CN216951805U

CN216951805U - Sterile sampling valve

Info

Publication number: CN216951805U
Application number: CN202220785245.XU
Authority: CN
Inventors: 王立爽; 李�瑞; 李腾
Original assignee: Wenzhou Yedong Valve Fittings Co ltd
Current assignee: Wenzhou Yedong Valve Fittings Co ltd
Priority date: 2022-04-02
Filing date: 2022-04-02
Publication date: 2022-07-12
Anticipated expiration: 2032-04-02

Abstract

The utility model discloses a sterile sampling valve, which comprises a valve body and is characterized in that: the valve body is provided with a steam pipeline and a sampling pipeline, the sampling pipeline is fixedly connected with a supporting plate, the supporting plate is provided with a fixed rod, the fixed rod is conical, the diameter of one end of the fixed rod far away from the supporting plate is larger than that of one end of the fixed rod close to the supporting plate, the fixed rod is provided with a sealing baffle plate which is movable relative to the supporting plate, the sealing baffle plate is provided with a through hole, the sealing baffle plate is matched with the fixed rod to seal a sampling pipeline, a telescopic spring is also arranged between the sealing baffle plate and the supporting plate, a sampling container can be detachably connected to the sampling pipeline, and the sampling container is propped against the sealing baffle plate, the sealing baffle moves towards the sampling pipeline under the pressure of the sampling container, the expansion spring is compressed, the sampling liquid flows out from the gap between the through hole and the fixed rod, after the sample, the sampling container is pulled down from the sampling pipe, and the expansion spring resets and drives the sealing baffle to return, thereby realizing the sealing of the opening of the sampling pipe.

Description

Sterile sampling valve

Technical Field

The present invention relates to a valve, and more particularly it relates to an aseptic sampling valve.

Background

Sampling valves are valves used for obtaining media samples in pipelines or equipment, and special sampling valves are often used in many occasions where chemical analysis is frequently required on the media samples. According to the working principle or different performances during sampling, the sampling valve mainly comprises a duplex opening valve, a flange clamping piece valve and a sampling valve with a heat-preservation clamping sleeve.

The existing sampling valve is generally installed on a pipeline on the side, sterilization treatment needs to be carried out through the flow of high-temperature and high-pressure steam in the sampling valve before sampling, a container needs to be placed at an opening of the sampling pipeline for sampling during sampling, but sampling liquid is easily exposed in the outside air and contacts and pollutes in the discharging and collecting processes, and the sampling container is difficult to be rapidly sealed after sampling is finished, so that the sampling liquid is isolated from the outside air, and the detection of a sample is not facilitated; the user can appear forgetting the neglected condition of installing the end cap on the sample tube simultaneously after the sample to cause the accident of sample tube to open, the dust can drop in the sample tube, and steam sterilization is difficult to handle the dust, and this will cause the pollution of next sample.

SUMMERY OF THE UTILITY MODEL

In view of the shortcomings of the prior art, the present invention provides an aseptic sampling valve, which can prevent the sample liquid from being exposed to air and polluted by sealing the sample liquid in the sampling container after the sampling container is detached by an operator.

In order to achieve the purpose, the utility model provides the following technical scheme: an aseptic sampling valve, includes the valve body, its characterized in that: one side of valve body is equipped with steam conduit, and its opposite side is equipped with the sample pipeline, fixedly connected with backup pad in the sample pipeline, be equipped with the dead lever in the backup pad, the dead lever is the taper setting, just the diameter that the backup pad was kept away from to the dead lever one end is greater than the diameter of the one end that is close to the backup pad, still be equipped with the seal flap that can the backup pad activity relatively on the dead lever, seal flap is equipped with the through-hole that matches with the dead lever, seal flap and dead lever cooperation are used for sealed sample pipeline, still be equipped with expanding spring between seal flap and the backup pad, still the dismantlement is connected with the sample container on the sample pipeline, the sample container offsets with seal flap.

Through adopting above-mentioned technical scheme, operating personnel is before the sample, install sampling vessel on sampling pipe earlier, sampling vessel pushes seal retainer in to sampling pipe, expanding spring is compressed, then operating personnel opens the valve again, appearance liquid flows in sampling vessel through the space between through-hole and the dead lever from sampling pipe, when sampling end operating personnel pull down sampling vessel, seal retainer no longer receives sampling vessel's pressure, expanding spring elasticity resets the drive seal retainer return, seal retainer seals sampling pipe with the dead lever cooperation, thereby realize the timely quick sealing of sampling pipe, prevent to forget after the operating personnel sample finishes and sheathe end cap in, lead to the dust to fall into and cause the pollution in the sampling pipe.

The utility model is further configured to: the sampling container comprises a sampling port, the diameter of the sampling port is smaller than the opening diameter of the sampling pipeline, a first ball and a first spring are further arranged in the sampling container, the diameter of the first ball is larger than that of the sampling port, the first spring tightly supports the first ball and is used for sealing the sampling port, and the fixed rod outwards extends out of the sampling pipeline and is abutted against the first ball.

Through adopting above-mentioned technical scheme, when the sample container was installed on the sample pipeline, the dead lever offseted with first ball and stretched into in the sample container to the first spring of dead lever drive compression, the sample connection is opened, and when the sample container pulled down from the sample pipeline, dead lever and first ball separation, the sample connection was plugged up to first spring elasticity drive first ball, had avoided the appearance liquid in the sample container to expose in the outside air.

The utility model is further configured to: and meshes are arranged on the supporting plate.

The utility model is further configured to: the sampling container is provided with external threads, the sampling pipeline is provided with internal threads, and the sampling container is matched with the sampling pipeline through threaded connection.

The utility model is further configured to: the steam pipeline comprises an air inlet, a second ball and a second spring are arranged in the steam pipeline, the diameter of the second ball is larger than that of the air inlet, and the second spring tightly abuts against the second ball and is used for sealing the air inlet

Through adopting above-mentioned technical scheme, when carrying out steam sterilization to aseptic sample valve, steam device is connected with the steam conduit, and the pressure drive second ball compression second spring of steam to steam gets into and sterilizes in the valve body, and after the sterilization, the second ball no longer receives steam pressure, and the air inlet is plugged up to second spring drive second ball, and sample valve is inside to be in encapsulated situation, has avoided causing the possibility of pollution in outside microorganism.

The utility model is further configured to: the sampling container is provided with scale marks and is further sleeved with a heat-insulation jacket, a view port is arranged on the heat-insulation jacket and corresponds to the scale marks.

Through adopting above-mentioned technical scheme, the heat preservation presss from both sides the cover and can keep warm to the appearance liquid in the sampling vessel, avoids the too big influence that causes the nature of appearance liquid of the temperature variation of appearance liquid in the sampling vessel, and the scale mark can make things convenient for operating personnel ration volume to get appearance liquid.

The utility model is further configured to: a liquid inlet pipeline is arranged in the valve body, and a filter screen is arranged in the liquid inlet pipeline.

Through adopting above-mentioned technical scheme, the filter screen can filter the appearance liquid, avoids impurity to collect in sampling container, for example the sample in beer production process, often collects foam and appearance liquid in sampling container together during the operating personnel sample to influenced the purity of the sample that awaits measuring, the filter screen can filter the foam, makes the measuring result be close to the true value.

The utility model is further configured to: the sampling pipeline is provided with a sealing baffle plate, the sampling pipeline is provided with a fixing rod, the fixing rod is provided with a fixing hole, the sampling pipeline is provided with a sampling hole, the fixing hole is provided with a fixing rod, the sampling hole is provided with a sampling hole, the sampling hole is provided with a sealing baffle plate, and the sampling hole is provided with a fixing rod.

Through adopting above-mentioned technical scheme, before the steam sterilization of sample valve, will open the closure earlier and install on the sample pipeline, make the closure push seal baffle in to the sample pipeline to open the sample pipeline, the clearance outflow of through-hole and dead lever can be followed to steam.

In conclusion, the utility model has the following beneficial effects:

according to the sampling pipeline, due to the arrangement of the fixed rod and the sealing baffle, when an operator samples, the sealing baffle is pressed into the sampling pipeline by the sampling container, the telescopic spring is compressed, the sampling pipeline is opened, after the operator samples, the telescopic spring elastically resets to drive the sealing baffle to return, and the sealing baffle and the fixed rod are matched with each other to automatically seal the sampling pipeline, so that the condition that the operator forgets to sleeve the plug on the sampling pipeline is avoided, and dust is prevented from entering the sampling pipeline to cause pollution.

According to the utility model, through the arrangement of the sampling container, when the sampling container is arranged on the sampling pipeline, the fixed rod jacks the first ball, the first spring is compressed, the sample liquid enters the sampling container from the sampling pipeline, and when the sampling container is dismounted from the sampling pipeline, the first spring is elastically reset to drive the first ball to block the sampling port, so that the sample liquid in the sampling container is sealed, and in the whole sampling process, the sample liquid is not contacted with the external environment, so that the sample liquid is prevented from being polluted in the discharging process.

Drawings

FIG. 1 is a schematic view of the internal structure of the present embodiment;

FIG. 2 is an enlarged view of FIG. 1 at A;

FIG. 3 is an enlarged view of FIG. 1 at B;

FIG. 4 is a structural view of the inside of a sampling pipe during installation of the sampling vessel of the present embodiment;

FIG. 5 is a schematic view of the structure of the closure and the sampling pipe of the present embodiment.

Reference numerals: 1. a valve body; 2. a steam line; 21. an air inlet; 22. a first ball bearing; 23. a second spring; 3. a sampling pipe; 31. fixing the rod; 32. a support plate; 33. sealing the baffle; 35. a through hole; 36. a tension spring; 4. a sampling container; 41. a sampling port; 42. a first ball bearing; 43. a first spring; 44. a heat-preserving jacket; 5. a liquid inlet pipeline; 51. a filter screen; 6. an opening and closing member; 61. and a ring groove.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

The embodiment discloses an aseptic sampling valve, as shown in fig. 1, which comprises a valve body 1, a steam pipeline 2 is arranged on the left side of the valve body 1, a second ball 22 is arranged at the upper end of the steam pipeline 2, the diameter of the second ball 22 is larger than that of an air inlet 21, the second ball 22 abuts against the air inlet 21, a second spring 23 is arranged between the second ball 22 and the steam pipeline 2, the second spring 23 is compressed when the second ball 22 moves downwards, so as to open the air inlet 21, a sampling pipeline 3 is arranged on the right side of the valve body 1, an internal thread is arranged on the sampling pipeline 3, an external thread is arranged on a sampling container 4, the two are in threaded connection and matching, as shown in fig. 1 and fig. 3-5, a supporting plate 32 is fixedly connected to the inner wall of the sampling pipeline 3, a tapered fixing rod 31 is arranged on the supporting plate 32, one end of the fixing rod 31 extends out of the sampling pipeline 3, a movable sealing baffle 33 is arranged on the fixing rod 31, sealing baffle 33 and dead lever 31 cooperation realize the sealed of sampling tube 3, are provided with the mesh on the backup pad 32, therefore the appearance liquid in the sampling tube 3 can pass backup pad 32 outflow.

Further, a first ball 42 is disposed in the sampling opening 41 of the sampling container 4, the diameter of the first ball 42 is larger than the diameter 41 of the sampling opening 41, and a first spring 43 is disposed between the first ball 42 and the sampling container 4. The outside cover of sampling container 4 has heat preservation jacket 44, and heat preservation jacket 44 can keep warm to the appearance liquid of collecting in sampling container 4, prevents that its temperature variation from causing the influence to nature too fast to but having seted up on the heat preservation jacket 44 and having marked the scale mark of sample solution volume, operating personnel sees through the liquid level height that can see into the appearance liquid in the view port, contrast scale mark, thereby the appointed volume of appearance liquid is got to the volume.

Further, valve body 1 is equipped with filter screen 51 in inlet conduit 5, and filter screen 51 can filter the appearance liquid in advance, reduces impurity, for example in beer production sample process, to the filtration of foam to the interference of foam to beer appearance liquid purity measurement has been avoided.

Furthermore, threaded connection has on the sample pipeline 3 and opens and close piece 6, be provided with the annular 61 with sample pipeline 3 terminal surface matching on opening and close piece 6, opening and close piece 6 is used for driving the relative dead lever 31 axial activity of seal baffle 33.

The working principle is as follows: when an operator prepares for sampling and measuring, the steam device is firstly communicated with the steam pipeline 2, then the opening and closing piece 6 is arranged on the sampling pipeline 3, the sealing baffle plate 33 is pushed into the sampling pipeline 3 by the opening and closing piece 6, thereby the sampling pipeline 3 is opened, the operator keeps the closed state of the sampling valve, then high-temperature high-pressure steam is introduced, the steam applies pressure to the second ball 22, the second ball 22 is driven to move downwards and compress the second spring 23, thereby the steam enters the valve body 1 through the air inlet 21, the inside of the sampling valve is sterilized, after the sterilization is finished, the opening and closing piece 6 is taken down and the steam device is disconnected with the steam pipeline 2, the steam pipeline 2 is blocked, then the sampling container 4 is arranged on the sampling pipeline 3 through threads, at the moment, the fixing rod 31 extends into the sampling container 4 and is abutted against the first ball 42, the first ball 42 is driven to compress the first spring 43, the sampling port 41 is opened, the sealing baffle 33 is also abutted against the sampling container 4, the sampling container 4 moves towards the inside of the sampling pipeline 3 under the pressure of the sampling container 4, the expansion spring 36 is compressed under the stress, the sampling pipeline 3 is opened, then an operator opens the sampling valve, sample liquid enters the valve body 51 from the liquid inlet pipeline 5 through the filter screen 51, then flows into the sampling container 4 from the sampling pipeline 3 through a gap between the through hole 35 and the fixed rod 31, the operator measures the specified amount of the sample liquid through the liquid level and the scale mark, then closes the sampling valve, and removes the sampling container 4, in the process that the sampling container 4 is separated from the sampling pipeline 3, the pressure of the fixed rod 31 on the first ball 42 is gradually reduced and disappears, the first spring 43 is elastically reset to drive the first ball 42 to move upwards, so that the sampling port 41 is blocked by the first ball 42, the sample liquid in the sampling container 4 is in a sealing state, and the sealing baffle 33 also moves towards the outside of the sampling pipeline 3 under the elastic force of the expansion spring 36, and the sampling pipe 3 is sealed by matching with the fixed rod 31.

In the process of discharging and collecting the sample liquid by an operator, the sample liquid is not exposed to the external environment all the time, so that the sample liquid is prevented from being polluted by the external environment, and the collection of the sample is more credible and reliable; and sampling pipe 3 opens automatically when taking a sample, and the self-closing is sealed after finishing taking a sample, has avoided operating personnel to forget the condition of sheaing the end cap because of the negligence, has effectively avoided the dust to get into the condition in the sample valve from sampling pipe 3, has avoided the pollution of dust to the appearance liquid.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents, improvements and the like made within the design concept of the present invention should be included in the scope of the present invention.

Claims

1. An aseptic sampling valve comprising a valve body (1), characterized in that: one side of the valve body (1) is provided with a steam pipeline (2), the other side of the valve body is provided with a sampling pipeline (3), a support plate (32) is fixedly connected in the sampling pipeline (3), a fixing rod (31) is arranged on the support plate (32), the fixing rod (31) is arranged in a conical shape, the diameter of one end, far away from the support plate (32), of the fixing rod (31) is larger than that of one end, close to the support plate (32), of the fixing rod (31), a sealing baffle (33) capable of moving relative to the support plate (32) is further arranged on the fixing rod (31), a through hole (35) matched with the fixing rod (31) is formed in the sealing baffle (33), the sealing baffle (33) is matched with the fixing rod (31) and used for sealing the sampling pipeline (3), an expansion spring (36) is further arranged between the sealing baffle (33) and the support plate (32), and a sampling container (4) can be detachably connected on the sampling pipeline (3), the sampling container (4) is abutted against the sealing baffle (33).

2. An aseptic sampling valve as defined in claim 1, wherein: the sampling container (4) comprises a sampling port (41), the diameter of the sampling port (41) is smaller than the opening diameter of the sampling pipeline (3), a first ball (42) and a first spring (43) are further arranged in the sampling container (4), the diameter of the first ball (42) is larger than that of the sampling port (41), the first spring (43) abuts against the first ball (42) tightly and is used for sealing the sampling port (41), and the fixing rod (31) outwards extends out of the sampling pipeline (3) and is abutted against the first ball (42).

3. An aseptic sampling valve as defined in claim 1, wherein: the supporting plate (32) is provided with meshes.

4. An aseptic sampling valve as defined in claim 1, wherein: the sampling container (4) is provided with an external thread, the sampling pipeline (3) is provided with an internal thread, and the sampling container (4) is matched with the sampling pipeline (3) through threaded connection.

5. A sterile sampling valve according to claim 1, wherein: the steam pipeline (2) comprises an air inlet (21), a second ball (22) and a second spring (23) are arranged in the steam pipeline (2), the diameter of the second ball (22) is larger than that of the air inlet (21), and the second spring (23) abuts against the second ball (22) and is used for sealing the air inlet (21).

6. An aseptic sampling valve as defined in claim 1, wherein: the sampling device is characterized in that scale marks are arranged on the sampling container (4), a heat-insulating jacket (44) is further sleeved on the sampling container (4), a view port is arranged on the heat-insulating jacket (44), and the view port corresponds to the scale marks.

7. An aseptic sampling valve as defined in claim 1, wherein: be equipped with liquid inlet pipe way (5) in valve body (1), be equipped with filter screen (51) in liquid inlet pipe way (5).

8. An aseptic sampling valve as defined in claim 1, wherein: threaded connection has opening and closing piece (6) on sample pipeline (3), be provided with annular (61) with sample pipeline (3) terminal surface matching on opening and closing piece (6), opening and closing piece (6) are used for driving sealing baffle (33) relative dead lever (31) axial activity.