Meteorological chromatograph for detecting liquid crystal additive

Abstract

The meteorological chromatographic instrument comprises an instrument main body, the front part of the instrument main body is connected with a control panel, the right side of the instrument main body is connected with a heat dissipation opening, and the front part of the instrument main body close to the control panel is provided with a box door through a rotating shaft; according to the gas chromatograph for liquid crystal additive detection, automatic film changing of the device can be achieved through a first motor and a second motor, so that corrosion of external factors such as dust and oil stains to a control panel is prevented, the service life of the control panel is prolonged, an extrusion block drives an extrusion pad to move to the side face of a radiator for extrusion, and the production efficiency is improved. An extrusion pad can position the radiator through extrusion deformation, so that the radiator can extract hot air from the interior of the device, the cooling efficiency is improved, an extension groove and a limiting groove can be driven to move by pulling an extrusion block, the extrusion block can be driven to extend through movement of the extension groove and the limiting groove, and the cooling device is suitable for radiators of different specifications; the stability of the extrusion mechanism radiator is also improved.

Description

Technical Field

[0001] The utility model relates to the technical field of gas chromatographs, in particular to a gas chromatograph for detecting liquid crystal additives. Background Art

[0002] Gas chromatograph is an instrument that uses chromatographic separation and detection technology to perform qualitative and quantitative analysis on complex mixtures of multiple components. It can usually be used to analyze organic matter in soil that is thermally stable and has a boiling point not exceeding 500°C.

[0003] In the prior art, a Chinese patent with authorization announcement number CN219641647U discloses a meteorological chromatograph for detecting liquid crystal additives, which belongs to the field of gas chromatographs. Its technical highlights are that the meteorological chromatograph that is easy to move includes a meteorological chromatograph body; a mounting groove, which is opened in the meteorological chromatograph body; a moving component, which includes a sliding groove, an adjusting slide rod and a universal pulley. There are multiple sliding grooves, adjusting slide rods and universal pulleys, and multiple sliding grooves are opened on the inner walls on both sides of the mounting groove. The adjusting slide rod is slidably connected to the sliding groove, and the universal pulley is fixedly connected to the lower end of the adjusting slide rod. When the device is installed and moved, the mobile component is operated to drive the device to move, which is convenient for installation and use.

[0004] At present, most chromatographs on the market still have certain deficiencies when in use. As shown in the above-mentioned document, the instrument uses a universal pulley to facilitate the movement of the instrument, but the machine is stationary most of the time, and the hands of the user may not be very clean when operating the instrument, which can easily leave traces of use on the control panel. Secondly, the heat dissipation effect of the equipment is not very good, and natural heat dissipation makes it difficult to keep the equipment running continuously at high power, making it inconvenient to use. Utility Model Content

[0005] The utility model aims to provide a gas chromatograph for detecting liquid crystal additives, so as to solve the problems in the above background technology that the chromatograph is inconvenient to protect the control panel and has poor heat dissipation effect.

[0006] To achieve the above object, the utility model provides the following technical solution: a gas chromatograph for detecting liquid crystal additives, comprising an instrument body, a control panel connected to the front of the instrument body, a heat dissipation port connected to the right side of the instrument body, and a box door installed at the front of the instrument body near the control panel through a rotating shaft;

[0007] A first fixing block is symmetrically fixed to the front of the instrument body, and a protective mechanism is provided at the bottom of the first fixing block, which can prevent the control panel from being affected by the external environment, such as moisture, dust, and oil stains, thereby extending the service life of the keypad;

[0008] An external block is fixed on the right side of the instrument body, and an extrusion mechanism is arranged inside the external block. The heat dissipation device can be fixed by the extrusion mechanism, thereby improving the heat dissipation effect of the instrument.

[0009] Furthermore, the protection mechanism includes a first motor, and the first motor is installed on the top of the first fixed block. The output end of the first motor is fixed with a first rotating roller through the first fixed block, and a second fixed block is symmetrically fixed to the front of the instrument body away from the first fixed block.

[0010] Furthermore, a second rotating roller is rotatably connected inside the second fixed block, an adsorption film is connected between the second rotating roller and the first rotating roller, a rotating groove is opened through the front of the instrument body, a first threaded rod is rotatably connected inside the rotating groove, and a second motor is installed on the left side of the control panel.

[0011] Furthermore, the output end of the second motor is fixed to the end of the first threaded rod, a sliding block is threadedly connected to the surface of the first threaded rod, the sliding block slides through the rotating groove, a separation rod is fixed to the front end of the sliding block, and the separation rod is connected to the inner side of the adsorption membrane.

[0012] Furthermore, a telescopic groove is opened in the front of the sliding block, and a telescopic block slides through the telescopic groove, a spring is connected between the telescopic block and the telescopic groove, a connecting block is fixed to the left end of the telescopic block, and a bonding roller is rotatably connected to the bottom of the connecting block, and the bonding roller rolls on the outside of the adsorption film.

[0013] Furthermore, the extrusion mechanism includes a slide groove, and the slide groove is symmetrically opened on the upper surface of the external block, an extrusion block slides through the slide groove, and an extension mechanism is arranged inside the extrusion block, a sliding rod is connected to the bottom of the extrusion block, a second threaded rod is threadedly connected through the sliding rod, a rotating block is fixed to the end of the second threaded rod, an extrusion pad is connected to the front of the extrusion block, and a radiator is arranged on the top of the external block.

[0014] Furthermore, the extension mechanism includes an extension groove, and the extension groove is opened at the bottom of the extrusion block, and the side of the extension groove is symmetrically opened with a limiting groove, an extension block slides through the extension groove, and a sliding rod is fixed at the bottom of the extension block, a limiting block is opened on the side of the extension block, and the extension block is connected to friction pads at the front and back.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] 1. The liquid crystal additive detection gas chromatograph can realize automatic film replacement of the device through the first motor and the second motor, thereby preventing external factors such as dust, oil stains, etc. from corroding the control panel, and improving the service life of the control panel. The extrusion pad is driven by the extrusion block to move to the side of the radiator for extrusion. The extrusion pad can position the radiator through extrusion deformation, so that the radiator can extract hot air from the inside of the device, thereby improving the cooling efficiency. Secondly, pulling the extrusion block can drive the extension groove and the limit groove to move. The movement of the extension groove and the limit groove can drive the extrusion block to extend, adapting to radiators of different specifications, and also improving the stability of the radiator of the extrusion mechanism;

[0017] 2. A first rotating roller and a second rotating roller are provided. The automatic replacement of the adsorption film can be realized by rolling up the first rotating roller and rolling out the second rotating roller, so as to prevent the stains on the hands from corroding the control panel and improve the service life of the control panel;

[0018] 3. A spring and a telescopic block are provided, and the elastic force between the spring and the telescopic block can drive the laminating roller to roll on the surface of the control panel, thereby improving the laminating quality of the adsorption film;

[0019] 4. A radiator is provided. By placing the radiator close to the side of the heat dissipation port, the hot air inside the instrument can be drawn out through the heat dissipation port, thereby improving the heat dissipation effect of the instrument, allowing the machine to continue to work at a high intensity, thereby improving work efficiency in disguise;

[0020] 5. An extrusion pad is provided, which can improve the stability of the extrusion block in extruding the radiator, prevent the radiator from slipping and falling due to external interference, has little restriction on the specifications of the radiator, and is easy to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model;

[0022] Figure 2 This is a schematic diagram of the split three-dimensional structure of the control panel of the utility model;

[0023] Figure 3 This is a schematic diagram of the cross-sectional three-dimensional structure of the control panel of the utility model;

[0024] Figure 4 This is an enlarged three-dimensional structural schematic diagram of the laminating roller of the utility model;

[0025] Figure 5 This is an enlarged sectional three-dimensional structural diagram of the sliding block of the utility model;

[0026] Figure 6 This is an enlarged three-dimensional structural diagram of the radiator of the utility model;

[0027] Figure 7This is a schematic diagram of the sectional three-dimensional structure of the external connection block of the utility model;

[0028] Figure 8 It is a schematic diagram of the sectional and split three-dimensional structure of the extrusion block of the utility model.

[0029] In the figure: 1. instrument body; 2. control panel; 3. heat dissipation port; 4. box door; 101. first fixed block; 102. first motor; 103. first rotating roller; 104. second fixed block; 105. second rotating roller; 106. adsorption film; 107. rotating groove; 108. first threaded rod; 109. second motor; 110. sliding block; 111. separation rod; 112. telescopic groove; 113. telescopic block; 114. spring; 115. connecting block; 116. laminating roller; 117. external block; 118. slide groove; 119. extrusion block; 120. sliding rod; 121. second threaded rod; 122. rotating block; 123. extrusion pad; 124. radiator; 125. extension groove; 126. limit groove; 127. extension block; 128. limit block; 129. friction pad. DETAILED DESCRIPTION

[0030] 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. Embodiment 1

[0031] like Figure 1-Figure 5 The technical solution shown in the figure, the present invention provides the following technical solution: In order to solve the problem that the control panel 2 of the chromatograph is easily contaminated with oil stains, dust and the like, which may affect the service life of the control panel 2, a protective mechanism is disclosed:

[0032] The utility model comprises an instrument body 1, a control panel 2 is connected to the front of the instrument body 1, a heat dissipation port 3 is connected to the right side of the instrument body 1, a box door 4 is installed at the front of the instrument body 1 near the control panel 2 through a rotating shaft, a first fixing block 101 is symmetrically fixed to the front of the instrument body 1 up and down, a protective mechanism is arranged at the bottom of the first fixing block 101, and the control panel 2 can be prevented from being affected by the external environment, such as moisture, dust, and oil stains, so as to extend the service life of the keypad, an external block 117 is fixed to the right side of the instrument body 1, and an extrusion mechanism is arranged inside the external block 117, and the heat dissipation device can be fixed by the extrusion mechanism, so as to improve the heat dissipation effect of the instrument.

[0033] The protection mechanism includes a first motor 102, and the first motor 102 is installed on the top of the first fixed block 101, the output end of the first motor 102 is fixed with a first rotating roller 103 through the first fixed block 101, a second fixed block 104 is symmetrically fixed to the front of the instrument body 1 away from the first fixed block 101, a second rotating roller 105 is rotatably connected inside the second fixed block 104, an adsorption film 106 is connected between the second rotating roller 105 and the first rotating roller 103, a rotating groove 107 is opened through the front of the instrument body 1, a first threaded rod 108 is rotatably connected inside the rotating groove 107, and a second motor 109 is installed on the left side of the control panel 2;

[0034] The output end of the second motor 109 is fixed to the end of the first threaded rod 108. The surface of the first threaded rod 108 is threadedly connected with a sliding block 110. The sliding block 110 slides through the rotating groove 107. A separation rod 111 is fixed to the front end of the sliding block 110, and the separation rod 111 is connected to the inner side of the adsorption film 106. A telescopic groove 112 is opened at the front of the sliding block 110, and a telescopic block 113 slides through the telescopic groove 112. A spring 114 is connected between the telescopic block 113 and the telescopic groove 112. A connecting block 115 is fixed to the left end of the telescopic block 113. The bottom of the connecting block 115 is connected to the rotation connection. The laminating roller 116 is connected, and the laminating roller 116 rolls on the outside of the adsorption film 106. Before the chromatograph is used, the output end of the second motor 109 is started to drive the first threaded rod 108 to rotate. When the first threaded rod 108 rotates, it can drive the sliding block 110 to slide in a thread. When the sliding block 110 slides in a thread, it can slide through the rotating groove 107. At the same time, the sliding block 110 can drive the separation rod 111 and the laminating roller 116 to move. When the separation rod 111 moves to a specified position, it can squeeze the inner side of the adsorption film 106. After being squeezed, the adsorption film 106 can be separated from the control board 2, and the separation is started. The output end of the first motor 102 can drive the first rotating roller 103 to rotate. When the first rotating roller 103 rotates, the adsorption film 106 can be wound. When the adsorption film 106 is wound, the second rotating roller 105 can be rotated by the second fixed block 104. When the second rotating roller 105 rotates, the adsorption film 106 on the surface can be rolled out. When the newly rolled adsorption film 106 is rolled to the front of the control board 2, the second motor 109 can drive the sliding block 110 to reset through the thread sliding of the first threaded rod 108. When resetting, the sliding block 110 can drive the laminating roller 116 to move and roll on the surface of the control board 2 When the laminating roller 116 rolls, it can drive the telescopic block 113 to move through the connecting block 115. When the telescopic block 113 moves, it can slide through the telescopic groove 112, and the telescopic block 113 can squeeze the spring 114. After being squeezed, the spring 114 can generate a reaction force, thereby driving the laminating roller 116 to roll on the surface of the control board 2. When the laminating roller 116 rolls, the newly displayed adsorption film 106 can be attached to the front of the control board 2, thereby realizing automatic film replacement of the device, thereby preventing external factors such as dust, oil stains, etc. from corroding the control board 2, and improving the service life of the control board 2. Embodiment 2

[0035] like Figure 1 , Figure 6 and Figure 7 The technical solution shown in the figure, the present invention provides the following technical solution: In order to solve the problem that the chromatograph has unsatisfactory heat dissipation effect and cannot work at high intensity for a long time, an extrusion mechanism is disclosed:

[0036] The extrusion mechanism includes a slide groove 118, and the slide groove 118 is symmetrically opened on the upper surface of the external block 117. An extrusion block 119 is slidably penetrated in the slide groove 118, and an extension mechanism is arranged inside the extrusion block 119. A slide rod 120 is connected to the bottom of the extrusion block 119. A second threaded rod 121 is threadedly connected to the inside of the slide rod 120. A rotating block 122 is fixed to the end of the second threaded rod 121. An extrusion pad 123 is connected to the front of the extrusion block 119. A heat sink 124 is arranged on the top of the external block 117. The heat sink 124 is moved to a designated position on the side of the heat dissipation port 3, and the heat sink 124 is rotated. The rotating block 122 can drive the second threaded rod 121 to rotate. When the second threaded rod 121 rotates, it can drive the sliding rod 120 to slide threadedly. When the sliding rod 120 slides threadedly, it can slide through the sliding groove 118. When the sliding rod 120 slides, it can drive the extrusion pad 123 to move through the extrusion block 119. When the extrusion pad 123 moves to the side of the radiator 124, it is extruded. The extrusion pad 123 can position the radiator 124 through extrusion deformation. After the radiator 124 is positioned, the hot air can be extracted from the inside of the device through the internal impeller, thereby improving the cooling efficiency. Embodiment 3

[0037] like Figure 7 and Figure 8 The technical solution shown in the figure, the present invention provides the following technical solution: In order to solve the problem that the extrusion strength of the extrusion mechanism of the device is not high and the extrusion is not stable enough, on the basis of the second embodiment, an extension mechanism is disclosed:

[0038] The extension mechanism includes an extension groove 125, and the extension groove 125 is provided at the bottom of the extrusion block 119, and a limit groove 126 is symmetrically provided on the side of the extension groove 125. An extension block 127 is slidably penetrated inside the extension groove 125, and a slide bar 120 is fixed at the bottom of the extension block 127, and a limit block 128 is provided on the side of the extension block 127, and friction pads 129 are connected to the front and rear of the extension block 127. Before the extrusion mechanism is used, pulling the extrusion block 119 can drive the extension groove 125 and the limit groove 126 to move, and the extension groove 125 moves When the friction pad 129 moves, the friction pad 129 can be squeezed. When the friction pad 129 is squeezed and deformed, the extension groove 125 can slide through the extension block 127. When the limit groove 126 moves, it can slide through the limit block 128. When the extrusion block 119 slides to the specified position, the friction pad 129 can be reset to increase the friction force. When the friction force increases, the extrusion block 119 can be driven to position. When the extrusion block 119 is positioned, the height can be extended to adapt to radiators 124 of different specifications, and the stability of the extrusion mechanism radiator 124 is improved.

[0039] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A gas chromatograph for detecting liquid crystal additives, comprising an instrument body (1), the front of the instrument body (1) being connected to a control panel (2), the right side of the instrument body (1) being connected to a heat dissipation port (3), the front of the instrument body (1) near the control panel (2) being equipped with a chamber door (4) via a rotating shaft, characterized in that ； A first fixing block (101) is symmetrically fixed to the front of the instrument body (1) in the upper and lower parts, and a protective mechanism is provided at the bottom of the first fixing block (101). The protective mechanism can prevent the control panel (2) from being affected by the external environment, such as moisture, dust, and oil stains, thereby extending the service life of the key panel; An external block (117) is fixed on the right side of the instrument body (1), and a squeezing mechanism is arranged inside the external block (117). The heat dissipation device can be fixed by the squeezing mechanism, thereby improving the heat dissipation effect of the instrument.

2. A gas chromatograph for detecting liquid crystal additives according to claim 1, characterized in that: The protection mechanism comprises a first motor (102), and the first motor (102) is mounted on the top of a first fixing block (101); a first rotating roller (103) is fixed to an output end of the first motor (102) via the first fixing block (101); and a second fixing block (104) is symmetrically fixed to the front of the instrument body (1) away from the first fixing block (101).

3. A gas chromatograph for detecting liquid crystal additives according to claim 2, characterized in that: A second rotating roller (105) is rotatably connected inside the second fixed block (104), an adsorption film (106) is connected between the second rotating roller (105) and the first rotating roller (103), a rotating groove (107) is formed through the front of the instrument body (1), a first threaded rod (108) is rotatably connected inside the rotating groove (107), and a second motor (109) is installed on the left side of the control panel (2).

4. The gas chromatograph for detecting liquid crystal additives according to claim 3, characterized in that: The output end of the second motor (109) is fixed to the end of the first threaded rod (108); a sliding block (110) is threadedly connected to the surface of the first threaded rod (108); the sliding block (110) slides through the inside of the rotating groove (107); a separation rod (111) is fixed to the front end of the sliding block (110), and the separation rod (111) is connected to the inner side of the adsorption film (106).

5. The gas chromatograph for detecting liquid crystal additives according to claim 4, characterized in that: A telescopic groove (112) is provided at the front of the sliding block (110), and a telescopic block (113) is slidably inserted into the telescopic groove (112), a spring (114) is connected between the telescopic block (113) and the telescopic groove (112), a connecting block (115) is fixed to the left end of the telescopic block (113), a laminating roller (116) is rotatably connected to the bottom of the connecting block (115), and the laminating roller (116) rolls on the outside of the adsorption film (106).

6. The gas chromatograph for detecting liquid crystal additives according to claim 1, characterized in that: The extrusion mechanism comprises a slide groove (118), and the slide groove (118) is symmetrically opened on the upper surface of the external block (117); an extrusion block (119) slides through the slide groove (118), and an extension mechanism is arranged inside the extrusion block (119); a slide rod (120) is connected to the bottom of the extrusion block (119); a second threaded rod (121) is threadedly connected to the inside of the slide rod (120); a rotating block (122) is fixed to the end of the second threaded rod (121); an extrusion pad (123) is connected to the front of the extrusion block (119); and a heat sink (124) is arranged on the top of the external block (117).

7. A gas chromatograph for detecting liquid crystal additives according to claim 6, characterized in that: The extension mechanism comprises an extension groove (125), and the extension groove (125) is provided at the bottom of the extrusion block (119), and the side of the extension groove (125) is symmetrically provided with a limit groove (126), an extension block (127) slides through the extension groove (125), and a slide rod (120) is fixed at the bottom of the extension block (127), a limit block (128) is provided on the side of the extension block (127), and the extension block (127) is connected to friction pads (129) at the front and rear.

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