CN203395289U - Large-diameter heavy-hammer type check valve - Google Patents
Large-diameter heavy-hammer type check valve Download PDFInfo
- Publication number
- CN203395289U CN203395289U CN201320448876.3U CN201320448876U CN203395289U CN 203395289 U CN203395289 U CN 203395289U CN 201320448876 U CN201320448876 U CN 201320448876U CN 203395289 U CN203395289 U CN 203395289U
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- CN
- China
- Prior art keywords
- rocker shaft
- valve body
- safety check
- rocker
- round rod
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Valve-Gear Or Valve Arrangements (AREA)
Abstract
The utility model discloses a large-diameter heavy-type check valve comprising a valve body, a rocker, a rocker shaft, a heavy hammer and a rocker arm. The rocker is connected onto the valve body through the rocker shaft, the valve body is provided with a shaft hole and a check mechanism for limiting the rocker at the end portion of the shaft hole, and the heavy hammer is connected to the end portion, extending out of the valve body, of the rocker shaft through the rocker. The rocker shaft comprises a round-bar section connected to the valve body in a supported manner, and the rocker is in key connection with the round-bar section. Compared with the prior art, the large-diameter heavy-hammer type check valve has the advantages that the rocker shaft of the check valve is made of a rounded section, and a cooperating part of the valve body and the rocker shaft which are in key connection is easy to process, so that processing is easy, and use cost is low.
Description
Technical field
The utility model relates to water supply line valve, and specifically, the utility model relates to a kind of heavy caliber 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 heavy caliber 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 heavy caliber 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 125 ~ 400mm.
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 heavy caliber heavy hammer type safety check of the present utility model as shown in Figure 1, Figure 2 and Figure 3, bore is 125 ~ 400mm, 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.
Rocker shaft 8 also comprises the square block 15 of the front end that is located at round rod segment 14, and rocking arm 12 is connected with this square block 15 by the square opening of its upper setting, and by fastening nuts on rocker shaft 8.
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 heavy caliber 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. heavy caliber 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. heavy caliber 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. heavy caliber 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. heavy caliber 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 heavy caliber heavy hammer type safety check of claim 1 to 4, it is characterized in that: the bore of described safety check is 125 ~ 400mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320448876.3U CN203395289U (en) | 2013-07-25 | 2013-07-25 | Large-diameter heavy-hammer type check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320448876.3U CN203395289U (en) | 2013-07-25 | 2013-07-25 | Large-diameter heavy-hammer type check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203395289U true CN203395289U (en) | 2014-01-15 |
Family
ID=49906822
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320448876.3U Expired - Fee Related CN203395289U (en) | 2013-07-25 | 2013-07-25 | Large-diameter heavy-hammer type check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203395289U (en) |
-
2013
- 2013-07-25 CN CN201320448876.3U patent/CN203395289U/en not_active Expired - Fee Related
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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 |
Granted publication date: 20140115 Termination date: 20160725 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |