Quick release valve

CN224622170UActive Publication Date: 2026-08-11ZHONGSHAN ELIN PACKAGING MACHINERY
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-09-09
Publication Date
2026-08-11

AI Technical Summary

Technical Problem

其中,包装机需频繁清洗维护,而传统翻板式阀门,其密封轴承组件的安装座通过多个螺栓固定到包装机上,驱动装置与阀板支撑轴之间也通过螺栓固定连接,存在拆解耗时长、拆装维护低效的问题,影响设备综合生产效率

Benefits of technology

[0005] The quick-release valve according to the embodiments of the present utility model has at least the following beneficial effects: The quick-release valve provided by the present utility model can be disassembled and assembled by operating the first clamping member and the second clamping member to cooperate or disengage, inserting the support shaft into other parts or pulling it out from other parts. The disassembly and assembly process is simple and convenient, which can reduce the disassembly and assembly time, improve the disassembly and assembly maintenance efficiency, and ensure the overall production efficiency of production equipment.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224622170U_ABST
    Figure CN224622170U_ABST
Patent Text Reader

Abstract

This utility model discloses a quick-release valve, including a sealing mounting assembly, a valve plate, a drive device, and a support shaft. The valve plate is located between two sealing mounting assemblies. The drive device is located on the side of the sealing mounting assembly opposite to the valve plate, and drives the valve plate to rotate via a transmission component. The support shaft is detachably inserted through the two sealing mounting assemblies, the valve plate, and the transmission component. A first clamping member is provided at the first end of the support shaft, and a second clamping member is provided at the second end. The first and second clamping members can cooperate to clamp the two sealing mounting assemblies, and can be disengaged to allow the support shaft to be disassembled. The quick-release valve provided by this utility model can reduce disassembly and assembly time and improve disassembly and maintenance efficiency.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of valve technology, and in particular to a quick-release valve. Background Technology

[0002] In the food powder industry, packaging machines use flap valves to control the input and output of powder. The valve plate of the flap valve is set inside the powder conveying channel to control the opening and closing of the channel. To achieve a seal, sealing bearing assemblies are usually installed at both ends of the valve plate support shaft, located outside the powder conveying channel. Packaging machines require frequent cleaning and maintenance. Traditional flap valves use multiple bolts to fix the mounting base of the sealing bearing assembly to the packaging machine, and the drive unit is also bolted to the valve plate support shaft. This results in time-consuming disassembly and inefficient maintenance, impacting the overall production efficiency of the equipment. Utility Model Content

[0003] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a quick-release valve, which can reduce disassembly and assembly time and improve disassembly and maintenance efficiency.

[0004] A quick-release valve according to an embodiment of the present invention includes a sealing mounting assembly, a valve plate, a driving device, and a support shaft. The valve plate is located between two sealing mounting assemblies. The driving device is located on the side of the sealing mounting assembly opposite to the valve plate, and the driving device drives the valve plate to rotate via a transmission component. The support shaft is detachably inserted through the two sealing mounting assemblies, the valve plate, and the transmission component. A first clamping member is provided at a first end of the support shaft, and a second clamping member is provided at a second end of the support shaft. The first clamping member and the second clamping member can cooperate with each other to clamp the two sealing mounting assemblies, and the first clamping member and the second clamping member can be disengaged to allow the support shaft to be disassembled.

[0005] The quick-release valve according to the embodiments of the present utility model has at least the following beneficial effects: The quick-release valve provided by the present utility model can be disassembled and assembled by operating the first clamping member and the second clamping member to cooperate or disengage, inserting the support shaft into other parts or pulling it out from other parts. The disassembly and assembly process is simple and convenient, which can reduce the disassembly and assembly time, improve the disassembly and assembly maintenance efficiency, and ensure the overall production efficiency of production equipment.

[0006] According to some embodiments of the present invention, the second clamping member is configured as a knob, which is detachably screwed to the support shaft.

[0007] According to some embodiments of the present invention, a first thrust bearing is abutted at one end of the first clamping member near the valve plate, and a second thrust bearing is abutted at one end of the second clamping member near the valve plate. The support shaft passes through the first thrust bearing and the second thrust bearing. The first clamping member and the second clamping member clamp the sealing installation assembly by cooperating with each other through the first thrust bearing and the second thrust bearing.

[0008] According to some embodiments of the present invention, the first clamping member is rotatably mounted on one end of the support shaft, and an eccentric cam is provided on the first clamping member, the eccentric cam being used to abut against the first thrust bearing.

[0009] According to some embodiments of the present invention, both the driving device and the transmission component are provided in two forms, and the two sealing mounting assemblies are located between the two transmission components.

[0010] According to some embodiments of the present invention, the driving device includes a cylinder, one end of which is provided with a hinge for external rotational connection, and the other end of which is rotatably connected to the transmission component.

[0011] According to some embodiments of this utility model, two valve plates are provided, and a bushing is provided at one end of each valve plate that is opposite to each other. The support shaft passes through the bushing, and two sealing mounting components are fitted onto the two bushings in a corresponding manner. The two bushings are inserted into the two transmission components in a corresponding manner so that the transmission components can drive the corresponding bushings to rotate. The two transmission components are located between the first thrust bearing and the second thrust bearing.

[0012] According to some embodiments of the present invention, a rolling bearing is installed at the end of the sealing mounting assembly opposite to the valve plate, and the bushing passes through the rolling bearing.

[0013] According to some embodiments of the present invention, a shaft-side limiting sleeve is abutted between the transmission component and the corresponding rolling bearing, and the bushing passes through the shaft-side limiting sleeve.

[0014] According to some embodiments of the present invention, the sealing mounting assembly includes an annular mounting base and two shaft seals, one of which is disposed in the end of the mounting base near the valve plate, and the other is disposed in the mounting base. The mounting base is provided with an inflation chamber and an inflation port communicating with the inflation chamber. The inflation chamber is located between the two shaft seals, and the support shaft passes through the inflation chamber and the two shaft seals.

[0015] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0016] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0017] Figure 1 This is a schematic diagram of a quick-release valve according to an embodiment of the present utility model;

[0018] Figure 2 for Figure 1 A cross-sectional view of a quick-release valve is shown.

[0019] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0020] Figure 4 for Figure 2 Enlarged view of point B in the middle;

[0021] Figure 5 for Figure 1 A schematic diagram of the first clamping element of the quick-release valve is shown;

[0022] Figure 6 for Figure 1 The diagram shown illustrates the application of a quick-release valve in a packaging machine.

[0023] Figure label:

[0024] Sealing mounting assembly 100, mounting base 110, inflation chamber 111, inflation interface 112, limiting hole 113, shaft seal 120, valve plate 200, bushing 210, drive device 310, cylinder 311, hinge part 312, transmission component 320, support shaft 400, first clamping component 510, eccentric cam 511, second clamping component 520, first thrust bearing 610, second thrust bearing 620, rolling bearing 710, shaft side limiting sleeve 720. Detailed Implementation

[0025] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0026] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0027] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" or "second" is used in the description, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0028] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0029] Reference Figure 1 and Figure 2 According to an embodiment of the present invention, a quick-release valve includes a sealing mounting assembly 100, a valve plate 200, a driving device 310, and a support shaft 400. The valve plate 200 is located between two sealing mounting assemblies 100. The driving device 310 is located on the side of the sealing mounting assembly 100 away from the valve plate 200, and the driving device 310 drives the valve plate 200 to rotate through a transmission member 320. The support shaft 400 is detachably inserted through the two sealing mounting assemblies 100, the valve plate 200, and the transmission member 320. A first clamping member 510 is provided at the first end of the support shaft 400, and a second clamping member 520 is provided at the second end of the support shaft 400. The first clamping member 510 and the second clamping member 520 can cooperate with each other to clamp the two sealing mounting assemblies 100, and the first clamping member 510 and the second clamping member 520 can be disengaged to allow the support shaft 400 to be disassembled.

[0030] When the aforementioned quick-release valve is applied to a powder packaging machine, the valve plate 200 is installed in the powder conveying channel of the packaging machine, such as inside the hopper. Two sealing mounting components 100 are correspondingly arranged on opposite sides of the powder conveying channel. The drive device 310 is located on the outside of the powder conveying channel. The support shaft 400 passes through the sealing mounting components 100, the valve plate 200, and the transmission component 320. The first clamping member 510 and the second clamping member 520 cooperate to clamp the two sealing mounting components 100, so that the two sealing mounting components 100 can abut against the outer wall of the powder conveying channel, thereby achieving a seal. During installation, the support shaft 400 can be inserted through the transmission component 320, one of the sealing mounting components 100, one side outer wall of the powder conveying channel, the valve plate 200 in the split conveying channel, and the other sealing mounting component 100. Then, the two sealing mounting components 100 are clamped by the cooperation of the first clamping member 510 and the second clamping member 520, thereby completing the installation of the quick-release valve. During disassembly, the cooperation of the first clamping member 510 and the second clamping member 520 is released, and then the support shaft 400 is pulled out from the other components to complete the disassembly.

[0031] Therefore, the quick-release valve provided by this utility model can be disassembled and assembled simply by operating the first clamping member 510 and the second clamping member 520 to cooperate or disengage, or by inserting the support shaft 400 into or pulling it out of other components. The disassembly and assembly process is simple and convenient, reducing disassembly and assembly time, improving disassembly and maintenance efficiency, and ensuring the overall production efficiency of the production equipment. In addition, the quick-release valve provided by this utility model completes the installation of the valve plate 200 by inserting the support shaft 400 into the valve plate 200. The sealing component is located outside the powder conveying channel. Thus, the part of the quick-release valve located inside the powder conveying channel does not contain screws, nuts, or other components, eliminating the risk of components falling into the powder conveying channel during equipment operation, and ensuring equipment safety and product safety and hygiene.

[0032] It should be noted that the above-mentioned quick-release valve can also be applied to other equipment that requires the use of flap valves, such as some equipment that mixes multiple powders or granules for production. The quick-release valve can be used to control the input of powders or granules. For specific settings, please refer to the setting method of the quick-release valve in the powder packaging machine.

[0033] Reference Figure 1 , Figure 2 and Figure 4According to some embodiments of this utility model, the second clamping member 520 is configured as a knob, which is detachably screwed to the support shaft 400. With the above configuration, the second clamping member 520 and the support shaft 400 are detachably connected. By disassembling the second clamping member 520, the cooperation between the second clamping member 520 and the first clamping member 510 can be released, and the support shaft 400 can be removed from the first clamping member 510. The second clamping member is easy and simple to assemble and disassemble. In addition, the clamping force can be increased or decreased by rotating the second clamping member 520.

[0034] When the valve plate 200 rotates, the clamping force between the first clamping member 510 and the second clamping member 520 and the sealing mounting assembly 100 generates friction, which hinders the rotation of the valve plate 200. Therefore, referring to... Figures 2 to 4 According to some embodiments of the present invention, a first thrust bearing 610 is abutted at one end of the first clamping member 510 near the valve plate 200, and a second thrust bearing 620 is abutted at one end of the second clamping member 520 near the valve plate 200. A support shaft 400 passes through the first thrust bearing 610 and the second thrust bearing 620. The first clamping member 510 and the second clamping member 520 clamp the sealing mounting assembly 100 by cooperating with each other through the first thrust bearing 610 and the second thrust bearing 620. Thus, while effectively clamping the sealing mounting assembly 100, the frictional force generated by the first clamping member 510 and the second clamping member 520 clamping the sealing mounting assembly 100 during the rotation of the valve plate 200 is reduced, thereby reducing the resistance to the rotation of the valve plate 200.

[0035] Reference Figure 2 , Figure 3 and Figure 5 According to some embodiments of this utility model, the first clamping member 510 is rotatably mounted on one end of the support shaft 400. An eccentric cam 511 is provided on the first clamping member 510, which abuts against the first thrust bearing 610. Thus, the first clamping member 510 has a handle structure with an eccentric cam 511. During the disassembly of the quick-release valve, after removing the knob, the first clamping member 510 can be rotated to allow the support shaft 400 to be easily pushed a certain distance towards the first clamping member 510 via the abutting engagement of the eccentric cam 511 and the first thrust bearing 610, thereby facilitating the subsequent removal of the support shaft 400.

[0036] In the specific implementation process, the first clamping member 510 is rotatably mounted on the support shaft 400 via a pin shaft, wherein the pin shaft can be set to be detachable or non-detachable.

[0037] It should be noted that the first clamping member 510 and the second clamping member 520 described above can also be configured in other ways. For example, in some embodiments, both the first clamping member 510 and the second clamping member 520 can be configured as knobs; in other embodiments, when the first clamping member 510 is configured with a rotating handle structure with an eccentric cam 511, the second clamping member 520 can also be configured with a rotating handle structure with an eccentric cam 511. The sizes of the second clamping member 520 and the support shaft 400 should be designed appropriately so that when the second clamping member 520 is rotated to a position parallel to the axis of the support shaft 400, the second clamping member 520 is within the axial projection range of the support shaft 400. At this time, the second clamping member 520 is disengaged from the first clamping member 510, and the support shaft 400 is allowed to be pulled out from the first clamping member 510.

[0038] Reference Figure 1 and Figure 2 According to some embodiments of this utility model, two drive devices 310 and two transmission components 320 are provided, and two sealing mounting assemblies 100 are located between the two transmission components 320. With the above arrangement, the valve plate 200 can be driven to rotate from both sides by the two drive devices 310, so that the valve plate 200 rotates more smoothly.

[0039] Reference Figure 1 and Figure 6 According to some embodiments of this utility model, the driving device 310 includes a cylinder 311. One end of the cylinder 311 is provided with a hinge portion 312 for external rotational connection, and the other end of the cylinder 311 is rotatably connected to the transmission component 320. Thus, the extension and retraction of the cylinder 311 can drive the transmission component 320 to rotate the valve plate 200. When the quick-release valve is applied to a powder packaging machine, the cylinder 311 can be rotatably installed on the powder packaging machine through the hinge portion 312. During the disassembly and assembly of the quick-release valve, the cylinder 311 and the transmission component 320 can swing without disassembling the cylinder 311 or the rotational connection between the cylinder 311 and the transmission component 320, making disassembly and assembly convenient and simple.

[0040] It is conceivable that in other embodiments, the drive device 310 described above may also adopt other configurations. For example, the drive device 310 may include a servo motor, and an output gear may be provided on the output shaft of the servo motor. In this case, the transmission component 320 may be provided with teeth to mesh with the output gear for transmission. The transmission component 320 and the output gear are not connected, making disassembly and assembly convenient and simple.

[0041] Reference Figures 1 to 4According to some embodiments of this utility model, two valve plates 200 are provided. A bushing 210 is provided at one end of each valve plate 200 facing away from each other. A support shaft 400 passes through the bushing 210. Two sealing mounting components 100 are correspondingly fitted onto the two bushings 210. The two bushings 210 are correspondingly inserted into two transmission components 320 so that the transmission components 320 can drive the corresponding bushing 210 to rotate. The two transmission components 320 are located between the first thrust bearing 610 and the second thrust bearing 620. The transmission components 320 abut against the corresponding thrust bearing and the sealing mounting component 100. Thus, the first clamping member 510 and the second clamping member 520 clamp the two transmission components 320 and the two sealing mounting components 100 through the two thrust bearings. The bushing 210 can be configured to rotate relative to the support shaft 400. Therefore, the two driving devices 310 can each drive one valve plate 200 to rotate, achieving independent rotation of the two valve plates 200.

[0042] According to some embodiments of the present invention, the quick-release valve can be configured such that the transmission component 320 can rotate relative to the sealing mounting assembly 100. Of course, it can also be configured such that the transmission component 320 can drive the sealing mounting assembly 100 to rotate.

[0043] In the specific implementation process, a rolling bearing 710 is installed at the end of the sealing mounting assembly 100 away from the valve plate 200, and the bushing 210 passes through the rolling bearing 710. The setting of the rolling bearing 710 allows the sealing mounting assembly 100 and the bushing 210 to rotate relative to each other more flexibly.

[0044] Reference Figures 2 to 4 According to some embodiments of this utility model, a shaft-side limiting sleeve 720 abuts against the corresponding rolling bearing 710, and a bushing 210 passes through the shaft-side limiting sleeve 720. The shaft-side limiting sleeve 720 allows the transmission member 320 to abut against the rolling bearing 710, thereby restricting the rolling bearing 710 from sliding axially away from the mounting base 110 and allowing relative rotation between the rolling bearing 710 and the transmission member 320.

[0045] Reference Figures 2 to 4According to some embodiments of this utility model, the sealing mounting assembly 100 includes an annular mounting base 110 and two shaft seals 120. Each shaft seal 120 is an annular sealing component for sealing a shaft. One shaft seal 120 is located within the mounting base 110 near the valve plate 200, and the other shaft seal 120 is located within the mounting base 110. The mounting base 110 has an inflation chamber 111 and an inflation port 112 communicating with the inflation chamber 111. The inflation chamber 111 is located between the two shaft seals 120, and a support shaft 400 passes through the inflation chamber 111 and the two shaft seals 120. With this configuration, compressed gas can be injected into the inflation chamber 111 through the inflation port 112, creating a slightly positive pressure within the inflation chamber 111. Therefore, the entire sealing mounting assembly 100 can form an effective dynamic seal, achieving zero powder leakage.

[0046] The two shaft seals 120 are assembled with the mounting base 110 to form a sealing mounting assembly 100. During the disassembly and assembly of the quick-release valve, the sealing mounting assembly 100 can be disassembled and assembled as a whole, simplifying the disassembly and assembly process.

[0047] Reference Figure 1 and Figure 6 In the specific implementation process, the mounting base 110 is provided with a limiting hole 113 for insertion with an external structure. A limiting protrusion can be provided on the packaging machine. The limiting protrusion is inserted into the limiting hole 113 to restrict the rotation of the mounting base 110 relative to the packaging machine.

[0048] When the aforementioned quick-release valve is applied to a powder packaging machine, the specific installation process of the quick-release valve may include: Installation step 1, firstly, placing the first valve plate 200 into the powder conveying channel, then inserting the support shaft 400 into the first valve plate 200 from one side of the powder conveying channel, then placing the second valve plate 200 into the powder conveying channel, and finally passing the support shaft 400 through the second valve plate 200 and the other side wall of the powder conveying channel; Installation step 2, completing the installation of the sealing mounting assembly 100, transmission component 320, or other components on one end of the support shaft 400; Installation step 3, completing the installation of the sealing mounting assembly 100, transmission component 320, or other components on the other end of the support shaft 400; Installation step 4, completing the clamping of the sealing mounting assembly 100 and other components by the first clamping component 510 and the second clamping component 520. In the specific implementation process, you can complete installation step 1 first, and then complete installation steps 2 to 4. Installation steps 2 and 3 can be carried out simultaneously or in stages; or, you can complete installation step 2 first, then complete installation steps 1 and 3, and finally complete installation step 4.

[0049] When the aforementioned quick-release valve is applied to a powder packaging machine, the specific disassembly process may include: disassembly step 1, releasing the clamping engagement between the first clamping member 510 and the second clamping member 520 and removing the second clamping member 520; disassembly step 2, detaching the sealing mounting assembly 100, transmission member 320, or other components on one end of the support shaft 400 from the support shaft 400; disassembly step 3, detaching the sealing mounting assembly 100, transmission member 320, or other components on the other end of the support shaft 400 from the support shaft 400; disassembly step 4, detaching the support shaft 400 from the two valve plates 200 and removing the support shaft 400 from the powder conveying channel. In specific implementation, disassembly steps 2 and 3 can be performed separately or simultaneously. Furthermore, in some embodiments, disassembly steps 2, 4, and 3 can be completed sequentially by pulling the support shaft 400.

[0050] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0051] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A quick-release valve, characterized in that, include: Two sealed mounting assemblies (100); A valve plate (200) is located between the two sealing mounting assemblies (100); A drive device (310) is located on the side of the sealing mounting assembly (100) away from the valve plate (200), and the drive device (310) drives the valve plate (200) to rotate through a transmission component (320); A support shaft (400) is detachably inserted through the two sealing mounting assemblies (100), the valve plate (200), and the transmission member (320). A first clamping member (510) is provided at the first end of the support shaft (400), and a second clamping member (520) is provided at the second end of the support shaft (400). The first clamping member (510) and the second clamping member (520) can cooperate with each other to clamp the two sealing mounting assemblies (100), and the first clamping member (510) and the second clamping member (520) can be disengaged to allow the support shaft (400) to be disassembled.

2. The quick-release valve according to claim 1, characterized in that, The second clamping member (520) is configured as a knob, which is detachably screwed to the support shaft (400).

3. A quick-release valve according to claim 2, characterized in that, The first clamping member (510) is abutted against a first thrust bearing (610) at one end near the valve plate (200), and the second clamping member (520) is abutted against a second thrust bearing (620) at one end near the valve plate (200). The support shaft (400) passes through the first thrust bearing (610) and the second thrust bearing (620). The first clamping member (510) and the second clamping member (520) clamp the sealing installation assembly (100) by cooperating with each other through the first thrust bearing (610) and the second thrust bearing (620).

4. A quick-release valve according to claim 3, characterized in that, The first clamping member (510) is rotatably mounted on one end of the support shaft (400). An eccentric cam (511) is provided on the first clamping member (510), and the eccentric cam (511) is used to abut against the first thrust bearing (610).

5. A quick-release valve according to claim 3, characterized in that, Two drive devices (310) and two transmission components (320) are provided, and two sealed mounting assemblies (100) are located between the two transmission components (320).

6. A quick-release valve according to claim 1, characterized in that, The drive device (310) includes a cylinder (311), one end of which is provided with a hinge (312) for external rotational connection, and the other end of which is rotatably connected to the transmission member (320).

7. A quick-release valve according to claim 5, characterized in that, Two valve plates (200) are provided. A bushing (210) is provided at one end of each valve plate (200) that is opposite to each other. The support shaft (400) passes through the bushing (210). Two sealing mounting components (100) are fitted onto the two bushings (210) one by one. The two bushings (210) are inserted into the two transmission components (320) one by one so that the transmission components (320) can drive the corresponding bushings (210) to rotate. The two transmission components (320) are located between the first thrust bearing (610) and the second thrust bearing (620).

8. A quick-release valve according to claim 7, characterized in that, The sealing mounting assembly (100) is equipped with a rolling bearing (710) at the end opposite to the valve plate (200), and the bushing (210) passes through the rolling bearing (710).

9. A quick-release valve according to claim 8, characterized in that, A shaft-side limiting sleeve (720) abuts against the corresponding rolling bearing (710), and the bushing (210) passes through the shaft-side limiting sleeve (720).

10. A quick-release valve according to any one of claims 1 to 9, characterized in that, The sealing mounting assembly (100) includes an annular mounting base (110) and two shaft seals (120). One of the shaft seals (120) is located in the end of the mounting base (110) near the valve plate (200), and the other shaft seal (120) is located in the mounting base (110). The mounting base (110) is provided with an inflation chamber (111) and an inflation port (112) communicating with the inflation chamber (111). The inflation chamber (111) is located between the two shaft seals (120), and the support shaft (400) passes through the inflation chamber (111) and the two shaft seals (120).