Anti-clogging negative pressure suction device

Abstract

The utility model discloses a kind of anti-clogging negative pressure suction devices, it is related to negative pressure suction technical field, the anti-clogging negative pressure suction device includes negative pressure suction machine, the inside of negative pressure suction machine is equipped with air inlet pipe, and one end of air inlet pipe extends to the outside of negative pressure suction machine, while valve and airflow filter are successively installed to negative pressure suction machine;Another end of airflow filter is fixedly connected with connecting hose, and the inside of connecting hose is equipped with anti-clogging filter;Anti-clogging filter has connecting pipeline, main flow channel is arranged in the upper of connecting pipeline;The utility model is provided with two pipeline passages in the inside of connecting pipeline, wherein, the air inlet end of main flow channel is provided with inclined inclined guide filter screen, when main flow channel is blocked, airflow will flow through another channel, and will drive blockage to move to detachable collection cylinder in another channel, so as to ensure the through of any one channel in two channels, to prevent blocking when using in turn.

Description

Technical Field

[0001] This utility model specifically relates to the field of negative pressure suction technology, and more specifically to a negative pressure suction device for preventing blockage. Background Technology

[0002] A negative pressure suction device is a device that creates a local negative pressure environment by actively extracting gas, thereby enabling the adsorption, transport, and collection of fluids (gas, liquid) or solid particles. Negative pressure suction devices are widely used in many fields such as industry, medicine, and environmental protection. Its core function is to create a negative pressure environment to extract, collect, and transport gas, liquid, or solid particles. The core purpose of medical negative pressure suction devices is to remove sputum, blood, vomit, surgical waste fluids, etc. from patients' bodies, or to drain wounds (such as chest drainage), to avoid contamination of body fluids and maintain a clean surgical / treatment environment.

[0003] However, during use, since the media used in medical negative pressure suction are mostly blood, sputum, tissue fragments, pus, etc., these substances are prone to blockage when flowing in the tube due to "coagulation, viscosity, and the presence of solid particles". When used on patients who are comatose, have respiratory failure, or have lung infections, the suction device needs to clear sputum and vomit from the airway in a timely manner to maintain airway patency. If the tube is blocked, foreign objects cannot be expelled, which will quickly lead to airway narrowing or even complete blockage. The patient will experience hypoxia and cyanosis, and may suffocate and die within minutes. Utility Model Content

[0004] The purpose of this invention is to provide a negative pressure suction device to prevent blockage. Two pipe passages are provided inside the connecting pipe. The main air inlet of the main passage is equipped with an inclined guide filter. When the main air passage becomes blocked, the airflow will flow through the other passage, and will move the blockage towards a detachable collection cylinder in the other passage, thus ensuring the continuity of either passage and preventing blockage during use. This solves the technical problems mentioned in the background section.

[0005] To achieve the above objectives, this utility model provides the following technical solution: A clog-resistant negative pressure suction device includes a negative pressure adsorption machine, an air inlet pipe installed inside the negative pressure adsorption machine, and one end of the air inlet pipe extending to the outside of the negative pressure adsorption machine. Meanwhile, a valve and an airflow filter are installed sequentially on the negative pressure adsorption machine. The other end of the airflow filter is fixedly connected to a connecting hose, and an anti-clogging filter is installed on the inside of the connecting hose.

[0006] As a further technical solution of this utility model, the anti-clogging filter has a connecting pipe, a main channel is opened at the top of the connecting pipe, and a detachable collection cylinder is snapped into the bottom of the main channel. The end of the main channel away from the negative pressure adsorption machine is also provided with an inclined guide filter screen.

[0007] As a further technical solution of this utility model, the two ends of the connecting pipe are respectively fixedly connected with an air outlet connecting cover and an air inlet connecting cover, wherein the inclined guide filter screen is fixedly connected to the inner side of the air inlet connecting cover, and the bottom of the air inlet connecting cover extends to the side of the air inlet connecting cover.

[0008] As a further technical solution of this utility model, the ends of the air outlet connecting cover and the air inlet connecting cover away from the connecting pipe are respectively fixedly connected to the connecting hose, wherein the other end of the connecting hose connected to the air outlet connecting cover is fixedly connected to the airflow filter.

[0009] As a further technical solution of this utility model, the bottom of the connecting pipe is integrally provided with a symmetrical arc-shaped locking plate, and the detachable collection cylinder is snapped into the bottom of the connecting pipe through the connecting pipe, and the two ends of the connecting pipe are respectively connected to the inner side of the air outlet connecting cover and the air inlet connecting cover.

[0010] As a further technical solution of this utility model, the inclined guide filter screen is located above the end of the detachable collection cylinder near the air inlet connection cover, while the end of the detachable collection cylinder away from the inclined guide filter screen is fixedly connected to a separation filter screen.

[0011] Compared with the prior art, the beneficial effects of this utility model are: This utility model provides two channels, a main channel and a detachable collection cylinder, on the inner side of the connecting pipe. The air inlet end of the main channel is equipped with an inclined guide filter to prevent blockages from entering the inner side of the main channel. Even if the inclined guide filter becomes blocked, the airflow can still pass through the detachable collection cylinder. Furthermore, as the airflow passes through the detachable collection cylinder, it will also move the blockages downwards, allowing them to enter the inner side of the detachable collection cylinder for collection, thereby preventing the main channel from becoming blocked for a long time. In this invention, the bottom of the connecting pipe is fitted with a semi-circular elastic buckle, allowing the detachable collection cylinder to be installed at the bottom of the connecting pipe. This enables the two ends of the detachable collection cylinder to connect to the inner sides of the air outlet and air inlet connecting covers, respectively. An inclined guide filter screen is installed above one end of the detachable collection cylinder to guide blockages, while a separation filter screen is installed at the other end to intercept blockages, further ensuring the flow of the main channel. Furthermore, the detachable collection cylinder can be removed from the bottom of the connecting pipe to clean blockages. In this invention, an exhaust connection cover and an inlet connection cover are installed at both ends of the connecting pipe, and a baffle is provided at the end of the exhaust connection cover and the inlet connection cover near the connecting pipe to separate the two airflow channels. The exhaust connection cover and the inlet connection cover bring the two airflow channels together, further preventing blockage that would prevent the airflow from flowing normally. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model in use.

[0013] Figure 2 This utility model Figure 1 A magnified view of a portion of the image.

[0014] Figure 3 This is a top view of the anti-clogging filter in this utility model.

[0015] Figure 4 This utility model Figure 3 BB cross-sectional view.

[0016] Figure 5 This is a schematic diagram showing the disassembled structure of the anti-clogging filter in this utility model.

[0017] Figure 6 This utility model Figure 5 Another perspective view.

[0018] Figure 7 This utility model Figure 6 A magnified view of a portion of the image.

[0019] Figure 8 This utility model Figure 6 A magnified view of a portion of the image.

[0020] In the picture: 1-Negative pressure adsorption machine, 2-Pressure gauge, 3-Inlet pipe, 4-Valve, 5-Airflow filter, 6-Connecting hose, 7-Anti-clogging filter, 71-Connecting pipe, 72-Outlet connection cover, 73-Inlet connection cover, 74-Removable collection cylinder, 75-Inclined guide filter screen, 76-Separation filter screen, 77-Main channel. 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 1-8 This utility model provides a negative pressure suction device for preventing blockage, including a negative pressure adsorption machine 1. An air inlet pipe 3 is installed on the inner side of the negative pressure adsorption machine 1, and one end of the air inlet pipe 3 extends to the outer side of the negative pressure adsorption machine 1. At the same time, a valve 4 and an airflow filter 5 are installed in sequence on the negative pressure adsorption machine 1. The other end of the airflow filter 5 is fixedly connected to a connecting hose 6, and an anti-clogging filter 7 is installed on the inside of the connecting hose 6; The anti-clogging filter 7 has a connecting pipe 71, a main channel 77 is provided above the connecting pipe 71, and a detachable collection cylinder 74 is snapped into the bottom of the main channel 77. The end of the main channel 77 away from the negative pressure adsorption machine 1 is also provided with an inclined guide filter screen 75.

[0023] By adopting the above technical solution, two channels, a main channel 77 and a detachable collection cylinder 74, are respectively set on the inner side of the connecting pipe 71. Furthermore, an inclined guide filter 75 is provided at the air inlet end of the main channel 77 to prevent blockages from entering the inner side of the main channel 77. Even if the inclined guide filter 75 becomes blocked, the airflow can still pass through the detachable collection cylinder 74. In addition, the airflow will also carry the blockages downward during the process of passing through the detachable collection cylinder 74, so that the blockages enter the inner side of the detachable collection cylinder 74 and are collected, thereby preventing the main channel 77 from being blocked for a long time.

[0024] Furthermore, an air outlet connecting cover 72 and an air inlet connecting cover 73 are fixedly connected to both ends of the connecting pipe 71, wherein an inclined guide filter screen 75 is fixedly connected to the inner side of the air inlet connecting cover 73, and the bottom of the air inlet connecting cover 73 extends to the side of the air inlet connecting cover 73.

[0025] More specifically, the ends of the air outlet connecting cover 72 and the air inlet connecting cover 73 that are away from the connecting pipe 71 are respectively fixedly connected to the connecting hose 6, wherein the other end of the connecting hose 6 connected to the air outlet connecting cover 72 is fixedly connected to the airflow filter 5.

[0026] By adopting the above technical solution, the bottom of the connecting pipe 71 is equipped with a semi-circular elastic buckle, thereby installing the detachable collection cylinder 74 to the bottom of the connecting pipe 71. This allows the two ends of the detachable collection cylinder 74 to communicate with the inner sides of the air outlet connecting cover 72 and the air inlet connecting cover 73, respectively. An inclined guide filter screen 7 is installed above one end of the detachable collection cylinder 74 to guide the blockage, while a separation filter screen 76 is installed at the other end of the detachable collection cylinder 74 to intercept the blockage, further ensuring the flow of the main channel 77. Moreover, the detachable collection cylinder 74 can be removed from the bottom of the connecting pipe 71 to clean the blockage.

[0027] Furthermore, the bottom of the connecting pipe 71 is integrally provided with a symmetrical arc-shaped locking plate, and the detachable collection cylinder 74 is snapped into the bottom of the connecting pipe 71 through the connecting pipe 71, and the two ends of the connecting pipe 71 are respectively connected to the inner side of the air outlet connecting cover 72 and the air inlet connecting cover 73.

[0028] Furthermore, the inclined guide filter 75 is located above the end of the detachable collection cylinder 74 near the air intake connection cover 73, and a separation filter 76 is fixedly connected to the end of the detachable collection cylinder 74 away from the inclined guide filter 75.

[0029] By adopting the above technical solution, an exhaust connection cover 72 and an intake connection cover 73 are installed at both ends of the connecting pipe 71, and a baffle is provided at the end of the exhaust connection cover 72 and the intake connection cover 73 near the connecting pipe 71 to separate the two airflow channels. The exhaust connection cover 72 and the intake connection cover 73 are used to merge the two airflow channels, further preventing blockage that would prevent the airflow from flowing normally.

[0030] Furthermore, the airflow filter 5 is fixedly connected to the negative pressure adsorption machine 1 by bolts, and the two ends of the airflow filter 5 are respectively connected by valves 4 and connecting hoses 6. The airflow passes backward through the airflow filter 5 and valves 4 and then enters the inner side of the negative pressure adsorption machine 1 through the air inlet pipe 3.

[0031] Furthermore, a pressure gauge 2 is embedded in the side of the negative pressure adsorption machine 1, and the pressure gauge 2 is connected to the inside of the air inlet pipe 3. The pressure inside the air inlet pipe 3 is detected by the pressure gauge 2, which facilitates precise control of the negative pressure.

[0032] More specifically, both the exhaust connection cover 72 and the intake connection cover 73 have connecting holes at the ends near the connecting pipe 71. The upper connecting hole connects to both ends of the main channel 77, and the lower connecting hole connects to both ends of the detachable collection cylinder 74.

[0033] The working principle of this utility model is as follows: In use, firstly, the anti-clogging filter 7 is installed between the two connecting hoses 6. Then, the valve 4 is opened, and external airflow is introduced into the inner side of the air inlet connecting cover 73 through negative pressure. The airflow passes through the inclined guide filter 75 and enters the main flow channel 77. At this time, the viscous substances mixed in the airflow will be intercepted by the inclined guide filter 75. When the viscous substances completely block the inclined guide filter 75, the airflow will pass through the lower inner side of the air inlet connecting cover 73 and enter the inner side of the detachable collection cylinder 74. The airflow passes through the separation filter 76 at the other end of the detachable collection cylinder 74 and enters the air outlet connecting cover 72. The airflow is introduced into the negative pressure adsorption machine 1 through the air outlet connecting cover 72. The inclined guide filter 7 installed above one end of the detachable collection cylinder 74 can also guide the blockage, while the separation filter 76 installed at the other end of the detachable collection cylinder 74 intercepts the blockage, further ensuring the flow of the main flow channel 77. The structure is simple, the operation is very convenient, and it effectively reduces the intensity of manual labor.

[0034] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0035] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A negative pressure suction device for preventing blockage, characterized in that: Includes a negative pressure adsorption machine (1), an air inlet pipe (3) is installed on the inner side of the negative pressure adsorption machine (1), and one end of the air inlet pipe (3) extends to the outer side of the negative pressure adsorption machine (1). At the same time, a valve (4) and an airflow filter (5) are installed in sequence on the negative pressure adsorption machine (1). The other end of the airflow filter (5) is fixedly connected to a connecting hose (6), and an anti-clogging filter (7) is installed on the inside of the connecting hose (6). The anti-clogging filter (7) has a connecting pipe (71), and a main channel (77) is provided above the connecting pipe (71). A detachable collection cylinder (74) is snapped into the bottom of the main channel (77). An inclined guide filter screen (75) is also provided at the end of the main channel (77) away from the negative pressure adsorption machine (1).

2. The anti-clogging negative pressure suction device according to claim 1, characterized in that: The two ends of the connecting pipe (71) are respectively fixedly connected to an air outlet connecting cover (72) and an air inlet connecting cover (73). The inclined guide filter screen (75) is fixedly connected to the inside of the air inlet connecting cover (73), and the bottom of the air inlet connecting cover (73) extends to the side of the air inlet connecting cover (73).

3. The anti-clogging negative pressure suction device according to claim 2, characterized in that: The ends of the air outlet connection cover (72) and the air inlet connection cover (73) away from the connection pipe (71) are respectively fixedly connected to the connection hose (6), wherein the other end of the connection hose (6) connected to the air outlet connection cover (72) is fixedly connected to the airflow filter (5).

4. The anti-clogging negative pressure suction device according to claim 3, characterized in that: The bottom of the connecting pipe (71) is integrally provided with a symmetrical arc-shaped locking plate, and the detachable collection cylinder (74) is snapped into the bottom of the connecting pipe (71) through the connecting pipe (71), and the two ends of the connecting pipe (71) are respectively connected to the inner side of the air outlet connecting cover (72) and the air inlet connecting cover (73).

5. The anti-clogging negative pressure suction device according to claim 4, characterized in that: The inclined guide filter (75) is located above the end of the detachable collection cylinder (74) near the air intake connection cover (73), and a separation filter (76) is fixedly connected to the end of the detachable collection cylinder (74) away from the inclined guide filter (75).

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