CN203656321U - Valve cover for check valve - Google Patents
Valve cover for check valve Download PDFInfo
- Publication number
- CN203656321U CN203656321U CN201320726151.6U CN201320726151U CN203656321U CN 203656321 U CN203656321 U CN 203656321U CN 201320726151 U CN201320726151 U CN 201320726151U CN 203656321 U CN203656321 U CN 203656321U
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- CN
- China
- Prior art keywords
- valve
- valve gap
- safety check
- water
- hole
- 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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Abstract
The utility model discloses a valve cover for a check valve. The valve cover comprises a valve cover body comprising a base and an end cover, wherein a first through hole is formed in the base, a cavity is formed in the end cover, the diameter of the opening of the cavity is identical to that of the first through hole, a drainage hole is formed in the wall of the cavity, a drainage channel is arranged on the drainage hole, and a detachable sealing cover is arranged at the end of the drainage channel relative to the drainage hole. The valve cover for the check valve is simple in structure and resistant to corrosion. Furthermore, the valve cover for the check valve can drain water in the check valve effectively and easily, therefore, impact force required by restarting of the check valve is reduced greatly, and corrosion to the structures in the check valve due to long-term immersion in the water is avoided.
Description
Technical field
The utility model relates to a kind of valve gap, relates in particular the valve gap that a kind of safety check is used.
Background technique
Safety check claims again check valve, one-way valve, one-way valve or check valve, and its effect is to ensure water directional flow in pipeline and the function of unlikely refluence; The bottom valve of water pump suction pipe also belongs to safety check class.Safety check is divided by structure, can be divided into three kinds of Lift check valve, Swing check valve and butterfly check valves.Swing check valve claims again one-way valve or check valve, and its effect is the aqueous reflux preventing in pipeline.Open-shut device is opened voluntarily or closes by water flow and strength, to prevent that valve that water flows backwards is on safety check.
Safety check was after using once, water outlet one end just can retain water, time one is long, water will erode the internal structure of safety check, the sealing of safety check is gone wrong, and after using once owing to there being the existence of water, again safety check is opened and just needed very large impact force, and extract water from water outlet, can make safety check open once again, water is poured in down a chimney into water intake, have an accident, although tearing valve gap open also can emit the water of safety check inside, but valve gap dismounting operation trouble is not said, the problem that just there will be sealing to decline after having dismantled often.
Model utility content
The deficiency existing for prior art, the purpose of this utility model is to provide one effectively safety check internal water to be emitted, the valve gap that longer a kind of safety check of life-span is used.
For achieving the above object, the utility model provides following technological scheme: the valve gap that a kind of safety check is used, comprise valve gap body, described valve gap body comprises base and end cap, and described base is provided with the first through hole, in described end cap, is provided with cavity, described cavity accent diameter is identical with the pore size of the first through hole, a described cavity chamber ancient piece of jade, round, flat and with a hole in its centre is provided with discharge orifice, and described discharge orifice is provided with discharge passage, and described discharge passage is provided with dismountable sealing cover with respect to discharge orifice one end.
By adopting technique scheme, in the time that there is water impact water intake one end of safety check, then the flap of safety check is opened because of the impact force of current, after a period of time, water intake current disappear, the flap of safety check is just shut under the effect of water hammer effect, anti-sealing pours in down a chimney into water intake, at this moment water just rests in the valve body of safety check, enter into the cavity the inside of end cap inside by the first through hole, at this moment just can open the sealing cover of discharge passage, water will enter discharge orifice, then in the valve body along discharge passage from safety check, emit, so just can prevent because water corrodes the internal structure of valve body for a long time at valve inner, and after water emits, state in hollow again in valve body, at this moment, water intake only needs the impact force of opening for the first time originally safety check just can open safety check, reduce the cost of the pressurized equipment of water intake, and water pipe can be connected on discharge passage, water is discharged into the place of appointment, can also clean by pressurized gas are filled with to discharge passage the inside of check valve body simultaneously, with regard to not needing, valve gap is removed and cleaned.
The utility model is further set to: described sealing cover and discharge passage are threaded connection.
By adopting technique scheme, sealing cover and discharge passage are threaded connection, so just can sealing cover be dismantled or be installed by rotary seal lid, and the sealing being threaded is generally all relatively good, the position connecting is also more firm, because being is threaded, so be also provided with screw thread on a passage ancient piece of jade, round, flat and with a hole in its centre for discharge passage, just can water pipe be installed on discharge passage by this screw thread, and not worry the problem of sealing.
The utility model is further set to: described base, end cap and discharge passage are integrated setting.
By adopting technique scheme, base, end cap and discharge passage are integrated setting, like this in the time producing this valve gap, only need to be moulded in mould the inside one, good airproof performance, and be not easy distortion while being subject to external force, can not damage because of each member connection structure valve gap causing that goes wrong.
The utility model is further set to: described base edge is provided with the second through hole connecting for screw.
By adopting technique scheme, base edge is provided with the second through hole connecting for screw, so just can base be fixed on valve body by screw, thereby valve gap is fixed on valve body, just can valve gap be installed or be disassembled from valve body by screwing and unscrew screw.
The utility model is further set to: described valve gap body inner side is all coated with stellite with surface.
By adopting technique scheme, valve gap body inner side is all coated with stellite with surface, and stellite is the cemented carbide of a kind of ability all kinds abrasion and corrosion and high temperature oxidation; So just can greatly increase the working life of valve gap.
Brief description of the drawings
Fig. 1 is the overall structure figure of the valve gap used of a kind of safety check of the present utility model;
Fig. 2 is the sectional view of the valve gap used of a kind of safety check of the present utility model.
In figure: 1, valve gap body; 11, base; 12, end cap; 111, the first through hole; 121, cavity; 1212, accent; 1211, discharge orifice; 12111, discharge passage; 2, sealing cover; 112, the second through hole.
Embodiment
Shown in Fig. 2, the valve gap that a kind of safety check of the present embodiment is used, comprise valve gap body 1, described valve gap body 1 comprises base 11 and end cap 12, described base 11 is provided with the first through hole 111, in described end cap 12, be provided with cavity 121, described cavity accent 1212 diameters are identical with the pore size of the first through hole 111, described cavity 121 chamber ancient piece of jade, round, flat and with a hole in its centres are provided with discharge orifice 1211, described discharge orifice 1211 is provided with discharge passage 12111, and described discharge passage 12111 is provided with dismountable sealing cover 2 with respect to discharge orifice 1211 one end.
By adopting technique scheme, in the time that there is water impact water intake one end of safety check, then the flap of safety check is opened because of the impact force of current, after a period of time, water intake current disappear, the flap of safety check is just shut under the effect of water hammer effect, anti-sealing pours in down a chimney into water intake, at this moment water just rests in the valve body of safety check, enter into cavity 121 the insides of end cap 12 inside by the first through hole 111, at this moment just can open the sealing cover 2 of discharge passage 12111, water will enter discharge orifice 1211, then in the valve body along discharge passage 12111 from safety check, emit, so just can prevent because water corrodes the internal structure of valve body for a long time at valve inner, and after water emits, state in hollow again in valve body, at this moment, water intake only needs the impact force of opening for the first time originally safety check just can open safety check, reduce the cost of the pressurized equipment of water intake, and water pipe can be connected on discharge passage 12111, water is discharged into the place of appointment, can also clean by pressurized gas are filled with to discharge passage 12111 inside of check valve body simultaneously, with regard to not needing, valve gap is removed and cleaned.
Described sealing cover 2 is threaded connection with discharge passage 12111.
By adopting technique scheme, sealing cover 2 is threaded connection with discharge passage 12111, so just can sealing cover 2 be dismantled or be installed by rotary seal lid 2, and the sealing being threaded is generally all relatively good, the position connecting is also more firm, because being is threaded, so be also provided with screw thread on a passage ancient piece of jade, round, flat and with a hole in its centre for discharge passage 12111, just can water pipe be installed on discharge passage 12111 by this screw thread, and not worry the problem of sealing.
Described base 11, end cap 12 and discharge passage are integrated setting.
By adopting technique scheme, base 11, end cap 12 and discharge passage are integrated setting, like this in the time producing this valve gap, only need to be moulded in mould the inside one, good airproof performance, and be not easy distortion while being subject to external force, can not damage because of each member connection structure valve gap causing that goes wrong.
Described base 11 edges are provided with the second through hole 122 connecting for screw.
By adopting technique scheme, base 11 edges are provided with the second through hole 122 connecting for screw, so just can base 11 be fixed on valve body by screw, thereby valve gap is fixed on valve body, just can valve gap be installed or be disassembled from valve body by screwing and unscrew screw.
Described valve gap body 1 inner side and surface are all coated with stellite.
By adopting technique scheme, valve gap body 1 inner side and surface are all coated with stellite, and stellite is the cemented carbide of a kind of ability all kinds abrasion and corrosion and high temperature oxidation; So just can greatly increase the working life of valve gap.
The utlity model has following advantage: simple in structure, corrosion-resistant, can simple and effective water be emitted from safety check inside, make safety check open once again needed impact force and greatly reduce, also make safety check internal structure can in water, not be corroded because of long period of soaking, in the time that there is water impact water intake one end of safety check, then the flap of safety check is opened because of the impact force of current, after a period of time, water intake current disappear, the flap of safety check is just shut under the effect of water hammer effect, anti-sealing pours in down a chimney into water intake, at this moment water just rests in the valve body of safety check, enter into cavity 121 the insides of end cap 12 inside by the first through hole 111, at this moment just can open the sealing cover 2 of discharge passage 12111, water will enter discharge orifice 1211, then in the valve body along discharge passage 12111 from safety check, emit, so just can prevent because water corrodes the internal structure of valve body for a long time at valve inner, and after water emits, state in hollow again in valve body, at this moment, water intake only needs the impact force of opening for the first time originally safety check just can open safety check, reduce the cost of the pressurized equipment of water intake, and water pipe can be connected on discharge passage 12111, water is discharged into the place of appointment, can also clean by pressurized gas are filled with to discharge passage 12111 inside of check valve body simultaneously, with regard to not needing, valve gap is removed and cleaned.
The above is only preferred implementation of the present utility model, and protection domain of the present utility model is also not only confined to above-described embodiment, and all technological schemes belonging under the utility model thinking all belong to protection domain of the present utility model.It should be pointed out that for those skilled in the art, in the some improvements and modifications that do not depart under the utility model principle prerequisite, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (5)
1. the valve gap that safety check is used, comprise valve gap body, it is characterized in that: described valve gap body comprises base and end cap, described base is provided with the first through hole, in described end cap, be provided with cavity, described cavity accent diameter is identical with the pore size of the first through hole, and a described cavity chamber ancient piece of jade, round, flat and with a hole in its centre is provided with discharge orifice, described discharge orifice is provided with discharge passage, and described discharge passage is provided with dismountable sealing cover with respect to discharge orifice one end.
2. the valve gap that a kind of safety check according to claim 1 is used, is characterized in that: described sealing cover and discharge passage are threaded connection.
3. the valve gap that a kind of safety check according to claim 2 is used, is characterized in that: described base, end cap and discharge passage are integrated setting.
4. the valve gap that a kind of safety check according to claim 3 is used, is characterized in that: described base edge is provided with the second through hole connecting for screw.
5. the valve gap that a kind of safety check according to claim 4 is used, is characterized in that: described valve gap body inner side is all coated with stellite with surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320726151.6U CN203656321U (en) | 2013-11-15 | 2013-11-15 | Valve cover for check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320726151.6U CN203656321U (en) | 2013-11-15 | 2013-11-15 | Valve cover for check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203656321U true CN203656321U (en) | 2014-06-18 |
Family
ID=50922709
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320726151.6U Expired - Fee Related CN203656321U (en) | 2013-11-15 | 2013-11-15 | Valve cover for check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203656321U (en) |
-
2013
- 2013-11-15 CN CN201320726151.6U patent/CN203656321U/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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140618 Termination date: 20191115 |