Water hammer preventing device for pipeline

Abstract

The utility model relates to the technical field of pipeline protection, and discloses a pipeline water hammer preventing device which comprises a fixing cover, a water outlet pipe and a water inlet pipe are fixedly installed on the outer wall of the fixing cover respectively, the bottom of the fixing cover is in threaded connection with a filtering tank, and the bottom of the filtering tank is movably connected with a movable base. A locking block is fixedly mounted on the outer wall of the filter tank, and an insertion block is fixedly mounted on the outer wall of the movable base. Water hammer reaction is avoided through the air bag, during water hammer reaction, the air bag is pulled upwards, then the air bag drives the magnetic block to move upwards, when water hammer reaction is finished, the magnetic block is attracted through the magnetic ring, the magnetic block is pulled downwards, then the air bag is reset quickly, meanwhile, the rotating head is rotated, and then the rotating head drives the threaded column to rotate. And the threaded column is in threaded connection with the lifting plate to drive the lifting plate to do axial movement on the outer wall of the threaded column, so that the distance between the magnetic ring and the magnetic block is adjusted, and the clearance attraction force between the magnetic ring and the magnetic block is adjusted.

Description

Technical Field

[0001] This utility model relates to the field of pipeline protection technology, specifically a pipeline waterproof hammer device. Background Technology

[0002] Water hammer refers to the phenomenon where, inside a water pipe with a smooth inner wall, water flows freely. When an open valve is suddenly closed, the water flow exerts pressure on the valve and the pipe wall, primarily on the valve.

[0003] Most existing pipeline waterproof hammer devices consist of a filter tank and an airbag. However, the airbag is located at the bottom of the filter tank. Due to the special nature of the airbag, when liquid enters the interior of the filter tank, the airbag floats upward, resulting in poor waterproof hammer effect. At the same time, because the airbag is located at the bottom of the filter element, the filter element must be removed first when the airbag is removed or replaced, making the removal process extremely troublesome. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a pipeline waterproof hammer device, which has the advantages of airbag fixation and easy airbag replacement, thus solving the problems mentioned in the background art.

[0005] This utility model provides the following technical solution: a pipeline water hammer device, including a fixed cover, an outlet pipe and an inlet pipe fixedly installed on the outer wall of the fixed cover respectively, a filter tank threadedly connected to the bottom of the fixed cover, a movable base movably connected to the bottom of the filter tank, a locking block fixedly installed on the outer wall of the filter tank, an insert block fixedly installed on the outer wall of the movable base, a filter element fixedly assembled on the inner wall of the filter tank, an air bladder provided on the inner wall of the movable base, a locking groove opened on the outer wall of the insert block, a locking pin slidably connected to the inner wall of the locking block, a pull block fixedly installed on the outer wall of the locking pin, a spring provided on the inner wall of the locking block, a magnetic block fixedly installed at the bottom of the air bladder, a limit rod fixedly installed on the inner wall of the movable base, a lifting plate slidably sleeved on the outer wall of the limit rod, a magnetic ring fixedly installed on the outer wall of the lifting plate, a rotating head rotatably connected to the inner wall of the movable base, and a threaded column rotatably connected to the inner wall of the movable base.

[0006] As a preferred technical solution of this utility model: the number of the limiting rods is two, and the two limiting rods are symmetrically arranged, and the two limiting rods pass through both sides of the lifting plate.

[0007] As a preferred technical solution of this utility model: the threaded column passes through the lifting plate, and the lifting plate and the threaded column are threadedly connected.

[0008] As a preferred embodiment of this utility model, the diameter of the magnetic block is the same as the width of the magnetic ring, and the magnetic block is located above the magnetic ring.

[0009] As a preferred technical solution of this utility model: the diameter of the locking pin on the side near the insert block is the same as that of the locking groove, and the height of the locking pin and the locking groove are the same.

[0010] As a preferred technical solution of this utility model: the diameter of the top inner wall of the movable base is adapted to the size of the airbag, and the airbag is located on the inner wall of the movable base.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] 1. This pipeline water hammer prevention device uses an airbag to prevent water hammer reactions. When a water hammer reaction occurs, the airbag is pulled upward, which in turn causes the airbag to move the magnetic block upward. When the water hammer reaction ends, the magnetic ring attracts the magnetic block, causing the magnetic block to be pulled downward, which in turn causes the airbag to quickly return to its original position. At the same time, the rotating head is rotated, which in turn causes the threaded column to rotate. The threaded column is connected to the lifting plate by threads, which causes the lifting plate to move axially on the outer wall of the threaded column. This adjusts the distance between the magnetic ring and the magnetic block, thereby adjusting the attraction force between the magnetic ring and the magnetic block.

[0013] 2. The pipeline waterproof hammer device, by pulling the pull block, causes the pull block to separate the locking pin from the inner wall of the locking groove. At this time, the fixed relationship of the movable base disappears, and the movable base can be removed. Then the movable base drives the air bag to be removed from the inner wall of the filter tank. At this time, by rotating the threaded column, the lifting plate moves downward, which in turn causes the lifting plate to move the magnetic ring downward, so that it can be replaced. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0015] Figure 2 This is a schematic cross-sectional view of the present invention.

[0016] Figure 3 This is a schematic diagram of the exploded structure of this utility model;

[0017] Figure 4 This is a schematic diagram of the movable base structure of this utility model;

[0018] Figure 5 This is a schematic cross-sectional view of the movable base of this utility model;

[0019] Figure 6 This utility model Figure 4 Enlarged structural diagram at point A in the middle.

[0020] In the diagram: 1. Fixed cover; 2. Filter tank; 3. Outlet pipe; 4. Inlet pipe; 5. Movable base; 6. Locking block; 7. Inserting block; 8. Filter element; 9. Airbag; 10. Locking groove; 11. Locking pin; 12. Pulling block; 13. Spring; 14. Magnetic block; 15. Lifting plate; 16. Threaded column; 17. Limiting rod; 18. Rotating head; 19. Magnetic ring. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figure 1 - Figure 6 A pipeline water hammer protection device includes a fixed cover 1, an outlet pipe 3 and an inlet pipe 4 fixedly installed on the outer wall of the fixed cover 1, a filter tank 2 threadedly connected to the bottom of the fixed cover 1, a movable base 5 movably connected to the bottom of the filter tank 2, a locking block 6 fixedly installed on the outer wall of the filter tank 2, an insert block 7 fixedly installed on the outer wall of the movable base 5, a filter element 8 fixedly assembled on the inner wall of the filter tank 2, an air bladder 9 provided on the inner wall of the movable base 5, a locking groove 10 opened on the outer wall of the insert block 7, a locking pin 11 slidably connected to the inner wall of the locking block 6, a pull block 12 fixedly installed on the outer wall of the locking pin 11, a spring 13 provided on the inner wall of the locking block 6, a magnetic block 14 fixedly installed at the bottom of the air bladder 9, a limit rod 17 fixedly installed on the inner wall of the movable base 5, a lifting plate 15 slidably sleeved on the outer wall of the limit rod 17, a magnetic ring 19 fixedly installed on the outer wall of the lifting plate 15, a rotating head 18 rotatably connected to the inner wall of the movable base 5, and a threaded column 16 rotatably connected to the inner wall of the movable base 5.

[0023] In the above structure, the top size of the insert 7 is adapted to the inner wall of the locking block 6, and the insert 7 is located inside the locking block 6. Through the locking block 6 and the insert 7, a connection is established between the filter tank 2 and the movable base 5.

[0024] In a preferred embodiment, there are two limiting rods 17, and the two limiting rods 17 are symmetrically arranged, with the two limiting rods 17 passing through both sides of the lifting plate 15.

[0025] In the above structure, the lifting plate 15 is penetrated by two limiting rods 17, which limit the two sides of the lifting plate 15. This ensures that the lifting plate 15 can only slide on the outer wall of the two limiting rods 17 when it moves, thus preventing the lifting plate 15 and the magnetic ring 19 from rotating or tilting.

[0026] In a preferred embodiment, the threaded post 16 passes through the lifting plate 15, and the lifting plate 15 and the threaded post 16 are threadedly connected.

[0027] In the above structure, by rotating the rotating head 18, the rotating head 18 drives the threaded column 16 to rotate, so that the threaded column 16, through the threaded connection with the lifting plate 15, drives the lifting plate 15 to move axially on the outer wall of the threaded column 16.

[0028] In a preferred embodiment, the diameter of the magnetic block 14 is the same as the width of the magnetic ring 19, and the magnetic block 14 is located above the magnetic ring 19.

[0029] In the above structure, when the airbag 9 is located on the inner wall of the movable base 5, the magnetic block 14 at its bottom is located directly above the magnetic ring 19. At this time, the magnetic ring 19 attracts the magnetic block 14, which in turn pulls the airbag 9 downward, so that the airbag 9 will not move upward due to the buoyancy of the water.

[0030] In a preferred embodiment, the side of the locking pin 11 closest to the insert block 7 has the same diameter as the locking groove 10, and the locking pin 11 and the locking groove 10 have the same height.

[0031] In the above structure, the spring 13 pushes the locking pin 11, causing the side of the locking pin 11 close to the insert block 7 to enter the inner wall of the locking groove 10, thereby fixing the position of the locking groove 10, fixing the position of the insert block 7, and thus fixing the filter tank 2 and the movable base 5.

[0032] In a preferred embodiment, the diameter of the top inner wall of the movable base 5 is adapted to the size of the airbag 9, and the airbag 9 is located on the inner wall of the movable base 5.

[0033] In the above structure, by placing the airbag 9 on the top inner wall of the movable base 5, the airbag 9 is adapted to the size of the inner wall of the movable base 5, so that the magnetic block 14 at the bottom of the airbag 9 will not undergo a large positional shift.

[0034] Working Principle: When using this equipment, connect the outlet pipe 3 and the inlet pipe 4 to the pipeline respectively, so that the liquid enters the interior of the filter tank 2 through the inlet pipe 4, and is discharged from the inner wall of the outlet pipe 3 by the pressure inside the filter tank 2. At this time, the medium is filtered by the filter element 8, and the air bag 9 prevents water hammer reaction. When water hammer reaction occurs, the air bag 9 is pulled upward, which in turn causes the air bag 9 to drive the magnetic block 14 to move upward. When the water hammer reaction ends, the magnetic ring 19 attracts the magnetic block 14, which is pulled downward, thus causing the air bag 9 to quickly return to its original position. At the same time, the rotating head 18 is rotated, which causes the rotating head 18 to move upward. The rotating threaded column 16 causes the threaded column 16 to be connected to the lifting plate 15 by threads, which in turn causes the lifting plate 15 to move axially on the outer wall of the threaded column 16. This adjusts the distance between the magnetic ring 19 and the magnetic block 14, thereby adjusting the attraction between the magnetic ring 19 and the magnetic block 14. When the airbag 9 needs to be replaced, the pull block 12 is pulled, causing the pull block 12 to separate the locking pin 11 from the inner wall of the locking groove 10. At this time, the fixed relationship of the movable base 5 disappears, and the movable base 5 can be removed. The movable base 5 then takes the airbag 9 out of the inner wall of the filter canister 2 for replacement.

[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A pipe waterproof hammer device, comprising a fixing cover (1), characterized in that: The outer wall of the fixed cover (1) is fixedly installed with an outlet pipe (3) and an inlet pipe (4). The bottom of the fixed cover (1) is threadedly connected to a filter tank (2). The bottom of the filter tank (2) is movably connected to a movable base (5). The outer wall of the filter tank (2) is fixedly installed with a locking block (6). The outer wall of the movable base (5) is fixedly installed with an insert block (7). The inner wall of the filter tank (2) is fixedly fitted with a filter element (8). The inner wall of the movable base (5) is provided with an airbag (9). The outer wall of the insert block (7) is provided with a locking groove (10). The inner wall of the locking block (6) is slidably connected to... There is a locking pin (11), and a pull block (12) is fixedly installed on the outer wall of the locking pin (11). A spring (13) is provided on the inner wall of the locking block (6). A magnetic block (14) is fixedly installed at the bottom of the airbag (9). A limit rod (17) is fixedly installed on the inner wall of the movable base (5). A lifting plate (15) is slidably sleeved on the outer wall of the limit rod (17). A magnetic ring (19) is fixedly installed on the outer wall of the lifting plate (15). A rotating head (18) is rotatably connected to the inner wall of the movable base (5). A threaded column (16) is rotatably connected to the inner wall of the movable base (5).

2. The pipeline waterproof hammer device according to claim 1, characterized in that: The number of the limiting rods (17) is two, and the two limiting rods (17) are symmetrically arranged, and the two limiting rods (17) pass through both sides of the lifting plate (15).

3. The pipeline waterproof hammer device according to claim 1, characterized in that: The threaded post (16) passes through the lifting plate (15), and the lifting plate (15) and the threaded post (16) are threadedly connected.

4. A pipeline waterproof hammer device according to claim 1, characterized in that: The diameter of the magnetic block (14) is the same as the width of the magnetic ring (19), and the magnetic block (14) is located above the magnetic ring (19).

5. A pipeline waterproof hammer device according to claim 1, characterized in that: The locking pin (11) has the same diameter as the locking groove (10) on the side near the insert (7), and the locking pin (11) has the same height as the locking groove (10).

6. A pipeline waterproof hammer device according to claim 1, characterized in that: The diameter of the inner wall of the top of the movable base (5) is adapted to the size of the airbag (9), and the airbag (9) is located on the inner wall of the movable base (5).

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