A glass instrument interface sealing device for detection

Abstract

The present invention discloses a glass instrument interface sealing device for detection, which belongs to the field of instruments and meters. The device comprises a reagent bottle and a reflux pipe, wherein the interface of the reflux pipe and the interface of the reagent bottle are coated with paraffin wax, and the end of the reflux pipe extending into the reagent bottle has an annular receiving portion, and an annular receiving groove is provided on the receiving portion along the axis of the reflux pipe for collecting melted paraffin wax. The present invention provides a glass instrument interface sealing device for detection, wherein due to the effect of the surface tension of the liquid, the melted paraffin wax will flow down along the tube wall of the reflux pipe, and then enter the receiving groove, and the receiving groove is used to receive the melted paraffin wax, so as to prevent the paraffin wax from dripping into the reagent bottle, thereby preventing the dripped paraffin wax from affecting the experimental accuracy.

Description

Technical Field

[0001] The invention relates to the field of instruments and meters, and in particular to a glass instrument interface sealing device for detection. Background Art

[0002] In the field of biochemical medicine, it is often necessary to do some chemical experiments. In the experiment, it is inevitable to connect various glass instruments such as reagent bottles and reflux pipes. In general experiments, the sealing requirements at the interface are high. In the prior art, the interface of the glass instrument is generally frosted, and the concave-convex structure of the frosted surface is used to cooperate to achieve sealing. In the field of traditional Chinese medicine detection, some gas residue experiments such as sulfur dioxide residue detection need to be done. Since sulfur dioxide or other gases exist in a gaseous state in such experiments, the sealing requirements are high, and the use of frosted surfaces to achieve sealing cannot effectively achieve the effect of sealing the gas. Therefore, the experimenter will achieve the effect of sealing by coating materials such as paraffin at the interface to fill the gap with paraffin. However, since it is often necessary to heat the glass instrument in the experiment, the heating causes the paraffin to melt, and it will flow down along the interface into the container, affecting the accuracy of the experiment. Summary of the invention

[0003] The invention provides a glass instrument interface sealing device for detection, which can solve the problem in the prior art that the sealing of the glass instrument interface easily affects the experimental accuracy.

[0004] A glass instrument interface sealing device for detection includes a reagent bottle and a reflux tube, wherein the interface of the reflux tube and the interface of the reagent bottle are coated with paraffin, and the end of the reflux tube extending into the reagent bottle is provided with an annular receiving portion, and an annular receiving groove is provided on the receiving portion along the axis of the reflux tube for collecting melted paraffin.

[0005] More preferably, it also includes a ring-shaped connecting part, one end of which is connected to one end of the reflux pipe extending into the reagent bottle, the end of the connecting part away from the reflux pipe has a first magnetic attraction layer, and one end of the storage part has a second magnetic attraction layer that cooperates with the first magnetic attraction layer, the first magnetic attraction layer and the second magnetic attraction layer attract each other to connect the connecting part and the storage part.

[0006] More preferably, it also includes a sealing clamp, which includes a sealing member, a first clamp and a second clamp, the first clamp and the second clamp are cross-arranged, and the first clamp and the second clamp are connected by an elastic member to bring the first clamp and the second clamp close to each other; the sealing member includes an elastic wrapping portion, a first sealing portion and a second sealing portion, the elastic wrapping portion, the first sealing portion and the second sealing portion are all made of elastic material, the two ends of the elastic wrapping portion are respectively connected to the first clamp and the second clamp, one end of the first sealing portion is connected to one end of the elastic wrapping portion, one end of the second sealing portion is connected to the other end of the elastic wrapping portion, the other end of the second sealing portion is extended to a side of the first sealing portion close to the elastic wrapping portion, the second sealing portion is elastic, and the first sealing portion is used to press the second sealing portion.

[0007] More preferably, a limiting portion is extended from one end of the first clamping plate located at the elastic wrapping portion, and the limiting portion is an arc-shaped structure extending toward the elastic wrapping portion for supporting the first sealing portion.

[0008] More preferably, an elastic metal plate is embedded in the first sealing portion to support the first sealing portion.

[0009] More preferably, the second sealing portion is in an arc-shaped structure, the arc radius of the second sealing portion is smaller than the arc radius of the first sealing portion, and an elastic metal sheet is embedded in the second sealing portion for supporting the second sealing portion.

[0010] More preferably, the first sealing portion, the second sealing portion and the elastic wrapping portion are all made of silicone material.

[0011] More preferably, a first arc portion is formed on a side of the first sealing portion that is close to the second sealing portion and away from the elastic wrapping portion.

[0012] More preferably, a second arc portion is formed on a side of the second sealing portion that is close to the first sealing portion and away from the elastic wrapping portion.

[0013] More preferably, a lubricating coating is coated on the side of the second sealing portion close to the first sealing portion.

[0014] The invention provides a glass instrument interface sealing device for detection. Due to the effect of liquid surface tension, melted paraffin will flow down along the tube wall of a reflux pipe and then enter a receiving groove. The receiving groove is used to accommodate the melted paraffin to prevent the paraffin from dripping into a reagent bottle, thereby preventing the dripped paraffin from affecting the experimental accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1A schematic diagram of the structure of the connection state of a glass instrument interface sealing device for detection provided by the present invention;

[0016] Figure 2 for Figure 1 Middle AA section view;

[0017] Figure 3 for Figure 2 A partial enlarged view of point B in the middle;

[0018] Figure 4 The working status of the sealing clamp is shown in Figure 1. Figure 1 ;

[0019] Figure 5 The working status of the sealing clamp is shown in Figure 1. Figure 2 ;

[0020] Figure 6 for Figure 5 A top view of

[0021] Figure 7 for Figure 5 Structure diagram of the middle sealing clamp Figure 1 ;

[0022] Figure 8 for Figure 7 A partial enlarged view of point C in the middle;

[0023] Fig. 9 for Figure 5 Structure diagram of the middle sealing clamp Figure 2 .

[0024] Description of reference numerals:

[0025] 10. Reagent bottle, 20. Reflux pipe, 30. Sealing clamp, 31. First splint, 311. Limiting portion, 32. Second splint, 33. Elastic wrapping portion, 331. First sealing portion, 3311. First arc portion, 332. Second sealing portion, 3321. Second arc portion, 40. Connecting portion, 401. First magnetic attraction layer, 41. Second magnetic attraction layer, 42. Storage portion, 421. Storage slot. DETAILED DESCRIPTION

[0026] A specific implementation of the present invention is described in detail below in conjunction with the accompanying drawings, but it should be understood that the protection scope of the present invention is not limited by the specific implementation.

[0027] Embodiment 1:

[0028] like Figures 1 to 3As shown, an embodiment of the present invention provides a glass instrument interface sealing device for detection, including a reagent bottle 10 and a reflux tube 20. The reagent bottle 10 has a bottle mouth, and one end of the reflux tube 20 has an interface section. The inner ring of the bottle mouth and the interface section are both frosted structures. The interface section of the reflux tube 20 and the inner ring of the bottle mouth of the reagent bottle 10 are coated with paraffin. Of course, it is understandable that only one of the above can be coated, and the paraffin is filled between the two after connection. The end of the reflux tube 20 extending into the reagent bottle 10 has an annular receiving portion 42, and a clearance hole is opened on the receiving portion 42 to prevent the reflux channel of the reflux tube 20 from being blocked. The receiving portion 42 is provided with an annular receiving groove 421 along the axis of the reflux tube 20 for collecting melted paraffin. As shown Figure 3 As shown, the storage groove 421 is opened on the outer circle of the storage part 42, and the overall structure is C-shaped. Of course, it can also be in other shapes, as long as the storage groove 421 has a tendency to sink downward, it can accommodate a certain volume of melted paraffin without overflowing. Since the paraffin coated at the interface is only used to seal, the dosage is generally small. For some conditions where a larger caliber needs to be coated with a larger dose of paraffin, it is only necessary to design the storage capacity of the storage groove 421 according to actual needs. After the paraffin is melted by heat, it will flow downward along the outer wall of the reflux pipe 20, flow to the storage groove 421, and flow into the storage groove 421. After the experiment is completed, just take out the reflux pipe 20 and clean it.

[0029] Embodiment 2:

[0030] Different from the first embodiment, the present embodiment further includes a ring-mounted connecting portion 40, one end of which is connected to the end of the reflux pipe 20 extending into the reagent bottle 10, and the connection between the connecting portion 40 and the reflux pipe 20 is adapted to the shape of the lower end face of the reflux pipe 20. When the lower end face of the reflux pipe 20 is a flat end face perpendicular to the central axis of the reflux pipe 20, the connecting surface of the connecting portion 40 is also a plane. When the lower end face of the reflux pipe 20 has a certain inclined angle with the central axis of the reflux pipe 20, the connecting end face of the connecting portion 40 also has a matching angle. Finally, it is only necessary to ensure that the storage groove 421 is arranged horizontally to prevent the paraffin in the storage groove 421 from overflowing. The end of the connecting portion 40 away from the reflux pipe 20 has a first magnetic attraction layer 401, and one end of the storage portion 42 has a second magnetic attraction layer 41 matching the first magnetic attraction layer 401. The first magnetic attraction layer 401 and the second magnetic attraction layer 41 attract each other to connect the connecting portion 40 and the storage portion 42. The first magnetic attraction layer 401 and the second magnetic attraction layer 41 can be made directly of magnetic materials to achieve adsorption of the two. The connecting portion 40 is connected to the return pipe 20 by one-piece molding or other fixed connection methods such as bonding. This setting can facilitate the replacement of the storage portion 42. For different interface types, the storage portion 42 with storage slots 421 of different sizes can be replaced. It is also convenient for cleaning the storage portion 42 after the experiment is completed. There is no need to clean the entire return pipe 20 at the same time. It is only necessary to separate the first magnetic attraction layer 401 and the second magnetic attraction layer 41 to separate the return pipe 20 from the storage portion 42, which is convenient for cleaning the storage portion 42.

[0031] Embodiment three:

[0032] Based on the first or second embodiment, this embodiment further includes a sealing clamp 30, such as Figures 4 to 9As shown, the sealing clamp 30 includes a sealing member, a first clamping plate 31 and a second clamping plate 32. The first clamping plate 31 and the second clamping plate 32 are cross-arranged and connected at the intersection by a torsion spring. Of course, other elastic components that can enable the first clamping plate 31 and the second clamping plate 32 to approach each other and achieve a clamping function can also be used; the sealing member includes an elastic wrapping portion 33, a first sealing portion 331 and a second sealing portion 332. The elastic wrapping portion 33, the first sealing portion 331 and the second sealing portion 332 are all made of elastic materials. Since the outer diameters of the interface between the reagent bottle 10 and the reflux pipe 20 are inconsistent, it is not easy for ordinary sealing materials to maintain sealing. The elastic material can be deformed under the action of pressure, and at the same time wrap around the mouth of the reagent bottle 10 and the mouth of the reflux pipe 20 with different outer diameters. The two ends of the elastic wrapping part 33 are respectively connected to the first splint 31 and the second splint 32, one end of the first sealing part 331 is connected to one end of the elastic wrapping part 33, and one end of the second sealing part 332 is connected to the other end of the elastic wrapping part 33. The other end of the second sealing part 332 is extended to the side of the first sealing part 331 close to the elastic wrapping part 33. The second sealing part 332 is elastic, and the first sealing part 331 is used to press the second sealing part 332. The elastic wrapping part 33, the first sealing part 331 and the second sealing part 332 can be made of the same material or different materials, and can be integrally formed or separately fixedly connected together. The two ends of the elastic wrapping part 33 are respectively connected to the first splint 31 and the second splint 32, and the first splint 31 and the second splint 32 can drive the elastic wrapping part 33 to deform. Figure 4 and Figure 5 As shown, when in use, it is only necessary to press the first splint 31 and the second splint 32 to expand the two, and place the elastic wrapping part 33 close to the connection, and press toward the connection so that the elastic wrapping part 33 covers the interface. The second sealing part 332 is on the inside at this time, and the first sealing part 331 is on the outside, so that the second sealing part 332 wraps the connection, and the end of the second sealing part 332 contacts the elastic wrapping part 33 or the first sealing part 331, and the first sealing part 331 presses the second sealing part 332, so that the elastic wrapping part 33, the first sealing part 331 and the second sealing part 332 form an integral annular sealing structure to achieve sealing of the connection. Since the interface outer diameters of the reflux pipe 20 and the reagent bottle 10 have various specifications, conventional designs require different types of sealing structures to be designed for each outer diameter structure. However, through the solution of this embodiment, since the second sealing portion 332 has a certain length, the length of the second sealing portion 332 extending into the first sealing portion 331 or the elastic wrapping portion 33 can be adjusted, so that glasses with various different outer diameters can be easily sealed. Figure 4 and Figure 5The state shown is a schematic diagram of the connection state, which is not the final working state. In the final working state, the first sealing part 331, the second sealing part 332 and the elastic wrapping part 33 will be deformed, with a part covering the reflux pipe 20 and a part covering the outside of the mouth of the reagent bottle 10. The figure shows the structure for a clearer expression. In actual use, the thickness of the first sealing part 331, the second sealing part 332 and the elastic wrapping part 33 is relatively thick, and the thickness is at least greater than or equal to the difference between the maximum outer diameter of the mouth of the reagent bottle 10 and the outer diameter of the reflux pipe 20. That is, the first sealing part 331, the second sealing part 332 and the elastic wrapping part 33 should have enough deformation margin to compensate for the gap formed between the outer diameter of the mouth of the reagent bottle 10 and the outer diameter of the reflux pipe 20.

[0033] Embodiment 4:

[0034] On the basis of the third embodiment, in this embodiment, Figure 7 As shown, a limiting portion 311 is extended from one end of the first clamping plate 31 located at the elastic wrapping portion 33, and the limiting portion 311 is an arc-shaped structure extending toward the elastic wrapping portion 33, and is used to support the first sealing portion 331. The arc radius of this arc-shaped structure can be set according to the interface range to be matched, so that the arc radius of the limiting portion 311 is larger than the outer diameter of the largest interface to be connected.

[0035] Embodiment five:

[0036] Different from the fourth embodiment, in this embodiment, an elastic metal plate is embedded in the first sealing portion 331 to support the first sealing portion 331. At this time, since the elastic metal plate can drive the first sealing portion 331 to deform, the arc radius can be set according to actual needs, as long as it is ensured that the first sealing portion 331 or the elastic wrapping portion 33 can press the second sealing portion 332 during connection.

[0037] Embodiment six:

[0038] For more convenient use, on the basis of the third, fourth or fifth embodiment, the second sealing part 332 is an arc-shaped structure, the arc radius of the second sealing part 332 is smaller than the arc radius of the first sealing part 331, and an elastic metal sheet is embedded in the second sealing part 332 to support the second sealing part 332. When in use, due to the supporting effect of the elastic metal sheet in the second sealing part 332, the second sealing part 332 has a certain rigidity, so that after the elastic wrapping part 33 wraps the interface, the second sealing part 332 will be squeezed to the elastic wrapping part 33 or the first sealing part 331 under the pressure of the first sealing part 331, thereby achieving a sealed connection.

[0039] Embodiment seven:

[0040] The first sealing portion 331, the second sealing portion 332 and the elastic wrapping portion 33 in the third, fourth, fifth or sixth embodiment are all made of silicone material. The silicone material has good sealing properties and easy deformation, and can achieve a good sealing effect.

[0041] Embodiment eight:

[0042] On the basis of the third to seventh embodiments, a first arc portion 3311 is formed on a side of the first sealing portion 331 away from the elastic wrapping portion 33 and close to the second sealing portion 332 .

[0043] A second arc portion 3321 is formed on a side of the second sealing portion 332 away from the elastic wrapping portion 33 and close to the first sealing portion 331 .

[0044] The first arc portion 3311 and the second arc portion 3321 can play a good guiding role when the second sealing portion 332 is squeezed by the elastic wrapping portion 33 or the first sealing portion 331 , making the squeezing process faster and more convenient.

[0045] Embodiment nine:

[0046] On the basis of the third to eighth embodiments, a lubricating coating is coated on the side of the second sealing part 332 close to the first sealing part 331. Since silicone has a certain viscosity, when the second sealing part 332 is pressed inward and squeezed, it may be hindered to a certain extent, requiring manual assistance. By coating the side of the second sealing part 332 close to the first sealing part 331 with a lubricating coating, the lubricating coating can reduce the friction between the first sealing part 331 and the second sealing part 332 or the elastic wrapping part 33 and the second sealing part 332, thereby facilitating the "self-wrapping" of the second sealing part 332. The lubricating coating can be a polytetrafluoroethylene coating or other coating materials with a lower friction coefficient.

[0047] The above disclosures are only several specific embodiments of the present invention. However, the embodiments of the present invention are not limited thereto. Any changes that can be conceived by those skilled in the art should fall within the protection scope of the present invention.

Claims

1. A glass instrument interface sealing device for detection, characterized in that: It comprises a reagent bottle and a reflux pipe, wherein the interface of the reflux pipe and the interface of the reagent bottle are coated with paraffin, and the end of the reflux pipe extending into the reagent bottle is provided with an annular receiving portion, and an annular receiving groove is provided on the receiving portion along the axis of the reflux pipe for collecting melted paraffin; It also includes a ring-shaped connecting part, one end of which is connected to one end of the reflux pipe extending into the reagent bottle, the end of the connecting part away from the reflux pipe has a first magnetic attraction layer, one end of the receiving part has a second magnetic attraction layer matching the first magnetic attraction layer, the first magnetic attraction layer and the second magnetic attraction layer attract each other to connect the connecting part and the receiving part; It also includes a sealing clamp, which includes a sealing member, a first clamping plate and a second clamping plate, the first clamping plate and the second clamping plate are cross-arranged, and the first clamping plate and the second clamping plate are connected by an elastic member to bring the first clamping plate and the second clamping plate closer to each other; the sealing member includes an elastic wrapping portion, a first sealing portion and a second sealing portion, the elastic wrapping portion, the first sealing portion and the second sealing portion are all made of elastic materials, two ends of the elastic wrapping portion are respectively connected to the first clamping plate and the second clamping plate, one end of the first sealing portion is connected to one end of the elastic wrapping portion, one end of the second sealing portion is connected to the other end of the elastic wrapping portion, and the other end of the second sealing portion is extended to a side of the first sealing portion close to the elastic wrapping portion, the second sealing portion is elastic, and the first sealing portion is used to press the second sealing portion; A limiting portion is extended from one end of the first clamping plate located at the elastic wrapping portion, and the limiting portion is an arc-shaped structure extending toward the elastic wrapping portion, and is used to support the first sealing portion; An elastic metal plate is embedded in the first sealing portion to support the first sealing portion; The second sealing portion is in an arc-shaped structure, the arc radius of the second sealing portion is smaller than the arc radius of the first sealing portion, and an elastic metal sheet is embedded in the second sealing portion for supporting the second sealing portion; The first sealing portion, the second sealing portion and the elastic wrapping portion are all made of silicone material; A first arc portion is formed on one side of the first sealing portion away from the elastic wrapping portion and close to the second sealing portion; A second arc portion is formed on one side of the second sealing portion that is away from the elastic wrapping portion and close to the first sealing portion; A lubricating coating is coated on a side of the second sealing portion adjacent to the first sealing portion.

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