Negative pressure pipe tightness testing device capable of rapidly closing two ends

Abstract

The utility model discloses a negative pressure pipe tightness testing device capable of quickly closing two ends, which comprises a liquid storage tank, a feeding and discharging mechanism arranged in the middle of the bottom of the upper end of a mounting frame arranged at the upper end of the liquid storage tank, a lifting screen plate arranged at the upper end in a liquid storage cavity formed in the front side of the liquid storage tank, and placing seats symmetrically arranged on two sides of the middle of the upper end of the lifting screen plate. An electric push rod is arranged in the middle of a side plate arranged in the middle of the outer side of the placing base, and the output end of the electric push rod is connected with an elastic sealing piece. According to the negative pressure pipe sealing degree testing device capable of rapidly sealing the two ends, by arranging the feeding and discharging mechanism, automatic feeding and discharging of a negative pressure pipe are achieved, manual intervention is not needed, the feeding efficiency is greatly improved, the labor intensity is reduced, meanwhile, errors and unstable factors caused by manual operation are avoided, and the working efficiency is improved. And meanwhile, a lifting net plate, a guide self-locking sliding rail, an electric telescopic rod and a positioning seat are matched, so that the sealed negative pressure pipe can be conveniently conveyed into liquid for testing, and the practicability and the automation of use are improved.

Description

Technical Field

[0001] This utility model relates to the technical field of negative pressure tube testing, specifically a device for testing the sealing performance of a negative pressure tube that can be quickly sealed at both ends. Background Technology

[0002] A negative pressure tube is a pipe or device that utilizes the principle of negative pressure (vacuum) to achieve a specific function. It is primarily used in two major fields: medical drainage and automotive engine intake systems. In medicine, it is used to drain wound exudate and promote wound healing; in automobiles, it is used to optimize engine intake efficiency. Negative pressure tubes require excellent sealing performance to ensure that no leakage occurs during the transport of negative pressure fluids. Otherwise, it could lead to serious consequences such as medical accidents or industrial production failures. Therefore, the sealing performance of negative pressure tubes needs to be tested.

[0003] Existing testing equipment mostly requires manual operation for loading and unloading, resulting in low operating efficiency. This is especially true when testing a large number of negative pressure tubes, which is time-consuming and labor-intensive. Furthermore, manual operation makes it difficult to ensure that the tightness of the seal at both ends is consistent, which can easily lead to inaccurate test results due to incomplete sealing and make it impossible to effectively screen out negative pressure tubes with unqualified seals. To address these issues, existing equipment needs to be improved. Utility Model Content

[0004] The purpose of this invention is to provide a device for testing the sealing performance of a negative pressure tube that can be quickly sealed at both ends. This addresses the problem that existing testing devices mentioned in the background art mostly require manual operation for loading and unloading, resulting in low operating efficiency. This is especially true when testing a large number of negative pressure tubes, which is time-consuming and labor-intensive. Furthermore, manual operation makes it difficult to ensure that the tightness of the seal at both ends is consistent, which can easily lead to inaccurate test results due to incomplete sealing and make it impossible to effectively screen out negative pressure tubes that fail to meet sealing standards.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a device for testing the sealing performance of a negative pressure tube that can be quickly sealed at both ends, comprising a liquid storage tank.

[0006] The liquid storage tank is equipped with an installation frame at its upper end, and a loading and unloading mechanism is provided at the bottom center of the upper end of the installation frame. At the same time, a lifting mesh plate is provided at the upper end of the liquid storage cavity opened on the front side of the liquid storage tank. The upper two sides of the lifting mesh plate are connected to the positioning seats provided inside the side of the installation frame through symmetrically arranged electric telescopic rods. The upper two sides of the lifting mesh plate are symmetrically arranged with placement seats, and the outer center of the placement seats is provided with a side plate. An electric push rod is provided in the middle of the side plate, and the output end of the electric push rod is connected to an elastic seal.

[0007] Preferably, a placement platform is provided at the upper rear side of the liquid storage tank, and the position of the placement platform corresponds to the position of the loading and unloading mechanism.

[0008] Preferably, the loading and unloading mechanism includes a conveyor plate, an electric linear guide, an electric hydraulic cylinder, and a clamping seat. The upper two sides of the conveyor plate are connected to the mounting frame through the electric linear guide to form a movable structure. At the same time, electric hydraulic cylinders are symmetrically arranged on the conveyor plate. The output end of the electric hydraulic cylinder is connected to the clamping seat, and the clamping seat has a U-shaped structure. Meanwhile, a displacement sensor is arranged inside the lower end of the conveyor plate between the two clamping seats.

[0009] Preferably, the clamping seat has an air bladder inside, and the outside of the air bladder has a wear-resistant and anti-slip coating. The air bladder is connected to the inflation / deflation pump through a connecting tube passing through the clamping seat.

[0010] Preferably, the front and back sides of the lifting mesh plate are connected to the guide self-locking slide rails corresponding to the inside of the liquid storage tank.

[0011] Preferably, the elastic seal is a T-shaped structure, and a pressure sensor is provided inside the elastic seal.

[0012] Compared with the prior art, the beneficial effects of this utility model are: the device for testing the sealing performance of a negative pressure pipe that quickly seals both ends,

[0013] (1) This application realizes the automatic loading and unloading of negative pressure pipes without manual intervention, which greatly improves the loading efficiency, reduces labor intensity, and avoids errors and instability caused by manual operation.

[0014] (2) This application can quickly seal both ends of the negative pressure tube in a short time. Compared with manual operation, it greatly improves the sealing efficiency and thus improves the overall testing efficiency. At the same time, the elastic sealing element can fit tightly with the negative pressure tube port to ensure the reliability of the seal, thereby improving the accuracy of the test results. Attached Figure Description

[0015] Figure 1 This is a frontal cross-sectional view of the present invention.

[0016] Figure 2 This is a front view cross-sectional structural diagram of the loading and unloading mechanism of this utility model;

[0017] Figure 3 This utility model Figure 1 Enlarged structural diagram at point A in the middle;

[0018] Figure 4 This is a front view structural diagram of the present utility model.

[0019] In the diagram: 1. Liquid storage tank; 2. Mounting frame; 3. Loading and unloading mechanism; 301. Conveying plate; 302. Electric linear guide rail; 303. Electric hydraulic cylinder; 304. Clamping seat; 305. Airbag; 306. Connecting pipe; 307. Inflation and deflation pump; 4. Lifting mesh plate; 5. Guide self-locking slide rail; 6. Electric telescopic rod; 7. Positioning seat; 8. Placement seat; 9. Side plate; 10. Electric push rod; 11. Elastic seal. Detailed Implementation

[0020] 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.

[0021] Please see Figure 1-4 This utility model provides a technical solution: a device for testing the sealing performance of a negative pressure pipe that can be quickly sealed at both ends, based on... Figure 1 , Figure 2 and Figure 4 As shown, a mounting frame 2 is provided on the upper end of the liquid storage tank 1, and a loading / unloading mechanism 3 is provided in the middle of the bottom of the upper end of the mounting frame 2. A placement platform is provided on the upper rear side of the liquid storage tank 1, and the position of the placement platform corresponds to the position of the loading / unloading mechanism 3. The loading / unloading mechanism 3 includes a conveying plate 301, an electric linear guide rail 302, an electric hydraulic cylinder 303, and a clamping seat 304. The upper sides of the conveying plate 301 are connected to the mounting frame 2 through the electric linear guide rail 302 to form a moving structure. At the same time, electric hydraulic cylinders 303 are symmetrically arranged on the conveying plate 301. The output end of the electric hydraulic cylinder 303 is connected to the clamping seat 304, and the clamping seat 304 has a U-shaped structure. At the same time, a displacement sensor is provided inside the lower end of the conveying plate 301 between the two clamping seats 304. The displacement sensor facilitates the measurement of the distance the conveying plate 301 moves. Monitoring ensures high accuracy of the loading and unloading mechanism 3 during operation, enhancing its intelligence. An air bladder 305 is installed inside the clamping seat 304, with a wear-resistant and anti-slip coating on its outer side. The air bladder 305 is connected to the inflation / deflation pump 307 via a connecting pipe 306 passing through the clamping seat 304. An electric hydraulic cylinder 303 pushes the clamping seat 304 downwards, positioning it outside the negative pressure pipe. The inflation / deflation pump 307 then delivers air through the connecting pipe 306 to the air bladder 305, causing it to inflate and adhere to the outside of the negative pressure pipe. The electric hydraulic cylinder 303 then pulls the clamping seat 304 upwards, moving the negative pressure pipe upwards. Finally, an electric linear guide 302 moves the conveyor plate 301 to load and unload materials from the negative pressure pipe, improving its practicality.

[0022] according to Figure 1 , Figure 3 and Figure 4 As shown, a lifting screen plate 4 is installed at the upper end of the liquid storage cavity opened on the front side of the liquid storage tank 1. The front and back sides of the lifting screen plate 4 are connected to the corresponding guide self-locking slide rails 5 inside the liquid storage tank 1. The guide self-locking slide rails 5 ensure high stability when the lifting screen plate 4 moves up and down inside the liquid storage cavity. The upper sides of the lifting screen plate 4 are connected to the corresponding positioning seats 7 inside the side of the mounting frame 2 via symmetrically arranged electric telescopic rods 6. The electric telescopic rods 6 facilitate the lifting and lowering of the lifting screen plate 4, so that during the test, the lifting screen plate 4 is located inside the liquid storage cavity, and the negative pressure pipe is located inside the liquid for sealing testing. The upper middle sides of the lifting screen plate 4 are symmetrically arranged with placement... The base 8 facilitates the positioning of the negative pressure pipe on the lifting mesh plate 4, preventing positional deviation during testing. A side plate 9 is located in the middle of the outer side of the base 8, with an electric push rod 10 positioned in the middle of the side plate 9. The output end of the electric push rod 10 is connected to an elastic seal 11, which has a T-shaped structure and contains a pressure sensor. The electric push rod 10 pushes the elastic seal 11 to tightly seal it against the negative pressure pipe port, achieving rapid closure at both ends. The pressure sensor then detects the pressure inside the elastic seal 11 and the negative pressure pipe, ensuring the sealing of the connection between the elastic seal 11 and the negative pressure pipe port.

[0023] The terms “center,” “longitudinal,” “lateral,” “front,” “rear,” “left,” “right,” “vertical,” “horizontal,” “top,” “bottom,” “inner,” and “outer,” etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are merely simplified descriptions for the convenience of describing this utility model and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the scope of protection of this utility model.

[0024] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A device for testing the sealing performance of a negative pressure pipe that can be quickly sealed at both ends, comprising a liquid storage tank (1), characterized in that: The liquid storage tank (1) is provided with an installation frame (2) at the upper end, and the installation frame (2) is provided with a loading and unloading mechanism (3) at the bottom middle of the upper end. At the same time, the liquid storage cavity opened on the front side of the liquid storage tank (1) is provided with a lifting mesh plate (4) at the upper end. The upper two sides of the lifting mesh plate (4) are connected to the positioning seats (7) correspondingly provided inside the side of the installation frame (2) through symmetrically arranged electric telescopic rods (6). The upper middle of the lifting mesh plate (4) is provided with symmetrically arranged placement seats (8). At the same time, the outer middle of the placement seat (8) is provided with a side plate (9). The middle of the side plate (9) is provided with an electric push rod (10), and the output end of the electric push rod (10) is connected to an elastic sealing element (11).

2. The device for testing the sealing performance of a negative pressure pipe with rapid closure at both ends as described in claim 1, characterized in that: The liquid storage tank (1) is provided with a placement platform at the upper rear side, and the position of the placement platform corresponds to the position of the loading and unloading mechanism (3).

3. The device for testing the sealing performance of a negative pressure pipe that quickly seals both ends as described in claim 1, characterized in that: The loading and unloading mechanism (3) includes a conveyor plate (301), an electric linear guide rail (302), an electric hydraulic cylinder (303), and a clamping seat (304). The upper two sides of the conveyor plate (301) are connected to the mounting frame (2) through the electric linear guide rail (302) to form a moving structure. At the same time, electric hydraulic cylinders (303) are symmetrically arranged on the conveyor plate (301). The output end of the electric hydraulic cylinder (303) is connected to the clamping seat (304), and the clamping seat (304) is a U-shaped structure. Meanwhile, a displacement sensor is arranged inside the lower end of the conveyor plate (301) between the two clamping seats (304).

4. The device for testing the sealing performance of a negative pressure pipe with rapid closure at both ends as described in claim 3, characterized in that: The clamping seat (304) is provided with an airbag (305) inside, and the airbag (305) is provided with a wear-resistant and anti-slip coating on the outside. At the same time, the airbag (305) is connected to the inflation and deflation pump (307) through the clamping seat (304) via a connecting pipe (306).

5. The device for testing the sealing performance of a negative pressure pipe with rapid closure at both ends as described in claim 1, characterized in that: The lifting mesh plate (4) is connected to the guide self-locking slide rail (5) correspondingly set inside the liquid storage tank (1) on both the front and back sides.

6. The device for testing the sealing performance of a negative pressure pipe with rapid closure at both ends as described in claim 1, characterized in that: The elastic seal (11) has a T-shaped structure, and a pressure sensor is installed inside the elastic seal (11).

Images