A check valve valve cavity polishing device

Abstract

The utility model discloses a check valve valve chamber polishing device belongs to valve chamber polishing technical field, solved because the inflow channel and the outflow channel are misaligned, so that make in actual to check valve's valve chamber is polished, only through single channel to polish, can lead to the problem of not completely polishing in check valve's valve chamber. Including sand blasting machine, the workstation of setting in sand blasting machine one side and the electric slide rail of fixed connection on the workstation, there are two slide seat on the electric slide rail, two the slide seat's in the electric slide rail length direction displacement is opposite or opposite, the sand blasting end of sand blasting machine is connected with first spout pipe and second spout pipe. The utility model polishes check valve valve chamber, first uses the pre -fixed subassembly fixed valve body, then will valve body and sand blasting plug alignment, starts electric slide rail and makes sand blasting plug insert two channels, finally starts sand blasting machine, and high pressure air takes abrasive and enters the valve body in pipeline and completes polishing, ensures valve chamber polishing completely.

Description

Technical Field

[0001] This utility model relates to the field of valve cavity polishing technology, and in particular to a check valve cavity polishing device. Background Technology

[0002] A check valve is an automatic valve primarily used to prevent backflow of fluid in piping systems. It utilizes the fluid's own pressure as a power source to automatically control the opening and closing of the valve disc. When fluid flows in the forward direction, the valve disc opens, allowing fluid to pass smoothly; conversely, when fluid attempts to flow backward, the valve disc automatically closes, blocking the flow. Check valves are widely used in water supply and drainage, petrochemical, and power industries to ensure unidirectional fluid flow and protect the normal operation of equipment and systems.

[0003] In a check valve, the valve cavity is divided into two sections: an inlet channel and an outlet channel that is misaligned with the inlet channel. Because the inlet and outlet channels are misaligned, polishing the valve cavity of the check valve by polishing only a single channel may result in incomplete polishing.

[0004] Therefore, a check valve cavity polishing device is proposed to solve or alleviate the above problems. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a check valve cavity polishing device.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A check valve cavity polishing device includes a sandblasting machine, a worktable disposed on one side of the sandblasting machine, and an electric slide rail fixedly connected to the worktable. Two sliding blocks are located on the electric slide rail, and the two sliding blocks are displaced towards or away from each other along the length of the electric slide rail. The sandblasting end of the sandblasting machine is connected to a first ejector pipe and a second ejector pipe. The ends of the first and second ejector pipes away from the sandblasting machine are connected to sandblasting plugs via a corrugated metal connecting pipe. Two sandblasting plugs are respectively disposed on two sliding blocks, and each sandblasting plug is frustoconical in shape. The sand suction end of the sandblasting machine is connected to a corrugated metal recovery pipe, the feed end of which is vertically oriented, and the central axes of the two sandblasting plugs are perpendicular to the central axis of the feed end of the corrugated metal recovery pipe.

[0008] Preferably, the feed end of the metal corrugated recovery pipe is provided with a pre-fixing component that temporarily fixes the check valve body.

[0009] Preferably, the pre-fixing assembly includes a limiting flange fixedly connected to the outer ring of the feed end of the corrugated metal recycling pipe. The limiting flange has several arc-shaped through grooves extending along its thickness direction. A rotatable rotating pipe is slidably connected in the arc-shaped through grooves. Both ends of the rotating pipe are fixedly connected to limiting nuts located on both sides of the limiting flange. The two limiting nuts located at both ends of the same rotating pipe are threadedly connected to a support bolt.

[0010] Preferably, the electric slide rail includes a track, a drive motor fixedly connected to one end of the track, a double-threaded lead screw coaxially connected to the rotor shaft of the drive motor, and two lead screw nuts respectively threaded onto two sections of the double-threaded lead screw. The two lead screw nuts are respectively fixedly connected to two slide blocks. A mounting base is fixedly connected to the slide block, and the sandblasting plug is mounted on the mounting base.

[0011] Preferably, the mounting base includes a horizontal plate portion fixedly connected to the slide and a vertical plate portion fixedly connected to the horizontal plate portion. The vertical plate portion has a groove through which it passes. The outer ring of the sandblasting plug is fixedly connected to a limiting plate. The sandblasting plug is connected to a sleeve that can be embedded in the groove. The sleeve is connected to a connecting sleeve that can be embedded in a corrugated metal connecting pipe.

[0012] Preferably, both the limiting plate and the vertical plate are provided with a plurality of corresponding connecting holes, and connecting bolts are inserted into the connecting holes, with connecting nuts threaded onto the connecting bolts.

[0013] Preferably, the outer ring of the sandblasting plug is coated with a rubber coating with a thickness of 0.5-1cm.

[0014] This utility model has the following beneficial effects:

[0015] This invention relates to a method for polishing the check valve cavity. First, a support bolt is passed through the flange hole in the valve body and threaded into the limit nut, ensuring a close fit between the flange and the limit nut. The inlet and outlet channels are connected via a corrugated metal recovery pipe to prevent leakage. During assembly and disassembly, the limit nut is unrestricted, and the rotating pipe can rotate or slide within the arc-shaped groove to adjust its position. Then, both ends of the valve body are aligned with the sandblasting plug on the worktable. The electric slide rail is activated, causing the slide block to move the sandblasting plug closer and insert it into the valve body channel. The rubber coating on the outer ring of the sandblasting plug prevents friction damage. Finally, the sandblasting machine is started, and high-pressure air carrying abrasive material enters the valve body through the pipeline to complete the polishing, preventing incomplete polishing of the valve cavity. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0019] Figure 3 for Figure 1 Enlarged view of point B in the middle;

[0020] Figure 4 for Figure 1 Enlarged view of point C in the middle.

[0021] 1. Sandblasting machine; 2. Corrugated metal recovery pipe; 3. First spray pipe; 4. Second spray pipe; 5. Corrugated metal connecting pipe; 6. Workbench; 7. Electric slide rail; 8. Mounting base; 9. Groove; 10. Insert sleeve; 11. Connecting sleeve; 12. Sandblasting plug; 13. Limiting plate; 14. Connecting bolt; 15. Connecting nut; 16. Limiting flange; 17. Arc-shaped through groove; 18. Pipe rotation section; 19. Limiting nut section; 20. Support bolt. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0023] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0024] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0025] In the description of this utility model, it should be understood that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use, or the orientation or positional relationship commonly understood by those skilled in the art. They are only used to facilitate the description of this utility model and to simplify the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0026] Furthermore, the terms "first," "second," and "third" are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0027] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0028] A check valve cavity polishing device, such as Figures 1 to 4 As shown, the system includes a sandblasting machine 1, a workbench 6 located on one side of the sandblasting machine 1, and an electric slide rail 7 fixedly connected to the workbench 6. The electric slide rail 7 has two sliding blocks, which are displaced towards or away from each other along the length of the electric slide rail 7. The sandblasting end of the sandblasting machine 1 is connected to a first ejector pipe 3 and a second ejector pipe 4. The ends of the first ejector pipe 3 and the second ejector pipe 4 away from the sandblasting machine 1 are connected to sandblasting plugs 12 via a corrugated metal connecting pipe 5. The two sandblasting plugs 12 are respectively located on the two sliding blocks. The sandblasting plugs 12 are frustum-shaped, and their outer rings are coated with a rubber coating with a thickness of 0.5-1cm. The sand suction end of the sandblasting machine 1 is connected to a corrugated metal recovery pipe 2. The feed end of the corrugated metal recovery pipe 2 is vertically oriented, and the central axes of the two sandblasting plugs 12 are perpendicular to the central axis of the feed end of the corrugated metal recovery pipe 2.

[0029] The feed end of the metal corrugated recovery pipe 2 is provided with a pre-fixing assembly for temporarily fixing the valve body of the check valve. The pre-fixing assembly includes a limiting flange 16 fixedly connected to the outer ring of the feed end of the metal corrugated recovery pipe 2. The limiting flange 16 has several arc-shaped through grooves 17 extending along its thickness direction. A rotatable rotating pipe part 18 is slidably connected in the arc-shaped through grooves 17. Both ends of the rotating pipe part 18 are fixedly connected to limiting nut parts 19 located on both sides of the limiting flange 16. The two limiting nut parts 19 located at both ends of the same rotating pipe part 18 are threadedly connected to a support bolt 20.

[0030] The electric slide rail 7 includes a track, a drive motor fixedly connected to one end of the track, a double-threaded lead screw coaxially connected to the rotor shaft of the drive motor, and two lead screw nuts threadedly connected to two sections of the double-threaded lead screw. The two lead screw nuts are fixedly connected to two slide blocks respectively. A mounting base 8 is fixedly connected to the slide block. A sandblasting plug 12 is mounted on the mounting base 8. The mounting base 8 includes a horizontal plate fixedly connected to the slide block and a vertical plate fixedly connected to the horizontal plate. A groove 9 is provided on the vertical plate to pass through it. A limiting plate 13 is fixedly connected to the outer ring of the sandblasting plug 12. The sandblasting plug 12 is connected to a sleeve 10 that can be embedded in the groove 9. The sleeve 10 is connected to a connecting sleeve 11 that can be embedded in the corrugated metal connecting pipe 5. Several corresponding connecting holes are provided on the limiting plate 13 and the vertical plate. A connecting bolt 14 passes through the connecting holes. A connecting nut 15 is threadedly connected to the connecting bolt 14.

[0031] When polishing the valve cavity of the check valve, the present invention first passes the support bolt 20 through the hole on the flange between the inlet and outlet channels on the valve body of the check valve, and then makes the support bolt 20 threadedly connected to the limit nut 19, so that the flange between the inlet and outlet channels on the valve body of the check valve can fit together with the limit plate 13, so that the connection between the inlet and outlet channels can be connected to the metal corrugated recovery pipe 2, avoiding leakage during the recovery of debris and abrasive. At the same time, the limit nut 19 is not restricted during assembly and disassembly, and it can also rotate smoothly in the arc-shaped through groove 17 through the rotating pipe 18. If the position of the limit nut 19 needs to be adjusted, its position can also be changed by sliding the rotating pipe 18 in the arc-shaped through groove 17.

[0032] Next, align the inlet and outlet channels at both ends of the check valve body with the sandblasting plugs 12 on both sides of the worktable 6, and start the electric slide rail 7. This causes the two slides to move towards each other, which in turn drives the sandblasting plugs 12 on both sides to move closer together. Since the sandblasting plug 12 itself is frustum-shaped, the sandblasting plug 12 can still adapt to the different cross-sectional areas of the inlet and outlet channels on both sides of the check valve body, and insert into the inlet and outlet channels of the check valve body. The rubber coating on the outer ring of the sandblasting plug 12 ensures that when the blasting plug comes into contact with the edge of the inlet and outlet channels of the check valve body, it will not cause friction damage to the sandblasting plug 12 or the check valve body itself, thus ensuring that the final processed product quality is up to standard.

[0033] Finally, the sandblasting machine 1 is started. High-pressure air carrying abrasive enters the check valve body through the first ejector pipe 3, the second ejector pipe 4, the metal corrugated connecting pipe 5, and the sandblasting plug 12 in sequence. Finally, it leaves through the metal corrugated recovery pipe 2 and returns to the sandblasting machine 1. In this way, the check valve cavity can be polished, avoiding the situation where the check valve cavity is not completely polished due to the misalignment of the inlet and outlet channels.

[0034] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A polishing device for the valve cavity of a check valve, characterized in that, The system includes a sandblasting machine (1), a workbench (6) set on one side of the sandblasting machine (1), and an electric slide rail (7) fixedly connected to the workbench (6). There are two slide seats on the electric slide rail (7). The two slide seats are displaced in opposite directions or away from each other in the length direction of the electric slide rail (7). The sandblasting end of the sandblasting machine (1) is connected to a first ejector pipe (3) and a second ejector pipe (4). The ends of the first ejector pipe (3) and the second ejector pipe (4) away from the sandblasting machine (1) are connected to a sandblasting plug (12) through a metal corrugated connecting pipe (5). The two sandblasting plugs (12) are respectively set on the two slide seats. The sandblasting plugs (12) are frustum-shaped. The sand suction end of the sandblasting machine (1) is connected to a metal corrugated recovery pipe (2). The feed end of the metal corrugated recovery pipe (2) is set vertically, and the central axis of the two sandblasting plugs (12) is set perpendicular to the central axis of the feed end of the metal corrugated recovery pipe (2).

2. The check valve cavity polishing device according to claim 1, characterized in that, The feed end of the metal corrugated recovery pipe (2) is provided with a pre-fixing component that temporarily fixes the valve body of the check valve.

3. The check valve cavity polishing device according to claim 2, characterized in that, The pre-fixed assembly includes a limiting flange (16) fixedly connected to the outer ring of the feed end of the metal corrugated recycling pipe (2). The limiting flange (16) has several arc-shaped through grooves (17) extending along its thickness direction. A rotatable rotating pipe part (18) is slidably connected in the arc-shaped through groove (17). Both ends of the rotating pipe part (18) are fixedly connected to limiting nut parts (19) located on both sides of the limiting flange (16). The two limiting nut parts (19) located at both ends of the same rotating pipe part (18) are threadedly connected to a support bolt (20).

4. The check valve cavity polishing device according to claim 1, characterized in that, The electric slide rail (7) includes a track, a drive motor fixedly connected to one end of the track, a double-threaded lead screw coaxially connected to the rotor shaft of the drive motor, and two lead screw nuts respectively threaded onto two sections of the double-threaded lead screw. The two lead screw nuts are respectively fixedly connected to two slide seats. A mounting seat (8) is fixedly connected to the slide seat. The sandblasting plug (12) is mounted on the mounting seat (8).

5. A check valve cavity polishing device according to claim 4, characterized in that, The mounting base (8) includes a horizontal plate portion fixedly connected to the slide and a vertical plate portion fixedly connected to the horizontal plate portion. The vertical plate portion has a groove (9) through which it passes. The outer ring of the sandblasting plug (12) is fixedly connected to a limiting plate (13). The sandblasting plug (12) is connected to a sleeve (10) that can be embedded in the groove (9). The sleeve (10) is connected to a connecting sleeve (11) that can be embedded in the corrugated metal connecting pipe (5).

6. A check valve cavity polishing device according to claim 5, characterized in that, The limiting plate (13) and the vertical plate are provided with several corresponding connecting holes, and connecting bolts (14) are inserted into the connecting holes. The connecting bolts (14) are threaded with connecting nuts (15).

7. A check valve cavity polishing device according to claim 1, characterized in that, The outer ring of the sandblasting plug (12) is coated with a rubber coating with a thickness of 0.5-1cm.

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