CN212031002U

CN212031002U - Sterile sampling valve

Info

Publication number: CN212031002U
Application number: CN202020497120.8U
Authority: CN
Inventors: 阮安
Original assignee: Wuhan Qicheng Biological Technology Co ltd
Current assignee: Wuhan Qicheng Biological Technology Co ltd
Priority date: 2020-04-08
Filing date: 2020-04-08
Publication date: 2020-11-27
Anticipated expiration: 2030-04-08

Abstract

The utility model relates to an aseptic sampling valve, including valve body and sampling subassembly, the intercommunication is equipped with sampling channel on the valve body lateral wall, and be equipped with the sample connection in the intercommunication department of the two, sampling subassembly includes flexible aseptic sealing plug, compress tightly a and closing cap, aseptic sealing plug is arranged in sampling channel, compress tightly a detachable and assemble in sampling channel's port, run through the sampling through-hole that is equipped with along sampling channel length direction extension on it, it offsets with aseptic sealing plug to compress tightly, and be used for compressing tightly the aseptic sealing plug and pack in sampling channel, so that aseptic sealing plug part stretches into the interior shutoff of packing of sample connection, the sealed assembly of closing cap detachable is in sampling channel's port department. The advantages are that: the secondary pollution of sampling is solved, and online sampling is realized without stopping equipment; the problem of dead space during installation of the sampling valve is reduced, and the sterile sampling valve does not need a tee joint and threaded connection and has no dead space; the disinfection is simple, the risk of improper disinfection is reduced, and the sampling accuracy is improved.

Description

Sterile sampling valve

Technical Field

The utility model relates to a reverse osmosis water treatment technical field, in particular to aseptic sample valve.

Background

The sterile sampling valve is used for reverse osmosis water treatment and medical treatment reverse osmosis water production equipment. The sampling method used at present has the following defects when a valve is used for sampling:

1) before sampling, the valve needs to be opened to flush, wash and disinfect the valve, and then the valve is flushed again, so that a water sample can be extracted.

2) The current sampling mode can only be extracted the water sample when equipment stops using to, the water flow rate is very fast during the sample, on the easy splash to the person's of taking a sample clothing, maneuverability is very poor.

3) When the sampling valve is used for sampling, the operation flow is very strict, and the operation is not good, so that the water sample is easily polluted.

Accordingly, there is a need to relate to a new type of sterile sampling valve.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that an aseptic sample valve is provided, the effectual defect of overcoming prior art.

The utility model provides an above-mentioned technical problem's technical scheme as follows:

the utility model provides an aseptic sample valve, including valve body and sampling subassembly, the intercommunication is equipped with sampling channel on the above-mentioned valve body lateral wall, and be equipped with the sample connection in the intercommunication department of the two, above-mentioned sampling subassembly includes flexible aseptic sealing plug, compress tightly a and closing cap, above-mentioned aseptic sealing plug is arranged in above-mentioned sampling channel, the aforesaid is compressed tightly a detachable and is assembled in the port of above-mentioned sampling channel, run through the sample through-hole that is equipped with along above-mentioned sampling channel length direction extension on it, the aforesaid is compressed tightly a and offsets with aseptic sealing plug, and be used for compressing tightly above-mentioned aseptic sealing plug and pack in above-mentioned sampling channel, so that above-mentioned aseptic sealing plug part stretches into above-mentioned sample connection and fills the shutoff, the sealed assembly of above-mentioned.

The utility model has the advantages that: the secondary pollution of sampling is solved, and online sampling is realized without stopping equipment; the problem of dead space during installation of the sampling valve is reduced, and the sterile sampling valve does not need a tee joint and threaded connection, so that the design of complete no dead space is realized; the disinfection is simple, the risk of improper disinfection operation is reduced, and the sampling accuracy is greatly improved.

On the basis of the technical scheme, the utility model discloses can also do following improvement.

Further, the sampling passage is a circular tubular passage.

The beneficial effects of adopting the above further scheme are reasonable design and convenient use.

Further, the pressing piece is a pressing nut, the middle of the pressing piece is provided with the sampling channel which coaxially penetrates through the pressing piece, the inner wall of the port of the sampling channel is provided with internal threads, and the pressing nut is screwed in the port of the sampling channel.

Adopt the beneficial effect of above-mentioned further scheme to be convenient to compress tightly the quick assembly disassembly combination of piece and sample access.

Further, the sterile sealing plug is a cylindrical plug matched with the sampling channel.

Adopt above-mentioned further scheme's beneficial effect be that the cooperation of optional position between aseptic sealing plug and the sampling channel is all inseparabler, and the leakproofness is better, and no dead space exists.

Further, the sterile sealing plug is a medical grade soft silica gel plug.

The beneficial effects of adopting the further scheme are that the use is convenient, safe and sanitary.

Furthermore, one end of the sterile sealing plug close to the pressing piece is coaxially provided with a cylindrical extension part matched with the sampling channel, and the extension part is embedded into the sampling channel.

The beneficial effect who adopts above-mentioned further scheme is that eliminate the thief hole dead space for aseptic sealing plug links to each other with compressing tightly the piece, convenient quick assembly.

Furthermore, the port of one end of the sampling channel, which is far away from the aseptic sealing plug, is flared, the end of the extension, which is far away from the aseptic sealing plug, is provided with a matched truncated cone-shaped positioning part, and the positioning part is embedded in the flaring position at the port of the sampling channel.

Adopt above-mentioned further scheme's beneficial effect can eliminate sample through-hole dead space to make aseptic sealing plug and compress tightly firm in connection between the piece.

Further, the sealing cover is a round cover, the inner wall of the sealing cover is provided with internal threads, the outer wall of the port of the sampling channel is provided with external threads, and the sealing cover is screwed outside the port of the sampling channel.

Adopt the beneficial effect of above-mentioned further scheme to make things convenient for the quick assembly disassembly combination of closing cap and sample access.

Drawings

Fig. 1 is an exploded view of the aseptic sampling valve of the present invention.

In the drawings, the components represented by the respective reference numerals are listed below:

1. valve body, 2, sampling subassembly, 11, sample passageway, 12, sample connection, 21, aseptic sealing plug, 22, compressing tightly piece, 23, closing cap, 211, extension, 212, location portion.

Detailed Description

The principles and features of the present invention are described below in conjunction with the following drawings, the examples given are only intended to illustrate the present invention and are not intended to limit the scope of the present invention.

Example (b): as shown in fig. 1, the aseptic sampling valve of this embodiment includes a valve body 1 and a sampling assembly 2, a sampling passage 11 is provided on a side wall of the valve body 1 in a communicating manner, and a sampling port 12 is provided at a communicating position between the sampling passage 1 and the sampling passage, the sampling assembly 2 includes a flexible aseptic sealing plug 21, a pressing member 22 and a sealing cap 23, the aseptic sealing plug 21 is disposed in the sampling passage 11, the pressing member 22 is detachably assembled in a port of the sampling passage 11, a sampling through hole extending along a length direction of the sampling passage 11 is provided thereon in a penetrating manner, the pressing member 22 abuts against the aseptic sealing plug 21 and is used for pressing and filling the aseptic sealing plug 21 in the sampling passage 11, so that a part of the aseptic sealing plug 21 extends into the sampling port 12 for plugging, and the sealing cap 23 is detachably assembled in the sealing plug of the sampling passage 11 in a sealing manner.

The aseptic sample valve of this embodiment is for there being no dead space design, utilize the elasticity of flexible aseptic sealing plug 21 and valve body 1's special construction, produce an extension power through compressing tightly aseptic sealing plug 21 of 22 compression, this extension power is used in sealing sampling channel 11 on valve body 1 (specific complete shutoff sample connection 12), in addition, be used in compressing tightly 22 to the external seal, produce two barriers and ensure that the air of outside and the water in the pipeline can't pass in and out, reuse closing cap 23 is isolated completely, whole valve body 1 is inside not to have the dead space, can not breed the bacterium. When the sample, open closing cap 23 and use the syringe needle to pierce through aseptic sealing plug 21 after, rivers can flow to the disposable syringe of sample usefulness through the syringe needle, extract the syringe needle after acquireing sufficient water appearance, aseptic sealing plug 21 is springing back under the elasticity that compresses tightly 22 extrudees and is sealed the pinhole, realize that online sample need not pause equipment, after the sample is accomplished, disinfect 11 ports of sample passageway, it can to cover closing cap 23 well, the disinfection is fairly simple, the improper risk of disinfection operation has been reduced, the accuracy of sample has been improved greatly.

The valve body 1 adopts 316L sanitary stainless steel and can work under high temperature and high pressure.

In a preferred embodiment, the sampling channel 11 is a tubular channel.

In this embodiment, the tubular design of the sampling channel 11 enables the aseptic sealing plug 21 to tightly seal any position inside the sampling channel 11 when being extruded and expanded, and the sealing is relatively uniform and the effect is relatively good.

In a preferred embodiment, the pressing member 22 is a pressing nut, the middle portion of the pressing member is provided with the sampling passage 11 coaxially penetrating through the pressing member, the inner wall of the port of the sampling passage 11 is provided with an internal thread, and the pressing nut is screwed into the port of the sampling passage 11.

In this embodiment, the pressing part 22 adopts gland nut, and the screw design through the 11 ports of sampling channel makes the two can be fixed through simple threaded connection can interconnect, simultaneously, can adjust aseptic sealing plug 21 and sampling channel 11's leakproofness through screwing up gland nut, and the operation is fairly simple, swift, and the dismouting is more convenient.

In a preferred embodiment, the sterile sealing plug 21 is a cylindrical plug that fits into the sampling channel 11.

In this embodiment, the diameter of aseptic sealing plug 21 is the best to be slightly less than sampling channel 11 internal diameter, makes things convenient for it to get into sampling channel 11 to, can be inseparable when the pressure of receiving compressing member 22 expands with the laminating of 11 inner walls of sampling channel, realize quick, good sealed, simultaneously, when receiving the extrusion, its front end can be partly deformation protrusion and fill sample connection 12 completely, guarantee sample connection 12 department does not have the existence of dead space.

In a preferred embodiment, the sterile sealing plug 21 is a medical grade soft silicone plug.

In this embodiment, the medical grade soft silica gel plug is safe and sanitary to use, and can work under high temperature and high pressure, and is very suitable for the aseptic sampling valve of this embodiment.

Of course, the aseptic sealing plug 21 may be replaced by other sealing plugs made of other materials with the same function.

In a preferred embodiment, a cylindrical extension 211 matching with the sampling channel 11 is coaxially disposed at one end of the sterile sealing plug 21 close to the pressing member 22, and the extension 211 is inserted into the sampling channel 11.

In this embodiment, the extension 211 is designed to allow the aseptic sealing plug 21 to be fitted into the sampling passage 11 together with the pressing member 22 and to ensure axial alignment with the sampling passage 11, so that the situation that the aseptic sealing plug is inclined during pressing and cannot be pressed tightly on the inner wall of the sampling passage 11 locally is avoided, and the optimal state of sealing performance is ensured.

In practice, the diameter of the extension 211 is slightly larger than the sampling through hole of the pressing member 22, so that the extension 211 can be tightly inserted into the sampling through hole, and the sterile sealing plug 21 and the pressing member 22 are not easy to loosen and fall off.

In a preferred embodiment, a port of the sampling channel 11, which is far from the aseptic sealing plug 21, is flared, a matching circular truncated cone-shaped positioning portion 212 is provided at one end of the extending portion 211, which is far from the aseptic sealing plug 21, and the positioning portion 212 is fitted to a flaring position at the port of the sampling channel 11.

In this embodiment, the design of location portion 212 is embedded into sample through-hole together with extension portion 211, because of the design of the round platform form of location portion 212 for the restriction that extension portion 211 can be stable is in sample through-hole, and, can block up sample through-hole completely, and with closely laminating between the sample through-hole, make not dead space in the sample through-hole, can not breed the bacterium, reduce sterile degree of difficulty.

In a preferred embodiment, the cap 23 is a round cap, the inner wall of which is provided with a female screw, the outer wall of the port of the sampling passage 11 is provided with a male screw, and the cap 23 is screwed outside the port of the sampling passage 11.

In this embodiment, the design of the sealing cover 23 can be quickly and conveniently assembled with the sampling channel 11, and the operation is convenient.

The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.

Claims

1. An aseptic sampling valve, characterized by: comprises a valve body (1) and a sampling component (2), wherein the side wall of the valve body (1) is communicated with a sampling channel (11), and a sampling port (12) is arranged at the communication position of the two, the sampling component (2) comprises a flexible sterile sealing plug (21), a pressing piece (22) and a sealing cover (23), the sterile sealing plug (21) is arranged in the sampling passage (11), the pressing piece (22) is detachably assembled in the port of the sampling passage (11), a sampling through hole which extends along the length direction of the sampling passage (11) is arranged on the sampling passage in a penetrating way, the pressing piece (22) is propped against the sterile sealing plug (21), and is used for compressing and filling the sterile sealing plug (21) in the sampling passage (11), so that the sterile sealing plug (21) partially extends into the sampling port (12) to be filled and sealed, the cover (23) is detachably and hermetically assembled at the port of the sampling channel (11).

2. An aseptic sampling valve as defined in claim 1, wherein: the sampling channel (11) is a circular tubular channel.

3. An aseptic sampling valve as defined in claim 2, wherein: the pressing piece (22) is a pressing nut, the middle of the pressing piece is provided with the sampling channel (11) which coaxially penetrates through the pressing piece, the inner wall of a port of the sampling channel (11) is provided with internal threads, and the pressing nut is screwed in the port of the sampling channel (11).

4. An aseptic sampling valve according to claim 3, wherein: the sterile sealing plug (21) is a cylindrical plug matched with the sampling channel (11).

5. An aseptic sampling valve according to claim 4, wherein: the sterile sealing plug (21) is a medical grade soft silica gel plug.

6. An aseptic sampling valve according to claim 4, wherein: one end of the sterile sealing plug (21) close to the pressing piece (22) is coaxially provided with a cylindrical extension part (211) matched with the sampling channel (11), and the extension part (211) is embedded into the sampling channel (11).

7. An aseptic sampling valve according to claim 6, wherein: sampling channel (11) are kept away from the one end port of aseptic sealing plug (21) is the setting of loudspeaker form flaring, extension (211) are kept away from the one end of aseptic sealing plug (21) is equipped with location portion (212) of assorted round platform form, location portion (212) gomphosis in the flaring position of the port department of sampling channel (11).

8. An aseptic sampling valve according to any of claims 2 to 7, wherein: the sealing cover (23) is a round cover, an internal thread is arranged on the inner wall of the sealing cover, an external thread is arranged on the outer wall of the port of the sampling channel (11), and the sealing cover (23) is screwed outside the port of the sampling channel (11).