Double-box-body drying oven for laboratory

Abstract

The utility model discloses a double-box drying oven for a laboratory. The double-box drying oven comprises an oven body, an upper tray, a lower tray, a sliding rail, a sliding block, a vertical rod, a fixing block, a threaded rod, a threaded block, an upper connecting rod and a lower connecting rod. An upper tray and a lower tray are arranged in the box body in a sliding mode, gaps used for containing objects are reserved between the upper tray and the inner top wall of the box body and between the lower tray and the upper tray, a plurality of sliding rails are arranged on the two side walls of the box body, and the sliding rails are located at the two ends of the lower portion of the upper tray and the two ends of the lower portion of the lower tray respectively. Sliding blocks are arranged on the sliding rails in a sliding mode, vertical rods are arranged above the sliding blocks, the upper ends of the vertical rods are connected with the lower end of the upper tray and the lower end of the lower tray correspondingly, fixing blocks are arranged on the two sides of the front end of the box body, and threaded rods are rotationally arranged between the fixing blocks and the inner wall of the rear end of the box body through bearings correspondingly; according to the utility model, the condition that arms of workers are scalded when the workers take out or put in articles can be avoided.

Description

Technical Field

[0001] This utility model relates to the technical field of laboratory ovens, and in particular to the technical field of a double-chamber laboratory oven. Background Technology

[0002] Laboratory ovens are commonly used experimental devices in laboratories. They mainly consist of temperature control devices, heating devices, a chamber, and trays. Laboratory ovens are primarily used to dry various washed experimental instruments or some experimental products.

[0003] Most ovens currently used in laboratories consist of only one chamber. Ovens with only one chamber have problems such as small volume and low drying efficiency, which greatly affect work efficiency.

[0004] To address the problems mentioned above, for example, application number CN201721095827.0 discloses a double-chamber oven for experiments, including a dedicated chamber for large-capacity bottles. The dedicated chamber has a bottle rack at its center, a fan impeller outlet on its inner wall, a noise-reducing door on its front, a non-slip handle on its surface, and an airflow regulating exhaust port on its upper surface. This double-chamber oven adopts a double-chamber structure, which can meet the needs of drying a large number of containers at once during scientific research. The left side of the oven has three bottle racks, while the right side has only two, allowing for categorized drying of bottles. Taller bottles are placed in the right chamber, and shorter bottles in the left chamber, thus maximizing the use of oven space. The oven has fan impeller outlets on three sides of its inner wall, ensuring even and circulating airflow for drying the bottles inside.

[0005] However, the ventilation openings of the ovens in the aforementioned patents do not have a device for filtering the gases inside the oven, which may produce some toxic and harmful gases when drying experimental products; at the same time, the dust accumulated in the ventilation openings over a long period of use cannot be cleaned, posing a potential threat to environmental hygiene and the health of experimental personnel.

[0006] To address the problems mentioned above, for example, application number CN201920767627.8 discloses a laboratory double-chamber oven, including a chamber and an insulated door. A temperature controller is installed inside the chamber. The chamber is divided into an upper chamber and a lower chamber by an insulated baffle. Each of the upper and lower chambers contains one or more trays. A motor is located on the top of the outer shell of the chamber. The motor's output shaft extends into the chamber and is connected to one end of a central shaft via a coupling. The other end of the central shaft passes through the insulated baffle and is connected to a bearing installed at the bottom of the lower chamber. One or more trays are respectively mounted on the central shaft. The ventilation pipes on the back of the upper and lower chamber shells of this invention are connected to an external exhaust pipe via a straight threaded sleeve. An activated carbon filter layer is placed inside the exhaust pipe to remove toxic and harmful gases from inside the oven. Simultaneously, the ventilation pipes can be removed for easy cleaning of dust accumulated over long-term use, avoiding environmental pollution and harm to the health of operators.

[0007] However, the aforementioned patents still have the following drawbacks:

[0008] The aforementioned device requires workers to put items into or take them out of the oven. This is very inconvenient in mass production, affecting work efficiency. Furthermore, workers are prone to burns from the residual heat inside the oven when they put their arms into it, affecting work safety. Summary of the Invention

[0009] The purpose of this invention is to solve the problems in the prior art and to propose a double-chamber drying oven for laboratory use, which can prevent workers from getting their arms burned when taking out or putting in items.

[0010] To achieve the above objectives, this utility model proposes a laboratory double-chamber drying oven, comprising a chamber body, an upper tray, a lower tray, slide rails, a slider, a vertical rod, a fixing block, a threaded rod, a threaded block, an upper connecting rod, and a lower connecting rod. The upper and lower trays are slidably mounted inside the chamber body. Gaps for placing items are provided between the upper tray and the top wall of the chamber body, and between the lower tray and the upper tray. Several slide rails are provided on both side walls of the chamber body, located at the lower ends of the upper tray and the lower ends of the lower tray, respectively. Slide rails are mounted on the slide rails. The container is equipped with a slider, and each slider has a vertical rod above it. The upper end of the vertical rod is connected to the lower end of the upper tray and the lower end of the lower tray, respectively. The front sides of the container body are equipped with fixing blocks. The fixing blocks and the rear inner wall of the container body are connected by a threaded rod through a bearing. The outer wall of the threaded rod is threaded with a threaded block. The upper end of the threaded block is vertically equipped with an upper connecting rod, and the lower end of the threaded block is vertically equipped with a lower connecting rod. The upper part of the upper connecting rod is connected to the bottom of the slider below the upper tray, and the lower part of the lower connecting rod is connected to the upper edge of the lower tray.

[0011] Preferably, the front surface of the box body is hinged with a box door, the box door is provided with a transparent observation window, and the box door is a high temperature resistant and heat-insulated box door.

[0012] Preferably, one end of the threaded rod passes through the outside of the box body and is fixedly connected to a rotating handwheel.

[0013] Preferably, a fan is provided on the top of the box body, and the air outlet of the fan is connected to an air transmission duct. The air transmission duct is connected to the interior of the box body, and the air outlet of the air transmission duct is located above the lower tray.

[0014] Preferably, the air duct is provided with a diversion duct, which is connected to the interior of the box body, and the air outlet of the diversion duct is located above the upper tray.

[0015] Preferably, the inner wall of the box body has two inner grooves, and an electric heating tube is embedded in each of the two inner grooves.

[0016] The beneficial effects of this utility model are:

[0017] This utility model, through the coordinated operation of an upper tray, a lower tray, a slide rail, a slider, a vertical rod, a fixing block, a threaded rod, a threaded block, an upper connecting rod, and a lower connecting rod, facilitates the loading and unloading of items. When an operator needs to place items to be dried, they first rotate two handwheels, which in turn rotate the threaded rod. The rotation of the threaded rod then moves the threaded block, which in turn moves the upper and lower connecting rods synchronously. Since the upper connecting rod is connected to the slider below the upper tray, and the lower connecting rod is connected to the upper edge of the lower tray, the synchronous movement of the upper and lower connecting rods simultaneously moves the upper tray. The upper and lower trays move synchronously, causing the slider to move along the slide rail. This allows the upper and lower trays to move outwards simultaneously, placing the items to be dried onto them. Then, by rotating the handwheel in the opposite direction, the upper and lower trays are moved into the main body of the drying chamber. This allows the items to be dried to be processed in the two chambers of the upper and lower trays, improving processing efficiency and facilitating the handling of items. During handling, the operator's arms do not need to be inserted into the main body of the chamber, avoiding burns to the operator's hands and improving the safety of the device. Attached Figure Description

[0018] Figure 1 This is a front view of a double-chamber drying oven for laboratory use according to this utility model;

[0019] Figure 2 This is a rear view of a double-chamber drying oven for laboratory use according to this utility model;

[0020] Figure 3 This is a cross-sectional view of the main body of a laboratory double-chamber drying oven according to this utility model;

[0021] Figure 4 This is an enlarged schematic diagram of point A of a laboratory double-chamber drying oven according to this utility model;

[0022] In the diagram: 1-Box body, 2-Upper tray, 3-Lower tray, 4-Slide rail, 5-Slider, 6-Vertical rod, 7-Fixing block, 8-Threaded rod, 9-Threaded block, 10-Upper connecting rod, 11-Lower connecting rod, 12-Box door, 13-Transparent observation window, 14-Rotating handwheel, 15-Fan, 16-Air transmission duct, 17-Diversion duct, 18-Inner groove, 19-Electric heating element. Detailed Implementation

[0023] See Figures 1 to 4 This utility model discloses a double-box drying oven for laboratory use, comprising a box body 1, an upper tray 2, a lower tray 3, slide rails 4, sliders 5, vertical rods 6, fixing blocks 7, threaded rods 8, threaded blocks 9, an upper connecting rod 10, and a lower connecting rod 11. The upper tray 2 and lower tray 3 are slidably mounted inside the box body 1. Gaps for placing items are provided between the upper tray 2 and the inner top wall of the box body 1, and between the lower tray 3 and the upper tray 2. Several slide rails 4 are provided on both side walls of the box body 1, located at the lower ends of the upper tray 2 and the lower ends of the lower tray 3, respectively. Slider blocks are slidably mounted on each slide rail 4. 5. Each slider 5 is provided with a vertical rod 6 above it. The upper end of the vertical rod 6 is connected to the lower end of the upper tray 2 and the lower end of the lower tray 3 respectively. The front sides of the box body 1 are provided with fixing blocks 7. The fixing blocks 7 and the rear inner wall of the box body 1 are connected by a threaded rod 8 through a bearing. The outer wall of the threaded rod 8 is threaded with a threaded block 9. The upper end of the threaded block 9 is vertically provided with an upper connecting rod 10. The lower end of the threaded block 9 is vertically provided with a lower connecting rod 11. The upper part of the upper connecting rod 10 is connected to the bottom of the slider 5 below the upper tray 2. The lower part of the lower connecting rod 11 is connected to the upper edge of the lower tray 3.

[0024] The forward and reverse rotation of the threaded rod 8 drives the threaded block 9 to move back and forth, thereby driving the upper tray 2 and the lower tray 3 to move back and forth, which facilitates the picking and placing of items. During the picking and placing process, the staff does not need to put their arms into the box body 1, thus avoiding the possibility of burns to the staff's hands when picking and placing items.

[0025] See Figure 1 The front surface of the box body 1 is hinged with a box door 12, and the box door 12 is provided with a transparent observation window 13. The box door 12 is a high temperature resistant and heat-insulated box door. The transparent observation window 13 facilitates the observation of the inside of the box body 1. The high temperature resistant and heat-insulated box door 12 can further improve the safety of the device.

[0026] See Figure 2One end of the threaded rod 8 passes through the outside of the box body 1 and is fixedly connected to a rotating handwheel 14. By rotating the rotating handwheel 14 in both directions, the threaded rod 8 is driven to rotate in both directions. At the same time, several heat dissipation holes (not shown in the figure) are opened on the rear surface of the box body 1 to prevent water vapor generated in the box body 1 during the drying process from being unable to be discharged.

[0027] See Figure 1 The top of the box body 1 is equipped with a fan 15. The air outlet of the fan 15 is connected to an air transmission duct 16. The air transmission duct 16 is connected to the interior of the box body 1, and the air outlet of the air transmission duct 16 is located above the lower tray 3. In use, the fan 15 sends air into the box body 1 through the air transmission duct 16. The air is heated by the electric heating tube 19 and guided to the lower tray 3, thereby drying the items on the lower tray 3. The fan 15 is electrically connected to external electrical components, which is existing technology and will not be described in detail here.

[0028] See Figure 1 The air transmission duct 16 is provided with a diversion duct 17, which is connected to the interior of the box body 1. The air outlet of the diversion duct 17 is located above the upper tray 2. The diversion duct 17 can send air into the upper tray 2 to dry the items on the upper tray 2.

[0029] See Figure 3 The inner sidewall of the box body 1 has two inner grooves 18, and each inner groove 18 is embedded with an electric heating tube 19. The two electric heating tubes 19 are located above the upper tray 2 and the lower tray 3, respectively. It should be noted that the box body 1 in this application is also equipped with a temperature sensor (not shown in the figure) to monitor the real-time temperature inside the box body 1. The electric heating tubes 19 and the temperature sensor are electrically connected to external electrical components, which is the prior art and will not be described in detail here.

[0030] The working process of this utility model:

[0031] In the operation of this laboratory double-chamber drying oven, when the operator needs to place items to be dried inside, firstly, two rotating handwheels 14 are turned, which in turn drives the threaded rod 8 to rotate. The rotation of the threaded rod 8 then drives the threaded block 9 to move, which in turn drives the upper connecting rod 10 and the lower connecting rod 11 to move synchronously. Since the upper connecting rod 10 is connected to the slider 5 below the upper tray 2, and the lower connecting rod 11 is connected to the upper edge of the lower tray 3, when the upper connecting rod 10 and the lower connecting rod 11 move synchronously, they simultaneously drive the upper tray 2 and the lower tray 3 to move synchronously, thereby driving the slider... Block 5 moves on slide rail 4, causing upper tray 2 and lower tray 3 to move outward synchronously, and then the items to be dried are placed on upper tray 2 and lower tray 3. Then, the handwheel 14 is rotated in the opposite direction, which drives the upper tray and lower tray 3 into the box body 1, so that the items to be dried can be processed in the two chambers of upper tray 2 and lower tray 3. This improves processing efficiency and facilitates the handling of items. During the handling process, the operator's arm does not need to be inserted into the box body 1, avoiding the risk of burns to the operator's hands when handling items, and improving the safety of the device.

[0032] The control method of this utility model is to control the device by manually starting and stopping the switch. The wiring diagram of the power element and the supply of power are common knowledge in the field. Since this utility model is mainly used to protect mechanical devices, the control method and wiring layout will not be explained in detail.

[0033] The above embodiments are illustrative of the present invention and are not intended to limit the present invention. Any simple modifications to the present invention are within the protection scope of the present invention.

Claims

1. A laboratory double-chamber drying oven, characterized in that: The box includes a main body (1), an upper tray (2), a lower tray (3), slide rails (4), sliders (5), vertical rods (6), fixing blocks (7), threaded rods (8), threaded blocks (9), an upper connecting rod (10), and a lower connecting rod (11). The upper tray (2) and lower tray (3) are slidably mounted inside the main body (1). Gaps for placing items are provided between the upper tray (2) and the inner top wall of the main body (1), and between the lower tray (3) and the upper tray (2). Several slide rails (4) are provided on both sides of the main body (1). The slide rails (4) are located at the lower ends of the upper tray (2) and the lower ends of the lower tray (3), respectively. Sliders (5) are slidably mounted on each slide rail (4). Each block (5) is provided with a vertical rod (6) above it. The upper end of the vertical rod (6) is connected to the lower end of the upper tray (2) and the lower end of the lower tray (3) respectively. The front sides of the box body (1) are provided with fixing blocks (7). The fixing blocks (7) and the inner wall of the rear end of the box body (1) are connected by a threaded rod (8) through a bearing. The outer wall of the threaded rod (8) is threaded with a threaded block (9). The upper end of the threaded block (9) is vertically provided with an upper connecting rod (10). The lower end of the threaded block (9) is vertically provided with a lower connecting rod (11). The upper part of the upper connecting rod (10) is connected to the bottom of the slider (5) below the upper tray (2). The lower part of the lower connecting rod (11) is connected to the upper edge of the lower tray (3).

2. The laboratory double-chamber drying oven as described in claim 1, characterized in that: The front surface of the box body (1) is hinged with a box door (12), and the box door (12) is provided with a transparent observation window (13), and the box door (12) is a high temperature resistant and heat-insulating box door.

3. A laboratory double-chamber drying oven as described in claim 1, characterized in that: One end of the threaded rod (8) passes through the outside of the box body (1) and is fixedly connected to a rotating handwheel (14).

4. A laboratory double-chamber drying oven as described in claim 1, characterized in that: The top of the box body (1) is provided with a fan (15), the air outlet of the fan (15) is connected to an air transmission pipe (16), the air transmission pipe (16) is connected to the interior of the box body (1), and the air outlet of the air transmission pipe (16) is located above the lower tray (3).

5. A laboratory double-chamber drying oven as described in claim 4, characterized in that: The air transmission duct (16) is provided with a diversion duct (17), which is connected to the interior of the box body (1), and the air outlet of the diversion duct (17) is located above the upper tray (2).

6. A laboratory double-chamber drying oven as described in claim 1, characterized in that: The inner wall of the box body (1) has two inner grooves (18), and electric heating tubes (19) are embedded in both inner grooves (18).

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