Gas chromatograph for food detection

Abstract

The utility model discloses a gas chromatograph for food detection, which relates to the technical field of food detection equipment, and comprises a gas chromatograph main body, a control panel, a control button, an anti-touch mechanism for protecting the control panel and the control button, and a wiping mechanism for ensuring the surface cleanliness of the control panel, according to the utility model, through the arrangement of the anti-collision mechanism, when a control button or a control panel needs to be operated and controlled, the locking part is utilized in advance to contact and fix the protective cover, so that the protective cover can be quickly overturned upwards under the elastic overturning part, the control panel and the control button are exposed outwards, the manual operation is convenient, and the working efficiency is improved. And after the operation of the control button or the control panel is completed, the control panel or the control button can be shielded and protected by simply turning the protective cover downwards in the same way, so that the control panel or the control button is effectively prevented from being damaged due to the fact that the control panel or the control button is touched by an external object, and the normal use of the gas chromatograph main body is influenced.

Description

Technical Field

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

[0002] Gas chromatography is a commonly used equipment in food testing. The main samples analyzed are often multi-component mixtures in complex matrices. For samples containing unknown components, they must first be separated before further analysis of the relevant components can be carried out. The separation of the mixture is based on the differences in the physical and chemical properties of the components. Gas chromatography mainly uses the differences in the boiling point, polarity and adsorption properties of substances to achieve the separation of the mixture.

[0003] However, in practice, the gas chromatographs in the prior art generally install the control panel and control switches directly on the instrument surface. Therefore, when the gas chromatograph is moved or the staff walks around the gas chromatograph, it is very easy to touch the control panel and control buttons, resulting in direct damage to the machine or causing the machine to operate incorrectly. Utility Model Content

[0004] In order to solve the above technical problems, a gas chromatograph for food testing is provided, which solves the problem that in the prior art, the control panel and control switches of the gas chromatograph are generally directly installed on the surface of the instrument, and then when the gas chromatograph is moved or the staff walks around the gas chromatograph, it is very easy to touch the control panel and control buttons.

[0005] To achieve the above purpose, the technical solution adopted by the utility model is: a gas chromatograph for food testing, comprising a gas chromatograph body, a control panel arranged above the side wall of the gas chromatograph body, and control buttons arranged below the side wall of the gas chromatograph body, and also comprising an anti-touch mechanism for protecting the control panel and the control buttons and a wiping mechanism for ensuring the cleanliness of the surface of the control panel;

[0006] The anti-collision mechanism comprises a protective cover attached to the side wall of the gas chromatograph body, the control panel and the control button are both located inside the protective cover, a notch is provided at the top of the protective cover, an elastic flip component is provided in the notch, and a locking component is provided at the bottom of the protective cover;

[0007] The wiping mechanism comprises a cleaning plate slidably arranged on the surface of the control panel, a fixing plate detachably arranged on the top of the cleaning plate, and a power component arranged in the notch for lifting the cleaning plate.

[0008] Preferably, the elastic flip component includes two fixing plates symmetrically fixed on the side walls of the gas chromatograph body, and a flip rod laterally rotatably arranged between the two fixing plates. The rod body of the flip rod is symmetrically fixed with two rotating sleeves, and the rotating sleeve is fixedly connected to the inner wall of the notch.

[0009] Preferably, the elastic flip component also includes a fixing sleeve which is sleeved on the end of the flip rod body and fixedly connected to the fixing plate vertically. The flip rod is also sleeved with a torsion spring on the body of the flip rod located inside the fixing sleeve. One end of the torsion spring is fixedly connected to the inner wall of the fixing sleeve, and the other end of the fixing sleeve is fixedly connected to the flip rod body.

[0010] Preferably, the locking component includes a locking plate vertically fixed to the bottom surface of the protective cover and a locking screw threadedly passing through the locking plate, and a fixing hole matched with the locking screw is opened on the side wall of the gas chromatograph body.

[0011] Preferably, the power component includes a transmission tooth plate vertically fixed on the top surface of the fixed plate and a driving gear tightly sleeved on the middle part of the flip rod body, a transmission rod is horizontally arranged on the inner side of the protective cover, a transmission gear is tightly sleeved on the rod body of the transmission rod, the transmission gear is respectively meshed with the driving gear and the transmission tooth plate, both ends of the transmission rod are rotatably connected with a bearing plate, and the bearing plate is vertically fixed to the side wall of the gas chromatograph body.

[0012] Preferably, guide rods vertically fixed to the top surface of the fixed plate are vertically arranged on both sides of the transmission tooth plate, and guide sleeves vertically fixed to the side walls of the gas chromatograph body are slidably sleeved on the rod body of the guide rods.

[0013] Preferably, two positioning screws vertically fixed to the cleaning plate are symmetrically passed through the top surface of the fixing plate, and the shafts of the positioning screws are threadedly connected with positioning nuts that abut against the top surface of the fixing plate.

[0014] Compared with the prior art, the advantages of the utility model are:

[0015] (1) By setting up the anti-collision mechanism, when it is necessary to operate the control button or control panel, the protective cover can be quickly flipped upward under the elastic flip component by utilizing the fixing effect of the locking component on the protective cover in advance, thereby exposing the control panel and the control button to the outside, which is convenient for manual operation. After the operation of the control button or control panel is completed, the protective cover can be simply flipped downward in the same way to shield and protect the control panel or control button, thereby effectively preventing the control panel or control button from being damaged by foreign objects and affecting the normal use of the gas chromatograph body.

[0016] (2) Through the setting of the wiping mechanism, when the protective cover is flipped over to protect or open the control panel and control buttons, the cleaning plate in the wiping mechanism can synchronously slide on the surface of the control panel under the power component to wipe the surface of the control panel, clean the dust and impurities on the control panel, and ensure the clarity of the control panel when manually observing the control panel. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 It is a schematic diagram of the local structure of the utility model;

[0019] Figure 3 For this utility model Figure 2 Schematic diagram of the structure at A in the middle;

[0020] Figure 4 For this utility model Figure 2 Schematic diagram of the structure at B in the middle;

[0021] Figure 5 This is a schematic diagram of the connection structure between the cleaning plate and the fixing plate of the utility model;

[0022] Figure 6 This is a schematic diagram of the structure of the fixing plate, protective cover and fixing sleeve of the utility model;

[0023] Figure 7 It is a schematic diagram of the structure of the bearing plate, transmission rod and transmission gear of the utility model.

[0024] The numbers in the figure are:

[0025] 1. Gas chromatograph body; 2. Control panel; 3. Control button; 4. Protective cover; 5. Flip rod; 6. Fixed plate; 7. Rotating sleeve; 8. Fixed sleeve; 9. Torsion spring; 10. Locking plate; 11. Locking screw; 12. Cleaning plate; 13. Fixed plate; 14. Transmission gear plate; 15. Transmission rod; 16. Transmission gear; 17. Loading plate; 18. Driving gear; 19. Positioning screw; 20. Positioning nut; 21. Guide rod; 22. Guide sleeve. DETAILED DESCRIPTION

[0026] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are only examples, and those skilled in the art may think of other obvious variations.

[0027] Reference Figure 1-7 As shown, a gas chromatograph for food testing comprises a gas chromatograph body 1, a control panel 2 arranged above the side wall of the gas chromatograph body 1, and a control button 3 arranged below the side wall of the gas chromatograph body 1;

[0028] Through the setting of the control panel 2 and the control button 3, the gas chromatograph body 1 can be started to move by pressing the control button 3 during use to detect food samples. During the detection process, the control panel 2 can present the experimental data of the detection process to the outside for personnel to observe and grasp.

[0029] However, in practice, the control panel 2 and the control buttons 3 are generally directly mounted on the surface of the gas chromatograph body 1. When the gas chromatograph body 1 is moved or the staff walks around the gas chromatograph body 1, it is very easy to touch the control panel 2 and the control buttons 3, resulting in direct damage to the gas chromatograph body 1 or causing the gas chromatograph body 1 to operate incorrectly.

[0030] For this purpose, refer to Figure 1-4 As shown, it is worth noting that it also includes an anti-touch mechanism for protecting the control panel 2 and the control button 3;

[0031] The anti-touch mechanism includes a protective cover 4 attached to the side wall of the gas chromatograph body 1, the control panel 2 and the control button 3 are both located inside the protective cover 4, a notch is provided at the top of the protective cover 4, an elastic flip component is provided in the notch, and a locking component is provided at the bottom of the protective cover 4;

[0032] By setting the anti-collision mechanism, when it is necessary to operate the control button 3 or the control panel 2, the locking component can be used in advance to fix the protective cover 4, and the protective cover 4 can be quickly flipped upward under the elastic flip component to expose the control panel 2 and the control button 3 to the outside, which is convenient for manual operation. After the operation of the control button 3 or the control panel 2 is completed, the protective cover 4 can be simply flipped downward to shield and protect the control panel 2 or the control button 3, thereby effectively preventing the control panel 2 or the control button 3 from being damaged by foreign objects and affecting the normal use of the gas chromatograph body 1.

[0033] Further, refer to Figure 3 and Figure 6 As shown, it is worth noting that the elastic flip component includes two fixing plates 6 symmetrically fixed on the side wall of the gas chromatograph body 1, and a flip rod 5 that is laterally rotatably arranged between the two fixing plates 6. The rod body of the flip rod 5 is symmetrically fixedly sleeved with two rotating sleeves 7, and the rotating sleeve 7 is fixedly connected to the inner side wall of the notch;

[0034] The elastic flip component also includes a fixing sleeve 8 which is sleeved on the end of the flip rod 5 and fixedly connected to the fixing plate 6 vertically. A torsion spring 9 is sleeved on the body of the flip rod 5 located inside the fixing sleeve 8. One end of the torsion spring 9 is fixedly connected to the inner wall of the fixing sleeve 8, and the other end of the fixing sleeve 8 is fixedly connected to the body of the flip rod 5.

[0035] The locking component includes a locking piece 10 vertically fixed to the bottom surface of the protective cover 4 and a locking screw 11 threadedly penetrating the locking piece 10, and a fixing hole adapted to the locking screw 11 is opened on the side wall of the gas chromatograph body 1;

[0036] The protective cover 4 is flipped down, and the flip rod 5 can be rotated synchronously under the action of the rotating sleeve 7, and the flip rod 5 is deformed by twisting the torsion spring 9 in the fixed sleeve 8. When the protective cover 4 is rotated to be in contact with the surface of the gas chromatograph body 1, the protective cover 4 can shield and protect the control panel 2 and the control button 3. Then, the knob locking screw 11 is turned, and the locking screw 11 can be screwed into the fixing hole under the threaded structure to lock the protective cover 4, thereby offsetting the rotation force of the torsion spring 9 on the flip rod 5, the rotating sleeve 7 and the protective cover 4 as a whole, thereby improving the stability of the protective cover 4;

[0037] On the contrary, the locking screw 11 is locked by turning the knob in the reverse direction, so that the locking screw 11 is withdrawn from the fixing hole under the threaded structure, thereby releasing the fixing effect on the protective cover 4. The flip rod 5 can then reverse the protective cover 4 by the rotating sleeve 7 under the restoring force of the torsion spring 9, quickly exposing the control panel 2 and the control button 3 to the outside, thereby facilitating manual operation.

[0038] In addition, refer to Figure 2 , Figure 3 , Figure 5 as well as Figure 7 As shown, it is worth noting that it also includes a wiping mechanism for ensuring the cleanliness of the surface of the control panel 2;

[0039] The wiping mechanism includes a cleaning plate 12 slidably disposed on the surface of the control panel 2, a fixing plate 13 detachably disposed on the top of the cleaning plate 12, and a power component disposed in the notch for lifting the cleaning plate 12;

[0040] By setting the wiping mechanism, when the protective cover 4 is flipped over to protect or open the control panel 2 and the control button 3, the cleaning plate 12 in the wiping mechanism can synchronously slide on the surface of the control panel 2 under the power component to wipe the surface of the control panel 2, clean the dust and impurities on the control panel 2, and ensure the clarity of the control panel 2 when manually observing the control panel 2.

[0041] Further, refer to Figure 3 As shown, it is worth noting that the power component includes a transmission tooth plate 14 vertically fixed on the top surface of the fixed plate 13 and a driving gear 18 tightly sleeved on the middle part of the rod body of the flip rod 5. A transmission rod 15 is horizontally arranged on the inner side of the protective cover 4. A transmission gear 16 is tightly sleeved on the rod body of the transmission rod 15. The transmission gear 16 is meshed with the driving gear 18 and the transmission tooth plate 14 respectively. Both ends of the transmission rod 15 are rotatably connected with a bearing sheet 17, and the bearing sheet 17 is vertically fixed on the side wall of the gas chromatograph body 1;

[0042] When the protective cover 4 is flipped upward, the flip rod 5 can carry the driving gear 18 to rotate clockwise, so that the driving gear 18 is meshed with the transmission gear 16, and the transmission gear 16 rotates counterclockwise and meshes with the transmission gear plate 14, and then the transmission gear plate 14 is forced to carry the cleaning plate 12 and the fixing plate 13 to slide upward as a whole to wipe the surface of the control panel 2;

[0043] Conversely, when the protective cover 4 is flipped down, the transmission gear 16 rotates forward, and the transmission gear plate 14, the cleaning plate 12 and the fixing plate 13 slide down as a whole, and the surface of the control panel 2 is wiped again.

[0044] Further, refer to Figure 3 As shown, it is worth noting that guide rods 21 vertically fixed to the top surface of the fixed plate 13 are vertically arranged on both sides of the transmission gear plate 14, and guide sleeves 22 vertically fixed to the side wall of the gas chromatograph body 1 are slidably sleeved on the rod body of the guide rod 21;

[0045] By setting the guide rod 21 and the guide sleeve 22, during the overall sliding of the cleaning plate 12 and the fixed plate 13, the guide rod 21 can be synchronously extended and retracted with the inner side of the guide sleeve 22, so that the guide rod 21 and the guide sleeve 22 can effectively limit the overall moving trajectory of the cleaning plate 12 and the fixed plate 13, ensuring the stability of the cleaning plate 12 and the fixed plate 13 during the overall movement.

[0046] Further, referring to FIG. 5 , it is worth noting that two positioning screws 19 vertically fixed to the cleaning plates 12 are symmetrically penetrated on the top surface of the fixing plate 13, and the positioning screws 19 are threadedly connected to the column of the positioning screws 19 to abut against the top surface of the fixing plate 13;

[0047] By setting the positioning screw 19 and the positioning nut 20, after a certain period of time, if a large amount of dust and impurities are attached to the cleaning plate 12, resulting in its cleaning effect being deteriorated, it is only necessary to flip the protective cover 4 upward again and turn the knob to position the nut 20 so that the positioning nut 20 withdraws from the rod of the positioning screw 19 under the threaded structure, thereby releasing the fixing effect on the cleaning plate 12, and facilitating the removal and replacement of the cleaning plate 12.

[0048] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and the specification only describe the principles of the utility model. The utility model may be subject to various changes and improvements without departing from the spirit and scope of the utility model. These changes and improvements fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A gas chromatograph for food testing, comprising a gas chromatograph body (1), a control panel (2) arranged above the side wall of the gas chromatograph body (1), and control buttons (3) arranged below the side wall of the gas chromatograph body (1), characterized in that: It also includes an anti-touch mechanism for protecting the control panel (2) and the control button (3) and a wiping mechanism for ensuring the cleanliness of the surface of the control panel (2); The anti-collision mechanism comprises a protective cover (4) attached to the side wall of the gas chromatograph body (1), the control panel (2) and the control button (3) are both located inside the protective cover (4), a notch is provided at the top of the protective cover (4), an elastic flip component is provided in the notch, and a locking component is provided at the bottom of the protective cover (4); The wiping mechanism comprises a cleaning plate (12) slidably arranged on the surface of the control panel (2), a fixing plate (13) detachably arranged on the top of the cleaning plate (12), and a power component arranged in the notch for lifting the cleaning plate (12).

2. A gas chromatograph for food testing according to claim 1, characterized in that: The elastic flip component comprises two fixing plates (6) symmetrically fixed on the side wall of the gas chromatograph body (1), and a flip rod (5) arranged between the two fixing plates (6) for transverse rotation. The body of the flip rod (5) is symmetrically fixedly sleeved with two rotating sleeves (7), and the rotating sleeves (7) are fixedly connected to the inner side wall of the notch.

3. A gas chromatograph for food testing according to claim 2, characterized in that: The elastic flip component also includes a fixing sleeve (8) which is sleeved on the end of the flip rod (5) and fixedly connected to the fixing plate (6) in a vertical manner. The flip rod (5) is also sleeved on the rod inside the fixing sleeve (8) with a torsion spring (9). One end of the torsion spring (9) is fixedly connected to the inner wall of the fixing sleeve (8), and the other end of the fixing sleeve (8) is fixedly connected to the flip rod (5) rod.

4. A gas chromatograph for food testing according to claim 1, characterized in that: The locking component comprises a locking plate (10) vertically fixed on the bottom surface of the protective cover (4) and a locking screw (11) threadedly passing through the locking plate (10), and a fixing hole matched with the locking screw (11) is opened on the side wall of the gas chromatograph body (1).

5. A gas chromatograph for food testing according to claim 2, characterized in that: The power component comprises a transmission tooth plate (14) vertically fixed on the top surface of the fixing plate (13) and a driving gear (18) tightly sleeved on the middle part of the rod body of the flip rod (5); a transmission rod (15) is transversely arranged on the inner side of the protective cover (4); a transmission gear (16) is tightly sleeved on the rod body of the transmission rod (15); the transmission gear (16) is respectively meshed with the driving gear (18) and the transmission tooth plate (14); both ends of the transmission rod (15) are rotatably connected with a bearing sheet (17); the bearing sheet (17) is vertically fixed on the side wall of the gas chromatograph body (1).

6. A gas chromatograph for food testing according to claim 5, characterized in that: Guide rods (21) vertically fixedly connected to the top surface of the fixed plate (13) are vertically arranged on both sides of the transmission gear plate (14); guide sleeves (22) vertically fixedly connected to the side walls of the gas chromatograph body (1) are slidably sleeved on the rod bodies of the guide rods (21).

7. A gas chromatograph for food testing according to claim 1, characterized in that: Two positioning screws (19) vertically fixed to the two cleaning plates (12) are symmetrically passed through the top surface of the fixing plate (13), and a positioning nut (20) is threadedly connected to the column of the positioning screw (19) and abuts against the top surface of the fixing plate (13).

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