwise, under the action of the limiting spring 27, the limiting rod 24 can return to the valve frame 21 again, then, the rotating handle 4 can be rotated to drive the valve rod 3 to move downwards, after the valve port is blocked by the valve core 5, the limiting ring 22 can also move to the bottom of the valve frame 21, at the moment, the check rod 28 is pulled out, the limiting rod 24 is clamped into the valve frame 21 again under the action of the limiting spring 27, so that the limiting ring 22 is clamped below, the problem that the valve rod 3 cannot move upwards is avoided, and a further guarantee is provided for the sealing effect of the valve core 5.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. The utility model provides a stop valve that leakproofness is good which characterized in that: the valve comprises a valve body (1), a valve cover (2) is arranged at the top of the valve body (1), a valve rod (3) is in threaded connection with the middle of the valve cover (2), a rotating handle (4) is connected with the top of the valve rod (3), a valve core (5) is connected with the bottom of the valve rod (3), an input pipe (6) and an output pipe (7) are arranged on two sides of the valve body (1), a valve port is arranged between the input pipe (6) and the output pipe (7), the central axis of the valve port is coincident with the central axis of the valve core (5), two grooves (8) with downward openings are arranged inside the valve cover (2), movable blocks (9) are movably sleeved inside the grooves (8), the tops of the movable blocks (9) are connected with springs (10), the springs (10) are connected with the inner side walls at the tops of the grooves (8), the bottoms of the movable blocks (9) are connected with movable rods (11), the utility model discloses a valve structure, including valve core (5), removal pole (11), valve plate (13), valve plug (14), valve core (5), valve plate (12), sealed piece (12) are strengthened to the inside enhancement that is connected with of valve body (1) downwardly extending, strengthen sealed piece (12) laminating and be in the surface of valve core (5), valve core (5) are including valve plate (13) and valve plug (14) that set up from top to bottom, strengthen sealed piece (12) including integrated into one piece's horizontal part (15) and vertical portion (16), the circumference side surface of vertical portion (16) and valve plate (13) is laminated mutually, the top surface of horizontal part (15) and valve plate (13) is closely laminated mutually.
2. A stop valve with good sealing performance as claimed in claim 1, wherein: the valve comprises a valve plate (13) and is characterized in that first sealing convex rings (17) are arranged at the bottoms of two ends of the valve plate (13), second sealing convex rings (18) are arranged at the bottoms of vertical parts (16), and first sealing grooves (19) corresponding to the first sealing convex rings (17) and second sealing grooves (20) corresponding to the second sealing convex rings (18) are formed in the axial side wall of the valve port.
3. A stop valve with good sealing performance according to claim 2, characterized in that: the top of valve gap (2) is equipped with valve frame (21), the inside of valve frame (21) is equipped with spacing ring (22), spacing ring (22) are fixed to be set up on valve rod (3), the side of valve frame (21) is equipped with stop device, stop device includes spacing case (23) and gag lever post (24), spacing case (23) are connected with the side of valve frame (21), gag lever post (24) pass inside spacing case (23) extend to valve frame (21), the inside of spacing case (23) is equipped with inner chamber (25), the inside slip of inner chamber (25) is equipped with slider (26), slider (26) are fixed on gag lever post (24), the side of slider (26) is connected with spacing spring (27), the side of spacing spring (27) is connected with the lateral wall of inner chamber (25).
4. A stop valve with good sealing performance according to claim 3, characterized in that: one end of the limiting rod (24) is connected with a handle part (30), and a check rod (28) is rotatably arranged above the handle part (30).
5. A stop valve that leakproofness is good according to claim 4, characterized by: and filter screens (29) are arranged in the input pipe (6) and the output pipe (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122433117.7U CN216343985U (en) | 2021-10-11 | 2021-10-11 | Stop valve with good sealing performance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122433117.7U CN216343985U (en) | 2021-10-11 | 2021-10-11 | Stop valve with good sealing performance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216343985U true CN216343985U (en) | 2022-04-19 |
Family
ID=81173747
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122433117.7U Expired - Fee Related CN216343985U (en) | 2021-10-11 | 2021-10-11 | Stop valve with good sealing performance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216343985U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115507081A (en) * | 2022-11-04 | 2022-12-23 | 烟台中宇航空液压有限公司 | Hydraulic valve |
-
2021
- 2021-10-11 CN CN202122433117.7U patent/CN216343985U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115507081A (en) * | 2022-11-04 | 2022-12-23 | 烟台中宇航空液压有限公司 | Hydraulic valve |
| CN115507081B (en) * | 2022-11-04 | 2023-02-17 | 烟台中宇航空液压有限公司 | Hydraulic valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20220419 |