Molecular sieve filling and mounting structure

Abstract

The utility model discloses a molecular sieve filling and mounting structure, which is applied to the field of molecular sieve mounting structures and comprises an outer screen drum, and an inner screen drum is arranged in the outer screen drum. The inner screen drum is used for filling the molecular sieve, when the molecular sieve is replaced, only the air inlet pipe and the upper connecting pipe need to be separated, the connecting base is rotated to drive the upper cover and the outer screen drum to divide flow, the upper cover drives the limiting groove, the limiting column, the rotating base, the pressing disc and the inner screen drum to be separated, and the pressing disc and the inner screen drum are separated. The inner screen drum filled with the molecular sieves can be directly pulled out, the molecular sieves in the inner screen drum can be poured out, after refilling, the inner screen drum is placed in the outer screen drum, and the pressing disc and the upper cover are installed, so that when the molecular sieves are replaced, the lower connecting pipe does not need to be connected with the oxygen outlet pipe to be separated. In addition, according to the mounting structure, the upper cover, the pressure plate and the inner screen drum can be dismounted and mounted by a user in a bare-handed manner without using any dismounting tool.

Description

Technical Field

[0001] This utility model relates to the field of molecular sieve installation structures, and in particular to a molecular sieve filling and installation structure. Background Technology

[0002] Oxygen concentrators utilize the adsorption properties of molecular sieves. Through physical principles and powered by a large-displacement oil-free compressor, they separate nitrogen and oxygen from the air to obtain a high concentration of oxygen. Oxygen concentrators produce oxygen rapidly and at a high concentration, making them suitable for oxygen therapy and health maintenance for various groups of people.

[0003] Molecular sieves in oxygen concentrators require replacement after long-term use. The molecular sieves are installed directly inside the molecular sieve cylinder, but this installation structure requires connecting pipes at both the top and bottom (the upper pipe is the air inlet pipe, and the lower pipe is the oxygen outlet pipe). Replacing the molecular sieve necessitates disassembling both the upper and lower pipes to empty the sieve from the cylinder for refilling, which is inconvenient. To address these issues, we propose a new molecular sieve filling and installation structure. Utility Model Content

[0004] The purpose of this invention is to provide a molecular sieve filling and installation structure, the advantage of which is that the molecular sieve can be replaced without removing the lower pipeline.

[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a molecular sieve filling and installation structure, including an outer sieve cylinder, an inner sieve cylinder inside the outer sieve cylinder, a barrier net fixedly sleeved at the bottom of the inner sieve cylinder, molecular sieves filled inside the inner sieve cylinder, a pressure plate threadedly connected inside the inner sieve cylinder, a filter screen fixedly sleeved at the bottom of the pressure plate, a connecting pipe fixedly sleeved at the top of the filter screen and fixedly sleeved with the inner sieve cylinder, a sealing sleeve fixedly sleeved on the surface of the connecting pipe, a top cover threadedly connected to the surface of the outer sieve cylinder, and an upper connecting pipe fixedly sleeved inside the top cover and slidably connected to the sealing sleeve.

[0006] By adopting the above technical solution, an inner sieve cylinder is used to fill the molecular sieve. When replacing the molecular sieve, it is only necessary to separate the inlet pipe and the upper connecting pipe. Rotating the connecting seat drives the upper cover and the outer sieve cylinder to separate the flow. The upper cover then drives the limiting groove, limiting column, rotating seat, pressure plate, and inner sieve cylinder to separate. By separating the pressure plate and the inner sieve cylinder, the inner sieve cylinder filled with molecular sieve can be pulled out directly. The molecular sieve inside the inner sieve cylinder can be poured out, refilled, and then placed back into the outer sieve cylinder. The pressure plate and upper cover are then installed. This eliminates the need to separate the lower connecting pipe from the oxygen outlet pipe when replacing the molecular sieve. Furthermore, this installation structure does not require any disassembly tools; the user can disassemble and install the upper cover, pressure plate, and inner sieve cylinder by hand.

[0007] The present invention is further configured such that: a rotating seat is fixedly connected to the top of the pressure plate, and the interior of the rotating seat is fixedly sleeved with the connecting pipe.

[0008] By adopting the above technical solution, the rotating base allows users to easily rotate it clockwise or counterclockwise by hand.

[0009] The present invention is further configured such that: two limiting posts are fixedly connected to the top of the rotating seat, and two limiting grooves are opened at the bottom of the inner cavity of the upper cover to engage with the limiting posts.

[0010] Using the above technical solution, by setting the limiting column and limiting groove, the pressure plate and the inner screen cylinder are first threadedly connected, the limiting column and the limiting groove are aligned, the sealing sleeve is sealed and slid into the interior of the upper connecting pipe, and the limiting column and the limiting groove are engaged. Then, by rotating the upper cover, the rotating seat and the pressure plate can be driven to rotate through the limiting column and the limiting groove. By rotating the pressure plate downward into the interior of the inner screen cylinder, the molecular sieve filled inside the inner screen cylinder can be compacted.

[0011] The present invention is further configured such that: a connecting seat is fixedly connected to the top of the upper cover, and the interior of the connecting seat is fixedly sleeved with the upper connecting pipe.

[0012] By adopting the above technical solution, the connection seat allows the user to rotate the top cover by hand, so that the top cover and the outer screen cylinder can be threadedly connected or separated.

[0013] The present invention is further configured such that the upper connecting pipe is used to connect to the air intake pipe.

[0014] Using the above technical solution, the intake pipe (not shown in the figure) receives compressed air from the intake pipe through the upper connecting pipe. The upper connecting pipe delivers the gas to the connecting pipe. The connection between the upper connecting pipe and the connecting pipe is sealed by a sealing sleeve to prevent gas from escaping. The gas passes through the connecting pipe, passes through the filter screen, and comes into contact with the molecular sieve. The molecular sieve is used to trap nitrogen, allowing oxygen in the air to continue to be discharged into the oxygen outlet pipe through the lower connecting pipe for the user to absorb.

[0015] The present invention is further configured such that: the bottom of the outer screen cylinder is connected to a lower connecting pipe, the lower connecting pipe is located at the bottom of the barrier net, and the lower connecting pipe is used to connect to the oxygen outlet pipe.

[0016] Using the above technical solution, the oxygen outlet pipe (not shown in the figure) is used to transport the oxygen filtered by the molecular sieve to the oxygen outlet pipe through the setting of the lower connecting pipe, and the oxygen outlet pipe delivers the oxygen to the user.

[0017] The present invention is further configured such that: a slider is fixedly connected to the surface of the inner screen cylinder, and a groove is provided on the inner wall of the outer screen cylinder to slide and connect with the slider.

[0018] The above technical solution is used to limit the inner screen cylinder, so that the inner screen cylinder will not rotate due to the installation of the pressure plate and the inner screen cylinder after it is inserted into the outer screen cylinder.

[0019] In summary, this utility model has the following beneficial effects:

[0020] This invention utilizes an inner sieve cylinder for filling molecular sieves. When replacing the molecular sieve, simply separate the inlet pipe and the upper connecting pipe. Rotating the connecting seat causes the upper cover and outer sieve cylinder to separate, and the upper cover causes the limiting groove, limiting column, rotating seat, pressure plate, and inner sieve cylinder to separate. By separating the pressure plate and inner sieve cylinder, the inner sieve cylinder filled with molecular sieves can be directly pulled out, the molecular sieve inside the inner sieve cylinder can be poured out, and after refilling, it can be placed back into the outer sieve cylinder. Then, the pressure plate and upper cover can be installed. This eliminates the need to separate the lower connecting pipe from the oxygen outlet pipe when replacing the molecular sieve. Furthermore, this installation structure requires no disassembly tools; the user can disassemble and install the upper cover, pressure plate, and inner sieve cylinder by hand. Attached Figure Description

[0021] Figure 1 This is a cross-sectional view of the structure of this utility model;

[0022] Figure 2 This is a utility model Figure 1 Enlarged view of the structure at point A in the middle;

[0023] Figure 3 This is a three-dimensional structural view of the present invention;

[0024] Figure 4 This is a utility model Figure 3 Enlarged view of the structure at point B in the middle.

[0025] Reference numerals in the attached diagram: 1. Outer sieve cylinder; 2. Inner sieve cylinder; 3. Barrier mesh; 4. Molecular sieve; 5. Pressure plate; 6. Filter screen; 7. Connecting pipe; 8. Sealing sleeve; 9. Top cover; 10. Upper connecting pipe; 11. Rotating seat; 12. Limiting post; 13. Limiting groove; 14. Connecting seat; 15. Lower connecting pipe; 16. Sliding block; 17. Slide groove. Detailed Implementation

[0026] The present invention will be further described in detail below with reference to the accompanying drawings.

[0027] Example 1:

[0028] refer to Figure 1 , Figure 2 and Figure 3A molecular sieve filling and installation structure includes an outer sieve cylinder 1, an inner sieve cylinder 2 inside the outer sieve cylinder 1, a barrier mesh 3 fixedly sleeved at the bottom of the inner sieve cylinder 2, a molecular sieve 4 filled inside the inner sieve cylinder 2, a pressure plate 5 threadedly connected inside the inner sieve cylinder 2, a filter screen 6 fixedly sleeved at the bottom of the pressure plate 5, a connecting pipe 7 fixedly sleeved at the top of the filter screen 6 and fixedly sleeved with the inner sieve cylinder 2, a sealing sleeve 8 fixedly sleeved on the surface of the connecting pipe 7, an upper cover 9 threadedly connected to the surface of the outer sieve cylinder 1, and an upper connecting pipe 10 fixedly sleeved inside the upper cover 9 and slidably connected with the sealing sleeve 8; by setting the inner sieve cylinder 2... For filling molecular sieve 4, when replacing molecular sieve 4, it is only necessary to separate the inlet pipe and the upper connecting pipe 10. Rotating the connecting seat 14 drives the upper cover 9 and the outer sieve cylinder 1 to split the flow. The upper cover 9 drives the limiting groove 13, the limiting column 12, the rotating seat 11, the pressure plate 5 and the inner sieve cylinder 2 to separate. By separating the pressure plate 5 and the inner sieve cylinder 2, the inner sieve cylinder 2 filled with molecular sieve 4 can be pulled out directly. The molecular sieve 4 inside the inner sieve cylinder 2 can be poured out. After refilling, it can be placed back into the outer sieve cylinder 1. Then, the pressure plate 5 and the upper cover 9 can be installed. This means that when replacing molecular sieve 4, it is not necessary to separate the oxygen outlet pipe connected to the lower connecting pipe 15. Furthermore, this installation structure does not require any disassembly tools. Users can disassemble and install the upper cover 9, the pressure plate 5 and the inner sieve cylinder 2 by hand.

[0029] Furthermore, a rotating seat 11 is fixedly connected to the top of the pressure plate 5. The interior of the rotating seat 11 is fixedly sleeved with the connecting pipe 7. The rotating seat 11 allows the user to rotate it clockwise or counterclockwise by hand.

[0030] Furthermore, two limiting posts 12 are fixedly connected to the top of the rotating seat 11, and two limiting grooves 13 are opened at the bottom of the inner cavity of the upper cover 9 to engage with the limiting posts 12. By setting the limiting posts 12 and limiting grooves 13, the pressure plate 5 and the inner screen cylinder 2 are first threadedly connected, the limiting posts 12 and the limiting grooves 13 are aligned, the sealing sleeve 8 is sealed and slid into the interior of the upper connecting pipe 10, and the limiting posts 12 and the limiting grooves 13 are engaged. After that, rotating the upper cover 9 can drive the rotating seat 11 and the pressure plate 5 to rotate through the limiting posts 12 and the limiting grooves 13. By rotating the pressure plate 5 downward into the interior of the inner screen cylinder 2, the molecular sieve 4 filled inside the inner screen cylinder 2 can be compacted.

[0031] Furthermore, a connecting seat 14 is fixedly connected to the top of the upper cover 9, and the interior of the connecting seat 14 is fixedly sleeved with the upper connecting pipe 10.

[0032] Furthermore, the upper connecting pipe 10 is used to connect to the air intake pipe (not shown in the figure). The air intake pipe receives compressed air from the air intake pipe through the upper connecting pipe 10. The upper connecting pipe 10 delivers the gas to the connecting pipe 7. The connection between the upper connecting pipe 10 and the connecting pipe 7 is sealed by the sealing sleeve 8 to prevent gas from escaping. The gas passes through the connecting pipe 7, passes through the filter screen 6, and comes into contact with the molecular sieve 4. The molecular sieve 4 is used to trap nitrogen, allowing oxygen in the air to continue to be discharged into the oxygen outlet pipe through the lower connecting pipe 15 for the user to absorb.

[0033] Furthermore, the bottom of the outer sieve cylinder 1 is connected to a lower connecting pipe 15, which is located at the bottom of the barrier net 3. The lower connecting pipe 15 is used to connect to the oxygen outlet pipe (not shown in the figure). Through the setting of the lower connecting pipe 15, the oxygen filtered by the molecular sieve 4 is transported to the oxygen outlet pipe, and the oxygen outlet pipe delivers the oxygen to the user.

[0034] Furthermore, a slider 16 is fixedly connected to the surface of the inner screen cylinder 2, and a groove 17 is provided on the inner wall of the outer screen cylinder 1 to slide and connect with the slider 16, which is used to limit the inner screen cylinder 2 so that the inner screen cylinder 2 will not rotate due to the installation of the pressure plate 5 and the inner screen cylinder 2 after it is inserted into the inner screen cylinder 1.

[0035] Brief description of the usage process: When in use, the compressor of the oxygen generator compresses the air and inputs it into the upper connecting pipe 10 through the air inlet pipe. The gas comes into contact with the upper connecting pipe 10, the connecting pipe 7, the filter screen 6 and the molecular sieve 4. The molecular sieve 4 intercepts and separates the nitrogen and oxygen. The nitrogen is intercepted and the oxygen enters the oxygen outlet pipe through the lower connecting pipe 15. The oxygen outlet pipe delivers the oxygen to the user for absorption.

[0036] When the molecular sieve 4 needs to be replaced by a long-term user, the upper cover 9 is rotated to separate the limiting groove 13 and the limiting column 12. The rotation of the limiting column 12 drives the rotating seat 11 and the pressure plate 5 to rotate. The tightening direction of the pressure plate 5 and the inner sieve cylinder 2 is the same as the tightening direction of the upper cover 9 and the outer sieve cylinder 1. When the upper cover 9 and the outer sieve cylinder 1 are separated, the upper cover 9 will move upward. The upper cover 9 rotates the rotating seat 11 and the pressure plate 5 driven by the limiting column 12 and the limiting groove 13. When the pressure plate 5 and the inner sieve cylinder 2 are separated, the pressure plate 5 will also move downward.

[0037] By separating the upper cover 9 and the outer sieve cylinder 1, removing the upper cover 9, and then continuing to rotate the rotating seat 11 to separate the pressure plate 5 and the inner sieve cylinder 2, removing the pressure plate 5, and then pulling out the inner sieve cylinder 2, the molecular sieve 4 inside the inner sieve cylinder 2 is tilted out and refilled.

[0038] Slide the slider 16 on the surface of the inner sieve cylinder 2 into the groove 17 after filling. First, thread the pressure plate 5 to the inner sieve cylinder 2. Then, pass the sealing sleeve 8 through the upper connecting pipe 10 to form a seal. Engage the limiting groove 13 and the limiting post 12. Rotate the upper cover 9 so that it is threadedly connected to the outer sieve cylinder 1. When the upper cover 9 is downward, the pressure plate 5 will also be downward, which can compress the molecular sieve 4. After the upper cover 9 is installed, connect the air inlet pipe and the upper connecting pipe 10.

[0039] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.

Claims

1. A molecular sieve filling and installation structure, comprising an outer sieve cylinder (1), characterized in that: The outer sieve cylinder (1) is provided with an inner sieve cylinder (2). A barrier net (3) is fixedly sleeved at the bottom of the inner sieve cylinder (2). Molecular sieves (4) are filled inside the inner sieve cylinder (2). A pressure plate (5) is threadedly connected inside the inner sieve cylinder (2). A filter screen (6) is fixedly sleeved at the bottom of the pressure plate (5). A connecting pipe (7) is fixedly sleeved at the top of the filter screen (6) and fixedly sleeved with the inner sieve cylinder (2). A sealing sleeve (8) is fixedly sleeved on the surface of the connecting pipe (7). A top cover (9) is threadedly connected to the surface of the outer sieve cylinder (1). An upper connecting pipe (10) is fixedly sleeved inside the top cover (9) and is slidably and sealingly connected with the sealing sleeve (8).

2. The molecular sieve filling and installation structure according to claim 1, characterized in that: The top of the pressure plate (5) is fixedly connected to a rotating seat (11), and the interior of the rotating seat (11) is fixedly sleeved with the connecting pipe (7).

3. The molecular sieve filling and installation structure according to claim 2, characterized in that: The top of the rotating seat (11) is fixedly connected to two limiting posts (12), and the bottom of the inner cavity of the upper cover (9) is provided with two limiting grooves (13) that engage with the limiting posts (12).

4. The molecular sieve filling and installation structure according to claim 1, characterized in that: The top of the upper cover (9) is fixedly connected to a connecting seat (14), and the interior of the connecting seat (14) is fixedly sleeved with the upper connecting pipe (10).

5. The molecular sieve filling and installation structure according to claim 1, characterized in that: The upper connecting pipe (10) is used to connect to the air intake pipe.

6. The molecular sieve filling and installation structure according to claim 1, characterized in that: The bottom of the outer screen cylinder (1) is connected to a lower connecting pipe (15), which is located at the bottom of the barrier net (3) and is used to connect to the oxygen outlet pipe.

7. The molecular sieve filling and installation structure according to claim 1, characterized in that: The inner screen cylinder (2) is fixedly connected to a slider (16), and the inner wall of the outer screen cylinder (1) is provided with a sliding groove (17) that is slidably connected to the slider (16).

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