CN217466383U - Syringe needle for detecting initial gas content of hollow glass - Google Patents

Abstract

The utility model discloses a syringe needle for detecting the initial gas content of hollow glass, which comprises a rubber mat, a shell in the shape of a needle, an inner needle and a gas check valve, wherein the shell comprises an outer needle point and a needle rod which are fixedly connected, the rubber mat and the needle rod are fixedly arranged, a plurality of small holes are arranged around the shell below the bottom of the rubber mat, the inner needle is arranged in the shell, and the gas check valve is fixedly arranged outside the inner needle outside the shell; by adopting the scheme of the utility model, the utility model adopts the integral needle head, adopts the shell made of metal material as the pointed cone, and the inner needle inside the shell is used for gas taking, thereby avoiding that the gas leakage or the external atmospheric gas entering in the hollow cavity leads to inaccurate detection result in the gas taking process; the rubber mat and the needle head are integrally arranged, so that the problem of tightness in the gas taking process is solved, and the accuracy of the whole detection result is ensured.

Description

Syringe needle for detecting initial gas content of hollow glass

Technical Field

The utility model belongs to the glass detection field, more specifically says, the utility model relates to an injector needle that is used for initial gas content of cavity glass to detect.

Background

The hollow glass is a glass product with two or more pieces of glass which are uniformly separated by effective support and are sealed by bonding at the periphery, so that a dry gas space is formed between the glass layers. The spacing material in the hollow glass can be an aluminum spacing bar, a stainless steel spacing bar, a composite adhesive tape and the like, and the requirements of related standards and technical documents are met. The hollow cavity of the hollow glass needs to be filled with gases such as argon, nitrogen and the like.

According to the requirement in the detection 7.6.4.2 gas taking step of GB/T11944-2012 hollow glass: the sample is required to be vertically placed, the spacing frame is penetrated in the middle of the sample through the pointed cone, the airtight injector for exhausting air is immediately inserted into the hollow glass through the rubber mat, the air in the hollow cavity is pumped into the injector, then the air in the injector is pushed into the hollow cavity, and the air sample is pumped into the injector after the operation is repeated twice.

Therefore, the pointed cone needs to be pulled out in the process, the airtight injector for exhausting air can be inserted into the hollow glass, the air inside the hollow cavity is inevitably leaked or the air in the external air enters the hollow cavity, the internal air pressure and the external air pressure are unbalanced due to the fact that the air in the hollow cavity is not air, the internal air and the external air pressure of the hollow cavity are more easily mixed, and the detection result is inaccurate.

In the frequent air-taking step, the needle continuously penetrates through the rubber mat and is inserted into the hollow glass, so that the perforation of the rubber mat is gradually increased, the matching between the rubber mat and the needle is changed into excessive matching, and the gap generated between the needle and the rubber mat is gradually increased, thereby causing the poor tightness in the air-taking process and further causing the inaccurate detection result; the needle head also often shows molecular sieve blocking pinholes.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that an injector needle head for detecting the initial gas content of hollow glass with accurate detection data is provided.

In order to realize the purpose, the utility model discloses the technical scheme who takes does: the utility model provides a syringe needle for cavity glass initial gas content detects, includes cushion, the shape is acicular shell, interior needle and gaseous check valve, and the shell includes outer needle point and needle bar, fixed connection between outer needle point and the needle bar, wherein fixedly set up between cushion and the needle bar, is provided with a plurality of apertures around the shell below the cushion bottom, and interior needle sets up in the shell, and gaseous check valve is fixed to be set up in the outside interior needle outside of shell.

Through the above setting: the gas check valve is used for blocking the gas in the hollow cavity of the inner needle from being communicated with the atmosphere, the inner needle is divided into a hard tube and a hose, the hard tube is arranged in the shell, the hose is arranged outside the shell, and the gas check valve is arranged on the hose section.

The utility model discloses an injector needle head for detecting initial gas content of hollow glass, the aperture is dispersed from top to bottom and is arranged, and is not located within the same horizontal circumference.

The utility model discloses an injector needle head for detecting the initial gas content of hollow glass, the needle rod is divided into two sections, and the connection can be dismantled between two sections.

Through the above setting: the detachable connection is adopted, the shell can be detached, the shell is cleaned and dredged, and the detachable connection can be threaded connection, clamping connection, embedded connection and the like.

The utility model discloses a syringe needle for detecting the initial gas content of hollow glass, wherein the shell is made of metal.

Adopt the utility model discloses the scheme compares with prior art, has following beneficial effect:

1. the utility model discloses an integral syringe needle adopts the shell of metal material to be used for getting gas as sharp awl, the inside interior needle of shell, and the sharp awl of having avoided in the original detection procedure is extracting the back, will lead to the gas leakage in the cavity or outside atmospheric gas to get into, has ensured whole testing result's accuracy.

2. The utility model discloses a with fixed connection's between cushion and the syringe needle mode, can avoid in frequent gas step of getting, the syringe needle is continuous to pass the cushion and inserts cavity glass for the cushion is perforated and can be crescent, thereby has solved the leakproofness problem of getting the gas in-process, has ensured whole testing result's accuracy.

3. The small holes are distributed up and down and are not arranged in the same horizontal circumference, so that the strength of the shell can be ensured, and the ventilation effect can be realized; meanwhile, a certain gap is formed between the outer needle point and the inner needle point of the shell, so that the needle head is prevented from being directly contacted with the molecular sieve, and the needle head is prevented from being blocked.

4. Due to the detachability of the needle bar, the shell is convenient to take down, and the molecular sieve which enters the shell carelessly is cleaned.

5. The syringe needle afterbody is provided with gaseous check valve, avoids the syringe piston when the twitching, prevents that cavity intracavity gas and outside air contact from mixing, has further ensured the accuracy of whole testing result.

The present invention will be described in more detail with reference to the accompanying drawings and examples.

Drawings

The contents of the description and the references in the drawings are briefly described as follows:

fig. 1 is a schematic view of the present invention.

Labeled as: 1. a housing; 2. an inner needle; 3. a rubber pad; 4. a small hole; 5. a thread; 6. a gas check valve; 7. a needle bar; 8. an outer needle tip.

Detailed Description

The following description of the embodiments of the present invention, with reference to the accompanying drawings, will be made in further detail to explain, for example, the shapes and structures of the components, the mutual positions and connection relationships among the components, the functions and working principles of the components, the manufacturing process, and the operation and use method of the components, so as to help those skilled in the art to understand the concept and technical solutions of the present invention more completely, accurately and deeply.

The syringe needle for detecting the initial gas content of the hollow glass as shown in fig. 1 comprises a rubber cushion 3, a shell 1 in a needle shape, an inner needle 2 and a gas check valve 6, wherein the shell 1 comprises an outer needle point 8 and a needle rod 7, the outer needle point 8 is fixedly connected with the needle rod 7, the rubber cushion 3 is fixedly arranged with the needle rod 7, a plurality of small holes 4 are formed in the periphery of the shell 1 below the bottom of the rubber cushion 3, the inner needle 2 is arranged in the shell 1, and the gas check valve 6 is fixedly arranged outside the inner needle 2 outside the shell 1; the small holes 4 are distributed on the side wall of the shell 1 in an up-and-down dispersion way and are not positioned in the same horizontal circumference; the needle bar 7 is divided into two sections which are detachably connected; the housing 1 is a case made of metal.

Principle and method of operation

According to the detection requirements of GB/T11944-: with the vertical sample of placing, during shell 1 inserted cavity glass, pierce through the space frame with 1 needle point 7 of shell in the sample middle part, insert the interior needle 2 of the exhaust gas body through cushion 3 immediately, cushion 3 will laminate the spacer surface at this in-process, get gas and detect, with the gas suction syringe in the cavity, then push the cavity in the gas in the syringe again, so after carrying out twice repeatedly, with gas sample suction syringe.

The present invention has been described above with reference to the accompanying drawings, and it is obvious that the present invention is not limited by the above-mentioned manner, and various insubstantial improvements can be made without modification to the method and technical solution of the present invention, or the present invention can be directly applied to other occasions without modification, all within the scope of the present invention.

Claims (4)

1. The utility model provides a syringe needle that is used for initial gas content of cavity glass to detect, a serial communication port, including cushion (3), shell (1) that the shape is the aciculiform, interior needle (2) and gas check valve (6), shell (1) includes outer needle point (8) and needle bar (7), fixed connection between outer needle point (8) and the needle bar (7), wherein fixed the setting between cushion (3) and needle bar (7), shell (1) below cushion (3) bottom is provided with a plurality of apertures (4) all around, interior needle (2) set up in shell (1), gas check valve (6) are fixed to be set up in the outside interior needle (2) outside of shell (1).

2. The syringe needle for detecting the initial gas content in hollow glass according to claim 1, wherein the small holes (4) are distributed up and down on the side wall of the shell (1) and are not positioned in the same horizontal circumference.

3. The syringe needle for detecting the initial gas content of hollow glass according to claim 1, characterized in that the needle rod (7) is divided into two sections, and the two sections are detachably connected.

4. A syringe needle for detecting the initial gas content of hollow glass according to claim 1, characterized in that the casing (1) is a metal casing.

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