Gas chromatograph
By designing a combination of lifting mechanism and universal pulley in the gas chromatograph, the problem of inconvenience in movement and fixing of the gas chromatograph is solved, the equipment is easily moved and fixed, and the flexibility and safety of experimental operations are improved.
Patent Information
- Application Number
- CN202421116377.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-21
- Publication Date
- 2025-03-11
- Estimated Expiration
- 2034-05-21
AI Technical Summary
Existing gas chromatographs are inconvenient to move and fix, especially when the experimental site changes, equipment needs to be frequently transferred, and due to the large weight, it is inconvenient to move and may cause equipment damage.
A gas chromatograph is designed, using a lifting mechanism, including a top plate, a base, driven helical gear and an active helical gear. The screw and the top plate are driven up or down through the rotation of the active helical gear, and the universal pulley is used to achieve movement and fixation.
It realizes convenient movement and fixation of the gas chromatograph, reduces inconvenience and damage risks during equipment transfer, and improves the flexibility and safety of experimental operations.
Smart Images
Figure CN222597291U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of chromatographic analysis instruments, in particular to a gas chromatograph. Background Art
[0002] Gas chromatographs are widely used in fire investigation, petroleum, chemical industry, biochemistry, medicine and health, food industry, environmental protection and other fields. In addition to being used for quantitative and qualitative analysis, it can also determine the physical and chemical constants of the sample on the stationary phase, such as the distribution coefficient, activity coefficient, molecular weight and specific surface area. A gas chromatograph is an instrument for analyzing and detecting the components in a mixed gas. After the analysis sample is vaporized in the injection port, it is brought into the chromatographic column by the carrier gas. Through the chromatographic column with different retention properties for the components in the mixture to be detected, the components are separated and introduced into the detector in sequence to obtain the detection signal of each component. According to the order of introduction into the detector, after comparison, it is possible to distinguish what components they are, and the content of each component can be calculated based on the peak height or peak area.
[0003] At present, most of the chromatographs we commonly use are fixed on the ground. However, in actual use, due to the limitations of measurement conditions, the experimental site may often change during the test. Once the experimental site changes, the relevant experimental equipment needs to be transferred. In the process of transfer, since the gas chromatograph is heavy, it needs to be lifted by multiple people to move it. The transfer is inconvenient and may cause damage to the chromatograph. Generally, a pulley is set at the bottom to move the chromatograph. However, when the chromatograph is in use, the instability of the pulley may cause the chromatograph to move. Utility Model Content
[0004] The utility model aims to provide a gas chromatograph to solve the problem that the existing gas chromatograph is inconvenient to move and fix.
[0005] A gas chromatograph in the present scheme comprises a lifting mechanism and a chromatograph body, the lifting mechanism comprises a top plate and a base, the base is connected to a fixed cylinder, the fixed cylinder is horizontally rotatably connected to a driven bevel gear, a threaded hole is provided in the driven bevel gear, a screw is threadedly connected to the threaded hole, the screw is connected to the top plate, the driven bevel gear is meshed with a driving bevel gear, the driving bevel gear is connected to the fixed cylinder, the top plate is connected with extension rods around, the ends of the extension rods are connected to universal pulleys, and the chromatograph body is detachably connected to the top plate.
[0006] The working principle and beneficial effects of this scheme are as follows: when in use, the active bevel gear is rotated, the active bevel gear rotates, drives the driven bevel gear meshing with it to rotate, the driven bevel gear rotates, drives the screw connected with it to rise, the screw rises and drives the top plate connected with it to rise and fall, when the chromatograph needs to be moved, the top plate is lowered by rotating the active bevel gear, the extension rods connected around the top plate are lowered, the universal pulley contacts the ground, the base is propped up, and the universal pulley can move, when the chromatograph does not need to be moved and the position of the chromatograph needs to be fixed, the top plate is raised by rotating the active bevel gear, the top plate is raised so that the base is supported on the ground, and the universal pulley is lifted up, thereby fixing the chromatograph body. In this way, when it is necessary to move, the universal pulley can be used to move, and when it is necessary to detect, the base is supported to fix the gas chromatograph, which is convenient for detection; in addition, when it is fixed on the ground, if the height of the gas chromatograph body needs to be raised, the active bevel gear can be continued to be rotated to drive the top plate to move up, so that the height of the gas chromatograph can be raised, so as to facilitate the operation of the staff. When in use, the lifting or lowering can be achieved with the help of a hand-assisted device.
[0007] Furthermore, the base includes a fixing frame, in which two fixing rods intersecting each other are arranged, and two ends of the fixing rods are respectively fixedly connected to two diagonally opposite corners in the fixing frame. This arrangement makes the base more stable.
[0008] Furthermore, the active bevel gear is fixedly connected with a handle, and the active bevel gear can be rotated more conveniently through the handle.
[0009] Furthermore, two opposite ends of the base are fixedly connected with fixed cylinders, and the fixed cylinders are horizontally rotatably connected with driven bevel gears, threaded holes are provided in the driven bevel gears, screws are threadedly connected with the driven bevel gears, and the driven bevel gears are meshed with active bevel gears, and the two screws are fixedly connected with the top plate, and a connecting rod is fixedly connected between the two active bevel gears. The connecting rod is driven to rotate by rotating the handle, and finally the two active bevel gears are driven to rotate together, and finally the two screws are lifted or lowered together. BRIEF DESCRIPTION OF THE DRAWINGS
[0010] Figure 1 This is a schematic diagram of the structure of a gas chromatograph of the utility model;
[0011] Figure 2 for Figure 1 A top view of the fixed frame;
[0012] Figure 3 for Figure 1 Left view of the driven bevel gear, driving bevel gear, connecting rod and handle. DETAILED DESCRIPTION
[0013] The following is a further detailed description through specific implementation methods:
[0014] The reference numerals in the drawings of the specification include: gas chromatograph 1, top plate 2, extension rod 3, universal pulley 4, screw 5, driven bevel gear 6, driving bevel gear 7, connecting plate 8, handle 9, fixing frame 10, fixing rod 11, connecting rod 12.
[0015] The embodiment is basically as shown in the attached Figure 1 to Figure 3 As shown: a gas chromatograph, including a lifting mechanism and a chromatograph body, the lifting mechanism includes a top plate 2 and a base, the base includes a fixed frame 10, two mutually intersecting fixed rods 11 are arranged in the fixed frame 10, two ends of the fixed rod 11 are respectively fixedly connected to two diagonally opposite corners in the fixed frame 10, two opposite ends of the base are fixedly connected to fixed cylinders, the fixed cylinders are horizontally rotatably connected to driven bevel gears 6, threaded holes are arranged in the driven bevel gears 6, the driven bevel gears 6 are threadedly connected to screws 5, the driven bevel gears 6 are meshed with active bevel gears 7, the two screws 5 are fixedly connected to the top plate 2, a connecting rod 12 is fixedly connected between the two active bevel gears 7, the fixed cylinder is fixedly connected to a connecting plate 8, the connecting plate 8 is rotatably connected to the active bevel gear 7, the top plate 2 is fixedly connected to an extension rod 3 around the periphery, the end of the extension rod 3 is connected to a universal pulley 4, and the chromatograph body is detachably connected to the top plate 2.
[0016] When in use, the handle 9 is rotated, and the handle 9 drives the active bevel gear 7 connected thereto to rotate, and the two active bevel gears 7 are driven to rotate together through the connecting rod 12. The active bevel gear 7 rotates, driving the driven bevel gear 6 meshing therewith to rotate, and the driven bevel gear 6 rotates, driving the screw 5 threadedly connected thereto to rise, and the rising of the two screws 5 drives the top plate 2 fixedly connected thereto to rise and fall. When the chromatograph needs to be moved, the top plate 2 is lowered by rotating the active bevel gear 7, and the extension rods 3 connected around the top plate 2 are lowered, the universal pulley 4 contacts the ground, the base is propped up, and the universal pulley 4 can move. When the chromatograph does not need to be moved and the position of the chromatograph needs to be fixed, the top plate 2 is raised by rotating the active bevel gear 7. The rising of the top plate 2 supports the base on the ground, and the universal pulley 4 is lifted up, thereby fixing the chromatograph body. In this way, when it is necessary to move, the universal pulley 4 can be used to move, and when it is necessary to test, the base can be supported to fix the gas chromatograph 1 for easy testing; in addition, when it is fixed on the ground, if the height of the gas chromatograph 1 body needs to be raised, the active bevel gear 7 can be further rotated to drive the top plate 2 to move up, so that the height of the gas chromatograph 1 can be raised, thereby facilitating the operation of the staff. When in use, the hand-assisted device can be used to achieve the rise or fall.
[0017] The above is only an embodiment of the utility model, and the common knowledge such as the known specific structure and characteristics in the scheme is not described in detail here. It should be pointed out that for those skilled in the art, several deformations and improvements can be made without departing from the structure of the utility model, which should also be regarded as the protection scope of the utility model, and these will not affect the effect of the implementation of the utility model and the practicality of the patent. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.
Claims
1. A gas chromatograph, characterized in that: It includes a lifting mechanism and a chromatograph body. The lifting mechanism includes a top plate and a base. The base is connected to a fixed cylinder. The fixed cylinder is horizontally rotatably connected to a driven bevel gear. A threaded hole is provided in the driven bevel gear. The threaded hole is threadedly connected to a screw rod. The screw rod is connected to the top plate. The driven bevel gear is meshed with a driving bevel gear. The driving bevel gear is connected to the fixed cylinder. Extension rods are connected around the top plate. The ends of the extension rods are connected to universal pulleys. The chromatograph body is detachably connected to the top plate.
2. A gas chromatograph according to claim 1, characterized in that: The base comprises a fixing frame, in which two fixing rods intersecting each other are arranged, and two ends of the fixing rods are respectively fixedly connected with two diagonally opposite corners in the fixing frame.
3. A gas chromatograph according to claim 2, characterized in that: The active bevel gear is fixedly connected with a handle.
4. A gas chromatograph according to claim 3, characterized in that: The two opposite ends of the base are fixedly connected with fixed cylinders, and the fixed cylinders are horizontally rotatably connected with driven bevel gears. The driven bevel gears are provided with threaded holes, and the driven bevel gears are threadedly connected with screws. The driven bevel gears are meshed with active bevel gears, and the two screws are fixedly connected to the top plate. A connecting rod is fixedly connected between the two active bevel gears.