CN115824514B - Medical instrument gas tightness testing arrangement - Google Patents
Medical instrument gas tightness testing arrangement Download PDFInfo
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- CN115824514B CN115824514B CN202310112850.XA CN202310112850A CN115824514B CN 115824514 B CN115824514 B CN 115824514B CN 202310112850 A CN202310112850 A CN 202310112850A CN 115824514 B CN115824514 B CN 115824514B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
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Abstract
The invention discloses a medical instrument air tightness testing device. A hollow rotating shaft is rotatably arranged above the water tank, and two ends of the hollow rotating shaft are respectively provided with a clamping tool; the clamping tool comprises a hollow rotary table fixedly sleeved on the hollow rotary shaft, a plurality of U-shaped brackets are uniformly distributed and fixed on the peripheral surface of the hollow rotary table, and a separated joint assembly is arranged on each U-shaped bracket; the joint assembly comprises a first threaded pipe, a second threaded pipe and a third threaded pipe which are sequentially connected; the end part of the third threaded pipe is connected with a pressing sleeve through threads, and an elastic expansion sleeve is arranged between the end part of the third threaded pipe and the pressing sleeve; the third screwed pipe outer cover is provided with an outer sleeve, and an elastic gasket opposite to the elastic expansion sleeve is fixed on the inner wall of the outer sleeve. According to the hose clamping device, the clamping structure and the air source connecting structure are integrated into a whole, so that the hose clamping efficiency is greatly improved; when the hose of bottom is detecting the experiment, the clamping frock of top begins the new hose of clamping, rotates in proper order and changes, has improved detection experiment efficiency greatly.
Description
Technical Field
The invention relates to the technical field of medical equipment production, in particular to a medical instrument air tightness testing device.
Background
The surgical instruments refer to medical instruments used in clinical operations, and besides conventional surgical instruments, there are also instruments for special use. The surgical instruments often use tubular components to carry gases and liquids or to provide occlusion. The air tightness test is an indispensable procedure in the production of medical tube parts, and avoids the adverse effects on patients and doctors caused by air and liquid leakage due to the air tightness problem of the pipelines.
Chinese patent discloses a gas tightness check out test set (CN 217930716U) to surgical instruments hose, including detecting the water tank, the symmetrical fixed mounting of tip has the backup pad under the detection water tank, the symmetrical fixed mounting of tip has the cushion on the detection water tank, the symmetrical fixed mounting of tip has the riser on the detection water tank, elevating system includes the fixed block, fixed block and telescopic link fixed connection, the dovetail has been seted up to the fixed block lower extreme, the fixed block lower extreme symmetrical fixed mounting has the connecting block, the inside symmetrical movable mounting of dovetail has the dovetail, the equal fixed mounting of tip has the connecting strip under two dovetails, equal fixed mounting has the arc piece on two connecting strip opposite ends, equal movable mounting has the hose between two sets of rubber pads on two sets of arc piece opposite ends, hose surface symmetrical fixed mounting has the joint for this equipment can detect the hose gas tightness when using, the testing result is directly perceived.
The defects of the prior art are as follows: the clamping efficiency is low, the rotating column is rotated to drive the two connecting strips to open and close, so that hose joints at two ends are clamped or loosened, the operation is inconvenient, the sealing of the hose joints cannot be realized, the interior of a hose is easy to pollute during detection, and the follow-up use is not facilitated; after the hose is clamped, the air charging device is connected with the hose connector, so that the operation steps of equipment are further increased; only one hose detection experiment can be completed at a time, then a new hose needs to be clamped again, the detection flow is not smooth enough, and the efficiency is low.
Disclosure of Invention
In order to solve the defects in the prior art, the invention provides a medical instrument air tightness testing device. The air tightness testing device integrates the clamping and the connection of the air charging device, and completes the clamping of a new hose when the hose is tested, so that the hose testing efficiency is improved.
The invention adopts the following technical scheme: the air tightness testing device for the medical instrument comprises a water tank, wherein a hollow rotating shaft is rotatably arranged above the water tank, two ends of the hollow rotating shaft are connected with an air source through rotating connectors, and one end of the hollow rotating shaft is connected with a power device; two ends of the hollow rotating shaft are respectively provided with a clamping tool; the clamping tool comprises a hollow rotary table, wherein the axis of the hollow rotary table is fixedly sleeved on a hollow rotary shaft, and the hollow rotary shaft is provided with a vent hole communicated with the inner cavity of the hollow rotary table; a plurality of U-shaped brackets are uniformly distributed and fixed on the peripheral surface of the hollow turntable, and separated joint assemblies are arranged on the U-shaped brackets; the joint assembly includes a first threaded pipe, a second threaded pipe, and a third threaded pipe; the first threaded pipe is arranged on the U-shaped bracket and the hollow turntable in a penetrating way, the inner end of the first threaded pipe is communicated with the inner cavity of the hollow turntable, and a three-way electromagnetic valve is arranged in the first threaded pipe; the third threaded pipe is arranged at one end of the U-shaped bracket far away from the hollow turntable in a penetrating way; the second threaded pipe is connected between the first threaded pipe and the third threaded pipe; the end part of the third threaded pipe is connected with a pressing sleeve through threads, and an elastic expansion sleeve is arranged between the end part of the third threaded pipe and the pressing sleeve; the third threaded pipe outer cover is provided with an outer sleeve, and an elastic gasket opposite to the elastic expansion sleeve is fixed on the inner wall of the outer sleeve.
It is further: two ends of the hollow rotating shaft are respectively connected with a support plate through bearings, and the support plates are fixed on the water tank through bolts; the power device comprises a motor, and the motor is connected with the hollow rotating shaft through a chain wheel and a transmission chain.
The side surface of the hollow turntable is fixedly provided with detection blocks which are in one-to-one correspondence with the U-shaped brackets; the support plate is fixedly provided with a mounting plate, and the mounting plate is fixedly provided with a position sensor opposite to the detection block at the highest position.
The hollow rotary table comprises a cylinder body, and the circumferential surface of the cylinder body is of a regular hexagon structure; two sides of the cylinder body are connected with round sealing plates through bolts; the center of the sealing plate is provided with a hole, and the central hole of the sealing plate is sleeved and fixed on the hollow rotating shaft.
And a stop valve is arranged in the middle of the hollow rotating shaft.
The first threaded pipe and the third threaded pipe are provided with external threads, the second threaded pipe is provided with internal threads, and two ends of the second threaded pipe are fixed with the first threaded pipe and the third threaded pipe through threaded connection.
The two ends of the elastic expansion sleeve are provided with convex clamping rings, and the inner wall of the elastic expansion sleeve is provided with an arc-shaped groove; the end part of the third threaded pipe is provided with an inner spigot matched with the clamping ring of the elastic expansion sleeve; the pressing sleeve is arranged in the elastic expansion sleeve in a penetrating mode, the inner end of the pressing sleeve is fixedly arranged in the third threaded pipe through threaded connection, a through groove opposite to the arc-shaped groove of the elastic expansion sleeve is formed in the middle of the pressing sleeve, and the outer end of the pressing sleeve is provided with an inner spigot matched with the clamping ring of the elastic expansion sleeve.
And an inner hexagonal counter bore is formed in the outer end of the pressing sleeve.
The end part of the outer sleeve is provided with an inner edge extending inwards, and the inner edge is sleeved on the third threaded pipe; the third threaded pipe is provided with a shoulder pressed on the inner edge.
The invention has the beneficial effects that: the hose connector is sleeved between the outer sleeve and the pressing sleeve, the three-way electromagnetic valve is connected with the air source, and then the elastic expansion sleeve is pushed by air pressure to clamp the hose connector, so that the clamping structure and the air source connecting structure are integrated into a whole, and the clamping efficiency of the hose is greatly improved; when the hose at the bottom is in a detection experiment, the clamping tool at the top starts to clamp a new hose, and the hose is sequentially rotated and replaced, so that the detection experiment efficiency is greatly improved; the joint assembly adopts a separated threaded connection structure, so that the joint assembly is convenient to replace, clamping tools at two ends of the hollow rotating shaft can also work independently, different double-head and single-head hoses can be adapted, and the detection adaptation product range is wide.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a front view of a medical device air tightness test apparatus according to the present invention.
Fig. 2 is an enlarged view at a in fig. 1.
Fig. 3 is a left side view of a medical device air tightness test device according to the present invention.
Fig. 4 is an assembly diagram of the air tightness test device for medical equipment of the present invention in operation.
Fig. 5 is an enlarged view at B in fig. 4.
Fig. 6 is an exploded view of the components of fig. 5.
Reference numerals illustrate: 1. a water tank; 2. a hollow rotating shaft; 201. a vent hole; 3. a hollow turntable; 301. a cylinder; 302. a sealing plate; 4. a rotary joint; 5. a U-shaped bracket; 6. a first threaded pipe; 7. a second threaded tube; 8. a third threaded tube; 801. a shoulder; 9. pressing the sleeve; 901. a through groove; 10. an elastic expansion sleeve; 1001. a clasp; 1002. an arc-shaped groove; 11. an outer sleeve; 1101. an inner edge; 12. an elastic washer; 13. a support plate; 14. a motor; 15. a sprocket; 16. a drive chain; 17. a three-way electromagnetic valve; 18. a stop valve; 19. a detection block; 20. a mounting plate; 21. a position sensor; 22. and (3) a hose.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1 to 3, there is shown a medical instrument air tightness testing apparatus, wherein two ends of a hollow rotating shaft 2 are rotatably mounted on a support plate 13 through bearings, and the support plate 13 is fixed on a water tank 1 through bolts. The two ends of the hollow rotating shaft 2 are connected with an air source through a rotary joint 4, and a stop valve 18 is arranged in the middle of the hollow rotating shaft 2. One end of the hollow rotating shaft 2 is fixed with a chain wheel and a chain wheel 15, and the chain wheel 15 is connected with the motor 14 through a transmission chain 16. The intermittent motion of the hollow rotating shaft 2 is controlled by the motor 14, and gas with certain pressure is introduced into the hollow rotating shaft 2 by a gas source.
As shown in fig. 1 and 2, two ends of the hollow rotating shaft 2 are respectively provided with a clamping tool, and the clamping tools at the two ends are symmetrically arranged. The clamping fixture comprises a hollow turntable 3, wherein the hollow turntable 3 comprises a cylinder 301. The circumference of the cylinder 301 is of a regular hexagon structure, two sides of the cylinder 301 are connected with round sealing plates 302 through bolts, and a hollow inner cavity is formed between the cylinder 301 and the sealing plates 302. The center of the sealing plate 302 is provided with a hole, and the center hole of the sealing plate 302 is sleeved and fixed on the hollow rotating shaft 2. The hollow rotating shaft 2 is provided with a vent 201 communicated with the inner cavity of the hollow rotating disc 3.
A U-shaped bracket 5 is respectively fixed on the 6 planes of the circumference of the hollow turntable 3, and a separated joint component is arranged on the U-shaped bracket 5. The joint assembly comprises a first threaded pipe 6, a second threaded pipe 7 and a third threaded pipe 8. The first threaded pipe 6 is provided with external threads, the first threaded pipe 6 is arranged on the inner end of the U-shaped bracket 5 and the hollow rotary table 3 in a penetrating way through threaded connection, and the inner end of the first threaded pipe 6 is communicated with the inner cavity of the hollow rotary table 3. The third screwed pipe 8 is provided with external threads, and the third screwed pipe 8 is arranged at the outer end of the U-shaped bracket 5 in a penetrating way through threaded connection. The second threaded pipe 7 is provided with internal threads, and two ends of the second threaded pipe 7 are fixed with the first threaded pipe 6 and the third threaded pipe 8 through threaded connection. A three-way electromagnetic valve 17 is arranged in the first threaded pipe 6, and the three-way electromagnetic valve 17 can be communicated with the second threaded pipe 7 and the inner cavity of the hollow turntable 3 or communicated with the second threaded pipe 7 and the outside.
As shown in fig. 4 to 6, the end of the third threaded pipe 8 is provided with an internal thread, the inner end of the pressing sleeve 9 is provided with an external thread, and the inner end of the pressing sleeve 9 is fixedly arranged in the third threaded pipe 8 through threaded connection. The outer end of the pressing sleeve 9 is provided with an inner hexagonal counter bore, so that the pressing sleeve 9 can be screwed conveniently. An elastic expansion sleeve 10 is sleeved on the pressing sleeve 9, and two ends of the elastic expansion sleeve 10 are provided with convex snap rings 1001. The end of the third threaded pipe 8 is provided with an inner spigot matched with a clamping ring 1001 of the elastic expansion sleeve 10, the outer end of the pressing sleeve 9 is also provided with an inner spigot matched with the clamping ring 1001 of the elastic expansion sleeve 10, the elastic expansion sleeve 10 is positioned between the end of the third threaded pipe 8 and the outer end of the pressing sleeve 9 through the pressing sleeve 9, and sealing is realized through the matching of the inner spigot and the clamping ring 1001. The inner wall of the elastic expansion sleeve 10 is provided with an arc-shaped groove 1002, the middle part of the pressing sleeve 9 is provided with a through groove 901 which is opposite to the arc-shaped groove 1002 of the elastic expansion sleeve 10, when the pressing sleeve 9 is filled with high-pressure gas, the elastic expansion sleeve 10 expands outwards to a certain extent, so that the joint of the hose 22 on the outer side is pressed, and sealing and positioning are realized.
The outer sleeve 11 is covered outside the elastic expansion sleeve 10, the end of the outer sleeve 11 is provided with an inner edge 1101 extending inwards, and the inner edge 1101 is sleeved on the third threaded pipe 8. The third threaded tube 8 has a shoulder 801 pressed against the inner rim 1101 and the inner wall of the outer sleeve 11 is secured with a resilient washer 12 opposite the resilient expansion sleeve 10 for preliminary positioning of the hose 22. The third threaded pipe 8 and the outer sleeve 11 adopt a mounting structure of threaded connection and step positioning, so that the replacement is convenient.
As shown in fig. 1, a mounting plate 20 is fixed to one of the support plates 13. And 6 detection blocks 19 are fixed on the side of the sealing plate 302 of the hollow turntable 3 close to the mounting plate 20, and the detection blocks 19 are in one-to-one correspondence with the 6U-shaped brackets 5 on the peripheral surface. A position sensor 21 is fixed to the mounting plate 20 so as to face the highest position detection block 19, and the positions of the hollow turntable 3 and the respective U-shaped brackets 5 are determined by the position sensor 21.
Working principle:
as shown in fig. 1 to 6, a gas with a certain pressure is introduced into the hollow rotating shaft 2 through a gas source; the joints at two ends of the hose 22 are respectively connected with joint assemblies at the uppermost positions of the clamping tools at two sides, and at the moment, a three-way electromagnetic valve 17 in the joint assembly at the uppermost position is communicated with a second threaded pipe 7 and the outside; then, a hose 22 connector is inserted between the outer sleeve 11 and the elastic expansion sleeve 10, the three-way electromagnetic valve 17 is connected with the second threaded pipe 7 and the inner cavity of the hollow rotary disc 3, high-pressure gas starts to enter the hose 22, and if obvious air leakage exists, the three-way electromagnetic valve 17 needs to be closed in time to replace a new hose 22;
when the pressure sleeve 9 is filled with high-pressure gas, the elastic expansion sleeve 10 expands outwards to a certain extent, so that the joint of the hose 22 on the outer side is compressed, and sealing and positioning are realized; after the installation is finished, the hollow rotating shaft 2 drives the hollow rotating disc 3 to rotate by one station, and the installation of the next hose 22 is started; the hose 22 positioned at the lowermost side is sunk into the water tank, and the air tightness of the hose 22 can be intuitively judged by whether air bubbles exist.
According to the embodiment, the hose connector is clamped by pushing the elastic expansion sleeve by air pressure, the clamping structure and the air source connecting structure are integrated, and the clamping efficiency of the hose is greatly improved; when the hose of bottom is detecting the experiment, the clamping frock of top begins the new hose of clamping, rotates in proper order and changes, has improved detection experiment efficiency greatly.
In the description of the present specification, the descriptions of the terms "one embodiment," "example," "specific example," and the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The preferred embodiments of the invention disclosed above are intended only to assist in the explanation of the invention. The preferred embodiments are not exhaustive or to limit the invention to the precise form disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best understand and utilize the invention. The invention is limited only by the claims and the full scope and equivalents thereof.
Claims (8)
1. A medical instrument air tightness testing device comprises a water tank (1),
the method is characterized in that:
a hollow rotating shaft (2) is rotatably arranged above the water tank (1), two ends of the hollow rotating shaft (2) are connected with an air source through a rotary joint (4), and one end of the hollow rotating shaft (2) is connected with a power device; two ends of the hollow rotating shaft (2) are respectively provided with a clamping tool;
the clamping tool comprises a hollow rotary table (3), wherein the axis of the hollow rotary table (3) is fixedly sleeved on a hollow rotary shaft (2), and a vent hole (201) communicated to the inner cavity of the hollow rotary table (3) is formed in the hollow rotary shaft (2); a plurality of U-shaped brackets (5) are uniformly distributed and fixed on the peripheral surface of the hollow turntable (3), and a separated joint assembly is arranged on each U-shaped bracket (5);
the joint assembly comprises a first threaded pipe (6), a second threaded pipe (7) and a third threaded pipe (8); the first threaded pipe (6) is arranged on the U-shaped bracket (5) and the hollow rotary table (3) in a penetrating way, the inner end of the first threaded pipe (6) is communicated with the inner cavity of the hollow rotary table (3), and a three-way electromagnetic valve (17) is arranged in the first threaded pipe (6); the third threaded pipe (8) is arranged at one end of the U-shaped bracket (5) far away from the hollow turntable (3) in a penetrating way; the second threaded pipe (7) is connected between the first threaded pipe (6) and the third threaded pipe (8);
the end part of the third threaded pipe (8) is connected with a pressing sleeve (9) through threads, and an elastic expansion sleeve (10) is arranged between the end part of the third threaded pipe (8) and the pressing sleeve (9); the outer cover of the third threaded pipe (8) is provided with an outer sleeve (11), and an elastic gasket (12) opposite to the elastic expansion sleeve (10) is fixed on the inner wall of the outer sleeve (11);
two ends of the elastic expansion sleeve (10) are provided with convex clamping rings (1001), and the inner wall of the elastic expansion sleeve (10) is provided with an arc-shaped groove (1002); the end part of the third threaded pipe (8) is provided with an inner spigot matched with a clamping ring (1001) of the elastic expansion sleeve (10); the pressing sleeve (9) is arranged in the elastic expansion sleeve (10) in a penetrating mode, the inner end of the pressing sleeve (9) is fixedly arranged in the third threaded pipe (8) through threaded connection, a through groove (901) opposite to the arc groove (1002) of the elastic expansion sleeve (10) is formed in the middle of the pressing sleeve (9), and an inner spigot matched with the clamping ring (1001) of the elastic expansion sleeve (10) is arranged at the outer end of the pressing sleeve (9).
2. The medical device air tightness test apparatus according to claim 1, wherein: two ends of the hollow rotating shaft (2) are respectively connected with a support plate (13) through bearings, and the support plates (13) are fixed on the water tank (1) through bolts; the power device comprises a motor (14), and the motor (14) is connected with the hollow rotating shaft (2) through a chain wheel (15) and a transmission chain (16).
3. The medical device air tightness test apparatus according to claim 2, wherein: the side surface of the hollow rotary table (3) is fixedly provided with detection blocks (19) which are in one-to-one correspondence with the U-shaped brackets (5); a mounting plate (20) is fixed on the support plate (13), and a position sensor (21) opposite to the highest position detection block (19) is fixed on the mounting plate (20).
4. The medical device air tightness test apparatus according to claim 1, wherein: the hollow rotary table (3) comprises a cylinder body (301), and the circumferential surface of the cylinder body (301) is of a regular hexagon structure; two sides of the cylinder body (301) are connected with round sealing plates (302) through bolts; the center of the sealing plate (302) is provided with a hole, and the center hole of the sealing plate (302) is sleeved and fixed on the hollow rotating shaft (2).
5. The medical device air tightness test apparatus according to claim 1, wherein: and a stop valve (18) is arranged in the middle of the hollow rotating shaft (2).
6. The medical device air tightness test apparatus according to claim 1, wherein: external threads are formed in the first threaded pipe (6) and the third threaded pipe (8), internal threads are formed in the second threaded pipe (7), and two ends of the second threaded pipe (7) are fixed with the first threaded pipe (6) and the third threaded pipe (8) through threaded connection.
7. The medical device air tightness test apparatus according to claim 1, wherein: an inner hexagonal counter bore is formed in the outer end of the pressing sleeve (9).
8. The medical device air tightness test apparatus according to claim 1, wherein: the end part of the outer sleeve (11) is provided with an inner edge (1101) extending inwards, and the inner edge (1101) is sleeved on the third threaded pipe (8); the third threaded tube (8) has a shoulder (801) pressed against the inner edge (1101).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310112850.XA CN115824514B (en) | 2023-02-15 | 2023-02-15 | Medical instrument gas tightness testing arrangement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310112850.XA CN115824514B (en) | 2023-02-15 | 2023-02-15 | Medical instrument gas tightness testing arrangement |
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| CN115824514A CN115824514A (en) | 2023-03-21 |
| CN115824514B true CN115824514B (en) | 2023-05-05 |
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| CN202310112850.XA Active CN115824514B (en) | 2023-02-15 | 2023-02-15 | Medical instrument gas tightness testing arrangement |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN117091761B (en) * | 2023-10-19 | 2023-12-26 | 欧莱特医疗科技(无锡)股份有限公司 | Special airtight check out test set of medical nasal catheter |
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| CN216201582U (en) * | 2021-10-20 | 2022-04-05 | 广东电安新材料科技有限公司 | Pipe stopper |
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| US3958607A (en) * | 1974-08-29 | 1976-05-25 | The Penetryn System, Inc. | Apparatus for sealing pipe leaks |
| US5901752A (en) * | 1998-06-05 | 1999-05-11 | Lundman; Philip L. | Inflatable apparatus for sealing a pipeline |
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| CN210664913U (en) * | 2019-11-26 | 2020-06-02 | 常熟市盈丰钢管有限公司 | Steel pipe air tightness test device |
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| CN115824514A (en) | 2023-03-21 |
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