Air tightness testing device for medical instrument and use method thereof

Abstract

The invention relates to the technical field of air tightness detection, and discloses an air tightness testing device for medical instruments, which comprises a main body, a support frame is fixedly connected to the top of the main body, an electric push rod I is fixedly connected to one side, far away from the main body, of the support frame, and the output end of the electric push rod I penetrates to the outer wall of the bottom of the support frame and extends to the outer side. Due to the fact that the multiple flexible balls with the springs are distributed on the surface of the pipeline, the pipeline can be subjected to relatively uniform pressure in the circumferential direction, compared with a traditional sealing mode, the mode is more comprehensive in sealing and higher in self-adaptive force, meanwhile, by controlling a second electric push rod, the second electric push rod drives a movable sleeve to move, and the sealing effect is better. In addition, the test instrument can be conveniently detached during testing, the practicability is higher, and the sealing effect is better.

Description

Technical Field

[0001] The present invention relates to the technical field of air tightness detection, and in particular to an air tightness testing device for medical equipment and a use method thereof. Background Art

[0002] Medical devices refer to instruments, equipment, appliances, in vitro diagnostic reagents and calibrators, materials and other similar or related items that are used directly or indirectly on the human body for the purpose of diagnosis, prevention, monitoring, treatment or relief of diseases; diagnosis, monitoring, treatment, relief or functional compensation of injuries, etc.

[0003] Some medical devices need to be tested for air tightness before use. Existing test devices generally use a single sealing ring to seal the connection between the pipe and the gas injection port of the test device when testing devices with connecting tubes. Since the sealing of the sealing ring itself is achieved by squeezing the sealing ring with an object, the sealing ring has poor adaptability to different pipes and is easily affected by its own flatness. After a long period of sealing, it is easy to cause slight mismatches or defects between the pipe and the fixture, resulting in local leakage during the test, affecting the sealing during the detection process and the accuracy of the results. Summary of the invention

[0004] The object of the present invention is to provide an airtightness testing device for medical equipment and a method of using the same, so as to solve the problems raised in the above-mentioned background technology.

[0005] In order to solve the above technical problems, the present invention is achieved through the following technical solutions:

[0006] The present invention is an air tightness testing device for medical equipment, comprising a main body, a support frame fixedly connected to the top of the main body, an electric push rod 1 fixedly connected to the side of the support frame away from the main body, an output end of the electric push rod 1 penetrates the bottom outer wall of the support frame and extends to the outside, and also includes;

[0007] The moving mechanism includes an electric push rod 2 fixedly connected to one side of the main body close to the support frame, the output end of the electric push rod 2 is fixedly connected to a moving sleeve, the inner wall of the moving sleeve is fixedly connected to a hollow ring, and the side wall of the hollow ring is provided with a plurality of circular holes;

[0008] The fixing mechanism includes a support plate fixedly connected to the side of the main body close to the support frame, the side wall of the support plate is fixedly connected with an inner sleeve, the inner sleeve is slidably connected to the inside of the movable sleeve, the outer surface of the inner sleeve is provided with an annular groove, the side wall of the annular groove is provided with a plurality of square grooves, the inside of the annular groove is rotatably connected with a plurality of flexible balls, the outer surfaces of the plurality of flexible balls are provided with air inlet holes, the inside of the flexible balls is fixedly connected with a spring, and the flexible balls are located inside the square grooves.

[0009] Furthermore, a square plate is fixedly connected to an extended end of the electric push rod, a sealing frame is fixedly connected to one side of the main body close to the support frame, and a placement frame is fixedly connected to one side of the main body close to the sealing frame.

[0010] Furthermore, an intermediate mechanism is arranged inside the movable sleeve, and the intermediate mechanism includes a fixed frame fixedly connected to the inner sleeve, a side wall of the fixed frame is fixedly connected to a working frame, a side of the working frame away from the fixed frame is fixedly connected to a gear sleeve, and a rotating column is rotatably connected inside the working frame.

[0011] Furthermore, one end of the rotating column away from the fixed frame penetrates through the side wall of the gear sleeve and extends to the outside. A plurality of inclined plates are fixedly connected to the outer surface of the rotating column inside the working frame. A plurality of inclined plates are fixedly connected to a gear ring on one side away from the rotating column. A plurality of air outlet holes are opened on the side of the working frame close to the gear sleeve.

[0012] Furthermore, an adsorption mechanism is arranged inside the movable sleeve, and the adsorption mechanism comprises a hollow ring 2 fixedly connected to the side of the working frame close to the gear sleeve, a plurality of suction cups are fixedly connected to the outer surface of the hollow ring 2, and a plurality of hollow tubes are fixedly connected to the side of the hollow ring 2 away from the suction cup.

[0013] Furthermore, several hollow tubes are connected to the hollow ring 2, and the side of the hollow tube close to the fixed frame penetrates the side wall of the working frame and extends to the interior. The interior of the hollow tube is rotatably connected to an intermediate rod, and the outer surface of the intermediate rod is rotatably connected to a cross, and the cross is fixedly connected to the interior of the hollow tube.

[0014] Furthermore, a plurality of inclined plates are fixedly connected to the outer surface of the middle rod inside the hollow tube, and the plurality of inclined plates and the middle rod form a central circular array. Two augers are fixedly connected to the outer surface of the middle rod, and the two augers and the inclined plate are symmetrically distributed in the center. A gear is fixedly connected to one end of the middle rod close to the fixed frame, and the outer surface of the gear is meshingly connected to the gear ring.

[0015] Furthermore, a disturbance mechanism is provided inside the movable sleeve, and the disturbance mechanism includes a plurality of shaking plates rotatably connected to the outer surface of the rotating column, a spring 2 is fixedly connected between the shaking plates and the rotating column, a swing rope is fixedly connected to the top of the shaking plates, and a gear shaft is fixedly connected to one end of the swing rope close to the rotating column, the gear shaft is rotatably connected to the side wall of the rotating column, and the surface of the gear shaft is meshingly connected to the gear sleeve.

[0016] Furthermore, a method for using a medical device airtightness testing device is provided, the method comprising the following steps:

[0017] S1: First, place the medical device to be tested on the placement frame, then place the end of the device into the sealing frame, put the front end of the device on the surface of the working frame and connect the end of the mobile sleeve with the gas injection device;

[0018] S2: Then set the gas injection time on the gas injection equipment, and then start the electric push rods 1 and 2. When the electric push rod 1 works, it will drive the bottom square plate to move downward, so that the square plate is closed on the top of the sealing frame, and then start gas injection to perform a sealing test.

[0019] The present invention has the following beneficial effects:

[0020] 1. According to the present invention, when the electric push rod 2 is working, the working electric push rod 2 will push the movable sleeve to move. When the movable sleeve moves, the hollow ring will squeeze a plurality of flexible balls. After being squeezed, the flexible balls will move down in the annular groove and fit on the surface of the test pipe. At the same time, when the gas injection starts, part of the injected gas will enter the flexible balls through the circular holes on the flexible balls, causing the flexible balls to expand. The expansion of the flexible balls will be in close contact with the pipe, which can effectively reduce the possibility of gas leakage and improve the reliability of the seal. Moreover, since a plurality of flexible balls with springs are distributed on the surface of the pipe, the pipe can be subjected to relatively uniform pressure in the circumferential direction. Compared with the traditional sealing method, the sealing of this method is more comprehensive and has a stronger adaptability. At the same time, by controlling the electric push rod 2, the electric push rod 2 drives the movable sleeve to move, and the disassembly of the test instrument can be facilitated during the test. The method is more practical and has a better sealing effect.

[0021] 2. In the present invention, when gas is injected, the flow of gas will impact the inclined plate on the gear ring through the fixed frame on the working frame. After the inclined plate is impacted, it will drive the rotating column and the gear ring to rotate. When the gear ring rotates, it will drive the gear to rotate. When the gear rotates, it will drive the auger and the middle rod to rotate. At this time, part of the injected gas will enter the hollow tube. At the same time, when the auger rotates, it will also bring part of the injected gas into the hollow tube. Through the rotation of the auger, part of the gas can be transported inside the hollow tube. At the same time, the transported gas will flow in a spiral along the spiral groove on the inner wall of the hollow tube. When the gas flows in a spiral and flows to the connection between the hollow tube and the hollow ring 2, the spiral gas When the gas flows, a pressure difference is generated at the connection between the hollow tube and the hollow ring two. At this time, the pressure difference will extract the gas in the hollow ring two. At the same time, when the middle rod drives the inclined plate to rotate, the rotating inclined plate will also extract the gas from the connection between the hollow tube and the hollow ring two. At this time, the gas in the hollow ring two is extracted in combination with the pressure difference and the rotation of the inclined plate. After the gas is extracted, a negative pressure is generated at the suction cup on the hollow ring two. The generation of negative pressure will cause the hollow ring two to generate an adsorption force on the instrument pipeline, so that the pipeline is firmly fixed to the surface of the working frame. At the same time, when the suction cup on the hollow ring two adsorbs the pipeline, it can also enhance the sealing of the pipeline during detection, thereby further enhancing the detection effect of the device.

[0022] 3. In the present invention, when the gas impacts the inclined plate and drives the rotating column to rotate, the rotation of the rotating column will drive the shaking plate and the swinging rope to rotate synchronously. When the shaking plate rotates, it will pass through the spring 2 at the bottom, so that the shaking plate will shake up and down when it rotates, and when the rotating column drives the gear shaft to rotate, the rotating gear shaft will mesh with the gear sleeve and rotate. When the gear shaft rotates, it will drive the swinging rope to rotate. When the swinging rope rotates, it will reciprocate with the expansion of the shaking plate. When the swinging rope expands and contracts, the rotating swinging rope will stir the airflow of gas injection. Since the faster airflow may temporarily cover up the tiny leakage point, or after the airflow stops, the instantaneous change of pressure may cause the leakage illusion in the original non-leaking part, resulting in the misjudgment of the airtight test result. Through the swing of the swinging rope, when the airflow is stirred, the airflow can be dispersed, thereby reducing the flow rate of the airflow during gas injection, reducing the excessively fast airflow speed to affect the accuracy during the test, resulting in an increase in the measurement error, thereby improving the test efficiency and the accuracy of the test results.

[0023] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0025] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0026] Figure 2 for Figure 3 Enlarged view of point A in the middle;

[0027] Figure 3 It is a schematic diagram of the main body of the present invention;

[0028] Figure 4 It is a schematic diagram of the explosion structure of the mobile mechanism of the present invention;

[0029] Figure 5 It is a schematic diagram of the fixing mechanism structure of the present invention;

[0030] Figure 6 It is a schematic diagram of the structure of the intermediate mechanism of the present invention;

[0031] Figure 7 It is a schematic diagram of the structure of the adsorption mechanism of the present invention;

[0032] Figure 8 It is a schematic diagram of the structure of the disturbance mechanism of the present invention;

[0033] Fig. 9 The present invention is a flow chart of the detection method.

[0034] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0035] In the figure: 1. main body; 101. support frame; 102. electric push rod 1; 103. sealing frame; 104. placement frame; 2. moving mechanism; 201. electric push rod 2; 202. moving sleeve; 203. hollow ring; 3. fixing mechanism; 301. support plate; 302. inner sleeve; 303. annular groove; 304. flexible ball; 4. intermediate mechanism; 401. fixing frame; 402. working frame; 403. gear sleeve; 404. rotating column; 405. gear ring; 5. adsorption mechanism; 501. hollow ring 2; 502. hollow tube; 503. cross; 504. intermediate rod; 505. inclined plate; 506. auger; 507. gear; 6. disturbance mechanism; 601. shaking plate; 602. gear shaft; 603. swing rope. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0037] See also Figure 1-Figure 8 As shown, the present invention is an air tightness testing device for medical devices, comprising a main body 1, a support frame 101 is fixedly connected to the top of the main body 1, an electric push rod 102 is fixedly connected to the side of the support frame 101 away from the main body 1, and the output end of the electric push rod 102 penetrates the bottom outer wall of the support frame 101 and extends to the outside, and also includes;

[0038] The moving mechanism 2 includes an electric push rod 201 fixedly connected to the side of the main body 1 close to the support frame 101, the output end of the electric push rod 201 is fixedly connected to a moving sleeve 202, the inner wall of the moving sleeve 202 is fixedly connected to a hollow ring 203, and the side wall of the hollow ring 203 is provided with a plurality of circular holes;

[0039] The fixing mechanism 3 includes a support plate 301 fixedly connected to the side of the main body 1 close to the support frame 101, the side wall of the support plate 301 is fixedly connected with an inner sleeve 302, the inner sleeve 302 is slidably connected to the inside of the movable sleeve 202, the outer surface of the inner sleeve 302 is provided with an annular groove 303, the side wall of the annular groove 303 is provided with a plurality of square grooves, the inner part of the annular groove 303 is rotatably connected with a plurality of flexible balls 304, the outer surfaces of the plurality of flexible balls 304 are provided with air inlet holes, the inside of the flexible balls 304 is fixedly connected with a spring, the flexible balls 304 are located inside the square grooves, and then the gas injection time is set on the gas injection equipment, and then the electric push rod 102 and the electric push rod 201 are started, and when the electric push rod 102 is working, it will drive the bottom square plate to move downward, so that the square plate is closed on the top of the sealing frame 103, and then the gas injection is started to perform a sealing test.

[0040] The extending end of the electric push rod 102 is fixedly connected to a square plate, and the side of the main body 1 close to the support frame 101 is fixedly connected to a sealing frame 103, and the side of the main body 1 close to the sealing frame 103 is fixedly connected to a placement frame 104. The medical device to be tested is placed on the placement frame 104, and then the end of the device is placed in the sealing frame 103, the front end of the device is put on the surface of the working frame 402 and the end of the movable sleeve 202 is connected to the gas injection device.

[0041] An intermediate mechanism 4 is provided inside the movable sleeve 202, and the intermediate mechanism 4 includes a fixed frame 401 fixedly connected to the inside of the inner sleeve 302, a working frame 402 is fixedly connected to the side wall of the fixed frame 401, a gear sleeve 403 is fixedly connected to the side of the working frame 402 away from the fixed frame 401, and a rotating column 404 is rotatably connected inside the working frame 402. When gas is injected, the flow of gas will impact the inclined plate on the gear ring 405 through the fixed frame 401 and the working frame 402, and the inclined plate will drive the rotating column 404 and the gear ring 405 to rotate after being impacted.

[0042] One end of the rotating column 404 away from the fixed frame 401 penetrates the side wall of the gear sleeve 403 and extends to the outside. A plurality of inclined plates are fixedly connected to the outer surface of the rotating column 404 inside the working frame 402. A gear ring 405 is fixedly connected to the side of the plurality of inclined plates away from the rotating column 404. A plurality of air outlets are provided on the side of the working frame 402 close to the gear sleeve 403. When the inclined plate is impacted, it drives the rotating column 404 and the gear ring 405 to rotate. When the gear ring 405 rotates, it drives the gear 507 to rotate.

[0043] The movable sleeve 202 is provided with an adsorption mechanism 5 inside, and the adsorption mechanism 5 includes a hollow ring 2 501 fixedly connected to the side of the working frame 402 close to the gear sleeve 403, and a plurality of suction cups are fixedly connected to the outer surface of the hollow ring 2 501, and a plurality of hollow tubes 502 are fixedly connected to the side of the hollow ring 2 501 away from the suction cup. When the gear 507 rotates, the auger 506 and the middle rod 504 are driven to rotate. At this time, part of the injected gas will enter the hollow tube 502. At the same time, when the auger 506 rotates, part of the injected gas will also be brought into the hollow tube 502. Part of the gas can be transported inside the hollow tube 502 by the rotation of the auger 506.

[0044] A plurality of hollow tubes 502 are connected to the hollow ring 501. The side of the hollow tube 502 close to the fixed frame 401 penetrates the side wall of the working frame 402 and extends to the inside. The inside of the hollow tube 502 is rotatably connected to an intermediate rod 504. The outer surface of the intermediate rod 504 is rotatably connected to a cross 503. The cross 503 is fixedly connected to the inside of the hollow tube 502. At the same time, the transported gas will flow in a spiral manner along the spiral groove on the inner wall of the hollow tube 502. When the gas flows in a spiral manner and flows to the connection between the hollow tube 502 and the hollow ring 501, the gas will generate a pressure difference at the connection between the hollow tube 502 and the hollow ring 501 through the flow of the spiral gas.

[0045] The outer surface of the middle rod 504 inside the hollow tube 502 is fixedly connected with a plurality of inclined plates 505, and the plurality of inclined plates 505 and the middle rod 504 form a central circumferential array. The outer surface of the middle rod 504 is fixedly connected with two augers 506, and the two augers 506 and the inclined plate 505 are symmetrically distributed in the center. A gear 507 is fixedly connected to one end of the middle rod 504 close to the fixed frame 401, and the outer surface of the gear 507 is meshed with the gear ring 405. At this time, the pressure difference is generated. The gas in the hollow ring 501 will be extracted. At the same time, when the middle rod 504 drives the inclined plate 505 to rotate, the rotating inclined plate 505 will also extract the gas from the connection between the hollow tube 502 and the hollow ring 501. At this time, combined with the pressure difference and the rotation of the inclined plate 505, the gas in the hollow ring 501 is extracted. At this time, after the gas is extracted, negative pressure will be generated at the suction cup on the hollow ring 501. The generation of negative pressure will cause the hollow ring 501 to have an adsorption force on the instrument pipeline.

[0046] The interior of the movable sleeve 202 is provided with a disturbance mechanism 6, which includes a plurality of shaking plates 601 rotatably connected to the outer surface of the rotating column 404, a spring 2 is fixedly connected between the shaking plates 601 and the rotating column 404, a swing rope 603 is fixedly connected to the top of the shaking plates 601, and a gear shaft 602 is fixedly connected to one end of the swing rope 603 close to the rotating column 404, the gear shaft 602 is rotatably connected to the side wall of the rotating column 404, and the surface of the gear shaft 602 is meshed with the gear sleeve 403. When the gas impacts the inclined plate and drives the rotating column 404 to rotate, the rotation of the rotating column 404 will drive the shaking plate 601 and the swing rope 603 to rotate synchronously, and when the shaking plate 601 rotates, it will pass through the spring 2 at the bottom, so that the shaking plate 601 will shake up and down when it rotates, and when the rotating column 404 drives the gear shaft 602 to rotate, the rotating gear shaft 602 will mesh with the gear sleeve 403 and rotate, and when the gear shaft 602 rotates, it will drive the swing rope 603 to rotate.

[0047] A method for using an airtightness testing device for medical equipment, the airtightness testing device for medical equipment comprising the following steps:

[0048] S1: First, place the medical device to be tested on the placement frame 104, then place the end of the device into the sealing frame 103, put the front end of the device on the surface of the working frame 402 and connect the end of the mobile sleeve 202 to the gas injection device;

[0049] S2: Then set the gas injection time on the gas injection equipment, and then start the electric push rod 102 and the electric push rod 201. When the electric push rod 102 works, it will drive the bottom square plate to move downward, so that the square plate is closed on the top of the sealing frame 103, and then start gas injection to perform a sealing test.

[0050] When in use, first place the medical device to be tested on the placement frame 104, then place the end of the device into the sealing frame 103, put the front end of the device on the surface of the working frame 402 and connect the end of the movable sleeve 202 to the gas injection device, then set the gas injection time on the gas injection device, then start the electric push rod 102 and the electric push rod 201. When the electric push rod 102 is working, it will drive the bottom square plate to move downward, so that the square plate is closed on the top of the sealing frame 103, and then start gas injection to perform a sealing test. When the electric push rod 201 is working, the working electric push rod 201 will push the movable sleeve 202 to move. When the movable sleeve 202 moves, it will squeeze a number of flexible balls 304 through the hollow ring 203. After being squeezed, the flexible balls 304 will be The flexible ball 304 moves down in the shaped groove 303 and fits on the surface of the test pipe. At the same time, when the gas injection starts, part of the injected gas will enter the flexible ball 304 through the circular hole on the flexible ball 304, causing the flexible ball 304 to expand. The expansion of the flexible ball 304 will be in close contact with the pipe, which can effectively reduce the possibility of gas leakage and improve the reliability of the seal. Moreover, since multiple flexible balls 304 with springs are distributed on the surface of the pipe, the pipe can be subjected to relatively uniform pressure in the circumferential direction. Compared with the traditional sealing method, this method has a more comprehensive sealing and a stronger adaptability. At the same time, by controlling the electric push rod 201, the electric push rod 201 drives the movable sleeve 202 to move, and the test equipment can be easily disassembled during the test. It is more practical and has a better sealing effect.

[0051] When gas is injected, the flow of gas will impact the inclined plate on the gear ring 405 through the fixed frame 401 and the working frame 402. After being impacted, the inclined plate will drive the rotating column 404 and the gear ring 405 to rotate. When the gear ring 405 rotates, it will drive the gear 507 to rotate. When the gear 507 rotates, it will drive the auger 506 and the intermediate rod 504 to rotate. At this time, part of the injected gas will enter the hollow tube 502. At the same time, when the auger 506 rotates, it will also bring part of the injected gas into the hollow tube 502. Through the rotation of the auger 506, part of the gas can be transported inside the hollow tube 502. At the same time, the transported gas will flow in a spiral manner along the spiral groove on the inner wall of the hollow tube 502. When the gas flows in a spiral manner and flows to the connection between the hollow tube 502 and the hollow ring 501, the gas will be transported in a spiral manner. With the flow of gas, a pressure difference is generated at the connection between the hollow tube 502 and the hollow ring 501. At this time, the pressure difference will extract the gas in the hollow ring 501. At the same time, when the middle rod 504 drives the inclined plate 505 to rotate, the rotating inclined plate 505 will also extract the gas from the connection between the hollow tube 502 and the hollow ring 501. At this time, combined with the pressure difference and the rotation of the inclined plate 505, the gas in the hollow ring 501 is extracted. At this time, after the gas is extracted, a negative pressure is generated at the suction cup on the hollow ring 501. The generation of negative pressure will cause the hollow ring 501 to generate an adsorption force on the instrument pipeline, so that the pipeline is firmly fixed to the surface of the working frame 402. At the same time, when the suction cup on the hollow ring 501 adsorbs the pipeline, it can also enhance the sealing of the pipeline during detection, further enhancing the detection effect of this device. When the gas impacts the inclined plate and drives the rotating column 404 to rotate, the rotation of the rotating column 404 will drive the shaking plate 601 and the swing rope 603 to rotate synchronously. When the shaking plate 601 rotates, it will pass through the spring 2 at the bottom, so that the shaking plate 601 will shake up and down when it rotates, and when the rotating column 404 drives the gear shaft 602 to rotate, the rotating gear shaft 602 will mesh with the gear sleeve 403 and rotate. When the gear shaft 602 rotates, it will drive the swing rope 603 to rotate. When the swing rope 603 rotates, it will expand and contract reciprocatingly with the expansion of the shaking plate 601. When the dynamic rope 603 expands and contracts, the rotating swinging rope 603 will stir the airflow of the gas injection. The faster airflow may temporarily cover up the tiny leakage points, or after the airflow stops, the instantaneous change in pressure may cause the original non-leaking parts to have an illusion of leakage, resulting in a misjudgment of the airtightness test results. Through the swinging of the swinging rope 603, when the airflow is stirred, the airflow can be dispersed, thereby reducing the flow rate of the airflow during gas injection, reducing the excessively fast airflow speed that affects the accuracy of the test and increases the measurement error, thereby improving the test efficiency and the accuracy of the test results.

[0052] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A medical device air tightness test device, comprising a main body (1), the top of the main body (1) is fixedly connected to a support frame (101), the side of the support frame (101) away from the main body (1) is fixedly connected to an electric push rod (102), the output end of the electric push rod (102) penetrates the bottom outer wall of the support frame (101) and extends to the outside, characterized in that: Also includes; A moving mechanism (2), the moving mechanism (2) comprising a second electric push rod (201) fixedly connected to a side of the main body (1) close to the support frame (101), the output end of the second electric push rod (201) being fixedly connected to a moving sleeve (202), the inner wall of the moving sleeve (202) being fixedly connected to a hollow ring (203), and the side wall of the hollow ring (203) being provided with a plurality of circular holes; A fixing mechanism (3), the fixing mechanism (3) comprising a support plate (301) fixedly connected to a side of the main body (1) close to the support frame (101), the side wall of the support plate (301) being fixedly connected to an inner sleeve (302), the inner sleeve (302) being slidably connected to the inside of the movable sleeve (202), an annular groove (303) being provided on the outer surface of the inner sleeve (302), a plurality of square grooves being provided on the side wall of the annular groove (303), a plurality of flexible balls (304) being rotatably connected to the inside of the annular groove (303), the outer surfaces of the plurality of flexible balls (304) being provided with air inlet holes, a spring being fixedly connected to the inside of the flexible ball (304), and the flexible ball (304) being located inside the square groove.

2. The airtightness testing device for medical devices according to claim 1, characterized in that: The extended end of the electric push rod 1 (102) is fixedly connected to a square plate, the side of the main body (1) close to the support frame (101) is fixedly connected to a sealing frame (103), and the side of the main body (1) close to the sealing frame (103) is fixedly connected to a placement frame (104).

3. The airtightness testing device for medical devices according to claim 2, characterized in that: An intermediate mechanism (4) is arranged inside the movable sleeve (202), and the intermediate mechanism (4) comprises a fixed frame (401) fixedly connected to the inside of the inner sleeve (302), a side wall of the fixed frame (401) is fixedly connected to a working frame (402), a side of the working frame (402) away from the fixed frame (401) is fixedly connected to a gear sleeve (403), and a rotating column (404) is rotatably connected inside the working frame (402).

4. The airtightness testing device for medical devices according to claim 3, characterized in that: One end of the rotating column (404) away from the fixed frame (401) penetrates the side wall of the gear sleeve (403) and extends to the outside. A plurality of inclined plates are fixedly connected to the outer surface of the rotating column (404) inside the working frame (402). A gear ring (405) is fixedly connected to one side of the inclined plates away from the rotating column (404). A plurality of air outlet holes are opened on one side of the working frame (402) close to the gear sleeve (403).

5. The airtightness testing device for medical devices according to claim 4, characterized in that: The movable sleeve (202) is provided with an adsorption mechanism (5) inside, and the adsorption mechanism (5) comprises a hollow ring 2 (501) fixedly connected to a side of the working frame (402) close to the gear sleeve (403), a plurality of suction cups fixedly connected to the outer surface of the hollow ring 2 (501), and a plurality of hollow tubes (502) fixedly connected to a side of the hollow ring 2 (501) away from the suction cup.

6. The airtightness testing device for medical devices according to claim 5, characterized in that: A plurality of hollow tubes (502) are connected to the hollow ring 2 (501); a side of the hollow tube (502) close to the fixed frame (401) penetrates the side wall of the working frame (402) and extends to the inside; an intermediate rod (504) is rotatably connected to the inside of the hollow tube (502); a cross (503) is rotatably connected to the outer surface of the intermediate rod (504); and the cross (503) is fixedly connected to the inside of the hollow tube (502).

7. The airtightness testing device for medical devices according to claim 6, characterized in that: The outer surface of the intermediate rod (504) located inside the hollow tube (502) is fixedly connected to a plurality of inclined plates (505), and the plurality of inclined plates (505) and the intermediate rod (504) form a central circumferential array. The outer surface of the intermediate rod (504) is fixedly connected to two augers (506), and the two augers (506) and the inclined plate (505) are centrally symmetrically distributed. A gear (507) is fixedly connected to one end of the intermediate rod (504) close to the fixed frame (401), and the outer surface of the gear (507) is meshed with the gear ring (405).

8. The airtightness testing device for medical devices according to claim 7, characterized in that: A disturbance mechanism (6) is arranged inside the movable sleeve (202), and the disturbance mechanism (6) comprises a plurality of shaking plates (601) rotatably connected to the outer surface of the rotating column (404), a spring 2 is fixedly connected between the shaking plates (601) and the rotating column (404), a swing rope (603) is fixedly connected to the top of the shaking plates (601), and a gear shaft (602) is fixedly connected to one end of the swing rope (603) close to the rotating column (404), and the gear shaft (602) is rotatably connected to the side wall of the rotating column (404), and the surface of the gear shaft (602) is meshingly connected to the gear sleeve (403).

9. A method for using a medical device airtightness testing device, characterized in that: Using the airtightness testing device for medical devices as claimed in claim 8, the method comprises the following steps: S1: First, place the medical device to be tested on the placement frame (104), then place the end of the device into the sealing frame (103), cover the front end of the device on the surface of the working frame (402), and connect the end of the movable sleeve (202) to the gas injection device; S2: Then, the gas injection time is set on the gas injection equipment, and then the electric push rod 1 (102) and the electric push rod 2 (201) are started. When the electric push rod 1 (102) is working, it will drive the bottom square plate to move downward, so that the square plate is closed on the top of the sealing frame (103), and then the gas injection is started to perform a sealing test.

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