CN220505814U - High-vacuum manual baffle valve - Google Patents
High-vacuum manual baffle valve Download PDFInfo
- Publication number
- CN220505814U CN220505814U CN202322239742.7U CN202322239742U CN220505814U CN 220505814 U CN220505814 U CN 220505814U CN 202322239742 U CN202322239742 U CN 202322239742U CN 220505814 U CN220505814 U CN 220505814U
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- screw
- valve
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- hole
- sealing
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- 238000007789 sealing Methods 0.000 claims abstract description 83
- 230000009286 beneficial effect Effects 0.000 abstract description 4
- 230000000903 blocking effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
Abstract
The utility model relates to the technical field of valves and discloses a high-vacuum manual baffle valve, wherein a valve cover is provided with a locking assembly, the locking assembly comprises a rotating sleeve sleeved on a threaded sleeve, a transverse bar fixedly arranged on one side of the rotating sleeve far away from the threaded sleeve, a locking screw sleeve fixedly arranged on the transverse bar, a screw A and a screw B, a screw hole A is formed in the valve cover, a through hole A which is coincident with the position of the screw hole A is formed in the transverse bar, the screw A is fixedly connected with the valve cover after being inserted into the through hole A, a through hole B is formed in a knob, the through hole B is coincident with the locking screw sleeve when the baffle valve is in a closed state, and the screw B is inserted into the through hole B and then screwed into the locking screw sleeve to be fixedly connected with the locking screw sleeve when the through hole B is coincident with the locking screw sleeve. The sealing device has the beneficial effects of preventing the sealing plate from moving and improving the sealing performance, and solves the problem of leakage of air flow caused by the problem of reduced sealing performance after the valve is closed.
Description
Technical Field
The utility model relates to the technical field of valves, in particular to a high-vacuum manual baffle valve.
Background
The high vacuum flapper valve is a valve used in a vacuum system for opening or blocking air flow, and can be classified into manual, pneumatic, electric, etc. according to a driving manner, wherein the manual high vacuum flapper valve is widely used. The working principle of the high-vacuum manual baffle valve is that a hand wheel is rotated to drive a valve rod to rotate, the valve rod pushes a sealing plate to move forwards and backwards, the valve is opened and closed, and the valve rod and the valve body are locked by means of trapezoidal thread friction force.
In actual use, the high-vacuum manual baffle valve can vibrate due to factors such as gas flow of a vacuum system, equipment operation and the like, so that friction force of trapezoidal threads between a valve rod and a valve body is reduced, a sealing plate is displaced, the problem of reduced tightness after the valve is closed is caused, and the problem of leakage of air flow is caused.
Disclosure of Invention
The utility model aims to provide a high-vacuum manual baffle valve so as to solve the problems in the background technology.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a manual baffle valve of high vacuum, includes valve body, fixed mounting valve gap on the valve body right side, fixed mounting thread bush on the valve cap, with thread bush threaded connection's valve rod, fixed mounting at the knob of valve rod right-hand member, be located the inside closing plate of valve body, the valve rod left end stretches into the inside and closing plate fixed rotation of valve body and is connected, its characterized in that: the valve cover is provided with a locking assembly, the locking assembly comprises a rotating sleeve sleeved on the threaded sleeve, a transverse bar fixedly arranged on one side, far away from the threaded sleeve, of the rotating sleeve, a locking screw sleeve fixedly arranged on the transverse bar, a screw A and a screw B, a screw hole A is formed in the valve cover, a through hole A overlapped with the position of the screw hole A is formed in the transverse bar, the screw A is screwed into the screw hole A to be fixedly connected with the valve cover after being inserted into the through hole A, a through hole B is formed in the knob, the through hole B is overlapped with the position of the locking screw sleeve when the baffle valve is in a closed state, and the screw B is screwed into the locking screw sleeve to be fixedly connected with the locking screw sleeve after being inserted into the through hole B when the through hole B is overlapped with the position of the locking screw sleeve.
Preferably, a circle of screw holes B formed in the valve cover are uniformly formed in the circumferential direction of the rotating sleeve, the diameters of the screw holes B are the same as those of the screw holes A, and when the baffle valve is in an open state, the positions of the through holes A and the corresponding screw holes B are overlapped, and the positions of the through holes B and the locking screw sleeve are overlapped.
Preferably, the limiting piece is fixedly arranged on the inner side wall of the rotating sleeve, the thread sleeve is provided with a limiting groove matched with the limiting piece, and the limiting piece is inserted into the limiting groove to be in contact connection with the thread sleeve.
Preferably, the sealing plate is provided with a sealing assembly, the sealing assembly comprises a sealing ring A and a sealing ring B, the sealing plate is provided with a sealing groove A and a sealing groove B, and the sealing ring A and the sealing ring B are respectively inserted into the sealing groove A and the sealing groove B to be in abutting connection with the sealing plate.
Preferably, the sealing assembly further comprises a corrugated pipe positioned in the valve body, the valve rod is positioned on the inner side of the corrugated pipe, one end of the corrugated pipe is fixedly connected with the valve body, and the other end of the corrugated pipe is fixedly connected with the right side wall of the sealing plate.
Preferably, a spring is arranged in the valve body, the spring is positioned between the corrugated pipe and the valve rod, one end of the spring is fixedly connected with the valve body, and the other end of the spring is fixedly connected with the right side wall of the sealing plate.
Preferably, reticulate knurling is arranged on the knob and on the screw heads of the screw A and the screw B.
The utility model has the beneficial effects that: when the baffle valve needs to be closed, the rotary knob drives the valve rod to rotate, the valve rod can conduct threaded rotary motion in the threaded sleeve, and the valve rod can move into the valve body, so that the sealing plate is pushed to be attached to the valve body, and closing of the baffle valve is completed; because the screw hole A is formed in the valve cover, the cross bar is provided with the through hole A which coincides with the screw hole A in position, the screw A is screwed into the screw hole A to be fixedly connected with the valve cover after being inserted into the through hole A, and the cross bar and the locking screw sleeve can be fixed on the valve cover; because the knob is provided with the through hole B, the through hole B coincides with the locking screw sleeve when the baffle valve is in a closed state, the screw B is inserted into the through hole B and then screwed into the locking screw sleeve to be fixedly connected with the locking screw sleeve, and the knob can be fixed on the locking screw sleeve; because the locking screw sleeve is fixed on the valve cover, the knob is fixed on the locking screw sleeve, and at the moment, the knob and the valve rod cannot rotate, so that the valve rod is prevented from rotating due to vibration, the sealing plate is prevented from moving, and the tightness between the sealing plate and the valve body is improved; in summary, the sealing plate has the beneficial effects of preventing the sealing plate from moving and improving the sealing performance, and solves the problems that the friction force of trapezoidal threads between the valve rod and the valve body is reduced, the sealing plate is displaced, the sealing performance is reduced after the valve is closed, and the air flow is leaked due to the fact that the vacuum manual baffle valve vibrates.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a top view of the present utility model;
FIG. 3 is a cross-sectional view taken at A-A of FIG. 2.
In the figure: valve body 1, valve gap 2, thread bush 3, valve rod 4, knob 5, closing plate 6, rotation cover 7, horizontal bar 8, locking swivel nut 9, screw A10, screw B11, screw A12, through hole A13, through hole B14, screw B15, spacing piece 16, spacing groove 17, sealing washer A18, sealing washer B19, sealing groove A20, sealing groove B21, bellows 22, spring 23.
Detailed Description
The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model.
As shown in fig. 1-3, the utility model discloses a high-vacuum manual baffle valve, which comprises a valve body 1, a valve cover 2 fixedly arranged on the right side of the valve body 1, a thread sleeve 3 fixedly arranged on the valve cover 2, a valve rod 4 in threaded connection with the thread sleeve 3, a knob 5 fixedly arranged on the right end of the valve rod 4, and a sealing plate 6 positioned in the valve body 1, wherein the left end of the valve rod 4 stretches into the valve body 1 and is fixedly and rotatably connected with the sealing plate 6, a locking assembly is arranged on the valve cover 2, the locking assembly comprises a rotating sleeve 7 sleeved on the thread sleeve 3, a transverse bar 8 fixedly arranged on one side of the rotating sleeve 7 far away from the thread sleeve 3, a locking screw sleeve 9 fixedly arranged on the transverse bar 8, a screw A10 and a screw B11, a through hole A13 overlapped with the position of the screw A12 is formed in the transverse bar 8, the screw A10 is inserted into the through hole A13 and then is fixedly connected with the valve cover 2, a through hole B14 is formed in the knob 5, and when the baffle valve is in a closed state, the through hole B14 is screwed into the through hole B9 and the through hole B14 is fixedly overlapped with the locking sleeve through hole B when the through hole B is screwed into the through hole 9. When the baffle valve needs to be closed, the rotary knob 5 drives the valve rod 4 to rotate, the valve rod 4 can conduct threaded rotary motion in the threaded sleeve 3, and the valve rod 4 can move into the valve body 1, so that the sealing plate 6 is pushed to be attached to the valve body 1, and closing of the baffle valve is completed; because the screw hole A12 is formed in the valve cover 2, the through hole A13 which is coincident with the screw hole A12 in position is formed in the cross bar 8, the screw A10 is inserted into the through hole A13 and then screwed into the screw hole A12 to be fixedly connected with the valve cover 2, and the cross bar 8 and the locking screw sleeve 9 can be fixed on the valve cover 2; because the knob 5 is provided with the through hole B14, when the baffle valve is in a closed state, the through hole B14 is overlapped with the locking screw sleeve 9 in position, the screw B11 is inserted into the through hole B14 and then screwed into the locking screw sleeve 9 to be fixedly connected with the locking screw sleeve, and the knob 5 can be fixed on the locking screw sleeve 9; because the locking screw sleeve 9 is fixed on the valve cover 2, the knob 5 is fixed on the locking screw sleeve 9, and at the moment, the knob 5 and the valve rod 4 cannot rotate, so that the valve rod 4 is prevented from rotating due to vibration, the sealing plate 6 is prevented from moving, and the tightness between the sealing plate 6 and the valve body 1 is improved; in summary, the utility model has the beneficial effects of preventing the sealing plate 6 from moving and improving the sealing performance, and solves the problems that the friction force of the trapezoidal threads between the valve rod 4 and the valve body 1 is reduced, the sealing plate 6 is displaced, the sealing performance is reduced after the valve is closed, and the air flow is leaked due to the vibration of the vacuum manual baffle valve.
Preferably, a circle of screw holes B15 formed in the valve cover 2 are uniformly formed in the circumferential direction of the rotating sleeve 7, the diameters of the screw holes B15 and the screw holes A12 are the same, and when the baffle valve is in an open state, the positions of the through holes A13 and the corresponding screw holes B15 are overlapped, and the positions of the through holes B14 and the locking screw sleeve 9 are overlapped. Because the screw hole B15 formed in the valve cover 2 is uniformly formed in the circumferential direction of the rotating sleeve 7, when the baffle valve needs to be opened, the rotating knob 5 drives the valve rod 4 to rotate, the valve rod 4 can conduct threaded rotation in the threaded sleeve 3, the valve rod 4 can extend out of the valve body 1 to drive the sealing plate 6 to move, a gap is formed between the sealing plate 6 and the valve body 1, at the moment, the positions of the locking screw sleeve 9 and the through hole B14 are not coincident (the screw B11 is screwed out of the locking screw sleeve 9), the rotating sleeve 7 is rotated to enable the locking screw sleeve 9 to be coincident with the position of the through hole B14 again, the through hole A13 can be rotated from the position of the screw hole A12 to the position corresponding to the screw hole B15 to be coincident with the position of the screw hole B15, the screw A10 is screwed into the screw hole B15 to be fixedly connected with the valve cover 2 after the screw B11 is inserted into the through hole B14, and the locking screw sleeve 9 is screwed into the locking screw sleeve 9 to be fixedly connected with the valve cover 2, and the knob 5 can be fixed, and the function of locking the knob 5 at any position and preventing opening of the baffle valve from changing is achieved.
Preferably, a limit piece 16 is fixedly arranged on the inner side wall of the rotating sleeve 7, a limit groove 17 matched with the limit piece 16 is formed in the threaded sleeve 3, and the limit piece 16 is inserted into the limit groove 17 to be in contact connection with the threaded sleeve 3. The limiting piece 16 is inserted into the limiting groove 17 to be in contact connection with the threaded sleeve 3, so that the effect of preventing the rotating sleeve 7 from moving left and right during rotation is achieved.
Preferably, the sealing plate 6 is provided with a sealing assembly, the sealing assembly comprises a sealing ring A18 and a sealing ring B19, the sealing plate 6 is provided with a sealing groove A20 and a sealing groove B21, and the sealing ring A18 and the sealing ring B19 are respectively inserted into the sealing groove A20 and the sealing groove B21 to be in abutting connection with the sealing plate 6. Because sealing washer A18 and sealing washer B19 insert seal groove A20 and sealing groove B21 respectively and contradict with closing plate 6 and be connected, formed double seal structure, played the effect that promotes the leakproofness.
Preferably, the sealing assembly further comprises a corrugated pipe 22 positioned in the valve body 1, the valve rod 4 is positioned on the inner side of the corrugated pipe 22, one end of the corrugated pipe 22 is fixedly connected with the valve body 1, and the other end of the corrugated pipe 22 is fixedly connected with the right side wall of the sealing plate 6. Because one end of the corrugated pipe 22 is fixedly connected with the valve body 1, the other end of the corrugated pipe 22 is fixedly connected with the right side wall of the sealing plate 6, and the functions of blocking air flow and preventing air flow from leaking from the joint of the valve body 1 and the valve cover 2 are achieved.
Preferably, a spring 23 is arranged in the valve body 1, the spring 23 is located between the corrugated pipe 22 and the valve rod 4, one end of the spring 23 is fixedly connected with the valve body 1, and the other end of the spring 23 is fixedly connected with the right side wall of the sealing plate 6. Because one end of the spring 23 is fixedly connected with the valve body 1, the other end of the spring 23 is fixedly connected with the right side wall of the sealing plate 6, and the function of saving labor when screwing in the valve rod 4 is achieved.
Preferably, knurling is arranged on the knob 5 and the screw heads of the screw A10 and the screw B11. The knob 5 and the screw heads of the screw A10 and the screw B11 are respectively provided with the knurled reticulate patterns, so that the knob 5, the screw A10 and the screw B11 can be conveniently screwed.
The foregoing description of the preferred embodiments of the utility model is not intended to limit the utility model to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and scope of the utility model are intended to be included within the scope of the utility model.
Claims (7)
1. The utility model provides a manual baffle valve of high vacuum, includes valve body (1), fixed mounting valve gap (2) on valve body (1) right side, fixed mounting thread bush (3) on valve gap (2), with thread bush (3) threaded connection's valve rod (4), fixed mounting at knob (5) of valve rod (4) right-hand member, be located inside closing plate (6) of valve body (1), valve rod (4) left end stretches into valve body (1) inside and closing plate (6) fixed rotation are connected, its characterized in that: the novel valve cover is characterized in that a locking assembly is arranged on the valve cover (2), the locking assembly comprises a rotating sleeve (7) sleeved on the threaded sleeve (3), a transverse bar (8) fixedly arranged on one side of the rotating sleeve (7) far away from the threaded sleeve (3), a locking screw sleeve (9) fixedly arranged on the transverse bar (8), a screw A (10) and a screw B (11), a screw hole A (12) is formed in the valve cover (2), a through hole A (13) overlapped with the screw hole A (12) in position is formed in the transverse bar (8), the screw A (10) is inserted into the through hole A (13) and then screwed into the screw hole A (12) to be fixedly connected with the valve cover (2), a through hole B (14) is formed in the knob (5), the through hole B (14) is overlapped with the position of the locking screw sleeve (9) when the through hole B (14) is overlapped with the position of the locking screw sleeve (9), and the screw B (11) is inserted into the through hole B (14) to be fixedly connected with the locking screw sleeve (9).
2. A high vacuum manual flapper valve as claimed in claim 1 wherein: the rotary sleeve (7) is uniformly provided with a circle of screw holes B (15) formed in the valve cover (2) in the circumferential direction, the diameters of the screw holes B (15) and the screw holes A (12) are the same, and when the baffle valve is in an open state, the positions of the through holes A (13) and the corresponding screw holes B (15) are overlapped, and the positions of the through holes B (14) and the locking screw sleeve (9) are overlapped.
3. A high vacuum manual flapper valve as claimed in claim 2 wherein: the novel screw thread sleeve is characterized in that a limiting piece (16) is fixedly arranged on the inner side wall of the rotating sleeve (7), a limiting groove (17) matched with the limiting piece (16) is formed in the screw thread sleeve (3), and the limiting piece (16) is inserted into the limiting groove (17) to be in contact connection with the screw thread sleeve (3).
4. A high vacuum manual flapper valve as claimed in claim 3 wherein: the sealing device is characterized in that a sealing assembly is arranged on the sealing plate (6), the sealing assembly comprises a sealing ring A (18) and a sealing ring B (19), a sealing groove A (20) and a sealing groove B (21) are formed in the sealing plate (6), and the sealing ring A (18) and the sealing ring B (19) are respectively inserted into the sealing groove A (20) and the sealing groove B (21) to be in abutting connection with the sealing plate (6).
5. The high vacuum manual flapper valve of claim 4 wherein: the sealing assembly further comprises a corrugated pipe (22) positioned inside the valve body (1), the valve rod (4) is positioned on the inner side of the corrugated pipe (22), one end of the corrugated pipe (22) is fixedly connected with the valve body (1), and the other end of the corrugated pipe (22) is fixedly connected with the right side wall of the sealing plate (6).
6. A high vacuum manual flapper valve as claimed in claim 5 wherein: the novel valve is characterized in that a spring (23) is arranged inside the valve body (1), the spring (23) is located between the corrugated pipe (22) and the valve rod (4), one end of the spring (23) is fixedly connected with the valve body (1), and the other end of the spring (23) is fixedly connected with the right side wall of the sealing plate (6).
7. The high vacuum manual flapper valve of claim 6, wherein: and knurling lines are respectively arranged on the knob (5) and screw heads of the screw A (10) and the screw B (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322239742.7U CN220505814U (en) | 2023-08-18 | 2023-08-18 | High-vacuum manual baffle valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322239742.7U CN220505814U (en) | 2023-08-18 | 2023-08-18 | High-vacuum manual baffle valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220505814U true CN220505814U (en) | 2024-02-20 |
Family
ID=89868545
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322239742.7U Active CN220505814U (en) | 2023-08-18 | 2023-08-18 | High-vacuum manual baffle valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220505814U (en) |
-
2023
- 2023-08-18 CN CN202322239742.7U patent/CN220505814U/en active Active
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| GR01 | Patent grant |