Vacuum dryer

Abstract

The utility model relates to the technical field of dryers, and discloses a vacuum dryer which comprises a dryer tank body and a dryer top cover matched with the dryer tank body, an extension wall is fixedly installed at the end, away from a bottom cover and close to the dryer top cover, of the dryer tank body, and a limiting groove is formed in the end, away from the bottom cover, of the dryer tank body. And a discharge hole is formed in the outer wall, far away from the center line, of the dryer tank body. According to the vacuum dryer, the sealing grooves and the sealing rings are arranged to effectively prevent leakage of sewage or impurities during pollution discharge, it is guaranteed that the vacuum environment in the dryer is not damaged, the sealing performance and reliability are enhanced through the design of one-to-one correspondence and equidistant distribution, even if some sealing rings go wrong, other sealing rings can still maintain a certain sealing effect, and the service life of the dryer is prolonged. The service life of the sealing structure is prolonged due to the good sealing performance, elasticity and corrosion resistance of the rubber sealing ring, a good sealing effect can be achieved in internal and external connection, and the practicability of the sealing structure is improved.

Description

Technical Field

[0001] This utility model relates to the field of dryer technology, specifically a vacuum dryer. Background Technology

[0002] As is well known, the laboratory desiccators commonly used in laboratories are sealed containers with wide-rimmed frosted lids. The lower part of the bottle is narrowed, while the upper part is wide. A shelf is placed at the transition between the wide and narrow parts of the bottle. The sample to be dried is placed on the top of the shelf, and the desiccant, such as color-changing silica gel, is placed on the bottom. The wide edge of the lid is ground flat to fit the base. Vaseline is usually applied to the lid and the opening of the bottle to achieve a good seal.

[0003] Chinese Utility Model Patent Publication No. CN 207831820 U discloses a simple laboratory vacuum dryer. This simple laboratory vacuum dryer features an air outlet on the bottle cap and a suction device on the outlet, enabling vacuum drying of samples. The suction device of this simple laboratory vacuum dryer has a simple structure; simply pressing the push rod repeatedly achieves vacuuming of the dryer, requiring no external power supply and allowing for flexible and convenient use anywhere. However, this simple laboratory vacuum dryer lacks a sealing structure, which can easily disrupt the internal vacuum environment, affecting its normal use. Furthermore, it is not easily adaptable to different connection methods, resulting in significant limitations in its practicality and hindering its widespread adoption. Summary of the Invention

[0004] The technical problem to be solved by this invention is to provide a vacuum dryer that can effectively solve the problems in the prior art.

[0005] The technical solution adopted by this utility model is: a vacuum dryer, including a dryer tank and a dryer top cover adapted to the dryer tank. An extension wall and a limiting groove are fixedly installed at the end of the dryer tank away from the bottom cover and close to the dryer top cover. A discharge port is opened on the outer wall of the dryer tank away from the center line. A meter and a connecting seat are provided at the end of the dryer top cover away from the dryer tank. A sealing component is provided at the discharge port of the dryer tank and on the side of the dryer top cover close to the connecting seat.

[0006] Preferably, a bottom cover is provided at the end of the dryer tank away from the top cover of the dryer, and a positioning block is fixedly installed at the end of the bottom cover away from the dryer tank.

[0007] The above technical solution, by setting up positioning blocks, can make the vacuum dryer more stable when placed, preventing the dryer from being affected by shaking or shifting during operation, thus avoiding damage to the drying effect or equipment. At the same time, it can more accurately determine the position of the dryer, making it easier to use in conjunction with other equipment.

[0008] Preferably, the dryer tank is adapted to the extension wall and the limiting groove, and the top cover of the dryer has a "semi-circular" cross-section.

[0009] With the above technical solution, when installing the dryer top cover, align the dryer top cover with the dryer tank body, so that the edge of the dryer top cover fits with the extension wall, and then move the dryer top cover down along the extension wall until the dryer top cover fits into the limiting groove, thus completing the installation. The fitting design of the extension wall and the limiting groove can ensure that the dryer top cover and the dryer tank body are accurately installed, ensuring the sealing between the two and preventing air from entering during the vacuum drying process and affecting the drying effect.

[0010] Preferably, the sealing assembly includes a connecting pipe, with a drain port at the end of the connecting pipe away from the dryer tank and the dryer top cover, an inlet pipe fixedly installed at the end of the drain port near the dryer tank and the dryer top cover, and an outlet pipe fixedly installed at the end of the drain port away from the dryer tank and the dryer top cover. The connecting pipe, drain port, inlet pipe, and outlet pipe are connected to each other.

[0011] Through the above technical solutions, the design of the sealing components makes it convenient to perform sewage discharge operations during the use of the dryer, and can promptly discharge sewage or impurities inside the dryer to prevent these substances from affecting the drying effect or causing corrosion to the equipment. At the same time, the interconnected design of the connecting pipe, sewage outlet, inlet pipe and outlet pipe ensures the smooth sewage discharge process.

[0012] Preferably, a sealing groove is formed on the inner wall of the outlet pipe, and a sealing ring is fixedly installed on the inner surface of the sealing groove. A sealing groove is formed on the outer wall of the outlet pipe, and a sealing ring is fixedly installed on the inner surface of the outlet pipe.

[0013] Through the above technical solutions, the installation of sealing groove one and sealing ring one, and sealing groove two and sealing ring two, can effectively prevent the leakage of sewage or impurities during the sewage discharge process, while also ensuring that the vacuum environment inside the dryer is not damaged.

[0014] Preferably, the sealing groove one, sealing ring one, sealing groove two, and sealing ring two are in one-to-one correspondence.

[0015] The above technical solutions ensure the integrity and accuracy of the seal through a one-to-one correspondence design, avoiding sealing leaks. Each sealing ring can function in its corresponding sealing groove, enhancing sealing performance and ensuring that the dryer maintains a good sealing state during sewage discharge and normal operation. Furthermore, it provides excellent sealing for both internal and external connections, improving its practicality.

[0016] Preferably, there are three identical sealing grooves, sealing rings, sealing grooves, and sealing rings, which are equidistant from each other, and the sealing rings are rubber sealing rings.

[0017] Through the above technical solution, multiple equally spaced sealing grooves and sealing rings further enhance the sealing effect. Even if one sealing ring experiences slight wear or incomplete sealing, the other sealing rings can still guarantee a certain sealing performance, improving the reliability of the sealing structure. The use of rubber sealing rings not only provides good sealing performance but also has a certain degree of elasticity and corrosion resistance, extending the service life of the sealing structure.

[0018] Compared with the prior art, the present invention provides a vacuum dryer with the following advantages:

[0019] 1. The vacuum dryer features a sealing assembly that facilitates wastewater discharge, allowing for the timely removal of wastewater or impurities to prevent them from affecting the drying effect and corroding the equipment. The interconnected design of the connecting pipes, drain port, inlet pipe, and outlet pipe ensures smooth wastewater discharge.

[0020] 2. The design of the sealing groove and sealing ring in this vacuum dryer effectively prevents leakage of sewage or impurities during sewage discharge, ensuring that the vacuum environment inside the dryer is not disrupted. The one-to-one correspondence and multiple equidistantly distributed designs enhance sealing performance and reliability. Even if individual sealing rings malfunction, the other sealing rings can still maintain a certain sealing effect. The good sealing performance, elasticity, and corrosion resistance of the rubber sealing rings extend the service life of the sealing structure, and they can achieve a good sealing effect for both internal and external connections, improving its practicality. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 1 ;

[0022] Figure 2 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 2 ;

[0023] Figure 3 This is a schematic diagram showing the disassembled structure of the dryer tank and the dryer top cover of this utility model;

[0024] Figure 4This is a schematic diagram of the disassembled structure of this utility model;

[0025] Figure 5 This is a schematic diagram of the installation structure of the sealing assembly and connecting seat of this utility model;

[0026] Figure 6 This is a schematic diagram of the disassembled structure of the sealing component of this utility model. Figure 1 ;

[0027] Figure 7 This is a schematic diagram of the disassembled structure of the sealing component of this utility model. Figure 2 .

[0028] The components include: 1. Dryer tank body; 2. Bottom cover; 3. Extension wall; 4. Limiting groove; 5. Discharge port; 6. Dryer top cover; 7. Meter; 8. Sealing assembly; 801. Connecting pipe; 802. Drain outlet; 803. Inlet pipe; 804. Outlet pipe; 805. Sealing groove one; 806. Sealing ring one; 807. Sealing groove two; 808. Sealing ring two; 9. Connecting seat; 10. Positioning block. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] Example 1: As Figure 1-7 As shown, the present invention provides a vacuum dryer, including a dryer tank 1 and a dryer top cover 6 adapted to the dryer tank 1. An extension wall 3 and a limiting groove 4 are fixedly installed at the end of the dryer tank 1 away from the bottom cover 2 and close to the dryer top cover 6. A discharge port 5 is provided on the outer wall of the dryer tank 1 away from the center line. A meter 7 and a connecting seat 9 are provided at the end of the dryer top cover 6 away from the dryer tank 1. A sealing assembly 8 is provided on the discharge port 5 of the dryer tank 1 and the side of the dryer top cover 6 close to the connecting seat 9.

[0031] Specifically, a bottom cover 2 is provided at the end of the dryer tank 1 away from the top cover 6, and a positioning block 10 is fixedly installed at the end of the bottom cover 2 away from the dryer tank 1. The advantage is that the positioning block 10 can make the vacuum dryer more stable when placed, preventing the dryer from being affected by shaking or shifting during operation, which could lead to damage to the equipment. At the same time, it can more accurately determine the position of the dryer, making it easier to use in conjunction with other equipment.

[0032] Specifically, the dryer tank 1 is adapted to the extension wall 3 and the limiting groove 4. The dryer top cover 6 has a "semi-circular" cross-section. The advantage is that when installing the dryer top cover 6, the dryer top cover 6 is aligned with the dryer tank 1, so that the edge of the dryer top cover 6 matches the extension wall 3. Then the dryer top cover 6 is moved down along the extension wall 3 until the dryer top cover 6 is fitted and engaged with the limiting groove 4, thus completing the installation. The adaptation design of the extension wall 3 and the limiting groove 4 can ensure that the dryer top cover 6 and the dryer tank 1 are accurately installed, ensuring the sealing between the two and preventing air from entering during the vacuum drying process and affecting the drying effect.

[0033] Specifically, the sealing assembly 8 includes a connecting pipe 801. A drain port 802 is provided at the end of the connecting pipe 801 away from the dryer tank 1 and the dryer top cover 6. An inlet pipe 803 is fixedly installed at the end of the drain port 802 near the dryer tank 1 and the dryer top cover 6. An outlet pipe 804 is fixedly installed at the end of the drain port 802 away from the dryer tank 1 and the dryer top cover 6. The connecting pipe 801, drain port 802, inlet pipe 803, and outlet pipe 804 are interconnected. The advantage of this design is that the sealing assembly 8 facilitates drainage operations during dryer use, allowing for the timely removal of wastewater or impurities from the dryer, preventing these substances from affecting the drying effect or causing corrosion to the equipment. Simultaneously, the interconnected design of the connecting pipe 801, drain port 802, inlet pipe 803, and outlet pipe 804 ensures a smooth drainage process.

[0034] Example 2: Figure 2-7 This is shown as an improvement on the previous embodiment.

[0035] Specifically, a sealing groove 805 is provided on the inner wall of the outlet pipe 804, and a sealing ring 806 is fixedly installed on the inner surface of the sealing groove 805. A sealing groove 807 is provided on the outer wall of the outlet pipe 804, and a sealing ring 808 is fixedly installed on the inner surface of the outlet pipe 804. The advantage is that the setting of sealing groove 805 and sealing ring 806, and sealing groove 807 and sealing ring 808 can effectively prevent sewage or impurities from leaking during the sewage discharge process, while also ensuring that the vacuum environment inside the dryer is not damaged.

[0036] Specifically, sealing groove 805, sealing ring 806, sealing groove 807, and sealing ring 808 are in one-to-one correspondence. The advantage is that the one-to-one correspondence design ensures the integrity and accuracy of the seal, avoids sealing leaks, and each sealing ring can play its role in its corresponding sealing groove, enhancing the sealing performance and ensuring that the dryer maintains a good sealing state during sewage discharge and normal operation. Moreover, it can achieve a good sealing effect for both internal and external connections, improving its practicality.

[0037] Specifically, there are three identical sealing grooves 805, sealing rings 806, sealing grooves 807, and sealing rings 808. These three sealing grooves 805, sealing rings 806, sealing grooves 807, and sealing rings 808 are equidistantly distributed. Sealing rings 806 and 808 are rubber sealing rings. The advantage is that the multiple equidistantly distributed sealing grooves and sealing rings further enhance the sealing effect. Even if one sealing ring experiences slight wear or a poor seal, the other sealing rings can still maintain a certain sealing performance, improving the reliability of the sealing structure. The use of rubber sealing rings not only provides good sealing performance but also has a certain degree of elasticity and corrosion resistance, extending the service life of the sealing structure.

[0038] Working principle: During use, the dryer tank 1 is fitted with the placement surface by the positioning block 10 on the bottom cover 2 to ensure stable placement of the equipment. The top cover 6 of the dryer fits with the extension wall 3 of the dryer tank 1 through its edge, slides down along the extension wall 3 to engage with the limiting groove 4, completes the installation and ensures sealing. When sewage needs to be discharged, the valve of the sewage outlet 802 is opened, and the sewage or impurities in the dryer tank 1 flow into the sewage outlet 802 through the inlet pipe 803 and are then discharged through the outlet pipe 804. The connecting pipe 801 plays a connecting and guiding role. The sealing groove 805 on the inner wall and the sealing groove 807 on the outer wall of the outlet pipe 804 of the sealing assembly 8 are respectively fitted with sealing ring 806 and sealing ring 808. When connected to external components, the sealing rings are in close contact with the connecting components to prevent sewage or impurities from leaking out, while maintaining the vacuum environment inside the dryer. Multiple equally distributed sealing grooves and sealing rings work together to further improve the sealing effect.

[0039] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A vacuum dryer comprising a dryer can (1) and a dryer top cover (6) adapted to the dryer can (1), characterized in that: An extension wall (3) and a limiting groove (4) are fixedly installed at the end of the dryer tank (1) away from the bottom cover (2) and close to the top cover (6). A discharge port (5) is provided on the outer wall of the dryer tank (1) away from the center line. A meter (7) and a connecting seat (9) are provided at the end of the top cover (6) away from the dryer tank (1). A sealing assembly (8) is provided on the discharge port (5) of the dryer tank (1) and the side of the top cover (6) close to the connecting seat (9).

2. A vacuum desiccator as claimed in claim 1, wherein: A bottom cover (2) is provided at one end of the dryer tank (1) away from the top cover (6), and a positioning block (10) is fixedly installed at one end of the bottom cover (2) away from the dryer tank (1).

3. A vacuum desiccator as claimed in claim 1, wherein: The dryer tank (1) is adapted to the extension wall (3) and the limiting groove (4), and the dryer top cover (6) has a "semi-circular" cross-section.

4. A vacuum desiccator as claimed in claim 1, wherein: The sealing assembly (8) includes a connecting pipe (801), with a drain port (802) at one end of the connecting pipe (801) away from the dryer tank (1) and the dryer top cover (6). An inlet pipe (803) is fixedly installed at one end of the drain port (802) near the dryer tank (1) and the dryer top cover (6). An outlet pipe (804) is fixedly installed at one end of the drain port (802) away from the dryer tank (1) and the dryer top cover (6). The connecting pipe (801), the drain port (802), the inlet pipe (803), and the outlet pipe (804) are connected.

5. A vacuum desiccator as claimed in claim 4, wherein: The inner wall of the outlet pipe (804) is provided with a sealing groove (805), and a sealing ring (806) is fixedly installed on the inner surface of the sealing groove (805). The outer wall of the outlet pipe (804) is provided with a sealing groove (807), and a sealing ring (808) is fixedly installed on the inner surface of the outlet pipe (804).

6. A vacuum desiccator as claimed in claim 5, wherein: The sealing groove one (805), sealing ring one (806), sealing groove two (807), and sealing ring two (808) are in one-to-one correspondence.

7. A vacuum dryer according to claim 6, characterized in that: The first sealing groove (805), the first sealing ring (806), the second sealing groove (807), and the second sealing ring (808) are provided in three identical forms. The three first sealing grooves (805), the first sealing rings (806), the second sealing grooves (807), and the second sealing rings (808) are equidistantly distributed. The first sealing rings (806) and the second sealing rings (808) are rubber sealing rings.

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