Gravity self-closing tuyere for air injection

Abstract

The utility model discloses a gravity self-closing tuyere for air blowing, which belongs to the technical field of high-temperature powder cleaning, and is characterized in that the end part of a splicing component is communicated with an external air source, a mounting seat is arranged above a shell, an air blowing pipe is arranged in the mounting seat in a communicated manner, and the air blowing pipe is communicated with the splicing component. The air spraying pipe is obliquely mounted on the mounting seat, the mounting seat is rotationally mounted on the shell in a limiting manner, the bottom of the mounting seat rotationally communicates with a fixed pipe, and the fixed pipe communicates with the other end of the splicing assembly; the inclined air injection direction can generate a more complex airflow mode in the pipeline, the disturbance effect of airflow is enhanced, airflow components in multiple directions are formed, the airflow interacts, the caking structure of powder can be better broken, the powder can be blown away and removed more easily, the driving assembly is arranged in the shell, and therefore the powder can be blown away and removed more easily. The driving assembly is in transmission connection with the mounting seat; and protection assemblies are arranged at the two ends of the air spraying pipe correspondingly and are installed at the two ends of the air spraying pipe in a sealed mode.

Description

Technical Field

[0001] The utility model relates to the field of high-temperature powder cleaning, in particular to a gravity self-closing air nozzle for air blowing. Background Art

[0002] In the field of high-temperature powder processing, such as chemical, metallurgical, building materials and other industries, air blowing technology plays an important role. In the process of conveying high-temperature powder, due to the different viscosity and humidity of the powder, a large amount of powder will remain inside the high-temperature powder processing equipment after operation. If it is not cleaned in time, it will not only reduce the performance and service life of the equipment, but also may affect the quality of the product. The existing cleaning device is relatively cumbersome to use. If jet equipment is used for cleaning, the powder on the inner wall of the pipe will fall before and after cleaning, and it is easy to fall into the nozzle and affect the use of the nozzle. How to invent a gravity self-closing nozzle for air blowing to improve these problems has become an urgent problem to be solved by those skilled in the art. Utility Model Content

[0003] To address these shortcomings, the present invention provides a gravity-fed, self-closing air nozzle for air injection, designed to address the problem of large amounts of residual powder inside high-temperature powder processing equipment. This residual powder increases equipment energy consumption, affects the quality uniformity of the next batch of products, and, over time, can corrode equipment components, shortening their service life.

[0004] The utility model is realized as follows: a gravity self-closing air nozzle for air blowing, comprising

[0005] A connecting pipe, the connecting pipe includes a splicing assembly, an end of the splicing assembly is connected to an external gas source, and the splicing assembly is provided in multiple groups;

[0006] A cleaning mechanism, the cleaning mechanism comprising a connecting shell, the connecting shell comprising an outer shell, a mounting seat mounted above the outer shell, an air jet pipe disposed in communication with the interior of the mounting seat, the air jet pipe being obliquely mounted on the mounting seat, the mounting seat being limitedly rotatably mounted on the outer shell, the bottom of the mounting seat being rotatably connected to a fixed pipe, the fixed pipe being connected to the other end of the splicing assembly;

[0007] A driving assembly is provided inside the housing, and the driving assembly is transmission-connected to the mounting seat;

[0008] Both ends of the air jet pipe are respectively provided with protective components, and the protective components are sealed and installed at the two ends of the air jet pipe.

[0009] In a preferred technical solution of the present invention, the communicating shell also includes a rotating tube, which is fixedly connected to the bottom of the mounting seat, the bottom of the mounting seat is a cylindrical tube, the top of the mounting seat is an inclined cylindrical tube, and the air injection tube is obliquely installed in the inclined cylindrical tube of the mounting seat.

[0010] In a preferred technical solution of the present invention, a through hole is opened at the middle bottom of the air injection tube, the through hole at the bottom of the air injection tube cooperates with the mounting seat to communicate with the rotating tube, and the bottom of the rotating tube is limitedly connected to the fixed tube.

[0011] In a preferred technical solution of the present invention, the drive assembly includes a first bearing, which is sealed and sleeved on the outside of the connection between the rotating tube and the mounting seat, the outer wall of the first bearing is sealed and connected to the top of the outer shell, the outer wall of the fixed tube is fixedly sleeved with a fixing ring, and the outer wall of the fixing ring is fixedly connected to the bottom of the outer shell.

[0012] In a preferred technical solution of the present invention, the drive assembly also includes a transmission gear, which is fixedly sleeved on the rotating tube, and an output gear is meshed on one side of the transmission gear. The bottom of the output gear is transmission-connected to a motor, and the motor is fixedly mounted on the inner wall of the outer shell.

[0013] In a preferred technical solution of the present invention, the bottom outer wall of the rotating tube is fixedly sleeved with a fixed tube, the inner wall of the fixed tube is sealingly sleeved with a second bearing, the inner wall of the second bearing is sealingly sleeved with an upper connecting ring, the bottom of the upper connecting ring is fixedly connected to the top of the fixed tube, and the rotating tube is sealed and rotatably connected to the fixed tube.

[0014] In a preferred technical solution of the present invention, the protective component includes a wind nozzle and a blocking ball. The wind nozzle is fixedly installed at both ends of the air jet tube, and the blocking balls are respectively abutted against the outer sides of the wind nozzle. A slip ring is installed on the inner wall of the wind nozzle for limited sliding, and the slip ring is fixedly connected to the blocking ball through a lead wire.

[0015] In a preferred technical solution of the present invention, a limiting ring is fixedly sleeved on the outer wall of the end of the slip ring away from the sealing ball, a limiting groove is provided on the inner wall of the air nozzle, the limiting groove is in sliding contact with the outer wall of the limiting ring, and a spring is provided at one end of the limiting ring close to the sealing ball, and the spring is in contact with the inner wall of one end of the limiting groove.

[0016] In a preferred technical solution of the present invention, an arc-shaped groove cooperating with the blocking ball is provided on the outer side of the air nozzle.

[0017] In a preferred technical solution of the present invention, the splicing assembly includes a splicing tube, one end of the splicing tube is fixedly connected to a threaded barrel, the other end of the splicing tube is limitedly rotatably connected to a lower threaded barrel, the threaded barrel is respectively threadedly connected to the lower threaded barrel and the bottom of the fixed tube, and the top of the splicing tube is fixedly sleeved with an upper nut.

[0018] The beneficial effects of the present invention are as follows: The gravity-driven, self-closing air nozzle for air injection, achieved through the above-described design, has an air jet pipe in the cleaning mechanism that is tilted and mounted on a mounting base. The mounting base is rotated by a drive assembly, enabling the air jet pipe to achieve rotary air jetting. This allows for comprehensive coverage of the inner wall of a pipeline, effectively removing residual high-temperature powder. When cleaning large conveying pipelines, the rotating air jet pipe avoids blind spots, ensuring thorough removal of powder from the inner wall and improving cleaning efficiency.

[0019] The protective component is designed to automatically seal both ends of the jet pipe when jetting stops, preventing external impurities from entering the jet pipe, ensuring the cleanliness of the jet system and extending the service life of the equipment. At the same time, when jetting is required, it can be quickly opened under the action of air pressure to ensure the normal operation of the jet function.

[0020] The first and second bearings seal the joints between the rotating tube and the mounting base, and between the rotating tube and the fixed tube, respectively, effectively preventing gas leakage while ensuring the flexible rotation of the rotating components. The outer shell protects the internal components, preventing external damage to the drive assembly and connecting pipe, ensuring the normal operation of the entire nozzle in harsh environments such as high temperature and dust. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work.

[0022] Figure 1 It is a structural diagram provided by an embodiment of the present utility model;

[0023] Figure 2 A schematic diagram of the structure of one side provided by an embodiment of the utility model;

[0024] Figure 3 A schematic diagram of the structure of a splicing assembly provided in an embodiment of the present utility model;

[0025] Figure 4 A schematic diagram of the internal structure of the cleaning mechanism provided in an embodiment of the present utility model;

[0026] Figure 5 This is a schematic diagram of the protective component structure provided by an embodiment of the present utility model.

[0027] In the figure: 100-connecting pipe; 110-splicing assembly; 111-splicing pipe; 112-threaded barrel; 113-lower threaded barrel; 114-upper nut; 200-cleaning mechanism; 210-connecting shell; 211-shell; 212-fixed pipe; 213-rotating pipe; 214-mounting seat; 215-jet pipe; 220-driving assembly; 221-transmission gear; 222-output gear; 223-motor; 224-first bearing; 225-fixing ring; 226-fixing barrel; 227-second bearing; 228-upper connecting ring; 230-protective assembly; 231-nozzle; 232-sealing ball; 233-slip ring; 234-limiting ring; 235-limiting groove. DETAILED DESCRIPTION

[0028] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0029] See also Figure 1 and Figure 2 The utility model provides a technical solution: a gravity self-closing nozzle for air blowing, comprising

[0030] The connecting pipe 100 includes a splicing assembly 110 , the end of which is connected to an external gas source. Multiple groups of splicing assemblies 110 are provided; the shells of the splicing assemblies 110 are spliced as needed.

[0031] The cleaning mechanism 200 includes a connecting shell 210, which includes an outer shell 211. A mounting base 214 is mounted above the outer shell 211. An air jet 215 is provided within the mounting base 214. The air jet 215 is tilted and mounted on the mounting base 214. The mounting base 214 is rotationally mounted on the outer shell 211. The bottom of the mounting base 214 is rotationally connected to a fixed pipe 212, which is connected to the other end of the splicing assembly 110. The tilted air jet direction can produce a more complex airflow pattern within the pipeline, enhancing the airflow disturbance. When air is sprayed onto the inner wall of the pipeline at a certain angle, it will produce reflection and refraction, forming airflow components in multiple directions. The interaction of these airflows can better break up the agglomeration structure of the powder, making the powder easier to blow away and remove.

[0032] A driving assembly 220 is provided inside the housing 211 , and the driving assembly 220 is transmission-connected to the mounting base 214 ; protective assemblies 230 are respectively provided at both ends of the jet pipe 215 , and the protective assemblies 230 are sealed and installed at both ends of the jet pipe 215 .

[0033] See also Figure 3 and Figure 4 The communication housing 210 further includes a rotating tube 213, which is fixedly mounted to the bottom of a mounting base 214. The bottom of the mounting base 214 is a cylindrical tube, and the top of the mounting base 214 is an inclined cylindrical tube. The air injection tube 215 is tilted and mounted within the inclined cylindrical tube of the mounting base 214. A through hole is formed in the middle bottom of the air injection tube 215. The through hole at the bottom of the air injection tube 215 cooperates with the mounting base 214 to communicate with the rotating tube 213. The bottom of the rotating tube 213 is in limited communication with the fixed tube 212.

[0034] The drive assembly 220 includes a first bearing 224, which is sealed and sleeved on the outside of the connection between the rotating tube 213 and the mounting seat 214. The outer wall of the first bearing 224 is sealed and connected to the top of the housing 211. A fixing ring 225 is fixedly sleeved on the outer wall of the fixed tube 212, and the outer wall of the fixing ring 225 is fixedly connected to the bottom of the housing 211. The first bearing 224 is a bearing with good sealing performance, which reduces gas leakage. The drive assembly 220 also includes a transmission gear 221, which is fixedly sleeved on the rotating tube 213. An output gear 222 is meshed with one side of the transmission gear 221. The bottom of the output gear 222 is transmission-connected to a motor 223, which is fixedly mounted on the inner wall of the housing 211. The motor 223 is electrically connected to a single-chip microcomputer, which remotely controls the forward and reverse rotation of the motor 223 and the speed of the motor 223.

[0035] The bottom outer wall of the rotating tube 213 is fixedly sleeved with a fixed tube 226, the inner wall of the fixed tube 226 is sealed with a second bearing 227, the inner wall of the second bearing 227 is sealed with an upper connecting ring 228, the bottom of the upper connecting ring 228 is fixedly connected to the top of the fixed tube 212, the rotating tube 213 is sealed and rotatably connected to the fixed tube 212, and the second bearing 227 is a bearing with good sealing performance to reduce gas overflow.

[0036] See also Figure 3 and Figure 5 The protective component 230 includes a nozzle 231 and a blocking ball 232. The nozzle 231 is fixedly installed at both ends of the air jet tube 215, and the blocking ball 232 is respectively abutted against the outer side of the nozzle 231. A slip ring 233 is installed on the inner wall of the nozzle 231 for limited sliding. The slip ring 233 is fixedly connected to the blocking ball 232 by a lead wire. A limit ring 234 is fixedly mounted on the outer wall of the end of the slip ring 233 away from the blocking ball 232. A limit groove 235 is provided on the inner wall of the air nozzle 231. The limit groove 235 slides and abuts against the outer wall of the limit ring 234. A spring is provided on the end of the limit ring 234 near the blocking ball 232. The spring abuts against the inner wall of one end of the limit groove 235. When gas rushes into the air injection pipe 215, the blocking ball 232 is blown out. At this time, the blocking ball 232 pulls the slip ring 233 and cooperates with the limit ring 234 to compress the spring. At this time, the blocking ball 232 is placed outside the air nozzle 231. When there is no gas inside, the spring pushes the slip ring 233 inward, pulling the blocking ball 232 to continue blocking and prevent powder from entering. The outer side of the air nozzle 231 is provided with an arc-shaped groove that cooperates with the blocking ball 232.

[0037] See also Figure 3 The splicing assembly 110 includes a splicing tube 111, one end of the splicing tube 111 is fixedly connected to a threaded barrel 112, and the other end of the splicing tube 111 is limitedly rotatably connected to a lower threaded barrel 113, and the threaded barrel 112 is respectively threadedly connected to the lower threaded barrel 113 and the bottom of the fixed tube 212, and the top of the splicing tube 111 is fixedly sleeved with an upper nut 114, which is used to extend the handheld part to facilitate cleaning in deeper places.

[0038] Working Principle: Air from an external air source enters the cleaning mechanism 200 through the splicing assembly 110 of the connecting pipe 100. The air then passes through the splicing pipe 111, the fixed pipe 212, and the rotating pipe 213, ultimately entering the air jet pipe 215. The air jet pipe 215 is tilted and mounted on the mounting base 214. The mounting base 214 can be rotated within the housing 211, allowing the air jet pipe 215 to rotate under the control of the drive assembly 220. When the motor 223 is started, the motor 223 drives the output gear 222 to rotate, and the output gear 222 engages the transmission gear 221, thereby rotating the rotating pipe 213 and the mounting base 214 fixedly mounted on the rotating pipe 213 together. This enables the air jet from the air jet pipe 215 to blow off the powder on the inner wall of the pipe.

[0039] When airflow stops, the blocking ball 232 of the protective assembly 230, driven by gravity and a spring, abuts against the arc-shaped groove outside the nozzle 231, sealing both ends of the airflow tube 215 and preventing the ingress of foreign matter. When airflow resumes, the air pressure within the airflow tube 215 increases, pushing the blocking ball 232 and the slip ring 233 away from the nozzle 231, overcoming the spring force and enabling airflow. When airflow stops, the air pressure decreases, and the spring pushes the blocking ball 232 and slip ring 233 to reseal the nozzle 231.

[0040] The splicing pipes 111 of the splicing assembly 110 can be connected according to actual needs. Through the threaded connection of the threaded barrel 112 and the lower threaded barrel 113, multiple splicing pipes 111 can be easily spliced together to adjust the length of the connecting pipe 100 for penetrating pipelines of different depths.

[0041] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A gravity self-closing air nozzle for air blowing, characterized in that: include A connecting pipe, the connecting pipe includes a splicing assembly, an end of the splicing assembly is connected to an external gas source, and the splicing assembly is provided in multiple groups; A cleaning mechanism, the cleaning mechanism comprising a connecting shell, the connecting shell comprising an outer shell, a mounting seat mounted above the outer shell, an air jet pipe disposed in communication with the interior of the mounting seat, the air jet pipe being obliquely mounted on the mounting seat, the mounting seat being limitedly rotatably mounted on the outer shell, the bottom of the mounting seat being rotatably connected to a fixed pipe, the fixed pipe being connected to the other end of the splicing assembly; A driving assembly is provided inside the housing, and the driving assembly is transmission-connected to the mounting seat; Both ends of the air jet pipe are respectively provided with protective components, and the protective components are sealed and installed at the two ends of the air jet pipe.

2. A gravity self-closing air nozzle for air blowing according to claim 1, characterized in that: The communicating shell further comprises a rotating tube, which is fixedly connected to the bottom of the mounting seat. The bottom of the mounting seat is a cylindrical tube, the top of the mounting seat is an inclined cylindrical tube, and the air injection tube is obliquely installed in the inclined cylindrical tube of the mounting seat.

3. A gravity self-closing air nozzle for air blowing according to claim 2, characterized in that: A through hole is provided at the middle bottom of the air injection tube. The through hole at the bottom of the air injection tube cooperates with the mounting seat to communicate with the rotating tube. The bottom of the rotating tube is in position-limiting communication with the fixed tube.

4. A gravity self-closing air nozzle for air blowing according to claim 2, characterized in that: The drive assembly includes a first bearing, which is sealed and sleeved on the outside of the connection between the rotating tube and the mounting seat. The outer wall of the first bearing is sealed and connected to the top of the outer shell. A fixing ring is fixedly sleeved on the outer wall of the fixed tube, and the outer wall of the fixing ring is fixedly connected to the bottom of the outer shell.

5. A gravity self-closing air nozzle for air blowing according to claim 4, characterized in that: The driving assembly also includes a transmission gear, which is fixedly sleeved on the rotating tube. An output gear is meshed on one side of the transmission gear. The bottom of the output gear is transmission-connected to a motor, and the motor is fixedly mounted on the inner wall of the shell.

6. A gravity self-closing air nozzle for air blowing according to claim 4, characterized in that: The bottom outer wall of the rotating tube is fixedly sleeved with a fixed tube, the inner wall of the fixed tube is sealed with a second bearing, the inner wall of the second bearing is sealed with an upper connecting ring, the bottom of the upper connecting ring is fixedly connected to the top of the fixed tube, and the rotating tube is sealed and rotatably connected to the fixed tube.

7. The gravity self-closing nozzle for air blowing according to claim 1, characterized in that: The protective component includes a wind nozzle and a blocking ball. The wind nozzle is fixedly installed at both ends of the air jet tube, and the blocking balls are respectively abutted against the outer sides of the wind nozzle. A slip ring is installed on the inner wall of the wind nozzle for limited sliding. The slip ring is fixedly connected to the blocking ball with a lead wire.

8. The gravity self-closing nozzle for air blowing according to claim 7, characterized in that: A limiting ring is fixedly sleeved on the outer wall of the end of the slip ring away from the sealing ball, a limiting groove is provided on the inner wall of the air nozzle, and the limiting groove is in sliding contact with the outer wall of the limiting ring. A spring is provided at the end of the limiting ring close to the sealing ball, and the spring is in contact with the inner wall of one end of the limiting groove.

9. The gravity self-closing nozzle for air blowing according to claim 7, characterized in that: An arc-shaped groove matching with the blocking ball is provided on the outer side of the air nozzle.

10. The gravity self-closing nozzle for air blowing according to claim 1, characterized in that: The splicing assembly includes a splicing tube, one end of which is fixedly connected to a threaded barrel, and the other end of which is limitedly rotatably connected to a lower threaded barrel, the threaded barrel being respectively threadedly connected to the lower threaded barrel and the bottom of the fixed pipe, and an upper nut being fixedly sleeved on the top of the splicing tube.

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