Gas chromatography-mass spectrometry combined detector

Abstract

The utility model belongs to the technical field of gas chromatographs, and particularly relates to a gas chromatography-mass spectrometry combined detector which comprises a machine body, a handle is hinged to the outer side of the machine body through a damping shaft, a square plate is connected into the machine body in a sliding mode, and a threaded rod is fixedly connected to the lower end of the square plate. The lower end of the threaded rod is fixedly connected with a base plate, the interior of the machine body is rotationally connected with a limiting block, and the lower end of the limiting block is fixedly connected with a limiting sleeve. Through the arrangement of the threaded rod, the limiting sleeve and other components, the limiting sleeve can be rotated to make threaded movement with the threaded rod, so that the position of the base plate is adjusted, the base plate is matched with the lifting handle to keep the equipment stable, and secondary adjustment is not needed when the equipment is moved on the same plane; the problems that a bottom support of a gas chromatography-mass spectrometry combined detector cannot be adjusted when the gas chromatography-mass spectrometry combined detector is used, and the gas chromatography-mass spectrometry combined detector is not stable when placed are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of gas chromatographs, in particular to a gas chromatography-mass spectrometry detector. Background Art

[0002] Gas chromatography-mass spectrometry (GC-MS) is a commonly used analytical instrument that combines gas chromatography (GC) and mass spectrometry (MS) technology to analyze and identify the composition and structure of chemical substances. According to the invention disclosed in the patent authorization announcement number CN113325123B, the gas chromatograph comprises: a sample gas generating unit for generating sample gas from an injected sample; a separation column for separating components in the sample gas; a detector for detecting the components separated in the separation column; a plurality of gas supply sources for supplying gas that becomes a carrier gas; a switching unit configured to connect one of the plurality of gas supply sources to the sample gas generating unit fluid by switching; a gas type setting unit configured to set the type of gas supplied from each of the plurality of gas supply sources connected to the switching unit based on information input by a user; a gas type storage unit that stores the type of gas set by the gas type setting unit; and a gas type determination unit configured to identify the state of the switching unit and determine the gas type of the carrier gas based on the state of the switching unit and the information stored in the gas type storage unit. However, the bottom bracket of the gas chromatography-mass spectrometry detector is not adjustable when in use, so it is not stable when placed, and it is not convenient to remove the cover during maintenance. Utility Model Content

[0003] The utility model aims to provide a gas chromatography-mass spectrometry detector, which solves the problems that the bottom bracket of the gas chromatography-mass spectrometry detector is not adjustable when in use, is not stable when placed, and is inconvenient to disassemble the cover plate during maintenance.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a gas chromatography-mass spectrometry detector, comprising a body, a handle hinged on the outside of the body through a damping shaft, a square plate slidably connected to the inside of the body, a threaded rod fixedly connected to the lower end of the square plate, a pad fixedly connected to the lower end of the threaded rod, a limiting block rotatably connected to the inside of the body, a limiting sleeve fixedly connected to the lower end of the limit block, a cover plate slidably connected to the inside of the body, and a disassembly mechanism is provided on the cover plate.

[0005] Preferably, a protrusion is fixedly connected to the outer side of the limit block, and a protrusion is rotatably connected to the inside of the body. The design of the protrusion can play a limiting role on the limit block.

[0006] Preferably, the limiting sleeve is in contact with the machine body, the limiting sleeve is connected to the threaded rod through threads, and the limiting sleeve is in contact with the pad. The position of the threaded rod can be adjusted through the design of the limiting sleeve.

[0007] Preferably, the disassembly mechanism includes a push plate, the cover plate is slidably connected to the push plate inside, the push plate is fixedly connected to a block on the side of the push plate close to the machine body, and the push plate is fixedly connected to a sliding rod on the side of the push plate away from the blocking block, the sliding rod is slidably connected to the cover plate, and the cover plate is fixedly connected to a limiting ring inside, the limiting ring is slidably connected to the sliding rod, and a spring is arranged inside the push plate. By moving the two push plates in a direction approaching each other, the push plate drives the sliding rod to slide in the limiting ring, the sliding rod squeezes the spring, and the push plate drives the blocking block to move, so that the blocking block slides out of the machine body, thereby releasing the limit on the cover plate and allowing the cover plate to be disassembled.

[0008] Preferably, the clamping block is slidably connected to the cover plate, and the clamping block is slidably connected to the body. The design of the clamping block can limit the cover plate.

[0009] Preferably, one end of the spring contacts the slide bar, and the other end of the spring contacts the cover plate. The design of the spring can drive the clamping block to limit the cover plate.

[0010] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0011] 1. The utility model is provided with components such as a threaded rod and a limit sleeve. The limit sleeve can be rotated to cause a threaded movement with the threaded rod, thereby adjusting the position of the pad, so that the device can be kept stable in cooperation with the handle, and no secondary adjustment is required when the device is moved on the same plane, thereby solving the problem that the bottom bracket of the gas chromatography-mass spectrometry detector cannot be adjusted when in use and is not stable when placed.

[0012] 2. The utility model is provided with components such as a push plate, a clamping block, and a spring. By moving the push plate, the clamping block is driven by the push plate to slide out of the machine body, so that the limit on the cover plate can be released and the cover plate can be disassembled, thereby facilitating the maintenance of the machine body and solving the problem of inconvenience in disassembling the cover plate during maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0014] Figure 2 For the utility model Figure 1 A three-dimensional diagram of the local structure;

[0015] Figure 3 For the utility model Figure 2 A front cross-sectional view of

[0016] Figure 4 For the utility model Figure 1 A side cross-sectional view of

[0017] Figure 5 For the utility model Figure 4 A magnified view of the structure of part A;

[0018] Figure 6 For the utility model Figure 3 Enlarged view of the structure of part B.

[0019] In the figure: 1. body; 2. handle; 3. square plate; 31. threaded rod; 32. pad; 33. limit block; 34. protrusion; 35. limit sleeve; 4. cover plate; 5. disassembly mechanism; 51. push plate; 52. block; 53. slide rod; 54. limit ring; 55. spring. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figure 1-6 A gas chromatography-mass spectrometry detector comprises a body 1, the outer side of the body 1 is hinged with a handle 2 through a damping shaft, a square plate 3 is slidably connected inside the body 1, a threaded rod 31 is fixedly connected to the lower end of the square plate 3, a pad 32 is fixedly connected to the lower end of the threaded rod 31, a limit block 33 is rotatably connected inside the body 1, a protrusion 34 is fixedly connected to the outer side of the limit block 33, and the inner side of the body 1 is rotatably connected with the protrusion 34. The limit block 33 can be limited by the design of the protrusion 34, and the lower end of the limit block 33 is fixedly connected with a limit sleeve 35, the limit sleeve 35 is in contact with the body 1, the limit sleeve 35 is threadedly connected to the threaded rod 31, the limit sleeve 35 is in contact with the pad 32, and the position of the threaded rod 31 can be adjusted by the design of the limit sleeve 35, and a cover plate 4 is slidably connected inside the body 1, and a disassembly mechanism 5 is provided on the cover plate 4.

[0022] See also Figure 2-6The disassembly mechanism 5 includes a push plate 51, which is slidably connected to the inside of the cover plate 4, and a clamping block 52 is fixedly connected to the side of the push plate 51 close to the body 1. The clamping block 52 is slidably connected to the cover plate 4, and the clamping block 52 is slidably connected to the body 1. Through the design of the clamping block 52, the cover plate 4 can be limited. A sliding rod 53 is fixedly connected to the side of the push plate 51 away from the clamping block 52, and the sliding rod 53 is slidably connected to the cover plate 4. A limiting ring 54 is fixedly connected to the inside of the cover plate 4.

[0023] See also Figure 2-6 The limit ring 54 is slidably connected with the slide rod 53, and a spring 55 is arranged inside the push plate 51. One end of the spring 55 contacts the slide rod 53, and the other end of the spring 55 contacts the cover plate 4. Through the design of the spring 55, the block 52 can be driven to limit the cover plate 4. By moving the two push plates 51 in a direction approaching each other, the push plate 51 drives the slide rod 53 to slide in the limit ring 54, and the slide rod 53 squeezes the spring 55, and the push plate 51 drives the block 52 to move, so that the block 52 slides out of the body 1, so that the limit on the cover plate 4 can be released, and the cover plate 4 can be disassembled.

[0024] The specific implementation process of the utility model is as follows: when in use, by rotating the limiting sleeve 35, the limiting sleeve 35 and the threaded rod 31 are threadedly moved, so that the threaded rod 31 moves in the limiting sleeve 35, and the threaded rod 31 drives the pad 32 to move, so that the support point of the body 1 can be adjusted, and then the handle 2 can be used to keep the body 1 stable when placed;

[0025] By moving the two push plates 51 toward each other, the push plates 51 drive the slide bar 53 to slide in the limit ring 54, the slide bar 53 squeezes the spring 55, and the push plates 51 drive the block 52 to move, so that the block 52 slides out of the body 1, the limit on the cover plate 4 can be released and the cover plate 4 can be disassembled.

[0026] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A gas chromatography-mass spectrometry detector, comprising a body (1), characterized in that: The outer side of the machine body (1) is hinged with a handle (2) via a damping shaft, the interior of the machine body (1) is slidably connected to a square plate (3), the lower end of the square plate (3) is fixedly connected to a threaded rod (31), the lower end of the threaded rod (31) is fixedly connected to a pad (32), the interior of the machine body (1) is rotatably connected to a limit block (33), the lower end of the limit block (33) is fixedly connected to a limit sleeve (35), the interior of the machine body (1) is slidably connected to a cover plate (4), and a disassembly mechanism (5) is provided on the cover plate (4).

2. A gas chromatography-mass spectrometry detector according to claim 1, characterized in that: The outer side of the limit block (33) is fixedly connected with a protrusion (34), and the interior of the machine body (1) is rotatably connected with the protrusion (34).

3. The gas chromatography-mass spectrometry detector according to claim 1, characterized in that: The limiting sleeve (35) is in contact with the machine body (1), the limiting sleeve (35) is connected to the threaded rod (31) via threads, and the limiting sleeve (35) is in contact with the pad (32).

4. The gas chromatography-mass spectrometry detector according to claim 1, characterized in that: The disassembly mechanism (5) comprises a push plate (51), the push plate (51) is slidably connected inside the cover plate (4), a clamping block (52) is fixedly connected to the side of the push plate (51) close to the machine body (1), a sliding rod (53) is fixedly connected to the side of the push plate (51) away from the clamping block (52), the sliding rod (53) is slidably connected to the cover plate (4), a limiting ring (54) is fixedly connected inside the cover plate (4), the limiting ring (54) is slidably connected to the sliding rod (53), and a spring (55) is arranged inside the push plate (51).

5. A gas chromatography-mass spectrometry detector according to claim 4, characterized in that: The clamping block (52) is slidably connected to the cover plate (4), and the clamping block (52) is slidably connected to the machine body (1).

6. A gas chromatography-mass spectrometry detector according to claim 4, characterized in that: One end of the spring (55) contacts the slide bar (53), and the other end of the spring (55) contacts the cover plate (4).

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