High-sealing noise reduction type anti-explosion vortex fan

Abstract

The invention relates to the field of industrial ventilation equipment, and discloses a high-sealing noise reduction type anti-explosion vortex fan which comprises a driving pump, one side of the driving pump is fixedly connected with a sealing air cavity shell, a driving shaft of the driving pump extends into an inner cavity of the sealing air cavity shell to be fixedly connected with an impeller, and the top of the driving pump is fixedly connected with a power connector. The driving pump is electrically connected with the power connector, air outlet cavities are fixedly connected to the lower ends of the two sides of the driving pump, one ends of the two air outlet cavities are fixedly connected to the lower end of the side face of the sealed air cavity shell, sealed connecting devices are arranged on the other sides of the two air outlet cavities, and a noise reduction base is fixedly connected to the bottom of the driving pump; according to the anti-explosion vortex fan, through the combined design of the combination of the composite bolts and the gaskets and the combined design of the insertion rods, the fixing stability and the fastening force are enhanced, the connection is simplified through the sealing connection devices, the sealing performance is improved, and the safety of personnel and the environment is guaranteed.

Description

Technical Field

[0001] The invention relates to the field of industrial ventilation equipment, in particular to a high-sealing and noise-reducing explosion-proof vortex fan. Background Art

[0002] A fan, also known as a blower, is a customary abbreviation for a gas compression and gas delivery machine. It is a driven fluid machine that can convert mechanical energy into the pressure energy and kinetic energy of the gas. The fan drives the impeller to rotate through the internal motor, transferring the mechanical energy to the air or gas, so that the gas gains kinetic energy and flows. Depending on the type of fan, the airflow direction and the way of generating pressure are also different. Among them, the high-sealing and noise-reducing explosion-proof vortex fan is an advanced ventilation equipment designed to meet the needs of efficient, safe and convenient operation. This fan not only combines the high efficiency and energy saving, stable operation and other characteristics of the vortex fan, but also pays special attention to its sealing performance, noise reduction effect and explosion-proof safety to adapt to more complex and harsh working environments.

[0003] In many flammable and explosive workplaces, such as petrochemical, underground coal mines, natural gas transportation and processing, etc., the safety and performance requirements for ventilation equipment are extremely high. If it is not installed properly, it will become loose after long-term use, which will easily increase safety hazards and even cause serious damage to the surrounding environment. Especially in situations where it is necessary to frequently connect and disassemble the fan and the pipes connected to the fan, the traditional connection method is obviously unable to meet the needs of efficiency and convenience. For this reason, the present invention proposes a high-sealing and noise-reducing explosion-proof vortex fan. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention provides a high-sealing and noise-reducing explosion-proof vortex blower to solve the above-mentioned problems.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a highly sealed and noise-reducing explosion-proof vortex fan, comprising a driving pump, one side of the driving pump is fixedly connected to a sealed air chamber housing, a driving shaft of the driving pump extends to the inner cavity of the sealed air chamber housing and is fixedly connected to an impeller, a power connector is fixedly connected to the top of the driving pump, the driving pump and the power connector are electrically connected, both lower ends of the two sides of the driving pump are fixedly connected to air outlet cavities, one end of the two air outlet cavities is fixedly connected to the lower end of the side of the sealed air chamber housing, the other side of the two air outlet cavities is provided with a sealing connection device, the bottom of the driving pump is fixedly connected to a noise reduction base, and also includes: There are multiple composite fixing bolts, which are movably inserted at both ends of the upper side of the noise reduction base and are used to firmly fix the entire device at a desired fixing position.

[0006] Preferably, an anti-loosening structure is provided on the side of the composite fixing bolt, a vertebral nail head is fixedly connected to the bottom of the composite fixing bolt, the vertebral nail head is spirally distributed, a through slot is provided on the top of the composite fixing bolt, the through slot extends to above the junction of the composite fixing bolt and the vertebral nail head, an insertion rod is movably inserted in the through slot, a threaded groove for extrusion is provided at the lower end of the inner wall of the through slot, and a pressurized fixing ball placement cavity is provided in the inner cavity of the composite fixing bolt corresponding to the bottom of the through slot.

[0007] Preferably, an extrusion screw is fixedly connected to the bottom of the insertion rod, and the extrusion screw matches the extrusion thread groove. An extrusion ball is fixedly connected to the bottom of the extrusion screw. Three circular through holes equidistantly distributed in an annular shape are provided at the lower end of the side of the composite fixing bolt corresponding to the pressure fixing ball placement cavity. Three pressure fixing balls are movably clamped in the pressure fixing ball placement cavity, and the diameters of the three pressure fixing balls are smaller than the diameters of the circular through holes.

[0008] Preferably, the anti-loosening structure includes an anti-loosening gasket one and an anti-loosening gasket two, and the upper end of the side surface of the composite fixing bolt is movably sleeved with anti-loosening gasket one and anti-loosening gasket two in sequence from top to bottom, and the upper side surface of the anti-loosening gasket one is provided with a plurality of inverted triangular grooves distributed in a circular shape and at equal intervals, and the plurality of inverted triangular grooves are continuously distributed, and the bottom of the anti-loosening gasket one is provided with a right-angle groove, and the anti-loosening gasket two has the same shape as the anti-loosening gasket one and is arranged in a mirror image, and the bottom of the anti-loosening gasket one matches the top of the anti-loosening gasket two.

[0009] Preferably, the sealing connection device includes a first fixed sleeve, a connecting sleeve, an extruded connecting tube and a second fixed sleeve, the two air outlet cavities are fixedly connected to the first fixed sleeve at one end away from the sealed air chamber shell, the connecting sleeve is movably sleeved on the outer surface of the first fixed sleeve, an extruded connecting tube is movably inserted in the first fixed sleeve, and the second fixed sleeve is movably sleeved at one end of the extruded connecting tube away from the first fixed sleeve.

[0010] Preferably, a limiting ring 1 is fixedly connected to the outer surface of the first fixed sleeve, the end of the connecting sleeve close to the air outlet chamber is in a contracted shape, the inner wall of the connecting sleeve close to the air outlet chamber is against the side of the limiting ring 1, the side of the first fixed sleeve away from the air outlet chamber is fixedly connected with a ball valve limiting tube, the end of the connecting sleeve away from the limiting ring 1 is provided with a threaded connection groove, the end of the inner wall of the second fixed sleeve close to the first fixed sleeve is fixedly connected to a limiting ring 2, and the end of the side surface of the extruded connecting tube corresponding to the limiting ring 2 away from the first fixed sleeve is fixedly connected to a limiting ring 3.

[0011] Preferably, the inner wall of the first fixed sleeve on the side close to the air outlet cavity is connected to the inner cavity of the air outlet cavity and is fixedly connected to a first extrusion spring, the other end of the first extrusion spring is fixedly connected to a first gas ball valve, the diameter of the first gas ball valve is larger than the diameter of the inner circle hole of the ball valve limiting tube, the inner wall of the second fixed sleeve on the side away from the first fixed sleeve is fixedly connected to a second extrusion spring, the other end of the second extrusion spring is fixedly connected to a second gas ball valve, and the second gas ball valve is abutted against the inner wall of the inner circle hole of the limiting ring 2.

[0012] Preferably, both ends of the side surface of the extruded connecting tube are provided with a plurality of ventilation square grooves which are equidistantly distributed in an annular shape.

[0013] Compared with the prior art, the present invention provides a high-sealing and noise-reducing explosion-proof vortex fan, which has the following beneficial effects: The high-sealing and noise-reducing explosion-proof vortex fan greatly enhances the fixing stability of the fan system through the combined design of composite fixing bolts and anti-loosening gaskets. The inverted triangular groove on the anti-loosening gasket deforms during the bolt tightening process, increasing the friction between the bolt and the fixing surface, effectively preventing the bolt from loosening due to vibration or external force, ensuring that the fan system can remain stable in various environments, and improving the safety and reliability of the equipment.

[0014] The installation process of this high-sealing noise-reducing explosion-proof vortex fan is simple and convenient. You only need to insert the composite fixing bolt into the preset hole, rotate it and drill it in, and further tighten it through the plug rod. This not only simplifies the installation steps, but also improves the adaptability of the installation. Whether on a flat surface or a fixed surface with a certain inclination, the device can be stably installed to meet the use requirements in different scenarios.

[0015] The high-sealing, noise-reducing explosion-proof vortex fan uses threaded transmission between the extrusion screw at the bottom of the plug rod and the extrusion thread groove in the inner cavity of the composite fixing bolt, pushing the extrusion ball to compress the pressurized fixed ball in the pressurized fixed ball placement cavity, causing it to expand outward, further increasing the tightening force between the bolt and the fixing surface, which not only improves the tightening degree of the fan system, but also enhances its durability.

[0016] The high-sealing noise-reducing explosion-proof vortex fan rotates the connecting sleeve to make a preliminary sealing connection between the connecting sleeve and the second fixed sleeve. At the same time, the two ends of the extrusion connecting pipe are respectively squeezed toward the first gas ball valve and the second gas ball valve to open the ventilation duct, which not only simplifies the connection process of the ventilation duct, but also improves the sealing of the connection. More importantly, when the ventilation duct may become loose due to vibration or other reasons, or when the fan is not turned off and an attempt is made to pull out the connected guide duct, this sealing connection device can ensure that harmful gases will not flow out, thereby ensuring the safety of personnel and the environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the front structure of the present invention; Figure 2 is a schematic diagram of the back structure of the present invention; Figure 3 It is a schematic diagram of the structure of the composite fixing bolt in the present invention; Figure 4 It is a schematic diagram of the cross-sectional split structure of the composite fixing bolt in the present invention; Figure 5 It is a schematic diagram of the structure of the anti-loosening gasket 1 and the anti-loosening gasket 2 in the present invention; Figure 6 It is a schematic structural diagram of the sealing connection device in the present invention; Figure 7 is a schematic cross-sectional structural diagram of the first fixed sleeve in the present invention; Figure 8 It is a schematic cross-sectional structural diagram of the second fixed sleeve in the present invention.

[0018] In the figure: 1. driving pump; 2. sealing air chamber housing; 3. impeller; 4. power connector; 5. air outlet chamber; 6. noise reduction base; 7. sealing connection device; 8. composite fixing bolt; 9. anti-loosening structure; 10. vertebral nail head; 11. through slot; 12. insert rod; 13. extrusion screw; 14. extrusion thread groove; 15. pressure fixed ball placement cavity; 16. extrusion ball; 17. pressure fixed ball; 18. anti-loosening gasket one; 19. anti-loosening gasket two; 20. first fixed sleeve; 21. connecting sleeve; 22. extrusion connecting pipe; 23. second fixed sleeve; 24. limit ring one; 25. ball valve limit pipe; 26. first extrusion spring; 27. first gas ball valve; 28. limit ring two; 29. ​​second extrusion spring; 30. second gas ball valve; 31. limit ring three; 32. ventilation square groove. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions 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 creative work are within the scope of protection of the present invention.

[0020] See also Figure 1-8A high-sealing and noise-reducing explosion-proof vortex fan comprises a driving pump 1, one side of the driving pump 1 is fixedly connected to a sealed air chamber housing 2, a driving shaft of the driving pump 1 extends to the inner cavity of the sealed air chamber housing 2 and is fixedly connected to an impeller 3, a power connector 4 is fixedly connected to the top of the driving pump 1, the driving pump 1 and the power connector 4 are electrically connected, both lower ends of the driving pump 1 are fixedly connected to air outlet cavities 5, one end of the two air outlet cavities 5 is fixedly connected to the lower end of the side of the sealed air chamber housing 2, the other sides of the two air outlet cavities 5 are provided with a sealing connection device 7, the bottom of the driving pump 1 is fixedly connected to a noise reduction base 6, and also includes: There are multiple composite fixing bolts 8, which are movably inserted into both ends of the upper side surface of the noise reduction base 6 to firmly fix the entire device at the place where it needs to be fixed.

[0021] Furthermore, an anti-loosening structure 9 is provided on the side of the composite fixing bolt 8, and a vertebral nail head 10 is fixedly connected to the bottom of the composite fixing bolt 8, and the vertebral nail head 10 is distributed in a spiral shape. A through slot 11 is provided at the top of the composite fixing bolt 8, and the through slot 11 extends to above the junction of the composite fixing bolt 8 and the vertebral nail head 10. An insertion rod 12 is movably inserted in the through slot 11, and a threaded groove 14 for extrusion is provided at the lower end of the inner wall of the through slot 11. A pressurized fixed ball placement cavity 15 is provided in the inner cavity of the composite fixing bolt 8 corresponding to the bottom of the through slot 11. At the bottom of the composite fixing bolt 8, a vertebral nail head 10 is fixedly connected and distributed in a spiral shape, which increases the contact area and friction with the fixing surface and further improves the stability of the fixation.

[0022] Furthermore, the bottom of the insertion rod 12 is fixedly connected with an extrusion screw 13, and the extrusion screw 13 matches the extrusion thread groove 14. The bottom of the extrusion screw 13 is fixedly connected with an extrusion ball 16. The lower end of the side of the composite fixing bolt 8 corresponds to the pressure fixing ball placement cavity 15, and three circular through holes are arranged in an annular and equidistant manner. Three pressure fixing balls 17 are movably connected in the pressure fixing ball placement cavity 15. The diameters of the three pressure fixing balls 17 are smaller than the diameters of the circular through holes. When the insertion rod 12 is inserted into the through slot 11 and rotated, the extrusion screw 13 and the extrusion thread groove 14 are threadedly driven to push the extrusion ball 16 downward. The extrusion ball 16 then compresses the pressure fixing ball 17 in the pressure fixing ball placement cavity 15, causing it to expand outward, further increasing the tightening force between the bolt and the fixing surface, and ensuring that the fan can still maintain a stable fixed state in harsh environments.

[0023] Furthermore, the anti-loosening structure 9 includes an anti-loosening gasket 18 and an anti-loosening gasket 2 19. The upper end of the side of the composite fixing bolt 8 is movably sleeved with the anti-loosening gasket 18 and the anti-loosening gasket 2 19 from top to bottom in sequence. The upper side of the anti-loosening gasket 18 is provided with a plurality of inverted triangular grooves distributed in an annular shape and at equal intervals. The plurality of inverted triangular grooves are continuously distributed. The bottom of the anti-loosening gasket 18 is provided with a right-angle groove. The anti-loosening gasket 2 19 has the same shape as the anti-loosening gasket 18 and is arranged in a mirror image. The bottom of the anti-loosening gasket 18 matches the top of the anti-loosening gasket 2 19. The special shape design of the anti-loosening gasket 18 and the anti-loosening gasket 2 19 enables them to bite into each other to form an effective anti-loosening mechanism. When the composite fixing bolt 8 is tightened, the anti-loosening gasket 18 and the anti-loosening gasket 2 19 will be squeezed and deformed. This deformation will generate an additional friction force between the composite fixing bolt 8 and the fixing surface, increasing the tightening force of the connection, thereby producing an anti-loosening effect.

[0024] Furthermore, the sealing connection device 7 includes a first fixed sleeve 20, a connecting sleeve 21, an extrusion connecting tube 22 and a second fixed sleeve 23. The ends of the two air outlet cavities 5 away from the sealed air chamber shell 2 are fixedly connected with the first fixed sleeve 20. The connecting sleeve 21 is movably sleeved on the outer surface of the first fixed sleeve 20. The extrusion connecting tube 22 is movably inserted in the first fixed sleeve 20. The end of the extrusion connecting tube 22 away from the first fixed sleeve 20 is movably sleeved with the second fixed sleeve 23. During the connection process, it is only necessary to insert the second fixed sleeve 23 into the connecting sleeve 21 and rotate the connecting sleeve 21 to achieve a preliminary sealing connection. At the same time, when the connecting sleeve 21 and the second fixed sleeve 23 gradually approach each other, the extrusion connecting tube 22 will squeeze the first gas ball valve 27 and the second gas ball valve 30, so that the ventilation duct is automatically opened, which not only improves the connection efficiency but also ensures the sealing and safety of the connection.

[0025] Furthermore, a limiting ring 24 is fixedly connected to the outer surface of the first fixed sleeve 20, the end of the connecting sleeve 21 close to the air outlet chamber 5 is in a contracted shape, and the inner wall of the connecting sleeve 21 close to the air outlet chamber 5 is against the side of the limiting ring 24, and the side of the first fixed sleeve 20 away from the air outlet chamber 5 is fixedly connected with a ball valve limiting tube 25, and a threaded connection groove is provided at the end of the connecting sleeve 21 away from the limiting ring 24, and a limiting ring 28 is fixedly connected to the inner wall of the second fixed sleeve 23 at one end close to the first fixed sleeve 20, and a limiting ring 31 is fixedly connected to the side surface of the extrusion connecting tube 22 corresponding to the limiting ring 28 away from the first fixed sleeve 20.

[0026] Furthermore, the inner wall of the first fixed sleeve 20 on one side close to the air outlet chamber 5 is connected to the inner cavity of the air outlet chamber 5 and is fixedly connected to a first extrusion spring 26. The other end of the first extrusion spring 26 is fixedly connected to a first gas ball valve 27. The diameter of the first gas ball valve 27 is larger than the diameter of the inner circle hole of the ball valve limiting tube 25. The inner wall of the second fixed sleeve 23 on the side away from the first fixed sleeve 20 is fixedly connected to a second extrusion spring 29. The other end of the second extrusion spring 29 is fixedly connected to a second gas ball valve 30. The second gas ball valve 30 is abutted against the inner wall of the inner circle hole of the limiting ring 28.

[0027] Furthermore, both ends of the side surface of the extruded connecting tube 22 are provided with a plurality of annular equidistantly distributed square ventilation grooves 32 .

[0028] Working principle: First, the driving pump 1 is used as a power source, and its driving shaft extends into the inner cavity of the sealed air chamber housing 2, and is fixedly connected with the impeller 3. When the driving pump 1 is started, the driving shaft drives the impeller 3 to rotate at high speed, generating a strong airflow. The power connector 4 is electrically connected to the driving pump 1 to provide a stable power supply for the entire fan system. The air outlet cavity 5 is arranged at the lower end of the side of the sealed air chamber housing 2, and is connected to the airflow generated by the impeller 3 to direct the airflow to where it is needed; when it is necessary to fix the device, first, insert the anti-loosening gasket 18 from the lower end of the side of the composite fixing bolt 8 until its bottom contacts the shoulder of the bolt, then insert the anti-loosening gasket 2 19 from the lower end of the side of the composite fixing bolt 8, and make it fit tightly with the anti-loosening gasket 18. The special shape designs of the anti-loosening gasket 18 and the anti-loosening gasket 2 19 will match each other to form an effective anti-loosening mechanism, and insert the composite fixing bolt 8 into the upper side of the noise reduction base 6. The composite fixing bolt 8 is then rotated to make it rotate and drill into the fixed position through the vertebral nail head 10 at the bottom, driving the composite fixing bolt 8 to extend inward. After the composite fixing bolt 8 is initially fixed and tightened, the insertion rod 12 is inserted from the through slot 11 at the top of the composite fixing bolt 8, and then the insertion rod 12 is rotated so that the extrusion screw 13 at the bottom of the insertion rod 12 and the extrusion thread groove 14 in the inner cavity of the composite fixing bolt 8 are threadedly driven, pushing the extrusion ball 16 to move downward, and by pushing the extrusion ball 16 to compress the three compressed fixed balls 17 in the compressed fixed ball placement cavity 15, the compressed fixed balls 17 will expand outward after being squeezed, further increasing the tightening force between the bolt and the fixed surface.

[0029] Since the upper side surfaces of the anti-loosening gasket 18 and the anti-loosening gasket 2 19 are designed with a plurality of inverted triangular grooves distributed in an annular manner and at equal intervals, when the composite fixing bolt 8 is tightened, the anti-loosening gasket 18 contacts the head of the bolt or the nut. Since there are inverted triangular grooves on the gasket surface, the bolt or nut will squeeze these grooves during the tightening process, causing the gasket to deform to a certain extent. This deformation will generate an additional friction force between the composite fixing bolt 8 and the fixing surface, increasing the tightening force of the connection. At the same time, when the bolt or nut tries to loosen, the shape of the inverted triangular groove will hinder its movement, thereby producing an anti-loosening effect.

[0030] When the ventilation duct is connected through the sealing connection device 7, first, the end of the second fixed sleeve 23 away from the connecting sleeve 21 is sealed and connected to the ventilation duct, and then the second fixed sleeve 23 is inserted into the connecting sleeve 21. When the inner wall of the connecting sleeve 21 contacts the outer wall of the second fixed sleeve 23, the connecting sleeve 21 and the second fixed sleeve 23 are initially sealed and connected by rotating the connecting sleeve 21 through threaded transmission. When the connecting sleeve 21 and the second fixed sleeve 23 gradually approach each other, the end of the connecting pipe 22 close to the first gas ball valve 27 is squeezed and inserted into the first fixed sleeve 20. By squeezing the two ends of the connecting pipe 22 respectively toward the first gas ball valve 27 and the second gas ball valve 30, the ventilation ducts of the first fixed sleeve 20 and the second fixed sleeve 23 are opened, thereby realizing the automatic ventilation function during the connection process. More importantly, when the ventilation duct may be loosened due to vibration or the like, or when the fan is not turned off and an attempt is made to pull out the connected guide duct, this sealing connection device can ensure that harmful gases will not flow out.

[0031] In terms of fixation and connection, a composite fixing bolt 8 is used with an anti-loosening gasket 18 and an anti-loosening gasket 2 19, and the vertebral nail head 10 is used to drill into the fixing surface firmly, and the threaded transmission of the plug rod 12 and the extrusion screw 13 is used to push the extrusion ball 16 to compress the compressed fixed ball 17, which significantly enhances the fixation stability. The sealing connection device 7 realizes preliminary sealing by rotating the connection sleeve 21 and the second fixed sleeve 23, and at the same time, the extrusion connecting pipe 22 squeezes the first gas ball valve 27 and the second gas ball valve 30 to automatically open the ventilation duct to ensure the tightness and safety of the connection; in terms of noise reduction, the noise reduction base 6 is made of high-density polyethylene material, which can effectively absorb and isolate the noise of the fan operation; the sealed air cavity shell 2 adopts a streamlined design and is coated with a sound-absorbing coating to reduce the airflow disturbance noise; in terms of explosion-proof, the sealed air cavity shell 2 is made of explosion-proof material to enhance the structural strength and corrosion resistance; the sealing connection device 7 realizes double sealing through components such as the ball valve limit tube 25, the limit ring 1 24 and the limit ring 2 28 to prevent the leakage of harmful gases.

[0032] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A highly sealed and noise-reducing explosion-proof vortex blower, comprising a driving pump (1), characterized in that: One side of the driving pump (1) is fixedly connected to a sealed air chamber housing (2); a driving shaft of the driving pump (1) extends into the inner cavity of the sealed air chamber housing (2) and is fixedly connected to an impeller (3); a power connector (4) is fixedly connected to the top of the driving pump (1); the driving pump (1) and the power connector (4) are electrically connected; both lower ends of the driving pump (1) are fixedly connected to air outlet cavities (5); one end of the two air outlet cavities (5) is fixedly connected to the lower end of the side of the sealed air chamber housing (2); the other sides of the two air outlet cavities (5) are provided with a sealing connection device (7); the bottom of the driving pump (1) is fixedly connected to a noise reduction base (6); and further comprises: The composite fixing bolts (8), which are in plurality, are movably inserted into the two ends of the upper side surface of the noise reduction base (6) to firmly fix the whole at a desired fixing position.

2. The high-sealing, noise-reducing explosion-proof vortex blower according to claim 1 is characterized in that: An anti-loosening structure (9) is provided on the side of the composite fixing bolt (8); a vertebral nail head (10) is fixedly connected to the bottom of the composite fixing bolt (8); the vertebral nail head (10) is distributed in a spiral shape; a through slot (11) is provided at the top of the composite fixing bolt (8); the through slot (11) extends to above the junction between the composite fixing bolt (8) and the vertebral nail head (10); an insertion rod (12) is movably inserted in the through slot (11); a screw thread groove (14) for extrusion is provided at the lower end of the inner wall of the through slot (11); and a pressure fixing ball placement cavity (15) is provided in the inner cavity of the composite fixing bolt (8) corresponding to the lower side of the through slot (11).

3. The high-sealing, noise-reducing explosion-proof vortex blower according to claim 2 is characterized in that: The bottom of the insertion rod (12) is fixedly connected to an extrusion screw (13), the extrusion screw (13) matches the extrusion thread groove (14), the bottom of the extrusion screw (13) is fixedly connected to an extrusion ball (16), and the lower end of the side of the composite fixing bolt (8) is provided with three circular through holes distributed in an annular shape and at equal intervals corresponding to the pressure-fixing ball placement cavity (15), and three pressure-fixing balls (17) are movably clamped in the pressure-fixing ball placement cavity (15), and the diameters of the three pressure-fixing balls (17) are smaller than the diameters of the circular through holes.

4. The high-sealing, noise-reducing explosion-proof vortex blower according to claim 2 is characterized in that: The anti-loosening structure (9) comprises an anti-loosening gasket 1 (18) and an anti-loosening gasket 2 (19); the upper end of the side surface of the composite fixing bolt (8) is movably sleeved with the anti-loosening gasket 1 (18) and the anti-loosening gasket 2 (19) in sequence from top to bottom; the upper side surface of the anti-loosening gasket 1 (18) is provided with a plurality of inverted triangular grooves distributed in an annular shape and at equal intervals; the plurality of inverted triangular grooves are distributed continuously; the bottom of the anti-loosening gasket 1 (18) is provided with a right-angle groove; the anti-loosening gasket 2 (19) is the same shape as the anti-loosening gasket 1 (18) and is arranged in a mirror image; the bottom of the anti-loosening gasket 1 (18) matches the top of the anti-loosening gasket 2 (19).

5. The high-sealing noise-reducing explosion-proof vortex blower according to claim 1, characterized in that: The sealing connection device (7) comprises a first fixed sleeve (20), a connecting sleeve (21), an extruded connecting tube (22), and a second fixed sleeve (23); one end of the two air outlet cavities (5) away from the sealed air cavity housing (2) is fixedly connected to the first fixed sleeve (20); the connecting sleeve (21) is movably sleeved on the outer surface of the first fixed sleeve (20); the extruded connecting tube (22) is movably inserted into the first fixed sleeve (20); and the end of the extruded connecting tube (22) away from the first fixed sleeve (20) is movably sleeved to the second fixed sleeve (23).

6. The high-sealing, noise-reducing explosion-proof vortex blower according to claim 5, characterized in that: A limiting ring 1 (24) is fixedly connected to the outer surface of the first fixed sleeve (20); the end of the connecting sleeve (21) close to the air outlet chamber (5) is in a contracted shape; the inner wall of the connecting sleeve (21) close to the air outlet chamber (5) abuts against the side surface of the limiting ring 1 (24); a ball valve limiting tube (25) is fixedly connected to the side of the first fixed sleeve (20) away from the air outlet chamber (5); a threaded connection groove is provided at the end of the connecting sleeve (21) away from the limiting ring 1 (24); a limiting ring 2 (28) is fixedly connected to the inner wall of the second fixed sleeve (23) at one end close to the first fixed sleeve (20); and a limiting ring 3 (31) is fixedly connected to the side surface of the extruded connecting tube (22) corresponding to the limiting ring 2 (28) away from the first fixed sleeve (20).

7. The high-sealing, noise-reducing explosion-proof vortex blower according to claim 6, characterized in that: The inner wall of the first fixed sleeve (20) on one side close to the air outlet cavity (5) is in communication with the inner cavity of the air outlet cavity (5) and is fixedly connected to a first extrusion spring (26); the other end of the first extrusion spring (26) is fixedly connected to a first gas ball valve (27); the diameter of the first gas ball valve (27) is larger than the diameter of the inner circle hole of the ball valve limit tube (25); the inner wall of the second fixed sleeve (23) on one side away from the first fixed sleeve (20) is fixedly connected to a second extrusion spring (29); the other end of the second extrusion spring (29) is fixedly connected to a second gas ball valve (30); the second gas ball valve (30) abuts against the inner wall of the inner circle hole of the second limit ring (28).

8. The high-sealing, noise-reducing explosion-proof vortex blower according to claim 5, characterized in that: Both ends of the side surface of the extruded connecting tube (22) are provided with a plurality of annular equidistantly distributed square ventilation grooves (32).

Images