Pressure stabilizing and switching device for chemical air separation and purification

Abstract

The utility model discloses a pressure-stabilizing switching device for chemical air separation purification, which comprises a mounting component, a pressure-stabilizing component and a pressure-stabilizing component, the mounting component comprises a connecting pipe and an air cylinder, and the air cylinder is fixedly connected to the outer side of the connecting pipe; the sealing assembly is arranged on one side of the connecting pipe and comprises a sealing pipe and a fixing box, the sealing pipe is fixedly connected to one side of the connecting pipe, and the fixing box is fixedly connected to the outer side of the sealing pipe; the buffer assembly is arranged on one side of the connecting pipe and comprises a pipeline and a first support, the pipeline is arranged on the inner side of the connecting pipe, and the first support is arranged on the outer side of the pipeline. According to the air separation and purification switching device, the situation that a pipeline shakes in the air separation and purification switching operation can be relieved, the situation of leakage is effectively reduced, operation is easy and convenient, and the sealing effect is better.

Description

Technical Field

[0001] The utility model relates to the technical field of chemical air separation equipment, in particular to a voltage-stabilizing switching device for chemical air separation purification. Background Technique

[0002] In the chemical industry, air separation technology is a method of gas separation based on physical principles. Air separation purification is the process of separating and purifying gas components such as nitrogen, oxygen, and argon from the air. In the process of chemical production, air separation technology is widely used in the separation and preparation of gases such as oxygen, nitrogen, and argon, and has made important contributions to the development of the chemical industry. In modern industry, air separation purification technology is widely used in many industries such as medicine, food, chemical industry, and environmental protection. A voltage-stabilizing switching device for air separation purification process with the Chinese patent application number: 202221685050.4 has the following beneficial effects: The utility model seals the connection between the two pipelines through an airbag, ensuring the sealing effect and reducing the impact of pipeline fluctuations on the seal, thereby ensuring the stable working state of the lower tower pressure. However, when in use, through the threaded shaft, threaded sleeve, and fixed seat, the pipeline gradually enters the deep part of the sealing mechanism. When the pipeline is relatively heavy, it is laborious to drive the movement of the fixed seat and the pipeline by rotating the threaded shaft, and at the same time, it is necessary to rotate multiple threaded shafts in sequence, and the operation is relatively cumbersome. Summary of the Invention

[0003] In order to solve certain or some technical problems existing in the prior art, the purpose of this application is to provide a voltage-stabilizing switching device for chemical air separation purification, which can reduce the shaking of the pipeline during the switching operation of air separation purification, effectively reduce the occurrence of leakage, is simple and convenient to operate, and has a better sealing effect.

[0004] To solve the above-mentioned existing technical problems, the purpose of this application is achieved by adopting the following technical solutions:

[0005] A voltage-stabilizing switching device for chemical air separation purification, which includes an installation component, including a connecting pipe and a cylinder, the cylinder is fixedly connected to the outside of the connecting pipe; a sealing component, arranged on one side of the connecting pipe, including a sealing pipe and a fixed box, the sealing pipe is fixedly connected to one side of the connecting pipe, and the fixed box is fixedly connected to the outside of the sealing pipe; and a buffer component, arranged on one side of the connecting pipe, including a pipeline and a first bracket, the pipeline is arranged inside the connecting pipe, and the first bracket is arranged outside the pipeline.

[0006] As a preferred embodiment of the voltage-stabilizing switching device for chemical air separation and purification of the present utility model, wherein: the connecting pipe includes a sleeve, a stabilizing rod, a positioning disc and a connecting ring. The sleeve is fixedly connected to the outside of the connecting pipe. The stabilizing rod is slidably connected to the inside of the sleeve. The positioning disc is fixedly connected to one end of the stabilizing rod. The connecting ring is arranged on one side of the positioning disc.

[0007] As a preferred embodiment of the voltage-stabilizing switching device for chemical air separation and purification of the present utility model, wherein: the cylinder includes a connecting rod, a fixed column, an arc-shaped plate and a sealing ring. The connecting rod is fixedly connected to the piston rod of the cylinder. The fixed column is fixedly connected to the inner ring of the connecting ring. The arc-shaped plate is fixedly connected to one side of the fixed column. The sealing ring is fixedly connected to one side of the arc-shaped plate.

[0008] As a preferred embodiment of the voltage-stabilizing switching device for chemical air separation and purification of the present utility model, wherein: the sealing pipe includes a sealing ring, a fixed pipe, a connecting ring and a snap ring. The sealing ring is arranged inside the sealing pipe. The fixed pipe is fixedly connected to the inside of the sealing pipe. The connecting ring is fixedly connected to the inside of the fixed pipe. The snap ring is fixedly connected to the inside of the connecting ring.

[0009] As a preferred embodiment of the voltage-stabilizing switching device for chemical air separation and purification of the present utility model, wherein: the fixed box includes a handwheel, a threaded rod and a positioning member. The handwheel is arranged inside the fixed box. The threaded rod is fixedly connected to one side of the handwheel. The positioning member is arranged at one end of the threaded rod.

[0010] As a preferred embodiment of the voltage-stabilizing switching device for chemical air separation and purification of the present utility model, wherein: the positioning member includes a limiting plate, a sealing gasket and a threaded sleeve. The limiting plate is fixedly connected to one end of the threaded rod. The sealing gasket is fixedly connected to the inside of the limiting plate. The threaded sleeve is threadedly connected to the outside of the threaded rod.

[0011] As a preferred embodiment of the voltage-stabilizing switching device for chemical air separation and purification of the present utility model, wherein: the pipe includes a buffer pad, a second bracket and a bolt. The buffer pad is fixedly connected to the inside of the first bracket. The second bracket is arranged at the bottom of the first bracket. The bolt is arranged inside the second bracket.

[0012] As a preferred embodiment of the voltage-stabilizing switching device for chemical air separation and purification of the present utility model, wherein: the first bracket includes a support seat, a shock-absorbing member and a connecting member. The support seat is fixedly connected to the outside of the second bracket. The shock-absorbing member is arranged inside the support seat. The connecting member is arranged on top of the shock-absorbing member.

[0013] As a preferred embodiment of the voltage stabilizing and switching device for chemical air separation and purification described in the present utility model, wherein: the shock-absorbing member includes a placement box, a spring, and a buffer rod. The placement box is fixedly connected to the inner side of the support seat. The spring is welded to the bottom of the inner cavity of the placement box, and the buffer rod is welded to one end of the spring.

[0014] As a preferred embodiment of the voltage stabilizing and switching device for chemical air separation and purification described in the present utility model, wherein: the connecting member includes a connecting frame, a rubber rod, and a connecting plate. The connecting frame is fixedly connected to one end of the buffer rod. The rubber rod is fixedly connected to the top of the connecting frame, and the connecting plate is fixedly connected to one end of the rubber rod.

[0015] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0016] By providing an installation component, it is convenient and labor-saving to drive the two pipelines into the sealing pipe respectively, and the operation is simple and convenient. By providing a sealing component, it is convenient to connect and seal the ends of the two pipelines, ensuring the sealing effect and effectively reducing the occurrence of leakage. By providing a buffer component, it supports and shock-absorbs the pipelines, reducing the shaking of the pipelines during the switching operation of air separation and purification. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is an overall structure diagram of the voltage stabilizing and switching device for chemical air separation and purification.

[0018] Figure 2 It is a structural schematic diagram of the installation component of the voltage stabilizing and switching device for chemical air separation and purification.

[0019] Figure 3 It is a structural schematic diagram of the sealing component of the voltage stabilizing and switching device for chemical air separation and purification.

[0020] Figure 4 It is a structural schematic diagram of the support seat and buffer pad of the voltage stabilizing and switching device for chemical air separation and purification.

[0021] Figure 5 It is a structural schematic diagram of the connecting plate and spring of the voltage stabilizing and switching device for chemical air separation and purification.

[0022] Reference numerals in the figure: 100, mounting assembly; 101, connecting pipe; 102, cylinder; 101a, sleeve; 101b, stabilizing rod; 101c, positioning disk; 101d, connecting ring; 102a, connecting rod; 102b, fixing column; 102c, arc plate; 102d, sealing ring; 200, sealing assembly; 201, sealing pipe; 202, fixing box; 201a, sealing ring; 201b, fixing pipe; 201c, connecting ring; 201d, snap ring; 202a, handwheel; 202b, threaded rod; 202c, positioning member; 202c-1, limiting plate; 202c-2, sealing gasket; 202c-3, threaded sleeve; 300, buffer assembly; 301, pipeline; 302, first bracket; 301a, buffer pad; 301b, second bracket; 301c, bolt; 302a, support seat; 302b, shock absorber; 302b-1, placement box; 302b-2, spring; 302b-3, buffer rod; 302c, connecting member; 302c-1, connecting frame; 302c-2, rubber rod; 302c-3, connecting plate. Detailed implementation manners

[0023] Next, in combination with the accompanying drawings and specific implementation manners, the present application will be further described. It should be noted that, on the premise of no conflict, the following-described embodiments or technical features can be arbitrarily combined with each other to form new embodiments.

[0024] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present application.

[0025] The terms "first", "second", etc. in the present application are used to distinguish similar objects, rather than to describe a specific order or sequence. It should be understood that such data can be interchanged under appropriate circumstances so that the embodiments of the present application can be implemented in an order other than those illustrated or described herein, and the objects distinguished by "first", "second", etc. are usually of the same category, and the number of objects is not limited. For example, the first object can be one or multiple. In addition, "and / or" in the description and claims means at least one of the connected objects, and the character " / " generally represents an "or" relationship between the associated objects before and after.

[0026] Embodiment 1

[0027] Refer to Figures 1 to 5, which is the first embodiment of the present utility model. This embodiment provides a voltage-stabilizing switching device for chemical air separation purification. The voltage-stabilizing switching device for chemical air separation purification includes an installation component 100, a sealing component 200, and a buffer component 300. By setting the installation component 100, it is convenient and labor-saving to drive two pipelines 301 into the inside of the sealing pipe 201 respectively, and the operation is simple and convenient. By setting the sealing component 200, it is convenient to connect and seal the ends of the two pipelines 301, ensuring the sealing effect and effectively reducing the occurrence of leakage. By setting the buffer component 300, it supports and shock-absorbs the pipeline 301, reducing the shaking of the pipeline 301 during the switching operation of air separation purification.

[0028] The installation component 100 includes a connecting pipe 101 and a cylinder 102. The cylinder 102 is fixedly connected to the outside of the connecting pipe 101;

[0029] The cylinder 102 is fixed and installed through the connecting pipe 101. Under the action of the installation component 100, the installation and connection operations are convenient and labor-saving.

[0030] The sealing component 200 is arranged on one side of the connecting pipe 101 and includes a sealing pipe 201 and a fixing box 202. The sealing pipe 201 is fixedly connected to one side of the connecting pipe 101, and the fixing box 202 is fixedly connected to the outside of the sealing pipe 201;

[0031] Two connecting pipes 101 are respectively fixedly connected to both sides of the sealing pipe 201. At the same time, the sealing pipe 201 is internally connected to the two connecting pipes 101, and the fixing box 202 plays a role in safety protection and leakage prevention.

[0032] The buffer component 300 is arranged on one side of the connecting pipe 101 and includes a pipeline 301 and a first bracket 302. The pipeline 301 is arranged inside the connecting pipe 101, and the first bracket 302 is arranged outside the pipeline 301.

[0033] The inside of the pipeline 301 is connected to the inside of the connecting pipe 101 and the sealing pipe 201, and the first bracket 302 plays a role in connection and support stability.

[0034] Embodiment 2

[0035] Refer to Figure 1 and Figure 2 , which is the second embodiment of the present utility model. This embodiment is based on the previous embodiment.

[0036] Specifically, the connecting pipe 101 includes a sleeve 101a, a stabilizing rod 101b, a positioning disc 101c, and a connecting ring 101d. The sleeve 101a is fixedly connected to the outside of the connecting pipe 101. The stabilizing rod 101b is slidably connected to the inside of the sleeve 101a. The positioning disc 101c is fixedly connected to one end of the stabilizing rod 101b. The connecting ring 101d is arranged on one side of the positioning disc 101c.

[0037] The positioning disc 101c and one side of the connecting ring 101d are conveniently fixed by screws. Three positioning discs 101c, stabilizing rods 101b, and sleeves 101a are respectively arranged on one side of the connecting pipe 101d. When the connecting ring 101d moves, driven by the positioning disc 101c, the stabilizing rod 101b moves under the limitation of the sleeve 101a, which is beneficial to improving the operating stability.

[0038] Specifically, the cylinder 102 includes a connecting rod 102a, a fixed column 102b, an arc-shaped plate 102c, and a sealing ring 102d. The connecting rod 102a is fixedly connected to the piston rod of the cylinder 102. The fixed column 102b is fixedly connected to the inner ring of the connecting ring 101d. The arc-shaped plate 102c is fixedly connected to one side of the fixed column 102b. The sealing ring 102d is fixedly connected to one side of the arc-shaped plate 102c.

[0039] One end of the connecting rod 102a is fixedly connected with a positioning disc 101c, and through the positioning disc 101c, the connecting rod 102a is connected and fixed to the connecting ring 101d. Driven by the cylinder 102, the connecting rod 102a drives the connecting ring 101d to move through the positioning disc 101c, facilitating the adjustment of the positions of the connecting ring 101d, the sealing ring 102d, etc.

[0040] Embodiment 3

[0041] Refer to Figure 1 、 Figure 3 、 Figure 4 and Figure 5 , which is the third embodiment of the present utility model. This embodiment is based on the first two embodiments.

[0042] The sealing pipe 201 includes a sealing ring 201a, a fixed pipe 201b, a connecting ring 201c, and a snap ring 201d. The sealing ring 201a is arranged inside the sealing pipe 201. The fixed pipe 201b is fixedly connected to the inside of the sealing pipe 201. The connecting ring 201c is fixedly connected to the inside of the fixed pipe 201b. The snap ring 201d is fixedly connected to the inside of the connecting ring 201c.

[0043] The sealing effect is effectively enhanced by the sealing rings 201a at both ends of the sealing pipe 201. The fixing pipe 201b facilitates the fixation of the connecting ring 201c and the snap ring 201d. At the same time, the connecting ring 201c and the snap ring 201d are placed at the central position of the fixing pipe 201b, and the inside of the snap ring 201d is in communication with the inside of the sealing pipe 201 and the connecting pipe 101.

[0044] Specifically, the fixing box 202 includes a handwheel 202a, a threaded rod 202b, and a positioning member 202c. The handwheel 202a is arranged inside the fixing box 202, the threaded rod 202b is fixedly connected to one side of the handwheel 202a, and the positioning member 202c is arranged at one end of the threaded rod 202b.

[0045] The handwheel 202a is protected by the fixing box 202 while maintaining the sealing effect. Under the action of the handwheel 202a, it is convenient to drive the threaded rod 202b to rotate.

[0046] Specifically, the positioning member 202c includes a limiting plate 202c-1, a sealing gasket 202c-2, and a threaded sleeve 202c-3. The limiting plate 202c-1 is fixedly connected to one end of the threaded rod 202b, the sealing gasket 202c-2 is fixedly connected to the inside of the limiting plate 202c-1, and the threaded sleeve 202c-3 is threadedly connected to the outside of the threaded rod 202b.

[0047] One side of the threaded sleeve 202c-3 is fixedly connected to the outside of the fixing pipe 201b. By rotating the threaded rod 202b, under the action of the threaded sleeve 202c-3, the limiting plate 202c-1 and the sealing gasket 202c-2 are driven to move, facilitating the adjustment of their positions.

[0048] Specifically, the pipeline 301 includes a buffer pad 301a, a second bracket 301b, and a bolt 301c. The buffer pad 301a is fixedly connected to the inside of the first bracket 302, the second bracket 301b is arranged at the bottom of the first bracket 302, and the bolt 301c is arranged inside the second bracket 301b.

[0049] With the cooperation of the first bracket 302, the second bracket 301b, the buffer pad 301a, and the bolt 301c, it is convenient to support the pipeline 301 and enhance the stability effect.

[0050] Specifically, the first bracket 302 includes a support base 302a, a shock absorber 302b, and a connecting member 302c. The support base 302a is fixedly connected to the outside of the second bracket 301b, the shock absorber 302b is arranged inside the support base 302a, and the connecting member 302c is arranged at the top of the shock absorber 302b.

[0051] The second bracket 301b and the first bracket 302 are supported by the support base 302a. Through the cooperation of the shock absorber 302b and the connecting piece 302c, it is convenient to carry out shock absorption and buffering for the pipeline 301, effectively reducing the shaking of the pipeline caused during the steady pressure switching.

[0052] Specifically, the shock absorber 302b includes a placement box 302b-1, a spring 302b-2, and a buffer rod 302b-3. The placement box 302b-1 is fixedly connected to the inner side of the support base 302a. The spring 302b-2 is welded to the bottom of the inner cavity of the placement box 302b-1. The buffer rod 302b-3 is welded to one end of the spring 302b-2.

[0053] The spring 302b-2 is fixed by the placement box 302b-1. The spring 302b-2 is sleeved outside the buffer rod 302b-3, and one end of the spring 302b-2 is fixedly connected to one side of the buffer rod 302b-3.

[0054] Specifically, the connecting piece 302c includes a connecting frame 302c-1, a rubber rod 302c-2, and a connecting plate 302c-3. The connecting frame 302c-1 is fixedly connected to one end of the buffer rod 302b-3. The rubber rod 302c-2 is fixedly connected to the top of the connecting frame 302c-1. The connecting plate 302c-3 is fixedly connected to one end of the rubber rod 302c-2.

[0055] The outer side of the connecting frame 302c-1 is slidably connected to the inner side of the placement box 302b-1. The top of the connecting plate 302c-3 is fixedly connected to the outer side of the second bracket 301b. The rubber rod 302c-2 plays a role in connection and positioning, and at the same time, it is convenient to carry out preliminary buffering for the pipeline 301.

[0056] During use, the connecting ring 101d is conveniently connected and fixed to the pipeline 301 through four fixing posts 102b, an arc-shaped plate 102c and screws. Under the action of the four positioning discs 101c and screws, three stabilizing rods 101b and a connecting rod 102a are conveniently fixed to one side of the connecting ring 101d. Driven by the cylinder 102, the connecting rod 102a drives the connecting ring 101d and the pipeline 301 to move under the connection of the positioning disc 101c. At the same time, the stabilizing rod 101b moves under the limitation of the sleeve 101a, which is beneficial to improving the stability of the movement of the pipeline 301, controlling the movement of the pipeline 301 inside the connecting pipe 101, and enabling the pipeline 301 to extend into the sealing pipe 201, so as to connect and install the two pipelines 301. The operation is labor-saving and convenient. At the same time, the arc-shaped plate 102c drives the sealing ring 102d to move, so that the sealing ring 102d is placed between the pipeline 301 and the connecting pipe 101, and the sealing ring 102d seals the connection between the pipeline 301 and the connecting pipe 101. The end of the pipeline 301 abuts against one side of the connecting ring 201c and is placed between the clamping ring 201d and the sealing gasket 202c-2. By driving the threaded rod 202b to rotate under the action of the threaded sleeve 202c-3 through the handwheel 202a, the limiting plate 202c-1 and the sealing gasket 202c-2 are driven to move towards the pipeline 301, so that the sealing gasket 202c-2 contacts the outer circle of the pipeline 301 to seal the pipeline 301, effectively preventing the pipeline 301 from leaking and enhancing the sealing effect. The two pipelines 301 are conveniently supported respectively through the first bracket 302, the second bracket 301b, the buffer pad 301a and the bolt 301c. When switching, under the connection of the connecting plate 302c-3, the pipeline 301 is initially buffered through two rubber rods 302c-2. When the rubber rod 302c-2 presses the connecting frame 302c-1, the connecting frame 302c-1 drives the buffer rod 302b-3 to move downward to compress the spring 302b-2. Under the action of the spring 302b-2, shock absorption and buffering are achieved, effectively reducing the shaking of the pipeline 301 during the air separation purification switching process.

[0057] The above embodiments are only the preferred embodiments of the present application and cannot be used to limit the scope of protection of the present application. Any non-substantive changes and substitutions made by those skilled in the art based on the present application belong to the scope of protection required by the present application.

Claims

1. A voltage stabilizing switching device for chemical air separation purification, characterized in that: include, A mounting assembly (100) comprising a connecting pipe (101) and a cylinder (102), wherein the cylinder (102) is fixedly connected to the outside of the connecting pipe (101); a sealing assembly (200), arranged on one side of the connecting tube (101), comprising a sealing tube (201) and a fixing box (202), wherein the sealing tube (201) is fixedly connected to one side of the connecting tube (101), and the fixing box (202) is fixedly connected to the outside of the sealing tube (201); and, The buffer assembly (300) is arranged on one side of the connecting pipe (101), and comprises a pipe (301) and a first bracket (302), wherein the pipe (301) is arranged on the inner side of the connecting pipe (101), and the first bracket (302) is arranged on the outer side of the pipe (301).

2. A voltage stabilizing switching device for chemical air separation purification according to claim 1, characterized in that: The connecting tube (101) comprises a sleeve (101a), a stabilizing rod (101b), a positioning plate (101c) and a connecting ring (101d); the sleeve (101a) is fixedly connected to the outside of the connecting tube (101); the stabilizing rod (101b) is slidably connected to the inside of the sleeve (101a); the positioning plate (101c) is fixedly connected to one end of the stabilizing rod (101b); and the connecting ring (101d) is arranged on one side of the positioning plate (101c).

3. A voltage stabilizing switching device for chemical air separation purification according to claim 2, characterized in that: The cylinder (102) comprises a connecting rod (102a), a fixing column (102b), an arc-shaped plate (102c) and a sealing ring (102d); the connecting rod (102a) is fixedly connected to a piston rod of the cylinder (102); the fixing column (102b) is fixedly connected to an inner ring of the connecting ring (101d); the arc-shaped plate (102c) is fixedly connected to one side of the fixing column (102b); and the sealing ring (102d) is fixedly connected to one side of the arc-shaped plate (102c).

4. A voltage stabilizing switching device for chemical air separation purification according to claim 3, characterized in that: The sealing tube (201) comprises a sealing ring (201a), a fixing tube (201b), a connecting ring (201c) and a clamping ring (201d); the sealing ring (201a) is arranged on the inner side of the sealing tube (201); the fixing tube (201b) is fixedly connected to the inner side of the sealing tube (201); the connecting ring (201c) is fixedly connected to the inner side of the fixing tube (201b); and the clamping ring (201d) is fixedly connected to the inner side of the connecting ring (201c).

5. A voltage stabilizing switching device for chemical air separation purification according to claim 4, characterized in that: The fixing box (202) comprises a hand wheel (202a), a threaded rod (202b) and a positioning piece (202c); the hand wheel (202a) is arranged on the inner side of the fixing box (202); the threaded rod (202b) is fixedly connected to one side of the hand wheel (202a); and the positioning piece (202c) is arranged at one end of the threaded rod (202b).

6. A voltage stabilizing switching device for chemical air separation purification according to claim 5, characterized in that: The positioning member (202c) comprises a limiting plate (202c-1), a sealing gasket (202c-2) and a threaded sleeve (202c-3); the limiting plate (202c-1) is fixedly connected to one end of the threaded rod (202b); the sealing gasket (202c-2) is fixedly connected to the inner side of the limiting plate (202c-1); and the threaded sleeve (202c-3) is threadedly connected to the outer side of the threaded rod (202b).

7. The voltage stabilizing switching device for chemical air separation and purification according to claim 1 is characterized in that: The pipeline (301) comprises a buffer pad (301a), a second bracket (301b) and a bolt (301c); the buffer pad (301a) is fixedly connected to the inner side of the first bracket (302); the second bracket (301b) is arranged at the bottom of the first bracket (302); and the bolt (301c) is arranged inside the second bracket (301b).

8. A voltage stabilizing switching device for chemical air separation purification according to claim 7, characterized in that: The first bracket (302) comprises a support seat (302a), a shock absorbing member (302b) and a connecting member (302c), wherein the support seat (302a) is fixedly connected to the outside of the second bracket (301b), the shock absorbing member (302b) is arranged on the inside of the support seat (302a), and the connecting member (302c) is arranged on the top of the shock absorbing member (302b).

9. A voltage stabilizing switching device for chemical air separation purification according to claim 8, characterized in that: The shock absorbing member (302b) comprises a placement box (302b-1), a spring (302b-2) and a buffer rod (302b-3); the placement box (302b-1) is fixedly connected to the inner side of the support seat (302a); the spring (302b-2) is welded to the bottom of the inner cavity of the placement box (302b-1); and the buffer rod (302b-3) is welded to one end of the spring (302b-2).

10. A voltage stabilizing switching device for chemical air separation and purification according to claim 9, characterized in that: The connecting member (302c) comprises a connecting frame (302c-1), a rubber rod (302c-2) and a connecting plate (302c-3); the connecting frame (302c-1) is fixedly connected to one end of the buffer rod (302b-3); the rubber rod (302c-2) is fixedly connected to the top of the connecting frame (302c-1); and the connecting plate (302c-3) is fixedly connected to one end of the rubber rod (302c-2).

Images