An oxygen generating device with a molecular sieve convenient to replace

Abstract

This invention belongs to the technical field of oxygen generation equipment, specifically relating to an oxygen generation device that facilitates the replacement of molecular sieves. It includes a shell, a molecular sieve tower, and a movable plate. The molecular sieve tower is located inside the shell, and an installation groove is formed on the side wall of the shell at a corresponding position to the molecular sieve tower. The movable plate is located within the installation groove. An outlet pipe is connected to the top cover and fixedly installed on the shell. A first rack is fixedly installed on the sliding rod near the movable plate, and a second rack is fixedly installed on the lower part of the inner side of the movable plate. A gear is rotatably installed between the first and second racks on the shell. Both sides of the outer wall of the cylinder have protruding posts, and a locking claw is fixedly installed inside the movable plate. Its purpose is to allow for the disassembly / installation of the molecular sieve tower and the oxygen generation device by pulling / pressing the movable plate, and to allow for the opening and closing of the cylinder containing the molecular sieve through the detachable installation of the partition, thereby facilitating the replacement of the molecular sieve. The operation is simple and convenient.

Description

Technical Field

[0001] This invention belongs to the technical field of oxygen generation equipment, specifically relating to an oxygen generation device that facilitates the replacement of molecular sieves. Background Technology

[0002] A molecular sieve oxygen generator is a device that obtains oxygen through physical adsorption. It uses molecular sieves to separate oxygen and nitrogen from the air, filtering out harmful substances to obtain high-purity oxygen. Specifically, air is pressurized by an air compressor, then passes through an air pretreatment device to remove solid impurities such as oil and dust, as well as water, and is cooled to room temperature. The treated compressed gas then enters a molecular sieve tower, where the molecular sieves adsorb nitrogen, while the oxygen exits through the outlet into an oxygen tank. When the nitrogen adsorption in the molecular sieve tower reaches saturation, the pressure inside the tower is reduced, decreasing the nitrogen adsorption capacity of the molecular sieves, and the nitrogen is released from the tower.

[0003] However, in practice, molecular sieves need to be replaced frequently, and molecular sieve towers are often fixed with screws, etc. When replacing them, tools are needed to loosen the screws for disassembly, which is cumbersome and results in slow molecular sieve replacement. Summary of the Invention

[0004] The purpose of this invention is to provide an oxygen generating device that facilitates the replacement of molecular sieves. By pulling / pressing the movable plate, the molecular sieve tower and the oxygen generating device can be disassembled / installed. The opening and closing of the cylinder containing the molecular sieve can be completed through the detachable installation of the partition, thereby completing the replacement of the molecular sieve. The operation is simple and convenient.

[0005] To achieve the above-mentioned technical objectives, the technical solution adopted by the present invention is as follows:

[0006] An oxygen generator that facilitates the replacement of molecular sieves includes a shell, a molecular sieve tower, and a movable plate. The molecular sieve tower is located inside the shell, and the side wall of the shell has an installation groove at a corresponding position of the molecular sieve tower. The movable plate is located inside the installation groove.

[0007] The molecular sieve tower comprises, from top to bottom, an upper cover, a cylinder, and a lower cover. The upper cover is connected to an outlet pipe and is fixedly installed on the shell. The lower cover is connected to an inlet pipe and has a sliding rod fixedly installed on its lower end face. The sliding rod is vertically slidably installed on the shell. The upper and lower ends of the cylinder are respectively inserted into the upper and lower covers. Both the upper and lower ends of the cylinder can be detachably installed with a mesh.

[0008] Waist-shaped blocks are fixedly installed on the lower ends of the side walls on both sides of the movable plate. The housing has vertically opened strip-shaped holes on the inner walls on both sides of the mounting groove. The housing has a circular rotating groove at the top of the strip-shaped holes.

[0009] A first rack is fixedly installed on the side of the sliding rod near the movable plate, and a second rack is fixedly installed on the lower part of the inner side of the movable plate. A gear is rotatably installed between the first rack and the second rack in the housing.

[0010] Both sides of the outer wall of the cylinder are provided with protruding pillars, and the movable plate is fixedly provided with claws inside.

[0011] Furthermore, the upper part of the shell is equipped with a fixing mechanism for securing the movable plate to the shell. This structural design, through the fixing mechanism, secures the movable plate during normal use of the oxygen generator, preventing the molecular sieve tower from loosening due to accidental movement of the movable plate, thus demonstrating strong practicality.

[0012] Further specifying, the fixing mechanism includes a one-way rack, a fixing block, and a support spring. The one-way rack is fixedly installed on the inner wall of the upper part of the movable plate. A mounting groove is laterally opened on the housing. The fixing block is laterally slidably installed in the mounting groove. The support spring is located in the mounting groove and between the housing and the fixing block. This structural design, through the cooperation of the one-way rack, the fixing block, and the support spring, and the cooperation of the waist-shaped block and the strip-shaped hole, limits the degree of freedom of rotation and lateral movement of the movable plate. At the same time, the cooperation of the one-way rack and the fixing block limits the degree of freedom of upward movement of the movable plate, thereby fixing the movable plate. The structure is simple and highly practical.

[0013] Furthermore, the housing has a through-hole in the top wall of the mounting groove, and a push block is fixedly installed in the groove of the fixing block. This structural design, through the cooperation of the push block and the groove, makes it easier to push the fixing block. At the same time, it limits the degree of freedom of the fixing block to move away from the mounting groove, preventing the fixing block from detaching from the mounting groove under the action of the support spring after the movable plate is flipped, thus improving its practicality.

[0014] Furthermore, a pull ring is hinged to the outer wall of the upper part of the movable plate. This structural design makes it more convenient to use, as the movable plate can be pulled by the pull ring.

[0015] Furthermore, the cylinder contains a molecular sieve between two meshes. The mesh located at the top of the cylinder covers the molecular sieve from top to bottom, and a compression spring is provided between the mesh at the top of the cylinder and the top cover. This structural design ensures that the mesh at the top of the cylinder is compressed onto the molecular sieve by the compression spring, meeting the oxygen production requirements of the oxygen generator. After removing the cylinder from the top cover, the mesh at the top of the cylinder can be easily removed, allowing for the replacement of the molecular sieve inside the cylinder, making it more convenient to use.

[0016] Furthermore, a tie post is fixedly installed on the upper end face of the mesh located at the top of the cylinder. This structural design, through the installation of the tie post, allows the mesh located at the top of the cylinder to be directly pulled when disassembling, thereby detaching the mesh from the cylinder and making it more convenient to use.

[0017] Furthermore, the mesh located at the lower part of the cylinder is screwed to the cylinder body. This structural design, through the screw connection between the mesh at the lower part of the cylinder and the cylinder body, allows the mesh at the lower part of the cylinder to be disassembled by rotating it after the mesh at the upper part of the cylinder is removed. This creates a structure that is open from top to bottom, facilitating the cleaning of any clumps of molecular sieve inside the cylinder and making it convenient to use.

[0018] The invention employing the above technical solution has the following advantages:

[0019] 1. The molecular sieve tower and oxygen generator can be disassembled / installed by pulling / pressing the movable plate, and the molecular sieve can be opened and closed by the detachable installation of the partition plate, thereby replacing the molecular sieve. The operation is simple and convenient.

[0020] 2. By fixing the movable plate with the fixing mechanism during normal use of the oxygen generator, the problem of loosening of the molecular sieve tower caused by accidental movement of the movable plate can be avoided, which is highly practical.

[0021] 3. Through the cooperation of the one-way rack, the fixed block and the support spring, the degree of freedom of rotation and lateral movement of the movable plate is limited by the cooperation of the waist block and the strip hole. At the same time, the degree of freedom of upward movement of the movable plate is limited by the cooperation of the one-way rack and the fixed block, thus completing the fixation of the movable plate. The structure is simple and highly practical.

[0022] 4. The cooperation between the push block and the slot makes it easier to push the fixed block. At the same time, it limits the degree of freedom of the fixed block to move away from the mounting slot, preventing the fixed block from detaching from the mounting slot under the action of the support spring after the movable plate is flipped. It is highly practical.

[0023] 5. The movable plate is pulled by a pull ring, making it more convenient to use;

[0024] 6. The mesh located at the top of the cylinder is pressed onto the molecular sieve by a compression spring to meet the oxygen production requirements of the oxygen generator. After the cylinder is removed from the top cover, the mesh located at the top of the cylinder can be easily removed from the cylinder, and the molecular sieve inside the cylinder can be replaced, making it more convenient to use.

[0025] 7. With the addition of pull posts, when disassembling the mesh located at the top of the cylinder, the pull posts can be pulled directly to detach the mesh from the cylinder, making it more convenient to use.

[0026] 8. The mesh located at the bottom of the cylinder is screwed to the cylinder body, so that after removing the mesh located at the top of the cylinder body, the mesh located at the bottom of the cylinder body can be disassembled by rotating the mesh located at the bottom of the cylinder body. This makes the cylinder body form a structure that is open from top to bottom, which is convenient for cleaning the molecular sieves that have hardened inside the cylinder body and is easy to use. Attached Figure Description

[0027] The present invention can be further illustrated by the non-limiting embodiments given in the accompanying drawings;

[0028] Figure 1 This is a schematic diagram of an embodiment of an oxygen generator with an easily replaceable molecular sieve according to the present invention. Figure 1 ;

[0029] Figure 2 This is a cross-sectional structural schematic diagram of an embodiment of an oxygen generation device for easy replacement of molecular sieves according to the present invention.

[0030] Figure 3 This is a schematic diagram of an embodiment of an oxygen generator with an easily replaceable molecular sieve according to the present invention. Figure 2 ;

[0031] Figure 4 This is a schematic diagram of the structure after removing the shell in an embodiment of an oxygen generator device for easy replacement of molecular sieves according to the present invention. Figure 1 ;

[0032] Figure 5 This is a schematic cross-sectional view of an oxygen generator device according to the present invention, which facilitates the replacement of molecular sieves, after the shell has been removed.

[0033] Figure 6 This is a schematic diagram of the structure after removing the shell in an embodiment of an oxygen generator device for easy replacement of molecular sieves according to the present invention. Figure 2 ;

[0034] Figure 7 This is a schematic diagram of the structure after removing the shell in an embodiment of an oxygen generator device for easy replacement of molecular sieves according to the present invention. Figure 3 ;

[0035] Figure 8 This is a schematic diagram of the structure after removing the shell in an embodiment of an oxygen generator device for easy replacement of molecular sieves according to the present invention. Figure 4 ;

[0036] The symbols for the main components are explained below:

[0037] 1. Housing; 11. Mounting slot

[0038] Molecular sieve tower 2, top cover 21,

[0039] Cylinder 22, partition net 220, protruding post 221

[0040] Lower cover 23, sliding rod 231, first rack 232

[0041] Compression spring 24, pull column 241,

[0042] Movable plate 3, waist-shaped block 31, strip hole 311, circular rotating groove 312

[0043] Second rack 32, gear 320

[0044] 33. Claw, 34. One-way rack, 35. Fixing block, 36. Support spring, 37. Groove, 370. Push block, 38. Pull ring. Detailed Implementation

[0045] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that similar or identical parts are referred to by the same reference numerals in the drawings or description. Implementations not shown or described in the drawings are forms known to those skilled in the art. In addition, directional terms mentioned in the embodiments, such as "up," "down," "top," "bottom," "left," "right," "front," and "back," are only for reference to the directions in the drawings and are not intended to limit the scope of protection of the present invention.

[0046] like Figures 1 to 8 As shown, an oxygen generating device of the present invention that facilitates the replacement of molecular sieves includes a shell 1, a molecular sieve tower 2 and a movable plate 3. The molecular sieve tower 2 is located inside the shell 1, and an installation groove 11 is provided on the side wall of the shell 1 at the corresponding position of the molecular sieve tower 2. The movable plate 3 is located in the installation groove 11.

[0047] The molecular sieve tower 2 includes, from top to bottom, an upper cover 21, a cylinder 22, and a lower cover 23. The upper cover 21 is connected to an outlet pipe and is fixedly installed on the shell 1. The lower cover 23 is connected to an inlet pipe and has a sliding rod 231 fixedly installed on its lower end face. The sliding rod 231 is vertically slidably installed on the shell 1. The upper and lower ends of the cylinder 22 are respectively inserted into the upper cover 21 and the lower cover 23. The upper and lower ends of the cylinder 22 can be detachably installed with a mesh 220.

[0048] Waist-shaped blocks 31 are fixedly installed at the lower ends of the side walls on both sides of the movable plate 3. The housing 1 has vertically opened strip-shaped holes 311 on the inner walls on both sides of the mounting groove 11. The housing 1 has a circular rotating groove 312 at the top of the strip-shaped holes 311.

[0049] A first rack 232 is fixedly installed on the side of the sliding rod 231 near the movable plate 3, and a second rack 32 is fixedly installed on the lower part of the inner side of the movable plate 3. A gear 320 is rotatably installed on the housing 1 between the first rack 232 and the second rack 32.

[0050] Both sides of the outer wall of the cylinder 22 are provided with protruding columns 221, and the movable plate 3 is fixedly provided with claws 33 inside.

[0051] The upper part of the shell 1 is equipped with a fixing mechanism for fixing the movable plate 3 to the shell 1. By fixing the movable plate 3 during normal use of the oxygen generator, the problem of the molecular sieve tower 2 becoming loose due to accidental movement of the movable plate 3 can be avoided, which is highly practical.

[0052] The fixing mechanism includes a one-way rack 34, a fixing block 35, and a support spring 36. The one-way rack 34 is fixedly installed on the inner wall of the upper part of the movable plate 3. A horizontal mounting groove is provided on the housing 1. The fixing block 35 is horizontally slidably installed in the mounting groove. The support spring 36 is located in the mounting groove and between the housing 1 and the fixing block 35.

[0053] Through the cooperation of the one-way rack 34, the fixing block 35 and the support spring 36, and through the cooperation of the waist-shaped block 31 and the strip hole 311, the degree of freedom of rotation and lateral movement of the movable plate 3 is limited. At the same time, the degree of freedom of upward movement of the movable plate 3 is limited by the cooperation of the one-way rack 34 and the fixing block 35, thereby completing the fixation of the movable plate 3. The structure is simple and highly practical.

[0054] The housing 1 has a through slot 37 on the top wall of the mounting groove, and a push block 370 is fixedly installed in the slot 37 on the fixing block 35. Through the cooperation of the push block 370 and the slot 37, the fixing block 35 can be pushed more easily. At the same time, the degree of freedom of the fixing block 35 to move away from the mounting groove is limited, so as to prevent the fixing block 35 from dislodging from the mounting groove under the action of the support spring 36 after the movable plate 3 is flipped. It is highly practical.

[0055] A pull ring 38 is hinged to the outer wall of the upper part of the movable plate 3. The movable plate 3 can be pulled by the pull ring 38, making it more convenient to use.

[0056] Molecular sieves are filled between two partitions 220 inside the cylinder 22. The partitions 220 located at the top of the cylinder 22 cover the molecular sieves from top to bottom. A compression spring 24 is provided between the partitions 220 at the top of the cylinder 22 and the top cover 21. The partitions 220 at the top of the cylinder 22 are pressed against the molecular sieves by the compression spring 24 to meet the oxygen production requirements of the oxygen generating device. After the cylinder 22 is removed from the top cover 21, the partitions 220 at the top of the cylinder 22 can be easily removed from the cylinder 22, and the molecular sieves inside the cylinder 22 can be replaced, making it more convenient to use.

[0057] A pull post 241 is fixedly installed on the upper end face of the mesh 220 located on the upper part of the cylinder 22. With the setting of the pull post 241, when disassembling the mesh 220 located on the upper part of the cylinder 22, the pull post 241 can be pulled directly, so that the mesh 220 located on the upper part of the cylinder 22 can be detached from the cylinder 22, making it more convenient to use.

[0058] The mesh 220 located at the lower part of the cylinder 22 is screwed to the cylinder 22. This screw connection allows the mesh 220 at the lower part of the cylinder 22 to be disassembled by rotating it after removing the mesh 220 located at the upper part of the cylinder 22. This creates a fully permeable structure within the cylinder 22, facilitating the cleaning of any clumps of molecular sieve inside the cylinder and making it convenient to use.

[0059] In this embodiment, when it is necessary to replace the molecular sieve in the molecular sieve tower 2, push the push block 370 so that the front end of the fixed block 35 disengages from the one-way rack 34, then rotate the pull ring 38 to the working state, and then pull the movable plate 3 upward through the pull ring 38.

[0060] During the process of pulling the movable plate 3 upward by the pull ring 38, the waist-shaped block 31 moves upward within the strip-shaped hole 311. The upward movement of the movable plate 3 drives the second rack 32 to move upward, which in turn drives the first rack 232 to move downward via the gear 320. This, in turn, causes the lower cover 23 and the cylinder 22 to move downward relative to the upper cover 21 (e.g., Figure 4 As shown), this causes the upper end of the cylinder 22 to detach from the upper cover 21 until the pawl 33 engages with the protrusion 221. At this point, the second rack 32 disengages from the gear 320 (as shown). Figure 6 (as shown);

[0061] The movable plate 3 continues to move upward, causing the cylinder 22 to move upward relative to the lower cover 23, thereby causing the lower end of the cylinder 22 to detach from the lower cover 23 until the waist-shaped block 31 enters the circular rotating groove 312 (as shown). Figure 7 (As shown), at this time, the cylinder 22 detaches from the upper cover 21 and the lower cover 23;

[0062] Then, the movable plate 3 is rotated counterclockwise around the circular rotating groove 312. Utilizing the interaction between the pawl 33 and the protrusion 221, the cylinder 22 rotates along with the movable plate 3 (e.g., Figure 3 and Figure 8 (As shown), at this point, the cylinder 22 can be removed from the oxygen generator;

[0063] After the cylinder 22 is removed, the pull column 241 can be pulled to detach the mesh 220 located on the upper part of the cylinder 22 from the cylinder 22. Then, the cylinder 22 can be flipped over to pour out the molecular sieve inside the cylinder 22 and add a new molecular sieve.

[0064] After the molecular sieve is added, the partition mesh 220 located on the upper part of the cylinder 22 is reinstalled, and then the cylinder 22 is placed on the claw 33, with the movable plate 3 supporting the cylinder 22 (e.g., Figure 3 and Figure 8 (As shown), then follow the steps above in reverse to reinstall the cylinder 22.

[0065] The above provides a detailed description of an oxygen generator with an easily replaceable molecular sieve provided by the present invention. The specific embodiments described are merely for the purpose of helping to understand the method and core ideas of the present invention. It should be noted that those skilled in the art can make various improvements and modifications to the present invention without departing from its principles, and these improvements and modifications also fall within the protection scope of the claims of the present invention.

Claims

1. An oxygen generating device that facilitates the replacement of molecular sieves, characterized in that: It includes a shell (1), a molecular sieve tower (2) and a movable plate (3). The molecular sieve tower (2) is located inside the shell (1). The side wall of the shell (1) is provided with an installation groove (11) at the corresponding position of the molecular sieve tower (2). The movable plate (3) is located inside the installation groove (11). The molecular sieve tower (2) includes an upper cover (21), a cylinder (22) and a lower cover (23) from top to bottom. The upper cover (21) is connected to an outlet pipe and is fixedly installed on the shell (1). The lower cover (23) is connected to an inlet pipe and has a sliding rod (231) fixedly installed on its lower end face. The sliding rod (231) is vertically slidably installed on the shell (1). The upper and lower ends of the cylinder (22) are respectively inserted into the upper cover (21) and the lower cover (23). The upper and lower ends of the cylinder (22) can be detachably installed with a mesh (220). Waist-shaped blocks (31) are fixedly installed on the lower ends of the side walls on both sides of the movable plate (3). The housing (1) has vertically opened strip-shaped holes (311) on the inner walls on both sides of the mounting groove (11). The housing (1) has a circular rotating groove (312) at the top of the strip-shaped holes (311). The sliding rod (231) is fixedly installed with a first rack (232) on the side near the movable plate (3), and a second rack (32) is fixedly installed on the lower part of the inner side of the movable plate (3). The housing (1) is rotatably installed with a gear (320) between the first rack (232) and the second rack (32). Both sides of the outer wall of the cylinder (22) are provided with protruding columns (221), and the movable plate (3) is fixedly provided with claws (33).

2. The oxygen generator with easily replaceable molecular sieve according to claim 1, characterized in that: The upper part of the housing (1) is equipped with a fixing mechanism for fixing the movable plate (3) to the housing (1).

3. An oxygen generator with easily replaceable molecular sieves according to claim 2, characterized in that: The fixing mechanism includes a one-way rack (34), a fixing block (35), and a support spring (36). The one-way rack (34) is fixedly installed on the inner wall of the upper part of the movable plate (3). The housing (1) has a horizontally opened mounting groove. The fixing block (35) is horizontally slidably installed in the mounting groove. The support spring (36) is located in the mounting groove and between the housing (1) and the fixing block (35).

4. An oxygen generator with easily replaceable molecular sieves according to claim 3, characterized in that: The housing (1) has a slot (37) through the top wall of the mounting groove, and the fixing block (35) has a push block (370) fixedly installed in the slot (37).

5. An oxygen generator with easily replaceable molecular sieves according to claim 1, characterized in that: A pull ring (38) is hinged to the outer wall of the upper part of the movable plate (3).

6. An oxygen generator with easily replaceable molecular sieves according to claim 1, characterized in that: Molecular sieves are filled between two partitions (220) inside the cylinder (22). The partitions (220) located at the top of the cylinder (22) cover the molecular sieves from top to bottom. A compression spring (24) is provided between the partitions (220) located at the top of the cylinder (22) and the top cover (21).

7. An oxygen generator with easily replaceable molecular sieves according to claim 6, characterized in that: A tie column (241) is fixedly installed on the upper end face of the partition net (220) located on the upper part of the cylinder (22).

8. An oxygen generator with easily replaceable molecular sieves according to claim 6, characterized in that: The partition mesh (220) located at the lower part of the cylinder (22) is screwed to the cylinder (22).

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