CN114306782B - Bubble detection end face sealing testing device - Google Patents
Bubble detection end face sealing testing device Download PDFInfo
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- CN114306782B CN114306782B CN202111607443.3A CN202111607443A CN114306782B CN 114306782 B CN114306782 B CN 114306782B CN 202111607443 A CN202111607443 A CN 202111607443A CN 114306782 B CN114306782 B CN 114306782B
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- 238000007789 sealing Methods 0.000 title claims abstract description 71
- 238000001514 detection method Methods 0.000 title claims abstract description 35
- 238000012360 testing method Methods 0.000 title claims abstract description 30
- 238000004891 communication Methods 0.000 claims description 8
- 238000005259 measurement Methods 0.000 abstract description 20
- 238000000502 dialysis Methods 0.000 abstract description 16
- 239000008280 blood Substances 0.000 description 8
- 210000004369 blood Anatomy 0.000 description 8
- 238000009434 installation Methods 0.000 description 5
- 238000013461 design Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 2
- DDRJAANPRJIHGJ-UHFFFAOYSA-N creatinine Chemical compound CN1CC(=O)NC1=N DDRJAANPRJIHGJ-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 206010001526 Air embolism Diseases 0.000 description 1
- 208000019901 Anxiety disease Diseases 0.000 description 1
- 206010016717 Fistula Diseases 0.000 description 1
- LEHOTFFKMJEONL-UHFFFAOYSA-N Uric Acid Chemical compound N1C(=O)NC(=O)C2=C1NC(=O)N2 LEHOTFFKMJEONL-UHFFFAOYSA-N 0.000 description 1
- TVWHNULVHGKJHS-UHFFFAOYSA-N Uric acid Natural products N1C(=O)NC(=O)C2NC(=O)NC21 TVWHNULVHGKJHS-UHFFFAOYSA-N 0.000 description 1
- 230000036506 anxiety Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000004202 carbamide Substances 0.000 description 1
- 229940109239 creatinine Drugs 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000003890 fistula Effects 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 210000003734 kidney Anatomy 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 239000000047 product Substances 0.000 description 1
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- 230000000630 rising effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
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- 239000003440 toxic substance Substances 0.000 description 1
- 229940045136 urea Drugs 0.000 description 1
- 229940116269 uric acid Drugs 0.000 description 1
Abstract
The invention provides a closed testing device for a bubble detection end face, and belongs to the technical field of medical detection equipment. According to the invention, the plugs in the end face sealing assembly move in the concave cavity communicated with the first channel and the second channel, so that the cutting-off of the first channel and the second channel can be performed along the cross section of the concave cavity, the problem that the pipeline is deformed due to the fact that the plugs directly act on the first channel or the second channel is avoided, meanwhile, the measuring assembly is arranged at the side of the first channel or the side of the second channel and is calculated from the joint of the first channel or the second channel and the concave cavity, the starting point of the bubble length in the circulating pipeline is ensured to be consistent with the initial scale of the measuring assembly, accurate measurement of the bubble length in the circulating pipeline is realized, accurate parameters are provided for calculating the air volume, the accuracy of air quantity measurement is ensured, the safety of the dialysis machine is ensured, the conditions are provided for guaranteeing the product quality, and the safe use in the later stage of the dialysis machine is facilitated.
Description
Technical Field
The invention relates to the technical field of medical detection equipment, in particular to a closed testing device for a bubble detection end face.
Background
As an extracorporeal medical device for replacing normal human kidney, the dialysis machine can diffuse toxic substances with high degree of anxiety such as urea, creatinine, uric acid and the like in the blood of a patient into the dialysate, and supplement necessary ions from the dialysate into the blood, thereby achieving the purpose of purifying the blood.
However, in the actual use process, negative pressure exists between the fistula needle head and the pump due to the use of the blood pump, so that air enters the circulation pipeline, such as air leakage at the needle head, air leakage at the joint of the needle head and the blood pump, and the like, so that the risk of air embolism caused by air mixing into blood is seriously threatened to the life safety of a patient, and therefore, reasonable detection of the air quantity mixed in the use process of the dialysis machine becomes an important point of industrial research.
At present, the testing device on the market mainly realizes cutting off the circulating pipeline through the cooperation of the blood clamp and the hose, namely when detecting the bubble, the blood clamp is closed to press the hose to realize loop cutting off, and then the air quantity is measured, so that the quantity of mixed air in the use process of the dialysis machine is obtained, the performance of the dialysis machine is detected, and the safety of the dialysis machine is ensured.
Disclosure of Invention
To the above-mentioned problem that exists among the prior art, at present aim at providing a bubble detects terminal surface and seals testing arrangement to set up terminal surface seal assembly and measurement subassembly, realize the direct of cross section to one of them department of circulation pipeline through the terminal surface seal assembly and cut, can not appear the pipeline deformation problem, simultaneously, the cooperation measurement subassembly directly carries out bubble length detection, obtains the air volume, has guaranteed the accuracy of air volume measurement, thereby has guaranteed the security of the dialysis machine that detects, has guaranteed the quality, does benefit to the safe handling in later stage.
The specific technical scheme is as follows:
a bubble detecting end closure test device having the features comprising:
the end face sealing assembly comprises a sealing seat and a linear driver, the sealing seat is provided with a concave cavity with an opening, a first channel communicated with the outside is formed in the sealing seat and positioned at the bottom of the concave cavity, meanwhile, a second channel communicated with the outside is formed in the sealing seat and positioned on the side wall of the concave cavity, the second channel is positioned on one side of the concave cavity close to the bottom of the cavity, the first channel is communicated with the second channel through the concave cavity, the linear driver is arranged on the sealing seat and positioned at one end of the opening of the concave cavity, a telescopic shaft of the linear driver stretches into the concave cavity from the opening, and a plug is arranged at one end of the telescopic shaft stretching into the concave cavity and moves towards the direction away from or close to the bottom of the concave cavity;
the measuring assembly is a graduated scale, the graduated scale is arranged along the axial direction of the first channel or the second channel, and the initial graduation of the graduated scale is aligned with the communication position of the first channel or the second channel and the concave cavity.
The bubble detection end face sealing testing device comprises a cavity, wherein the cavity is arranged in the vertical direction, an opening of the cavity is located above the cavity bottom of the cavity, a first channel is arranged in the vertical direction, and a second channel is arranged in the horizontal direction.
The bubble detection end face sealing testing device is characterized in that the arrangement direction of the graduated scale and the first channel is identical, and the initial graduation of the graduated scale is flush with the cavity bottom of the concave cavity.
The air bubble detection end face sealing testing device comprises a first channel, a second channel, a concave cavity and a sealing device.
The air bubble detection end face sealing testing device further comprises an inlet pipe and an outlet pipe, wherein the inlet pipe is inserted into one end of the first channel communicated with the outside, the outlet pipe is inserted into one end of the second channel communicated with the outside, and the inner diameter of the inlet pipe is consistent with the size of one end of the first channel with small inner diameter.
The air bubble detection end face sealing testing device is characterized in that the linear driver is an electromagnetic linear driver.
The utility model provides a foretell closed testing arrangement of bubble detection terminal surface, wherein, the telescopic shaft is "cross" font and arranges, including removing the post, sealing disk and erection column, remove post, sealing disk and erection column structure as an organic whole, it is the drive shaft of linear actuator to remove the post, the sealing disk is located and removes the post and stretches into one end in the cavity, the erection column is located one side that the sealing disk deviates from the removal post and stands out in sealing disk arrangement, the end cap is installed on the erection column and is supported on the sealing disk, and the cross section of end cap is greater than the internal diameter of first passageway, and the cross section size of erection column is less than the internal diameter of first passageway.
The bubble detection end face sealing testing device comprises a sealing disc, wherein a ring-shaped sealing groove is formed in the outer side wall of the sealing disc, a sealing ring is arranged in the sealing groove, and the outer side of the sealing ring abuts against the cavity side wall of the concave cavity.
The utility model provides a foretell closed testing arrangement of bubble detection terminal surface, wherein, still includes the mounting bracket, and the mounting bracket includes mounting panel and a plurality of mount pad, and the mounting panel is the strip shaped plate, and one side of mounting panel is provided with a plurality of mount pads along the length direction interval of mounting panel to, all can selectively install a terminal surface closure assembly and a measurement assembly rather than corresponding on each mount pad.
The technical scheme has the positive effects that:
according to the bubble detection end face sealing testing device, through the matching of the concave cavity in the end face sealing assembly and the plug, the cross section of the circulating pipeline at the cavity bottom of the concave cavity is cut off directly, the plug does not directly act on the first channel or the second channel, so that the deformation problem of the pipeline is avoided, meanwhile, the measurement assembly directly starts to calculate from the communication position of the first channel or the second channel communicated with the concave cavity, the accurate detection of the bubble length in the pipeline is realized, the more accurate air volume is obtained, the accuracy of air quantity measurement is improved, the safety of the detected dialysis machine is guaranteed, the quality of the dialysis machine is guaranteed, and the later safe use is facilitated.
Drawings
FIG. 1 is a block diagram of an embodiment of a bubble detection end closure test apparatus of the present invention;
FIG. 2 is a cross-sectional view of an end closure assembly according to a preferred embodiment of the present invention;
fig. 3 is a structural view of a telescopic shaft according to a preferred embodiment of the present invention.
In the accompanying drawings: 1. an end face closure assembly; 11. a plugging seat; 12. a linear driver; 111. a cavity; 112. a first channel; 113. a second channel; 121. a telescopic shaft; 122. a plug; 1211. a moving column; 1212. a sealing plate; 1213. a mounting column; 1212a, a seal groove; 2. a measurement assembly; 3. an inlet tube; 4. a discharge pipe; 5. a seal ring; 6. a mounting frame; 61. a mounting plate; 62. and (5) a mounting seat.
Detailed Description
In order to make the technical means, the creation features, the achievement of the purposes and the effects of the present invention easy to understand, the following embodiments specifically describe the technical solution provided by the present invention with reference to fig. 1 to 3, but the following disclosure is not limited to the present invention.
FIG. 1 is a block diagram of an embodiment of a bubble detection end closure test apparatus of the present invention; FIG. 2 is a cross-sectional view of an end closure assembly according to a preferred embodiment of the present invention. As shown in fig. 1 and 2, the device for testing the closure of the end face of the air bubble detection provided in this embodiment includes: the end face seal assembly 1 and the measuring assembly 2, the measuring assembly 2 is arranged beside the end face seal assembly 1 and is used for measuring the length of bubbles in the end face seal assembly 1.
Specifically, the end face sealing assembly 1 further comprises a sealing seat 11 and a linear driver 12, and the linear driver 12 acts on the sealing seat 11 to open or cut off the circulation pipeline. At this time, the plugging seat 11 has a cavity 111 with an opening, preferably, the cavity 111 is a cylindrical cavity, which is convenient for processing and subsequent sealing. And set up the first passageway 112 of intercommunication external world on shutoff seat 11 and lie in the chamber bottom of cavity 111, simultaneously, set up the second passageway 113 of intercommunication external world on shutoff seat 11 and lie in the chamber lateral wall of cavity 111, realized the entering and the discharge of dialysate in the cavity 111 through first passageway 112 and second passageway 113, and, second passageway 113 lies in the one side that is close to the chamber bottom on the cavity 111 for first passageway 112 and second passageway 113 can both keep away from the opening of cavity 111, provide the space of dodging for the removal of follow-up end cap 122. And, the first channel 112 and the second channel 113 are communicated through the cavity 111, namely, the first channel 112 and the second channel 113 are communicated through the cavity 111 in series, so that the blocking and the communication between the first channel 112 and the second channel 113 can be realized when the subsequent plug 122 moves in the cavity 111, and conditions are provided for the subsequent air quantity detection.
In addition, the linear driver 12 is disposed on the plugging seat 11 and is located at one end of the opening of the cavity 111, and the telescopic shaft 121 of the linear driver 12 extends into the cavity 111 from the opening, that is, the telescopic shaft 121 of the linear driver 12 enters into the cavity 111 through the opening of the cavity 111 and moves in the cavity 111 to provide a structural basis, meanwhile, one end of the telescopic shaft 121 extending into the cavity 111 is provided with the plug 122, and the plug 122 moves towards a direction away from or close to the cavity bottom of the cavity 111, that is, the telescopic shaft 121 of the linear driver 12 can drive the plug 122 to be close to the cavity bottom of the cavity 111, so that the plug 122 plugs the first channel 112, or the plug 122 is far away from the cavity bottom of the cavity 111, so that the plug 122 opens the first channel 112, thereby realizing the control of communication or cutoff of the first channel 112 and the second channel 113, and controlling the flow or stop of dialysate in the circulation pipeline, and providing conditions for the subsequent realization of the measurement of the bubble length. In addition, the plug 122 directly acts on the cavity bottom of the concave cavity 111 to realize the contact between the cross section and the cross section, and the plug 122 does not directly act on the first channel 112 or the second channel 113, so that the problem of inaccurate measurement caused by deformation of the first channel 112 or the second channel 113 is avoided, and the structural design is more reasonable.
Specifically, the measuring assembly 2 is a graduated scale, at this time, the graduated scale is arranged along the axial direction of the first channel 112 or the second channel 113, so that the length direction of the graduated scale is consistent with the length direction of the first channel 112 or the second channel 113, and the initial graduation of the graduated scale aligns with the communication position between the first channel 112 or the second channel 113 and the cavity 111, so that the air quantity is calculated by measuring the length of the air bubble and combining the inner diameter of the first channel 112 or the second channel 113 when the air quantity is measured later, and the air quantity is detected, thereby providing conditions for ensuring the safety of the dialysis machine when the dialysis machine is used. In addition, the initial scale of the scale is aligned with the communication position of the first channel 112 or the second channel 113 and the concave cavity 111, so that the measurement accuracy is ensured, the accuracy of the detection result is further improved, and the structural design is more reasonable.
More specifically, the cavity 111 is arranged in the vertical direction, and the opening of the cavity 111 is located above the cavity bottom, i.e. the linear driver 12 is located at the top, so that the risk of the dialysate entering the linear driver 12 after accidental leakage is reduced, and the safety is higher. In addition, the first channels 112 are arranged along the vertical direction, and the second channels 113 are arranged along the horizontal direction, so that at least one vertically arranged channel is provided, conditions are provided for detecting bubbles in subsequent dialysate after floating upwards and concentrating, and the accuracy of detection is further improved.
More specifically, the arrangement direction of the graduated scale and the first channel 112 is consistent, the immediate degree scale is also arranged along the vertical direction, so that the arrangement direction of the graduated scale is consistent with the floating direction of the subsequent bubbles, meanwhile, the initial scale of the graduated scale is flush with the cavity bottom of the cavity 111, the initial scale of the immediate degree scale is just flush with the surface plugged by the plug 122, and the initial scale of the immediate degree scale is flush with the highest rising position of the bubbles, so that the detection accuracy is further ensured.
More specifically, the first channel 112 and the second channel 113 are both in a stepped hole structure, and the inner diameter of one end of the first channel 112 and the second channel 113, which are communicated with the cavity 111, is smaller than the inner diameter of one end of the first channel 112 and the second channel 113, which are communicated with the outside, so that one end of the first channel 112 and the second channel 113, which are communicated with the outside, are both in a flaring structure, conditions are provided for the subsequent installation of the connecting pipeline and the maintenance of the consistency of the inner diameter of the connecting pipeline with the inner diameter of the end of the first channel 112 or the second channel 113, which is smaller than the inner diameter of the end of the connecting pipeline, thereby further ensuring the measurement accuracy.
More specifically, the plugging seat 11 is provided with the inlet pipe 3 and the outlet pipe 4, at this time, the inlet pipe 3 is inserted into one end of the first channel 112, which is communicated with the outside, and the outlet pipe 4 is inserted into one end of the second channel 113, which is communicated with the outside, i.e. the dialysate in the inlet pipe 3 flows to the first channel 112 and enters the cavity 111 through the first channel 112, and the dialysate in the cavity 111 can enter the outlet pipe 4 through the second channel 113, so that conditions are provided for the subsequent formation of the circulation pipeline of the dialysis machine. And, the internal diameter of intake pipe 3 is unanimous with the size of the little one end of internal diameter of first passageway 112, promptly after intake pipe 3 installs in first passageway 112, the internal diameter of intake pipe 3 is unanimous with the internal diameter of the one end of the internal diameter round pin of first passageway 112, promptly through the extension of the internal diameter of intake pipe 3 the little one end of first passageway 112 has been realized to guaranteed the uniformity of internal diameter, still can accurately carry out the direct measurement through the scale for even the bubble is in intake pipe 3 in the follow-up, further guaranteed the accuracy of measurement, structural design is more reasonable.
More specifically, the linear driver 12 is an electromagnetic linear driver 12, preferably, the linear driver 12 includes a coil, an armature, a telescopic shaft 121 and a housing, the armature is mounted on one end of the telescopic shaft 121 deviating from and extending into the cavity 111, the coil is arranged outside the armature, and the coil is wrapped by the housing, so that the armature can drive the telescopic shaft 121 to move in the coil under the condition that the coil is electrified, thereby meeting the use requirement that the plug 122 is opened or blocked in the first channel 112, and the linear driver is simple in structure and convenient to control. It should be noted that the linear actuator 12 includes, but is not limited to, the above-described structure, and other structures that are the same or similar are within the scope of the present embodiment.
Fig. 3 is a structural view of a telescopic shaft according to a preferred embodiment of the present invention. As shown in fig. 2 and 3, the longitudinal section of the telescopic shaft 121 of the linear actuator 12 is arranged in a cross shape, at this time, the telescopic shaft 121 includes a moving post 1211, a sealing disk 1212 and a mounting post 1213, and the moving post 1211, the sealing disk 1212 and the mounting post 1213 are integrally constructed, so that the structural strength of the telescopic shaft 121 is ensured, and the processing is also facilitated. In addition, the moving post 1211 is a driving shaft of the linear driver 12, that is, the moving post 1211 is a driving executing structure, and the sealing disc 1212 is located at an end of the moving post 1211 extending into the cavity 111, and the mounting post 1213 is located at a side of the sealing disc 1212 facing away from the moving post 1211 and protruding from the sealing disc 1212, so as to provide a fixed base for mounting the subsequent plug 122. Preferably, the cross section of the sealing disk 1212 is larger than the cross section of the moving post 1211 and the mounting post 1213, i.e., a protrusion is formed by the sealing disk 1212, and the plug 122 is mounted on the mounting post 1213 and abuts against the sealing disk 1212, i.e., an abutment basis is provided for the mounting of the read head on the mounting post 1213 by the sealing disk 1212, ensuring that the subsequent plug 122 is compressed when compressed on the first channel 112. And, the cross section of the plug 122 is greater than the inner diameter of the first channel 112, meanwhile, the cross section size of the mounting post 1213 is smaller than the inner diameter of the first channel 112, namely, the mounting post 1213 does not contact the cavity bottom of the cavity 111, so that the structure of the opening edge which contacts the cavity bottom of the cavity 111 and abuts against the first channel 112 is the plug 122, the problem of insufficient tightness caused by rigid contact of the mounting post 1213 with the cavity bottom of the cavity 111 is avoided, the reliability of the plug 122 for sealing the first channel 112 is improved, the accuracy of the subsequent bubble length detection is improved, and the structural design is more reasonable.
More specifically, a circle of annular sealing groove 1212a is formed in the outer side wall of the sealing disc 1212, meanwhile, a sealing ring 5 is arranged in the sealing groove 1212a, the outer side of the sealing ring 5 is propped against the cavity side wall of the cavity 111, namely, the sealing groove 1212a is used for limiting the sealing ring 5, the problem that the sealing ring 5 falls off when the telescopic shaft 121 moves is solved, the structural stability is higher, the sealing between the telescopic shaft 121 and the cavity side wall of the cavity 111 is realized through the sealing ring 5, the problem that dialysate in the cavity 111 leaks from the cavity 111 is solved, and the safety guarantee is higher.
More specifically, the end closure assembly 1 and the measurement assembly 2 are mounted on a mounting frame 6. At this time, mounting bracket 6 includes mounting panel 61 and a plurality of installation station again, mounting panel 61 is the strip shaped plate for mounting panel 61 has certain length, simultaneously, one side of mounting panel 61 is provided with a plurality of installation stations along the length direction interval of mounting panel 61, make the installation station on the mounting panel 61 more, and, all can selectively install an end face seal assembly 1 and a measurement subassembly 2 on each installation station, with an end face seal assembly 1 and its corresponding measurement subassembly 2 be a set of testing arrangement, can realize multiunit testing arrangement's side by side through mounting bracket 6 promptly, can realize the function expansion, satisfy the synchronous detection of many dialysis machines, the structural adaptability is higher.
As a preferred embodiment, a vibrator may be installed on the inlet pipe 3, so that the air bubble may be floated up by the vibrator after the first passage 112 is closed by the stopper 122 and when the air bubble is not completely lifted to the highest position, thereby ensuring the accuracy of the air bubble length detection. It should be noted that, in the case that the vibrator is not mounted on the inlet pipe 3, the inlet pipe 3 may be manually vibrated, and the purpose of floating the air bubbles may be achieved as well.
The air bubble detection end face sealing test device provided by the embodiment comprises an end face sealing assembly 1 and a measuring assembly 2; the plug 122 in the end face sealing assembly 1 moves in the concave cavity 111 communicated with the first channel 112 and the second channel 113, so that the cutting-off of the first channel 112 and the second channel 113 can be performed in the concave cavity 111 along the cross section of the concave cavity, the problem that the pipeline is deformed due to the fact that the plug 122 directly acts on the first channel 112 or the second channel 113 is avoided, meanwhile, the measuring assembly 2 is arranged beside the first channel 112 or the second channel 113 and is calculated from the connecting position of the first channel and the second channel and the concave cavity 111, the starting point of the bubble length in the circulating pipeline is guaranteed to be consistent with the initial scale of the measuring assembly 2, accurate measurement of the bubble length in the circulating pipeline is achieved, accurate parameters are provided for calculating the air volume, accuracy of air quantity measurement is guaranteed, safety of a dialysis machine is guaranteed, conditions are provided for guaranteeing the quality of products, and safe use in the later period of the dialysis machine is facilitated.
The foregoing is merely illustrative of the preferred embodiments of the present invention and is not intended to limit the embodiments and scope of the present invention, and it should be appreciated by those skilled in the art that equivalent substitutions and obvious variations may be made using the description and illustrations of the present invention, and are intended to be included in the scope of the present invention.
Claims (8)
1. The utility model provides a bubble detects terminal surface closure testing arrangement which characterized in that includes:
the end face sealing assembly comprises a sealing seat and a linear driver, wherein the sealing seat is provided with a concave cavity with an opening, a first channel communicated with the outside is formed in the sealing seat and positioned at the bottom of the concave cavity, meanwhile, a second channel communicated with the outside is formed in the sealing seat and positioned on the side wall of the concave cavity, the second channel is positioned on one side of the concave cavity close to the bottom of the cavity, the first channel and the second channel are communicated through the concave cavity, the linear driver is arranged on the sealing seat and positioned at one end of the opening of the concave cavity, a telescopic shaft of the linear driver stretches into the concave cavity from the opening, and a plug is arranged at one end of the telescopic shaft stretching into the concave cavity and moves towards the direction away from or close to the bottom of the concave cavity so that the first channel and the second channel are communicated or cut off;
the measuring assembly is a graduated scale, the graduated scale is arranged along the axial direction of the first channel or the second channel, and the initial graduation of the graduated scale is aligned with the communication position of the first channel and the concave cavity or the communication position of the second channel and the concave cavity;
the cavity is arranged in the vertical direction, the opening of the cavity is positioned above the cavity bottom of the cavity, the first channel is arranged in the vertical direction, and the second channel is arranged in the horizontal direction.
2. The bubble detection end face seal testing device according to claim 1, wherein the graduation scale is aligned with the arrangement direction of the first channel, and the starting graduation of the graduation scale is flush with the cavity bottom of the cavity.
3. The bubble detection end face seal testing device according to claim 1, wherein the first channel and the second channel are of a stepped hole structure, and the inner diameter of one end of the first channel and the second channel, which is communicated with the concave cavity, is smaller than the inner diameter of one end of the second channel, which is communicated with the outside.
4. The bubble detecting end face seal testing device according to claim 3, further comprising an inlet pipe and an outlet pipe, wherein the inlet pipe is inserted into an end of the first passage which communicates with the outside, the outlet pipe is inserted into an end of the second passage which communicates with the outside, and an inner diameter of the inlet pipe is identical to a size of an end of the first passage which has a smaller inner diameter.
5. The bubble detection end face seal testing device according to claim 1, wherein the linear actuator is an electromagnetic linear actuator.
6. The bubble detection end face sealing test device according to claim 1, wherein the telescopic shaft is arranged in a cross shape and comprises a moving column, a sealing disc and a mounting column, the moving column, the sealing disc and the mounting column are of an integrated structure, the moving column is a driving shaft of the linear driver, the sealing disc is located at one end of the moving column extending into the concave cavity, the mounting column is located at one side of the sealing disc, which is away from the moving column, and protrudes from the sealing disc, the plug is mounted on the mounting column and abuts against the sealing disc, the cross section of the plug is larger than the inner diameter of the first channel, and the cross section size of the mounting column is smaller than the inner diameter of the first channel.
7. The bubble detection end face seal testing device according to claim 6, wherein a ring-shaped seal groove is formed in the outer side wall of the seal disc, a seal ring is arranged in the seal groove, and the outer side of the seal ring abuts against the cavity side wall of the concave cavity.
8. The bubble detection end face seal testing device according to claim 1, further comprising a mounting frame, wherein the mounting frame comprises a mounting plate and a plurality of mounting seats, the mounting plate is a strip-shaped plate, a plurality of mounting seats are arranged on one side of the mounting plate at intervals along the length direction of the mounting plate, and each mounting seat can be selectively provided with one end face seal assembly and one measuring assembly corresponding to the end face seal assembly.
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| CN202111607443.3A CN114306782B (en) | 2021-12-27 | 2021-12-27 | Bubble detection end face sealing testing device |
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| CN202111607443.3A CN114306782B (en) | 2021-12-27 | 2021-12-27 | Bubble detection end face sealing testing device |
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