Check valve with multiple connectors

Abstract

The utility model discloses a check valve with multiple connectors, which comprises a delivery pipe, one end of the delivery pipe is fixedly connected with an annular pipe, the outside of the annular pipe is fixedly connected with multiple groups of branch pipes, the outside of each branch pipe is fixedly connected with a connecting pipe, and each branch pipe is internally and fixedly connected with a convex ring. The conveying pipe is connected with a pipeline, and then the connecting pipe is connected with other external pipelines; according to the check valve, fluid is conveyed through the conveying pipe, when the fluid impacts and opens the valve clack, a passage can be formed, then the fluid is conveyed through the connecting pipe, and through the arrangement of the annular pipe, the fluid can be conveyed to the multiple connecting pipes at the same time and is not limited to one, so that the application range of the check valve in the embodiment is widened; according to the multi-flap valve, the single valve flap can be opened, the multiple valve flaps can be opened at the same time, and therefore different numbers of connecting pipes can be used according to different use scenes.

Description

Technical Field

[0001] The utility model relates to the technical field of valves, in particular to a check valve with multiple connectors. Background Art

[0002] In the process of liquid phase fluid pipeline transportation, it is often necessary to prevent the backflow of the transported medium. As a common anti-backflow device, check valves are often used in fluid transportation equipment and pipelines.

[0003] After searching, the Chinese patent with announcement number: CN211344135U discloses a check valve that is easy to clean. The technical problem to be solved by the utility model is to provide a check valve that can easily clean the gaps on the valve body to avoid the growth of moss and the accumulation of calcium oxide. A check valve that is easy to clean includes a pipe flange, a cleaning component, a valve core, a valve body, a connecting ring, a cleaning plug ring, etc.; the connecting ring is fixed to the outer wall of the valve body; the cleaning component is slidably connected to the pipe flange and contacts the valve body; the valve core is fixed to the inner wall of the valve body and is clamped to the valve body; the valve cover is clamped to the valve body through the connecting flange; the cleaning plug ring is clamped to the connecting ring.

[0004] The check valve in this patent is consistent with most of the check valves in the prior art, and has the following defects:

[0005] The check valve in this patent can only realize the opening and closing of one pipeline because it only has one valve core. If it is necessary to use multiple check valves to realize the transportation of multiple pipelines, it cannot be realized quickly. Utility Model Content

[0006] In view of the deficiencies of the prior art, the utility model provides a check valve with multiple connectors.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a check valve with multiple connectors, comprising a delivery pipe, one end of the delivery pipe is fixedly connected to an annular pipe, the outside of the annular pipe is fixedly connected to multiple groups of branch pipes, the outside of the branch pipe is fixedly connected to a connecting pipe, the inside of the branch pipe is fixedly connected to a convex ring, the outside of the convex ring is provided with a valve flap, the end of the branch pipe is detachably fixedly connected to an end cover, and a spring is connected between the valve flap and the end cover.

[0008] By adopting the above technical solution, when in use, the delivery pipe is connected to the pipeline, and then the connecting pipe is connected to other external pipelines; then the fluid is transported through the delivery pipe, and when the fluid impacts and opens the valve flap, a passage can be formed, and then the fluid can be transported through the connecting pipe, and through the setting of the annular pipe, multiple connecting pipes can be transported at the same time, not limited to one, thereby increasing the scope of application of the check valve in this embodiment. In this embodiment, not only can a single valve flap be opened, but multiple valve flaps can also be opened at the same time, so that different numbers of connecting pipes can be used according to different usage scenarios.

[0009] The utility model is further configured as follows: a rotating rod is rotatably connected in the end cover, a guide cylinder is sleeved on the outside of the rotating rod, the guide cylinder is fixedly connected to the valve disc, and a limiting component is further provided between the rotating rod and the guide cylinder.

[0010] By adopting the above technical solution, the opening of the valve disc can be guided by the arrangement of the guide cylinder and the rotating rod.

[0011] The utility model is further configured that the limiting assembly includes a guide rod fixedly connected to one end of the rotating rod, a limiting block fixedly connected to the bottom of the guide rod, and an abutment block fixedly connected to the inner wall of the guide cylinder.

[0012] By adopting the above technical solution, the rotating rod is rotated ninety degrees to make the limit block abut against the outside of the resistance block, and then the threaded pin is passed through the corresponding through hole and then connected to the end cover again. The limit block can abut against the resistance block, so that the valve disc and the guide cylinder cannot slide, thereby sealing the passage between the branch pipe and the connecting pipe so that it cannot be opened, so that only a few specific connecting pipes are needed for transportation.

[0013] The utility model is further configured as follows: a threaded pin is threadedly inserted in the end cover, a support ring is fixedly connected to the outside of the rotating rod, and two through holes are provided in the support ring.

[0014] By adopting the above technical solution, it is convenient for the threaded pin to pass through the through hole and connect with the end cover to lock the position of the rotating rod.

[0015] The utility model is further configured such that a hexagonal groove is provided at the end of the rotating rod.

[0016] By adopting the above technical solution, it is convenient to rotate the rotating rod by using the hexagonal wrench.

[0017] The utility model is further configured such that the bottom of the limit block is an arc-shaped structure.

[0018] By adopting the above technical solution, the arc-shaped structure makes it convenient for the limit block to abut against the outside of the abutment block.

[0019] The utility model is further configured such that the annular tube can also be replaced by a polygonal pipe.

[0020] By adopting the above technical solution, not limited to the annular pipe, the pipe with a polygonal structure can be customized as needed.

[0021] The beneficial effect of the utility model is as follows: compared with the prior art, in the utility model, the delivery pipe is connected to the pipeline, and then the connecting pipe is connected to other external pipelines; then the fluid is transported through the delivery pipe, and when the fluid impacts and opens the valve flap, a passage can be formed, and then the fluid can be transported through the connecting pipe, and through the setting of the annular pipe, multiple connecting pipes can be transported at the same time, not limited to one, thereby increasing the application scope of the check valve in this embodiment. In this embodiment, not only can a single valve flap be opened, but multiple valve flaps can also be opened at the same time, so that different numbers of connecting pipes can be used according to different usage scenarios. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0023] Figure 2 This is a schematic diagram of the axonometric structure of the utility model;

[0024] Figure 3 It is a schematic diagram of the cross-sectional structure of the utility model;

[0025] Figure 4 for Figure 3 Schematic diagram of the enlarged structure of the A area in the middle;

[0026] Figure 5 It is a structural schematic diagram of the transfer rod of the utility model.

[0027] In the figure: 1. delivery pipe; 2. annular pipe; 3. branch pipe; 4. end cover; 5. threaded pin; 6. rotating rod; 7. spring; 8. guide cylinder; 9. convex ring; 10. valve disc; 11. guide rod; 12. limit block; 13. resistance block; 14. through hole; 15. connecting pipe; 16. support ring. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] Example: As attached Figures 1 to 5A check valve with multiple connectors is shown, comprising a delivery pipe 1, one end of which is fixedly connected to an annular pipe 2, through which fluid is transported into the annular pipe 2, and a plurality of groups of branch pipes 3 are fixedly connected to the outside of the annular pipe 2, the outside of the branch pipes 3 is fixedly connected to a connecting pipe 15, and the branch pipes 3 transport fluid into the connecting pipe 15. The annular pipe 2 can also be replaced by a polygonal pipe, such as a hexagonal pipe.

[0030] As attached Figures 1 to 4 As shown, in order to facilitate on and off, a convex ring 9 is fixedly connected in the branch pipe 3, and a valve flap 10 is arranged on the outside of the convex ring 9. The end of the branch pipe 3 is detachably fixedly connected with an end cover 4, and a spring 7 is connected between the valve flap and the end cover 4. Under normal conditions, the valve flap 10 is in contact with the outside of the convex ring 9 through the setting of the spring 7, forming a closure between the branch pipe 3 and the connecting pipe 15, and the fluid is transported through the delivery pipe 1. When the fluid impacts and opens the valve flap 10, a passage can be formed, and then the fluid can be transported through the connecting pipe 15.

[0031] As attached Figures 1 to 4 As shown, a rotating rod 6 is rotatably connected in the end cover 4, a guide cylinder 8 is sleeved on the outside of the rotating rod 6, the guide cylinder 8 is fixedly connected to the valve disc, and a limiting component is also provided between the rotating rod 6 and the guide cylinder 8.

[0032] As attached Figures 3 to 5 As shown, the limit assembly includes a guide rod 11 fixedly connected to one end of the rotating rod 6, a limit block 12 fixedly connected to the bottom of the guide rod 11, and an interference block 13 fixedly connected to the inner wall of the guide cylinder 8. In order to facilitate the interference, the bottom of the limit block 12 is an arc-shaped structure. In order to facilitate the fixation of the position of the rotating rod 6, a threaded pin 5 is threadedly inserted in the end cover 4, and a support ring 16 is fixedly connected to the outside of the rotating rod 6. In order to facilitate rotation, a hexagonal groove is provided at the end of the rotating rod 6, and two through holes 14 are provided on the support ring 16. The angle between the two through holes 14 is ninety degrees. When the rotating rod 6 rotates ninety degrees, the limit block 12 interferes with the outside of the interference block 13, and the other through hole 14 corresponds to the threaded pin 5.

[0033] In order for those skilled in the art to fully understand the technical solution, this embodiment is summarized as follows:

[0034] When in use, the delivery pipe 1 is connected to the pipeline, and then the connecting pipe 15 is connected to other external pipelines;

[0035] Then, the fluid is transported through the delivery pipe 1. When the fluid impacts and opens the valve flap 10, a passage is formed, and then the fluid is transported through the connecting pipe 15. Moreover, by setting the annular pipe 2, multiple connecting pipes 15 can be transported at the same time, not limited to one, thereby increasing the application range of the check valve in this embodiment;

[0036] If multiple connecting pipes 15 are not required to be transported at the same time, it is only necessary to insert the hexagonal groove of the rotating rod 6 through the hexagonal bolt, then remove the threaded pin 5, rotate the rotating rod 6 ninety degrees, let the limit block 12 abut against the outside of the abutment block 13, and then pass the threaded pin 5 through the corresponding through hole 14, and then connect it with the end cover 4 again to fix the position of the rotating rod 6;

[0037] In this way, the stop block 12 can resist the resistance block 13, so that the valve flap and the guide cylinder 8 cannot slide, thereby sealing the passage between the branch pipe 3 and the connecting pipe 15, so that it cannot be opened, so that only a few specific connecting pipes 15 are needed for transportation;

[0038] Therefore, in this embodiment, not only can a single valve flap 10 be opened, but also multiple valve flaps 10 can be opened simultaneously, so that different numbers of connecting pipes 15 can be used according to different usage scenarios.

[0039] In the present invention, terms such as "upper", "lower", "left", "right", "front", "back", "vertical", "horizontal", "side", "bottom" and the like indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings. They are relational words determined only for the convenience of describing the structural relationships of the various parts or elements of the present invention, and do not specifically refer to any part or element in the present invention and cannot be understood as limitations on the present invention.

Claims

1. A check valve with multiple connectors, comprising a delivery pipe (1), one end of the delivery pipe (1) being fixedly connected to an annular pipe (2), It is characterized by: The annular tube (2) is fixedly connected to the outside of a plurality of branch tubes (3), the branch tubes (3) are fixedly connected to the outside of a connecting tube (15), the branch tubes (3) are fixedly connected to the inside of a convex ring (9), the convex ring (9) is provided with a valve flap (10) on the outside, the end of the branch tube (3) is detachably fixedly connected to an end cover (4), and a spring (7) is connected between the valve flap and the end cover (4).

2. A check valve with multiple connectors according to claim 1, It is characterized in that A rotating rod (6) is rotatably connected to the end cover (4), a guide cylinder (8) is sleeved on the outside of the rotating rod (6), the guide cylinder (8) is fixedly connected to the valve disc, and a limit assembly is also provided between the rotating rod (6) and the guide cylinder (8).

3. A check valve with multiple connectors according to claim 2, It is characterized in that The limit assembly comprises a guide rod (11) fixedly connected to one end of the rotating rod (6), a limit block (12) fixedly connected to the bottom of the guide rod (11), and a resistance block (13) fixedly connected to the inner wall of the guide cylinder (8).

4. A check valve with multiple connectors according to claim 3, It is characterized in that A threaded pin (5) is threadedly inserted into the end cover (4), and a support ring (16) is fixedly connected to the outside of the rotating rod (6), and two through holes (14) are provided on the support ring (16).

5. A check valve with multiple connectors according to claim 4, It is characterized in that The end of the rotating rod (6) is provided with a hexagonal groove.

6. A check valve with multiple connectors according to claim 5, It is characterized in that The bottom of the limiting block (12) is an arc-shaped structure.

7. A check valve with multiple connectors according to claim 1, It is characterized in that The annular tube (2) may also be replaced by a polygonal pipe.

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