Portable vacuum drying tank

Abstract

The utility model discloses a portable vacuum drying tank, which belongs to the technical field of vacuum culture devices, and comprises a lower tank body, a supporting platform is arranged on the lower tank body, a sample fixing table is arranged on the supporting platform, a sealing piece is arranged on the supporting platform and positioned around the sample fixing table, and the sealing piece is arranged on the lower tank body. A vacuum cover is also arranged outside the sample fixing table, and the vacuum cover is in sealing fit with the sealing element; the lower tank body is further provided with a vacuumizing assembly communicated with the interior of the vacuum cover. According to the scheme, the lower tank body is used for bearing the sample, the sample on the sample fixing table is sealed and packaged through the vacuum cover, then the interior of the vacuum cover is vacuumized through the vacuumizing assembly, and the vacuum cover and the vacuumizing assembly are both arranged on the lower tank body, so that the overall size of the drying tank is effectively reduced; and meanwhile, the vacuum effect in the vacuum cover is ensured through the sealing piece.

Description

TECHNICAL FIELD

[0001] The utility model relates to a drying tank more specifically, it relates to a portable vacuum drying tank. BACKGROUND

[0002] In the laboratory, if some oxygen-sensitive, easy to oxidize deteriorated samples are dried in the air, it is easy to cause the sample to be contaminated, and affect the subsequent use effect. The vacuum drying oven comes into being, which creates a low-pressure vacuum environment by removing the air inside the drying oven. This not only reduces the boiling point of water and speeds up the drying speed, but also can well avoid the contact of the sample with oxygen. But the existing vacuum drying oven is mostly large in size and heavy in weight, and is usually fixed in the laboratory, factory and other places for use, which is difficult to meet the needs of sample drying in some mobile operation scenes. Some small portable drying equipment simplifies the function or reduces the performance in order to reduce the size.

[0003] For example: Chinese patent publication No. CN206683318U, publication date November 28, 2017, the name of the utility model is a portable vacuum drying oven, including box, box cover, handle, the box and the box cover are hinged, the handle is fixedly installed on the front of the box and the box cover, the front and side of the box are provided with observation window, the upper surface of the box cover is provided with current adjusting knob, exhaust port and air inlet valve, the inside top surface of the box cover is provided with micro vacuum pump, battery and electric heater, the lower surface of the micro vacuum pump is provided with suction port, the inner wall of the box is also provided with a storage rack. The vacuum drying oven adopts a folding design, and the weight and volume of the drying oven are significantly reduced by using a micro vacuum pump, which is practical, but this also makes it difficult to maintain the ideal level of vacuum degree. UTILITY MODEL CONTENTS

[0004] The utility model overcomes the problem that the existing small portable vacuum drying tank has poor sealing effect and is difficult to maintain ideal vacuum degree, provides a kind of portable vacuum drying tank, and the sealing effect inside the drying tank can be guaranteed while reducing the volume of the vacuum drying tank, so that the sample is dried in the ideal vacuum environment.

[0005] In order to solve the above technical problems, the utility model discloses the following technical scheme: A portable vacuum drying tank, including lower jar body, be provided with support platform on the lower jar body, be provided with sample fixed platform on the support platform, be provided with sealing element on the support platform and be located around sample fixed platform, sample fixed platform outside still be equipped with vacuum cover, vacuum cover with sealing cooperation with sealing element, lower jar body still be provided with with vacuum cover internal communication's vacuumizing component, in the scheme, lower jar body is used for carrying sample, and through vacuum cover, the sample on sample fixed platform is sealed and packaged, then through vacuumizing component, the vacuum cover inside is vacuumized, and vacuum cover and vacuumizing component are all arranged on lower jar body, effectively reduce the overall volume of drying tank, and the vacuum effect in vacuum cover is guaranteed through sealing element.

[0006] As preferred, the support platform is provided with a mounting groove, the sealing element is arranged in the mounting groove, the vacuum cover is provided with a sealing end matched with the sealing element, and the radial dimension of the sealing end is greater than the radial dimension of the vacuum cover. The mounting groove on the support platform is used for mounting the sealing element, and the sealing end on the vacuum cover is a protruding peripheral annular plate structure of the vacuum cover, which can effectively increase the fitting area with the sealing element and ensure the sealing effect.

[0007] As preferred, the vacuumizing component includes a vacuumizing interface arranged outside the lower jar body, and the vacuumizing interface is communicated with the inside of the vacuum cover through an air pipe. The vacuumizing interface can be connected with a vacuum pump, the air pipe is arranged inside the lower jar body, the vacuumizing interface can be connected with the vacuum pump through the vacuum pump, the inside of the vacuum cover can be vacuumized, and the portability of the drying tank is embodied.

[0008] As preferred, the support platform is provided with a vacuum valve arranged on the air pipe between the vacuum cover and the vacuumizing interface. The vacuum valve is a switch on the air pipe, which can be opened and closed, when the vacuumizing operation is needed, the vacuum valve is opened, the air pipe is connected with the inside of the vacuum cover and the vacuum pump, and the vacuumizing operation can be performed; when the vacuumizing operation is finished, the vacuum valve is closed, at this time, the air pipe is isolated from the outside, and the vacuum environment in the vacuum cover is maintained.

[0009] As preferred, the lower jar body is further provided with a heat dissipation hole. The heat dissipation hole can dissipate heat for the internal structure of the lower jar body, and prevent the lower jar body from being overheated.

[0010] As preferred, the lower jar body is further provided with a vacuum gauge and a temperature display device. The vacuum gauge on the lower jar body can display the air pressure in the vacuum cover, and the temperature display device can display the overall temperature in the lower jar body or the vacuum cover.

[0011] As preferred, the sealing end of the vacuum cover and the support platform are connected through a flange. The sealing end of the vacuum cover and the support platform are connected through a flange, which can ensure that the vacuum cover and the support platform are uniformly attached, and the uniformity of the sealing is ensured.

[0012] As preferred, a temperature measuring assembly is arranged in the vacuum cover and on the support platform. The temperature measuring assembly can be a temperature measuring probe, which can effectively measure the temperature in the vacuum cover and display the temperature through a temperature display device.

[0013] As preferred, the vacuum cover is made of transparent glass. The vacuum cover is made of transparent glass, which is beneficial for observing the drying condition in the vacuum cover.

[0014] As preferred, the upper tank body is connected with the lower tank body through a buckle lock. The upper tank body can be used to cover the vacuum cover and other structures on the lower tank body, which can protect the structures on the lower tank body. The upper tank body and the lower tank body are connected through a buckle lock, which is convenient for disassembly and assembly.

[0015] Compared with the prior art, the present application has the following advantages: (1) the tank body, the vacuum pump and the infrared heating lamp are designed in a split type, which can ensure the vacuum degree and the drying effect, and the drying tank has a small overall size and is convenient to carry; (2) the top opening mode is adopted, which is convenient for taking and placing samples, and a plurality of samples can be dried at one time, thereby increasing the practicability of the drying tank; (3) the temperature display function is provided, and the vacuum cover is made of transparent glass, which is convenient for understanding the actual condition of the samples in the drying tank. BRIEF DESCRIPTION OF DRAWINGS

[0016] Fig. 1 is a perspective view of the present application.

[0017] Fig. 2 is an explosion schematic view of the upper tank body and the lower tank body of the present application.

[0018] Fig. 3 is an explosion schematic view of the upper tank body, the vacuum cover and the lower tank body of the present application.

[0019] In the drawing: 1. lower tank body, 2. support platform, 3. sample fixing table, 4. sealing element, 5. vacuum cover, 6. mounting groove, 7. sealing end, 8. vacuumizing interface, 9. vacuum valve, 10. heat dissipation hole, 11. vacuum gauge, 12. temperature display device, 13. flange, 14. temperature measuring assembly, 15. upper tank body, 16. buckle lock, 17. handle, 18. flange connecting column, 19. through hole, 20. temperature button. DETAILED DESCRIPTION

[0020] The technical scheme of the present application will be further described in detail below with specific embodiments and in combination with the drawings.

[0021] Example 1: As Figs. 1-3 The drying chamber shown includes a lower chamber 1, which is a hollow cube structure. A support platform 2 is located on the upper part of the lower chamber 1 and is fixed to the upper part of the lower chamber 1 by fasteners. A circular sample fixing stage 3 is located in the middle of the support platform 2 and is fixedly connected to the support platform 2. A circular mounting groove 6 is also provided on the outer circumference of the sample fixing stage 3, and a sealing element 4, specifically a sealing ring, is installed in the mounting groove 6. A vacuum cover 5 is also arranged on the support platform 2. The vacuum cover 5 is cylindrical and is sealed tightly with the sealing element 4 on the support platform 2, thus isolating the interior of the vacuum cover 5 from the outside. The sealing element 4 and the vacuum cover 5 can seal the sample fixing stage 3 to the upper surface of the support platform 2. Furthermore, by arranging the vacuum cover 5, sample fixing stage 3, and support platform 2 all on the lower chamber 1, the overall volume of the drying chamber can be reduced, improving the portability of the drying chamber while ensuring its sealing performance.

[0022] Specifically, the mounting groove 6 on the support platform 2 is U-shaped, allowing the sealing element 4 to fit perfectly within it. The vacuum cover 5 has an open end and a closed end. A sealing end 7 with a large radial dimension is located at the open end of the vacuum cover 5; that is, the sealing end 7 is an annular wing structure on the vacuum cover 5, the size of which is just large enough to cover the circular sealing ring. After the sealing ring is placed in the mounting groove 6, the sealing end 7 of the vacuum cover 5 is then attached to the sealing ring, thus forming a sealed space within the vacuum cover 5. It should be noted that after the sealing ring is placed in the mounting groove 6, it needs to protrude slightly from the groove 6. This ensures that the sealing end 7 and the sealing ring are in full contact when the sealing end 7 of the vacuum cover 5 is placed on the mounting groove 6. Furthermore, the sealing ring has elasticity; after the vacuum cover 5 is pressed onto the sealing ring, the deformation of the sealing element 4 further fills the mounting groove 6, improving the sealing performance of the sealing ring within the mounting groove 6 and increasing the contact area between the sealing ring and the sealing end 7.

[0023] The vacuum hood 5 and the support platform 2 are connected by a flange 13. Specifically, a flange connecting post 18 is provided on the support platform 2 and located on the periphery of the sealing element 4. A through hole 19 adapted to the flange connecting post 18 is provided on the sealing end 7 of the vacuum hood 5. The through hole 19 on the vacuum hood 5 is inserted into the flange connecting post 18, and then the flange is connected to the sealing end 8 of the vacuum hood 6. The flange 13 is fixed by fasteners such as nuts. At this time, the sealing end 7 of the vacuum hood 5 is pressed on the sealing ring, and the flange 13 is pressed on the sealing end 7 of the vacuum hood 5.

[0024] Of course, the sealing end 7 can also be directly made into the structure of the flange plate 13, and the sealing end 7 is integrally formed with the vacuum cover 5, and the sealing end 7 is connected with the flange connecting column 18 on the support platform 2 through the through hole 19, but the position of the through hole 19 needs to avoid the position of the sealing element 4 to ensure that the sealing end 7 can be connected with the support platform 2. At this time, the sealing end 7 is pressed on the sealing ring in the mounting groove 6, and the sealing end 7 is fixed on the support platform 2 through the nut and other fasteners.

[0025] The lower tank body 1 is also provided with a vacuum pumping assembly, which includes a vacuum pumping interface 8, a vacuum valve 9, and an air pipe (not shown in the figure). Specifically, the vacuum pumping interface 8 is arranged on the outer surface of the lower tank body 1, the air pipe is arranged inside the lower tank body 1, and the vacuum valve 9 is arranged on the upper surface of the support platform 2. The air pipe connects the vacuum pumping interface 8 and the bottom of the support platform 2, and a connecting hole is arranged at the bottom of the support platform 2 for connecting the end of the air pipe, so that the air pipe can communicate the inside of the vacuum cover 5 with the vacuum pumping interface 8. The vacuum valve 9 is arranged on the air pipe and is used to open and close the air path on the air pipe. When the vacuum valve 9 is opened, the air pipe can communicate the inside of the vacuum cover 5 with the vacuum pumping interface 8. When the vacuum valve 9 is closed, the inside of the vacuum cover 5 is isolated to form an independent sealed space.

[0026] The vacuum pumping interface 8 is connected with a vacuum pump (not shown in the figure), and the inside of the vacuum cover 5 can be pumped by the vacuum pump. Specifically, when the vacuum pumping operation is needed, the vacuum valve 9 is opened, so that the inside of the vacuum cover 5 is connected with the vacuum pump, and the vacuum pump can pump the inside of the vacuum cover 5. When the vacuum pumping operation is completed, the vacuum valve 9 is closed, and the inside of the vacuum cover 5 remains in a vacuum state, and then the vacuum pump can be removed.

[0027] It should be noted that the vacuum cover 5 is made of transparent glass material, specifically colorless glass, which can ensure the vacuum environment of the sample and facilitate the observation of the sample state.

[0028] Example 2: as Figs. 1-3The shown drying tank includes a lower tank body and an upper tank body, the lower tank body 1 is a hollow structure of a cube as a whole, a support platform 2 is arranged at the upper part of the lower tank body 1, the support platform 2 is fixed above the lower tank body 1 through fasteners, a circular sample fixing table 3 is arranged at the middle part of the support platform 2, the sample fixing table 3 is fixedly connected with the support platform 2, a circular mounting groove 6 is further arranged at the outer side of the circumference of the sample fixing table 3, a sealing element 4 is arranged in the mounting groove 6, specifically, the sealing element 4 can be a sealing ring. A vacuum cover 5 is further arranged on the support platform 2, the vacuum cover 5 is in a cylindrical shape as a whole, the vacuum cover 5 is sealingly attached with the sealing element 4 on the support platform 2, so that the inside of the vacuum cover 5 is isolated from the outside. The upper tank body 15 is a hollow structure of a cube with a closed top and an open bottom, the upper tank body 15 and the lower tank body 1 are connected through a snap lock 16, and the inside of the upper tank body 15 can accommodate and cover the structures such as the support platform 2 and the vacuum cover 5 above the lower tank body 1, thereby playing a role of sealing and protecting. In order to facilitate carrying of the drying tank, a handle 17 is further arranged on the upper tank body 15.

[0029] The sealing element 4 and the vacuum cover 5 can seal the sample fixing table 3 on the upper surface of the support platform 2. And the vacuum cover 5, the sample fixing table 3 and the support platform 2 are all arranged on the lower tank body 1, so that the overall volume of the drying tank can be reduced, while the sealing performance of the drying tank is ensured, the portability of the drying tank is also improved.

[0030] Specifically, the mounting groove 6 on the support platform 2 is U-shaped, the sealing element 4 can be embedded in the mounting groove, and one end of the vacuum cover 5 is an open end and the other end is a closed end. A sealing end 7 with a larger radial dimension is arranged at the open end of the vacuum cover 5, that is, the sealing end 7 is an annular wing plate structure on the vacuum cover 5, and the size of the annular wing plate is just enough to cover the circular sealing ring. After the sealing ring is arranged in the mounting groove 6, the sealing end 7 of the vacuum cover 5 is attached to the sealing ring, so that a sealed space is formed in the vacuum cover 5. It should be noted that when the sealing ring is arranged in the mounting groove 6, the sealing ring needs to slightly protrude from the mounting groove 6, so that when the sealing end 7 of the vacuum cover 5 is arranged in the mounting groove 6, the sealing end 7 and the sealing ring can be in full contact. And the sealing ring has an elastic effect, after the vacuum cover 5 is pressed on the sealing ring, the deformation of the sealing element 4 can further fill the mounting groove 6, improve the sealing performance of the sealing ring in the mounting groove 6, and improve the contact area between the sealing ring and the sealing end 7.

[0031] The vacuum cover 5 and the support platform 2 are connected through the flange 13. Specifically, the flange connecting column 18 is arranged on the support platform 2 and located at the periphery of the sealing element 4. The through hole 19 adapted to the flange connecting column 18 is arranged on the sealing end 7 of the vacuum cover 5. The through hole 19 on the vacuum cover 5 is arranged on the flange connecting column 18, and then the flange is connected on the sealing end 8 of the vacuum cover 6. The flange 13 is fixed by using nuts and other fasteners. At this time, the sealing end 7 of the vacuum cover 5 is arranged on the sealing ring, and the flange 13 is arranged on the sealing end 7 of the vacuum cover 5.

[0032] Of course, the sealing end 7 can also be directly made into the structure of the flange 13. The sealing end 7 is integrally formed with the vacuum cover 5. The through hole 19 on the sealing end 7 is connected with the flange connecting column 18 on the support platform 2. However, the position of the through hole 19 needs to avoid the position of the sealing element 4 to ensure that the sealing end 7 can be connected with the support platform 2. At this time, the sealing end 7 is arranged on the sealing ring in the mounting groove 6, and the sealing end 7 is fixed on the support platform 2 by using nuts and other fasteners.

[0033] The vacuum extraction assembly is also arranged on the lower tank body 1. The vacuum extraction assembly includes a vacuum extraction interface 8, a vacuum valve 9, and an air pipe (not shown in the figure). Specifically, the vacuum extraction interface 8 is arranged on the outer surface of the lower tank body 1. The air pipe is arranged inside the lower tank body 1. The vacuum valve 9 is arranged on the upper surface of the support platform 2. The air pipe connects the vacuum extraction interface 8 and the bottom of the support platform 2. A connecting hole is arranged on the bottom of the support platform 2 for connecting the end of the air pipe. In this way, the air pipe can communicate the inside of the vacuum cover 5 with the vacuum extraction interface 8. The vacuum valve 9 is arranged on the air pipe and is used to open and close the air path on the air pipe. When the vacuum valve 9 is opened, the air pipe can communicate the inside of the vacuum cover 5 with the vacuum extraction interface 8. When the vacuum valve 9 is closed, the inside of the vacuum cover 5 is isolated to form an independent sealed space.

[0034] The vacuum extraction interface 8 is connected with a vacuum pump (not shown in the figure). The inside of the vacuum cover 5 can be vacuumized by the vacuum pump. Specifically, when the vacuumization operation is needed, the vacuum valve 9 is opened. In this way, the inside of the vacuum cover 5 is communicated with the vacuum pump. The vacuum pump can vacuumize the inside of the vacuum cover 5. When the vacuumization operation is completed, the vacuum valve 9 is closed. At this time, the inside of the vacuum cover 5 remains in a vacuum state. Then, the vacuum pump can be removed.

[0035] It should be further pointed out that the vacuum cover 5 is made of transparent glass material, specifically colorless glass, which not only ensures the vacuum environment of the sample but also facilitates the observation of the sample state.

[0036] A heat dissipation hole 10 is arranged on the outside of the lower tank body 1, and the heat dissipation hole 10 is arranged on the side of the lower tank body 1. In order to improve the heat dissipation effect, the heat dissipation hole 10 can be arranged on two sides. The heat dissipation hole 10 is a plurality of parallel strip-shaped holes, which can dissipate heat for the internal structure of the lower tank body 1, and prevent the lower tank body 1 from overheating. In addition, a vacuum gauge 11 is arranged on the outside of the lower tank body 1. The vacuum gauge 11 can detect the vacuum degree in the vacuum cover 5, so that the user can intuitively understand the pressure condition in the vacuum cover 5.

[0037] A temperature measuring assembly 14 is arranged on the support platform 2 and located in the vacuum cover 5. Specifically, the temperature measuring assembly 14 is a temperature measuring probe structure, which can be conveniently arranged in the vacuum cover 5. A temperature display device 12 is arranged on the outside of the lower tank body 1. The temperature display device 12 can display the temperature detected by the temperature measuring assembly 14, so that the user can intuitively understand the temperature condition in the vacuum cover 5. Meanwhile, a temperature button 20 is arranged on the outside of the lower tank body 1. The temperature button 20 can turn on and off the temperature display device 12.

[0038] In addition, an infrared heating table lamp is arranged on the outside of the lower tank body 1. The infrared heating table lamp irradiates the sample fixing table 3 to heat and dry the sample.

[0039] The working principle of the present application is as follows: when the portable vacuum drying tank is used, first, the upper tank body 15 is opened, then the vacuum cover 5 is opened, the sample to be dried is placed on the sample fixing table 3, the vacuum cover 5 is covered, the flange plate 13 is sleeved, the four flange plate fixing screws are manually tightened, then the vacuum interface 8 is connected to the external vacuum pump through the air pipe, the vacuum valve 9 is opened, the vacuum pump start switch is opened, the vacuum is started, when the vacuum gauge 11 pointer reaches-0.1MPa, the vacuum valve 9 is closed, the external vacuum pump is closed, the air pipe and the vacuum interface 8 are disconnected, then the temperature button 20 is opened, the external infrared heating lamp is opened and aligned with the sample fixing table 3 to start heating and drying. At this time, the sample temperature can be observed through the temperature display device 12 (temperature display screen). After the sample is dried, the external infrared heating lamp is removed, finally the upper tank body 15 is covered, and the hasp lock 16 is buckled, so that the sample after drying treatment can be carried out.

Claims

1. A portable vacuum drying canister characterized by, The lower jar body is provided with a support platform, the support platform is provided with a sample fixing table, the support platform is provided with a sealing element around the sample fixing table, the sample fixing table is further provided with a vacuum cover outside, and the vacuum cover is in sealing cooperation with the sealing element.

2. The portable vacuum drying canister of claim 1, wherein, The support platform is provided with a mounting groove, the sealing element is arranged in the mounting groove, the vacuum cover is provided with a sealing end in cooperation with the sealing element, and a radial dimension of the sealing end is greater than a radial dimension of the vacuum cover.

3. The portable vacuum drying tank according to claim 2, wherein The vacuum extraction assembly comprises a vacuum extraction interface arranged outside the lower jar body, and the vacuum extraction interface is connected with the inside of the vacuum cover through an air pipe.

4. The portable vacuum drying tank according to claim 3, wherein The support platform is provided with a vacuum valve arranged on the air pipe between the vacuum cover and the vacuum extraction interface.

5. The portable vacuum drying tank according to any one of claims 1 to 4, characterized in that The lower jar body is further provided with heat dissipation holes.

6. A portable vacuum drying canister according to claim 5, wherein The lower jar body is further provided with a vacuum gauge and a temperature display device.

7. The portable vacuum drying tank according to any one of claims 2 to 4, characterized in that The sealing end of the vacuum cover is connected with the support platform through a flange.

8. The portable vacuum drying tank according to claim 6, wherein The vacuum cover is further provided with a temperature measuring assembly inside and on the support platform.

9. The portable vacuum drying tank according to any one of claims 1 to 4, characterized in that The vacuum cover is transparent glass.

10. The portable vacuum drying canister according to any one of claims 1 to 4, characterized in that The upper jar body is connected with the lower jar body through a snap lock.

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