Integrated thermogravimetric analyzer

Abstract

The utility model discloses an integrated thermogravimetric analyzer which comprises an analyzer body, a display screen arranged at the front end of the analyzer body, a heating furnace arranged at the upper end of the analyzer body, a furnace cover arranged at the upper end of the heating furnace, a sliding rail fixed at the front end of the analyzer body and positioned below the display screen, and sliding blocks connected with the left side and the right side in the sliding rail in a sliding manner, a protective plate is fixed to the upper end of the slider, and a handle is fixed to the front end of the protective plate. The slide rail and the analyzer body are fixed into an integrated structure, so that when the display screen is not used, a clamping bead inserted into a clamping hole is pressed to move into a groove, a horizontal spring in a compressed state pushes a moving block to move leftwards, the moving block can drive a lower rack to move leftwards, and the display screen is driven to move leftwards through meshing of the lower rack and a gear and meshing of the gear and an upper rack. The upper rack moves rightwards, so that the lower rack and the upper rack drive the two protection plates to be closed to block the display screen, the display screen is shielded and protected, and the display screen is prevented from being collided and damaged when not used.

Description

TECHNICAL FIELD

[0001] The utility model relates to thermal gravimetric analyzer technical field, concretely is a kind of integrated thermal gravimetric analyzer. BACKGROUND

[0002] Thermal gravimetric analyzer is a kind of instrument using thermal gravimetric method to detect the temperature-mass change relation of substance, thermal gravimetric method is under the program temperature control, the mass change relation of substance with temperature (or time) is measured, when the measured substance has sublimation, vaporization, decomposition gas or loses crystallization water in heating process, the mass of measured substance will change, at this time, thermal gravimetric curve is not straight line but has dropped, by analyzing thermal gravimetric curve, it can be known that the measured substance changes at how many degrees, and according to the weight loss, it can calculate how much substance is lost.

[0003] Thermal gravimetric analyzer is used, experimental sample is generally placed in heating furnace on analyzer, then detection is carried out by analyzer, and detection structure is displayed on display screen, and when thermal gravimetric analyzer is not used, display screen is not provided with protection mechanism, and then display screen can be damaged by collision when not used. SUMMARY

[0004] The utility model aims at overcoming the defects of prior art, provide a kind of integrated thermal gravimetric analyzer, to solve the problems raised in the above background.

[0005] A kind of integrated thermal gravimetric analyzer, including analyzer body, the display screen is installed at the front end of the analyzer body, the heating furnace is installed at the upper end of the analyzer body, the furnace cover is equipped at the upper end of the heating furnace, the slide rail is fixed at the front end of the analyzer body below display screen, the slide rail is slidably connected with the sliding block at the left and right sides in the slide rail, the sliding block is fixed with the protection plate on the upper end, the handle is fixed at the front end of the protection plate, the protection plate bottom is slidably connected with the slide rail, the protection plate rear portion is slidably connected with the analyzer body, the gear rack assembly is installed between the lower part of the sliding block, the gear rack assembly is installed with the limiting component of the slide rail clamping.

[0006] Further, the guide slot is opened in the front and rear ends of the slide rail inner wall, the guide block is fixed on the front and rear ends of the sliding block, and the guide block is located in the guide slot and is slidably connected with the guide slot.

[0007] Further, the gear rack assembly includes shaft, gear, upper rack and lower rack, the shaft is rotatably connected in the slide rail, the shaft is below the sliding block, the gear is fixed on the outer portion of the shaft, and the upper rack and lower rack are respectively engaged on the upper and lower sides of the gear.

[0008] Further, the upper rack is fixed with the lower end of the slider on the left side, the right end of the slider on the right side is fixed with a vertical plate, a through hole is formed in the surface of the vertical plate, the right part of the upper rack passes through the through hole, the lower rack is fixed with the lower end of the vertical plate, and the limiting assembly is fixed at the lower end of the lower rack.

[0009] Further, the limiting assembly comprises a moving block, a vertical spring and a clamping bead, the moving block is fixed at the lower end of the lower rack, a recess is formed in the lower end of the moving block, the clamping bead is movably arranged in the recess, the vertical spring is connected between the upper end of the clamping bead and the bottom of the recess, and a clamping hole is formed in the inner bottom of the slide rail, and the clamping bead is inserted into the clamping hole.

[0010] Further, a horizontal spring is fixedly connected between the right end of the moving block and the right end of the inner wall of the slide rail.

[0011] The utility model discloses the beneficial effects: through with the slide rail and the analysis appearance body fixed as integral structure, like this when not using display screen, press the clamping bead of inserting in the clamping hole, make clamping bead shift into recess, horizontal spring of compression state push the moving block left shift at this moment, and the moving block can drive lower rack left shift, through lower rack and gear mesh, gear and upper rack mesh, and make upper rack right shift, and lower rack and upper rack drive two pieces of protection board to close and block display screen, and this is to shield protection to display screen, prevent display screen from being damaged when not using. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 It is whole schematic diagram of the utility model;

[0013] Figure 2 It is slide rail section schematic diagram of the utility model;

[0014] Figure 3 It is the A partial schematic diagram of the utility model Figure 2 .

[0015] In the drawing: 1-analysis appearance body, 2-display screen, 3-heating furnace, 4-furnace cover, 5-protection board, 6-handle, 7-slide rail, 8-rotation axis, 9-gear, 10-slider, 11-guide groove, 12-guide block, 13-upper rack, 14-vertical plate, 15-through hole, 16-lower rack, 17-horizontal spring, 18-clamping hole, 19-moving block, 20-recess, 21-vertical spring, 22-clamping bead. DETAILED DESCRIPTION

[0016] Please refer to Figures 1-3The utility model relates to a kind of integrated thermogravimetric analyzer, including analyzer body 1, display screen 2 is installed in the front end of the analyzer body 1, heating furnace 3 is installed on the upper end of the analyzer body 1, furnace cover 4 is equipped on the upper end of the heating furnace 3, slide rail 7 is fixed with in the front end of the analyzer body 1 and below display screen 2, the inside left and right sides of slide rail 7 are slidably connected with slider 10, guide slot 11 is opened in the inner wall of slide rail 7 front and back both ends, slider 10 front and back both ends are fixed with guide block 12, guide block 12 is located inside guide slot 11 and is slidably connected with guide slot 11, the upper end of slider 10 is fixed with protective plate 5, handle 6 is fixed in the front end of protective plate 5, when preparing experiment, now machine is opened and preheats a period of time, set up desired parameter, place two empty crucibles to the crucible groove of heating furnace 3 and fix, one is empty control group and one is experimental group, when the quality change on instrument is small, just can open furnace cover 4 on, add experimental sample to corresponding crucible, then furnace cover 4 is covered, formal experiment can be started, test result is shown from display screen 2, after use, protective plate 5 is moved and closed, protective plate 5 drives slider 10 to slide in the inside of slide rail 7, simultaneously, slider 10 drives guide block 12 to slide in the inside of guide slot 11, so that display screen 2 is shielded and protected by protective plate 5, prevent display screen 2 from being damaged when not being used.

[0017] The bottom of the guard plate 5 is slidably connected with the slide rail 7, the rear of the guard plate 5 is slidably connected with the analyzer body 1, gear and rack assemblies are installed between the lower parts of the sliding blocks 10, the gear and rack assemblies comprise a rotating shaft 8, a gear 9, an upper rack 13 and a lower rack 16, the rotating shaft 8 is rotatably connected inside the slide rail 7, the rotating shaft 8 is below the sliding blocks 10, the gear 9 is fixed outside the rotating shaft 8, the upper rack 13 and the lower rack 16 are respectively meshingly connected on the upper and lower sides of the gear 9, limit assemblies which are clamped with the slide rail 7 are installed at the lower parts of the gear and rack assemblies, the upper rack 13 is fixed with the lower ends of the sliding blocks 10 on the left side, vertical plates 14 are fixed with the right ends of the sliding blocks 10 on the right side, through holes 15 are formed in the surfaces of the vertical plates 14, the right parts of the upper rack 13 pass through the through holes 15, the lower rack 16 is fixed with the lower ends of the vertical plates 14, the limit assemblies are fixed at the lower ends of the lower rack 16, when the guard plate 5 is opened, only one of the guard plates 5 needs to be pushed, so that the guard plate 5 drives the sliding blocks 10 below to slide, when the sliding blocks 10 on the left side drive the upper rack 13 to move leftwards, the upper rack 13 meshes with the gear 9, the gear 9 drives the lower rack 16 to move rightwards, at this time, the lower rack 16 drives the sliding blocks 10 on the right side to move rightwards through the vertical plates 14, and the upper rack 13 moves in the through hole 15 of the vertical plate 14, when the sliding blocks 10 on the right side drive the lower rack 16 to move rightwards through the vertical plates 14, the lower rack 16 meshes with the gear 9, so that the gear 9 drives the upper rack 13 to move leftwards, and the upper rack 13 drives the sliding blocks 10 on the left side to move leftwards, so that only one of the guard plates 5 needs to be pushed, and the other guard plate 5 can be simultaneously moved in the reverse direction, which is convenient for closing and opening the guard plate 5.

[0018] The limit assemblies comprise moving blocks 19, vertical springs 21 and clamping beads 22, the moving blocks 19 are fixed at the lower ends of the lower rack 16, recesses 20 are formed in the lower ends of the moving blocks 19, the clamping beads 22 are movably arranged inside the recesses 20, the vertical springs 21 are connected between the upper ends of the clamping beads 22 and the groove bottoms of the recesses 20, clamping holes 18 are formed in the inner bottoms of the slide rail 7, the clamping beads 22 are inserted into the clamping holes 18, when the guard plate 5 is opened and the lower rack 16 moves rightwards, the moving blocks 19 are driven by the lower rack 16 to move rightwards to correspond to the clamping beads 22 and the clamping holes 18, the vertical springs 21 in the compressed state push the clamping beads 22 to be inserted into the clamping holes 18, so that the moving blocks 19 are clamped with the slide rail 7, which can ensure the stability of the opened guard plate 5.

[0019] The horizontal spring 17 is fixedly connected between the right end of the mobile block 19 and the right end of the inner wall of the slide rail 7. When the mobile block 19 moves right, the horizontal spring 17 is pressed. When it is needed to close the protective plate 5, the clamping ball 22 inserted in the clamping hole 18 is pressed to move into the groove 20 to press the vertical spring 21. When the mobile block 19 is no longer clamped with the slide rail 7, the horizontal spring 17 in the compressed state pushes the mobile block 19 to move left. The mobile block 19 drives the lower rack 16 to move left. Through the engagement of the lower rack 16 and the gear 9 and the engagement of the gear 9 and the upper rack 13, the upper rack 13 moves right. Thus, the lower rack 16 and the upper rack 13 drive the two protective plates 5 to close and block the display screen 2. Through the fixing of the slide rail 7 and the analyzer body 1 as an integrated structure, the display screen 2 is shielded and protected when not in use, so as to prevent the display screen 2 from being damaged by collision when not in use.

Claims

1. An integrated thermogravimetric analyzer, comprising an analyzer body (1), a display screen (2) being installed at the front end of the analyzer body (1), a heating furnace (3) being installed at the upper end of the analyzer body (1), and a furnace cover (4) being provided at the upper end of the heating furnace (3), characterized in that: A slide rail (7) is fixed at the front end of the analyzer body (1) and below the display screen (2). Slide blocks (10) are slidably connected to the left and right sides of the slide rail (7). A protective plate (5) is fixed to the upper end of the slide block (10). A handle (6) is fixed to the front end of the protective plate (5). The bottom of the protective plate (5) is slidably connected to the slide rail (7). The rear of the protective plate (5) is slidably connected to the analyzer body (1). A gear rack assembly is installed between the lower parts of the slide block (10). A limit assembly that is engaged with the slide rail (7) is installed at the lower part of the gear rack assembly.

2. The integrated thermogravimetric analyzer according to claim 1, characterized in that: Guide grooves (11) are formed at both front and rear ends of the inner wall of the slide rail (7), and guide blocks (12) are fixed at both front and rear ends of the slider (10). The guide blocks (12) are located inside the guide grooves (11) and are slidably connected to the guide grooves (11).

3. The integrated thermogravimetric analyzer according to claim 1, characterized in that: The gear rack assembly comprises a rotating shaft (8), a gear (9), an upper rack (13) and a lower rack (16); the rotating shaft (8) is rotatably connected to the inside of the slide rail (7); the rotating shaft (8) is located below the slider (10); the gear (9) is fixed to the outside of the rotating shaft (8); and the upper rack (13) and the lower rack (16) are respectively meshed and connected to the upper and lower sides of the gear (9).

4. The integrated thermogravimetric analyzer according to claim 3, characterized in that: The upper rack (13) is fixed to the lower end of the left slider (10), and a vertical plate (14) is fixed to the right end of the right slider (10). A through hole (15) is opened on the surface of the vertical plate (14), and the right part of the upper rack (13) passes through the through hole (15). The lower rack (16) is fixed to the lower end of the vertical plate (14), and the limit assembly is fixed to the lower end of the lower rack (16).

5. The integrated thermogravimetric analyzer according to claim 4, characterized in that: The limit assembly includes a moving block (19), a vertical spring (21) and a card bead (22), wherein the moving block (19) is fixed to the lower end of the lower rack (16), a groove (20) is provided at the lower end of the moving block (19), the card bead (22) is movably arranged inside the groove (20), the vertical spring (21) is connected between the upper end of the card bead (22) and the bottom of the groove (20), a card hole (18) is provided at the bottom of the slide rail (7), and the card bead (22) is plugged into the card hole (18).

6. The integrated thermogravimetric analyzer according to claim 5, characterized in that: A horizontal spring (17) is fixedly connected between the right end of the moving block (19) and the right end of the inner wall of the slide rail (7).

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