VOCs online detection device

Abstract

The utility model is suitable for the technical field of detection equipment, and provides a VOCs (Volatile Organic Compounds) on-line detection device which comprises a detector with a material injection port at the top; the protection assembly is installed at the injection port and used for protecting an injector, the protection assembly comprises a shell installed outside the injection port and a sliding inner core connected to the interior of the shell in a sliding mode, and a protection tube used for protecting a needle tube of the injector is arranged at the bottom of the sliding inner core; an insertion hole is formed in the sliding inner core, the injector is inserted into the insertion hole, and after the sliding inner core is stressed, the protection tube is inserted into the injection port, so that the structure for protecting the injector is arranged, and when a sample is quickly injected into the detector, the injector can be prevented from being damaged by the injection port. The injector is protected through the protection piece, and the injector is prevented from being bent and damaged when being rapidly inserted.

Description

Technical Field

[0001] The utility model relates to the technical field of detection equipment, in particular to a VOCs online detection device. Background Art

[0002] In my country, VOCs (volatile organic compounds) usually refer to organic compounds with a saturated vapor pressure greater than 133.32 Pa at room temperature and a boiling point below 50-260°C at normal pressure, or any organic solid or liquid that can volatilize at room temperature and pressure.

[0003] In the prior art, gas chromatography (GC) technology is currently used to detect VOCs: this is a commonly used VOCs detection technology that can separate and measure VOCs in the air and can accurately measure the type and concentration of VOCs, but the detection time is long and requires professional operation. In addition, when using a micro-syringe for injection, due to the need for fast speed, the needle of the syringe is easily bent, affecting the service life of the syringe.

[0004] In summary, the prior art obviously has inconveniences and defects in practical use, so it is necessary to improve it. Utility Model Content

[0005] In view of the above-mentioned defects, the purpose of the utility model is to provide a VOCs online detection device, which can be equipped with a structure to protect the syringe, so as to ensure that when the sample is quickly injected into the interior of the detector, the syringe is protected by the protective part to prevent the syringe from bending and being damaged when it is quickly inserted.

[0006] In order to achieve the above-mentioned purpose, the utility model provides a VOCs online detection device, comprising: a detector with an injection port on the top; a protection component installed at the injection port to protect the syringe, the protection component comprising a shell installed on the outside of the injection port and a sliding inner core slidably connected to the inside of the shell, a protection tube for protecting the needle tube of the syringe is provided at the bottom of the sliding inner core, a socket is provided inside the sliding inner core, the syringe is inserted inside the socket, and after the sliding inner core is subjected to force, the protection tube is inserted into the inside of the injection port.

[0007] According to the VOCs online detection device of the utility model, a threaded hole is provided at the bottom of the shell, a screw connection portion cooperating with the threaded hole is provided on the outer wall of the injection port, a limiting flange is provided on the top of the threaded hole, and a first thrust spring is provided between the limiting flange and the sliding inner core.

[0008] According to the VOCs online detection device of the utility model, the protection component also includes: an intermediate sleeve detachably slidably connected to the inside of the shell, and the intermediate sleeve presses down the shell of the syringe after the syringe is inserted; a force-bearing member slidably connected to the inside of the intermediate sleeve to press the pressing rod of the syringe, and a second thrust spring is provided between the force-bearing member and the intermediate sleeve, and the elastic force of the second thrust spring is greater than the elastic force of the first thrust spring.

[0009] According to the VOCs online detection device of the utility model, a convex edge is provided on the top of the shell of the syringe, the convex edge is arranged between the middle sliding sleeve and the sliding inner core, and a rubber plug is provided inside the injection port.

[0010] According to the VOCs online detection device of the utility model, a limiting portion is provided at the bottom of the force-bearing member, a limiting plate cooperating with the limiting portion is provided on the inner side of the top of the middle sliding sleeve, and a pressing portion is provided on the top of the force-bearing member.

[0011] According to the VOCs online detection device of the utility model, a display panel and operation buttons are provided on the front side of the detector.

[0012] The utility model provides a VOCs online detection device, comprising: a detector with a material injection port at the top, through which a sample to be detected is injected into the interior of the detector, and then the VOCs in the sample are analyzed by the detector itself, and then the data is uploaded to a corresponding client through the detector, so as to ensure real-time detection of the data of the detector; a protective component installed at the material injection port for protecting the syringe, so as to ensure that the protective component can be installed on different detectors, so as to ensure the detachability and versatility of the protective component, the protective component comprises a shell installed outside the material injection port and a sliding inner core slidably connected to the interior of the shell, a protective tube for protecting the needle tube of the syringe is provided at the bottom of the sliding inner core, the needle tube of the syringe is protected by the protective tube, so as to ensure that When the syringe is quickly inserted into the interior of the detector, the protective tube is used to prevent the needle tube from bending and deforming, and the needle tube is protected. A socket is provided inside the sliding inner core, and the syringe is inserted into the socket. At this time, the outer shell of the syringe is inserted into the interior of the socket and the needle tube of the syringe is inserted into the interior of the protective tube, completing the placement and installation of the syringe, which is convenient for the subsequent rapid injection of the sample into the interior of the detector. After the sliding inner core is subjected to force, the protective tube is inserted into the interior of the injection port to ensure that the sample can be injected into the interior of the detector. In summary, the technical effect produced by the utility model is that a structure for protecting the syringe is provided to ensure that when the sample is quickly injected into the interior of the detector, the syringe is protected by the protective part to prevent the syringe from bending and damage during rapid insertion. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0014] Figure 2 It is a schematic diagram of the cross-sectional structure of the protection component of the utility model;

[0015] Figure 3 It is a three-dimensional structural schematic diagram of the detector of the utility model;

[0016] Figure 4 It is a schematic diagram of the three-dimensional structure of the sliding inner core of the utility model;

[0017] In the figure, 1-detector, 11-injection port, 12-rubber plug, 2-display panel, 3-operation button, 4-housing, 42-limiting flange, 43-threaded part, 5-middle sliding sleeve, 6-second thrust spring, 7-pressing piece, 8-first thrust spring, 9-sliding inner core, 91-protective tube, 92-jack. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical solutions and advantages of the utility model more clearly understood, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0019] See also Figure 1 , Figure 2 and Figure 3The utility model provides a VOCs online detection device, which includes a detector 1 with an injection port 11 on the top, through which the sample to be detected is injected into the detector 1, and then the VOCs in the sample are analyzed by the detector 1 itself, and then the data is uploaded to the corresponding client through the detector 1, so as to ensure the real-time detection of the data of the detector 1; a protective component installed at the injection port 11 to protect the syringe, so as to ensure that the protective component can be installed on different detectors 1, and to ensure the detachability and versatility of the protective component, the protective component includes a shell 4 installed outside the injection port 11 and a sliding inner core 9 slidably connected to the inside of the shell 4, the sliding A protective tube 91 for protecting the needle tube of the syringe is provided at the bottom of the inner core 9. The needle tube of the syringe is protected by the protective tube 91 to ensure that when the syringe is quickly inserted into the interior of the detector 1, the protective tube 91 prevents the needle tube from bending and deforming, thereby protecting the needle tube. A plug hole 92 is provided inside the sliding inner core 9, and the syringe is inserted into the plug hole 92. At this time, the outer shell of the syringe is inserted into the interior of the plug hole 92 and the needle tube of the syringe is inserted into the protective tube 91, completing the placement and installation of the syringe, which is convenient for the subsequent rapid injection of the sample into the interior of the detector 1. After the sliding inner core 9 is subjected to force, the protective tube 91 is inserted into the interior of the injection port 11 to ensure that the sample can be injected into the interior of the detector 1.

[0020] See also Figure 1 to Figure 4 Preferably, a threaded hole is provided at the bottom of the shell 4 of the utility model, and a screw connection portion 43 cooperating with the threaded hole is provided on the outer wall of the injection port 11. The threaded hole and the screw connection portion 43 cooperate to ensure that the shell 4 can be disassembled and installed outside the injection port 11, and the installation and disassembly of the protective component are ensured. A limiting flange 42 is provided at the top of the threaded hole, and a first thrust spring 8 is provided between the limiting flange 42 and the sliding inner core 9. The first thrust spring 8 ensures the resetting of the sliding inner core 9, so that after the injection is completed, the sliding inner core 9 can be reset, and the protective tube 91 can be pulled out from the inside of the injection port 11, which is convenient for sealing the injection port 11.

[0021] In addition, the protection component of the utility model also includes: an intermediate sleeve 5 detachably connected to the inside of the shell 4, the intermediate sleeve 5 presses down the shell of the syringe after the syringe is inserted, ensuring that the sliding inner core 9 can be pressed down to the bottom, so that the protection tube 91 is pressed down to the inside of the injection hole, preventing the rubber plug 12 inside the injection port 11 from damaging the needle tube of the syringe; a force-bearing member 7 slidably connected to the inside of the intermediate sleeve 5 for pressing the pressing rod of the syringe, and the pressing rod of the syringe is pressed down by the force-bearing member 7, so that the sample material inside the syringe is injected into the inside of the detector 1, and a second thrust spring 6 is provided between the force-bearing member 7 and the intermediate sleeve 5, and the elastic force of the second thrust spring 6 is greater than the elastic force of the first thrust spring 8, ensuring that when the force-bearing member 7 is pressed, the intermediate sleeve 5 at this time can first press the sliding inner core 9 to slide downward, ensuring that the protection tube 91 can be pressed into the inside of the injection port 11 first, and then the pressing rod is pressed to inject the sample, thereby completing the protection effect on the needle tube.

[0022] Furthermore, the top of the shell of the syringe of the utility model is provided with a convex edge, and the convex edge is arranged between the middle sliding sleeve 5 and the sliding inner core 9, so as to ensure that the shell of the syringe can be pressed downward to slide synchronously with the sliding inner core 9, and a rubber plug 12 is arranged inside the injection port 11, and the rubber plug 12 ensures the sealing of the injection port 11, and at the same time ensures that the protective tube 91 and the needle tube can be inserted into the injection port 11, and at the same time ensures that after the protective tube 91 and the needle tube are pulled out, the rubber plug 12 can seal the injection port 11, and a limiting part is provided at the bottom of the force-bearing member 7, and a limiting plate cooperating with the limiting part is provided on the inner side of the top of the middle sliding sleeve 5, and the limiting plate and the limiting part limit the position of the pressing member 7 and the middle sliding sleeve 5 to prevent the pressing member 7 from sliding out of the middle sliding sleeve 5, and a pressing part is provided on the top of the force-bearing member 7, and a display panel 2 and an operation button 3 are provided on the front side of the detector 1.

[0023] In this embodiment, see Figure 1 to Figure 4 When in use, first install the shell 4 on the injection port 11, then insert the sliding inner core 9 into the shell 4, sample the material to be tested through the syringe, quickly insert the syringe into the inside of the jack 92, and then the needle tube is inserted into the inside of the protective tube 91, and then the middle sleeve 5 is manually inserted into the top of the shell 4, and then the force-bearing piece 7 is pressed. At this time, the middle sleeve 5 presses the sliding inner core 9 down under the action of the second thrust spring 6 until the sliding inner core 9 is inserted into the inside of the injection port 11, and then the force-bearing piece 7 continues to be pressed down. The force-bearing piece 7 compresses the second thrust spring 6, and the bottom of the force-bearing piece 7 abuts against the pressing rod, so that the pressing rod injects the sample inside the syringe into the inside of the injection port 11, completes the injection, and then pulls out the force-bearing piece 7 from the inside of the shell 4, and the protective tube 91 is pulled out from the inside of the rubber stopper 12 under the action of the first thrust spring 8.

[0024] In summary, the utility model provides a VOCs online detection device, including: a detector with a material injection port on the top, through which the sample to be detected is injected into the interior of the detector, and then the VOCs in the sample are analyzed by the detector itself, and then the data is uploaded to the corresponding client through the detector, so as to ensure the real-time detection of the data of the detector; a protective component installed at the material injection port to protect the syringe, so as to ensure that the protective component can be installed on different detectors, and to ensure the detachability and versatility of the protective component, the protective component includes a shell installed on the outside of the material injection port and a sliding inner core slidably connected to the inside of the shell, the bottom of the sliding inner core is provided with a protective tube for protecting the needle tube of the syringe, and the needle tube of the syringe is protected by the protective tube, To ensure that when the syringe is quickly inserted into the interior of the detector, the protective tube is used to prevent the needle tube from bending and deforming, and the needle tube is protected. A socket is provided inside the sliding inner core, and the syringe is inserted inside the socket. At this time, the outer shell of the syringe is inserted into the interior of the socket and the needle tube of the syringe is inserted into the interior of the protective tube, completing the placement and installation of the syringe, which is convenient for the subsequent rapid injection of the sample into the interior of the detector. After the sliding inner core is subjected to force, the protective tube is inserted into the interior of the injection port, ensuring that the sample can be injected into the interior of the detector. In summary, the technical effect produced by the utility model is that a structure for protecting the syringe is provided, ensuring that when the sample is quickly injected into the interior of the detector, the syringe is protected by the protective part to prevent the syringe from bending and damage during rapid insertion.

[0025] Of course, the present invention may have many other embodiments. Without departing from the spirit and essence of the present invention, technicians familiar with the field can make various corresponding changes and deformations based on the present invention, but these corresponding changes and deformations should all fall within the scope of protection of the claims attached to the present invention.

[0026] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

Claims

1. A VOCs online detection device, characterized in that: include: A detector with a material injection port on the top; A protective component installed at the injection port to protect the syringe, the protective component includes a shell installed on the outside of the injection port and a sliding inner core slidably connected to the inside of the shell, a protective tube for protecting the needle tube of the syringe is provided at the bottom of the sliding inner core, a socket is provided inside the sliding inner core, the syringe is inserted inside the socket, and after the sliding inner core is subjected to force, the protective tube is inserted into the inside of the injection port.

2. The VOCs online detection device according to claim 1, characterized in that: A threaded hole is provided at the bottom of the shell, a screw connection part matching with the threaded hole is provided at the outer wall of the injection port, a limiting flange is provided at the top of the threaded hole, and a first thrust spring is provided between the limiting flange and the sliding inner core.

3. The VOCs online detection device according to claim 1 or 2, characterized in that: The protection component also includes: A middle sliding sleeve detachably and slidably connected to the interior of the housing, wherein the middle sliding sleeve presses down the housing of the syringe after the syringe is inserted; A force-bearing member slidably connected to the interior of the middle sliding sleeve for pressing the pressing rod of the syringe, a second thrust spring is arranged between the force-bearing member and the middle sliding sleeve, and the elastic force of the second thrust spring is greater than the elastic force of the first thrust spring.

4. The VOCs online detection device according to claim 3, characterized in that: The top of the shell of the syringe is provided with a convex edge, the convex edge is arranged between the middle sliding sleeve and the sliding inner core, and a rubber plug is arranged inside the injection port.

5. The VOCs online detection device according to claim 4, characterized in that: A limiting portion is provided at the bottom of the force-bearing member, a limiting plate matched with the limiting portion is provided at the inner side of the top of the middle sliding sleeve, and a pressing portion is provided at the top of the force-bearing member.

6. The VOCs online detection device according to claim 1, 2, 4 or 5, characterized in that: A display panel and operation buttons are arranged on the front side of the detector.

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