CN219051384U

CN219051384U - Centrifugal tube with enhanced sealing performance

Info

Publication number: CN219051384U
Application number: CN202223543977.7U
Authority: CN
Inventors: 邢宽; 张鹏; 谢珍; 何贵伦; 余同
Original assignee: Nanjing Experimental Medicine Examines Co ltd
Current assignee: Nanjing Experimental Medicine Examines Co ltd
Priority date: 2022-12-29
Filing date: 2022-12-29
Publication date: 2023-05-23
Anticipated expiration: 2032-12-29

Abstract

The utility model discloses a centrifugal tube with enhanced tightness, which comprises a centrifugal tube and a sealing mechanism arranged on the centrifugal tube, wherein the sealing mechanism comprises a fixed ring and a fixed cover, the sealing mechanism is fixed on the centrifugal tube through the fixed ring, the fixed cover seals a port of the centrifugal tube, and a baffle capable of being pulled and opened is further arranged on the fixed cover. The advantage utilizes fixed lid sealed centrifuging tube, prevents the circumstances that reagent liquid leaked in the centrifugation process, utilizes the baffle of pull again to open fixed lid simultaneously, spills the inside rubber seal layer of fixed lid, inserts the sampler and samples in the rubber seal layer, further strengthens the leakproofness, prevents that aerosol loss from appearing in the sampling process, can directly lift fixed lid and inject when injecting reagent liquid, effectively prevents the rubber seal layer from scraping the condition of rubbing reagent liquid, convenient to use.

Description

Centrifugal tube with enhanced sealing performance

Technical Field

The utility model particularly relates to a centrifuge tube with enhanced tightness.

Background

Centrifugal technology is often used in biological and chemical laboratories, and mainly utilizes centrifugal force generated by high-speed rotation of a centrifugal machine to enable tiny particles (such as organelles, precipitation of biological macromolecules and the like) suspended in the centrifugal tube to be settled at a certain speed so as to be separated from solution, the existing centrifugal tube is very tight in sealing performance, the centrifugal tube and a sealing cover can be covered, the centrifugal tube and the sealing cover are required to be opened forcefully when the centrifugal tube is used for sampling, and when the centrifugal tube is opened, the sealing cover can suck out a part of solution or can generate invisible aerosol diffusion, so that the laboratory environment is polluted, and the health of laboratory staff is also endangered.

In chinese patent: 202120462311.5, the name is: the utility model provides a prevent liquid droplet from splashing and centrifuging tube of aerosol escape, is recorded in, includes tube, centrifuging tube upper cover and sets up at the orificial sealing mechanism of rubber material of centrifuging tube, sealing mechanism includes sealing ring and fixed the setting at the inside sealing blade combination of sealing ring, and the outer wall of sealing ring closely laminates with the inner wall of centrifuging tube, and sealing blade combination sets up in the middle part of sealing ring, and the lower part embedding centrifuging tube of sealing ring is inside, and the upper portion of sealing ring can overturn and roll up on the outer wall of sealing ring.

As shown in fig. 2 of patent 202120462311.5, the sealing ring is sleeved on the port of the centrifuge tube to increase the tightness, and meanwhile, the sealing blade combination is utilized to block the aerosol dissipation caused by uncovering and sampling, so that a certain tightness can be enhanced, but when reagent liquid is injected into the centrifuge tube, the situation that the reagent liquid is scraped and rubbed onto the sealing blade combination occurs in the sealing blade combination, so that leakage pollution is directly caused.

Disclosure of Invention

The technical problem to be solved by the utility model is that the reagent liquid in the centrifuge tube is easy to generate aerosol dissipation when the centrifuge tube is uncapped for use, and the problem of leakage pollution caused by scraping the reagent liquid by the existing device is solved.

Aiming at the technical problems, a centrifuge tube for enhancing the tightness is provided; the method is realized by the following technical scheme: the utility model provides an strengthen sealing's centrifuging tube, includes centrifuging tube and the sealing mechanism of setting on the centrifuging tube, sealing mechanism includes solid fixed ring and fixed lid, and sealing mechanism passes through solid fixed ring to be fixed on the centrifuging tube, and the fixed port that the centrifuging tube was sealed to the lid still is provided with the baffle that can pull open fixed lid on fixed lid.

According to the utility model, the centrifuge tube is sealed by the fixed cover, so that the leakage of reagent liquid in the centrifuging process is prevented, meanwhile, the drawable baffle is used for opening the fixed cover, the rubber sealing layer in the fixed cover is leaked, a sampler is inserted into the rubber sealing layer for sampling, the tightness is further enhanced, the aerosol dissipation in the sampling process is prevented, the fixed cover can be directly lifted for injection when the reagent liquid is injected, the situation that the rubber sealing layer scratches the reagent liquid is effectively prevented, and the use is convenient.

According to the technical scheme, the fixing ring is connected with the fixing cover, the fixing ring is clamped at the port of the centrifugal tube, the fixing cover covers the fixing ring to seal the centrifugal tube, the fixing ring is arranged to enable the centrifugal tube and the sealing mechanism to be manufactured separately, and finally the fixing ring and the fixing cover are assembled together, so that production cost is reduced.

According to the technical scheme, the annular sealing ring which is inserted into the port of the centrifugal tube is arranged below the fixed cover and perpendicular to the cover body, the rubber sealing layer is arranged in the sealing ring, and the sampler can sample through the rubber sealing layer without exposing the whole port of the centrifugal tube, so that the sealing performance is enhanced.

According to the technical scheme, a rectangular slot is formed in the upper portion of the fixed cover and perpendicular to the side wall of the fixed cover, the slot penetrates through the single side wall of the fixed cover to the middle of the other side wall, and the baffle is convenient to install and use due to the arrangement of the slot.

According to the technical scheme, one end of the baffle is inserted into the slot, one end of the baffle is exposed, the baffle and the slot are further provided with limiting blocks for preventing accidental falling, and the baffle is arranged in a leakage section, so that when reagent liquid is poured into the centrifuge tube, the baffle can be used for lifting the fixed cover, and the reagent liquid can be poured conveniently, and the centrifuge tube is more convenient to use.

According to the technical scheme, the centrifuge tube and the sealing mechanism are made of PP plastic with certain elasticity and toughness, and the PP plastic is arranged to enable the centrifuge tube and the sealing mechanism to be manufactured through injection molding, so that the production speed is high, and meanwhile, the cost is lower.

Compared with the prior art, the utility model has the following beneficial effects:

according to the technical scheme, the centrifugal tube is sealed by the fixed cover, the condition that reagent liquid leaks in the centrifugal process is prevented, meanwhile, the drawable baffle is used for opening the fixed cover, the rubber sealing layer in the fixed cover is leaked, a sampler is inserted into the rubber sealing layer for sampling, the tightness is further enhanced, aerosol dissipation in the sampling process is prevented, the fixed cover can be directly lifted for injection when reagent liquid is injected, the condition that the rubber sealing layer is scratched and rubbed with the reagent liquid is effectively prevented, and the reagent liquid collecting device is convenient to use.

Drawings

Fig. 1 is a schematic perspective view of the present utility model.

Fig. 2 is a schematic perspective view of the sealing mechanism.

Fig. 3 is a cut-away view of the sealing mechanism.

Detailed Description

The following describes the technical solution in the embodiment of the present utility model in detail with reference to fig. 1 to 3 in the embodiment of the present utility model.

Example 1

As shown in FIG. 1, the centrifuge tube with enhanced tightness comprises a centrifuge tube 1 and a sealing mechanism 2 arranged on the centrifuge tube 1.

As shown in fig. 2 and 3, the sealing mechanism 2 comprises a fixing ring 21 and a fixing cover 22, the fixing ring 21 is a circular ring with a U-shaped cross section, the distance between two side walls of the fixing ring 21 is slightly larger than the thickness of the centrifuge tube 1, and the sealing mechanism can be inserted into a port of the centrifuge tube 1 after glue is coated between the two side walls of the fixing ring 21.

The fixing cover 22 and the fixing ring 21 are connected together by a foldable plastic sheet, so that the fixing cover 22 can be covered on the fixing ring 21.

The whole fixed cover 22 is circular, the outer diameter of the fixed cover 22 is equal to the inner diameter of the fixed ring 21, and the inner diameter of the fixed cover 22 is slightly smaller than the inner diameter of the fixed ring 21.

In order to enhance the tightness of the fixed cover 22, an annular sealing ring 24 is arranged on the fixed cover 22 and is in circle center with the cylinder of the fixed cover 22, the inner diameter of the annular sealing ring 24 is equal to the inner diameter of the fixed cover, and the outer diameter of the annular sealing ring 24 is equal to the inner diameter of the fixed ring 21, so that the annular sealing ring 24 can be tightly attached to the fixed ring 21 when the fixed cover 22 is closed, and the tightness of the centrifuge tube 1 when the centrifuge tube is closed is ensured.

In order to close the fixing cover 22, a rubber sealing layer 25 for closing the annular sealing ring 24 is arranged on the annular sealing ring 24, the rubber sealing layer 25 is round, the edge of the rubber sealing layer 25 is fixed on the inner wall of the annular sealing ring 24 through glue or other suitable means, and the annular sealing ring 24 is closed.

The rubber sealing layer 25 is made of rubber with higher elasticity, when the sampler samples, the sampling head of the sampler can penetrate through the rubber sealing layer 25 and is inserted into the centrifuge tube 1, and after the sampling head of the sampler is pulled out, the rubber sealing layer 25 can be closed under the action of rubber elasticity, so that the reagent liquid in the centrifuge tube 1 is prevented from being dispersed in aerosol.

As shown in fig. 2 and 3, on the side wall above the fixed cover 22, a slot 26 penetrating through the single side wall of the fixed cover 22 is opened perpendicularly to the fixed cover 22, the slot 26 penetrates through only one side surface of the fixed cover 22, the depth of the slot 26 on the other side surface corresponding to the fixed cover 22 is half of the wall thickness of the fixed cover, the slot 26 is a groove with a rectangular cross section, and the slot 26 is opened above the rubber sealing layer 25.

The baffle 23 is inserted in the slot 26, the thickness of the baffle 23 is equal to the thickness of the slot 26, stable sealing can be kept after the baffle 23 is inserted in the slot 26, in order to prevent the baffle 23 from falling from the slot 26, a limiting block for preventing accidental falling is arranged at the corresponding position of the inner end of the baffle 23 and the slot 26, the baffle 23 can be pulled out of the slot 26 only by slightly forcefully pulling the baffle 23 when in use, and in order to facilitate lifting of the fixed cover 22, one end of the baffle 23, which leaks outside after being inserted into the slot 26, is 8mm long.

For the convenience of production and manufacture, the centrifuge tube 1 and the sealing mechanism 2 of the embodiment are both made of plastic PP by injection molding.

The use process of the embodiment is as follows: when the centrifugal tube is used, firstly, the leaked baffle plate 23 is pressed by hands, the fixed cover 22 is lifted, then reagent liquid is injected into the centrifugal tube 1, then the fixed cover 22 is closed to seal the centrifugal tube 1, then the centrifugal tube is centrifuged, when the reagent liquid in the centrifugal tube 1 is needed to be taken by the sampler after the centrifugal operation is finished, the baffle plate 23 is pulled firstly, the baffle plate 23 is extracted from the slot 26, the rubber sealing layer 25 below the baffle plate 23 is leaked, then the sampling head of the sampler is inserted into the centrifugal tube 1 for sampling through the rubber sealing layer 25, the sampler is pulled out after the sampling is finished, at the moment, the rubber sealing layer 25 automatically closes a mouth of the sampling head to be opened under the action of self rubber elasticity, then the baffle plate 23 is reinserted into the slot 26, and aerosol generated in the sampling process is effectively prevented.

The above embodiments are only for illustrating the technical idea of the present utility model, and the protection scope of the present utility model is not limited thereto, and any modification made on the basis of the technical scheme according to the technical idea of the present utility model falls within the protection scope of the present utility model.

Claims

1. A centrifuge tube for enhancing tightness, characterized in that: including centrifuging tube (1) and sealing mechanism (2) of setting on centrifuging tube (1), sealing mechanism (2) are including solid fixed ring (21) and fixed lid (22), and sealing mechanism (2) are fixed on centrifuging tube (1) through solid fixed ring (21), and the port of centrifuging tube (1) is sealed to fixed lid (22), but still is provided with baffle (23) of pull open fixed lid (22) on fixed lid (22).

2. The enhanced seal centrifuge tube of claim 1 wherein: the fixing ring (21) is connected with the fixing cover (22), the fixing ring (21) is clamped at the port of the centrifuge tube (1), and the fixing cover (22) covers the fixing ring (21) to seal the centrifuge tube (1).

3. The enhanced seal centrifuge tube of claim 2, wherein: an annular sealing ring (24) inserted into the port of the centrifuge tube (1) is arranged below the fixed cover (22) and perpendicular to the cover body, and a rubber sealing layer (25) is arranged in the sealing ring (24).

4. The enhanced seal centrifuge tube of claim 1 wherein: a rectangular slot (26) is formed in the side wall perpendicular to the fixed cover (22) above the fixed cover (22), and the slot (26) penetrates through the single side wall of the fixed cover (22) to the middle of the other side wall.

5. The enhanced seal centrifuge tube of claim 4 wherein: one end of the baffle plate (23) is inserted into the slot (26), and the other end is exposed, and limiting blocks for preventing accidental falling are further arranged on the baffle plate (23) and the slot (26).

6. The enhanced seal centrifuge tube of claim 1 wherein: the centrifuge tube (1) and the sealing mechanism (2) are made of PP plastic with certain elasticity and toughness.