CN113944808B

CN113944808B - Sealing device for wall-penetrating pipe fitting in biosafety laboratory

Info

Publication number: CN113944808B
Application number: CN202111302676.2A
Authority: CN
Inventors: 汤华山; 邹靖; 金凤银
Original assignee: Wuhan Institute of Virology of CAS
Current assignee: Wuhan Institute of Virology of CAS
Priority date: 2021-11-04
Filing date: 2021-11-04
Publication date: 2022-06-17
Anticipated expiration: 2041-11-04
Also published as: CN113944808A

Abstract

The invention provides a sealing device for a wall-penetrating pipe fitting in a biological safety laboratory, and belongs to the technical field of sealing of wall-penetrating pipe fittings. The device includes the base, and the base is hollow out construction, and the cavity has still been seted up to the inside of base, and it has the inoxidizing coating to peg graft in the inside of cavity, and the inoxidizing coating is memory metal net, and the inside of base still fixedly connected with sealing tube. The device cup joints the split type sealed tube of two punishments in the outside of connecting pipe through the laminating between the clamping jaw of two punishments to cover and sealed operation the pipe fitting, effectively ensured the security and the reliability of the inside pipe fitting of sealed section of thick bamboo.

Description

Sealing device for wall-penetrating pipe fitting in biosafety laboratory

Technical Field

The invention belongs to the technical field of through-wall pipe fitting sealing, and particularly relates to a sealing device for a through-wall pipe fitting in a biological safety laboratory.

Background

The biological safety laboratory is divided into a first Level (BSL-1), a second Level (BSL-2), a third Level (BSL-3) and a fourth Level (BSL-4) according to the biological safety protection Level of the laboratory; ABSL-1, ABSL-2, ABSL-3 and ABSL-4 respectively represent the biosafety level of laboratories engaged in live animal operations. The high-grade Biosafety laboratory refers to a laboratory with three-grade and four-grade Biosafety protection grades, and is used for developing scientific research on high-pathogenic microorganisms with 3-grade and 4-grade risks (recognized as first-class and second-class pathogenic microorganisms domestically) internationally [ World Health organization.laboratory Biosafety Manual [ M ]3rd edition. geneva,2004 ]. The high-grade biosafety laboratory is required to meet GB19489-2008 laboratory biosafety general requirements and GB50346-2011 biosafety laboratory building technical specifications in terms of hardware construction, physical protection facilities and equipment are used for strictly controlling the possibility that high-risk pathogens are diffused to the external environment along with human flow, logistics, water flow and air flow, and the personnel infection incidence rate and the environmental pollution incidence rate are reduced to zero.

The pipe fitting through-wall sealing equipment is a sealing device for a through-wall pipeline, and in a high-grade biological safety laboratory, an upper water pipe, a lower water pipe, an air pipe, a cable pipeline, an air conditioning pipe and the like which penetrate through a biological protection barrier need to be sealed so as to effectively prevent infectious pathogens from being released into the environment and provide reliable biological safety guarantee for laboratory researchers. However, with regard to the existing sealing device, when the pipe is sealed, a plurality of protective layers are mostly sleeved outside the pipe to protect the pipe, and when the pipe is buried inside the wall, the pipe and the inside of the pipe are difficult to be effectively protected, and because the pipe is buried inside the wall, the pipe needs to be expanded to maintain and replace the pipe when the pipe is maintained inside the wall, and further, the work inconvenience caused by the replacement is caused.

Disclosure of Invention

In view of the above, an object of the present invention is to provide a sealing device for a wall-penetrating pipe in a biosafety laboratory, which can effectively ensure the safety and reliability of the pipe inside a sealing cylinder.

In order to achieve the above technical object, the present invention provides a sealing device for a wall-penetrating pipe fitting in a biosafety laboratory, the sealing device comprising: the base, the base is hollow out construction, and the cavity has still been seted up to the inside of base, it has the inoxidizing coating to peg graft in the inside of cavity, the inoxidizing coating is the memory metal net, the outside of inoxidizing coating still is linear array and has seted up logical groove, and the inside of base still fixedly connected with sealing barrel, sealing barrel is inside hollow structure, and sealing barrel's outer peripheral face contacts with the inner wall of base, the equal fixedly connected with mounting panel in the inside left and right sides of sealing barrel, wherein every two vertical adjacent mounting panels of department are a set of, and the inboard of every mounting panel of group still rotates and is connected with the carousel.

Further preferably, the connecting pipe is used for connecting a sealing pipe, a guide rail is fixedly connected to the top end of the interior of the sealing barrel, a through groove is formed in the bottom end of the guide rail, a pull rod is slidably connected to the interior of the guide rail, and the pull rod protrudes out of the sealing plate located on the front side.

Further preferably, the rear side of the bottom end surface of the pull rod is also fixedly connected with a guide block, the guide block is slidably connected in the guide rail, the bottom end surface of the guide block is fixedly connected with a crushing sleeve, the crushing sleeve is of a conical structure with a blade, and the crushing sleeve is used for crushing the sealing tube.

Preferably, the sealing cylinder is of a cylinder structure, the front side surface and the rear side surface of the sealing cylinder are fixedly connected with sealing plates, the connecting pipes are further mounted in the center positions of the two sealing plates, and the connecting pipes and the sealing plates are of a through structure.

Further preferably, the bottom end of the inside of the sealing cylinder is fixedly connected with a partition plate, a motor is installed on the lower side of the partition plate, a transmission shaft is further arranged on one side of the motor, penetrates through the partition plate and protrudes out of the partition plate, and a fluted disc is further installed on the outer side of the transmission shaft.

Further preferably, the crushing sleeve is sleeved at the outer side of the connecting pipe in a normal state, adjusting boxes are fixedly connected to the left side and the right side of the inside of the sealing barrel, one sides of the two adjusting boxes facing the guide block are of a through structure, and magnetic blocks are mounted in the two adjusting boxes through return springs.

Further preferably, the left side and the right side of the upper end of the fluted disc are respectively meshed with a helical gear, the outer side of the helical gear positioned on the left side is sequentially connected with a bevel gear set A and a bevel gear set B in a transmission manner, the outer side of the helical gear positioned on the right side is also provided with the bevel gear set B, and the bevel gear set A and the bevel gear set B are both connected with the turntable.

Further preferably, the inside of carousel still articulates there is the guide arm, still installs the clamping jaw in the one end of guide arm, and the clamping jaw is used for spacing sealed tube to the heating rod is still installed to the inboard of every two vertical adjacent clamping jaws, and the inside of heating rod is provided with the heater strip, and carousel and guide arm and clamping jaw all are equipped with the four places, and wherein every two vertical adjacent carousel of department and guide arm and clamping jaw are a set of, and two sets of carousels and guide arm and clamping jaw are located the inside left and right sides of sealed section of thick bamboo respectively, and two sets of carousels and guide arm and clamping jaw are opposite direction dislocation installation.

The sealing device for the wall-penetrating pipe fitting provided by the invention is provided with the fluted disc driven by the motor, when the fluted disc rotates, the fluted disc is in transmission connection with the bevel gear group A and the bevel gear group B to drive the two turntables to synchronously and reversely rotate, the two split sealing pipes are sleeved on the outer sides of the connecting pipes through the adhesion between the two clamping jaws, and the pipe fitting is covered and sealed, so that the operation of automatically sealing the pipeline in the wall body is achieved, and the purpose of being more practical is further achieved.

In addition, the protective layer is inserted in the cavity arranged in the base, and the protective layer is of a memory metal structure, so that the protective layer can support and protect the base after being assembled in the base, and can also perform self-adaptive reset adjustment work through the protective layer of the memory metal structure after being extruded in a small range, and further has practicability.

In addition, when installing the sealed tube of installing in sealed section of thick bamboo inside and appearing ageing damaged need change, can at first come the spacing of magnetic block to the guide block to relieve through the attraction of outside magnetic path to the magnetic block to drive broken cover and move forward through dragging the pull rod of sliding connection in the guide rail is inside, the motion through broken cover comes to carry out autonomic breakage to the sealed tube of installing in the connecting pipe outside and clears away the operation, and then reaches more practical purpose.

Drawings

FIG. 1 is a front side view of a sealing device according to an embodiment of the present invention, partially in half-section and in a disassembled state;

FIG. 2 is a schematic top side view of a sealing device according to an embodiment of the invention in a partially sectioned and disassembled state;

FIG. 3 is a schematic view showing an assembled structure of a sealing apparatus according to an embodiment of the present invention;

FIG. 4 shows a schematic base-to-shield display structure of a seal according to an embodiment of the invention;

FIG. 5 illustrates a mounting plate to gland packing display configuration of a sealing apparatus according to an embodiment of the present invention;

FIG. 6 shows a motor-to-bevel gear set B display structure schematic of a seal arrangement according to an embodiment of the present invention;

FIG. 7 shows an enlarged schematic view at A of FIG. 2 of a sealing device according to an embodiment of the invention;

FIG. 8 is an enlarged schematic view at B of FIG. 2 of a sealing device according to an embodiment of the present invention;

reference numerals are as follows: 1. a base; 2. a protective layer; 3. a sealing cylinder; 4. a sealing plate; 5. a guide rail; 6. a pull rod; 7. a guide block; 8. a crushing sleeve; 9. an adjusting box; 10. a magnetic block; 11. a return spring; 12. mounting a plate; 13. a turntable; 14. a guide bar; 15. a clamping jaw; 16. a heating rod; 17. a sealing tube; 18. a partition plate; 19. a motor; 20. a fluted disc; 21. a bevel gear set A; 22. a bevel gear set B; 23. and (4) connecting the pipes.

Detailed Description

In order to make the objects, aspects and advantages of the embodiments of the present invention more apparent, the embodiments of the present invention will be described in detail with reference to the accompanying drawings. Unless otherwise indicated, terms used herein have the ordinary meaning in the art. Like reference symbols in the various drawings indicate like elements.

The embodiment is as follows: please refer to fig. 1 to 8:

a sealing device for a wall-penetrating pipe fitting in a biosafety laboratory comprises a base 1, wherein the base 1 is of a hollow structure, a cavity is formed in the base 1, a protective layer 2 is inserted in the cavity, the protective layer 2 is a memory metal net, a sealing barrel 3 is fixedly connected in the base 1, mounting plates 12 are fixedly connected to the left side and the right side of the interior of the sealing barrel 3, every two longitudinally adjacent mounting plates 12 form a group, a rotary table 13 is rotatably connected to the inner side of each group of mounting plates 12, a guide rod 14 is hinged in the rotary table 13, a clamping jaw 15 is further mounted at one end of the guide rod 14, the clamping jaw 15 is used for limiting a sealing pipe 17, a heating rod 16 is further mounted on the inner side of every two longitudinally adjacent clamping jaws 15, heating wires are arranged in the heating rod 16, the rotary table 13, the guide rod 14 and the clamping jaw 15 are provided with four positions, every two longitudinally adjacent rotary tables 13, guide rod 14 and clamping jaw 15 form a group, and two groups of rotary tables 13, guide rods 14 and clamping jaws 15 are respectively positioned at the left side and the right side of the interior of the sealing cylinder 3, and the two groups of rotary tables 13, the guide rods 14 and the clamping jaws 15 are installed in a staggered mode in an opposite direction.

In addition, according to an embodiment of the present invention, as shown in fig. 1 to 4, the sealing cylinder 3 is a cylindrical structure, the sealing plates 4 are fixedly connected to both front and rear side surfaces of the sealing cylinder 3, the connecting pipe 23 is further installed at the central position inside the two sealing plates 4, the connecting pipe 23 and the sealing plate 4 are in a through structure, the connecting pipe 23 is used for connecting the sealing pipe 17, the guide rail 5 is further fixedly connected to the top end inside the sealing cylinder 3, the bottom end of the guide rail 5 is provided with a through groove, the guide rail 5 is further slidably connected to the inside of the guide rail 5, and the pull rod 6 protrudes from the sealing plate 4 located on the front side.

In addition, according to the embodiment of the present invention, as shown in fig. 1 to 6, a guide block 7 is further fixedly connected to a rear side of a bottom end surface of the pull rod 6, the guide block 7 is slidably connected in the guide rail 5, a crushing sleeve 8 is fixedly connected to the bottom end surface of the guide block 7, the crushing sleeve 8 is of a tapered structure with a blade, the crushing sleeve 8 is used for crushing a sealing tube 17, a partition plate 18 is fixedly connected to an inner bottom end of the sealing tube 3, a motor 19 is installed on a lower side of the partition plate 18, a transmission shaft is further provided on one side of the motor 19, the transmission shaft penetrates through the partition plate 18 and protrudes out of the partition plate 18, and a fluted disc 20 is further installed on an outer side of the transmission shaft.

In addition, according to the embodiment of the present invention, as shown in fig. 1 to 8, the crushing sleeve 8 is normally sleeved at an outer side position of the connecting pipe 23, the adjusting boxes 9 are fixedly connected to both left and right sides of the interior of the sealing cylinder 3, one sides of the two adjusting boxes 9 facing the guide block 7 are in a through structure, the magnetic blocks 10 are mounted in the two adjusting boxes 9 through the return springs 11, the helical gears are engaged with both left and right sides of the upper end of the toothed disc 20, the bevel gear set a21 and the bevel gear set B22 are sequentially connected to the outer sides of the helical gears on the left side, the bevel gear set B22 is further mounted on the outer sides of the helical gears on the right side, and the bevel gear set a21 and the bevel gear set B22 are both connected to the rotating disc 13.

The invention discloses a sealing method of a sealing device for a wall-penetrating pipe fitting in a biosafety laboratory, which comprises the following steps of:

1) a preset hole is formed in the wall body according to the specification of the device, and the base 1 fixedly connected with the sealing cylinder 3 in the wall body is arranged in the preset hole in the wall body;

2) a protective layer 2 with proper specification is arranged in a cavity formed in the base 1, and the protective layer 2 is of a memory metal structure;

3) by inserting the wire harness or the pipe member wrapped with the article into the inner position of the connecting pipe 23 installed inside the sealing plate 4 and by exposing most of the article such as the wire harness to the inner position of the sealing cylinder 3;

4) the motor 19 arranged at the bottom side of the partition plate 18 is started to drive the fluted disc 20 to rotate, and the fluted disc 20 is in transmission connection with the bevel gear set A21 and the bevel gear set B22 to drive two groups of rotating discs 13 arranged at the inner side of the mounting plate 12 to rotate and adjust;

5) when the clamping jaws 15 hinged on the outer side of the rotary table 13 through the guide rods 14 rotate to be in an inosculating state, the sealing tubes 17 pre-installed on the inner sides of the two clamping jaws 15 are contacted and re-covered to the outer side position of the pipeline;

6) finally, the electric heating wire inside the heating rod 16 is energized, and the sealing tube 17 fitted around the pipe and the outside of the connection tube 23 is welded and fixed.

The specific use mode and function of the embodiment are as follows: the base 1 fixedly connected with the sealing barrel 3 inside is arranged inside a hole which is formed in the wall in advance, the protective layer 2 with proper specification is arranged inside a cavity formed in the base 1, and the protective layer 2 is of a memory metal structure, so that after the protective layer is arranged inside the base 1, the stability of the base 1 can be effectively kept, and meanwhile, the self-adaptive reset adjustment can be realized when the protective layer is extruded in a small range, and the aim of being more practical is further fulfilled;

then, the wire harness or the pipe fitting wrapped with the object is inserted into the inner position of the connecting pipe 23 installed inside the sealing plate 4, most of the object such as the wire harness is exposed to the inner position of the sealing cylinder 3, at this time, two sealing pipes 17 of the split structure are welded to the outer position of the connecting pipe 23 in the sealing plate 4, which is located inside the sealing cylinder 3, at this time, the sealing pipe 17 is wrapped at the outer position of the pipeline inserted into the connecting pipe 23;

when the sealing pipe 17 sleeved outside the two connecting pipes 23 is broken or needs to be replaced, the magnetic block 10 installed inside the adjusting box 9 can be attracted at the other side of the wall by utilizing the two magnets, and the two magnetic blocks 10 are respectively diffracted outside the adjusting box 9 to be shifted, so that the magnetic block 10 can relieve the limit of the guide block 7 installed inside the guide rail 5;

at the moment, the guide block 7 is driven to move forwards by pulling the pull rod 6 arranged on the inner side of the guide rail 5, and when the guide block 7 moves forwards, the sealing pipe 17 sleeved on the outer side of the connecting pipe 23 is broken through the conical breaking sleeve 8 fixedly connected with the bottom end of the guide block 7, so that the cleaning operation of the waste or damaged sealing pipe 17 can be completed;

when the pipeline needs to be wrapped again and the sealing pipe 17 needs to be sealed, the motor 19 arranged at the bottom side of the partition plate 18 is started to drive the fluted disc 20 to rotate, and the fluted disc 20 is in transmission connection with the bevel gear set A21 and the bevel gear set B22 to drive the two groups of rotary discs 13 arranged at the inner side of the mounting plate 12 to rotate and adjust;

when the two clamping jaws 15 hinged to the outer side of the rotary table 13 through the guide rods 14 rotate to be in an inosculating state, the sealing tubes 17 pre-installed on the inner sides of the two clamping jaws 15 can be contacted with the outer side positions of the pipeline to be covered again, at the moment, the heating wires inside the heating rods 16 are electrified, the sealing tubes 17 sleeved on the outer sides of the pipe fittings and the connecting pipes 23 are welded and fixed, and therefore the purpose of independently replacing the sealing tubes 17 inside the wall body is achieved.

Finally, it should be noted that, when describing the positions of the components and the matching relationship therebetween, the present invention is usually illustrated by one/a pair of components, however, it should be understood by those skilled in the art that such positions, matching relationship, etc. are also applicable to other/other pairs of components.

The foregoing is illustrative of the present invention and is not to be construed as limiting its scope, which is defined by the appended claims.

Claims

1. A sealing device for a wall-penetrating pipe fitting in a biosafety laboratory is characterized by comprising: the base (1), the base (1) is of a hollow structure, a cavity is further formed in the base (1), a protective layer (2) is inserted into the cavity, the protective layer (2) is a memory metal net, through grooves are further formed in the outer side of the protective layer (2) in a linear array mode, a sealing barrel (3) is further fixedly connected into the base (1), the sealing barrel (3) is of an internal hollow structure, the outer peripheral surface of the sealing barrel (3) is in contact with the inner wall of the base (1), mounting plates (12) are fixedly connected to the left side and the right side of the interior of the sealing barrel (3), every two longitudinally adjacent mounting plates (12) form a group, and a rotary table (13) is further rotatably connected to the inner side of each group of mounting plates (12); the connecting pipe (23) is used for connecting a sealing pipe (17), the top end in the sealing barrel (3) is also fixedly connected with a guide rail (5), the bottom end of the guide rail (5) is provided with a through groove, the inside of the guide rail (5) is also connected with a pull rod (6) in a sliding manner, and the pull rod (6) protrudes out of the sealing plate (4) positioned on the front side; the rear side of the bottom end face of the pull rod (6) is fixedly connected with a guide block (7), the guide block (7) is connected in the guide rail (5) in a sliding mode, a crushing sleeve (8) is fixedly connected to the bottom end face of the guide block (7), the crushing sleeve (8) is of a conical structure with a blade, and the crushing sleeve (8) is used for crushing the sealing pipe (17).

2. The sealing device for the through-wall pipe fitting in the biosafety laboratory according to claim 1, wherein: the sealing cylinder (3) is of a cylinder structure, the sealing plates (4) are fixedly connected to the front side face and the rear side face of the sealing cylinder (3), the connecting pipes (23) are further mounted at the center positions of the inner portions of the two sealing plates (4), and the connecting pipes (23) and the sealing plates (4) are of a through structure.

3. The sealing device for the through-wall pipe fitting in the biosafety laboratory according to claim 1, wherein: the crushing sleeve (8) is sleeved at the outer side position of the connecting pipe (23) in a normal state, the adjusting boxes (9) are fixedly connected to the left side and the right side of the inside of the sealing barrel (3), one sides of the two adjusting boxes (9) facing the guide block (7) are of a through structure, and the magnetic blocks (10) are mounted in the two adjusting boxes (9) through the reset springs (11).

4. The sealing device for the through-wall pipe fitting in the biosafety laboratory according to claim 1, wherein: the sealing device is characterized in that a partition plate (18) is fixedly connected to the bottom end of the interior of the sealing cylinder (3), a motor (19) is installed on the lower side of the partition plate (18), a transmission shaft is further arranged on one side of the motor (19) and penetrates through the partition plate (18) and protrudes out of the partition plate (18), and a fluted disc (20) is further installed on the outer side of the transmission shaft.

5. The sealing device for the through-wall pipe fitting in the biosafety laboratory according to claim 4, wherein: the left side and the right side of the upper end of the fluted disc (20) are respectively meshed with a helical gear, the outer side of the helical gear positioned on the left side is sequentially connected with a bevel gear set A (21) and a bevel gear set B (22) in a transmission manner, the outer side of the helical gear positioned on the right side is also provided with the bevel gear set B (22), and the bevel gear set A (21) and the bevel gear set B (22) are both connected with the rotary disc (13).

6. The sealing device for the through-wall pipe fitting in the biosafety laboratory according to claim 1, wherein: the inside of carousel (13) still articulates there is guide arm (14), clamping jaw (15) are still installed to one end at guide arm (14), clamping jaw (15) are used for spacing sealed tube (17), and heating rod (16) are still installed to the inboard of every two vertical adjacent clamping jaw (15), the inside of heating rod (16) is provided with the heater strip, carousel (13) and guide arm (14) and clamping jaw (15) all are equipped with the four places, wherein every two vertical adjacent carousel (13) and guide arm (14) and clamping jaw (15) of department are a set of, and two sets of carousel (13) and guide arm (14) and clamping jaw (15) are located the inside left and right sides of sealed section of thick bamboo (3) respectively, and two sets of carousel (13) and guide arm (14) and clamping jaw (15) are the installation of subtend dislocation.