CN203395290U - Small-caliber counter weight type check valve - Google Patents
Small-caliber counter weight type check valve Download PDFInfo
- Publication number
- CN203395290U CN203395290U CN201320448928.7U CN201320448928U CN203395290U CN 203395290 U CN203395290 U CN 203395290U CN 201320448928 U CN201320448928 U CN 201320448928U CN 203395290 U CN203395290 U CN 203395290U
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- CN
- China
- Prior art keywords
- rocker shaft
- valve body
- rocking bar
- small
- safety check
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- Expired - Fee Related
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Abstract
The utility model discloses a small-caliber counter weight type check valve. The small-caliber counter weight type check valve comprises a valve body, a rocking bar, a rocking bar shaft, a counter weight and a rocker arm, wherein the rocking bar is connected to the valve body through the rocking bar shaft; the valve body is provided with an axial hole and a stopping mechanism which is arranged at an end of the axial hole and limits the rocking bar shaft; the counter weight is connected to an end, which extends out of the valve body, of the rocking bar shaft through the rocker arm; and the rocking bar shaft comprises a round bar section which is connected to the valve body in a supporting manner; and the rocking bar is in key connection with the round bar section. Compared with the prior art, the small-caliber counter weight type check valve has the advantages that the rocking bar shaft of the check valve is made of a round-corner sectional bar, a matched portion of the valve body and the rocking bar shaft is processed simply, a matched portion of the rocking bar shaft and the rocking bar is in key connection, and the small-caliber counter weight type check valve is easy to process and low in use cost.
Description
Technical field
The utility model relates to water supply line valve, and specifically, the utility model relates to a kind of small-bore heavy hammer type safety check.
Background technique
Heavy hammer type safety check comprises valve body, flap, rocking bar, rocker shaft, weight and rocking arm, and rocking bar is connected on valve body by rocker shaft, and flap is fixed on rocking bar, and weight is connected to the end of rocker shaft by rocking arm.
At present, heavy hammer type safety check rocker shaft is hexagonal section, and user cost is high, and valve body and rocker shaft cooperation place processing difficulties are loaded down with trivial details.
Model utility content
Technical problem to be solved in the utility model is to provide a kind of small-bore heavy hammer type safety check, so that the processing of valve body and rocker shaft cooperation place becomes simple.
In order to solve the problems of the technologies described above, the technological scheme that the utility model adopts is: a kind of small-bore heavy hammer type safety check, comprise valve body, rocking bar, rocker shaft, weight and rocking arm, rocking bar is connected on valve body by rocker shaft, valve body is provided with axis hole and in the stop bit mechanism spacing to rocker shaft of axis hole end, weight is connected on the end that rocker shaft stretches out valve body by rocking arm, and rocker shaft comprises the round rod segment of support and connection on valve body, and rocking bar is that key is connected with this round rod segment.
Described stop bit mechanism comprise the cylindrical limiting stopper on the round rod segment that is located at described rocker shaft and be located at described valve body axis hole end for stopping the gland of limiting stopper, the end of axis hole is provided with step hole, limiting stopper is arranged in step hole.
Described gland is the cylindrical-shaped structure that longitudinal section is convex shape, and gland is provided with center hole, and the external part of gland inserts in the step hole of described axis hole.
Between the round rod segment of described rocker shaft and the external part of described gland, be provided with O type circle, the round rod segment of rocker shaft is provided with the seal groove for mounting O-shaped rings.
Described rocker shaft comprises the square block that is located at described round rod segment end, and described rocking arm is connected with this square block by square opening.
The bore of described safety check is 40 ~ 100mm.
The utility model adopts technique scheme, and compared with prior art, the rocker shaft of this safety check adopts rounded section, and valve body and the processing of rocker shaft cooperation place are simple, and rocker shaft and rocking bar cooperation place are key connecting, easily processing, and user cost is low.
Accompanying drawing explanation
Fig. 1 is the sectional view of safety check of the present utility model;
Fig. 2 is the plan view of safety check of the present utility model;
Fig. 3 is the structural representation of the rocker shaft of safety check of the present utility model;
Mark in above-mentioned figure is: 1, valve gap; 2, valve body, 3, flat key; 4, flap; 5, rocking bar; 6, lobe circle; 7, body circle; 8, rocker shaft; 9, O type circle; 10, minipad; 11, gland; 12, rocking arm; 13, weight; 14, round rod segment; 15, square block; 16, limiting stopper; 17, seal groove; 18, keyway.
Embodiment
Be a kind of small-bore heavy hammer type safety check of the present utility model as shown in Figure 1, Figure 2 and Figure 3, bore is 40 ~ 100mm, by valve body 2, valve gap 1, flat key 3, flap 4, rocking bar 5, lobe circle 6, body circle 7, rocker shaft 8, minipad 10, gland 11, rocking arm 12, weight 13 etc., formed, rocking bar 5 is connected on valve body 2 by rocker shaft 8, valve body 2 is provided with for placing the axis hole of rocker shaft 8 and in the stop bit mechanism spacing to rocker shaft 8 of axis hole end, weight 13 is fixed on rocking arm 12, and rocking arm 12 is fixed on the end that rocker shaft 8 stretches out valve body 2.The rocker shaft 8 of this safety check comprises the round rod segment 14 of support and connection on valve body 2, and rocking bar 5 and this round rod segment 14 are connected for key.The main body of rocker shaft 8 adopts rounded section to manufacture round bar shape, and cost of production is reduced, and makes valve body 2 and rocker shaft 8 cooperation places be easy to manufacturing.
Specifically, rocker shaft 8 connects rocking bar 5 by flat key 3, and the position near rear end on the round rod segment 14 of rocker shaft 8 is provided with keyway 18.
Stop bit mechanism comprise cylindrical limiting stopper on the round rod segment 14 that is located at rocker shaft 8 16 and be located at valve body 2 axis hole end for stopping the gland 11 of limiting stopper 16.The end of axis hole is provided with step hole, and limiting stopper 16 is arranged in step hole.Gland 11Wei longitudinal section is the cylindrical-shaped structure of convex shape, and gland 11 is provided with center hole, and the external part of gland 11 inserts in the step hole of axis hole, and the limiting stopper 16 on rocker shaft 8 is between step surface and the external part of gland 11.Rocker shaft 8 stop bit places adopt this stop bit mechanism, make assembling simple, have improved manufacturing efficiency.
Between the round rod segment 14 of rocker shaft 8 and the external part of gland 11, be also provided with O type circle 9, correspondingly on the round rod segment 14 of rocker shaft 8, be provided with vertically three for the annular seal groove 17 of mounting O-shaped rings 9.
This safety check is when passing through without medium, and weight 13 is freely sagging, and flap 4 is closed; When having medium to pass through, medium forward promotes flap 4, rocking bar 5, and rocking bar 5 produces rotating force by flat key 3 and rotates counterclockwise by rocker shaft 8, rocking arm 12, and medium is discharged.
By reference to the accompanying drawings the utility model is exemplarily described above; obviously the utility model specific implementation is not subject to the restrictions described above; as long as adopted the improvement of the various unsubstantialities that method of the present utility model design and technological scheme carry out; or without improving, design of the present utility model and technological scheme are directly applied to other occasion, all within protection domain of the present utility model.
Claims (6)
1. a small-bore heavy hammer type safety check, comprise valve body, rocking bar, rocker shaft, weight and rocking arm, rocking bar is connected on valve body by rocker shaft, valve body is provided with axis hole and in the stop bit mechanism spacing to rocker shaft of axis hole end, weight is connected on the end that rocker shaft stretches out valve body by rocking arm, it is characterized in that: described rocker shaft comprises the round rod segment of support and connection on described valve body, described rocking bar is that key is connected with this round rod segment.
2. small-bore heavy hammer type safety check according to claim 1, it is characterized in that: described stop bit mechanism comprise the cylindrical limiting stopper on the round rod segment that is located at described rocker shaft and be located at described valve body axis hole end for stopping the gland of limiting stopper, the end of axis hole is provided with step hole, and limiting stopper is arranged in step hole.
3. small-bore heavy hammer type safety check according to claim 2, is characterized in that: described gland is the cylindrical-shaped structure that longitudinal section is convex shape, and gland is provided with center hole, and the external part of gland inserts in the step hole of described axis hole.
4. small-bore heavy hammer type safety check according to claim 3, is characterized in that: between the round rod segment of described rocker shaft and the external part of described gland, be provided with O type circle, the round rod segment of rocker shaft is provided with the seal groove for mounting O-shaped rings.
5. small-bore heavy hammer type safety check according to claim 4, is characterized in that: described rocker shaft comprises the square block that is located at described round rod segment end, and described rocking arm is connected with this square block by square opening.
6. according to the arbitrary described small-bore heavy hammer type safety check of claim 1 to 4, it is characterized in that: the bore of described safety check is 40 ~ 100mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320448928.7U CN203395290U (en) | 2013-07-25 | 2013-07-25 | Small-caliber counter weight type check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320448928.7U CN203395290U (en) | 2013-07-25 | 2013-07-25 | Small-caliber counter weight type check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203395290U true CN203395290U (en) | 2014-01-15 |
Family
ID=49906823
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320448928.7U Expired - Fee Related CN203395290U (en) | 2013-07-25 | 2013-07-25 | Small-caliber counter weight type check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203395290U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104329472A (en) * | 2014-11-14 | 2015-02-04 | 中冶焦耐工程技术有限公司 | High-temperature flap valve |
-
2013
- 2013-07-25 CN CN201320448928.7U patent/CN203395290U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104329472A (en) * | 2014-11-14 | 2015-02-04 | 中冶焦耐工程技术有限公司 | High-temperature flap valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140115 Termination date: 20160725 |