Negative pressure communication conversion device

Abstract

The utility model relates to a negative pressure communication conversion device which comprises an equipment main body which comprises a bottom block, a top block, a mounting groove and a movable blind hole; the slide valve is arranged between the bottom block and the top block; the threaded column is in threaded connection with the bottom block and extends into the bottom block; the movable block is arranged in the movable blind hole, is in contact with the threaded column and comprises a communicating hole; the reset spring is arranged between the movable block and the bottom block; a sealing ring is arranged outside the filter plate, and the filter plate is arranged in the mounting groove. According to the utility model, the slide valve, the equipment main body and other parts are arranged, and the slide valve is matched with the equipment main body, so that the suction tank can be mutually communicated with the two mounting grooves through the slide valve, that is, the slide valve only can be mutually communicated with a single mounting groove at the same time, and the effect of changing a path is further realized; when the suction head is blocked in the blood and bone residue suction process, another suction head is used for cleaning.

Description

Technical Field

[0001] The utility model relates to the technical field of medical waste cleaning devices, and particularly relates to a negative pressure connection conversion device. Background Art

[0002] During surgical operations, due to the removal of a large amount of blood and bone residues, the traditional method usually uses a negative pressure suction tank, which is connected with a suction tube, and a suction head is installed on the suction tube to remove blood and bone residues and keep the operation proceeding normally.

[0003] During the process of using a negative pressure suction tank (referred to as a negative pressure tank) to clean blood and bone residues, blockages often occur. The traditional method is to stop working and manually clean it. This cleaning method will cause the accumulation of blood and bone residues, have a negative impact on the operation, and prolong the operation time. Summary of the Utility Model

[0004] Based on the above description, the utility model provides a negative pressure connection conversion device to solve the technical problem that the existing negative pressure suction tank is inconvenient to dredge after being blocked.

[0005] The technical solution for the utility model to solve the above technical problem is as follows: a negative pressure connection conversion device, including: a device main body, the device body includes a bottom block, a top block, an installation groove and a movable blind hole, a slide valve is arranged between the bottom block and the top block, a threaded column is threadedly connected with the bottom block and extends into the inside of the bottom block, a movable block is arranged inside the movable blind hole and is in contact with the threaded column, and includes a communication hole, a return spring is arranged between the movable block and the bottom block, an outer part of a filter plate is provided with a sealing ring and is arranged inside the installation groove.

[0006] On the basis of the above technical solution, the utility model can be further improved as follows.

[0007] Further, the bottom block and the top block are connected to each other by screws, and both opposite sides of the bottom block and the top block are provided with two installation grooves.

[0008] Further, both opposite sides of the bottom block and the top block are provided with air blowing holes, feed holes, connection holes and movable blind holes. The feed holes, connection holes and movable blind holes are all communicated with the installation groove, and the air blowing holes are communicated with the movable blind holes.

[0009] Further, on the side of the top block close to the bottom block, a prismatic hole and a threaded hole are arranged in sequence from bottom to top. The prismatic hole and the threaded hole are both communicated with the movable blind hole, and the threaded hole is adapted to the threaded column.

[0010] Further, on the side of the bottom block close to the bottom block, a limiting blind hole is arranged. The limiting blind hole is communicated with the movable blind hole, and the inner diameter of the limiting blind hole is smaller than the inner diameter of the movable blind hole.

[0011] Further, the slide valve includes a valve body. A feed port is provided on one side of the valve body, and a first connection port and a second connection port are provided on the other side of the valve body.

[0012] Further, the first connection port and the second connection port are respectively arranged inside the connection hole and are respectively communicated with the installation groove.

[0013] Further, the movable block includes a cylindrical piston. A communication hole is provided on the outer surface of the cylindrical piston. A rhombic column is provided at the top of the cylindrical piston. The cylindrical piston is arranged inside the movable blind hole, and the rhombic column extends into the prism-shaped hole. The communication hole is communicated with the air blowing hole.

[0014] Further, the filter plate includes an annular plate, and a filter screen is arranged inside the annular plate.

[0015] Further, an annular groove is provided on the outer ring of the annular plate, and a sealing ring is arranged inside the annular groove.

[0016] Compared with the prior art, the technical solution of the present application has at least the following beneficial technical effects:

[0017] (1), by providing components such as a slide valve and a device body, through the cooperation between the slide valve and the device body, the suction tank can be communicated with two installation grooves through the slide valve, that is, the slide valve can only be communicated with a single installation groove at the same time, thereby realizing the effect of changing the path. When the suction head is blocked during the suction process of blood and bone slag, the path can be changed, and another suction head can be used for cleaning.

[0018] (2), by providing the air blowing hole, after the device body is connected to the fan, the effect of blowing air into the installation groove is realized. The blowing direction is opposite to the direction in which blood and bone slag are sucked, thereby realizing the effect of blowing out bone slag and blood, that is, dredging the path for sucking blood and bone slag, and through the cooperation between the threaded column, the movable block and the return spring, the effect of blocking or opening the air blowing hole is realized. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a schematic structural diagram of a negative pressure connection conversion device provided by an embodiment of the present utility model;

[0020] Figure 2 is Figure 1 a schematic structural diagram of another perspective;

[0021] Figure 3 is Figure 2 an exploded structural diagram;

[0022] Figure 4 is a schematic structural diagram of the bottom block in an embodiment of the present utility model;

[0023] Figure 5 Schematic diagram of the structure of the top block in the embodiment of the present utility model;

[0024] Figure 6 Schematic diagram of the structure of the slide valve in the embodiment of the present utility model;

[0025] Figure 7 Schematic diagram of the structure of the movable block in the embodiment of the present utility model;

[0026] Figure 8 Schematic diagram of the structure of the filter plate in the embodiment of the present utility model; and

[0027] Figure 9 Schematic diagram of the use state of the conversion device in the embodiment of the present utility model;

[0028] Explanation of reference numerals:

[0029] 1. Equipment main body; 11. Bottom block; 12. Top block; 13. Installation groove; 14. Air blowing hole; 15. Feed hole; 16. Connection hole; 17. Movable blind hole; 18. Prismatic hole; 19. Threaded hole; 20. Limiting blind hole; 2. Slide valve; 21. Valve main body; 22. Feed port; 23. First connection port; 24. Second connection port; 3. Threaded column; 4. Movable block; 41. Cylindrical piston; 42. Communication hole; 43. Rhombic column; 5. Return spring; 6. Filter plate; 61. Annular plate; 62. Annular groove; 63. Filter screen; 7. Sealing ring; 8. Fan; 81. First fan; 82. Second fan; 9. Suction head; 91. First suction head; 92. Second suction head; 10. Negative pressure tank. Detailed implementation manners

[0030] To facilitate the understanding of the present application, the present application will be described more comprehensively below with reference to the relevant drawings. Embodiments of the present application are shown in the drawings. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, these embodiments are provided to make the disclosure of the present application more thorough and comprehensive.

[0031] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which this application belongs. The terms used in the description of the present application herein are only for the purpose of describing specific embodiments and are not intended to limit the present application.

[0032] As used herein, the singular forms "a", "an" and "the" may also include the plural forms unless the context clearly dictates otherwise. It should also be understood that the terms "comprising", "including" or "having", etc., specify the presence of the stated features, integers, steps, operations, components, parts or combinations thereof, but do not preclude the presence or addition of one or more other features, integers, steps, operations, components, parts or combinations thereof.

[0033] Please refer to Figures 1 to 3 、 Figure 4 and Figure 5 As shown in

[0034] The device main body 1 includes a bottom block 11, a top block 12, an installation groove 13 and a movable blind hole 17.

[0035] For example, the bottom block 11 and the top block 12 are connected to each other by screws. On the opposite sides of the bottom block 11 and the top block 12, there are two installation grooves 13 each. On the opposite sides of the bottom block 11 and the top block 12, there are provided an air blowing hole 14, a feed hole 15, a connection hole 16 and a movable blind hole 17. The feed hole 15, the connection hole 16 and the movable blind hole 17 are all communicated with the installation groove 13. The air blowing hole 14 is communicated with the movable blind hole 17. On one side of the bottom block 11 close to the bottom block 11, there is provided a limiting blind hole 20. The limiting blind hole 20 is communicated with the movable blind hole 17, and the inner diameter of the limiting blind hole 20 is smaller than the inner diameter of the movable blind hole 17.

[0036] For example, on the side of the top block 12 close to the bottom block 11, there are provided a prismatic hole 18 and a threaded hole 19 in sequence from bottom to top. The prismatic hole 18 and the threaded hole 19 are both communicated with the movable blind hole 17, and the threaded hole 19 is adapted to the threaded column 3.

[0037] Based on the above, the top block 12 and the bottom block 11 are connected to each other by screws. The installation groove 13 provides a space for fluid flow and has a fixing effect on the filter plate 6. The air blowing hole 14 serves to communicate with the fan 8, so that external air can be blown into the interior of the installation groove 13. After the feed hole 15, the installation groove 13, the connection hole 16 and the slide valve 2 are communicated with each other, a negative pressure is generated inside the installation groove 13 to suck blood and bone residues from the feed hole 15. The sucked liquid flows through the installation groove 13, the connection hole 16 and the slide valve 2 and then flows into the negative pressure tank.

[0038] Such as Figure 1 、 Figure 2 and Figure 6As shown, the sliding valve 2 is arranged between the bottom block 11 and the top block 12, and the sliding valve 2 includes a valve body 21, a feed port 22 is arranged on one side of the valve body 21, and a first connecting port 23 and a second connecting port 24 are arranged on the other side of the valve body 21. The first connecting port 23 and the second connecting port 24 are respectively arranged inside the connecting hole 16, and are respectively communicated with the mounting groove 13.

[0039] Based on the above, the slide valve 2 is connected to the mounting grooves 13 on both sides through the first connection port 23 and the second connection port 24, respectively. The slide valve 2 can be a two-position three-way slide valve. That is, the feed port 22 can be connected to the first connection port 23, and the second connection port 24 is in a closed state. Or, the feed port 22 is connected to the second connection port 24, and the first connection port 23 is in a closed state.

[0040] like Figures 1 - 3 and Figure 7 As shown, the threaded column 3 is threadedly connected to the bottom block 11 and extends to the inside of the bottom block 11.

[0041] The movable block 4 is arranged inside the movable blind hole 17, contacts the threaded column 3, and includes a connecting hole 42. The movable block 4 also includes a cylindrical piston 41, the outer surface of which is provided with a connecting hole 42, and the top of the cylindrical piston 41 is provided with a prismatic column 43, the cylindrical piston 41 is arranged inside the movable blind hole 17, the prismatic column 43 extends to the inside of the prismatic hole 18, and the connecting hole 42 is connected to the blowing hole 14.

[0042] The return spring 5 is arranged between the movable block 4 and the bottom block 11 .

[0043] Based on the above, the movable block 4 is arranged inside the movable blind hole 17, and the prismatic column 43 is restricted by the prismatic hole 18, so that the movable block 4 cannot rotate, that is, it can only move vertically. When the threaded column 3 is tightened, it pushes the movable block 4 to move downward. At this time, the reset spring 5 is compressed and the connecting hole 42 is offset from the blowing hole 14. When the movable block 4 moves to the bottom of the movable blind hole 17, the connecting hole 42 and the blowing hole 14 are completely offset, that is, the effect of closing the blowing hole 14 is achieved. When the connecting hole 42 is twisted in the opposite direction, the movable block 4 is reset under the action of the upward elastic force of the reset spring 5.

[0044] like Figure 2 , Figure 3 and Figure 8 As shown, the filter plate 6 is provided with a sealing ring 7 on its outside and is arranged inside the mounting groove 13. The filter plate 6 includes an annular plate 61, a filter screen 63 is arranged inside the annular plate 61, an annular groove 62 is arranged on the outer ring of the annular plate 61, and a sealing ring 7 is arranged inside the annular groove 62.

[0045] Based on the above, the filter plate 6 plays a role in filtering the fluid, so that the bone residues in the blood are filtered out. After the sealing ring 7 is arranged inside the annular groove 62, the filter plate 6 has good sealing performance after being installed inside the installation groove 13.

[0046] During the actual use of this embodiment, the threaded column 3 is tightened, so that the movable block 4 is at the bottommost end under the push of the threaded column 3, that is, the communication hole 42 and the air blowing hole 14 are completely staggered.

[0047] As Figure 9 shown, the negative pressure tank 10 is communicated with the feed port 22 of the slide valve 2, and the feed hole 15 and the suction head 9 are connected through a hose, that is, the first path of the slide valve 2, the equipment main body 1 and the first suction head 91 in Figure 9 is formed. When sucking blood and bone residues through this path, the blood and bone residues enter the inside of the installation groove 13 from the feed hole 15 and are filtered by the filter plate 6. The bone residues stay inside the installation groove 13, while the blood continues to flow along the installation groove 13, the connection hole 16, the first connection port 23, the slide valve 2 and then into the negative pressure tank 10 for collection. When the filter plate 6 of this path is blocked due to excessive bone residues, the second path is used.

[0048] For example, by adjusting the slide valve 2, the second path composed of the negative pressure tank 10, the slide valve 2, the equipment main body 1 and the second suction head 92 works, that is, the blood and bone residues are extracted. During this process, the threaded column 3 at the first path is reversely screwed, so that the movable block 4 is reset under the upward elastic force of the return spring 5, that is, the communication hole 42 and the air blowing hole 14 at this place are communicated with each other. After being communicated with the first fan 81 through a pipeline, the first fan 81 is powered on to work. At this time, the first fan 81 blows air into the inside of the air blowing hole 14, and the air flow flows through the communication hole 42 and the air blowing hole 14 and then enters the inside of the installation groove 13. Since the slide valve 2 is not the same as the first path at this time, the air flow can only blow towards the filter plate 6, and the bone residues on the surface of the filter plate 6 are discharged from the first suction head 91 under the drive of the air flow.

[0049] When the second path is blocked, the above operations are repeated. By setting the slide valve 2, the start and stop of the first path and the second path are controlled. Through the two set paths, when cleaning the blood and bone residues, it is possible to quickly switch to another path in time when one path is blocked. The switching process is simple and fast, and does not affect the normal progress of the operation. And through the settings of the threaded column 3, the movable block 4 and the return spring 5, the device can be used in communication with the fan 8. When one path is working, the other path can be cleaned and dredged, so that when the working path is blocked, another path can be switched to and used in time, that is, the recycling is realized, and thus the normal progress of the operation is ensured. Compared with manual cleaning, it is not only more efficient but also takes less time.

[0050] It should be noted that the spool valve 2 is a mature prior art in the art, so the internal structure and principle thereof will not be described in detail in the present invention.

[0051] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A negative pressure connection conversion device, characterized in that Comprising: A device main body (1), which includes a bottom block (11), a top block (12), a mounting groove (13), and a movable blind hole (17); A slide valve (2), which is arranged between the bottom block (11) and the top block (12); A threaded column (3), which is threadedly connected to the bottom block (11) and extends into the interior of the bottom block (11); A movable block (4), which is arranged inside the movable blind hole (17), is in contact with the threaded column (3), and includes a communication hole (42); A return spring (5), which is arranged between the movable block (4) and the bottom block (11); A filter plate (6), which is externally provided with a sealing ring (7) and is arranged inside the mounting groove (13).

2. The negative pressure connection conversion device according to claim 1, characterized in that The bottom block (11) and the top block (12) are connected to each other by screws. Both opposite sides of the bottom block (11) and the top block (12) are provided with two mounting grooves (13).

3. The negative pressure connection conversion device according to claim 2, wherein Both opposite sides of the bottom block (11) and the top block (12) are provided with air blowing holes (14), feed holes (15), connection holes (16), and movable blind holes (17). The feed holes (15), connection holes (16), and movable blind holes (17) are all communicated with the mounting groove (13), and the air blowing holes (14) are communicated with the movable blind holes (17).

4. The negative pressure connection conversion device according to claim 3, characterized in that, On the side of the top block (12) close to the bottom block (11), a prismatic hole (18) and a threaded hole (19) are arranged in sequence from bottom to top. The prismatic hole (18) and the threaded hole (19) are both communicated with the movable blind hole (17), and the threaded hole (19) is adapted to the threaded column (3).

5. The negative pressure connection conversion device according to claim 4, characterized in that On the side of the bottom block (11) close to the bottom block (11), a limiting blind hole (20) is provided. The limiting blind hole (20) is communicated with the movable blind hole (17), and the inner diameter of the limiting blind hole (20) is smaller than the inner diameter of the movable blind hole (17).

6. The negative pressure connection conversion device according to claim 5, characterized in that The slide valve (2) includes a valve main body (21). On one side of the valve main body (21), a feed port (22) is provided. On the other side of the valve main body (21), a first connection port (23) and a second connection port (24) are provided.

7. The negative pressure connection conversion device according to claim 6, characterized in that, The first connection port (23) and the second connection port (24) are respectively arranged inside the connection hole (16) and are respectively communicated with the mounting groove (13).

8. The negative pressure connection conversion device according to claim 5, characterized in that, The movable block (4) includes a cylindrical piston (41). A communication hole (42) is provided on the outer surface of the cylindrical piston (41). A prismatic column (43) is provided at the top end of the cylindrical piston (41). The cylindrical piston (41) is arranged inside the movable blind hole (17), and the prismatic column (43) extends into the interior of the prismatic hole (18). The communication hole (42) is communicated with the air blowing hole (14).

9. The negative pressure connection conversion device according to claim 1, characterized in that, The filter plate (6) includes an annular plate (61). A filter screen (63) is arranged inside the annular plate (61).

10. The negative pressure connection conversion device according to claim 9, characterized in that, An annular groove (62) is provided on the outer ring of the annular plate (61). The sealing ring (7) is arranged inside the annular groove (62).

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