Tubular medical instrument air tightness testing device

Abstract

The utility model relates to a testing device, in particular to an air tightness testing device for a tubular medical instrument. A tubular medical instrument airtightness testing device comprises a supporting assembly, an air guide storage assembly arranged in the supporting assembly, and an adjustable placement assembly arranged at the top of the supporting assembly. The utility model aims to provide the air tightness testing device for the tubular medical instrument, which is convenient to place, strong in applicability and more practical.

Description

TECHNICAL FIELD

[0001] The utility model relates to testing arrangement, in particular to a kind of tubular medical instrument air-tightness testing device. BACKGROUND

[0002] With the development of science and the progress of society, modern medical equipment is gradually entering our life, which greatly promotes the progress of human life. In the existing medical instruments, many medical instruments are tubular or provided with tubular parts. These tubular medical instruments are widely used in the medical field. Therefore, during the production and manufacturing of medical tubular instruments, the production quality needs to be strictly detected. Generally, during the detection of tubular medical instruments, in order to ensure the safety during application, conventional air-tightness detection needs to be performed, so as to avoid the occurrence of reverse flow, inability to push liquid medicine and other accidents during surgery.

[0003] At present, the air-tightness testing device for tubular medical instruments in the prior art can only detect tubular medical instruments of the same specification or the same inner diameter, and has low applicability. The placement device for tubular medical instruments is mostly fixedly arranged, and is not easy to place and install, which seriously affects the testing accuracy and efficiency. UTILITY MODEL CONTENT

[0004] Therefore, the utility model provides a kind of tubular medical instrument air-tightness testing device. The purpose is to provide a kind of tubular medical instrument air-tightness testing device which is convenient to place, has high applicability and is more practical.

[0005] To achieve the above-mentioned purpose, the utility model adopts the following technical solutions:

[0006] The utility model provides a kind of tubular medical instrument air tightness testing device, including support component, gas storage component being arranged in the support component and adjustable placement component being arranged in the top of the support component;The support component includes box, vertical support rod is correspondingly arranged in the top of the box in four corners, and the top of four support rods is provided with top plate corresponding to the box;The gas storage component includes multiple air inlet holes being opened through the bottom wall of the box, and the upper side of multiple air inlet holes is correspondingly provided with micro booster air pump, each micro booster air pump is communicated with gas storage tank being arranged on the inner wall of the top of the box by gas guide pipe, and filter plate is horizontally arranged in the position of the upper side of multiple gas guide pipes in the gas storage tank, micro air filter is arranged on the upper side of the middle part of the filter plate, and gas guide ring plate is fixedly arranged between the micro air filter and the top of the gas storage tank;The adjustable placement component includes placement groove body being slidably connected with the two limiting guide grooves of the top of the gas storage tank by two sliding blocks, and lower placement cavity is fixedly arranged in the placement groove body;Upper placement cavity is arranged in the lower side of the top plate by first electric push rod corresponding to the lower placement cavity, two rubber end caps are symmetrically arranged on the inner wall of the lower placement cavity from front to back, the rubber end cap located in front side is fixedly connected with the front side inner wall of the lower placement cavity by fixed block, the rubber end cap located in rear side is connected with the rear side inner wall of the lower placement cavity by second electric push rod, and horizontal bar is horizontally arranged in the central part of the rubber end cap located in rear side, gas flow sensor is fixedly arranged on the front end of the horizontal bar, multiple micro air cylinders are correspondingly arranged on the bottom inner wall of the lower placement cavity and the top inner wall of the upper placement cavity, arc-shaped block is arranged on the moving end of multiple micro air cylinders, pressure sensor is arranged on the top inner wall of the upper placement cavity, multiple first air holes are arranged through the bottom wall of the lower placement cavity, multiple second air holes are arranged through the bottom wall of the placement groove body corresponding to multiple first air holes, and multiple third air holes are arranged through the top wall of the gas storage tank corresponding to multiple second air holes.

[0007] Preferably, it also includes cleaning component, vertical guide rod is correspondingly arranged on the bottom of two sliding blocks, horizontal guide rod is rotatably arranged through the bottom of two vertical guide rods, brush is arranged on the periphery of the horizontal guide rod corresponding to the filter plate, both ends of the horizontal guide rod are arranged in the sliding guide groove on the gas storage tank, gear is fixedly connected on both ends of the horizontal guide rod, upper rack is arranged on the top wall of the sliding guide groove corresponding to the gear, and lower rack is arranged on the bottom wall of the sliding guide groove corresponding to the gear.

[0008] Preferably, the front side of the box is adjacent to a display and a keyboard, the bottom inner wall of the box is provided with a controller, and the display, the keyboard, the micro supercharged air pump, the micro air filter, the first electric push rod, the second electric push rod, the gas flow sensor, the pressure sensor and the micro air cylinder are electrically connected with the controller respectively.

[0009] Preferably, the rear side of the placing groove body is fixedly provided with a connecting plate, the rear end of the connecting plate is rotationally connected with the front end of a pressing plate, and the tail end of the pressing plate is fixedly connected with a magnetic strip on the rear side of the top plate.

[0010] Preferably, the four ends of the bottom of the box are correspondingly provided with supporting legs.

[0011] Preferably, the front side of the placing groove body is correspondingly provided with a handle.

[0012] Preferably, the rubber end cover is a one-piece multi-layer structure.

[0013] The utility model discloses the beneficial effect is:

[0014] 1.The utility model provides a kind of tubular medical instrument air tightness testing device, including support assembly, gas guide storage assembly being set in support assembly and adjustable placing assembly being set in the top of support assembly, this setting provides effective support and placement space for gas guide storage assembly and adjustable placing assembly by support assembly, the pumping, flow guiding and temporary storage of external gas (air, helium, nitrogen and other gases that can be used for tubular medical instrument air tightness testing) are carried out by gas guide storage assembly, tubular medical instrument is conveniently placed and fixed by adjustable placing assembly, in general, compared with the tubular medical instrument air tightness testing device of the past, the tubular medical instrument air tightness testing device provides effective support and placement space for gas guide storage assembly and adjustable placing assembly by support assembly, so that the air tightness testing work of tubular medical instrument can be normally carried out by the whole device, the pumping, flow guiding and temporary storage of external gas (air, helium, nitrogen and other gases that can be used for tubular medical instrument air tightness testing) are carried out by gas guide storage assembly, improve the inflation efficiency in testing process, and then improve the efficiency of the whole air tightness testing to a certain extent, tubular medical instrument is conveniently placed and fixed by adjustable placing assembly, and it is beneficial to the use of tubular medical instrument air tightness testing of a variety of different diameters, length specifications, and has stronger applicability and is more practical;Support assembly provides effective support and placement space for gas guide storage assembly and adjustable placing assembly by the combined setting of box, heat dissipation hole, support rod and top plate;Gas guide storage assembly is combinedly set by air inlet hole, miniature booster air pump, gas guide pipe, gas storage tank, filter plate, miniature air filter and gas guide ring plate, external gas (air, helium, nitrogen and other gases that can be used for tubular medical instrument air tightness testing) can be pumped into gas storage tank through multiple air inlet holes by controlling multiple miniature booster air pumps to run at the same time, and after preliminary filtration by filter plate, it enters miniature air filter for further filtration, the gas filtered by miniature air filter will flow out of gas storage tank under the flow guiding effect of gas guide ring plate, the whole process principle is simple, easy to operate, can quickly realize the pumping, flow guiding and temporary storage of external gas (air, helium, nitrogen and other gases that can be used for tubular medical instrument air tightness testing), and improve the inflation efficiency in air tightness testing process to a certain extent.The adjustable placing assembly is provided by the combination of the sliding block, the limiting guide slot, the placing slot body, the lower placing cavity, the first electric push rod, the upper placing cavity, the rubber end cover, the fixing block, the second electric push rod, the horizontal rod, the gas flow sensor, the micro cylinder, the arc block, the pressure sensor, the first gas hole, the second gas hole and the third gas hole, so that when the upper placing cavity is in the initial position (i.e., the first electric push rod is in the compressed state, and the upper placing cavity is spaced from the lower placing cavity), the placing slot body can be pulled out from the top of the gas storage tank by manually pulling the handle under the corresponding guiding and limiting action of the two sliding blocks and the two limiting guide slots, then the tubular medical instrument to be tested is horizontally wrapped around the periphery of the horizontal rod, and then the first end thereof is fixedly connected with the rubber end cover located at the rear side, and the second end thereof is fixedly connected with the rubber end cover located at the front side by controlling the second electric push rod according to the length of the tubular medical instrument to be tested, then the number of the micro cylinders to be adjusted is determined according to the length of the tubular medical instrument to be tested, and then the plurality of micro cylinders are telescoped to the appropriate length according to the diameter of the tubular medical instrument to be tested, at this time, the tubular medical instrument to be tested is completely fixed, then the handle is manually gripped and pushed backward to retract the placing slot body, the first electric push rod is controlled to be elongated to drive the upper placing cavity to descend, and the elongation is stopped when the bottom end surface of the upper placing cavity contacts the top end surface of the lower placing cavity to form a closed placing cavity, at this time, the filtered gas (air, helium, nitrogen and other gases that can be used for tubular medical instrument air tightness test) will enter the closed placing cavity formed by the upper placing cavity and the lower placing cavity under the guiding action of the gas guide ring plate in sequence through the third gas hole, the second gas hole and the first gas hole, and the pressure sensor and the gas flow sensor are always in working state during the entire inflation stage of the placing cavity, when the value detected by the gas flow sensor is always within the set range during the entire process that the value monitored by the pressure sensor reaches the set value, then the tubular medical instrument to be tested meets the air tightness requirement, otherwise, the tubular medical instrument to be tested does not meet the air tightness requirement, of course, the set value of the pressure sensor and the value range detected by the gas flow sensor in the above process will be different according to the air tightness test standards of different types of tubular medical instruments, the whole process is simple in principle and easy to operate, can quickly install and fix the tubular medical instrument and test the air tightness, and is more practical.

[0015] 2. The utility model also includes cleaning subassembly, and the cleaning subassembly is set up through the combination of vertical guide rod, horizontal guide rod, brush, sliding guide groove, gear, upper rack and lower rack, can drive two vertical guide rods to move when two sliding blocks slide, and the movement of two vertical guide rods drives horizontal guide rod to move synchronously, and because two gears and two groups of racks (upper rack and lower rack) are in meshing connection, the gear rolls along the rack (upper rack and lower rack) linearly, and because horizontal guide rod is rotatably connected with two vertical guide rods and fixedly connected with two gears, horizontal guide rod rolls synchronously with two gears when moving with two vertical guide rods, and the brush around horizontal guide rod rolls synchronously to clean the filter plate, and the whole process is simple in principle, and can clean the filter plate during the process of retracting and extending the placing groove.

[0016] 3. The utility model discloses the front side adjacent of box is provided with display and keyboard, is provided with controller on the bottom inner wall of box, display, keyboard, micro -type pressure -boosting air pump, micro -type air filter, first electric push rod, second electric push rod, gas flow sensor, pressure sensor and micro -cylinder are electrically connected with controller respectively, and this setting is controlled respectively to display, keyboard, micro -type pressure -boosting air pump, micro -type air filter, first electric push rod, second electric push rod, gas flow sensor, pressure sensor and micro -cylinder through controller, make this device can normally operate.

[0017] 4. The utility model discloses the rear side fixed setting of placing groove is provided with connecting plate, and the rear end of connecting plate is rotatably connected with the first end of pressing plate, and the tail end of pressing plate is magnetically fixed with the magnetic stripe on the rear side of top plate, this setting can pull the placing groove and pull the connecting plate and pressing plate synchronously, and under the limiting of sliding limiting groove, the sliding gap between the bottom end surface of connecting plate or pressing plate and gas storage tank is always in a certain range, which is beneficial to temporarily block the third gas hole on the top of gas storage tank to prevent gas leakage.

[0018] 5. The utility model discloses the four ends of box bottom correspond setting are provided with the supporting leg, and this setting provides the support for the whole device, and also makes the gap between box and placing surface, which is convenient for pumping external gas (air, helium, nitrogen and other gases that can be used for tubular medical instrument gas tightness test) into gas storage tank.

[0019] 6. The utility model discloses the front side of placing groove is provided with handle, and this setting is convenient for pulling the placing groove and installing tubular medical instrument.

[0020] 7. The utility model discloses rubber end cap is integral multilayer structure, this setting is convenient for the installation and fixation of various different diameter size tubular medical instrument, further improve the test efficiency to a certain extent, more practical. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is the front view structure schematic drawing of the utility model;

[0022] Figure 2 It is the front view sectional structure schematic drawing of the utility model;

[0023] Figure 3 It is the left view sectional structure schematic drawing of the utility model;

[0024] Figure 4 It is Figure 2 The enlarged structure schematic drawing of A portion in middle;

[0025] Figure 5 It is Figure 2 The enlarged structure schematic drawing of B portion in middle;

[0026] Figure 6 It is Figure 3 The enlarged structure schematic drawing of C portion in middle.

[0027] Drawing reference: 1: support assembly 2: gas storage assembly, 3: adjustable placing assembly, 4: box, 5: support rod, 6: top plate, 7: air inlet hole, 8: micro booster gas pump, 9: gas guide pipe, 10: gas storage tank, 11: filter plate, 12: micro air filter, 13: gas guide ring plate, 14: sliding block, 15: limit guide slot, 16: placing groove, 17: lower placing cavity, 18: first electric push rod, 19: upper placing cavity, 20: rubber end cap, 21: fixed block, 22: second electric push rod, 23: cross bar, 24: gas flow sensor, 25: micro air cylinder, 26: arc block, 27: pressure sensor, 28: first air hole, 29: second air hole, 30: third air hole, 31: cleaning assembly, 32: vertical guide rod, 33: horizontal guide rod, 34: brush, 35: sliding guide slot, 36: gear, 37: upper rack, 38: lower rack, 39: display, 40: keyboard, 41: controller, 42: connecting plate, 43: pressing plate, 44: magnetic stripe, 45: support leg, 46: handle, 47: guide strip board, 48: sliding limit slot. DETAILED DESCRIPTION

[0028] The technical solutions of the present application will be described clearly and completely in connection with the drawings. Obviously, the described embodiments are some of the embodiments of the present application, but not all the embodiments. Based on the embodiments of the present application, all the other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.

[0029] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0030] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting", "setting" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0031] As Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6As shown, it comprises a support assembly 1, a gas guiding and storing assembly 2 arranged in the support assembly 1, and an adjustable placing assembly 3 arranged on the top of the support assembly 1, which provides effective support and placement space for the gas guiding and storing assembly 2 and the adjustable placing assembly 3 through the support assembly 1, pumps, guides and temporarily stores external gas (air, helium, nitrogen and other gases that can be used for tubular medical instrument air tightness test) through the gas guiding and storing assembly 2, and facilitates the placement and fixation of the tubular medical instrument through the adjustable placing assembly 3. Overall, compared with the previous tubular medical instrument air tightness test device, the tubular medical instrument air tightness test device provides effective support and placement space for the gas guiding and storing assembly 2 and the adjustable placing assembly 3 through the support assembly 1, so that the whole device can normally perform the air tightness test of the tubular medical instrument, improves the inflation efficiency in the test process through the gas guiding and storing assembly 2, and thus improves the efficiency of the whole air tightness test to a certain extent, facilitates the placement and fixation of the tubular medical instrument through the adjustable placing assembly 3, and is suitable for the air tightness test of tubular medical instruments of various diameters and lengths, which is more suitable and practical. The support assembly 1 comprises a box body 4, which is arranged in a "concave" shape. The rear side of the box body 4 is provided with a heat dissipation hole. The four corners of the top of the box body 4 are vertically provided with a support rod 5. The top of the four support rods 5 is provided with a top plate 6 corresponding to the box body 4. The box body 4, the support rod 5 and the top plate 6 are all made of metal materials. This arrangement provides effective support and placement space for the gas guiding and storing assembly 2 and the adjustable placing assembly 3 through the combination of the box body 4, the support rod 5 and the top plate 6. The gas guiding and storing assembly 2 comprises a plurality of air inlet holes 7 penetratingly arranged on the bottom wall of the box body 4. Above the plurality of air inlet holes 7, a micro booster air pump 8 is arranged correspondingly. The micro booster air pump 8 can be a ZCYY60APM / DC24V type micro air pump produced by Guangzhou Zhisheng Yilian Technology Co., Ltd. Each micro booster air pump 8 is communicated with a gas storage tank 10 arranged on the inner wall of the top of the box body 4 through a gas guiding pipe 9. Above the position corresponding to the plurality of gas guiding pipes 9 in the gas storage tank 10, a filter plate 11 is horizontally arranged. A micro air filter 12 is arranged above the middle part of the filter plate 11. The micro air filter 12 can be a 015QPS type air filter produced by Hangzhou Lanka Purification Equipment Co., Ltd. A gas guiding ring plate 13 is fixedly arranged between the micro air filter 12 and the top of the gas storage tank 10. This arrangement can control the simultaneous operation of the plurality of micro booster air pumps 8 to pump the external gas (air, helium, nitrogen and other gases that can be used for tubular medical instrument air tightness test) into the gas storage tank 10 through the plurality of air inlet holes 7, and after the preliminary filtration of the filter plate 11, the gas enters the micro air filter 12 for further filtration.The gas filtered by the miniature air filter 12 will flow out of the gas storage tank 10 under the guiding action of the gas guiding ring plate 13. The whole process is simple in principle and easy to operate, and can quickly realize the pumping, guiding and temporary storage of external gas (air, helium, nitrogen and other gases that can be used for tubular medical instrument air tightness test), which improves the inflation efficiency to a certain extent during the air tightness test. The adjustable placing assembly 3 comprises a placing groove body 16 connected with the two limiting guide grooves 15 on the top of the gas storage tank 10 through two sliding blocks 14, the length of the limiting guide groove 15 is less than the length of the gas storage tank 10, a lower placing cavity 17 is fixedly arranged in the placing groove body 16, a upper placing cavity 19 is arranged below the lower placing cavity 17 through a first electric push rod 18, the upper placing cavity 19 and the lower placing cavity 17 are both semi-enclosed structures and are oppositely arranged, the first electric push rod 18 can be an electric push rod of SKD model produced by Shaoxing Skobemans Intelligent Drive Co., Ltd., the lower placing cavity 17 and the upper placing cavity 19 can form a closed placing cavity, two rubber end covers 20 are symmetrically arranged on the inner wall of the lower placing cavity 17, the rubber end cover 20 on the front side is fixedly connected with the front inner wall of the lower placing cavity 17 through a fixing block 21, the rubber end cover 20 on the rear side is connected with the rear inner wall of the lower placing cavity 17 through a second electric push rod 22, the second electric push rod 22 can be a Juyin 12 / 24V miniature pen type electric push rod produced by Zhejiang Juyin Intelligent Technology Co., Ltd., and a horizontal rod 23 is horizontally arranged in the center of the rubber end cover 20 on the rear side, a gas flow sensor 24 is fixedly arranged at the front end of the horizontal rod 23, the gas flow sensor 24 can be a GZP6897D type gas flow differential pressure sensor produced by Shenzhen Xingkaisheng Technology Co., Ltd., a plurality of miniature air cylinders 25 are arranged on the bottom inner wall of the lower placing cavity 17 and the top inner wall of the upper placing cavity 19, the miniature air cylinders 25 can be LAS10 type miniature servo cylinders produced by Beijing Shihou Robot Technology Co., Ltd., arc-shaped blocks 26 are arranged on the moving ends of the plurality of miniature air cylinders 25, the plurality of miniature air cylinders 25 and the plurality of first air holes 28 are arranged at intervals, a pressure sensor 27 is arranged on the top inner wall of the upper placing cavity 19, the pressure sensor 27 is a CRP500-01-A-E1-M0-A1-N1-D1-F1 type pressure sensor produced by Hua Dian Automation Technology Co., Ltd. in Huaibei City, a plurality of first air holes 28 are arranged on the bottom wall of the lower placing cavity 17, a plurality of second air holes 29 are arranged on the bottom wall of the placing groove body 16 corresponding to the plurality of first air holes 28, and a plurality of third air holes 30 are arranged on the top wall of the gas storage tank 10 corresponding to the plurality of second air holes 29.By manually pulling the handle 46 to make the placing groove 16 under the corresponding guiding and limiting action of the two sliders 14 and the two limiting guide grooves 15 to pull the placing groove 16 out of the top of the gas storage tank 10, then the tubular medical instrument to be tested is horizontally around the periphery of the horizontal rod 23, and then the first end is fixedly connected with the rubber end cap 20 located at the rear side, and then the end is fixedly connected with the rubber end cap 20 located at the front side by controlling the second electric push rod 22 according to the length size of the tubular medical instrument to be tested, then the number of micro pneumatic cylinders 25 needed to be adjusted is determined according to the length size of the tubular medical instrument to be tested, and then the multiple micro pneumatic cylinders 25 are telescoped to the appropriate length according to the diameter size of the tubular medical instrument to be tested, at this time the complete fixing of the tubular medical instrument to be tested is completed, then the handle 46 is manually gripped and pushed backward to retract the placing groove 16, and the first electric push rod 18 is controlled to be elongated to drive the upper placing cavity 19 to descend, until the bottom end surface of the upper placing cavity 19 and the top end surface of the lower placing cavity 17 are in contact to form a closed placing cavity, then the filtered gas (air, helium, nitrogen, etc. which can be used for tubular medical instrument air tightness test) will enter the closed placing cavity formed by the upper placing cavity 19 and the lower placing cavity 17 under the guiding action of the gas guiding ring plate 13 in sequence through the third gas hole 30, the second gas hole 29 and the first gas hole 28, the pressure sensor 27 and the gas flow sensor 24 are always in working state during the entire inflation stage of the placing cavity, when the value detected by the gas flow sensor 24 is always within the set range during the entire process that the value monitored by the pressure sensor 27 reaches the set value, then the tubular medical instrument being tested meets the air tightness requirement, otherwise, the tubular medical instrument being tested does not meet the air tightness requirement, of course, the set value of the pressure sensor 27 and the value range detected by the gas flow sensor 24 in the above process will be different according to the air tightness test standards of different types of tubular medical instruments, the whole process principle is simple, the operation is simple, the tubular medical instrument can be quickly installed and fixed and the air tightness test is more practical.

[0032] As Figure 2 , Figure 3 , Figure 4 and Figure 5As shown, the cleaning assembly 31 includes vertical guide rods 32 arranged at the bottom of the two sliders 14, the bottom of the two vertical guide rods 32 is rotatably penetrated through a horizontal guide rod 33, the periphery of the horizontal guide rod 33 is provided with a brush 34 corresponding to the filter plate 11, both ends of the horizontal guide rod 33 are arranged in the sliding guide groove 35 on the gas storage tank 10, both ends of the horizontal guide rod 33 are fixedly connected with a gear 36, the top wall of the sliding guide groove 35 is provided with an upper gear rack 37 corresponding to the gear 36, and the bottom wall of the sliding guide groove 35 is provided with a lower gear rack 38 corresponding to the gear 36. This arrangement can drive the two vertical guide rods 32 to move synchronously when the two sliders 14 slide, and the movement of the two vertical guide rods 32 will drive the horizontal guide rod 33 to move synchronously. Since the two gears 36 are in meshing connection with the two gear racks (the upper gear rack 37 and the lower gear rack 38), the gear 36 rolls linearly along the gear rack (the upper gear rack 37 and the lower gear rack 38), and since the horizontal guide rod 33 is rotatably connected with the two vertical guide rods 32 and fixedly connected with the two gears 36, the horizontal guide rod 33 rolls synchronously with the two gears 36 during the movement of the two vertical guide rods 32, and the brush 34 on the periphery of the horizontal guide rod 33 rolls synchronously to clean the filter plate 11. The whole process is simple in principle and can achieve simple cleaning of the filter plate 11 during the process of folding and unfolding the placing groove 16.

[0033] As shown in Figure 1 , Figure 2 and Figure 3 , the front side of the box body 4 is adjacent to a display 39 and a keyboard 40, and the inner wall of the bottom of the box body 4 is provided with a controller 41. The display 39, the keyboard 40, the micro booster air pump 8, the micro air filter 12, the first electric push rod 18, the second electric push rod 22, the gas flow sensor 24, the pressure sensor 27 and the micro air cylinder 25 are electrically connected with the controller 41. The controller 41 can be an OHR-PR10 type programmable controller produced by Fujian Shunchang Hongrun Precision Instrument Co., Ltd., and the display 39 can be an M057GWV3 R0 type industrial display liquid crystal screen. This arrangement can make the device run normally through the respective control of the display 39, the keyboard 40, the micro booster air pump 8, the micro air filter 12, the first electric push rod 18, the second electric push rod 22, the gas flow sensor 24, the pressure sensor 27 and the micro air cylinder 25 by the controller 41.

[0034] As shown in Figure 1 , Figure 2 and Figure 3As shown, the rear side of the placing groove body 16 is fixedly provided with a connecting plate 42, the connecting plate 42 is slidingly arranged in a sliding limiting groove 48 on the box body 4, the rear end of the connecting plate 42 is rotationally connected with the leading end of a pressing plate 43, the trailing end of the pressing plate 43 is magnetically fixed with a magnetic strip 44 located at the rear side of the top plate 6, the rear side of the box body 4 is horizontally provided with a guide strip 47 corresponding to the connection between the pressing plate 43 and the connecting plate 42, the guide strip 47 is used for horizontally guiding the pressing plate 43, this setting can pull the placing groove body 16 at the same time, and the connecting plate 42 and the pressing plate 43 are synchronously pulled, and under the limiting action of the sliding limiting groove 48, the sliding gap between the bottom end surface of the connecting plate 42 or the pressing plate 43 and the gas storage tank 10 is always within a certain range, which is beneficial to temporarily block the plurality of third gas holes 30 at the top of the gas storage tank 10 to prevent a large amount of gas leakage.

[0035] As shown in Figure 1 , Figure 2 and Figure 3 , the four ends of the bottom of the box body 4 are correspondingly provided with supporting legs 45, which provides support for the entire device and also allows a gap between the box body 4 and the placement surface, facilitating the pumping of external gas (air, helium, nitrogen, etc. that can be used for tubular medical instrument airtightness testing) into the gas storage tank 10.

[0036] As shown in Figure 1 and Figure 3 , the front side of the placing groove body 16 is correspondingly provided with a handle 46, which facilitates pulling of the placing groove body 16 and facilitates installation of the tubular medical instrument.

[0037] As shown in Figure 2 and Figure 3 , the rubber end cap 20 is a one-piece multi-layer structure, which can be made by molding process, which facilitates the installation and fixation of various diameters of tubular medical instruments, thereby improving the testing efficiency to a certain extent and being more practical.

[0038] The specific operation principle is:

[0039] In use of the tubular medical instrument airtightness testing device, first of all, the device needs to be placed in a suitable working position, connected to an external power supply, so that the electrical components contained in the device are in running state or standby state; when the upper placement cavity is in the initial position (i.e. the first electric push rod is in the compressed state, and the upper placement cavity and the lower placement cavity are spaced apart), the handle is manually pulled to pull the placement groove out of the top of the gas storage tank under the corresponding guiding and limiting action of the two sliding blocks and the two limiting guide grooves, and then the tubular medical instrument to be tested is wrapped horizontally around the outer periphery of the crossbar, and then the first end is fixedly connected with the rubber end cap on the rear side, and then the second electric push rod is controlled to adjust the length of the tubular medical instrument to be tested, and then the tail end is fixedly connected with the rubber end cap on the front side, and then the number of micro air cylinders needed to be adjusted is determined according to the length of the tubular medical instrument to be tested, and then the multiple micro air cylinders are collectively telescoped to a suitable length according to the diameter of the tubular medical instrument to be tested, at this time the tubular medical instrument to be tested is completely fixed, then the handle is manually gripped and pushed backward to retract the placement groove, the first electric push rod is controlled to extend to drive the upper placement cavity to descend, and the extension is stopped when the bottom end surface of the upper placement cavity contacts the top end surface of the lower placement cavity to form a sealed placement cavity, at this time the filtered gas (air, helium, nitrogen, etc. which can be used for tubular medical instrument airtightness testing) will enter the sealed placement cavity formed by the upper placement cavity and the lower placement cavity under the guiding action of the gas guide ring plate through the third gas hole, the second gas hole and the first gas hole in turn, and the pressure sensor and the gas flow sensor are always in working state during the entire inflation stage of the placement cavity, when the value monitored by the pressure sensor reaches the set value, and the value detected by the gas flow sensor always changes within the set range, then the tubular medical instrument to be tested meets the airtightness requirement, otherwise the tubular medical instrument to be tested does not meet the airtightness requirement; during the above testing process, when the handle is pushed backward, the controller can be controlled to control multiple micro air booster pumps to run simultaneously to pump external gas (air, helium, nitrogen, etc. which can be used for tubular medical instrument airtightness testing) into the gas storage tank through multiple air inlet holes, and then the gas is further filtered in the micro air filter after being preliminarily filtered by the filter plate, and the filtered gas flows out of the gas storage tank under the guiding action of the gas guide ring plate.Meanwhile, in the above test process, the filter plate can be cleaned simply during the process of placing and taking out the groove body, that is, the two vertical guide rods are moved synchronously when the two sliders slide, the movement of the two vertical guide rods drives the horizontal guide rod to move synchronously, and since the two gears are in meshing connection with the two sets of racks (the upper rack and the lower rack), the gears roll linearly along the racks (the upper rack and the lower rack), and since the horizontal guide rod is rotationally connected with the two vertical guide rods and fixedly connected with the two gears, the horizontal guide rod rolls synchronously with the two gears during the movement of the two vertical guide rods, so that the brush on the periphery of the horizontal guide rod rolls synchronously to clean the filter plate simply.

[0040] The electrical components in the present application can be connected with the main controller and 220V mains through a transformer, and the main controller can be a conventional known device such as a computer, which can receive various data signals monitored by the device in real time. The electrical components in the present application are used according to the structural characteristics of the product, and the product can be adjusted and modified after purchase to better match and conform to the technical solution of the present application. The product can be replaced and modified according to the required technical parameters, and it is well known to those skilled in the art. Therefore, those skilled in the art can clearly obtain the corresponding use effect through the technical solution provided by the present application.

[0041] The control mode of the present application is automatically controlled by a controller, and the control circuit of the controller can be realized by simple programming by those skilled in the art. The power supply is also a common knowledge in the art. The present application is mainly used to protect mechanical devices, so the control mode and circuit connection of the present application will not be explained in detail.

[0042] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, but not to limit them; although the present application has been described in detail with reference to the above embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the above embodiments, or make equivalent replacement for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A tubular medical device air tightness testing apparatus, characterized by, The utility model provides a kind of adjustable air storage device, including support component, air guide storage component being arranged in the support component and adjustable placing component being arranged on the top of the support component; The support component includes a box, and a top plate is arranged on the top of the box corresponding to the four support rods. The air guide storage component includes a plurality of air inlet holes opened through the bottom wall of the box, and a micro air booster pump is arranged above each air inlet hole. The adjustable placing component includes a placing groove connected with the two limiting guide grooves on the top of the gas storage tank through two sliders, a lower placing cavity is fixedly arranged in the placing groove, an upper placing cavity is arranged below the lower placing cavity through a first electric push rod corresponding to the lower placing cavity, two rubber end caps are symmetrically arranged on the inner wall of the lower placing cavity, the rubber end cap on the front side is fixedly connected with the front inner wall of the lower placing cavity through a fixed block, the rubber end cap on the rear side is connected with the rear inner wall of the lower placing cavity through a second electric push rod, and a horizontal rod is horizontally arranged in the center of the rubber end cap on the rear side, a gas flow sensor is fixedly arranged on the front end of the horizontal rod, a plurality of micro air cylinders are arranged on the bottom inner wall of the lower placing cavity and the top inner wall of the upper placing cavity, an arc-shaped block is arranged on the moving end of each micro air cylinder, a pressure sensor is arranged on the top inner wall of the upper placing cavity, a plurality of first air holes are arranged through the bottom wall of the lower placing cavity, a plurality of second air holes are arranged through the bottom wall of the placing groove corresponding to the first air holes, and a plurality of third air holes are arranged through the top wall of the gas storage tank corresponding to the second air holes.

2. The apparatus of claim 1, wherein the apparatus is configured to be used with a tubular medical device having a length of at least 1 meter. The cleaning component includes two vertical guide rods arranged on the bottom of the two sliders, a horizontal guide rod is rotatably arranged through the bottom of the two vertical guide rods, a brush is arranged on the periphery of the horizontal guide rod corresponding to the filter plate, both ends of the horizontal guide rod are arranged in the sliding guide groove on the gas storage tank, gears are fixedly connected to both ends of the horizontal guide rod, an upper gear rack is arranged on the top wall of the sliding guide groove corresponding to the gears, and a lower gear rack is arranged on the bottom wall of the sliding guide groove corresponding to the gears.

3. The apparatus of claim 1, wherein the apparatus is configured to be used with a tube having a length of at least 1 meter. A display and a keyboard are arranged adjacent to the front side of the box, a controller is arranged on the bottom inner wall of the box, and the display, the keyboard, the micro air booster pump, the micro air filter, the first electric push rod, the second electric push rod, the gas flow sensor, the pressure sensor, and the micro air cylinders are electrically connected to the controller, respectively.

4. The apparatus of claim 1, wherein the apparatus is configured to be used with a tube having a length of at least 1 meter. The rear side of the placing groove body is fixedly provided with a connecting plate, the rear end of the connecting plate is rotationally connected with the front end of a pressing plate, and the rear end of the pressing plate is fixedly connected with a magnetic strip on the rear side of the top plate.

5. The apparatus of claim 1, wherein the apparatus is configured to be used with a tubular medical device having a length of at least 1 meter. Four ends of the bottom of the box body are correspondingly provided with supporting legs.

6. The apparatus of claim 1, wherein, The front side of the placing groove body is correspondingly provided with a handle.

7. The apparatus of claim 1, wherein the apparatus is configured to be used with a tubular medical device having a length of at least 1 meter. The rubber end cover is an integrated multi-layer structure.

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