A portable closed cavity drying apparatus

Abstract

This invention proposes a portable, sealed cavity drying device, comprising a detachable air guiding component, a water vapor separation component, and a self-balancing gas driving component. One end of the detachable air guiding component is sealed to the sealed cavity, and the other end is connected to the gas path of the water vapor separation component. The water vapor separation component is connected to the self-balancing gas driving component. The drying device and the sealed cavity form a new sealed space. The self-balancing gas driving component circulates air within this sealed space, and drying occurs during this air circulation process via the water vapor separation component. This invention achieves air circulation within the sealed cavity through the self-balancing gas driving component, completing the drying of the air within the sealed cavity during the circulation process.

Description

Technical Field

[0001] This invention relates to a portable, sealed cavity drying device, belonging to the technical field of visual navigation devices. Background Technology

[0002] Visual navigation devices are widely used in scenarios such as autonomous navigation for drones and autonomous driving for automobiles. These devices require clear images to function properly. Considering factors such as moisture interference with imaging and the need for subsequent maintenance, most visual navigation devices employ a detachable, sealed cavity structure, retaining a vent for drying and other operations. Due to manufacturing processes, it is difficult to guarantee complete dryness inside the visual navigation device; furthermore, due to the "breathing effect," it will absorb moisture during operation. Therefore, regular drying operations are necessary to reduce the internal moisture content and ensure reliable and stable operation.

[0003] Currently, most desktop drying equipment for visual navigation devices places the entire visual navigation device inside the drying oven, requiring other auxiliary equipment and having a large size, making it difficult to meet the needs of field use. Furthermore, exhaust drying equipment is difficult to apply to closed-chamber structures with only a single vent. Summary of the Invention

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide a portable sealed cavity drying device for rapidly drying single-hole sealed cavities such as visual navigation devices in various scenarios such as outdoor fields.

[0005] The technical solution of the present invention: a portable sealed cavity drying device, comprising a separate gas guiding component, a water vapor separation component, and a self-balancing gas driving component;

[0006] One end of the separate air guide assembly is sealed to the closed cavity, and the other end is connected to the gas path of the water vapor separation assembly. The water vapor separation assembly is connected to the self-balancing gas drive assembly. The drying device and the closed cavity form a new sealed space. The air in the sealed space is circulated by the self-balancing gas drive assembly, and the air is dried by the water vapor separation assembly during the air circulation process.

[0007] The beneficial effects of this invention compared to the prior art are as follows:

[0008] (1) The present invention uses a self-balancing gas drive component to realize the circulation of air in a sealed cavity, and completes the drying of air in the sealed cavity during the circulation process.

[0009] (2) The present invention has a simple structure and is easy to carry, overcoming the problem of inconvenience in the production and use of visual navigation devices in the prior art. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of an embodiment of the present invention;

[0011] Figure 2 This is a schematic diagram of a self-balancing gas-driven assembly according to an embodiment of the present invention;

[0012] Figure 3 This is a simplified linkage model for an embodiment of the present invention. Detailed Implementation

[0013] This invention addresses the inconvenience of drying and maintenance during the production and use of visual navigation devices by proposing a portable, sealed-cavity drying device, comprising a detachable air-guiding assembly, a water vapor separation assembly, and a self-balancing gas-driven assembly. One end of the detachable air-guiding assembly is sealed to the sealed cavity through a vent at the bottom of the cavity, while the other end is connected to the air path of the water vapor separation assembly. The water vapor separation assembly includes a first water vapor separation assembly and a second water vapor separation assembly arranged in parallel. The self-balancing gas-driven assembly includes a first air cylinder and a second air cylinder arranged in parallel. The first and second water vapor separation assemblies are respectively mounted on the first and second air cylinders, forming a new sealed space between the drying device and the sealed cavity.

[0014] The first and second air cylinders are each equipped with a first piston and a second piston. The first piston is connected to a drive device, which allows it to move axially back and forth inside the first air cylinder under the action of the drive device. The first and second shafts are respectively located in the middle of the first and second pistons. The two ends of the linkage rod are equipped with guide rail structures, which form a sliding connection with the first and second shafts respectively. A fixed third shaft is set in the middle of the first and second shafts of the linkage rod, and the linkage rod can rotate around the third shaft.

[0015] The drive unit drives the first piston to move, drawing or introducing a certain volume of gas from the sealed cavity through the first water vapor separation component and the separate gas guide component. The first piston transmits power to the linkage rod through the first shaft. Under the action of the guide rail and the first shaft, the linkage rod rotates around the third shaft, and then transmits power to the second shaft through the guide rail at the other end, so that the second shaft transmits power to the second piston. The first piston and the second piston are linked. The second piston moves in the opposite direction, introducing or drawing the gas of that volume into the sealed cavity through the second water vapor separation component and the separate gas guide component. During this process, the gas passing through is dried by the first water vapor separation component and the second water vapor separation component.

[0016] Furthermore, the separate air-guiding assembly of the present invention includes at least two air-guiding pipes, one end of which extends into the sealed cavity, and the other end is connected to the air passage of the first water vapor separation assembly and the second water vapor separation assembly respectively.

[0017] Preferably, the separate air-guiding assembly consists of two air-guiding tubes of different lengths. One end of the longer air-guiding tube extends into the top of the sealed cavity, and the other end is connected to the air passage of the first water vapor separation assembly. One end of the shorter air-guiding tube extends into the bottom of the sealed cavity, and the other end is connected to the air passage of the second water vapor separation assembly.

[0018] Furthermore, the water vapor separation component of the present invention contains a desiccant or other substance that can dry the air.

[0019] Furthermore, a sealing structure is provided between the first piston, the second piston and the first air cylinder, the second air cylinder of the present invention.

[0020] Furthermore, the first and second air cylinders of this invention have the same structural dimensions.

[0021] Furthermore, the drive device can be manual, hydraulic, pneumatic, or electric, as long as it can achieve axial movement of the first piston within the first air cylinder.

[0022] The present invention will now be described in detail with reference to specific examples and accompanying drawings.

[0023] This example Figure 1-3 As shown, it includes a separate gas guide assembly, a water vapor separation assembly, a self-balancing gas drive assembly, and a gas path connection assembly.

[0024] like Figure 1 As shown, this example is connected to a sealed cavity such as a visual navigation device through a vent. This example and the sealed cavity such as the visual navigation device form a new sealed cavity, thereby drying the water vapor in the new sealed cavity.

[0025] like Figure 1 As shown, the separate air guide assembly is used to separate the airflow entering and exiting the water vapor separator to achieve thorough drying of the gas within the new sealed cavity. The separate air guide assembly is connected to the sealed cavity via threads and forms a seal using a sealing rubber ring.

[0026] The water vapor separation assembly is used to dry the gas entering and exiting a portable, sealed cavity drying device. It connects to the separate gas guide assembly via hoses, connectors, and other gas path connection components; and to the self-balancing gas drive assembly via threads, forming a seal using a sealing rubber ring. A desiccant can be placed inside the water vapor separation assembly to dry the gas passing through it.

[0027] Self-balancing gas drive components such as Figure 2 As shown, this is used to drive the gas to reciprocate between the self-balancing gas drive component and the sealed cavity. The gas drive can be manual or electric.

[0028] The self-balancing gas drive assembly mainly includes: two independent threaded gas cylinders, identical in size and fixedly connected together, with a shaft (shaft A) in the middle; two pistons (shaft B and shaft C) with sealing rings and shafts; an H-shaped linkage rod; and a drive handle. Shaft A passes through the central hole of the linkage rod, allowing the linkage rod to rotate only around shaft A; shafts B and C pass through grooves at both ends of the linkage rod, allowing the linkage rod to rotate around shaft A and slide within the grooves in the direction of the linkage rod's rotation. When the drive handle moves, it directly drives the piston on shaft B, which in turn drives the piston on shaft C via shaft A and the linkage rod.

[0029] The simplified model of the linkage between axes B and C is as follows: Figure 3 As shown, the drive handle drives the piston from positions BD and CE to positions B'D' and C'E'. According to the design, the vertical distance L between shaft B and shaft A is... BD The vertical distance L between axis C and axis A CE Equal, i.e., L BD =L CE From this, we can obtain the following formula.

[0030]

[0031] Similarly, we can obtain L AD′ =L AE′ Therefore, L can be obtained DD′ =L EE′ That is, when the drive handle moves the pistons on shafts B and C, the distance the piston on shaft B moves forward (or backward) is the same as the distance the piston on shaft C moves backward (or forward). According to the design, the two cylinders are of the same size, so the volume of gas discharged (or drawn in) by the cylinder on shaft B is the same as the volume of gas drawn in (or discharged) by the cylinder on shaft C, allowing the two cylinders to achieve self-balancing.

[0032] In use, a desiccant is placed inside the water vapor separation component. The component is connected to the above-mentioned components, and the gas is driven to reciprocate between the self-balancing gas drive component and the sealed cavity using the self-balancing gas drive component. Drying is completed through the water vapor separation component.

[0033] The parts of this invention not described in detail are techniques known to those skilled in the art.

Claims

1. A portable, sealed cavity drying device, characterized in that: This includes a separate gas guiding assembly, a water vapor separation assembly, and a self-balancing gas drive assembly; One end of the separate air guide assembly is sealed to the closed cavity, and the other end is connected to the gas path of the water vapor separation assembly. The water vapor separation assembly is connected to the self-balancing gas drive assembly. The drying device and the closed cavity form a new sealed space. The air in the sealed space is circulated by the self-balancing gas drive assembly, and the air is dried by the water vapor separation assembly during the air circulation process.

2. The portable sealed cavity drying device according to claim 1, characterized in that: The self-balancing gas drive assembly includes a first gas cylinder and a second gas cylinder arranged in parallel. A first piston and a second piston are respectively installed inside the first gas cylinder and the second gas cylinder. The first piston is connected to the drive device, so that it can move back and forth along the axis inside the first gas cylinder under the action of the drive device. A first shaft and a second shaft are respectively installed at the middle position of the first piston and the second piston. Guide rail structures are installed at both ends of the linkage rod, which form a sliding connection relationship with the first shaft and the second shaft respectively. A fixed third shaft is installed at the middle position of the linkage rod between the first shaft and the second shaft, and the linkage rod can rotate around the third shaft. The drive device drives the first piston to move, extracting or inputting a certain volume of gas from the sealed cavity through the water vapor separation component and the separate gas guide component. The first piston transmits power to the linkage rod through the first shaft. Under the action of the guide rail and the first shaft, the linkage rod rotates around the third shaft, and then transmits power to the second shaft through the guide rail at the other end, so that the second shaft transmits power to the second piston. The first piston and the second piston are linked. The second piston moves in the opposite direction, inputting or extracting the gas volume into or out of the sealed cavity through the water vapor separation component and the separate gas guide component. During this process, the gas passing through is dried by the water vapor separation component.

3. The portable sealed cavity drying device according to claim 2, characterized in that: The water vapor separation assembly includes a first water vapor separation assembly and a second water vapor separation assembly arranged in parallel, with the first water vapor separation assembly and the second water vapor separation assembly respectively mounted on the first air cylinder and the second air cylinder.

4. The portable sealed cavity drying device according to claim 3, characterized in that: The described separate air-guiding assembly includes at least two air-guiding pipes, one end of which extends into the sealed cavity, and the other end is connected to the air passages of the first water vapor separation assembly and the second water vapor separation assembly, respectively.

5. A portable sealed cavity drying device according to claim 4, characterized in that: The separate air-guiding assembly consists of two air-guiding tubes, one long and one short. One end of the long air-guiding tube extends into the top of the sealed cavity, and the other end is connected to the air passage of the first water vapor separation assembly. One end of the short air-guiding tube extends into the bottom of the sealed cavity, and the other end is connected to the air passage of the second water vapor separation assembly.

6. A portable sealed cavity drying device according to any one of claims 1-5, characterized in that: The air guide tube extends into the sealed cavity through the vent at the bottom of the sealed cavity.

7. A portable sealed cavity drying device according to claim 6, characterized in that: The first and second air cylinders have the same structural dimensions.

8. A portable sealed cavity drying device according to claim 7, characterized in that: A sealing structure is provided between the first piston, the second piston, the first air cylinder, and the second air cylinder.

9. A portable sealed cavity drying device according to claim 8, characterized in that: The drive device can be operated manually, hydraulically, pneumatically, or electrically to achieve axial movement of the first piston within the first air cylinder.

10. A portable sealed cavity drying device according to claim 9, characterized in that: The water vapor separation component uses a desiccant.

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