A cleaning device for high-strength lens processing

Abstract

This utility model relates to the technical field of cleaning devices for high-strength lens processing, and more particularly to a cleaning device for high-strength lens processing, comprising a device body, a connecting mechanism, and a cleaning component disposed inside the device body. A driving component is disposed in the middle section of the device body, and a connecting component is connected to the outside of the driving component. An external water pipe introduces water, which is evenly sprayed through spray nozzles on a spray plate for initial rinsing of the lenses. The vibration force generated by the vibrating motor causes the lenses to vibrate slightly, effectively loosening stubborn impurities. In the driving component, the motor drives the rotating shaft and cross-shaped fan plate to rotate, stirring the cleaning fluid and generating water flow impact force to assist in rinsing the lenses. Combined with the filter hole design of the cleaning filter cartridge and the structure of the perforated interrupted plate, which promotes the circulation of the cleaning fluid, it can thoroughly remove oil stains, metal fragments, and other impurities from the lens surface, greatly improving the cleanliness and quality of the lenses.

Description

Technical Field

[0001] This utility model relates to the technical field of cleaning devices for high-strength lens processing, and in particular to a cleaning device for high-strength lens processing. Background Technology

[0002] In the field of modern optics, high-strength lenses are widely used in optical instruments such as eyeglasses, camera lenses, telescopes, and microscopes, as well as in high-end technology fields such as aerospace and military equipment. With continuous technological advancements, the requirements for the precision, clarity, and surface quality of high-strength lenses are becoming increasingly stringent. Cleaning is a crucial step in the manufacturing process of high-strength lenses, directly affecting their final quality and performance.

[0003] Traditional lens cleaning methods, such as manual cleaning, are not only inefficient but also struggle to guarantee consistent cleaning results. Improper operation can easily lead to scratches or residual dirt on the lens surface. Existing cleaning equipment often suffers from poor structural design and incomplete cleaning. Some cleaning devices rely solely on a single spray cleaning method, which is ineffective at removing stubborn oil, metal shavings, and other impurities from the lens surface. Furthermore, the lack of sufficient lens tumbling and multi-angle cleaning during the cleaning process results in incomplete cleaning of certain areas. Therefore, a high-strength lens processing cleaning device is proposed to address these issues. Utility Model Content

[0004] To address the shortcomings of existing technologies, this invention provides a high-strength lens cleaning device, solving the problems of traditional lens cleaning methods, such as manual cleaning, which are not only inefficient but also struggle to guarantee consistent cleaning results. Improper operation can easily lead to scratches or residual dirt on the lens surface. Furthermore, some existing cleaning equipment often suffers from unreasonable structural design and incomplete cleaning. Some cleaning equipment uses only a single spray cleaning method, which cannot effectively remove stubborn oil stains, metal shavings, and other impurities from the lens surface. During the cleaning process, it cannot achieve sufficient tumbling and multi-angle cleaning of the lens, resulting in incomplete cleaning of certain areas of the lens.

[0005] To solve the above technical problems, the present invention provides the following technical solution: a cleaning device for high-strength lens processing, comprising a device body, the device body being provided with a connecting mechanism, the connecting mechanism including a cleaning component disposed inside the device body, a driving component disposed in the middle section of the device body, and a connecting component connected to the outside of the driving component.

[0006] The connecting assembly includes a receiving plate, a cleaning filter cartridge fixedly connected to the top of the receiving plate, a hinged top plate hinged to the top of the cleaning filter cartridge, a connecting handle fixedly connected to the top of the hinged top plate, a fixing strip one fixedly connected to the inner wall of the cleaning filter cartridge, a fixing strip two fixedly connected to the top inner side of the receiving plate, a perforated interrupted plate fixedly connected to the outer inner side of the fixing strip two, a top ring frame fixedly connected to the top of the perforated interrupted plate, and a top plate sleeved on the inner top wall of the top ring frame.

[0007] A further improvement is that the cleaning assembly includes a vibration motor, an external water pipe is connected to the outer wall of the device body, a spray plate is fixedly installed on the inner wall of the device body, and spray nozzles are provided on the inner and outer walls of the spray plate.

[0008] A further improvement is that the drive assembly includes a support seat fixedly connected to the bottom of the inner wall of the device body, a motor fixedly mounted on the top of the support seat, a rotating shaft fixedly connected to the top output end of the motor, a cross-shaped fan plate fixedly connected to the outer wall of the rotating shaft, and a cross-shaped sealing plate threadedly connected to the top of the cross-shaped fan plate.

[0009] A further improvement is that the receiving plate is fixedly installed on the inner wall of the lower section of the device body, the cleaning filter cylinder has filter holes equidistantly arranged around its circumference, and the fixing strip is arranged around its circumference on the inner wall of the cleaning filter cylinder; the cleaning filter cylinder is fixedly installed on the inner wall of the lower section of the device body through the receiving plate, and the filter holes equidistantly arranged around its circumference can allow the cleaning liquid to flow fully, while the fixing strip arranged around its circumference on the inner wall of the cleaning filter cylinder can play a certain supporting and positioning role for the lens.

[0010] A further improvement is that the spray plate is circumferentially arranged on the inner wall of the device body, the spray nozzles are equidistantly arranged on the inner wall of the spray plate, and the vibrating motor is fixedly installed on the inner wall of the receiving plate; the external water pipe connected to the outer wall of the device body is connected to an external water source, and water enters the device body through the external water pipe and flows into the spray plate circumferentially arranged on the inner wall of the device body.

[0011] A further improvement is that the rotating shaft is rotatably connected to the inner wall of the receiving plate, and the cross-shaped fan plate is set in the inner cavity of the perforated interrupted plate; the rotating shaft is rotatably connected to the inner wall of the receiving plate to ensure its stable rotation, and the cross-shaped fan plate fixedly connected to the outer wall of the rotating shaft is located in the inner cavity of the perforated interrupted plate; the cross-shaped fan plate rotates under the drive of the rotating shaft, which on the one hand makes the cleaning liquid flow fully in the device body through the stirring action, thereby enhancing the cleaning effect.

[0012] A further improvement is that the fixing strip is circumferentially arranged on the top ring frame and the inner wall of the perforated plate, and the perforated plate is equidistantly arranged on the inner wall of the perforated plate, with a perforated cavity between the upper and lower parts of the perforated plate; the fixing strip is circumferentially arranged on the top ring frame and the inner wall of the perforated plate, with a perforated cavity between the upper and lower parts of the perforated plate. This structural design helps the cleaning fluid to circulate better in the cleaning filter cartridge, and at the same time can perform preliminary filtration of waste liquid, preventing larger impurities from clogging the filter holes.

[0013] By employing the above technical solution, this utility model provides a cleaning device for high-strength lens processing, which has at least the following beneficial effects:

[0014] 1. In the cleaning assembly of this utility model, an external water pipe connects to the water source, which is then evenly sprayed through the spray nozzles on the spray plate to initially rinse the lens; the vibration force generated by the vibrating motor causes the lens to vibrate slightly, effectively loosening stubborn impurities; in the drive assembly, the motor drives the rotating shaft and cross fan plate to rotate, stirring the cleaning fluid and generating water flow impact force to assist in rinsing the lens; the combination of these two, along with the filter hole design of the cleaning filter cartridge and the structure such as the perforated interrupted plate that promotes the circulation of the cleaning fluid, can thoroughly remove oil stains, metal fragments and other impurities from the lens surface. Compared with the traditional single spray cleaning method, the cleaning effect is significantly improved, greatly enhancing the cleanliness and quality of the lens.

[0015] 2. The hinged top plate of the cleaning filter cartridge of this utility model, combined with the connecting handle, allows operators to quickly open and close the filter cartridge, facilitating easy loading and unloading of the lens and improving work efficiency. The cross-shaped sealing plate is threaded onto the top of the cross-shaped fan plate, effectively preventing cleaning fluid from splashing into components such as the motor, reducing the risk of equipment failure due to liquid intrusion, and extending the service life of the equipment. The fixing strips one and two provide stable support and positioning for the lens, preventing the lens from shaking and causing surface scratches during cleaning. While ensuring the cleaning effect, it protects the lens and equipment, reducing operating costs and maintenance frequency. Attached Figure Description

[0016] The accompanying drawings, which are provided to further illustrate this application and form part of this application, illustrate exemplary embodiments of this application and are used to explain this application, but do not constitute an undue limitation of this application.

[0017] In the attached diagram:

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the inclined tilting structure of this utility model;

[0020] Figure 3 This is a schematic diagram of the inclined structure of this utility model;

[0021] Figure 4 This is a partially enlarged structural schematic diagram of the present invention.

[0022] In the diagram: 1. Device body; 2. Connecting mechanism; 21. Cleaning assembly; 211. External water pipe connecting pipe; 212. Spray plate; 213. Spray nozzle; 214. Vibrating motor; 22. Drive assembly; 221. Support seat; 222. Motor; 223. Rotating shaft; 224. Cross fan plate; 225. Cross sealing plate; 23. Connecting assembly; 231. Support plate; 232. Cleaning filter cartridge; 233. Hinged top plate; 234. Connecting handle; 235. Fixing strip one; 236. Top ring frame; 237. Top plate; 238. Perforated interrupted plate; 239. Fixing strip two. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Example 1

[0025] Traditional lens cleaning methods, such as manual cleaning, are not only inefficient but also struggle to guarantee consistent cleaning results. Improper operation can easily lead to scratches or residual dirt on the lens surface. Existing cleaning equipment often suffers from poor structural design and incomplete cleaning. Some cleaning devices use only a single spray cleaning method, which cannot effectively remove stubborn oil, metal shavings, and other impurities from the lens surface. Furthermore, the equipment cannot adequately rotate the lens or perform multi-angle cleaning during the process, resulting in incomplete cleaning of certain areas. This embodiment provides a high-strength lens processing cleaning device; please refer to... Figures 1-4An embodiment provides a cleaning device for high-strength lens processing, including a device body 1. The device body 1 is provided with a connecting mechanism 2. The connecting mechanism 2 includes a cleaning component 21 disposed inside the device body 1. A driving component 22 is disposed in the middle section of the device body 1. A connecting component 23 is connected to the outside of the driving component 22. The connecting component 23 includes a receiving plate 231. A cleaning filter cylinder 232 is fixedly connected to the top of the receiving plate 231. A hinged top plate 233 is hinged to the top of the cleaning filter cylinder 232. A connecting handle 234 is fixedly connected to the top of the hinged top plate 233. A fixing strip 235 is fixedly connected to the inner wall of the cleaning filter cylinder 232. A fixing strip 239 is fixedly connected to the top inner side of the receiving plate 231. A perforated interrupted plate 238 is fixedly connected to the outer wall of the inner side of the fixing strip 239. A top ring frame 236 is fixedly connected to the top of the perforated interrupted plate 238. A top plate 237 is sleeved on the inner wall of the top of the top ring frame 236.

[0026] In this embodiment, the high-strength lens to be cleaned is placed inside the cleaning filter cartridge 232. The cleaning filter cartridge 232 is fixedly installed on the lower inner wall of the device body 1 via the receiving plate 231. The filter holes equidistantly opened around its circumference allow the cleaning liquid to flow fully. At the same time, the fixing strip 235 is circumferentially set on the inner wall of the cleaning filter cartridge 232, which can provide a certain degree of support and positioning for the lens. The hinged top plate 233 is set on the top of the cleaning filter cartridge 232 by hinge, and the connecting handle 234 makes it easy for the operator to open and close the hinged top plate 233, thereby facilitating the insertion and removal of the lens. The structure composed of the top ring frame 236, the top plate 237, the perforated interrupted plate 238, and the fixing strip 239 further stabilizes the position of the lens in the cleaning filter cartridge 232, ensuring that the lens will not shake randomly during the cleaning process. The oscillating motor 214 installed on the inner wall of the receiving plate 231 is started, generating an oscillating force, which is transmitted through the receiving plate 231. The solution is transferred to the cleaning filter cartridge 232, causing slight vibrations on the lens during the cleaning process. This further loosens impurities on the lens surface. Combined with the rinsing action of the spray nozzle 213 and the stirring action of the drive component 22, the lens is thoroughly cleaned from all angles. During the cleaning process, the filter holes of the cleaning filter cartridge 232 allow the cleaning waste liquid containing impurities to be discharged smoothly, while the lens is retained inside the cleaning filter cartridge 232. The fixing strip 239 is circumferentially set on the inner wall of the top ring frame 236 and the perforated partition plate 238, and the perforated partition plate 238 has a perforated cavity between its upper and lower parts. This structural design helps the cleaning liquid to circulate better within the cleaning filter cartridge 232, and also provides preliminary filtration of the waste liquid, preventing larger impurities from clogging the filter holes. After cleaning, the cleaning device is turned off, and the hinged top plate 233 is opened by connecting handle 234 to remove the cleaned high-strength lens for subsequent processing or use.

[0027] Furthermore, the receiving plate 231 is fixedly installed on the inner wall of the lower section of the device body 1, the cleaning filter cylinder 232 has filter holes equidistantly circumferentially opened, the fixing strip 1 235 is circumferentially arranged on the inner wall of the cleaning filter cylinder 232; the fixing strip 239 is circumferentially arranged on the inner wall of the top ring frame 236 and the perforated partition plate 238, and the perforated partition plate 238 is equidistantly arranged on the inner wall of the perforated partition plate 238, and a perforated cavity is provided between the upper and lower parts of the perforated partition plate 238.

[0028] Furthermore, the vibration motor 214 installed on the inner wall of the receiving plate 231 is activated, generating vibration force. The vibration force is transmitted to the cleaning filter cartridge 232 through the receiving plate 231, causing the lens to vibrate slightly during the cleaning process, further loosening the impurities on the lens surface. Combined with the rinsing of the spray nozzle 213 and the stirring action of the drive component 22, the lens is thoroughly cleaned from all angles. During the cleaning process, the filter holes of the cleaning filter cartridge 232 allow the cleaning waste liquid containing impurities to be discharged smoothly, while the lens is retained inside the cleaning filter cartridge 232.

[0029] Example 2

[0030] Based on Embodiment 1, the cleaning component 21 includes a vibrating motor 214, an external water pipe 211 is connected to the outer wall of the device body 1, a spray plate 212 is fixedly installed on the inner wall of the device body 1, and a spray nozzle 213 is provided on the inner outer wall of the spray plate 212; the driving component 22 includes a receiving seat 221 fixedly connected to the bottom of the inner wall of the device body 1, a motor 222 is fixedly installed on the top of the receiving seat 221, a rotating shaft 223 is fixedly connected to the top output end of the motor 222, a cross fan plate 224 is fixedly connected to the outer wall of the rotating shaft 223, and a cross sealing plate 225 is threadedly connected to the top of the cross fan plate 224.

[0031] In this embodiment, after the cleaning device is started, the drive assembly 22 begins to work; the motor 222, which is fixedly connected to the support 221 at the bottom of the inner wall of the device body 1, is powered on and runs, and the rotating shaft 223 at the top output end of the motor 222 rotates accordingly; the rotating shaft 223 is rotatably connected to the inner wall of the support plate 231 to ensure its stable rotation, and the cross fan plate 224 fixedly connected to the outer wall of the rotating shaft 223 is located in the inner cavity of the perforated interrupted plate 238; the cross fan plate 224 rotates under the drive of the rotating shaft 223, which on the one hand makes the cleaning liquid flow fully in the device body through the stirring action, thereby enhancing the cleaning effect; on the other hand, the water flow impact force generated by its rotation can help rinse the impurities on the lens surface; the cross sealing plate 225 is connected to the top of the cross fan plate 224 by threads, which plays a sealing and protective role, preventing the cleaning liquid from splashing into the device. The device includes components such as machine 222; the cleaning assembly 21 also plays a role. The external water pipe 211, which is connected to the outer wall of the device body 1, is connected to an external water source. Water enters the device body 1 through the external water pipe 211 and flows into the spray plate 212, which is circumferentially arranged on the inner wall of the device body 1. The spray nozzles 213, which are equidistantly arranged on the inner and outer walls of the spray plate 212, spray water evenly onto the lens inside the cleaning filter cartridge 232 to perform preliminary rinsing of the lens. The vibration motor 214, which is installed on the inner wall of the receiving plate 231, starts and generates vibration force. The vibration force is transmitted to the cleaning filter cartridge 232 through the receiving plate 231, causing the lens to vibrate slightly during the cleaning process, further loosening the impurities on the lens surface. Combined with the rinsing of the spray nozzles 213 and the stirring action of the drive assembly 22, the lens is thoroughly cleaned in all directions.

[0032] Furthermore, the spray plate 212 is circumferentially arranged on the inner wall of the device body 1, the spray nozzles 213 are equidistantly arranged on the inner wall of the spray plate 212, the vibrating motor 214 is fixedly installed on the inner wall of the receiving plate 231; the rotating shaft 223 is rotatably connected to the inner wall of the receiving plate 231, and the cross fan plate 224 is arranged in the inner cavity of the perforated interrupted plate 238.

[0033] Furthermore, on the one hand, the stirring action allows the cleaning fluid to flow fully within the device body, enhancing the cleaning effect; on the other hand, the water flow impact force generated by its rotation can assist in rinsing impurities on the lens surface; the cross sealing plate 225 is threadedly connected to the top of the cross fan plate 224, serving a sealing and protective function to prevent the cleaning fluid from splashing into components such as the motor 222; the cleaning component 21 also plays a role, with the external water pipe 211 connected to the outer wall of the device body 1 to an external water source, and water enters the device body 1 through the external water pipe 211 and flows into the spray plate 212 circumferentially arranged on the inner wall of the device body 1; the spray nozzles 213, equidistantly arranged on the inner and outer walls of the spray plate 212, spray water evenly onto the lens inside the cleaning filter cartridge 232, performing preliminary rinsing of the lens.

[0034] Working principle: The high-strength lens to be cleaned is placed inside the cleaning filter cartridge 232. The cleaning filter cartridge 232 is fixedly installed on the inner wall of the lower section of the device body 1 through the receiving plate 231. The filter holes opened at equal intervals around its circumference allow the cleaning liquid to flow fully. At the same time, the fixing strip 235 is circumferentially set on the inner wall of the cleaning filter cartridge 232, which can provide a certain support and positioning for the lens. The hinged top plate 233 is set on the top of the cleaning filter cartridge 232 by hinge. The handle 234 connects to facilitate the operator to open and close the hinged top plate 233, so as to conveniently put in and take out the lens. The structure composed of the top ring frame 236, the top plate 237, the perforated interrupted plate 238 and the fixing strip 239 further stabilizes the position of the lens in the cleaning filter cartridge 232, ensuring that the lens will not shake randomly during the cleaning process.

[0035] After the cleaning device is started, the drive assembly 22 begins to work; the motor 222, which is fixedly connected to the support 221 at the bottom of the inner wall of the device body 1, is powered on and runs, and the shaft 223 at the top output end of the motor 222 rotates accordingly; the shaft 223 is rotatably connected to the inner wall of the support plate 231 to ensure its stable rotation, and the cross fan plate 224 fixedly connected to the outer wall of the shaft 223 is located in the inner cavity of the perforated interrupted plate 238; the cross fan plate 224 rotates under the drive of the shaft 223, which on the one hand makes the cleaning liquid flow fully in the device body through the stirring action, thereby enhancing the cleaning effect; on the other hand, the water flow impact force generated by its rotation can help rinse the impurities on the lens surface; the cross sealing plate 225 is connected to the top of the cross fan plate 224 by threads, which plays a sealing and protective role, preventing the cleaning liquid from splashing into the motor 222 and other components;

[0036] Meanwhile, the cleaning component 21 also plays a role. The external water pipe 211 connected to the outer wall of the device body 1 is connected to an external water source. Water enters the device body 1 through the external water pipe 211 and flows into the spray plate 212 circumferentially arranged on the inner wall of the device body 1. The spray nozzles 213, which are equidistantly arranged on the inner and outer walls of the spray plate 212, spray water evenly onto the lens inside the cleaning filter cartridge 232 to perform a preliminary rinse on the lens. The vibration motor 214 installed on the inner wall of the receiving plate 231 starts and generates vibration force. The vibration force is transmitted to the cleaning filter cartridge 232 through the receiving plate 231, causing the lens to vibrate slightly during the cleaning process, further loosening the impurities on the lens surface. Combined with the rinsing of the spray nozzles 213 and the stirring action of the drive component 22, the lens is thoroughly cleaned in all directions.

[0037] During the cleaning process, the filter holes of the cleaning filter cartridge 232 allow the cleaning waste liquid containing impurities to be discharged smoothly, while the lens is retained inside the cleaning filter cartridge 232. The fixing strip 239 is circumferentially set on the inner wall of the top ring frame 236 and the perforated partition plate 238, and the perforated partition plate 238 has a perforated cavity between its upper and lower parts. This structural design helps the cleaning liquid to circulate better in the cleaning filter cartridge 232, and at the same time, it can also perform preliminary filtration of the waste liquid to prevent larger impurities from clogging the filter holes. After cleaning is completed, the cleaning device is turned off, and the hinged top plate 233 can be opened by connecting handle 234 to remove the cleaned high-strength lens for subsequent processing or use.

[0038] It should be noted that, in this document, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0039] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-strength lens processing cleaning device comprising a device body (1), characterized in that: The device body (1) is provided with a connecting mechanism (2), the connecting mechanism (2) includes a cleaning component (21) disposed inside the device body (1), a driving component (22) is disposed in the middle section of the device body (1), and a connecting component (23) is connected to the outside of the driving component (22). The connecting assembly (23) includes a receiving plate (231), a cleaning filter cartridge (232) is fixedly connected to the top of the receiving plate (231), a hinged top plate (233) is hinged to the top of the cleaning filter cartridge (232), a connecting handle (234) is fixedly connected to the top of the hinged top plate (233), a fixing strip (235) is fixedly connected to the inner wall of the cleaning filter cartridge (232), a fixing strip (239) is fixedly connected to the top inner side of the receiving plate (231), a perforated interrupted plate (238) is fixedly connected to the outer wall of the inner side of the fixing strip (239), a top ring frame (236) is fixedly connected to the top of the perforated interrupted plate (238), and a top plate (237) is sleeved on the inner wall of the top of the top ring frame (236).

2. The cleaning device for high-strength lens processing according to claim 1, characterized in that: The cleaning assembly (21) includes a vibrating motor (214), and an external water pipe (211) is connected to the outer wall of the device body (1). A spray plate (212) is fixedly installed on the inner wall of the device body (1), and a spray nozzle (213) is provided on the inner outer wall of the spray plate (212).

3. The cleaning device for high-strength lens processing according to claim 1, characterized in that: The drive assembly (22) includes a support (221) fixedly connected to the bottom of the inner wall of the device body (1). A motor (222) is fixedly installed on the top of the support (221). A rotating shaft (223) is fixedly connected to the top output end of the motor (222). A cross fan plate (224) is fixedly connected to the outer wall of the rotating shaft (223). A cross sealing plate (225) is threadedly connected to the top of the cross fan plate (224).

4. The cleaning device for high-strength lens processing according to claim 1, characterized in that: The receiving plate (231) is fixedly installed on the inner wall of the lower section of the device body (1). The cleaning filter cylinder (232) has filter holes equidistantly arranged around its circumference. The fixing strip (235) is circumferentially arranged on the inner wall of the cleaning filter cylinder (232).

5. A cleaning device for high-strength lens processing according to claim 2, characterized in that: The spray plate (212) is circumferentially arranged on the inner wall of the device body (1), the spray nozzles (213) are equidistantly arranged on the inner wall of the spray plate (212), and the vibrating motor (214) is fixedly installed on the inner wall of the receiving plate (231).

6. The cleaning device for high-strength lens processing according to claim 3, characterized in that: The rotating shaft (223) is rotatably connected to the inner wall of the receiving plate (231), and the cross-shaped fan plate (224) is disposed in the inner cavity of the perforated interrupted plate (238).

7. The cleaning apparatus for high-strength lens processing according to claim 1, characterized in that: The fixing strip (239) is circumferentially arranged on the inner wall of the top ring frame (236) and the perforated plate (238), and the perforated plate (238) is equidistantly arranged on the inner wall of the perforated plate (238), and a perforated cavity is provided between the upper and lower parts of the perforated plate (238).

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