Vacuum drying oven

Abstract

The utility model discloses a vacuum drying oven, and belongs to the field of drying ovens. The vacuum drying oven comprises a machine shell; a pressure gauge, a control screen, a vacuum tube, a sealing door and a valve switch are installed on the front side of the machine shell. The multiple racks are fixedly connected to the side wall of the vacuum cavity. The multiple sliding blocks are connected to the side wall of the vacuum cavity in a sliding mode. The driving piece is arranged in the sliding block and used for driving the sliding block to move. The mounting frame is fixedly connected to the sliding block; the placing rack is slidably mounted on the mounting rack; the lifting part is arranged on the mounting frame and used for driving the placing frame to move up and down; the multiple containing grooves are formed in the containing frame at equal intervals. And the bottom bracket is fixedly connected to the bottom wall of the placement frame. The vacuum drying box has the beneficial effects that the height between the test tube racks can be adjusted at will according to the lengths of test tubes, and the vacuum drying box is suitable for the test tubes with different lengths.

Description

Technical Field

[0001] The present application relates to the field of drying ovens, and in particular to a vacuum drying oven. Background Art

[0002] Test tubes are commonly used instruments in laboratories. They are used as reaction containers for small amounts of reagents and are used at room temperature or when heated. During the experiment, the cleaned test tubes need to be placed on a test tube rack to dry. When test tubes with high cleanliness requirements are placed on the test tube rack, there will still be residual moisture on the test tubes, which will be contaminated by the outside world. In addition, the test tubes will collide after being placed, which can easily cause the test tubes to break. Carefully cleaning and timely drying test tubes is a time-consuming and labor-intensive task. At present, a vacuum drying oven is usually used to dry and disinfect test tubes. However, when drying and disinfecting test tubes, the test tubes need to be placed on a test tube rack. Since the test tubes are of different lengths, the height of the test tube rack in the vacuum drying oven is fixed and cannot be adjusted according to the length of the test tubes.

[0003] A vacuum drying oven is now provided. Utility Model Content

[0004] The content of this application is used to briefly introduce concepts that will be described in detail in the detailed description section below. The content of this application is not intended to identify key features or essential features of the technical solution for which protection is sought, nor is it intended to limit the scope of the technical solution for which protection is sought.

[0005] In order to solve the technical problems mentioned in the above background technology section, some embodiments of the present application provide a vacuum drying oven, comprising: a housing;

[0006] The invention is characterized in that: a vacuum chamber is provided on the casing, and a pressure gauge, a control panel, a vacuum tube, a sealing door and a valve switch are installed on the front side of the casing;

[0007] The vacuum drying oven also includes:

[0008] A plurality of racks are provided and are respectively fixedly connected to the side walls of the vacuum chamber;

[0009] Slide blocks are provided in plurality and are respectively slidably connected to the side walls of the vacuum chamber;

[0010] A driving member is provided in the slider and is used to drive the slider to move;

[0011] A mounting frame fixedly connected to the slider;

[0012] A placement rack is slidably mounted on the mounting rack;

[0013] A lifting member is provided on the mounting frame and is used to drive the placement frame to move up and down;

[0014] There are multiple placement slots, which are evenly spaced on the placement rack;

[0015] The bottom bracket is fixedly connected to the bottom wall of the placement rack.

[0016] Furthermore, the driving member includes:

[0017] A driving motor is fixedly connected to the slider;

[0018] A gear fixedly connected to the output shaft of the drive motor;

[0019] Among them, the gear meshes with the rack.

[0020] Furthermore, the lifting member includes:

[0021] The lifting motor is fixedly connected to the mounting frame;

[0022] A screw rod is fixedly connected to the output shaft of the lifting motor;

[0023] A guide rod fixedly connected to the mounting frame;

[0024] The screw rod passes through the placement frame and is threadedly connected to the placement frame, and the guide rod passes through the placement frame and is slidably connected to the placement frame.

[0025] Furthermore, the racks are fixedly connected to the side wall of the vacuum chamber in a symmetrical manner in pairs, the racks pass through the slider, and the slider is slidably connected relative to the racks.

[0026] Furthermore, a plurality of mounting brackets are provided and are respectively fixedly connected to the side wall of each slider, and the mounting brackets are symmetrically positioned and arranged opposite to each other.

[0027] Furthermore, both ends of the placement rack are slidably connected to the mounting racks on both sides.

[0028] Furthermore, a plurality of guide rods are provided and are fixedly connected to the mounting frame in symmetrical positions. The guide rods on both sides respectively pass through the two ends of the placement frame and are in sliding contact with the placement frame.

[0029] Furthermore, the bottom bracket is a U-shaped plate, and both ends of the U-shape of the bottom bracket are respectively fixedly connected to the bottom wall of the placement rack.

[0030] Furthermore, a cavity is provided on the sealed door, and tempered glass is installed on the cavity. The side wall of the tempered glass is in sealing contact with the side wall of the cavity, and a sealing ring is installed on the casing on the front side of the vacuum chamber.

[0031] Furthermore, the vacuum tube passes through the side wall of the casing and is connected to the vacuum chamber. An electromagnetic vacuum valve is installed in the vacuum tube, and the valve switch is electrically connected to the electromagnetic vacuum valve.

[0032] The beneficial effect of the present application is that it provides a vacuum drying oven that can arbitrarily adjust the height between test tube racks according to the length of the test tubes and is suitable for test tubes of different lengths. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] The drawings constituting a part of this application are used to provide a further understanding of this application and make other features, purposes and advantages of this application more apparent. The drawings and descriptions of the exemplary embodiments of this application are used to explain this application and do not constitute an improper limitation on this application.

[0034] In addition, throughout the drawings, the same or similar reference numerals represent the same or similar elements. It should be understood that the drawings are schematic and that the elements and components are not necessarily drawn to scale.

[0035] In the attached figure:

[0036] Figure 1 is an overall schematic diagram according to an embodiment of the present application;

[0037] Figure 2 It is a structural diagram of a part of the embodiment, mainly showing the lifting member structure;

[0038] Figure 3 It is a schematic cross-sectional view of a part of the embodiment, mainly showing the structure of the driving member.

[0039] Reference numerals:

[0040] 11. Casing; 12. Vacuum chamber; 13. Sealing door; 14. Tempered glass; 15. Sealing ring; 16. Pressure gauge; 17. Vacuum tube; 18. Control panel; 19. Valve switch; 20. Rack; 21. Slider; 22. Mounting bracket; 23. Lifting motor; 24. Screw; 25. Guide rod; 26. Placement rack; 27. Placement slot; 28. Bottom bracket; 29. ​​Drive motor; 30. Gear. DETAILED DESCRIPTION

[0041] Embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although certain embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be construed as being limited to the embodiments described herein. On the contrary, these embodiments are provided to provide a more thorough and complete understanding of the present disclosure. It should be understood that the drawings and embodiments of the present disclosure are for illustrative purposes only and are not intended to limit the scope of protection of the present disclosure.

[0042] It should also be noted that, for ease of description, only the parts related to the invention are shown in the drawings. In the absence of conflict, the embodiments and features in the embodiments of the present disclosure may be combined with each other.

[0043] It should be noted that the concepts of "first" and "second" mentioned in this disclosure are only used to distinguish different devices, modules or units, and are not used to limit the order or interdependence of the functions performed by these devices, modules or units.

[0044] It should be noted that the modifications of "one" and "multiple" mentioned in the present disclosure are illustrative rather than restrictive, and those skilled in the art should understand that unless otherwise clearly indicated in the context, they should be understood as "one or more".

[0045] The present disclosure will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments.

[0046] Reference Figure 1-Figure 3 A vacuum drying oven includes: a casing 11, a pressure gauge 16, a control panel 18, a vacuum tube 17, a sealing door 13, a valve switch 19, a rack 20, a slider 21, a mounting frame 22, a placement frame 26, and a bottom bracket 28.

[0047] The housing 11 is equipped with a vacuum chamber 12. A pressure gauge 16, a control panel 18, a vacuum tube 17, a sealed door 13, and a valve switch 19 are mounted on the front of the housing 11. The sealed door 13 defines a cavity, which is fitted with tempered glass 14. The sidewalls of the tempered glass 14 seal against the sidewalls of the cavity. A sealing ring 15 is mounted on the housing 11 in front of the vacuum chamber 12. A vacuum tube 17 extends through the sidewalls of the housing 11 and communicates with the vacuum chamber 12. An electromagnetic vacuum valve is installed within the vacuum tube 17, and the valve switch 19 is electrically connected to the electromagnetic vacuum valve. The control panel 18 is electrically connected to the lift motor 23 and the drive motor 29. The end of the vacuum tube 17 extending outside the housing 11 is connected to an air pump.

[0048] A plurality of racks 20 are provided and are fixedly connected to the side walls of the vacuum chamber 12, and a plurality of sliders 21 are provided and are slidably connected to the side walls of the vacuum chamber 12. The racks 20 are symmetrically fixedly connected to the side walls of the vacuum chamber 12 in pairs. The racks 20 pass through the sliders 21 and the sliders 21 are slidably connected relative to the racks 20.

[0049] Multiple mounting brackets 22 are provided and fixedly connected to the side walls of each slider 21. The mounting brackets 22 are symmetrically positioned and opposite each other. A placement bracket 26 is slidably connected to the mounting brackets 22 on either side at both ends. The placement bracket 26 is provided with multiple placement slots 27 at equal intervals. A bottom bracket 28 is a U-shaped plate, with both ends of the U-shaped bottom bracket 28 fixedly connected to the bottom wall of the placement bracket 26.

[0050] In order to drive the slider 21 to move, a driving member is also provided, which includes: a driving motor 29 and a gear 30; the driving motor 29 is fixedly connected to the slider 21, and the gear 30 is fixedly connected to the output shaft of the driving motor 29, and the gear 30 is engaged with the rack 20.

[0051] In order to drive the placement frame 26 to move up and down, a lifting component is also provided. The lifting component includes: a lifting motor 23, a screw rod 24, and a guide rod 25. The lifting motor 23 is fixedly connected to the mounting frame 22, the screw rod 24 is fixedly connected to the output shaft of the lifting motor 23, and the guide rod 25 is fixedly connected to the mounting frame 22. The screw rod 24 passes through the placement frame 26 and is threadedly connected to the placement frame 26. The guide rod 25 passes through the placement frame 26 and is slidably connected to the placement frame 26. There are multiple guide rods 25, and they are fixedly connected to the mounting frame 22 in a symmetrical position. The guide rods 25 on both sides respectively pass through the two ends of the placement frame 26 and are slidably connected to the placement frame 26.

[0052] Working or installation process:

[0053] The drive motor 29 is started by the control panel 18, and the output shaft of the drive motor 29 drives the gear 30 to rotate. The gear 30 meshes with the rack 20 and drives the slider 21 to move along the extension direction of the rack 20; the slider 21 drives the mounting frame 22 to move along the extension direction of the rack 20 toward the front side of the casing 11 until part of the placement rack 26 extends out of the vacuum chamber 12. According to the length of the test tube, the distance between the two placement racks 26 needs to be adjusted to avoid the test tube being too long and unable to be placed on the placement rack 26; at this time, the two lifting motors 23 at the same horizontal height are started synchronously, and the output shaft of the lifting motor 23 drives the screw rod 24 to rotate. The screw rod 24 is threadedly connected to the two ends of the placement rack 26 and drives the placement rack 26 to move up and down, thereby adjusting the distance between the two placement racks 26 so that the distance between the bottom wall of the upper bottom bracket 28 and the lower placement rack 26 is greater than the length of the test tube.

[0054] The test tubes used in the laboratory are placed one by one in the placement slots 27, with the lower ends of the test tubes resting on the top wall of the bottom bracket 28. When all the test tubes are placed in each placement slot 27, the drive motor 29 is reversed and drives the slider 21 to move into the vacuum chamber 12.

[0055] Then, the sealing door 13 is closed to seal the vacuum chamber 12, the valve switch 19 is turned to open the electromagnetic vacuum valve, the air pump is started, and the vacuum chamber 12 is vacuumed through the vacuum tube 17. After a period of time, the test tubes in the vacuum chamber 12 are all vacuum-dried.

[0056] Then the air pump is started in reverse and the vacuum chamber 12 is inflated. The pressure gauge 16 is observed. When the air pressure in the vacuum chamber 12 reaches the standard pressure, the air pump is turned off and the sealing door 13 is opened. The drive motor 29 is started again and the drive motor 29 transports the placement rack 26 forward. The test tubes that have completed vacuum drying are removed from the placement rack 26 in turn.

[0057] The above description is only an illustration of some preferred embodiments of the present disclosure and the technical principles used. Those skilled in the art should understand that the scope of the invention involved in the embodiments of the present disclosure is not limited to the technical solutions formed by the specific combination of the above-mentioned technical features, but should also cover other technical solutions formed by any combination of the above-mentioned technical features or their equivalent features without departing from the above-mentioned inventive concept. For example, the above-mentioned features are replaced with (but not limited to) technical features with similar functions disclosed in the embodiments of the present disclosure.

Claims

1. A vacuum drying oven, comprising: Housing (11); The invention is characterized in that: a vacuum chamber (12) is provided on the housing (11); a pressure gauge (16), a control panel (18), a vacuum tube (17), a sealing door (13) and a valve switch (19) are installed on the front side of the housing (11); The vacuum drying oven also includes: A plurality of racks (20) are provided and are respectively fixedly connected to the side walls of the vacuum chamber (12); Slide blocks (21), provided in plurality and respectively slidably connected to the side walls of the vacuum chamber (12); A driving member, disposed in the slider (21), for driving the slider (21) to move; A mounting frame (22) fixedly connected to the slider (21); A placement rack (26) is slidably mounted on the mounting rack (22); A lifting member is provided on the mounting frame (22) and is used to drive the placement frame (26) to move up and down; A plurality of placement slots (27) are provided and are arranged on the placement rack (26) at equal intervals; The bottom bracket (28) is fixedly connected to the bottom wall of the placement rack (26).

2. The vacuum drying oven according to claim 1, characterized in that: The driving member includes: A driving motor (29) is fixedly connected to the slider (21); A gear (30) is fixedly connected to the output shaft of the drive motor (29); Wherein, the gear (30) is meshed with the rack (20).

3. The vacuum drying oven according to claim 2, characterized in that: The lifting member comprises: A lifting motor (23) is fixedly connected to the mounting frame (22); A screw rod (24) is fixedly connected to the output shaft of the lifting motor (23); A guide rod (25) fixedly connected to the mounting frame (22); The screw rod (24) passes through the placement rack (26) and is threadedly connected to the placement rack (26), and the guide rod (25) passes through the placement rack (26) and is slidably connected to the placement rack (26).

4. The vacuum drying oven according to claim 3, characterized in that: The racks (20) are fixedly connected to the side walls of the vacuum chamber (12) in pairs and symmetrically. The racks (20) pass through the slider (21), and the slider (21) is slidably connected relative to the racks (20).

5. The vacuum drying oven according to claim 4, characterized in that: The mounting frames (22) are provided in plurality and are respectively fixedly connected to the side walls of each of the sliders (21), and the mounting frames (22) are symmetrically positioned and arranged relative to each other.

6. The vacuum drying oven according to claim 5, characterized in that: The two ends of the placement rack (26) are respectively slidably connected to the mounting racks (22) on both sides.

7. The vacuum drying oven according to claim 6, characterized in that: The guide rods (25) are provided in plurality and are fixedly connected to the mounting frame (22) in pairs and symmetrically. The guide rods (25) on both sides respectively pass through the two ends of the placement frame (26) and are in sliding contact with the placement frame (26).

8. The vacuum drying oven according to claim 1, wherein: The bottom bracket (28) is a U-shaped plate, and the U-shaped ends of the bottom bracket (28) are respectively fixedly connected to the bottom wall of the placement rack (26).

9. The vacuum drying oven according to claim 8, characterized in that: A cavity is provided on the sealing door (13), and a tempered glass (14) is installed on the cavity. The side wall of the tempered glass (14) is in sealing contact with the side wall of the cavity. A sealing ring (15) is installed on the housing (11) at the front side of the vacuum chamber (12).

10. The vacuum drying oven according to claim 3, characterized in that: The vacuum tube (17) passes through the side wall of the housing (11) and is in communication with the vacuum chamber (12). An electromagnetic vacuum valve is installed in the vacuum tube (17), and the valve switch (19) is electrically connected to the electromagnetic vacuum valve.

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