CN212028713U - Anti-false opening precision bypass valve rod - Google Patents
Anti-false opening precision bypass valve rod Download PDFInfo
- Publication number
- CN212028713U CN212028713U CN202020669657.8U CN202020669657U CN212028713U CN 212028713 U CN212028713 U CN 212028713U CN 202020669657 U CN202020669657 U CN 202020669657U CN 212028713 U CN212028713 U CN 212028713U
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- China
- Prior art keywords
- valve rod
- handle
- lead screw
- bypass valve
- knob
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- Preventing Unauthorised Actuation Of Valves (AREA)
- Mechanically-Actuated Valves (AREA)
Abstract
The utility model discloses a prevent accurate bypass valve rod of mistake division, establish the handle in valve rod body upper end including valve rod body and cover, the upper end of valve rod body is along radially being equipped with a plurality of locating hole, the handle includes the handle body, this internal cavity structure that is of handle, and be equipped with a plurality of outstanding screw thread seats on the cavity inner wall, with the screw thread seat cooperation ground, this internal threaded lead screw of wearing to be equipped with of handle, the front end of lead screw is equipped with one and can inserts the locating pin of locating hole, the tail end of lead screw is equipped with a spline, handle body afterbody is equipped with a rotatable knob, in the knob, be equipped with can with spline fit's logical groove. The utility model discloses a prevent that open by mistake accurate bypass valve rod structure is ingenious, through make ingenious design on valve rod and handle, can avoid the mistake to open or close the valve by furthest, and the practicality is strong, is worth promoting.
Description
Technical Field
The utility model relates to the technical field of valves, especially, relate to an accurate bypass valve rod is opened to mistake proofing.
Background
The bypass valve is widely applied to various fields as a valve arranged on a bypass pipeline, and as the bypass valve is used as a safety guarantee, the requirements of the industry on the service life and the reliability of the bypass valve are high, particularly the bypass valve is used for precise instruments, a valve rod is an important part of the valve and is used for transmission, an actuating mechanism or a handle is connected, and a valve core is directly driven to move or rotate under the valve rod so as to realize the opening and closing or adjusting effect of the valve. For convenient adjustment, the valve rod is externally provided with a valve rod handle, but the handle has the possibility of being misoperated, and more improved designs are needed to avoid the problem to the maximum extent.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a prevent accurate bypass valve rod of mistake opening is provided.
The utility model discloses a realize through following technical scheme:
prevent mistake and open accurate bypass valve rod, establish the handle in valve rod body upper end including valve rod body and cover, the upper end of valve rod body radially is equipped with a plurality of locating hole, the handle includes the handle body, this internal cavity structure that is of handle, and be equipped with a plurality of outstanding screw thread seats on the cavity inner wall, with screw thread seat cooperation ground, this internal threaded lead screw that wears to be equipped with of handle, the front end of lead screw is equipped with a locating pin that can insert the locating hole, the tail end of lead screw is equipped with a spline, handle body afterbody is equipped with a rotatable knob, in the knob, be equipped with can with spline fit's logical groove.
Preferably, the knob is clamped at the tail part of the handle body through a clamping spring.
Preferably, the handle body is internally provided with 2 protruding thread seats
When the valve needs to be opened or closed, the knob is rotated firstly, when the knob is driven, the screw rod 6 with the spline moves forwards along the thread seat in the through groove until the positioning pin at the front end of the screw rod is inserted into the positioning hole in the valve rod body, then the handle is pulled, the valve rod body is rotated, and the valve is opened or closed.
At ordinary times when the operation is not needed, the knob is screwed to keep the positioning pin at the front end of the screw rod to be separated from the positioning hole, and therefore, even if the handle is pulled by mistake, the valve cannot be opened.
The utility model has the advantages that:
the utility model discloses a prevent that open by mistake accurate bypass valve rod structure is ingenious, through make ingenious design on valve rod and handle, can avoid the mistake to open or close the valve by furthest, and the practicality is strong, is worth promoting.
Drawings
For ease of illustration, the invention is described in detail by the following specific examples and figures.
Fig. 1 is a schematic perspective view of the present invention;
FIG. 2 is a schematic view of the knob of FIG. 1 when unscrewed;
fig. 3 is a schematic structural view of the positioning pin inserted into the positioning hole.
Detailed Description
As shown in fig. 1-3, the anti-false-opening precision bypass valve rod comprises a valve rod body 1 and a handle 3 sleeved on the upper end of the valve rod body 1, wherein a plurality of positioning holes 2 are radially arranged at the upper end of the valve rod body 1, the handle 3 comprises a handle body 4, a cavity structure is arranged in the handle body 4, 2 protruding thread seats 5 are arranged on the inner wall of the cavity, a threaded lead screw 6 is arranged in the handle body 4 in a penetrating manner in cooperation with the thread seats 5, a positioning pin 7 capable of being inserted into the positioning holes 2 is arranged at the front end of the lead screw 6, a spline 8 is arranged at the tail end of the lead screw 6, a rotatable knob 10 is clamped at the tail part of the handle body 4 through a clamp spring 9, and a through groove 11 capable of being matched with the spline 8 is arranged in the.
When the valve needs to be opened or closed, the knob 10 is rotated firstly, and when the knob 10 is driven, the screw rod 6 with the spline moves forwards along the threaded seat 5 in the through groove 11 until the positioning pin 7 at the front end of the screw rod 6 is inserted into the positioning hole 2 on the valve rod body, and then the handle 3 is pulled to rotate the valve rod body 1 to open or close the valve.
In normal times when the operation is not needed, the knob 10 is screwed to keep the positioning pin 7 at the front end of the lead screw 6 to be separated from the positioning hole 2, so that the valve cannot be opened even if the handle 3 is pulled by mistake.
The utility model discloses a prevent that open by mistake accurate bypass valve rod structure is ingenious, through make ingenious design on valve rod and handle, can avoid the mistake to open or close the valve by furthest, and the practicality is strong, is worth promoting.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that are not thought of through the creative work should be covered within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope defined by the claims.
Claims (3)
1. Prevent mistake and open accurate bypass valve rod, its characterized in that establishes the handle in valve rod body upper end including valve rod body and cover, the upper end of valve rod body radially is equipped with a plurality of locating hole, the handle includes the handle body, this internal cavity structure that is of handle, and be equipped with a plurality of outstanding screw thread seats on the cavity inner wall, with the screw thread seat cooperation ground, wear to be equipped with a threaded lead screw in the handle body, the front end of lead screw is equipped with a locating pin that can insert the locating hole, the tail end of lead screw is equipped with a spline, handle body afterbody is equipped with a rotatable knob, in the knob, be equipped with can with spline fit's logical groove.
2. The anti-false-opening precision bypass valve rod according to claim 1, wherein the knob is clamped at the tail of the handle body by a clamp spring.
3. The anti-false-opening precision bypass valve stem according to claim 1, wherein 2 protruding threaded seats are provided in the handle body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020669657.8U CN212028713U (en) | 2020-04-28 | 2020-04-28 | Anti-false opening precision bypass valve rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020669657.8U CN212028713U (en) | 2020-04-28 | 2020-04-28 | Anti-false opening precision bypass valve rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212028713U true CN212028713U (en) | 2020-11-27 |
Family
ID=73496238
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020669657.8U Active CN212028713U (en) | 2020-04-28 | 2020-04-28 | Anti-false opening precision bypass valve rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212028713U (en) |
-
2020
- 2020-04-28 CN CN202020669657.8U patent/CN212028713U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |