CN214063883U - Double-clip type lifting, rotary starting double-holding check valve - Google Patents
Double-clip type lifting, rotary starting double-holding check valve Download PDFInfo
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- CN214063883U CN214063883U CN202023080956.7U CN202023080956U CN214063883U CN 214063883 U CN214063883 U CN 214063883U CN 202023080956 U CN202023080956 U CN 202023080956U CN 214063883 U CN214063883 U CN 214063883U
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Abstract
The utility model provides a clamp type lifting and rotary starting double-holding check valve, belonging to the valve field, comprising a valve body, a left valve plate, a right valve plate and a valve shaft, wherein the valve body is internally provided with lining glue, and the left valve plate and the right valve plate are pressed and covered on the lining glue after being opened to cut and seal the drift diameter of the valve body; one end of each of the left valve plate and the right valve plate is hinged to the valve shaft, and the valve shaft is provided with a return spring for closing and resetting the left valve plate and the right valve plate; the valve shaft is characterized in that the two ends of the valve shaft extend into the valve body, the valve body is provided with a long circular adjusting hole, the longitudinal central line of the adjusting hole is parallel to the axis of the valve body, the outer ring of the adjusting hole is provided with a sealing plug, the sealing plug positions the valve shaft, and a sealing ring is arranged between the outer ring of the sealing plug and the valve body. The utility model discloses flow area when can increase substantially the valve is opened entirely reduces the flow resistance of medium, moreover, the goodness of fit of the sealed face of automatic adjustment valve plate and the sealed face of lining glue when the valve is closed for it is sealed more reliable.
Description
Technical Field
The utility model belongs to the valve field relates to a check valve, especially relates to double-duty check valve of wafer formula lift, swing.
Background
The check valve is a valve with a circular valve clack and acts by self weight and medium pressure to block the medium from flowing backwards. Check valves of this type function to allow flow of the medium in one direction only, but to prevent flow in the opposite direction. Typically such valves are self-actuating, with the flap opening under the pressure of a fluid flowing in one direction; when the fluid flows in the opposite direction, the valve flap is combined by the fluid pressure and the self-weight of the valve flap to act on the valve seat, thereby cutting off the flow.
The check valve belongs to the automatic valve class, also known as check valve, reflux valve or isolating valve. The valve clack motion mode is divided into lifting type and swing type. The lift check valve is similar in structure to the stop valve and only lacks a valve rod that drives the valve flap. The medium flows in from the inlet end (lower side) and flows out from the outlet end (upper side). The valve is opened when the inlet pressure is greater than the sum of the weight of the flap and its flow resistance. Otherwise, the valve is closed when the medium flows backwards. Swing check valves have a flap that is tilted and can pivot, and operate on a similar principle to lift check valves. The check valve is commonly used as a bottom valve of a water pumping device and can prevent the backflow of water. The check valve and the stop valve are combined for use, and the safety isolation effect can be achieved. The disadvantages are high resistance and poor sealing performance when closed.
SUMMERY OF THE UTILITY MODEL
The to-be-solved problem of the utility model is to provide wafer formula lift, swing two engine check valves, flow area when can increasing substantially the valve is opened entirely reduces the flow resistance of medium, moreover, the goodness of fit of the sealed face of automatic adjustment valve plate and the sealed face of valve body lining glue when the valve is closed for it is sealed more reliable.
In order to solve the technical problem, the utility model discloses a technical scheme is: the double-clamping type lifting and swing double-lift check valve comprises a valve body, a left valve plate, a right valve plate and a valve shaft, wherein lining rubber is arranged in the valve body, and the left valve plate and the right valve plate are pressed on the lining rubber to cut and seal the drift diameter of the valve body after being opened;
one end of each of the left valve plate and the right valve plate is hinged to the valve shaft, and the valve shaft is provided with a return spring for closing and returning the left valve plate and the right valve plate;
the two ends of the valve shaft extend into the valve body, an oblong adjusting hole is formed in the valve body, the longitudinal central line of the adjusting hole is parallel to the axis of the valve body, a sealing plug is arranged on the outer ring of the adjusting hole and used for positioning the valve shaft, and a sealing ring is arranged between the outer ring of the sealing plug and the valve body.
Furthermore, the sealing plugs and the sealing rings are arranged in a matched mode to form two sets, and one set is arranged at one end of each valve shaft.
Furthermore, the valve body is provided with a positioning hole, the sealing plug is arranged in the positioning hole and in clearance fit with the positioning hole, the sealing plug is oval, and the sectional area of the sealing plug is larger than that of the adjusting hole.
Furthermore, the outer edge of the sealing plug and the outer edge of the adjusting hole are arranged at equal intervals.
Furthermore, the end face of the sealing plug and the outer surface of the valve body are arranged in a parallel and level mode, a gland plate is arranged on the outer side of the sealing plug and fixed on the valve body through two screws, and the gland plate is attached to the sealing plug and located.
Furthermore, an avoiding chamfer is arranged on the outer ring of one side, close to the adjusting hole, of the sealing plug.
Further, reset spring with the coaxial setting of valve shaft, reset spring is torsional spring structure and both ends and extends the setting towards opposite direction, one end with left valve plate is fixed to be set up, the other end with right valve plate is fixed to be set up.
Furthermore, a shoulder is arranged on the valve body, the lining rubber is axially positioned through a shoulder structure, and sealing bulges are arranged at positions of the lining rubber corresponding to the left valve plate and the right valve plate.
Furthermore, the upper and lower ends that the left valve plate is close to the valve side are equipped with first articulated axle sleeve respectively, the upper and lower ends that the right valve plate is close to the valve side are equipped with the articulated axle sleeve of second respectively, first articulated axle sleeve and the dislocation set of the articulated axle sleeve of second, be equipped with first packing ring between first articulated shaft and the second articulated shaft, first packing ring with the coaxial setting of valve shaft.
Furthermore, a second gasket is arranged between the first hinge shaft sleeve close to one side of the return spring and the return spring, a second gasket is arranged between the second hinge shaft sleeve close to one side of the return spring and the return spring, and the second gasket is arranged coaxially with the valve shaft.
Compared with the prior art, the utility model has the advantages and positive effect as follows.
1. The structure of the utility model can realize synchronous lifting and swing under the action of the medium, thus the design can greatly increase the flow area when the valve is fully opened, reduce the flow resistance of the medium, and automatically adjust the goodness of fit between the sealing surface of the valve plate and the sealing surface of the valve body lining rubber when the valve is closed, so that the sealing is more reliable;
2. this application sets up reset spring, all has the effect that resets to left valve plate and right valve plate, and under the closed condition, the medium is pressed left valve plate, right valve plate and is covered, and the effect of reset spring is added simultaneously, and the increase is to the pre-pressure of lining glue, the simple structure of whole valve, and the equipment is convenient, and the leakproofness is good moreover.
Drawings
The accompanying drawings, which form a part hereof, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without undue limitation. In the drawings:
fig. 1 is a schematic structural view of the dual-holding check valve of the present invention;
FIG. 2 is a front view of the dual-check valve of the present invention;
fig. 3 is a cross-sectional view of fig. 2, taken along line C-C, in accordance with the present invention;
figure 4 is a detailed view of section a of figure 3 of the present invention;
fig. 5 is a schematic structural view of the sealing plug of the present invention;
fig. 6 is a schematic structural view of the rubber lining of the present invention.
Reference numerals:
1. a valve body; 11. an adjustment hole; 12. positioning holes; 2. a left valve plate; 21. a first hinge bush; 3. a right valve plate; 31. a second hinge sleeve; 4. a valve stem; 5. a first gasket; 6. a second gasket; 7. sealing the plug; 71. avoiding and chamfering; 8. a seal ring; 9. pressing a cover plate; 10. a return spring; 20. lining with rubber; 201. and sealing the protrusion.
Detailed Description
It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.
The following detailed description of the embodiments of the present invention will be made with reference to the accompanying drawings.
As shown in fig. 1-6, the utility model relates to a double-clip type lifting and swing check valve, which comprises a valve body 1, a left valve plate 2, a right valve plate 3 and a valve shaft, wherein a lining rubber 20 is arranged in the valve body 1, and the left valve plate 2 and the right valve plate 3 are pressed on the lining rubber 20 after being opened to cut and seal the drift diameter of the valve body 1;
one end of each of the left valve plate 2 and the right valve plate 3 is hinged to the valve shaft, the valve shaft is provided with a return spring 10 for closing and resetting the left valve plate 2 and the right valve plate 3, and in an opening state, the left valve plate 2 and the right valve plate 3 extrude the return spring 10 of a torsion spring structure, so that the flow area of the valve when the valve is fully opened is increased;
the two ends of the valve shaft extend into the valve body 1, the long circular adjusting hole 11 is formed in the valve body 1, the longitudinal central line of the adjusting hole 11 is parallel to the axis of the valve body 1, the sealing plug 7 is arranged on the outer ring of the adjusting hole 11, the sealing plug 7 is used for positioning the valve shaft, the sealing ring 8 is arranged between the outer ring of the sealing plug 7 and the valve body 1, the sealing performance between the valve shaft and the valve body 1 is guaranteed, and the sealing performance of the valve shaft relative to the valve body 1 in a lifting adjusting state is achieved.
Preferably, the sealing plugs 7 and the sealing rings 8 are arranged in a matched mode to form two sets, one end of each valve shaft is provided with one set, the structure is the same, unified manufacturing is facilitated, the specification types of products are reduced, and then the production and manufacturing cost is reduced.
Preferably, the valve body 1 is provided with a positioning hole 12, the sealing plug 7 is arranged in the positioning hole 12 and is in clearance fit with the positioning hole 12, the sealing plug 7 is oval, and the sectional area of the sealing plug 7 is larger than that of the adjusting hole 11; preferably, the outer edge of the sealing plug 7 and the outer edge of the adjusting hole 11 are arranged at equal intervals, so that the assembly is more convenient and quicker.
Preferably, the end face of the sealing plug 7 is flush with the outer surface of the valve body 1, a gland plate 9 is arranged on the outer side of the sealing plug 7, the gland plate 9 is fixed on the valve body 1 through two screws, and the gland plate 9 is attached to the sealing plug 7 to position the sealing plug 7, so that the positioning firmness is improved.
Preferably, the outer ring of one side of the sealing plug 7 close to the adjusting hole 11 is provided with a position-avoiding chamfer 71, so that vacuum formation between the sealing plug 7 and the valve body 1 is avoided, assembly in place is guaranteed, and assembly efficiency is improved.
Preferably, reset spring 10 and the coaxial setting of valve shaft, reset spring 10 are the extension setting of torsional spring structure and both ends towards opposite direction, and one end and the fixed setting of left valve plate 2, the other end and the fixed setting of right valve plate 3 guarantee the firm nature that reset spring 10 and left valve plate 2, right valve plate 3 are connected.
Preferably, the valve body 1 is provided with a shoulder, the lining rubber 20 is axially positioned through the shoulder structure, and the positions of the lining rubber 20 corresponding to the left valve plate 2 and the right valve plate 3 are provided with sealing protrusions 201 to improve the sealing performance.
Preferably, the upper end and the lower end of the left valve plate 2 close to the valve side are respectively provided with a first hinge shaft sleeve 21, the upper end and the lower end of the right valve plate 3 close to the valve side are respectively provided with a second hinge shaft sleeve 31, the first hinge shaft sleeve 21 and the second hinge shaft sleeve 31 are arranged in a staggered manner, a first gasket 5 is arranged between the first hinge shaft and the second hinge shaft, the first gasket 5 and the valve shaft are coaxially arranged and arranged in a staggered manner, so that the balanced stress of the upper part, the lower part, the left part and the right part of the valve shaft is ensured, and the service life of the valve shaft is prolonged; more preferably, a second gasket 6 is arranged between the first hinge shaft sleeve 21 and the return spring 10 on the side close to the return spring 10, a second gasket 6 is arranged between the second hinge shaft sleeve 31 and the return spring 10 on the side close to the return spring 10, and the second gasket 6 is arranged coaxially with the valve shaft, so that the stability of the positioning of the return spring 10, the first hinge shaft sleeve 21 and the second hinge shaft sleeve 31 in the axial direction of the valve shaft is ensured.
In the actual working process, the middle part of the valve body 1 is provided with an adjusting hole 11 for lifting the valve shaft, the outer end of the adjusting hole 11 is provided with a sealing plug 7, the valve shaft, the valve plate, the reset spring 10, the first gasket 5 and the second gasket 6 form a lifting and swing structure, and synchronous lifting and swing can be realized under the action of a medium. The design can greatly increase the flow area when the valve is fully opened, reduce the flow resistance of the medium, and automatically adjust the goodness of fit between the sealing surface of the valve plate and the sealing surface of the upper lining rubber 20 of the valve body 1 when the valve is closed, so that the sealing is more reliable.
While one embodiment of the present invention has been described in detail, the description is only a preferred embodiment of the present invention, and should not be considered as limiting the scope of the present invention. All the equivalent changes and improvements made according to the application scope of the present invention should still fall within the patent coverage of the present invention.
Claims (10)
1. The double-clip type lifting and swing check valve is characterized in that: the valve comprises a valve body, a left valve plate, a right valve plate and a valve shaft, wherein lining rubber is arranged in the valve body, and the left valve plate and the right valve plate are pressed on the lining rubber to cut and seal the drift diameter of the valve body after being opened;
one end of each of the left valve plate and the right valve plate is hinged to the valve shaft, and the valve shaft is provided with a return spring for closing and returning the left valve plate and the right valve plate;
the two ends of the valve shaft extend into the valve body, an oblong adjusting hole is formed in the valve body, the longitudinal central line of the adjusting hole is parallel to the axis of the valve body, a sealing plug is arranged on the outer ring of the adjusting hole and used for positioning the valve shaft, and a sealing ring is arranged between the outer ring of the sealing plug and the valve body.
2. The wafer style lift, swing check valve of claim 1, wherein: the sealing plugs and the sealing rings are arranged in a matched mode to form two sets, and one set is arranged at one end of each valve shaft.
3. The wafer style lift, swing check valve of claim 1, wherein: the valve body is provided with a positioning hole, the sealing plug is arranged in the positioning hole and in clearance fit with the positioning hole, the sealing plug is oval, and the sectional area of the sealing plug is larger than that of the adjusting hole.
4. The wafer style lift, swing check valve of claim 3, wherein: the outer edge of the sealing plug and the outer edge of the adjusting hole are arranged at equal intervals.
5. The wafer-type lift, swing check valve according to any of claims 1-3, characterized in that: the end face of the sealing plug and the outer surface of the valve body are arranged in a parallel and level mode, a gland plate is arranged on the outer side of the sealing plug and fixed on the valve body through two screws, and the gland plate is attached to the sealing plug and located.
6. The wafer style lift, swing check valve of claim 5, wherein: and an avoiding chamfer is arranged on the outer ring of one side, close to the adjusting hole, of the sealing plug.
7. The wafer-type lift, swing check valve according to any of claims 1-3, characterized in that: reset spring with the coaxial setting of valve shaft, reset spring is torsional spring structure and both ends and extends the setting towards opposite direction, one end with left valve plate is fixed to be set up, the other end with right valve plate is fixed to be set up.
8. The wafer-type lift, swing check valve according to any of claims 1-3, characterized in that: the valve body is provided with a shoulder, the lining rubber is axially positioned through a shoulder structure, and sealing bulges are arranged at the positions of the lining rubber corresponding to the left valve plate and the right valve plate.
9. The wafer-type lift, swing check valve according to any of claims 1-3, characterized in that: the valve comprises a valve shaft, a valve body, a valve shaft, a left valve plate, a right valve plate, a first hinge shaft sleeve, a second hinge shaft sleeve, a first gasket and a second gasket, wherein the upper end and the lower end of the left valve plate, which are close to the valve side, are respectively provided with the first hinge shaft sleeve, the upper end and the lower end of the right valve plate, which are close to the valve shaft side, are respectively provided with the second hinge shaft sleeve, the first hinge shaft sleeve and the second hinge shaft sleeve are arranged in a staggered manner, the first gasket is arranged between the first hinge shaft and the second hinge shaft, and the first gasket and the valve shaft are coaxially arranged.
10. The wafer style lift, swing check valve of claim 9, wherein: and a second gasket is arranged between the first hinge shaft sleeve close to one side of the return spring and the return spring, a second gasket is arranged between the second hinge shaft sleeve close to one side of the return spring and the return spring, and the second gasket is coaxially arranged with the valve shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023080956.7U CN214063883U (en) | 2020-12-18 | 2020-12-18 | Double-clip type lifting, rotary starting double-holding check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023080956.7U CN214063883U (en) | 2020-12-18 | 2020-12-18 | Double-clip type lifting, rotary starting double-holding check valve |
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| Publication Number | Publication Date |
|---|---|
| CN214063883U true CN214063883U (en) | 2021-08-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023080956.7U Active CN214063883U (en) | 2020-12-18 | 2020-12-18 | Double-clip type lifting, rotary starting double-holding check valve |
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| CN (1) | CN214063883U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112524300A (en) * | 2020-12-18 | 2021-03-19 | 博纳斯威阀门股份有限公司 | Double-clip type lifting, rotary starting double-holding check valve |
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2020
- 2020-12-18 CN CN202023080956.7U patent/CN214063883U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112524300A (en) * | 2020-12-18 | 2021-03-19 | 博纳斯威阀门股份有限公司 | Double-clip type lifting, rotary starting double-holding check valve |
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