Ventilation device for column oven

Abstract

The utility model relates to the technical field of column ovens, in particular to a ventilation device for a column oven. According to the technical scheme, the ventilation device for the column oven comprises an outer box, the two sides of the outer box are each provided with an air inlet window, the back face of the outer box is provided with an air outlet window, the inner bottom wall of the outer box is fixedly connected with an inner box, the top of the inner box is fixedly connected with a hollowed-out plate, and the hollowed-out plate is fixedly connected with the bottom wall of the outer box. The two sides of the inner box are each provided with an inner window. According to the air conditioner, by arranging the inner box, the hollow plate and other parts, through the mutual matching relation between the inner box and the hollow plate, external air can enter the inner box through the air inlet window and is exhausted from the air outlet window, and then the effect that air inlet and air outlet are conducted at the same time by arranging the inner box and the hollow plate is achieved; the defect that according to an existing technical scheme, the ventilation efficiency is low is overcome.

Description

Technical Field

[0001] The present application relates to the technical field of column ovens, and in particular to a ventilation device for a column oven. Background Art

[0002] The column oven, also known as the column thermostat, is a crucial component of the GX liquid chromatography analysis system. Its temperature control is crucial for precise and stable control of the column's operating temperature. This helps improve column efficiency, peak resolution and symmetry, shorten retention times, reduce column backpressure, minimize pump wear, and ultimately ensure accurate and reproducible results. Therefore, the column oven is a crucial accessory for the GX liquid chromatograph. The GX liquid chromatograph's temperature control system, comprised of a thermostat and a column oven, prevents external influences on the column temperature by setting a set temperature. Maintaining a constant column temperature is crucial for ensuring the repeatability and accuracy of analytical results.

[0003] Through searching, Chinese patent announcement number CN219834793U discloses a ventilation device for a column temperature box, comprising a main body, a mounting hole is opened on the rear surface of the inner cavity of the main body, a ventilation pipe is installed in the inner cavity of the mounting hole, a baffle is installed in the inner cavity of the ventilation pipe, a first rotating shaft is installed in the inner cavity of the baffle, one end of the first rotating shaft extends to the surface of the ventilation pipe, and a first motor is installed at the extended end, and a ventilation mechanism is installed in the inner cavity of the ventilation pipe outside the first rotating shaft. By arranging an exhaust fan, when it is necessary to discharge the air in the inner cavity of the main body, the exhaust fan is started to draw the air in the inner cavity of the main body into the inner cavity of the ventilation pipe and discharge it, and when it is necessary to draw air into the inner cavity of the main body, the second motor is started to drive the second rotating shaft to rotate, and the rotation of the second rotating shaft drives the exhaust fan to rotate 180 degrees, forcibly drawing air into the inner cavity of the main body, thereby achieving the effect of ventilating the inner cavity of the main body 1 and forcibly drawing air into the inner cavity of the main body.

[0004] With respect to the above-mentioned related technologies, the inventors have found the following defects: exhaust and intake share a ventilation mechanism, and the ventilation efficiency is low. Utility Model Content

[0005] In order to improve the ventilation efficiency inside the column oven, the present application provides a ventilation device for the column oven.

[0006] The present application provides a ventilation device for a column temperature box, which adopts the following technical solution: a ventilation device for a column temperature box, comprising an outer box, an air inlet window on both sides of the outer box, an air outlet window on the back of the outer box, a second motor fixedly installed on the inner bottom wall of the outer box, an inner box fixedly connected to the inner bottom wall of the outer box, a hollow plate fixedly connected to the top of the inner box, an inner window on both sides of the inner box, three first baffles are arranged inside each of the air inlet windows, and the inner wall of the air outlet window is rotatably connected to two active rotors, and an active baffle is provided between the two active rotors.

[0007] Optionally, two filter frames are provided inside the outer box, and each filter frame corresponds to an air inlet window.

[0008] Optionally, a long slot is provided on both sides of the outer box, three gears are provided inside each of the long slots, and two racks are slidably connected to the inner wall of the outer box.

[0009] Optionally, the inner wall of the air outlet window is rotatably connected to two driven wheels, a driven baffle is provided between the two driven wheels, and the outer surface of each driven wheel is rotatably connected to a driven connecting rod.

[0010] Optionally, the outer surface of each active rotating wheel is rotatably connected to an active connecting rod, the other end of each active connecting rod is rotatably connected to a driving bar, and the other end of each driving bar is fixedly connected to a driving member.

[0011] Optionally, a sealed door is hinged on the front of the outer box, and two first motors are fixedly installed on the inner wall of the outer box, and the output end of each of the first motors is fixedly connected to an exhaust fan.

[0012] Optionally, the output end of the second motor is fixedly connected to a screw rod, the outer surface of the screw rod is threadedly connected to a drive ring, and the outer surface of the drive ring is fixedly connected to a drive rod.

[0013] In summary, this application has the following beneficial technical effects:

[0014] 1. The present application sets up components such as an inner box and a hollow plate, and through the mutual cooperation between the inner box and the hollow plate, allows external air to enter the interior of the inner box through the air inlet window and be discharged from the air outlet window, thereby achieving the effect of simultaneous air intake and air outlet by setting up the inner box and the hollow plate, and solves the problem of low ventilation efficiency of the current technical solution.

[0015] 2. This application sets up components such as a drive bar and a drive member, and through the mutual cooperation between the drive bar and the drive member, the movable member can drive the first baffle to rotate through the rack and the gear, and the drive bar can drive the active baffle to rotate through the active connecting rod and the active rotor, thereby achieving the effect of adjusting the air inlet window and the air outlet window by setting up the drive bar and the drive member. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall front structure of the embodiment of the present application;

[0017] Figure 2 yes Figure 1 A schematic diagram of the structure at center A;

[0018] Figure 3 This is a schematic diagram of the overall back structure in the embodiment of the present application;

[0019] Figure 4 yes Figure 2 A magnified schematic diagram of the structure at B in the middle;

[0020] Figure 5 This is a schematic diagram of the internal structure of the outer box of the embodiment of the present application;

[0021] Figure 6 This is a schematic diagram of the driving rod structure in an embodiment of the present application;

[0022] Figure 7 This is a schematic diagram of the inner box structure in the embodiment of the present application;

[0023] Figure 8 It is a schematic diagram of the exhaust fan structure in an embodiment of the present application.

[0024] Figure numerals: 1, outer box; 2, air inlet window; 3, air outlet window; 4, inner box; 5, hollow plate; 6, inner window; 7, driving rod; 8, first baffle; 9, active rotor; 10, active baffle; 11, filter frame; 12, long groove; 13, gear; 14, rack; 15, driven rotor; 16, driven baffle; 17, driven connecting rod; 18, active connecting rod; 19, driving bar; 20, driving member; 21, sealing door; 22, first motor; 23, exhaust fan; 24, second motor; 25, screw; 26, driving ring. DETAILED DESCRIPTION

[0025] The following is combined with Figure 1-8 This application is described in further detail.

[0026] The present application discloses a ventilation device for a column oven. Figure 1The ventilator 2 of the present invention is provided with a plurality of air intake windows 2, and the ventilator 2 has two outer ends and a plurality of inner ends of the ventilator 2. The ventilator 2 has two outer ends and a plurality of inner ends of the ventilator 2 is provided with an air intake window 2. The ventilator 2 has two outer ends and a plurality of inner ends of the ventilator 2 is provided with an air intake window 3. The ventilator 2 has two outer ends and a plurality of inner ends of the ventilator 2 is provided with an air intake window 3.

[0027] See also Figure 2 、 Figure 4 、 Figure 6 A long slot 12 is provided on both sides of the outer box 1, each long slot 12 corresponds to an air inlet window 2, and three gears 13 are provided inside each long slot 12, each gear 13 is fixedly connected to the corresponding first baffle 8, and two racks 14 are slidably connected to the inner wall of the outer box 1, and each rack 14 is meshed with the corresponding gear 13.

[0028] See also Figure 4 、 Figure 6 A driven baffle 16 is provided between the two driven wheels 15. Both ends of the driven baffle 16 are fixedly connected to the corresponding driven wheels 15. The outer surface of each driven wheel 15 is rotatably connected to a driven connecting rod 17. The other end of each driven connecting rod 17 is fixedly connected to the corresponding driving wheel 9.

[0029] See also Figure 6 The outer surface of each active rotating wheel 9 is rotatably connected to an active connecting rod 18, and the other end of each active connecting rod 18 is rotatably connected to a driving bar 19. Each driving bar 19 is slidably connected to the inner wall of the outer box 1, and the other end of each driving bar 19 is fixedly connected to a driving member 20. Each driving member 20 is fixedly connected to the corresponding rack 14, so that the first baffle 8, the active baffle 10, and the driven baffle 16 can rotate simultaneously.

[0030] See also Figure 1 Figure 4 、 Figure 6A sealed door 21 is hinged on the front of the outer box 1, and two first motors 22 are fixedly installed on the inner wall of the outer box 1. Each first motor 22 is located above the hollow plate 5, and the output end of each first motor 22 is fixedly connected to an exhaust fan 23, and each exhaust fan 23 corresponds to the air outlet window 3.

[0031] See also Figure 4 、 Figure 6 The output end of the second motor 24 is fixedly connected to a screw rod 25, the outer surface of the screw rod 25 is threadedly connected to a drive ring 26, the outer surface of the drive ring 26 is fixedly connected to a drive rod 7, and both ends of the drive rod 7 are fixedly connected to the corresponding drive member 20. When the second motor 24 rotates, the screw rod 25 drives the drive rod 7 to move in the vertical direction through the drive ring 26.

[0032] See also Figure 6 、 Figure 7 An inner window 6 is provided on both sides of the inner box 4, and each inner window 6 corresponds to the corresponding air inlet window 2. Two filter frames 11 are provided inside the outer box 1, and each filter frame 11 corresponds to an air inlet window 2, so that the filter frame 11 can filter the air when the air enters.

[0033] The implementation principle of the ventilation device for a column temperature box in the embodiment of the present application is as follows: the second motor 24 is started, the output end of the second motor 24 drives the screw 25 to rotate, the screw 25 drives the drive ring 26 to move in the vertical direction, the drive ring 26 drives the drive rod 7 to move, the drive rod 7 drives the drive member 20 to slide on the inner wall of the outer box 1, the drive member 20 drives the rack 14 to slide, the rack 14 drives the gear 13 to mesh, the gear 13 drives the first baffle 8 to rotate inside the window 2, and at the same time the drive member 20 drives the drive bar 19 to slide, and the drive bar 19 drives the active connecting rod 18 to move. The wheel 9 rotates, the active wheel 9 drives the active baffle 10 to rotate, the active wheel 9 drives the driven wheel 15 to rotate through the driven connecting rod 17, and the driven wheel 15 drives the driven baffle 16 to rotate, thereby realizing the opening or closing of the air inlet window 2 and the air outlet window 3, starting the first motor 22, and the output end of the first motor 22 drives the exhaust fan 23 to rotate, so that the air inside the inner box 4 is discharged to the outside of the outer box 1 through the hollow plate 5 and the air outlet window 3, and the external air enters the interior of the inner box 4 through the air inlet window 2, the filter frame 11 and the inner window 6, thereby realizing ventilation of the column temperature box.

[0034] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A ventilation device for a column oven, comprising an outer box (1), characterized in that: An air inlet window (2) is provided on both sides of the outer box (1), an air outlet window (3) is provided on the back of the outer box (1), a second motor (24) is fixedly mounted on the inner bottom wall of the outer box (1), an inner box (4) is fixedly connected to the inner bottom wall of the outer box (1), a hollow plate (5) is fixedly connected to the top of the inner box (4), an inner window (6) is provided on both sides of the inner box (4), three first baffles (8) are provided inside each of the air inlet windows (2), and two active rotors (9) are rotatably connected to the inner wall of the air outlet window (3), and an active baffle (10) is provided between the two active rotors (9).

2. A ventilation device for a column oven according to claim 1, characterized in that: Two filter frames (11) are provided inside the outer box (1), and each filter frame (11) corresponds to an air inlet window (2).

3. A ventilation device for a column oven according to claim 1, characterized in that: A long slot (12) is provided on both sides of the outer box (1), three gears (13) are provided inside each of the long slots (12), and two racks (14) are slidably connected to the inner wall of the outer box (1).

4. A ventilation device for a column oven according to claim 1, characterized in that: The inner wall of the air outlet window (3) is rotatably connected to two driven rotors (15), a driven baffle (16) is provided between the two driven rotors (15), and the outer surface of each driven rotor (15) is rotatably connected to a driven connecting rod (17).

5. A ventilation device for a column oven according to claim 1, characterized in that: The outer surface of each active rotating wheel (9) is rotatably connected to an active connecting rod (18), the other end of each active connecting rod (18) is rotatably connected to a driving bar (19), and the other end of each driving bar (19) is fixedly connected to a driving member (20).

6. A ventilation device for a column oven according to claim 1, characterized in that: A sealing door (21) is hinged on the front of the outer box (1), and two first motors (22) are fixedly mounted on the inner wall of the outer box (1), with an exhaust fan (23) fixedly connected to the output end of each first motor (22).

7. A ventilation device for a column oven according to claim 1, characterized in that: The output end of the second motor (24) is fixedly connected to a screw rod (25), the outer surface of the screw rod (25) is threadedly connected to a drive ring (26), and the outer surface of the drive ring (26) is fixedly connected to a drive rod (7).

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