CN214008179U - Anti-interference check valve with filtering function - Google Patents
Anti-interference check valve with filtering function Download PDFInfo
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- CN214008179U CN214008179U CN202023110455.9U CN202023110455U CN214008179U CN 214008179 U CN214008179 U CN 214008179U CN 202023110455 U CN202023110455 U CN 202023110455U CN 214008179 U CN214008179 U CN 214008179U
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Abstract
The utility model discloses an anti-interference check valve with filtering function, which comprises a valve body, a filtering component and an anti-backflow component, wherein the filtering component and the anti-backflow component are arranged in the valve body; the filtering component is arranged in the Y-shaped inner cavity structure, and the backflow preventing component is arranged in the horizontal part; the right side of the horizontal part is provided with a cavity, and the end surface of the cavity forms a sealing surface; the backflow prevention assembly comprises a movable joint, a movable joint nut, a spring, a stop block, a valve core, a sealing ring, a first guide rod and a second guide rod, wherein the sealing ring is arranged on the valve core. The utility model discloses can with the medium non return and filter effectual integration in an organic whole, not only sealed reliable, simple structure, it is convenient to install it in the water pipe network, disturbance that can effectual solution family table within a definite time can the effectual problem of solving the pipeline medium refluence.
Description
Technical Field
The utility model relates to a valve technical field, concretely relates to jam-proof check valve with filtering capability.
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. It belongs to the automatic valve category, also called check valve, reflux valve or isolation 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.
At present, the check valve used in the urban water supply network is installed by combining valves with single functions, so that the installation is inconvenient, and the situation of disturbance of a household meter is easily caused by improper sealing and easy leakage at the installation interface of the two valves.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a jam-proof check valve with filtering capability, it can be with the medium non return and filter effectually to be integrated in an organic whole, not only sealed reliable, simple structure, it is convenient to install it in the water pipe network, disturbance that can effectual solution family table, problem that can effectual solution pipe medium flow backwards.
In order to solve the technical problem, the utility model discloses the technical scheme who adopts is:
a kind of anti-interference check valve with filtering function, including valve block and filter assembly and anti-backflow assembly set in valve block, the valve block is mainly made up of horizontal part and inclined part that the slope sets up on the horizontal part, form a Y-type cavity structure after the inclined part and horizontal part are communicated each other; the filtering component is arranged in the Y-shaped inner cavity structure, and the backflow preventing component is arranged in the horizontal part; the right side of the horizontal part is provided with a cavity, and the end surface of the cavity forms a sealing surface;
the backflow preventing assembly comprises a loose joint, a loose joint nut, a spring, a stop block, a valve core, a sealing ring, a first guide rod and a second guide rod, the sealing ring is arranged on the valve core, the first guide rod and the second guide rod are respectively arranged at two ends of the valve core, the loose joint nut is arranged on the loose joint, the loose joint is in threaded connection with the horizontal part, and an O-shaped sealing ring is arranged between the end surface of the loose joint and the horizontal part; the valve core is provided with a valve core, a valve body is arranged in the valve core, a valve seat is arranged in the valve core, a valve body is arranged in the valve core, a first guide support is arranged in the horizontal part, a second guide support is arranged in the loose joint, a first guide rod and a second guide rod are respectively in sliding fit with the first guide support and the second guide support, a check block and a spring which belongs to the check block are sleeved on the second guide rod, the check block presses the spring on the valve core after the loose joint is in threaded connection with the horizontal part, and a sealing pair is formed by a sealing ring and the sealing surface under the action of the spring.
Preferably, the included angle formed between the horizontal part and the inclined part is 40-50 degrees.
Further defined, the horizontal portion and the diagonal portion form an included angle of 45.
Wherein, the horizontal part both ends are provided with sealed pipe thread, loose joint and horizontal part right-hand member threaded connection.
Wherein, filtering component includes gland and filter screen, be provided with first step location boss in the inner chamber structure, gland and slope tip threaded connection, the filter screen is a tubular structure, filter screen tip be provided with can with first step location boss complex location end, the filter screen is installed in the slope, and after gland and slope were connected, the gland can tightly press on the filter screen.
Further optimize, be provided with first O type sealing washer between slope portion and the gland.
Wherein, the tip of slope portion is provided with the internal thread, and the gland is provided with the external screw thread, and the gland passes through inside and outside threaded connection with the slope portion.
Further limited, the end of the gland is provided with an external hexagonal structure.
Compared with the prior art, the utility model discloses following beneficial effect has:
the utility model mainly comprises a valve body, a filtering component and a backflow-preventing component, wherein the valve body mainly comprises a horizontal part and an inclined part which is obliquely arranged on the horizontal part, and the inclined part and the horizontal part are mutually communicated to form a Y-shaped inner cavity structure, so that the filtering and non-return functions can be integrated into a whole, and the valve body has the advantages of compact structure and simple structure; when the utility model is installed in a pipe network system, the connecting points are fewer, and the sealing performance is better; in actual use, the system has the advantage of no maintenance, and can effectively solve the disturbance between the household meters, thereby solving the contradiction between a tap water company and a user, and solving the problems of filtering and backflow pollution of a pipeline medium.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a partially enlarged schematic view of a portion a in fig. 1 according to the present invention.
Reference numerals: 1-valve body, 2-filter assembly, 3-backflow prevention assembly, 4-horizontal part, 5-inclined part, 6-cavity, 7-sealing surface, 8-loose joint, 9-loose joint nut, 10-spring, 11-stop block, 12-valve core, 13-sealing ring, 14-first guide rod, 15-second guide rod, 16-O-shaped sealing ring, 17-sealing pipe thread, 18-gland, 19-filter screen, 20-first step positioning boss, 21-positioning end, 22-first O-shaped sealing ring, 23-hexagonal structure, 24-medium flow channel and 25-internal hexagonal structure.
Detailed Description
The present invention will be further described with reference to the following examples, which are only some, but not all, of the examples of the present invention. Based on the embodiments in the present invention, other embodiments used by those skilled in the art without creative work belong to the protection scope of the present invention.
Example one
The utility model discloses an anti-interference check valve with filtering function, which comprises a valve body 1, a filtering component 2 and an anti-backflow component 3 which are arranged in the valve body 1, wherein the valve body 1 mainly comprises a horizontal part 4 and an inclined part 5 which is obliquely arranged on the horizontal part 4, and the inclined part 5 and the horizontal part 4 are mutually communicated to form a Y-shaped inner cavity structure; the filtering component 2 is arranged in the Y-shaped inner cavity structure, and the backflow preventing component 3 is arranged in the horizontal part 4; the right side of the horizontal part 4 is provided with a cavity 6, and the end surface of the cavity 6 forms a sealing surface 7;
the backflow prevention assembly 3 comprises a movable joint 8, a movable joint nut 9, a spring 10, a stop block 11, a valve core 12, a sealing ring 13, a first guide rod 14 and a second guide rod 15, wherein the sealing ring 13 is arranged on the valve core 12, the first guide rod 14 and the second guide rod 15 are respectively arranged at two ends of the valve core 12, the movable joint nut 9 is arranged on the movable joint 8, the movable joint 8 is in threaded connection with the horizontal part 4, and an O-shaped sealing ring 16 is arranged between the end surface of the movable joint 8 and the horizontal part 4; a first guide support is arranged in the horizontal part 4, a second guide support is arranged in the loose joint 8, a first guide rod 14 and a second guide rod 15 are respectively in sliding fit with the first guide support and the second guide support, the stop block 11 and the spring 10 are sleeved on the second guide rod 15, after the loose joint 8 is in threaded connection with the horizontal part 4, the stop block 11 presses the spring 10 on the valve core 12, and under the action of the spring 10, the sealing ring 13 and the sealing surface 7 form a sealing pair.
Wherein, the movable joint 8 is a movable joint.
Wherein, the included angle formed between the horizontal part 4 and the inclined part 5 is 40-50 degrees; in this embodiment, the angle formed between the horizontal portion 4 and the diagonal portion 5 is 45 °; therefore, the valve body 1 formed by the horizontal part 4 and the inclined part 5 has a more compact structure, and the whole volume of the valve can be effectively reduced.
Wherein, the two ends of the horizontal part 4 are provided with sealing pipe threads 17, and the loose joint 8 is in threaded connection with the right end of the horizontal part 4; like this will the utility model discloses when connecting in the pipe network, more convenient can realize quick connection's purpose.
Wherein, filtering component 2 includes gland 18 and filter screen 19, be provided with first step location boss 20 in the inner chamber structure, gland 18 and 5 tip threaded connection in slope, filter screen 19 is a tubular structure, 19 tip of filter screen be provided with can with first step location boss 20 complex location end 21, filter screen 19 install in slope 5, and gland 18 is connected the back with slope 5, and gland 18 can tightly press on filter screen 19.
Further preferably, a first O-shaped sealing ring 22 is arranged between the inclined part 5 and the gland 18, so that the inclined part 5 and the gland 18 can be connected more tightly, and the leakage-proof effect is improved.
Further, the end of the inclined part 5 is provided with an internal thread, the gland 18 is provided with an external thread, and the gland 18 is connected with the inclined part 5 through the internal thread and the external thread.
Wherein, the end part of the gland 18 is provided with an external hexagonal structure 23; in this way, in actual use, the pressing cover 18 can be detached by a wrench or other tools, so that the filter screen 19 can be replaced conveniently.
Further optimize, the inner wall of the loose joint 8 is provided with an inner hexagonal structure 25, which is convenient for realizing the quick connection of the loose joint 8 and the inclined part 5 of the valve body 1.
The utility model mainly comprises a valve body 1, a filtering component 2 and a backflow-preventing component 3, wherein the valve body 1 mainly comprises a horizontal part 4 and an inclined part 5 which is obliquely arranged on the horizontal part 4, and the inclined part 5 and the horizontal part 4 are mutually communicated to form a Y-shaped inner cavity structure, so that the functions of filtering and non-return can be integrated into a whole, and the valve has the advantages of compact structure and simple structure; when the utility model is installed in a pipe network system, the connecting points are fewer, and the sealing performance is better; in actual use, the system has the advantage of no maintenance, and can effectively solve the disturbance between the household meters, thereby solving the contradiction between a tap water company and a user, and solving the problems of filtering and backflow pollution of a pipeline medium.
More importantly, in the embodiment, the inclined part 5 is communicated with the horizontal part 4 to form a Y-shaped inner cavity structure, the cylindrical filter screen 19 is arranged in the inclined part 5, and the cylindrical filter screen 19 can be more conveniently and rapidly mounted through the arranged first step positioning boss 20 and the positioning end 21; in addition, the filter screen 19 is pressed by the gland 18, so that the assembly and disassembly are more convenient;
moreover, the filter screen 19 is of a cylindrical structure, and the filter area of the filter screen 19 is larger after the filter screen is unfolded; moreover, due to the inclined part 5, the medium flows through the filter screen 19 from the horizontal part 4 and is discharged, and due to the inclined state of the inclined part 5, the filter screen 19 is also installed in the inclined part 5 in an inclined state; therefore, the whole length of the filter screen 19 is effectively prolonged, and the filtering area of the filter screen 19 is further increased;
meanwhile, as the inclined part 5 is inclined, after the filter screen 19 filters impurities, the impurities are accumulated in the filter screen 19, and after the gland 18 is opened, the impurities can fall out of the filter screen 19, so that the impurities are more easily cleaned.
Example two
The present embodiment is further optimized on the basis of the first embodiment, in the present embodiment, the middle part of the inclined part 5 is in an arc structure, and a medium flow channel 24 is formed between the side wall of the inclined part 5 and the filter screen 19; therefore, the middle part of the inclined part 5 is large, and the two ends of the inclined part are contracted, so that the distance between the inner wall of the inclined part 5 and the filter screen 19 is larger, and the medium can flow quickly.
EXAMPLE III
The present embodiment is further optimized on the basis of the first embodiment and the second embodiment, in the present embodiment, the filter screen 19 is in a cup-shaped structure, the lower end of the filter screen 19 is provided with a cushion pad, and after the pressing cover 18 is connected with the inclined portion 5, the pressing cover 18 is tightly pressed on the cushion pad.
In this way, the added cushion pad can change the hard contact between the filter screen 19 and the gland 18 into soft contact, and when the gland 18 presses on the filter screen 19, the filter screen 19 can be prevented from being greatly deformed to influence the filtering effect.
While the preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. It is therefore intended that the appended claims be interpreted as including the preferred embodiment and all such alterations and modifications as fall within the scope of the invention. The above description is only exemplary of the present invention and should not be taken as limiting, and all changes, equivalents, and improvements made within the spirit and principles of the present invention should be understood as being included in the scope of the present invention.
Claims (8)
1. The utility model provides a jam-proof check valve with filtering capability which characterized in that: the valve body mainly comprises a horizontal part and an inclined part which is obliquely arranged on the horizontal part, and the inclined part and the horizontal part are communicated with each other to form a Y-shaped inner cavity structure; the filtering component is arranged in the Y-shaped inner cavity structure, and the backflow preventing component is arranged in the horizontal part; the right side of the horizontal part is provided with a cavity, and the end surface of the cavity forms a sealing surface;
the backflow preventing assembly comprises a loose joint, a loose joint nut, a spring, a stop block, a valve core, a sealing ring, a first guide rod and a second guide rod, the sealing ring is arranged on the valve core, the first guide rod and the second guide rod are respectively arranged at two ends of the valve core, the loose joint nut is arranged on the loose joint, the loose joint is in threaded connection with the horizontal part, and an O-shaped sealing ring is arranged between the end surface of the loose joint and the horizontal part; the valve core is provided with a valve core, a valve body is arranged in the valve core, a valve seat is arranged in the valve core, a valve body is arranged in the valve core, a first guide support is arranged in the horizontal part, a second guide support is arranged in the loose joint, a first guide rod and a second guide rod are respectively in sliding fit with the first guide support and the second guide support, a check block and a spring which belongs to the check block are sleeved on the second guide rod, the check block presses the spring on the valve core after the loose joint is in threaded connection with the horizontal part, and a sealing pair is formed by a sealing ring and the sealing surface under the action of the spring.
2. The interference preventing check valve having a filtering function according to claim 1, wherein: the horizontal part and the inclined part form an included angle of 40-50 degrees.
3. The interference preventing check valve having a filtering function according to claim 2, wherein: the horizontal portion and the inclined portion form an angle of 45 ° therebetween.
4. The interference preventing check valve having a filtering function according to claim 1, wherein: and sealing pipe threads are arranged at two ends of the horizontal part, and the loose joint is in threaded connection with the right end of the horizontal part.
5. The interference preventing check valve having a filtering function according to claim 1, wherein: the filter component comprises a gland and a filter screen, wherein a first step positioning boss is arranged in the inner cavity structure, the gland is in threaded connection with the end part of the inclined part, the filter screen is of a cylindrical structure, the end part of the filter screen is provided with a positioning end matched with the first step positioning boss, the filter screen is installed in the inclined part, and after the gland is connected with the inclined part, the gland can be tightly pressed on the filter screen.
6. The interference preventing check valve having a filtering function according to claim 5, wherein: a first O-shaped sealing ring is arranged between the inclined part and the gland cover.
7. The interference preventing check valve having a filtering function according to claim 5, wherein: the tip of slope portion is provided with the internal thread, and the gland is provided with the external screw thread, and the gland passes through inside and outside threaded connection with the slope portion.
8. The interference preventing check valve having a filtering function according to claim 5, wherein: the end part of the gland is provided with an outer hexagonal structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023110455.9U CN214008179U (en) | 2020-12-22 | 2020-12-22 | Anti-interference check valve with filtering function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023110455.9U CN214008179U (en) | 2020-12-22 | 2020-12-22 | Anti-interference check valve with filtering function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214008179U true CN214008179U (en) | 2021-08-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023110455.9U Active CN214008179U (en) | 2020-12-22 | 2020-12-22 | Anti-interference check valve with filtering function |
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| Country | Link |
|---|---|
| CN (1) | CN214008179U (en) |
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2020
- 2020-12-22 CN CN202023110455.9U patent/CN214008179U/en active Active
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