CN219314578U - Novel molecular sieve component connection structure - Google Patents

Abstract

The utility model discloses a novel molecular sieve component connecting structure which comprises a molecular sieve, a base, an air inlet pipe and a compressor, wherein the molecular sieve and the compressor are respectively arranged at two sides of the base, the molecular sieve is communicated with the compressor through the air inlet pipe, an installation seat for limiting the molecular sieve is arranged on the base, an installation hole concentric with an air inlet of the molecular sieve is arranged on the installation seat, the air inlet pipe penetrates through the installation hole and then is connected with the air inlet of the molecular sieve, a sealing ring is arranged at the connection position, a screw for fixedly connecting the molecular sieve with the base is arranged at the bottom of the molecular sieve, and the molecular sieve is fixed on the base through the arrangement of a limiting ring, a convex block and a step in the installation hole in the air inlet pipe.

Description

Novel molecular sieve component connection structure

Technical Field

The utility model relates to the field of small-sized oxygenerator structures, in particular to a novel molecular sieve component connecting structure.

Background

The molecular sieve assembly of the oxygenerator is a very critical component. Compressed air compressed by the compressor passes through the three-way valve assembly and then enters the air inlet of the molecular sieve. The nitrogen in the compressed air can be adsorbed by molecular sieve particles in the molecular sieve cylinder, and is switched by the valve of the three-way valve assembly, so that the nitrogen can be released as waste gas when the pressure in the molecular sieve cylinder is released. Through the pressure swing adsorption mode, the oxygen in the air can be purified to more than 90 percent. Molecular sieves are a very critical component in this process. In general, molecular sieves are a consumable material and require periodic replacement, so rapid installation and removal of molecular sieve assemblies is a relatively important feature in evaluating the advantages of oxygenerator-type equipment. And when the molecular sieve component is rapidly installed, ensuring the sealing performance after installation is an important index.

The traditional molecular sieve subassembly is installed after the installation, and the intake pipe is often all fixed on the base, after the installation, because there is slight deviation easily to the position size of two molecular sieve air inlets and the position size of two intake pipes, this deviation can let the sealing washer compression atress of molecular sieve air inlet inhomogeneous after the installation to lead to leaking, finally influencing the concentration of oxygenerator, after the molecular sieve is installed simultaneously, traditional molecular sieve often adopts slidable spring buckle and molecular sieve to connect, is released after preventing molecular sieve atress. However, in actual operation, the buckle often has a relatively large gap with the chute in order to slide relatively easily. Therefore, the molecular sieve is easy to deform under stress in use, so that the compression amount at the air inlet sealing ring is uneven, and the air inlet part leaks.

In view of the above problems, the present application proposes a solution.

Disclosure of Invention

The utility model aims to: the utility model aims to provide a novel molecular sieve component connecting structure, which can avoid the situation that a sealing ring at a molecular sieve air inlet is stressed on one side, and further can avoid the leakage situation of the sealing ring in the use process caused by the stress on one side.

The technical scheme is as follows: the novel molecular sieve component connecting structure comprises a molecular sieve, a base, an air inlet pipe and a compressor, wherein the molecular sieve and the compressor are respectively arranged at two sides of the base, the molecular sieve and the compressor are communicated through the air inlet pipe, the base is provided with a mounting seat of a limiting molecular sieve, the mounting seat is provided with a mounting hole concentric with an air inlet of the molecular sieve, the air inlet pipe is connected with the air inlet of the molecular sieve after penetrating through the mounting hole, a sealing ring is arranged at the connecting position, and a screw for fixedly connecting the molecular sieve with the base is arranged at the bottom of the molecular sieve.

Preferably, the position of the air inlet pipe extending into the mounting hole is provided with a lug, the lug is opposite to the outer wall of the air inlet pipe by taking the axis of the air inlet pipe as a symmetrical axis, and a limit ring for limiting the position of the air inlet pipe extending into the mounting hole is arranged above the lug.

Preferably, the inner diameter of the mounting hole is larger than the outer diameter of the air inlet pipe and smaller than the distance from the end of the lug to the axis of the air inlet pipe.

Preferably, a step for limiting the air inlet pipe is arranged on the inner wall of the mounting hole, and the distance from the step to the top of the mounting hole is the same as the distance from the lug to the limiting ring.

Preferably, the screw is a flat head screw.

This application is through distance between spacing collar and the lug on the control intake pipe outer wall and the distance of step to mounting hole top the same, realized stretching into the mounting hole back at axial spacing to the inlet port, can ensure that the intake pipe is installed and can not exist axial effort to the sealing washer in the position of sealing washer between the mounting hole back with the molecular sieve inlet port, simultaneously because the internal diameter of mounting hole is greater than the external diameter of intake pipe and is less than the tip of lug to the distance of the axle center of inlet port, after the intake pipe stretches into the mounting hole promptly, be in existence gap between the outer wall of intake pipe and the inner wall of mounting hole, even the vibrations shake of production horizontal plane of equipment at work promptly, through the setting in gap, the intake pipe can produce certain displacement and can not cause unilateral extrusion to the sealing washer on the horizontal plane, single side atress that leads to the sealing washer, consequently the sealing washer can not be in the long-term use of equipment atress, and then lead to leaking.

Meanwhile, the flat head screw is adopted to fixedly connect the molecular sieve with the base, on one hand, the flat head screw provides an axial fixing effect for the molecular sieve and the base, on the other hand, the contact surface of the flat head screw and the bottom of the molecular sieve is large relative to the contact surface of the common screw, so that the action force of the common screw on an excessively concentrated horizontal plane possibly caused by the bottom of the molecular sieve in the installation process can be reduced, and uneven action force caused by the action force on the sealing ring can be reduced, and the sealing ring is leaked in the use process.

The beneficial effects are that:

(1) According to the molecular sieve fixing device, the molecular sieve is fixed on the base through the arrangement of the limiting rings, the protruding blocks and the steps in the mounting holes on the air inlet pipe, and the sealing ring is not stressed on one side, so that leakage of the sealing ring due to long-term unilateral stress is avoided;

(2) The utility model provides a through the setting of flat head screw, reduced the inhomogeneous power that can produce the sealing washer at the in-process of molecular sieve and base fixed connection, further avoided the sealing washer to leak because the atress is inhomogeneous leads to.

Drawings

FIG. 1 is a physical view of the present application with the housing removed;

FIG. 2 is a schematic view of the bottom structure of the present application;

fig. 3 is a cross-sectional view of the connection of the inlet pipe to the molecular sieve through the mounting hole in the present application.

Detailed Description

The present application is further illustrated below in conjunction with specific embodiments.

As shown in fig. 1-3, in this embodiment, the structure of the device is schematically shown, and the device comprises a molecular sieve 1, a base 2, an air inlet pipe 3 and a compressor 4, wherein the molecular sieve 1 and the compressor 4 are respectively installed on two sides of the base 2, the molecular sieve 1 is communicated with the compressor 4 through the air inlet pipe 3, an installation seat for limiting the molecular sieve 1 is arranged on the base 2, an installation hole 5 concentric with an air inlet of the molecular sieve 1 is arranged on the installation seat, the air inlet pipe 3 passes through the installation hole 5 and then is connected with the air inlet of the molecular sieve 1, and a sealing ring 6 is arranged at a connecting position.

In this embodiment, the position of the air inlet pipe 3 extending into the mounting hole 5 is provided with a bump 31, the bump 31 is disposed opposite to the outer wall of the air inlet pipe 3 with the axis of the air inlet pipe 3 as a symmetry axis, and a stop collar 32 for stopping the position of the air inlet pipe 3 extending into the mounting hole 5 is disposed above the bump 31.

In this embodiment, the step 51 for limiting the air inlet pipe 3 is provided on the inner wall of the mounting hole 5, the distance from the step 51 to the top of the mounting hole 5 is the same as the distance from the bump 31 to the limiting ring 32, and meanwhile, the inner diameter of the mounting hole 5 is larger than the outer diameter of the air inlet pipe 3 and smaller than the distance from the end of the bump 31 to the axis of the air inlet pipe 3.

Therefore, the distance between the limit ring 32 and the bump 31 on the outer wall of the air inlet pipe 3 is the same as the distance from the step 51 to the top of the mounting hole 5, the axial limit of the air inlet pipe 3 after extending into the mounting hole 5 can be realized, the axial acting force on the sealing ring 6 can not exist between the air inlet of the air inlet pipe 3 and the position of the sealing ring 6 of the molecular sieve 1 after the air inlet pipe 3 is mounted into the mounting hole 5, meanwhile, because the inner diameter of the mounting hole 5 is larger than the outer diameter of the air inlet pipe 3 and smaller than the distance from the end of the bump 31 to the axis of the air inlet pipe 3, namely, after the air inlet pipe 3 extends into the mounting hole 5, gaps exist between the outer wall of the air inlet pipe 3 and the inner wall of the mounting hole 5, namely, even if the equipment generates vibration shake of a horizontal plane in operation, through the arrangement of the gaps, the air inlet pipe 3 can generate certain displacement on the horizontal plane without extruding the sealing ring 6, so that the sealing ring 6 is stressed, and the sealing ring 6 can not stressed unilaterally in the long-term use process of the equipment, so that leakage is caused.

In this embodiment, the bottom of the molecular sieve 1 is provided with the screw 7 for fixedly connecting the molecular sieve 1 and the base 2, the screw 7 adopts the flat head screw, on one hand, the flat head screw itself provides an axial fixing effect for between the molecular sieve 1 and the base 2, on the other hand, the contact surface of the flat head screw and the bottom of the molecular sieve 1 is large relative to the contact surface of the common screw, so that the acting force of the common screw on a too concentrated horizontal plane possibly caused by the bottom of the molecular sieve in the installation process can be reduced, and further the uneven acting force caused by the acting force on the sealing ring 6 can be reduced, so that the sealing ring 6 leaks in the use process.

According to the molecular sieve sealing device, the molecular sieve 1 is fixed on the base 2 through the arrangement of the limit ring 32, the protruding block 31 and the step 51 in the mounting hole 5 on the air inlet pipe 3, and the sealing ring 6 is not stressed on one side, so that leakage of the sealing ring 6 due to long-term unilateral stress is avoided; meanwhile, flat head screws are further adopted to fix the molecular sieve 1 and the base 2, so that uneven force possibly generated on the sealing ring 6 in the process of fixedly connecting the molecular sieve 1 and the base 2 is reduced, and leakage of the sealing ring 6 due to uneven stress is further avoided.

Claims (5)

1. Novel molecular sieve subassembly connection structure, its characterized in that: including molecular sieve (1), base (2), intake pipe (3) and compressor (4), both sides at base (2) are installed respectively to molecular sieve (1) and compressor (4), through intake pipe (3) UNICOM between molecular sieve (1) and the compressor (4), be provided with the mount pad of spacing molecular sieve (1) on base (2), be provided with on the mount pad with the endocentric mounting hole (5) of the air inlet of molecular sieve (1), intake pipe (3) pass behind mounting hole (5) with the air inlet connection of molecular sieve (1), hookup location is provided with sealing washer (6), molecular sieve (1) bottom is provided with screw (7) that are used for fixed connection molecular sieve (1) and base (2).

2. The novel molecular sieve assembly connection structure of claim 1, wherein: the air inlet pipe (3) stretches into the position of the mounting hole (5) and is provided with a lug (31), the lug (31) is opposite to the outer wall of the air inlet pipe (3) by taking the axis of the air inlet pipe (3) as a symmetrical axis, and a limit ring (32) for limiting the position of the air inlet pipe (3) stretching into the mounting hole (5) is arranged above the lug (31).

3. The novel molecular sieve assembly connection structure of claim 2, wherein: the inner diameter of the mounting hole (5) is larger than the outer diameter of the air inlet pipe (3) and smaller than the distance from the end part of the lug (31) to the axis of the air inlet pipe (3).

4. The novel molecular sieve assembly connection structure of claim 2, wherein: the inner wall of the mounting hole (5) is provided with a step (51) for limiting the air inlet pipe (3), and the distance from the step (51) to the top of the mounting hole (5) is the same as the distance from the lug (31) to the limiting ring (32).

5. The novel molecular sieve assembly connection structure of claim 1, wherein: the screw (7) is a flat head screw.

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