Lightweight gas distribution mechanism convenient to install

By designing the combination of valve core, spacer, button and limit screw in the gas distribution mechanism, the gas distribution and on-off control of the air path is realized, solving the problem of large space occupancy of the existing gas distribution mechanism and improving the machine platform aesthetics.

CN222458472UActive Publication Date: 2025-02-11ZHUHAI WEITIAN ZHIKE PRECISION MASCH CO LTD
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Patent Information

Application Number
CN202421955474.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-08-13
Publication Date
2025-02-11
Estimated Expiration
2034-08-13

AI Technical Summary

Technical Problem

The existing gas distribution mechanism requires external connection of special on-off valves, resulting in a larger overall size and occupy more space, which affects the aesthetics of the machine.

Method used

A lightweight gas distribution mechanism for easy installation is designed. By installing the valve core and spacer in the gas distribution block, using the combination of buttons and limiting screws, the gas distribution and on-off control of the air path is achieved, and the partitioning is avoided. The gas mechanism has the need for special on-off valves.

Benefits of technology

It realizes flexible control of the gas circuit without external on-off valves, which reduces the overall size of the gas distribution mechanism, reduces the space occupied by the device, and improves the aesthetics of the machine.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a light-weight gas distribution mechanism convenient to install, and relates to the technical field of gas distribution mechanisms. Air inlet pipes are fixedly installed on the two sides of the air distribution block, a plurality of air distribution pipes are fixedly connected to the top of the air distribution block, a plurality of valve elements are fixedly installed in the air distribution block, a plurality of circular grooves are formed in the outer surface of each valve element, the periphery of each valve element is sleeved with a spacer bush, and through holes are formed in the top and the bottom of each spacer bush. The through hole in the top of each spacer bush is communicated with each gas distribution pipe, the through hole in the bottom of each spacer bush is communicated with each gas inlet pipe, and a plurality of buttons are arranged at one end of the gas distribution block. According to the air distribution mechanism, the valve element is moved and adjusted by manually pressing the button or the limiting screw, so that the on-off of an air path is controlled, and a special on-off valve does not need to be externally connected to control the closing, so that the overall size of the air distribution mechanism is reduced, the occupied space of the device is reduced, and the attractiveness of a machine table is improved.
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Description

Technical Field

[0001] The utility model relates to the technical field of air distribution mechanisms, in particular to a lightweight air distribution mechanism which is easy to install. Background Art

[0002] Gas diversion is a technology widely used in gas processing and analysis. It separates gas mixtures based on the different characteristics of gas molecules (such as mass, speed, etc.). Generally, a gas diversion mechanism can be used to achieve gas diversion. The gas diversion mechanism is a key technology. Its main task is to safely and effectively distribute high-pressure gas to equipment according to operational requirements and to control the operating procedures. According to different needs, the gas diversion mechanism can divide the gas into gases of different sizes and pressures, and is widely used in the petroleum, chemical, pharmaceutical and other industries.

[0003] The basic components of the gas distribution mechanism include the valve transmission group and the valve group. The former is responsible for transmitting power to drive the valve to open and close, and the latter directly controls the inlet and outlet of gas. In more complex systems, other auxiliary components may also be included, such as gas tanks and controllers, to meet specific application requirements. When the valve transmission group in the common gas distribution mechanism controls the on and off of gas, it generally requires an external special on-off valve to control the on and off of gas.

[0004] Generally, the size of an external on-off valve is large. If it is directly connected to the air distribution mechanism, the overall size of the air distribution mechanism will be enlarged, which will cause the overall space occupied by the air distribution mechanism to be larger, which will easily affect the aesthetics of the machine. Therefore, it is necessary to propose a lightweight air distribution mechanism that is easy to install. Utility Model Content

[0005] The purpose of the utility model is to provide a lightweight air distribution mechanism that is easy to install, so as to solve the problems raised in the above-mentioned background technology.

[0006] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0007] A lightweight air distribution mechanism that is easy to install includes an air distribution block; air inlet pipes are fixedly installed on both sides of the air distribution block, a plurality of air distribution pipes are fixedly connected to the top of the air distribution block, a plurality of valve cores are fixedly installed inside the air distribution block, a plurality of circular grooves are provided on the outer surface of each valve core, a spacer sleeve is sleeved on the periphery of each valve core, a through hole is provided on the top and bottom of each spacer sleeve, the through hole on the top of each spacer sleeve is interconnected with each air distribution pipe, and the through hole at the bottom of each spacer sleeve is interconnected with each air inlet pipe, a plurality of buttons are arranged at one end of the air distribution block, each button is fixedly connected to one end of each valve core respectively, a plurality of sealing rings are attached to the periphery of each valve core inside each spacer sleeve, a plurality of limiting screws are arranged at the other end of the air distribution block, each limiting screw is threadedly connected to the other end of the inside of the valve core respectively, a blocking component for blocking the button is arranged on the top of each button, a limiting component for limiting the limiting screw is arranged on the top of each limiting screw, and a mounting frame is threadedly installed on the other end of the air distribution block, and the mounting frame is located on the outside of the limiting screw.

[0008] By installing the valve core and the spacer sleeve, the flow trajectory of the gas entering the gas distribution block through the air inlet pipe can be guided and limited, thereby ensuring that the gas can be discharged through each gas distribution pipe respectively. By pushing the button to the other end, the valve core can be simultaneously pushed to the other end, and the limit screw can be simultaneously pushed to the other end, so that the circular groove on the outer surface of the valve core is aligned with the through holes on the top and bottom of the spacer sleeve, so that the gas can enter the interior of each gas distribution pipe through the through holes of the spacer sleeve, thereby realizing gas distribution processing of the gas path; by pushing the limit screw to one end, the valve core can be simultaneously pushed to one end, and the button can be simultaneously pushed to one end, so that the circular groove on the outer surface of the valve core is away from the through holes on the top and bottom of the spacer sleeve, so that the position of the groove is staggered with the through holes, thereby preventing the gas from entering the interior of each gas distribution pipe through the through holes of the spacer sleeve, thereby realizing blocking processing of the gas path, thereby realizing control of the on-off of the gas path, and there is no need to connect a special on-off valve to the gas distribution mechanism to control the closing.

[0009] A further improvement of the technical solution of the utility model is that each blocking component includes a fixing frame, each fixing frame is fixedly connected to the surface of one end of the air distributor block, and each fixing frame is respectively fitted with the surface of the top of each button, a baffle is slidably installed at one end of each fixing frame, a connecting plate is fixedly connected to the top of each fixing frame, and the bottom of each connecting plate and the top of each baffle are fixedly connected through a first spring group.

[0010] The above-mentioned technical solution is adopted. In this solution, after pushing the button to the other end so that the circular groove on the outer surface of the valve core is aligned with the through holes on the top and bottom of the spacer sleeve, the button can leave the bottom of the baffle. At this time, the elastic force of the first spring group itself can automatically squeeze the baffle downward, so that the baffle moves to the position of one end of the button and fits with the surface of one end of the button. The baffle can be used to limit the button from one end to prevent the button from automatically moving to one end and causing the gas to be unable to pass through the spacer sleeve normally into the interior of the gas distribution pipe.

[0011] A further improvement of the technical solution of the utility model is that a sliding block is fixedly mounted on the surface of one end of each fixing frame, a sliding groove is provided inside each baffle, and each sliding block is slidably connected to each sliding groove.

[0012] The above technical solution is adopted. In this solution, the sliding trajectory of the baffle at one end of the fixed frame can be guided and limited by installing a slider, thereby ensuring that the baffle can maintain linear movement and preventing the baffle from detaching from the surface of one end of the fixed frame and failing to limit the button normally.

[0013] A further improvement of the technical solution of the utility model is that a toggle plate is fixedly installed at one end of each baffle.

[0014] By adopting the above technical solution, the contact area between the user's hand and the baffle can be enlarged by installing the toggle plate, so that the user can manually toggle the baffle upward to separate the baffle from one end of the button, thereby facilitating the movement and adjustment of the button.

[0015] A further improvement of the technical solution of the utility model is that each blocking component includes a connecting frame, each connecting frame is fixedly connected to the surface of the other end of the gas distributor block, and each connecting frame is respectively fitted with the surface of the top of each limiting screw, and a limiting plate is slidably installed on the other end of each connecting frame, and the top of each connecting frame is fixedly connected to a fixing plate, and the bottom of each fixing plate and the top of each limiting plate are fixedly connected through a second spring group.

[0016] The above-mentioned technical solution is adopted. In this solution, after the limit screw is pushed to one end so that the circular groove on the outer surface of the valve core is away from the through holes on the top and bottom of the spacer sleeve, the limit screw can leave the bottom of the limit plate. At this time, the elastic force of the second spring group itself can automatically squeeze the limit plate downward, push the limit plate to the position of the other end of the limit screw, and fit with the surface of the other end of the limit screw, so that the limit screw can be limited from the other end by the limit plate, so as to prevent the limit screw from automatically moving to the other end and causing the gas to be unable to pass through the spacer sleeve normally into the interior of the gas distribution pipe.

[0017] A further improvement of the technical solution of the utility model is that a limiting block is fixedly installed on the surface of the other end of each connecting frame, a limiting groove is arranged inside each limiting plate, and each limiting block is slidably connected to each limiting groove.

[0018] The above-mentioned technical solution is adopted. In this solution, the sliding trajectory of the limit plate at the other end of the connecting frame can be guided and limited by installing a limit block, thereby ensuring that the limit plate can maintain linear movement and preventing the limit plate from detaching from the surface of the other end of the connecting frame and failing to limit the limit screw normally.

[0019] A further improvement of the technical solution of the utility model is that a contact plate is fixedly installed on the other end of each limiting plate.

[0020] By adopting the above technical solution, the contact area between the user's hand and the limit plate can be enlarged by installing a contact plate, so that the user can manually push the baffle upward to separate the limit plate from the other end of the limit screw, thereby facilitating the movement and adjustment of the limit screw.

[0021] Due to the adoption of the above technical solution, the utility model has achieved the following technical progress compared with the prior art:

[0022] 1. The utility model provides a lightweight gas distribution mechanism which is easy to install. By pushing a button toward the other end, the circular groove on the outer surface of the valve core can be aligned with the through holes on the top and bottom of the spacer sleeve, so that the gas can enter the interior of each gas distribution pipe through the through holes of the spacer sleeve, thereby realizing gas distribution processing of the gas path; by pushing a limit screw toward one end, the circular groove on the outer surface of the valve core can be staggered with the through holes on the top and bottom of the spacer sleeve, thereby realizing blocking processing of the gas path, thereby realizing control of the on-off of the gas path, without the need for an external special on-off valve, thereby reducing the overall size of the gas distribution mechanism, reducing the space occupied by the device, and improving the aesthetics of the machine.

[0023] 2. The utility model provides a lightweight gas distribution mechanism which is easy to install. After the circular groove on the outer surface of the valve core is aligned with the through holes on the top and bottom of the spacer sleeve, the first spring group can automatically squeeze the baffle downward, and then the baffle can be used to limit the button from one end to prevent the button from automatically moving to one end and causing the gas to be unable to pass through the spacer sleeve normally into the interior of the gas distribution pipe.

[0024] 3. The utility model provides a lightweight gas distribution mechanism which is easy to install. After the circular groove on the outer surface of the valve core is moved away from the through holes on the top and bottom of the spacer sleeve, the second spring group can automatically squeeze the limit plate downward, and then the limit plate can be used to limit the limit screw from the other end to prevent the limit screw from automatically moving to the other end and causing the gas to be unable to pass through the spacer sleeve normally into the interior of the gas distribution pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The utility model will be further described below in conjunction with the accompanying drawings.

[0026] Figure 1 It is a three-dimensional diagram of the utility model;

[0027] Figure 2 A stereogram of the overall second viewing angle of the present invention;

[0028] Figure 3 It is a schematic diagram of the partial structure of the gas distribution block cross section of the utility model;

[0029] Figure 4 It is a schematic diagram of the partial structure of the spacer sleeve cross section of the utility model;

[0030] Figure 5 It is a schematic diagram of the local structure of the button in the squeezed state of the utility model;

[0031] Figure 6 It is a schematic diagram of the local structure of the limit bolt in the extrusion state of the utility model;

[0032] Figure 7 For the utility model Figure 2 The enlarged structural diagram at B in the middle;

[0033] Figure 8 For the utility model Figure 2 Enlarged structural diagram at A in the middle.

[0034] In the figure: 1. air distributor block; 101. air inlet pipe; 102. air distributor; 2. spacer; 3. button; 4. limit screw; 5. blocking component; 501. fixing frame; 502. baffle plate; 503. connecting plate; 504. first spring group; 505. slider; 506. toggle plate; 6. limit component; 601. connecting frame; 602. limit plate; 603. fixing plate; 604. second spring group; 605. limit block; 606. contact plate; 7. mounting frame; 8. valve core; 801. sealing ring. DETAILED DESCRIPTION

[0035] The present invention is further described in detail below in conjunction with the embodiments:

[0036] Example 1

[0037] like Figure 4 , Figure 5 and Figure 6As shown, the utility model provides a lightweight gas distribution mechanism that is easy to install, including a gas distribution block 1; air intake pipes 101 are fixedly installed on both sides of the gas distribution block 1, and a plurality of air distribution pipes 102 are fixedly connected to the top of the gas distribution block 1, and a plurality of valve cores 8 are fixedly installed inside the gas distribution block 1, and a plurality of circular grooves are provided on the outer surface of each valve core 8, and a spacer sleeve 2 is sleeved on the periphery of each valve core 8, and a through hole is provided on the top and bottom of each spacer sleeve 2, and the through hole on the top of each spacer sleeve 2 is interconnected with each air distribution pipe 102, and the through hole on the bottom of each spacer sleeve 2 is interconnected with each air intake pipe 101. A plurality of buttons 3 are provided at one end of the air distribution block 1, and each button 3 is fixedly connected to one end of each valve core 8, and a plurality of sealing rings 801 are attached to the periphery of each valve core 8 inside each spacer sleeve 2. A plurality of limit screws 4 are provided at the other end of the air distribution block 1, and each limit screw 4 is threadedly connected to the other end of the valve core 8, and a blocking component 5 for blocking the button 3 is provided at the top of each button 3, and a limiting component 6 for limiting the limiting screw 4 is provided at the top of each limiting screw 4. A mounting frame 7 is threadedly mounted on the other end of the air distribution block 1, and the mounting frame 7 is located on the outside of the limiting screw 4.

[0038] In this embodiment, by installing the valve core 8 and the spacer sleeve 2, the flow trajectory of the gas entering the gas distribution block 1 through the air inlet pipe 101 can be guided and limited, thereby ensuring that the gas can be discharged through each gas distribution pipe 102 respectively, and by pushing the button 3 to the other end, the valve core 8 can be synchronously pushed to move to the other end, and the limit screw 4 can be synchronously pushed to the other end, so that the circular groove on the outer surface of the valve core 8 is aligned with the through holes on the top and bottom of the spacer sleeve 2, so that the gas can enter each gas distribution pipe 10 through the through holes of the spacer sleeve 2. 2, to achieve gas separation of the gas path; by pushing the limit screw 4 toward one end, the valve core 8 can be pushed toward one end synchronously, and the button 3 can be pushed toward one end synchronously, so that the circular groove on the outer surface of the valve core 8 is away from the through holes on the top and bottom of the spacer sleeve 2, so that the position of the circular groove and the through holes are staggered, so that the gas cannot enter the interior of each gas distribution pipe 102 through the through holes of the spacer sleeve 2, thereby achieving the blocking of the gas path, thereby achieving the control of the on-off of the gas path, and there is no need to connect a special on-off valve to the gas distribution mechanism to control the closing.

[0039] Example 2

[0040] like Figure 1 , Figure 4 and Figure 8As shown, on the basis of Example 1, the utility model provides a technical solution: preferably, each blocking component 5 includes a fixing frame 501, each fixing frame 501 is fixedly connected to the surface of one end of the gas distributor block 1, and each fixing frame 501 is respectively fitted with the surface of the top of each button 3, a baffle 502 is slidably installed at one end of each fixing frame 501, a connecting plate 503 is fixedly connected to the top of each fixing frame 501, the bottom of each connecting plate 503 and the top of each baffle 502 are fixedly connected through a first spring group 504, a slider 505 is fixedly installed on the surface of one end of each fixing frame 501, a slide groove is opened inside each baffle 502, each slider 505 is respectively slidably connected to each slide groove, and a toggle plate 506 is fixedly installed at one end of each baffle 502.

[0041] In this embodiment, after the button 3 is pushed toward the other end so that the circular groove on the outer surface of the valve core 8 is aligned with the through holes on the top and bottom of the spacer sleeve 2, the button 3 can leave the bottom of the baffle 502. At this time, the elastic force of the first spring group 504 can automatically press the baffle 502 downward, so that the baffle 502 moves to the position of one end of the button 3 and fits with the surface of one end of the button 3. The baffle 502 can be used to limit the button 3 from one end to prevent the button 3 from automatically moving toward one end and causing the gas to be unable to pass through the spacer sleeve 2 and enter the gas distribution pipe 1 normally. 02; by installing the slider 505, the sliding trajectory of the baffle 502 at one end of the fixing frame 501 can be guided and limited, thereby ensuring that the baffle 502 can maintain linear movement and preventing the baffle 502 from being separated from the surface of one end of the fixing frame 501 and failing to limit the button 3 normally; by installing the toggle plate 506, the contact area between the user's hand and the baffle 502 can be expanded, so that the user can manually toggle the baffle 502 upwards to separate the baffle 502 from one end of the button 3, thereby facilitating the movement and adjustment of the button 3.

[0042] Example 3

[0043] like Figure 1 , Figure 4 and Figure 7As shown, on the basis of Example 2, the utility model provides a technical solution: preferably, each blocking component 5 includes a connecting frame 601, each connecting frame 601 is fixedly connected to the surface of the other end of the gas distributor block 1, and each connecting frame 601 is respectively fitted with the surface of the top of each limiting screw 4, and the other end of each connecting frame 601 is slidably installed with a limiting plate 602, the top of each connecting frame 601 is fixedly connected with a fixing plate 603, the bottom of each fixing plate 603 and the top of each limiting plate 602 are fixedly connected through a second spring group 604, and the surface of the other end of each connecting frame 601 is fixedly installed with a limiting block 605, and a limiting groove is provided inside each limiting plate 602, and each limiting block 605 is respectively slidably connected to each limiting groove, and the other end of each limiting plate 602 is fixedly installed with a contact plate 606.

[0044] In this embodiment, after the limit screw 4 is pushed toward one end so that the circular groove on the outer surface of the valve core 8 is away from the through holes on the top and bottom of the spacer sleeve 2, the limit screw 4 can leave the bottom of the limit plate 602. At this time, the elastic force of the second spring group 604 can automatically squeeze the limit plate 602 downward, push the limit plate 602 to the position of the other end of the limit screw 4, and fit with the surface of the other end of the limit screw 4, so that the limit plate 602 can be used to limit the limit screw 4 from the other end, so as to prevent the limit screw 4 from automatically moving toward the other end and causing the gas to be unable to pass through the spacer sleeve 2 normally into the gas distribution pipe 102; by installing the limit block 605, the sliding trajectory of the limit plate 602 at the other end of the connecting frame 601 can be guided and limited, thereby ensuring that the limit plate 602 can maintain linear movement, and can avoid the limit plate 602 from being separated from the surface of the other end of the connecting frame 601 and being unable to limit the limit screw 4 normally; by installing the contact plate 606, the contact area between the user's hand and the limit plate 602 can be expanded, so that the user can manually push the baffle 502 upwards to separate the limit plate 602 from the other end of the limit screw 4, thereby facilitating the movement and adjustment of the limit screw 4.

[0045] The following is a detailed description of the working principle of this easy-to-install lightweight air distribution mechanism.

[0046] like Figure 1-Figure 8As shown, when it is necessary to adjust the gas distribution position of the gas distribution pipe 102, the user can push the button 3 to the other end, and at the same time push the valve core 8 and the limit screw 4 to the other end, aligning the circular groove on the outer surface of the valve core 8 with the through holes on the top and bottom of the spacer sleeve 2. At this time, the first spring group 504 is used to automatically squeeze the baffle 502 downward, so that the baffle 502 moves to the surface of one end of the button 3, and the button 3 is limited to ensure that the gas can enter the interior of the corresponding gas distribution pipe 102 through the through holes of the spacer sleeve 2, thereby realizing the gas distribution of the gas path; the user can also push upward By moving the toggle plate 506, the baffle plate 502 is separated from the surface of one end of the button 3, and then the limit screw 4 is pushed toward one end, and the valve core 8 and the button 3 are pushed toward one end at the same time, so that the circular groove on the outer surface of the valve core 8 is staggered with the through holes on the top and bottom of the spacer sleeve 2. At this time, the second spring group 604 is used to automatically squeeze the limit plate 602 downward, so that the limit plate 602 moves to the surface of the other end of the limit screw 4, and the limit screw 4 is limited, so that the gas cannot pass through the through hole of the spacer sleeve 2 into the interior of the corresponding gas distribution pipe 102, thereby realizing the blocking of the gas path.

[0047] The above generally describes the present invention in detail, but it is obvious to a person skilled in the art that some modifications or improvements can be made to the present invention. Therefore, modifications or improvements that do not deviate from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. A lightweight gas distribution mechanism that is easy to install, comprising a gas distribution block (1); characterized in that: Air inlet pipes (101) are fixedly installed on both sides of the air distribution block (1), a plurality of air distribution pipes (102) are fixedly connected to the top of the air distribution block (1), a plurality of valve cores (8) are fixedly installed inside the air distribution block (1), a plurality of circular grooves are provided on the outer surface of each valve core (8), a spacer sleeve (2) is sleeved on the periphery of each valve core (8), a through hole is provided on the top and bottom of each spacer sleeve (2), the through hole on the top of each spacer sleeve (2) is interconnected with each air distribution pipe (102), the through hole on the bottom of each spacer sleeve (2) is interconnected with each air inlet pipe (101), a plurality of buttons (3) are provided at one end of the air distribution block (1), each of the The button (3) is fixedly connected to one end of each of the valve cores (8), and a plurality of sealing rings (801) are attached to the periphery of each of the valve cores (8) inside each of the spacer sleeves (2). A plurality of limit screws (4) are provided at the other end of the gas distributor block (1), and each of the limit screws (4) is threadedly connected to the other end of the valve core (8). A blocking component (5) for blocking the button (3) is provided at the top of each of the buttons (3), and a limiting component (6) for limiting the limit screw (4) is provided at the top of each of the limit screws (4). A mounting frame (7) is threadedly mounted on the other end of the gas distributor block (1), and the mounting frame (7) is located on the outside of the limit screw (4).

2. A lightweight gas distribution mechanism that is easy to install according to claim 1, characterized in that: Each of the blocking components (5) includes a fixing frame (501), each of the fixing frames (501) is fixedly connected to the surface of one end of the gas distributor (1), and each of the fixing frames (501) is respectively fitted with the surface of the top of each of the buttons (3), a baffle (502) is slidably mounted on one end of each of the fixing frames (501), a connecting plate (503) is fixedly connected to the top of each of the fixing frames (501), and the bottom of each of the connecting plates (503) is fixedly connected to the top of each of the baffles (502) via a first spring group (504).

3. A lightweight gas distribution mechanism that is easy to install according to claim 2, characterized in that: A sliding block (505) is fixedly mounted on the surface of one end of each fixing frame (501), a sliding groove is provided inside each baffle (502), and each sliding block (505) is slidably connected to each sliding groove.

4. The lightweight gas distribution mechanism that is easy to install according to claim 3 is characterized in that: A toggle plate (506) is fixedly mounted on one end of each baffle (502).

5. The lightweight gas distribution mechanism that is easy to install according to claim 1 is characterized in that: Each of the blocking components (5) includes a connecting frame (601), each of the connecting frames (601) is fixedly connected to the surface of the other end of the gas distributor block (1), and each of the connecting frames (601) is respectively fitted with the surface of the top of each of the limiting screws (4), and the other end of each of the connecting frames (601) is slidably mounted with a limiting plate (602), and the top of each of the connecting frames (601) is fixedly connected to a fixing plate (603), and the bottom of each fixing plate (603) and the top of each limiting plate (602) are fixedly connected via a second spring group (604).

6. A lightweight gas distribution mechanism that is easy to install according to claim 5, characterized in that: A limiting block (605) is fixedly mounted on the surface of the other end of each connecting frame (601), and a limiting groove is provided inside each limiting plate (602), and each limiting block (605) is slidably connected to each limiting groove.

7. A lightweight gas distribution mechanism that is easy to install according to claim 6, characterized in that: A contact plate (606) is fixedly mounted on the other end of each of the limiting plates (602).