CN213110542U

CN213110542U - Sealing cover for solvent bottle

Info

Publication number: CN213110542U
Application number: CN202021858242.1U
Authority: CN
Inventors: 王玉红; 苗壮; 王萌烨
Original assignee: Shanghai Dinghong Scientific Instruments Co ltd
Current assignee: Shanghai Dinghong Scientific Instruments Co ltd
Priority date: 2020-08-31
Filing date: 2020-08-31
Publication date: 2021-05-04
Anticipated expiration: 2030-08-31

Abstract

The utility model relates to a sealing cover for a solvent bottle, which comprises a bottle cover main body, a filling body, a one-way valve filter component and a plurality of fixed joints; the upper part of the inner wall of the bottle cap main body is provided with a groove, and the lower part of the inner wall of the bottle cap main body is provided with an internal thread; the peripheral surface of the filling body is provided with an annular flange which is embedded into the groove of the bottle cap main body; a sealing ring is fixedly arranged at the outer edge of the bottom of the filling body; a plurality of perforation threaded openings are arranged on the filling body in a penetrating way; the one-way valve filter assembly comprises a tubular bearing device, a one-way valve and a filter which are sequentially connected through bolts; one end of the bearing device is bolted to a perforated threaded port, the filter is provided with a liquid inlet port, a liquid outlet port and a cavity arranged between the liquid inlet port and the liquid outlet port, and a filtering membrane is arranged in the cavity. The advantages are that: the filter with the one-way valve can prevent harmful gas from volatilizing into the environment; the filling body can move freely, and the whole bottle cap does not need to be taken down when the filter component is replaced.

Description

Sealing cover for solvent bottle

Technical Field

The utility model relates to a chemistry experiment utensil technical field especially relates to a solvent bottle is with sealed lid.

Background

The liquid chromatograph is an instrument for separation and analysis by utilizing different distribution coefficients of different components between two phases, and comprises a liquid storage device, a pump, a sample injector, a chromatographic column, a detector, a recorder and the like. In the operation process, an organic solvent is used as a mobile phase to carry a detection sample to pass through a detection pipeline. After the organic solvent flows out of each part, the organic solvent needs to be collected and treated intensively, otherwise, the organic solvent causes pollution to a laboratory and even causes safety accidents.

At present, the common method is to directly punch a hole on a solvent bottle/barrel cover to insert a pipeline into a solvent or fix the position of the pipeline by using a fixed joint, and then a sealing film is used for sealing and covering in order to prevent the solvent from volatilizing. This brings about the following problems:

(1) the organic solvent belongs to volatile liquid, and can be greatly volatilized into indoor air from the empty part of the bottle cap, so that the indoor solvent has large smell, the environmental pollution can be caused, and the body health of workers can be seriously damaged;

(2) an air hole or an open type interface is arranged on the mobile phase bottle cap, and when the solvent is extracted, impurities such as dust in the air can enter the mobile phase bottle along with the air, so that the solvent is polluted;

(3) the fixed joint can only be connected with one type of pipeline, and when the filter component is replaced, the whole fixed joint needs to be replaced, so that the use is not flexible.

To the defect that prior art exists, provide the utility model discloses.

SUMMERY OF THE UTILITY MODEL

The embodiment of the utility model provides a to the structural shortcoming of prior art, provide a sealed lid for solvent bottle, can be used for connecting waste liquid bucket and reagent bottle, have the check valve filter, can prevent that harmful gas from volatilizing to the environment in, avoid causing the pollution to the environment, lead to the fact the threat to staff's health, but the obturator free activity need not to take off whole bottle lid when changing filter parts, avoids when opening or closing the lid, and the pipeline twines together.

In order to achieve the purpose of the utility model, the embodiment of the utility model provides a sealed lid for solvent bottle realizes through following technical scheme:

a sealing cover for a solvent bottle is characterized in that: the bottle cap comprises a barrel-shaped bottle cap main body with two open ends, a cylindrical filling body, a one-way valve filter assembly and a plurality of fixed joints; the upper part of the inner wall of the bottle cap main body is provided with a groove distributed along the circumferential direction of the bottle cap main body, and the lower part of the inner wall of the bottle cap main body is provided with an internal thread matched with the thread of the solvent bottle; the outer peripheral surface of the filler is provided with an annular flange along the circumferential direction, and the flange is embedded into the groove of the bottle cap main body, so that the filler can be sleeved at an upper end opening of the bottle cap main body in a circumferential rotating manner; a sealing ring is fixedly arranged on the outer edge of the bottom of the filling body; a plurality of perforated threaded openings are arranged on the filling body in a penetrating way; the upper part of the inner wall of the perforation screw hole is provided with internal threads; the one-way valve filter assembly comprises a tubular bearing device, a one-way valve and a filter which are sequentially connected; one end of the bearing device is bolted to one of the perforated threaded ports, and the other end of the bearing device is in threaded connection with the outlet end of the one-way valve; the filter is provided with a liquid inlet port, a liquid outlet port and a cavity arranged between the liquid inlet port and the liquid outlet port, and a filtering membrane is arranged in the cavity; the liquid discharge port is in threaded connection with the inlet end of the one-way valve; other perforated threaded ports of the filling body are bolted with the fixed joint.

The outer peripheral surface of the bottle cap main body is convexly provided with a circular tube-shaped pressing ring, and the peripheral surface of the pressing ring is uniformly provided with vertical stripes; the outer peripheral surface of the bottle cap main body is provided with a plurality of reinforcing ribs which are distributed in a radial mode, and the pressing ring is connected to the reinforcing ribs; the bottle cap main body and the pressing ring are of an integrated structure.

The check valve is a check valve with an opening pressure.

One of the plurality of perforated threaded openings is arranged in the middle of the filling body in a penetrating way, and the bearing device is bolted to the perforated threaded opening; the other perforated threaded openings are arranged around the perforated threaded opening.

The diameters of the plurality of perforated threaded openings are different.

The number of the plurality of perforation screw openings is 3-7.

Compared with the prior art, the beneficial effects of the utility model are that: this sealed lid can be used for connecting waste liquid bucket and reagent bottle, has the check valve filter, can prevent that harmful gas from volatilizing to the environment in, avoids causing the pollution to the environment, causes the threat to staff's health, but the obturator free activity need not to take off whole bottle lid when changing filter parts, avoids opening or when closing the lid, and the pipeline twines together.

Drawings

The above features and advantages of the present invention will become more apparent and readily appreciated from the following description of the exemplary embodiments thereof taken in conjunction with the accompanying drawings.

Fig. 1 is a schematic view of an overall structure of a sealing cap for a solvent bottle according to an embodiment of the present invention;

FIG. 2 is a schematic bottom view of a sealing cap for a solvent bottle according to an embodiment of the present invention;

fig. 3 is a cross-sectional view of the bottle cap body and the filling body according to the embodiment of the present invention.

Detailed Description

The invention will be described in further detail below with reference to the accompanying drawings so as to facilitate understanding by those skilled in the art:

reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "horizontal", "top", "bottom", "inner", "outer", "circumferential", and the like, indicate orientations and positional relationships based on the orientations and positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

As shown in fig. 1 to 3, the present embodiment provides a sealing cap for a solvent bottle, comprising:

bottle cap body 1

The bottle cap main body 1 is barrel-shaped with two open ends, the upper part of the inner wall of the bottle cap main body 1 is provided with two

flanges

11 and 12 which are distributed along the circumferential direction of the bottle cap main body, and a groove which is distributed along the circumferential direction of the bottle cap main body is formed between the

flanges

11 and 12. Below the groove, the lower portion of the inner wall of the bottle cap body 1 is formed with an internal thread 13 for screw-fitting with a solvent bottle.

The outer peripheral surface of bottle lid main part 1 is protruding to be equipped with and is the tubulose clamping ring 14 of circle, evenly is equipped with vertical stripe on the global of clamping ring 14 for twist bottle lid main part 1 and increase friction. The outer peripheral face of bottle lid main part 1 is equipped with a plurality of radial distributed's strengthening rib 15, and clamping ring 14 connect in on the strengthening rib, specific speaking, bottle lid main part 1, strengthening rib 15 and clamping ring 14 are injection moulding's structure as an organic whole. Through setting up clamping ring 14, the lateral wall of bottle lid main part has the vertical shape can easily unscrew the bottle lid to be difficult for droing.

Filling body 2

The filling body 2 is in a white cylinder shape, the outer peripheral surface of the filling body is provided with an annular flange 21 along the circumferential direction, and the flange 21 is embedded into the groove of the bottle cap main body 1, so that the filling body 2 is rotatably sleeved at the upper end opening of the bottle cap main body 1 and is relatively fixed in the axial direction. By such a construction, the filling body 2 can be rotated relative to the closure body 1 without the need to remove the entire connector line when screwing the closure body 1.

The bottom of the peripheral surface of the filling body 2 is provided with a circular groove, a sealing ring 22 is fixedly installed, and the lower part of the sealing ring 22 protrudes out of the lower bottom of the filling body 2 and is used for being matched with the bottle mouth of the solvent bottle in a sealing mode.

The filling body 2 is provided with a plurality of perforated threaded ports 23 with different diameters, and the upper part of the inner wall of the perforated threaded port 23 is provided with internal threads for connecting mobile phase pipelines and filters with different specifications. In the preferred embodiment, the number of perforated thread mouths 23 is 3-7.

The fixing heads 4 with different diameters can be bolted on the through thread opening 23 and are used for adapting pipelines with different specifications. The surface of the fixing head 4 is circular or square, the fixing head is composed of cylindrical rings with two diameters, compression rings with equal intervals are arranged on the side edges of the cylindrical rings with large diameters, threads are arranged on the cylindrical rings with small diameters along the circumferential direction to be screwed in threaded openings on the filling body, and different fixing heads are distinguished by multiple color marks. One of the perforated threaded ports 23 is not connected with the fixed head 4, but is used for connecting a one-way valve filter assembly, so that the volatile organic vapor is prevented from polluting the environment, and the health of workers is protected.

In a further preferred embodiment, one of the perforated threaded mouths 23 is provided through the middle of the packing body 2, to which the non-return valve filter assembly is bolted; around which further perforated thread mouths 23 are arranged.

One-way valve filter assembly 3

The check valve filter assembly 3 comprises a receiving means 31, a check valve 32 and a filter 33 connected in series. The receiving device 31 is tubular and is bolted at one end to a threaded opening 23 of the bore and at the other end to the outlet end of the non-return valve 32. The filter 33 has a liquid inlet port 331, a liquid outlet port 332, and a cavity 333 provided between the liquid inlet port 331 and the liquid outlet port 332, and a filter membrane is provided in the cavity 333. The drain port 332 is threaded with the inlet end of the check valve 32. The check valve 32 is a check valve having an opening pressure, whereby the check valve has two operating states, an open state and a closed state. The one-way valve only allows the organic solvent steam to flow towards one direction, and when the air pressure in the waste liquid barrel is smaller than a preset value, the one-way valve is in an opening state and is used for compensating the waste liquid barrel or the reagent bottle. When the pressure of the waste liquid barrel or the reagent bottle is larger than a preset value, the one-way valve is in a locking state, and the organic solvent is prevented from volatilizing into air.

It should be noted that the above is a detailed description of the present invention, and it should not be considered that the present invention is limited to the specific embodiments, and those skilled in the art can make various modifications and variations on the above embodiments without departing from the scope of the present invention.

Claims

1. A sealing cover for a solvent bottle is characterized in that: the bottle cap comprises a barrel-shaped bottle cap main body with two open ends, a cylindrical filling body, a one-way valve filter assembly and a plurality of fixed joints; the upper part of the inner wall of the bottle cap main body is provided with a groove distributed along the circumferential direction of the bottle cap main body, and the lower part of the inner wall of the bottle cap main body is provided with an internal thread matched with the thread of the solvent bottle; the outer peripheral surface of the filler is provided with an annular flange along the circumferential direction, and the flange is embedded into the groove of the bottle cap main body, so that the filler can be sleeved at an upper end opening of the bottle cap main body in a circumferential rotating manner; a sealing ring is fixedly arranged on the outer edge of the bottom of the filling body; a plurality of perforated threaded openings are arranged on the filling body in a penetrating way; the upper part of the inner wall of the perforation screw hole is provided with internal threads; the one-way valve filter assembly comprises a tubular bearing device, a one-way valve and a filter which are sequentially connected; one end of the bearing device is bolted to one of the perforated threaded ports, and the other end of the bearing device is in threaded connection with the outlet end of the one-way valve; the filter is provided with a liquid inlet port, a liquid outlet port and a cavity arranged between the liquid inlet port and the liquid outlet port, and a filtering membrane is arranged in the cavity; the liquid discharge port is in threaded connection with the inlet end of the one-way valve; other perforated threaded ports of the filling body are bolted with the fixed joint.

2. The sealing cap for a solvent bottle as set forth in claim 1, wherein: the outer peripheral surface of the bottle cap main body is convexly provided with a circular tube-shaped pressing ring, and the peripheral surface of the pressing ring is uniformly provided with vertical stripes; the outer peripheral surface of the bottle cap main body is provided with a plurality of reinforcing ribs which are distributed in a radial mode, and the pressing ring is connected to the reinforcing ribs; the bottle cap main body and the pressing ring are of an integrated structure.

3. The sealing cap for a solvent bottle as set forth in claim 1, wherein: the check valve is a check valve with an opening pressure.

4. A sealing cap for a solvent bottle according to any one of claims 1 to 3, wherein: one of the plurality of perforated threaded openings is arranged in the middle of the filling body in a penetrating way, and the bearing device is bolted to the perforated threaded opening; the other perforated threaded openings are arranged around the perforated threaded opening.

5. The sealing cap for a solvent bottle as set forth in claim 4, wherein: the diameters of the plurality of perforated threaded openings are different.

6. The sealing cap for a solvent bottle as set forth in claim 5, wherein: the number of the plurality of perforation screw openings is 3-7.