Headspace gas chromatograph

Abstract

The utility model discloses a headspace gas chromatograph, which relates to the technical field of medicine detection and comprises a chromatograph main body and an adjusting component, a base is arranged at the bottom of the chromatograph main body, and the adjusting component is arranged in the base. The adjusting assembly comprises a handle, a worm, a worm gear, a positive and negative tooth screw rod, a sliding base, a connecting rod, a supporting column, an anti-skid pad and a limiting rod. According to the headspace gas chromatograph, through the arrangement of the adjusting assembly, when the headspace gas chromatograph needs to be moved, the worm gear can drive the positive and negative tooth screw rod to rotate only by rotating the worm through the handle, and the sliding seat is prevented from rotating by utilizing the connecting rod, the supporting column and the limiting rod, so that when the positive and negative tooth screw rod rotates, thread lines outside the two ends of the positive and negative tooth screw rod are opposite; when the equipment is moved, the sliding seats at the two ends can move towards the center at the same time, the supporting columns are pulled through the connecting rods to move upwards along the limiting rods, the universal wheels can make contact with the ground, and therefore the equipment can be moved conveniently.

Description

Technical Field

[0001] The utility model relates to the technical field of medical detection, in particular to a headspace gas chromatograph. Background Art

[0002] Headspace gas chromatography is an analytical technique that combines headspace technology and gas chromatography. This technique is mainly used to analyze the content of volatile or semi-volatile compounds in samples. Headspace gas chromatography is widely used in the pharmaceutical industry, forensic chemistry and other fields to detect and quantify volatile organic compounds, residual solvents, fragrances, additives, etc. in samples.

[0003] For example, the utility model with application number CN202122331651.7 discloses a headspace gas chromatograph. The utility model can realize effective support of the chromatograph body through the cooperation between the placement slot, the moving component, the limit component and the support component, and will not easily deviate, and can also realize the rapid movement of the chromatograph body; during use, the moving component, the limit component and the support component are all located inside the placement slot, which will not affect the normal use of the chromatograph body, and the overall practicality is higher, but in the actual use of this type of equipment, it is necessary to tilt the chromatograph body by the handle and then adjust the position of the two rectangular blocks, but because the rectangular block is located at the bottom of the device and the handle is located at the upper end of the device, it is inconvenient for a single person to operate during adjustment, and when the device is tilted, the stability of the device will be reduced, which is easy to cause the problem of dumping accidents.

[0004] Therefore, in view of this, the existing structure and defects are studied and improved, and a headspace gas chromatograph is provided. Utility Model Content

[0005] The utility model aims to provide a headspace gas chromatograph to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a headspace gas chromatograph, comprising a chromatograph body and an adjustment component, a base is arranged at the bottom of the chromatograph body, and the adjustment component is arranged inside the base, the adjustment component comprises a handle, a worm, a worm wheel, a forward and reverse threaded screw, a sliding seat, a connecting rod, a pillar, an anti-skid pad and a limit rod, one end of the handle is connected to the worm, and the front and rear ends of the worm are meshed with the worm wheel, the inside of the worm wheel is arranged with a forward and reverse threaded screw, and the outer sides of the two ends of the forward and reverse threaded screw are threadedly connected to the sliding seat, a connecting rod is arranged on one side of the sliding seat, and one end of the connecting rod is rotatably connected to the pillar, the bottom of the pillar is provided with an anti-skid pad, and the interior of the pillar is slidably connected to the limit rod.

[0007] Furthermore, the base is rotationally connected to the worm, and the base is slidingly connected to the support.

[0008] Furthermore, the limit rod is fixedly connected to the base, and the base is rotatably connected to the forward and reverse threaded screw.

[0009] Furthermore, movable components are provided at the four ends of the base, and the movable components include a baffle, a mounting seat and a universal wheel. The mounting seat is fixed to the lower end of one side of the baffle, and the bottom of the mounting seat is connected to the universal wheel.

[0010] Furthermore, the moving assembly also includes a buffer spring, a damper and a guide block. The top of the mounting seat is connected to a buffer spring, and a damper is arranged inside the buffer spring. Guide blocks are arranged on both sides of the mounting seat.

[0011] Furthermore, the width of the baffle is greater than the width of the side groove of the base, and the base fits tightly with the buffer spring.

[0012] Furthermore, the height of the baffle is greater than the height of the damper, and the baffle is slidably connected to the base.

[0013] Furthermore, the guide block is slidably connected to the base, and the base is fixedly connected to the damper.

[0014] The utility model provides a headspace gas chromatograph, which has the following beneficial effects:

[0015] 1. The utility model provides an adjustment component. When the headspace gas chromatograph needs to be moved, the worm gear can be driven to rotate the positive and negative threaded screws by rotating the worm gear by the handle. At this time, the connecting rod, the pillar and the limit rod are used to prevent the slide from rotating. Therefore, when the positive and negative threaded screws rotate, the slides at both ends can move toward the center at the same time because the thread patterns on the outside of the two ends are opposite. The pillar is pulled by the connecting rod to move up along the limit rod, so that the universal wheel can contact the ground, thereby facilitating the movement of the equipment. When using the equipment, the worm gear can be rotated in the opposite direction to move all the pillars down at the same time to prop up the equipment. The friction force is increased by the anti-skid pad to enhance the stability of the equipment when it is used. At the same time, the stability of the chromatograph body will not be affected during adjustment, which is safer.

[0016] 2. The utility model, through the setting of the mobile component, can use the buffer spring to buffer the space between the mounting seat and the base during the movement, and use the damper to convert the mechanical energy stored in the buffer spring into heat energy consumption, thereby suppressing the vibration of the buffer spring, which is beneficial to improving the stability of the chromatograph body during the movement. At the same time, a baffle is used to shield and protect the outer side of the damper and the buffer spring to reduce the entry of impurities, thereby increasing the service life of the component. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1This is a schematic diagram of the overall three-dimensional structure of a headspace gas chromatograph of the utility model;

[0018] Figure 2 This is a schematic diagram of the three-dimensional structure of an adjustment component of a headspace gas chromatograph of the utility model;

[0019] Figure 3 The utility model is a schematic diagram of the three-dimensional structure of a mobile component of a headspace gas chromatograph.

[0020] In the figure: 1. chromatograph body; 2. base; 3. adjustment assembly; 301. handle; 302. worm; 303. worm wheel; 304. forward and reverse thread screw; 305. slide seat; 306. connecting rod; 307. support; 308. anti-skid pad; 309. limit rod; 4. moving assembly; 401. baffle; 402. mounting seat; 403. universal wheel; 404. buffer spring; 405. damper; 406. guide block. DETAILED DESCRIPTION

[0021] The following is a further detailed description of the implementation of the present utility model in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present utility model, but cannot be used to limit the scope of the present utility model.

[0022] like Figure 1 and Figure 2As shown, a headspace gas chromatograph comprises a chromatograph body 1 and an adjustment component 3. A base 2 is arranged at the bottom of the chromatograph body 1, and the adjustment component 3 is arranged inside the base 2. The adjustment component 3 comprises a handle 301, a worm 302, a worm wheel 303, a positive and negative threaded screw 304, a slide seat 305, a connecting rod 306, a pillar 307, an anti-skid pad 308 and a limit rod 309. One end of the handle 301 is connected to the worm 302, and the front and rear ends of the worm 302 are meshed with the worm wheel 303. The positive and negative threaded screw 304 is arranged inside the worm wheel 303, and the outer sides of the two ends of the positive and negative threaded screw 304 are threadedly connected with the slide seat 305. By rotating the worm 302 through the handle 301, the worm wheel 303 can drive the positive and negative threaded screw 304 to rotate. At the same time, because the outer thread patterns of the two ends of the positive and negative threaded screw 304 are opposite, the positive and negative threaded screw 304 can be rotated. The slides 305 at both ends move in opposite directions at the same time, a connecting rod 306 is arranged on one side of the slide 305, and one end of the connecting rod 306 is rotatably connected to a pillar 307, the base 2 is rotatably connected to the worm 302, and the base 2 is slidably connected to the pillar 307, the base 2 will limit and guide the pillar 307, an anti-skid pad 308 is provided at the bottom of the pillar 307, and the internal sliding connection of the pillar 307 is connected to a limiting rod 309, the connecting rod 306, the pillar 307 and the limiting rod 309 are used to prevent the slide 305 from rotating, the limiting rod 309 is fixedly connected to the base 2, and the base 2 is rotatably connected to the forward and reverse threaded screw 304, the slide 305 will push the pillar 307 through the connecting rod 306, so that it moves down along the limiting rod 309, so that the pillar 307 can contact with the ground, and the friction force is increased by the anti-skid pad 308 to enhance the stability during use.

[0023] like Figure 1 and Figure 3As shown, the four ends of the base 2 are provided with a moving component 4, and the moving component 4 includes a baffle 401, a mounting seat 402 and a universal wheel 403. The mounting seat 402 is fixed to the lower end of one side of the baffle 401, and the bottom of the mounting seat 402 is connected to the universal wheel 403. The baffle 401 is used to reduce the entry of impurities, thereby improving the service life of the component. The moving component 4 also includes a buffer spring 404, a damper 405 and a guide block 406. The top of the mounting seat 402 is connected to the buffer spring 404, and the inside of the buffer spring 404 is provided with a damper 405. The width of the baffle 401 is greater than the width of the side groove of the base 2, and the base 2 and the buffer spring 406 are connected. The impact spring 404 fits tightly, and the buffer spring 404 is used to buffer the mounting seat 402 and the base 2. The height of the baffle 401 is greater than the height of the damper 405, and the baffle 401 is slidably connected to the base 2. The damper 405 can convert the mechanical energy stored in the buffer spring 404 into heat energy consumption, thereby suppressing the vibration of the buffer spring 404, which is beneficial to improving the stability of the chromatograph body 1 during movement. Guide blocks 406 are arranged on both sides of the mounting seat 402, and the guide blocks 406 are slidably connected to the base 2, and the base 2 is fixedly connected to the damper 405, and the guide blocks 406 will limit and guide the mounting seat 402.

[0024] In summary, when using the headspace gas chromatograph, first Figure 1 , Figure 2 and Figure 3 In the structure shown in the figure, by rotating the worm 302 through the handle 301, the worm wheel 303 can drive the forward and reverse threaded screws 304 to rotate, so that the slide seats 305 at both ends move toward the center at the same time, and the support 307 is pulled by the connecting rod 306 to move up along the limit rod 309, so that the universal wheel 403 can contact the ground, thereby facilitating the movement of the device. Then, in the process of moving the chromatograph body 1 through the universal wheel 403, the buffer spring 404 will buffer the space between the mounting seat 402 and the base 2, and the damper 404 can be used to prevent the mounting seat 402 from moving. 05 suppresses the vibration of the buffer spring 404, which is beneficial to improving the stability of the chromatograph body 1 during movement. At the same time, the baffle 401 is used to shield and protect the outer side of the damper 405 and the buffer spring 404, and the guide block 406 can also limit and guide the mounting seat 402. Finally, after the chromatograph body 1 is moved to the specified position, it is only necessary to rotate the worm 302 in the opposite direction to move all the pillars 307 downward at the same time to prop up the equipment, and increase the friction through the anti-slip pad 308 to enhance the stability of the equipment during use.

[0025] The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

Claims

1. A headspace gas chromatograph, comprising a chromatograph body (1) and a regulating component (3), characterized in that: A base (2) is arranged at the bottom of the chromatograph body (1), and the adjustment assembly (3) is arranged inside the base (2). The adjustment assembly (3) comprises a handle (301), a worm (302), a worm wheel (303), a forward and reverse threaded screw (304), a sliding seat (305), a connecting rod (306), a support (307), an anti-slip pad (308) and a limit rod (309). One end of the handle (301) is connected to the worm (302), and the front and rear ends of the worm (302) are Both ends are meshed with worm gears (303), a positive and negative threaded screw (304) is arranged inside the worm gear (303), and both ends of the positive and negative threaded screw (304) are threadedly connected to a slide seat (305), a connecting rod (306) is arranged on one side of the slide seat (305), and one end of the connecting rod (306) is rotatably connected to a support (307), an anti-skid pad (308) is arranged at the bottom of the support (307), and a limit rod (309) is slidably connected inside the support (307).

2. A headspace gas chromatograph according to claim 1, characterized in that: The base (2) is rotationally connected to the worm (302), and the base (2) is slidingly connected to the support (307).

3. A headspace gas chromatograph according to claim 1, characterized in that: The limiting rod (309) is fixedly connected to the base (2), and the base (2) is rotationally connected to the forward and reverse threaded screw (304).

4. A headspace gas chromatograph according to claim 1, characterized in that: The four ends of the base (2) are provided with moving components (4), and the moving components (4) include a baffle (401), a mounting seat (402) and a universal wheel (403). The mounting seat (402) is fixed to the lower end of one side of the baffle (401), and the bottom of the mounting seat (402) is connected to the universal wheel (403).

5. A headspace gas chromatograph according to claim 4, characterized in that: The moving assembly (4) further comprises a buffer spring (404), a damper (405) and a guide block (406); the top of the mounting seat (402) is connected to the buffer spring (404), and the damper (405) is arranged inside the buffer spring (404); and the guide blocks (406) are arranged on both sides of the mounting seat (402).

6. A headspace gas chromatograph according to claim 5, characterized in that: The width of the baffle (401) is greater than the width of the side groove of the base (2), and the base (2) and the buffer spring (404) are tightly fitted.

7. A headspace gas chromatograph according to claim 5, characterized in that: The height of the baffle (401) is greater than the height of the damper (405), and the baffle (401) is slidably connected to the base (2).

8. A headspace gas chromatograph according to claim 5, characterized in that: The guide block (406) is slidably connected to the base (2), and the base (2) is fixedly connected to the damper (405).

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