CN217927304U

CN217927304U - Check valve

Info

Publication number: CN217927304U
Application number: CN202221461922.9U
Authority: CN
Inventors: 不公告发明人
Original assignee: Zhejiang Shengtong Valve Co ltd
Current assignee: Zhejiang Shengtong Valve Co ltd
Priority date: 2022-06-13
Filing date: 2022-06-13
Publication date: 2022-11-29
Anticipated expiration: 2032-06-13

Abstract

The utility model discloses a check valve, including the first shell that loads, one side of the first shell that loads is provided with the second and loads the shell, the first shell that loads with the both ends that the second loaded the shell are provided with matched with water inlet and outlet respectively, just the water inlet all is equipped with the tighrening ring with the outer pot head of outlet, the first shell that loads with the inside that the second loaded the shell all is provided with the mounting panel, one side upper end of mounting panel is provided with first prefab. Has the beneficial effects that: when rivers backward flow, thereby the rivers dispersion flows into the inside of rotary trough along the prefabricated plate under the influence of which rotary island, through the inside annular setting of rotary trough make rivers rotate the back backward flow once more to reach the effect that prevents the backward flow, simultaneously because of rivers flow in the rotary trough is inside, thereby make its and rotary island contact with the manger plate skew, thereby make it block rivers backward flow.

Description

Check valve

Technical Field

The utility model relates to a check valve technical field particularly, relates to a check valve.

Background

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.

But current check valve plate is breakable, takes place the material refluence easily to the opening of check valve, when closing water impact big, the sealing washer yielding, the bonding, ageing, the problem of damage.

An effective solution to the problems in the related art has not been proposed yet.

SUMMERY OF THE UTILITY MODEL

To the problem in the correlation technique, the utility model provides a check valve to overcome the above-mentioned technical problem that current correlation technique exists.

Therefore, the utility model discloses a specific technical scheme as follows:

the utility model provides a check valve, includes the first shell that loads, one side of the first shell that loads is provided with the second and loads the shell, the first shell that loads with the second loads both ends of shell and is provided with matched with water inlet and outlet respectively, just the outer end of water inlet and outlet all overlaps and is equipped with the tighrening ring, the first shell that loads with the inside of second loading shell all is provided with the mounting panel, one side upper end of mounting panel is provided with first prefab, first prefab is close to a plurality of evenly distributed's gyration groove is seted up to one side at first loading shell middle part, one side lower extreme of mounting panel is provided with the second prefab, the upper end one side of second prefab is provided with first curved surface groove, one side in first curved surface groove is provided with second curved surface groove, just one side middle part of mounting panel be provided with a plurality of with the corresponding ring island in gyration groove position, the one end in gyration groove is provided with water retaining device.

Furthermore, an arc-shaped baffle is arranged at the bottom of one end, close to the water outlet, of the rotary island, and a flow line plate is arranged at the bottom of one end, close to the water inlet, of the rotary island.

Furthermore, the water retaining device comprises a fixed shaft connected with the first prefabricated member, a movable baffle is arranged in the middle of one end of the fixed shaft, and a stable guide rod matched with the first prefabricated member is arranged at one end, close to the fixed shaft, of the movable baffle.

Furthermore, one end of the rotary island, which is close to the water inlet, is in a streamline arc shape, one end of the rotary island, which is far away from the water inlet, is in a conical shape, and the movable baffle is in contact with and parallel to the conical surface of the rotary island when in contact with the rotary island.

Furthermore, one end of the second prefabricated member close to the water outlet is provided with a guide slope, and the inclined plane of the guide slope and the conical surface of the annular island close to the water outlet are on the same plane.

Further, mounting panel one side with the water inlet with the internal diameter of outlet is tangent, just first load the shell with the outer end of second loading shell is provided with a plurality of location bolts.

The utility model provides a check valve, beneficial effect as follows: the utility model forms a complete shell by buckling the first loading shell and the second loading shell, separates water flow by the arrangement of the rotary island when the water flow enters the device through the water inlet, so that the water flows through the prefabricated panels at both sides and is discharged through the water discharge opening, and when the water flows back, the water flow is dispersed under the influence of which island and then flows into the interior of the rotary tank along the precast slab, the water flow flows back again after rotating through the annular arrangement in the rotary tank, thereby achieving the effect of preventing backflow, and simultaneously, because water flows in the rotary groove, the water retaining device is deviated to be contacted with the rotary island, so that the water flow is blocked from flowing back, and the water flow is rotated to impact one end of the rotary island close to the water inlet when flowing through the first curved surface groove, so that the water flow is shunted again and then is rotated again to prevent backflow, the water flow is difficult to flow back through the arrangement of the rotating groove and the arrangement of the first curved surface groove, thereby effectively avoiding the condition of overlarge internal pressure of the device, effectively prolonging the service life of the device, the arrangement of the arc-shaped baffle plate and the guide slope ensures that the larger part of the water flow backflow direction moves along the direction of the rotary groove, thereby the direction of the water flow is turned to reduce the direct pressure of the water flow, when the device is normally used, the resistance of the water flow to the flow distribution is reduced through the arrangement of the flow line plate, thereby reducing the pressure when the device is used, facilitating the installation of the movable baffle plate through the arrangement of the fixed shaft, when the device is in normal use, the water flow supports the movable baffle plate so as to flow out of the water outlet through the device, when the water flow flows back, the movable baffle is contacted with the rotary island by the water flow, so that the movable baffle blocks the advance of the water flow, thereby further improvement device anti-return's effect, the first casing of loading of being convenient for through setting up of location bolt and the combination installation of second loading casing.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic structural view of a check valve according to an embodiment of the present invention;

fig. 2 is a schematic view of the internal structure of a check valve according to an embodiment of the present invention;

fig. 3 is a partial enlarged view of fig. two of a check valve according to an embodiment of the present invention.

In the figure:

1. a first loading shell; 2. a second loading shell; 3. a water inlet; 4. a water outlet; 5. a fastening ring; 6. Mounting a plate; 7. a first preform; 8. a rotary trough; 9. a second preform; 10. a first curved surface groove; 11. A second curved groove; 12. a ring island; 13. a water retaining device; 14. an arc-shaped baffle plate; 15. a flow line plate; 16. A fixed shaft; 17. a movable baffle; 18. a stabilizing guide bar; 19. a guide slope; 20. and (6) positioning a bolt.

Detailed Description

For further explanation of the embodiments, the drawings are provided as part of the disclosure and serve primarily to illustrate the embodiments and, together with the description, to explain the principles of operation of the embodiments, and to provide further explanation of the invention and advantages thereof, it will be understood by those skilled in the art that various other embodiments and advantages of the invention are possible, and that elements in the drawings are not to scale and that like reference numerals are generally used to designate like elements.

According to the utility model discloses an embodiment provides a check valve.

The first embodiment is as follows:

as shown in fig. 1-3, according to the utility model discloses a check valve, including first loading shell 1, one side of first loading shell 1 is provided with the second and loads shell 2, first loading shell 1 with the second loads the both ends of shell 2 and is provided with matched with water inlet 3 and outlet 4 respectively, just water inlet 3 all overlaps with the outer end of outlet 4 and is equipped with tighrening ring 5, first loading shell 1 with the inside of second loading shell 2 all is provided with mounting panel 6, one side upper end of mounting panel 6 is provided with first prefab 7, first prefab 7 is close to a plurality of evenly distributed's rotary groove 8 has been seted up to one side at first loading shell 1 middle part, one side lower extreme of mounting panel 6 is provided with second prefab 9, upper end one side of second prefab 9 is provided with first curved surface groove 10, one side of first curved surface groove 10 is provided with second curved surface groove 11, just one side middle part of mounting panel 6 be provided with a plurality of with rotary groove 8 corresponding rotary island 12 in position, the one end of rotary groove 8 is provided with water retaining device 13.

The first loading shell 1 and the second loading shell 2 are buckled to form a complete shell, when water flows enter the device through the water inlet 3, the water flows are separated through the annular island 12, so that the water flows flow through the prefabricated plates on two sides and is discharged through the water outlet 4, when the water flows flow flows back, the water flows are dispersed under the influence of the annular island, so that the water flows into the rotary groove 8 along the prefabricated plates, the water flows flow flows back again after rotating through the annular arrangement inside the rotary groove 8, the backflow preventing effect is achieved, meanwhile, the water flows flow flows inside the rotary groove 8, the water blocking device 13 is in contact with the annular island due to the deviation, so that the water flow backflow is blocked, the water flows through the first curved groove 10 and is collided with one end, close to the water inlet 3, of the annular island 12, the water flows through the second diversion, the water flows back again, the water flows are difficult to flow back through the arrangement of the rotary groove 8 and the arrangement of the first curved groove 10, the situation that the internal pressure of the device is too large is effectively avoided, and the service life of the device is effectively prolonged.

Example two:

as shown in fig. 1-3, an arc baffle 14 is disposed at the bottom of one end of the rotary island 12 close to the water outlet 4, and a flow line plate 15 is disposed at the bottom of one end of the rotary island 12 close to the water inlet 3. The water retaining device 13 comprises a fixed shaft 16 connected with the first prefabricated member 7, a movable baffle 17 is arranged in the middle of one end of the fixed shaft 16, and a stable guide rod 18 matched with the first prefabricated member 7 is arranged at one end, close to the fixed shaft 16, of the movable baffle 17. The one end that the rotary island 12 is close to the water inlet 3 is the streamline arc, just the one end that the rotary island 12 is kept away from the water inlet 3 is the toper, adjustable fender 17 with when the rotary island 12 contacts with the conical surface of rotary island 12 contacts and is parallel each other. One end of the second prefabricated member 9 close to the water discharge opening 4 is provided with a guide slope 19, and the inclined plane of the guide slope 19 and the conical surface of the roundabout 12 close to the water discharge opening 4 are on the same plane. The mounting panel 6 one side with the water inlet 3 with the internal diameter of outlet 4 is tangent, just first load the shell 1 with the outer end of second load shell 2 is provided with a plurality of location bolts 20.

The setting through cowl 14 and direction slope 19 makes the direction of the great part looks rotary tank 8 of direction of rivers backward flow move, thereby the direction of transfer rivers makes its direct pressure that reduces rivers, setting through flow line board 15 is when the device normal use, make the rivers reduce the resistance of reposition of redundant personnel, thereby pressure when the reduction device uses, the installation of adjustable fender 17 of being convenient for through the setting of fixed axle 16, rivers hold up adjustable fender 17 when the device normal use, thereby flow from the outlet through the device, when rivers flow backward flow, rivers contact adjustable fender 17 and rotary island 12, thereby make its advance that blocks rivers, thereby further improve the effect that the device anti-return flows, the combination installation of first loading shell 1 and second loading shell 2 of being convenient for through setting up of location bolt 20.

For the convenience of understanding the technical solution of the present invention, the following detailed description is made on the working principle or the operation mode of the present invention in the practical process.

In practical application, a complete shell is formed by buckling the first loading shell 1 and the second loading shell 2, when water flows into the device through the water inlet 3, the water flows are separated through the arrangement of the rotary island 12, so that the water flows through the prefabricated plates on two sides and is discharged through the water outlet 4, when the water flows back, the water flows are dispersed under the influence of the rotary island and then flow into the rotary tank 8 along the prefabricated plates, the water flows are rotated and then flow back again through the annular arrangement in the rotary tank 8, so that the effect of preventing the back flow is achieved, meanwhile, as the water flows in the rotary tank 8, the water retaining device 13 is deviated to be in contact with the rotary island, so that the water flow is blocked, and the water flows through the arrangement of the first curved groove 10, when the water flows, the water flows back to the end, close to the water inlet 3, so that the water is shunted again, so that the water flows back flow is prevented from flowing back again, the arrangement of the rotary groove 8 and the arrangement of the first curved groove 10 make the water flow difficult to flow back, thereby effectively avoiding the condition of overlarge internal pressure of the device, effectively prolonging the service life of the device, the arrangement of the arc baffle plate 14 and the guide slope 19 makes the larger part of the water flow flowing back move along the direction of the rotary groove 8, thereby turning the direction of the water flow so as to reduce the direct pressure of the water flow, when the device is normally used, the arrangement of the flow line plate 15 makes the water flow reduce the resistance of flow division, thereby reducing the pressure when the device is used, the arrangement of the fixed shaft 16 is convenient for the installation of the movable baffle plate 17, when the device is normally used, the water flow supports the movable baffle plate 17, thereby the water flow flows out from the water outlet, when the water flow flows back, the movable baffle plate 17 is contacted with the rotary island 12, thereby the water flow is prevented from advancing, thereby further improving the backflow prevention effect of the device, and the combined installation of the first loading shell 1 and the second loading shell 2 is facilitated through the positioning bolt 20.

To sum up, with the help of the above technical scheme of the utility model, when rivers backward flow, thereby the rivers dispersion flows in the inside of rotary tank along the prefabricated plate under the influence of which rotary island, through the inside annular of rotary tank set up make rivers rotate the back backward flow once more to reach the effect that prevents the backward flow, simultaneously because of rivers flow in the rotary tank is inside, thereby make its and rotary island contact with the water retaining device skew, thereby make it block rivers backward flow.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a check valve, its characterized in that, includes first loading shell (1), one side of first loading shell (1) is provided with the second and loads shell (2), first loading shell (1) with the both ends that the second loaded shell (2) are provided with matched with water inlet (3) and outlet (4) respectively, just water inlet (3) all overlap with the outer end of outlet (4) and are equipped with tighrening ring (5), first loading shell (1) with the inside that the second loaded shell (2) all is provided with mounting panel (6), one side upper end of mounting panel (6) is provided with first prefab (7), first prefab (7) are close to first rotation groove (8) of seting up a plurality of evenly distributed in one side of loading shell (1) middle part, one side lower extreme of mounting panel (6) is provided with second prefab (9), upper end one side of second prefab (9) is provided with first curved surface groove (10), one side of first curved surface groove (10) is provided with second curved surface groove (11), just one side of mounting panel (6) be provided with a plurality of rotation groove (8) with the corresponding water retaining ring position (13) island position (12), rotation groove (8) are provided with water retaining ring groove (13).

2. The check valve according to claim 1, characterized in that the end of the rotary island (12) near the water outlet (4) is provided with a curved baffle (14) at the bottom, and the end of the rotary island (12) near the water inlet (3) is provided with a flow plate (15) at the bottom.

3. Non-return valve according to claim 2, characterized in that the water retaining means (13) comprise a fixed shaft (16) connected to the first preform (7), a movable baffle (17) being arranged in the middle of one end of the fixed shaft (16), and a stabilizing guide rod (18) cooperating with the first preform (7) being arranged at the end of the movable baffle (17) close to the fixed shaft (16).

4. A non-return valve according to claim 3, characterized in that the end of the rotary island (12) close to the water inlet (3) is in the shape of a streamline arc, the end of the rotary island (12) far from the water inlet (3) is in the shape of a cone, and the movable baffle (17) is in contact with and parallel to the cone of the rotary island (12) when in contact with the rotary island (12).

5. A non-return valve according to claim 4, characterized in that the end of the second preform (9) close to the drain opening (4) is provided with a guide ramp (19), and the slope of the guide ramp (19) is in the same plane as the conical surface of the island (12) close to the drain opening (4).

6. A non-return valve according to claim 5, characterized in that the mounting plate (6) is on one side tangential to the inner diameters of the inlet (3) and the outlet (4) and that the outer ends of the first (1) and second (2) loading shells are provided with positioning pins (20).