CN221034013U - Manual stop valve for gas pipeline - Google Patents
Manual stop valve for gas pipeline Download PDFInfo
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- CN221034013U CN221034013U CN202322783462.2U CN202322783462U CN221034013U CN 221034013 U CN221034013 U CN 221034013U CN 202322783462 U CN202322783462 U CN 202322783462U CN 221034013 U CN221034013 U CN 221034013U
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- 230000005540 biological transmission Effects 0.000 claims abstract description 52
- 238000007789 sealing Methods 0.000 claims abstract description 27
- 230000007704 transition Effects 0.000 claims description 45
- 238000009434 installation Methods 0.000 claims description 36
- 238000005096 rolling process Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 2
- 230000007246 mechanism Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
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Abstract
The utility model discloses a manual stop valve for a gas pipeline, which comprises a valve body assembly, a normally closed valve device, a lifting transmission device, a hand wheel power device and a locking device, wherein the valve body assembly is connected with the valve body assembly through a connecting rod; the lifting transmission device is arranged above the valve body assembly, and the power output end of the lifting transmission device is connected with the upper end of the normally closed valve closing device; the hand wheel power device is arranged on one side of the lifting transmission device, and the power output end of the hand wheel power device is connected with the power input end of the lifting transmission device; the locking device is arranged above the lifting transmission device. The gas pipeline can be always in a normally closed state under the normal state of the pipeline through the manual stop valve, the normally closed valve closing device can move in a one-way valve opening manner and can hover at any position, after the handle of the locking device is lifted, the locking of the one-way valve opening movement of the lifting transmission device is released, and the normally closed valve closing device automatically rebounds to an original sealing position to re-close the pipeline; the utility model has simple structure and stable effect.
Description
Technical Field
The utility model relates to the technical field of stop valves, in particular to a manual stop valve for a gas pipeline.
Background
In the current pipeline engineering, in the pipelines with the diameters of DN50 to DN200, the manual pipeline valves commonly used in engineering are required to be manually opened or closed when the pipelines are opened or closed, and the pipelines cannot be self-locked, so that the valve can be accidentally opened or closed under the condition of exceeding the rated pressure.
The emergency valve is in a normally closed state, when the pipeline is dangerous or dangerous to be relieved, the valve needs to be opened manually, when the valve is opened manually, the handle only rotates towards one direction, and when the crisis is relieved, the valve rotation stopping device can be lifted, and the valve automatically falls down to restore the normally closed state.
The disadvantages are:
① The traditional manual valve cannot be self-locked, and when the super-working condition occurs, the valve is likely to be turned after being impacted by medium pressure.
② The traditional manual valve has no normally closed function, and only presents an open or close state when manually rotated, and for some pipelines which need to be always in the close state, the possibility of manually opening the pipeline by mistake exists.
The cause is as follows: the traditional valve mechanism is simple, only a transmission device is arranged inside the traditional valve mechanism, and a locking mechanism is absent. In addition, the traditional valve lacks a normally closed function, and the valve cannot be fundamentally guaranteed to be in a safe state for some pipelines needing the normally closed state.
Therefore, there is a need to develop a manual shut-off valve for a gas pipeline to solve the above problems.
Disclosure of Invention
The utility model aims to solve the problems and designs a manual stop valve for a gas pipeline.
The utility model realizes the above purpose through the following technical scheme:
A manual shut-off valve for a gas pipeline, comprising:
A valve body assembly;
Normally closed valve means; the normally-closed valve device is arranged in the valve body assembly and is used for opening and closing an air passage in the valve body assembly;
A pull-up transmission device for pulling up and down the normally closed valve device; the lifting transmission device is arranged above the valve body assembly, and the power output end of the lifting transmission device is connected with the upper end of the normally closed valve closing device;
A hand wheel power device; the hand wheel power device is arranged on one side of the lifting transmission device, and the power output end of the hand wheel power device is connected with the power input end of the lifting transmission device;
A locking device for locking the pulling transmission device in a single direction; the locking device is arranged above the lifting transmission device.
Specifically, the valve body assembly comprises a valve body and a valve cover; the normally-closed valve device comprises a mandrel and a sealing disc; the valve body is internally and transversely provided with an air passage, the upper end of the middle part of the valve body is provided with an opening, a valve cover is arranged above the opening of the valve body, the bottom of the valve cover is provided with a second installation cavity, a sealing disc can slide up and down and is arranged in the second installation cavity, the sealing disc is connected with the lower end of a mandrel, the upper end of the mandrel passes through the valve cover and then is connected with the power output end of a lifting transmission device, and the sealing disc slides to the bottom of the air passage to block the air passage.
Specifically, still be provided with first installation cavity, second spring in the valve gap, the top of valve gap is provided with the through-hole, first installation cavity, second installation cavity is laid from last to down in proper order, the through-hole, first installation cavity, second installation cavity communicate in proper order, the diameter of through-hole is less than the diameter of first installation cavity, the diameter of first installation cavity is less than the diameter of second installation cavity, wear out the setting in proper order from first installation cavity, the through-hole in the upper end of dabber, second spring housing is on the dabber, and the upper end of second spring is arranged in first installation cavity.
Specifically, the hand wheel power device comprises a hand wheel, a transition shaft and a connecting shaft; the lifting transmission device comprises a ratchet wheel, a rack, a guide wheel and a transmission gear; the center of the hand wheel is connected with the first end of the transition shaft, the second end of the transition shaft is connected with the first end of the connecting shaft, the second end of the connecting shaft is connected with the ratchet wheel, the ratchet wheel and the transmission gear are arranged on the same rotating shaft, the toothless side of the rack is in rolling contact with the guide wheel, the toothed side of the rack is meshed with the transmission gear, the rack is vertically arranged, and the lower end of the rack is connected with the upper end of the mandrel; the transition shaft is transversely arranged, and the transition shaft and the guide wheel are rotatably arranged at fixed positions.
Specifically, the locking device comprises a handle, a pawl fixing block, a first spring and a pawl, wherein the lower end of the handle is connected with the upper end of the pawl, the lower end of the pawl is matched with the ratchet wheel, the pawl fixing block is arranged at a fixed position, a vertical sliding groove is formed in the pawl fixing block, a through hole is formed in the top of the pawl fixing block and communicated with the upper end of the sliding groove, the diameter of the through hole is smaller than that of the sliding groove, a convex ring is arranged on the outer side wall of the lower portion of the pawl, and the pawl penetrates through the through hole and is slidably arranged in the sliding groove at the lower end; the spring is sleeved on the pawl and is arranged between the upper end of the convex ring and the upper end of the chute.
Specifically, the manual stop valve further comprises a shell, the shell comprises a first vertical plate, a second vertical plate, a transverse plate and a shell cover, the transverse plate is horizontally arranged above the valve cover, a first vertical through hole for a mandrel to pass through is formed in the transverse plate, the shell cover is arranged on the transverse plate, a second vertical through hole is formed in the top of the shell cover, a first horizontal through hole is formed in the side wall of the shell cover, the first vertical plate and the second vertical plate are vertically arranged above the transverse plate, the first vertical plate and the second vertical plate are arranged in parallel, the first vertical plate and the second vertical plate are connected through a plurality of struts, a guide wheel is rotatably arranged on the first vertical plate, a ratchet wheel, a rack, a guide wheel and a transmission gear are all arranged between the first vertical plate and the second vertical plate, a second horizontal through hole is formed in the second vertical plate, and a connecting shaft is rotatably arranged through the second horizontal through hole; the locking device comprises a first transition sleeve, a third vertical through hole is formed in the first transition sleeve, the first transition sleeve is arranged in the second vertical through hole, and the pawl can be vertically and slidably arranged in the third vertical through hole; the hand wheel power device comprises a second transition sleeve, a third horizontal through hole is formed in the second transition sleeve, the second transition sleeve is arranged in the first horizontal through hole, and the transition shaft is rotatably arranged in the third horizontal through hole.
The utility model has the beneficial effects that:
The gas pipeline can be always in a normally closed state under the normal state of the pipeline through the manual stop valve, when the hand wheel is manually rotated, the normally closed valve closing device can move in a one-way valve opening mode and can hover at any position, after the handle of the locking device is lifted, the one-way valve opening motion of the lifting transmission device is unlocked, and the normally closed valve closing device automatically rebounds to an original sealing position to reclose the pipeline; the application has simple structure and stable effect.
Drawings
FIG. 1 is a perspective view of the present application;
FIG. 2 is a cross-sectional view of the present application;
FIG. 3 is a schematic view of a pull-up gear according to the present application;
FIG. 4 is a schematic diagram of a hand wheel power plant according to the present application;
FIG. 5 is a schematic view of a locking device according to the present application;
FIG. 6 is a schematic diagram showing the cooperation between the pull-up transmission device and the locking device according to the present application;
FIG. 7 is a second schematic diagram of the cooperation of the pull-up mechanism and the locking mechanism according to the present application;
FIG. 8 is a schematic view of the pawl of the present application;
FIG. 9 is an exploded view of the pull-up actuator of the present application;
FIG. 10 is a schematic view of a normally closed valve device (valve-closed state) according to the present application;
FIG. 11 is a schematic view of a normally closed valve device (open state) according to the present application;
In the figure: 1. a valve body; 11. an airway; 12. a valve cover; 13. a first mounting cavity; 14. a second mounting cavity; 2. a housing; 21. a first riser; 22. a second riser; 23. a cross plate; 24. a cover; 3. a locking device; 31. a handle; 32. a first transition sleeve; 33. a pawl fixing block; 34. a first spring; 35. a pawl; 351. helical teeth; 352. a convex ring; 36. a first seal ring; 4. a hand wheel power device; 41. a hand wheel; 42. a second transition sleeve; 43. a transition shaft; 44. a connecting shaft; 45. a second seal ring; 5. lifting and pulling the transmission device; 51. a ratchet wheel; 52. a rack; 53. a guide wheel; 54. a transmission gear; 55. a support post; 6. normally closed valve means; 61. a mandrel; 62. a second spring; 63. and a sealing disk.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present utility model more clear, the technical solutions of 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. It will be apparent that the described embodiments are some, but not all, embodiments of the utility model. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.
In the description of the present utility model, it should be understood that the directions or positional relationships indicated by the terms "upper", "lower", "inner", "outer", "left", "right", etc. are based on the directions or positional relationships shown in the drawings, or the directions or positional relationships conventionally put in place when the inventive product is used, or the directions or positional relationships conventionally understood by those skilled in the art are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific direction, be configured and operated in a specific direction, and therefore should not be construed as limiting the present utility model.
Furthermore, the terms "first," "second," and the like, are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.
In the description of the present utility model, it should also be noted that, unless explicitly specified and limited otherwise, terms such as "disposed," "connected," and the like are to be construed broadly, and for example, "connected" may be either fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.
The following describes specific embodiments of the present utility model in detail with reference to the drawings.
As shown in fig. 1-2, a manual shut-off valve for a gas pipeline, comprising:
a valve body 1 assembly;
A normally closed valve device 6; the normally-closed valve device 6 is arranged in the valve body 1 assembly and is used for opening and closing an air passage 11 in the valve body 1 assembly;
A pull-up transmission device 5 for pulling up and down the normally closed valve device 6; the lifting transmission device 5 is arranged above the valve body 1 assembly, and the power output end of the lifting transmission device 5 is connected with the upper end of the normally closed valve closing device 6;
A hand wheel power device 4; the hand wheel power device 4 is arranged on one side of the lifting transmission device 5, and the power output end of the hand wheel power device 4 is connected with the power input end of the lifting transmission device 5;
a locking device 3 for locking the pulling transmission device 5 in a single direction; the locking device 3 is mounted above the lifting gear 5.
As shown in fig. 10-11, the valve body 1 assembly comprises a valve body 1 and a valve cover 12; the normally closed valve device 6 comprises a spindle 61, a sealing disc 63; an air passage 11 is transversely arranged in the valve body 1, the upper end of the middle part of the valve body 1 is opened, a valve cover 12 is covered and arranged above the opening of the valve body 1, a second installation cavity 14 is arranged at the bottom of the valve cover 12, a sealing disc 63 can slide up and down and is arranged in the second installation cavity 14, the sealing disc 63 is connected with the lower end of a mandrel 61, the upper end of the mandrel 61 passes through the valve cover 12 and then is connected with the power output end of the lifting transmission device 5, and the sealing disc 63 slides to the bottom of the air passage 11 to block the air passage 11. Wherein, as shown in fig. 11, in the valve opening state, the sealing disc 63 is completely lifted into the second mounting cavity 14, and the air passage 11 in the valve body 1 is completely unblocked; the valve is closed as shown in fig. 10, and the bottom of the sealing disc 63 is connected with the bottom of the air passage 11 to block the air passage 11.
As shown in fig. 10-11, a first installation cavity 13 and a second spring 62 are further arranged in the valve cover 12, a through hole is formed in the top of the valve cover 12, the through hole, the first installation cavity 13 and the second installation cavity 14 are sequentially arranged from top to bottom, the through hole, the first installation cavity 13 and the second installation cavity 14 are sequentially communicated, the diameter of the through hole is smaller than that of the first installation cavity 13, the diameter of the first installation cavity 13 is smaller than that of the second installation cavity 14, the upper end of the mandrel 61 sequentially penetrates out of the first installation cavity 13 and the through hole, the second spring 62 is sleeved on the mandrel 61, and the upper end of the second spring 62 is arranged in the first installation cavity 13. The second spring 62 is in a compressed state when the valve body 1 assembly is in both the valve-closing and valve-opening states, the second spring 62 being provided for the purpose of facilitating the fall back at the sealing disk 63.
As shown in fig. 3, 4, 6, 7 and 9, the hand wheel power device 4 comprises a hand wheel 41, a transition shaft 43 and a connecting shaft 44; the lifting transmission device 5 comprises a ratchet wheel 51, a rack 52, a guide wheel 53 and a transmission gear 54; the center of the hand wheel 41 is connected with the first end of the transition shaft 43, the second end of the transition shaft 43 is connected with the first end of the connecting shaft 44, the second end of the connecting shaft 44 is connected with the ratchet wheel 51, the ratchet wheel 51 and the transmission gear 54 are arranged on the same rotating shaft, the toothless side of the rack 52 is in rolling contact with the guide wheel 53, the toothed side of the rack 52 is meshed with the transmission gear 54, the rack 52 is vertically arranged, and the lower end of the rack 52 is connected with the upper end of the mandrel 61; the transition shaft 43 is transversely arranged, and the transition shaft 43 and the guide wheel 53 are rotatably arranged in a fixed position.
As shown in fig. 5, 6, 7 and 9, the locking device 3 comprises a handle 31, a pawl fixing block 33, a first spring 34 and a pawl 35, wherein the lower end of the handle 31 is connected with the upper end of the pawl 35, the lower end of the pawl 35 is matched with a ratchet wheel 51, the pawl fixing block 33 is fixed on a second vertical plate 22, a vertical chute is arranged on the pawl fixing block 33, a through hole is arranged at the top of the pawl fixing block 33 and communicated with the upper end of the chute, the diameter of the through hole is smaller than that of the chute, a convex ring 352 is arranged on the outer side wall of the lower part of the pawl 35, and the pawl 35 passes through the through hole and is slidably arranged in the chute at the lower end; the spring is sleeved on the pawl 35 and is arranged between the upper end of the convex ring 352 and the upper end of the chute. As shown in fig. 8, the bottom of the pawl 35 is provided with a bevel gear 351, the bevel gear 351 cooperates with the ratchet gear 51, so that the pawl 35 can normally rotate when contacting with the bevel surface of the bevel gear 351 during rotation of the ratchet gear 51, but the ratchet gear 51 cannot rotate when the ratchet gear 51 contacts with the vertical surface of the bevel gear 351, so that the sealing disc 63 can only move upwards and cannot be lowered when the locking device 3 is not intervened, and the sealing disc 63 can only move downwards when the locking device 3 is intervened and the limitation on the rotation direction of the ratchet gear 51 is canceled.
As shown in fig. 1-5, the manual stop valve further comprises a housing 2, the housing 2 comprises a first vertical plate 21, a second vertical plate 22, a horizontal plate 23 and a housing cover 24, the horizontal plate 23 is horizontally arranged above the valve cover 12, a first vertical through hole for a mandrel 61 to pass through is formed in the horizontal plate 23, the housing cover 24 is arranged on the horizontal plate 23, a second vertical through hole is formed in the top of the housing cover 24, a first horizontal through hole is formed in the side wall of the housing cover 24, the first vertical plate 21 and the second vertical plate 22 are vertically arranged above the horizontal plate 23, the first vertical plate 21 and the second vertical plate 22 are arranged in parallel, the first vertical plate 21 and the second vertical plate 22 are connected through a plurality of struts 55, a guide wheel 53 is rotatably arranged on the first vertical plate 21, a ratchet wheel 51, a rack 52, a guide wheel 53 and a transmission gear 54 are all arranged between the first vertical plate 21 and the second vertical plate 22, a second horizontal through hole is formed in the second vertical plate 22, and the connecting shaft 44 is rotatably arranged through the second horizontal through hole; the locking device 3 comprises a first transition sleeve 32, a third vertical through hole is formed in the first transition sleeve 32, the first transition sleeve 32 is arranged in the second vertical through hole, and a pawl 35 can be vertically and slidably arranged in the third vertical through hole; the hand wheel power device 4 comprises a second transition sleeve 42, a third horizontal through hole is formed in the second transition sleeve 42, the second transition sleeve 42 is installed in the first horizontal through hole, and a transition shaft 43 is rotatably arranged in the third horizontal through hole.
As shown in fig. 4, the first transition sleeve 32 includes a first ring, a second ring is protruding from the lower end of the first transition sleeve 32, the outer diameter of the second ring is smaller than that of the first ring, the outer diameter of the second ring is slightly smaller than that of the second vertical through hole, the second ring is installed in the second vertical through hole, the lower surface of the first ring is connected with the casing cover 24, an annular groove is provided on the lower surface of the first ring, and a first sealing ring 36 is placed in the annular groove for sealing.
As shown in fig. 5, the second transition sleeve 42 includes a third ring, a side surface of the second transition sleeve 42 is provided with a fourth ring in a protruding manner, an outer diameter of the fourth ring is smaller than an outer diameter of the third ring, an outer diameter of the fourth ring is slightly smaller than a diameter of the first horizontal through hole, the fourth ring is installed in the first horizontal through hole, a side surface of the third ring is connected with a side wall of the housing cover 24, an annular groove is formed in a side surface of the third ring, and a second sealing ring 45 is placed in the annular groove for sealing.
Working principle:
When the valve is in operation, the hand wheel 41 is rotated, the hand wheel 41 drives the transition shaft 43 to rotate, the transition shaft 43 drives the connecting shaft 44 to rotate, the connecting shaft 44 drives the ratchet wheel 51 to rotate, the ratchet wheel 51 drives the transmission gear 54 to rotate, the transmission gear 54 drives the rack 52 to move upwards, the rack 52 drives the mandrel 61 to move upwards, and the mandrel 61 drives the sealing disc 63 to move upwards so as to control the opening of the air passage 11 in the valve body 1; when the air passage 11 needs to be closed, the handle 31 is lifted upwards, the handle 31 drives the pawl 35 to move upwards, the pawl 35 does not limit the rotation direction of the ratchet wheel 51, the sealing disc 63 can move downwards to seal the air passage 11, when the sealing disc 63 does not need to move downwards, the handle 31 is released, and the pawl 35 moves downwards under the action of a spring to be matched with the ratchet wheel 51.
The foregoing is merely a preferred embodiment of the present utility model, and it should be noted that it will be apparent to those skilled in the art that several modifications and variations can be made without departing from the technical principle of the present utility model, and these modifications and variations should also be regarded as the scope of the utility model.
Claims (6)
1. A manual shut-off valve for a gas pipeline, comprising:
A valve body assembly;
Normally closed valve means; the normally-closed valve device is arranged in the valve body assembly and is used for opening and closing an air passage in the valve body assembly;
A pull-up transmission device for pulling up and down the normally closed valve device; the lifting transmission device is arranged above the valve body assembly, and the power output end of the lifting transmission device is connected with the upper end of the normally closed valve closing device;
A hand wheel power device; the hand wheel power device is arranged on one side of the lifting transmission device, and the power output end of the hand wheel power device is connected with the power input end of the lifting transmission device;
A locking device for locking the pulling transmission device in a single direction; the locking device is arranged above the lifting transmission device.
2. The manual shutoff valve for a gas pipeline of claim 1, wherein the valve body assembly comprises a valve body, a valve cover; the normally-closed valve device comprises a mandrel and a sealing disc; the valve body is internally and transversely provided with an air passage, the upper end of the middle part of the valve body is provided with an opening, a valve cover is arranged above the opening of the valve body, the bottom of the valve cover is provided with a second installation cavity, a sealing disc can slide up and down and is arranged in the second installation cavity, the sealing disc is connected with the lower end of a mandrel, the upper end of the mandrel passes through the valve cover and then is connected with the power output end of a lifting transmission device, and the sealing disc slides to the bottom of the air passage to block the air passage.
3. The manual stop valve for a gas pipeline according to claim 2, wherein a first installation cavity and a second spring are further arranged in the valve cover, a through hole is formed in the top of the valve cover, the through hole, the first installation cavity and the second installation cavity are sequentially arranged from top to bottom, the through hole, the first installation cavity and the second installation cavity are sequentially communicated, the diameter of the through hole is smaller than that of the first installation cavity, the diameter of the first installation cavity is smaller than that of the second installation cavity, the upper end of the mandrel sequentially penetrates out of the first installation cavity and the through hole, the second spring is sleeved on the mandrel, and the upper end of the second spring is arranged in the first installation cavity.
4. A manual shut-off valve for a gas pipeline according to claim 2 or 3, wherein the hand wheel power means comprises a hand wheel, a transition shaft, a connecting shaft; the lifting transmission device comprises a ratchet wheel, a rack, a guide wheel and a transmission gear; the center of the hand wheel is connected with the first end of the transition shaft, the second end of the transition shaft is connected with the first end of the connecting shaft, the second end of the connecting shaft is connected with the ratchet wheel, the ratchet wheel and the transmission gear are arranged on the same rotating shaft, the toothless side of the rack is in rolling contact with the guide wheel, the toothed side of the rack is meshed with the transmission gear, the rack is vertically arranged, and the lower end of the rack is connected with the upper end of the mandrel; the transition shaft is transversely arranged, and the transition shaft and the guide wheel are rotatably arranged at fixed positions.
5. The manual stop valve for a gas pipeline according to claim 4, wherein the locking device comprises a handle, a pawl fixing block, a first spring and a pawl, the lower end of the handle is connected with the upper end of the pawl, the lower end of the pawl is matched with the ratchet wheel, the pawl fixing block is fixedly arranged, a vertical chute is arranged on the pawl fixing block, a through hole is formed in the top of the pawl fixing block and communicated with the upper end of the chute, the diameter of the through hole is smaller than that of the chute, a convex ring is arranged on the outer side wall of the lower portion of the pawl, and the pawl is slidably arranged in the chute after passing through the through hole; the spring is sleeved on the pawl and is arranged between the upper end of the convex ring and the upper end of the chute.
6. The manual stop valve for a gas pipeline according to claim 5, further comprising a housing, wherein the housing comprises a first vertical plate, a second vertical plate, a transverse plate and a housing cover, the transverse plate is horizontally arranged above the valve cover, a first vertical through hole for a mandrel to pass through is formed in the transverse plate, the housing cover is arranged on the transverse plate, a second vertical through hole is formed in the top of the housing cover, a first horizontal through hole is formed in the side wall of the housing cover, the first vertical plate and the second vertical plate are vertically arranged above the transverse plate, the first vertical plate and the second vertical plate are arranged in parallel, the first vertical plate and the second vertical plate are connected through a plurality of support posts, a guide wheel is rotatably arranged on the first vertical plate, a ratchet wheel, a rack, a guide wheel and a transmission gear are all arranged between the first vertical plate and the second vertical plate, a second horizontal through hole is formed in the second vertical plate, and a connecting shaft is rotatably arranged through the second horizontal through hole; the locking device comprises a first transition sleeve, a third vertical through hole is formed in the first transition sleeve, the first transition sleeve is arranged in the second vertical through hole, and the pawl can be vertically and slidably arranged in the third vertical through hole; the hand wheel power device comprises a second transition sleeve, a third horizontal through hole is formed in the second transition sleeve, the second transition sleeve is arranged in the first horizontal through hole, and the transition shaft is rotatably arranged in the third horizontal through hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322783462.2U CN221034013U (en) | 2023-10-17 | 2023-10-17 | Manual stop valve for gas pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322783462.2U CN221034013U (en) | 2023-10-17 | 2023-10-17 | Manual stop valve for gas pipeline |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221034013U true CN221034013U (en) | 2024-05-28 |
Family
ID=91178868
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322783462.2U Active CN221034013U (en) | 2023-10-17 | 2023-10-17 | Manual stop valve for gas pipeline |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221034013U (en) |
-
2023
- 2023-10-17 CN CN202322783462.2U patent/CN221034013U/en active Active
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