Water entry prevention device

Abstract

The waterproof device comprises an air outlet end and an air supply end, the air outlet end and the air supply end are detachably connected through a straight pipe, a plastic ball is arranged in the straight pipe, the air outlet end is provided with an expansion cavity, a baffle is arranged in the expansion cavity, and a plurality of through holes are formed in the baffle in an array mode. The air supply end is provided with a profiling cavity matched with the plastic ball. When the device is used, normally supplies air and flows backwards, the pressures on the two sides of the plastic ball are different, and the plastic ball is matched with the air outlet end and the air supply end in different ways. Therefore, the plastic ball is controlled to move, ventilation is automatically controlled, and water is prevented from flowing backwards into the air supply pipeline.

Description

TECHNICAL FIELD

[0001] The utility model relates to natural gas pipeline technical field, concretely is a prevent water device. BACKGROUND

[0002] Natural gas is one of energy sources that people's daily life or industrial production is common, generally through pipeline from gas supply pipeline transportation to user pipeline. User pipeline and gas supply pipeline generally will not have the device of water body backflow. Some user pipeline line is complex, cannot distinguish water supply pipeline and gas supply pipeline, lead to pipeline connection error, lead to water body through user pipeline into gas supply pipeline and other user indoor pipeline, cause large area to stop gas and manpower to carry out the repair, cause great loss. CONTENT OF UTILITY MODEL

[0003] In order to solve the above technical problem, the utility model provides a prevent water device.

[0004] The utility model discloses a technical scheme: a prevent water device includes gas outlet end, gas supply end, and the gas outlet end is detachably connected with the gas supply end through the straight pipe, the plastic ball is arranged in the straight pipe, the gas outlet end is equipped with the expansion chamber, the baffle is arranged in the expansion chamber, and a plurality of through holes are arranged on the baffle in array.

[0005] Further, the straight pipe includes the first straight pipe and the second straight pipe, one end of the first straight pipe is integrally formed with the gas outlet end and is close to the gas supply end and is equipped with the external thread, and the second straight pipe is integrally formed with the gas supply end and is close to the gas outlet end and is equipped with the internal thread matched with the external thread.

[0006] Further, the straight pipe is equipped with the polygonal lug.

[0007] Further, the expansion chamber is communicated with the straight pipe through the second taper pipe.

[0008] Further, the baffle is conical, and the middle part of the baffle extends away from the straight pipe.

[0009] Further, the middle part of the baffle is equipped with the circular hole, and the diameter of the circular hole is less than the diameter of the plastic ball.

[0010] Further, the periphery of the one side of the baffle close to the plastic ball is equipped with a plurality of reinforcing ribs spaced evenly, and the one end of the reinforcing rib close to the inner wall of the gas outlet end is equipped with the round angle matched with the plastic ball.

[0011] Further, the one end of the expansion chamber away from the straight pipe is equipped with the first taper pipe, and the expansion chamber is communicated with the pipeline outside through the first taper pipe.

[0012] Further, the one end of the expansion chamber away from the straight pipe is equipped with the third taper pipe, and the expansion chamber is communicated with the pipeline outside through the third taper pipe.

[0013] Compared to existing technologies, the present invention offers advantages in that it incorporates a water ingress prevention device between the user pipeline and the gas supply pipeline, trapping water within the user pipeline and thus reducing losses. The plastic ball engages the contoured cavity to close the gas supply port, while its entry into the expansion cavity connects the gas outlet port and the gas supply port. The pressure differential across the plastic ball controls its movement, automatically connecting the gas outlet port and the gas supply port during ventilation and automatically closing the gas supply port when water backflows into the gas outlet port, eliminating the need for manual intervention. The detachable gas supply and gas outlet ports facilitate replacement of the plastic ball and draining backflowing water from the pipeline. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0015] Fig. 1 It is an overall schematic diagram of the utility model;

[0016] Fig. 2 This is an explosion and cross-sectional diagram of the utility model;

[0017] Fig. 3 This is a cross-sectional diagram of the gas supply end of the utility model;

[0018] Fig. 4 This is a cross-sectional diagram of the gas outlet end of the utility model.

[0019] Among them: 1. Air outlet; 2. Air supply end; 3. Straight pipe; 4. Plastic ball; 11. External thread; 12. Baffle; 13. First tapered tube; 14. Second tapered tube; 15. Expansion cavity; 121. Through port; 122. Round hole; 123. Reinforcement rib; 124. Fillet; 21. Internal thread; 22. Contoured cavity; 23. Third tapered tube; 31. Polygonal protrusion. DETAILED DESCRIPTION

[0020] To make the purpose, technical solution, and advantages of the present invention more clear, the technical solution of the present invention will be described clearly and completely below. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments derived by persons of ordinary skill in the art without inventive effort are also within the scope of protection of the present invention.

[0021] The specific implementation of the present invention will be described below with reference to the accompanying drawings:

[0022] like Figs. 1-4As shown, a water inlet prevention device includes an air outlet end 1 and a gas supply end 2, the air outlet end 1 and one end of the gas supply end 2 are communicated with the user pipeline and the gas supply pipeline through flanges respectively, and the other end is detachably connected through a straight pipe 3. The straight pipe 3 includes a first straight pipe 3 and a second straight pipe 3, the first straight pipe 3 is integrated with the air outlet end 1 and is provided with an external thread 11 near one end of the gas supply end 2. The second straight pipe 3 is integrated with the gas supply end 2 and is provided with an internal thread 21 matched with the external thread 11 near one end of the air outlet end 1. When the first straight pipe 3 and the second straight pipe 3 are assembled, sealing glue can be added at the connection to improve the sealing performance of the assembly. The straight pipe 3 is provided with a plastic ball 4 which can roll in the straight pipe 3. The free installation and removal of the gas supply end 2 and the air outlet end 1 facilitate the replacement of the aging and worn plastic ball 4 or the discharge of water flowing into the pipeline. The straight pipe 3 is provided with a polygonal protrusion 31 which facilitates the manual or tool operation of clamping and rotating the air outlet end 1 and the gas supply end 2 relative to each other.

[0023] The air outlet end 1 is provided with an expansion chamber 15 which is communicated with the straight pipe 3 through a second taper pipe 14. The diameter of the device is transitioned from the smaller diameter of the straight pipe 3 to the larger diameter of the expansion chamber 15 through the second taper pipe 14, which facilitates the plastic ball 4 to enter the expansion chamber 15 and return to the straight pipe 3 under the action of the pressure difference between the two sides. The second taper pipe 14 promotes the plastic ball 4 to be coaxial with the straight pipe 3, which facilitates the plastic ball 4 to enter the straight pipe 3 and prevents the plastic ball 4 from being stuck at the edge of the expansion chamber 15.

[0024] The baffle 12 is arranged in the expansion cavity 15, and a plurality of through holes are arranged on the baffle 12 in an array. When the plastic ball 4 enters the expansion cavity 15, the baffle 12 limits the plastic ball 4 from continuing to advance, and gas can pass through the baffle 12 when passing through the through holes. The baffle 12 is in a conical shape, and the middle part of the baffle 12 extends away from the straight pipe 3. The through holes on the conical baffle 12 have a larger area, which is beneficial to gas ventilation and improves the efficiency of gas ventilation, and facilitates the plastic ball 4 to return to the middle part of the baffle. The middle part of the baffle 12 is provided with a circular hole 122, and the diameter of the circular hole 122 is smaller than the diameter of the plastic ball 4. During normal ventilation, when the plastic ball 4 is embedded in the circular hole 122, the plastic ball 4 does not randomly roll in the expansion cavity 15, thereby reducing the wear of the plastic ball 4 and prolonging the service life of the plastic ball 4. A plurality of reinforcing ribs 123 are arranged on the surface of the baffle 12 close to the plastic ball 4 in a circumferential direction and are uniformly spaced. The reinforcing ribs 123 can improve the anti-deformation ability of the baffle 12, limit the movement of the plastic ball 4 on the plane of the baffle 12, and play a guiding role for the plastic ball 4. One end of the reinforcing rib 123 close to the inner wall of the gas outlet end 1 is provided with a round corner 124 matched with the plastic ball 4. When the plastic ball 4 cooperates with the round corner 124, the plastic ball 4 has not been completely embedded in the circular hole 122, and the gas can pass through the circular hole 122, thereby limiting the random movement of the plastic ball 4 while improving the efficiency of gas ventilation. The expansion cavity 15 is provided with a first tapered pipe 13 away from the straight pipe 3, and the expansion cavity 15 is connected with an external pipeline through the first tapered pipe 13. The gas enters the expansion cavity 15 with a larger pipe diameter, and the flow rate is slowed down. The first tapered pipe 13 gradually shrinks the pipe diameter of the device from the expansion cavity 15 to the flange end, so that the gas flow rate is restored to the flow rate before entering the expansion cavity 15.

[0025] The gas supply end 2 is provided with a profiling cavity 22 matched with the plastic ball 4. When the water body backflows occurs in the gas outlet end 1, the plastic ball 4 passes through the straight pipe 3 and cooperates with the profiling cavity 22, and the gas supply end 2 is closed. In this way, the water body is prevented from further backflowing into the gas supply pipeline. The profiling cavity 22 is provided with a third tapered pipe 23 away from the straight pipe 3, and the profiling cavity 22 is connected with an external pipeline through the third tapered pipe 23. The gas uniformly diffuses into the gas supply end 2 through the third tapered pipe 23, and the gas flow is stable.

[0026] The working principle of the specific implementation mode of the utility model is as follows: the polygonal convex block 31 is clamped, and the gas outlet end 1 and the gas supply end 2 are relatively screwed into the spiral, and then the gas outlet end 1 and the gas supply end 2 are respectively connected to the user pipeline and the gas supply pipeline through the flanges. During normal gas supply, the gas flows into the gas supply end 2, and the plastic ball 4 rolls along the straight pipe 3 under the action of the gas pressure, enters the expansion cavity 15, the gas passes through the through hole 121 and the circular hole 122, and finally flows out from the gas outlet end 1. When the water body backflows occurs in the gas outlet end 1, the water body passes through the baffle 12, and the plastic ball 4 returns to the gas supply end 2 along the straight pipe 3 under the action of the water pressure and cooperates with the profiling cavity 22, so that the gas supply end 2 is disconnected from the gas supply pipeline, thereby preventing the water body from further flowing into the gas supply pipeline.

[0027] It should be noted that when an element is referred to as being "on" another element, it can be directly on the other element or intervening elements can also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements can also be present. As used herein, the terms "above," "below," "left," "right," "front," "back," and the like merely describe the orientation in the drawings.

[0028] The above description is only preferred embodiments of the present application, and is not intended to limit the present application in any form. Although the present application has been disclosed as above with preferred embodiments, it is not intended to limit the present application, and any person skilled in the art can make some changes or modifications to the above disclosed technical content to make equivalent embodiments with equivalent changes, as long as they do not deviate from the technical solution of the present application. Any modification, equivalent change and modification of the above embodiments made according to the technical essence of the present application still belong to the scope of the technical solution of the present application.

Claims

1. A water entry prevention device, characterized by: The utility model provides an air supply device, including air outlet end (1), air supply end (2), air outlet end (1) with air supply end (2) are detachably connected through straight pipe (3), be equipped with plastic ball (4) in straight pipe (3), air outlet end (1) is equipped with expansion chamber (15), be equipped with baffle (12) in expansion chamber (15), be equipped with a plurality of through -holes of array arrangement on baffle (12);Air supply end (2) is equipped with the profiling cavity (22) of cooperation plastic ball (4).

2. The water ingress protection device of claim 1, wherein: The straight pipe (3) includes a first straight pipe and a second straight pipe, the first straight pipe is integrated with the air outlet end (1) and is provided with an external thread (11) near one end of the air supply end (2), and the second straight pipe is integrated with the air supply end (2) and is provided with an internal thread (21) cooperating with the external thread (11) near one end of the air outlet end (1).

3. The water entry preventing apparatus according to claim 1, characterized by: The straight pipe (3) is provided with a polygonal protrusion (31).

4. The water ingress protection device of claim 1, wherein: The expansion chamber (15) is communicated with the straight pipe (3) through a second taper pipe (14).

5. The water entry preventing apparatus according to claim 1, characterized by: The baffle (12) is conical, and the middle part of the baffle (12) extends away from the straight pipe (3).

6. The water entry preventing apparatus according to claim 1, characterized by: The middle part of the baffle (12) is provided with a circular hole (122), and the diameter of the circular hole (122) is smaller than the diameter of the plastic ball (4).

7. The water entry preventing apparatus according to claim 1, characterized by: The baffle (12) is provided with a plurality of uniformly spaced reinforcing ribs (123) on the periphery of one side close to the plastic ball (4), and the reinforcing rib (123) is provided with a rounded corner (124) cooperating with the plastic ball (4) away from one end of the inner wall of the air outlet end (1).

8. The water entry preventing apparatus according to claim 1, characterized by: The expansion chamber (15) is provided with a first taper pipe (13) away from one end of the straight pipe (3), and the expansion chamber (15) is communicated with an external pipeline through the first taper pipe (13).

9. The water entry preventing apparatus according to claim 1, characterized by: The profiling cavity (22) is provided with a third taper pipe (23) away from one end of the straight pipe (3), and the profiling cavity (22) is communicated with an external pipeline through the third taper pipe (23).

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