Closed cooling tower facilitating pollution discharge and use method thereof

Abstract

The invention provides a closed cooling tower convenient for pollution discharge and a use method thereof. The closed cooling tower convenient for pollution discharge comprises a cooling tower body, a spraying mechanism body is arranged in an inner cavity of the cooling tower body, a placing ring is fixed in the inner cavity of the cooling tower body, and a filter plate is movably arranged on the surface of the placing ring; a driving mechanism is arranged in an inner cavity of the cooling tower body, the surface of the driving mechanism is connected with a brush, a dust collection mechanism and an inflation mechanism, and the inflation mechanism is connected with the vibration mechanism. The driving mechanism is arranged in the inner cavity of the cooling tower body and connected with the brush, the dust collection mechanism, the inflating mechanism and the vibration mechanism, the brush can be driven to mechanically brush the surface of the filter plate to remove scale impurities, and the filter plate is vibrated through linkage of the inflating mechanism and the vibration mechanism to promote pore impurities to fall off; the problems that impurities accumulated in a water tank of an existing cooling tower need to be cleaned frequently, water circulation is affected by blockage of a filter plate, and secondary blockage of the impurities is prone to occurring after cleaning and brushing are solved.

Description

Technical Field

[0001] The present invention relates to the technical field of cooling tower equipment, in particular to a closed cooling tower convenient for sewage discharge and a use method thereof. Background Art

[0002] After the existing cooling tower water tank is used for heat exchange spraying, the spray water will fall into the water tank. When the spray water collects and accumulates inside the water tank for a long time, it is easy to form scale and other impurities, which requires frequent cleaning of the water tank. Existing cooling towers have internal filters to intercept the water, but the filter surface will become clogged after long-term use, which will affect the subsequent recycling of the spray water.

[0003] In the prior art, when this type of equipment is in use, the filter plate can be cleaned by a built-in cleaning device. However, after cleaning the debris on the surface of the filter plate, the debris cannot be removed, and the debris may still clog the filter plate during next use. Summary of the Invention

[0004] The purpose of the present invention is to provide a closed cooling tower that is convenient for sewage discharge and a method of using the same. Through the innovative design and coordinated operation of multiple mechanisms, the sewage discharge efficiency and comprehensive performance of the closed cooling tower are significantly improved.

[0005] According to one purpose of the present invention, the present invention provides a closed cooling tower that is convenient for sewage discharge, comprising a cooling tower body, the inner cavity of the cooling tower body is provided with a spray mechanism body, the inner cavity of the cooling tower body is fixed with a placement ring, and the surface of the placement ring is movably provided with a filter plate; the inner cavity of the cooling tower body is provided with a driving mechanism, the surface of the driving mechanism is respectively connected to a brush, a dust suction mechanism and an air pumping mechanism, and the air pumping mechanism is connected to a vibration mechanism.

[0006] Furthermore, the driving mechanism includes a motor, a driving gear, a driven gear, a connecting pipe and a rotating plate, the motor is fixed to the inner cavity of the cooling tower body, the driving gear is fixed to the output shaft of the motor, the driven gear is meshed with the driving gear, the connecting pipe passes through and is fixed to the inner cavity of the driven gear, the rotating plate is fixed to the other end of the connecting pipe, and the brush is fixed to the surface of the rotating plate.

[0007] Furthermore, the dust suction mechanism includes a dust suction pipe, a dust storage box, a dust suction pump and a dust suction groove. The dust suction pipe rotates and is connected to one end of the connecting pipe. The dust suction groove is opened on the surface of the rotating plate. The dust storage box is connected to the other end of the dust suction pipe. The dust suction pump is connected to the surface of the dust storage box, and the dust suction pipe is connected to the dust suction groove.

[0008] Furthermore, the pumping mechanism includes a first transmission rod, a second transmission rod, a rotating disk, a first hinged rod, a second hinged rod, a first piston head and a first piston tube. The first transmission rod is connected to the output shaft of the motor through a bevel gear transmission, the second transmission rod is connected to the other end of the first transmission rod through a bevel gear transmission, the rotating disk is fixed to one end of the second transmission rod, the first hinged rod is rotatably set on the surface of the rotating disk, one end of the second hinged rod is rotatably connected to the first hinged rod, the first piston head is fixed to the other end of the second hinged rod, and the first piston head is slidably set in the inner cavity of the first piston tube.

[0009] Furthermore, the vibration mechanism includes a connecting air pipe, a second piston tube, a second piston head, a driving rod and a knocking head. The connecting air pipe is connected to the surface of the first piston tube, and several second piston tubes are connected to the other end of the connecting air pipe. The second piston head is slidably arranged in the inner cavity of the second piston tube, one end of the driving rod is fixed to one side of the second piston head, and the knocking head is fixed to the other end of the driving rod. The driving rod passes through the placement ring and is slidably connected to the placement ring.

[0010] Furthermore, a connecting frame is fixed on the surface of the second piston tube, and the other end of the connecting frame is fixed to the inner cavity of the cooling tower body.

[0011] Furthermore, a limiting rod is rotatably provided on the surface of each of the first transmission rod and the second transmission rod, and the other end of the limiting rod is fixed to the inner cavity of the cooling tower body.

[0012] According to another object of the present invention, the present invention provides a method for using the above-mentioned closed cooling tower that is convenient for sewage discharge, comprising the following steps: S1. Drive cleaning: Start the motor, and through the meshing transmission of the driving gear and the driven gear, drive the connecting pipe and the rotating plate to rotate, so that the brush mechanically cleans the surface of the filter plate to remove attached scale and debris; S2, vibration-assisted cleaning: The air pressure change in the first piston tube is transmitted to the second piston tube through the connecting air pipe, pushing the second piston head to slide back and forth, driving the driving rod and the knocking head to periodically knock on the filter plate, causing the filter plate to vibrate and promote the removal of impurities in the pores; S3. Negative pressure vacuuming and sewage discharge: Start the vacuum pump to form negative pressure in the vacuum pipe, dust storage box and vacuum trough. The debris cleaned by the brush is sucked into the vacuum trough and stored in the dust storage box, and discharged through the sewage outlet regularly.

[0013] Furthermore, it also includes S4, filter plate maintenance: when deep cleaning or replacement of the filter plate is required, the connection structure between the filter plate and the placement ring is disassembled, and the filter plate is taken out for cleaning or replacement.

[0014] Furthermore, in step S1, the motor synchronously drives the pumping mechanism to operate, and the motor drives the first transmission rod and the second transmission rod to rotate through the bevel gear transmission, so that the rotating disk drives the first hinged rod and the second hinged rod to move, driving the first piston head to slide back and forth in the first piston tube, so that periodic air pressure changes are generated in the first piston tube.

[0015] The technical solution of the present invention is to set a spray mechanism body, a placement ring and a movable filter plate in the inner cavity of the cooling tower body, and configure a driving mechanism to connect the brush, the dust suction mechanism, the air pumping mechanism and the vibration mechanism, so as to drive the brush to mechanically clean the surface of the filter plate to remove scale and debris. The air pumping mechanism and the vibration mechanism are linked to make the filter plate vibrate to cause impurities in the pores to fall off. At the same time, the dust suction mechanism uses the negative pressure to absorb debris and store it in the dust storage box and discharge it regularly. This solves the problems of impurity accumulation in the existing cooling tower water tank that requires frequent cleaning, filter plate clogging that affects water circulation, and debris that is prone to secondary clogging after cleaning, thereby improving the sewage discharge efficiency and cleaning effect, and has good structural coordination and convenient maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the specific embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0017] Figure 1 Schematic diagram of the structure of an embodiment of the present invention; Figure 2 Schematic diagram of the internal structure of an embodiment of the present invention; Figure 3 For the embodiment of the present invention Figure 2 Schematic diagram of the local structure at A in the middle; Figure 4 This is a structural diagram of an air pumping mechanism according to an embodiment of the present invention; Figure 5 This is a schematic structural diagram of a vibration mechanism according to an embodiment of the present invention; In the figure, 1. Cooling tower body; 2. Spray mechanism body; 3. Filter plate; 4. Driving mechanism; 41. Motor; 42. Driving gear; 43. Driven gear; 44. Connecting pipe; 45. Rotating plate; 5. Brush; 6. Dust collection mechanism; 61. Dust collection pipe; 62. Dust storage box; 63. Dust collection pump; 64. Dust collection tank; 7. Place the ring; 8. Pumping mechanism; 81. First transmission rod; 82. Second transmission rod; 83. Rotating plate; 84. First hinged rod; 85. Second hinged rod; 86. First piston head; 87. First piston tube; 9. Vibration mechanism; 91. Connecting air pipe; 92. Second piston tube; 93. Second piston head; 94. Driving rod; 95. Percussion head; 10. Connecting frame; 11. Limit rod. DETAILED DESCRIPTION

[0018] The following will clearly and completely describe the technical solutions of the present invention in conjunction with the embodiments. Obviously, the embodiments described are only some embodiments of the present invention, not all 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.

[0019] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like to indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operate in a specific direction, and therefore should not be understood as limiting the present invention.

[0020] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the said features. In the description of the present invention, "multiple" means two or more, unless otherwise clearly and specifically defined. In addition, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a communication between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0021] Example 1 like Figure 1-Figure 5 As shown, A closed cooling tower for easy sewage discharge includes a cooling tower body 1, an inner cavity of the cooling tower body 1 is provided with a spray mechanism body 2, a placement ring 7 is fixed to the inner cavity of the cooling tower body 1, a filter plate 3 is movably provided on the surface of the placement ring 7, and the filter plate 3 is connected to the placement ring 7 through a detachable structure.

[0022] The inner cavity of the cooling tower body 1 is provided with a driving mechanism 4 for driving, the surface of the driving mechanism 4 is provided with a brush 5, the surface of the driving mechanism 4 is provided with a dust collection mechanism 6 for sucking up debris, the surface of the driving mechanism 4 is provided with an air pumping mechanism 8, and the surface of the air pumping mechanism 8 is provided with a vibration mechanism 9 for making the filter plate 3 vibrate.

[0023] When the present invention is in use, the brush 5 cleans the filter plate 3 under the action of the driving mechanism 4, and the dust collection mechanism 6 sucks out debris from the surface of the filter plate 3, thereby improving the practicality of the device. In addition, the vibration mechanism 9 causes the filter plate 3 to vibrate, thereby improving the cleaning effect of the brush 5 on the filter plate 3.

[0024] Specifically, if Figure 1-Figure 4 As shown, the driving mechanism 4 includes a motor 41 fixed to the inner cavity of the cooling tower body 1, the output shaft of the motor 41 is fixed with a driving gear 42, the surface of the driving gear 42 is meshed with a driven gear 43, the inner cavity of the driven gear 43 passes through and is fixed with a connecting pipe 44, the other end of the connecting pipe 44 is fixed with a rotating plate 45, and the brush 5 is fixed to the surface of the rotating plate 45.

[0025] In this embodiment, under the action of the motor 41, the driving gear 42 rotates, and the driven gear 43 engaged with the surface of the driving gear 42 can rotate the connecting tube 44, and then the rotating plate 45 fixed to the surface of the connecting tube 44 can rotate on the surface of the filter plate 3, and under the action of the brush 5, the filter plate 3 can be cleaned.

[0026] Specifically, if Figure 1 、 Figure 2 and Figure 3 As shown, the dust collection mechanism 6 includes a dust collection pipe 61 that rotates and is connected to one end of the connecting pipe 44, and a dust collection groove 64 formed on the surface of the rotating plate 45. The other end of the dust collection pipe 61 is connected to a dust storage box 62, and the surface of the dust storage box 62 is connected to a dust collection pump 63. The dust collection pipe 61 and the dust collection groove 64 are connected. The dust storage box 62 is arranged on the outside of the cooling tower body 1, and a sewage outlet is provided at the bottom of the dust storage box 62.

[0027] In this embodiment, under the action of the dust suction pump 63, negative pressure is generated in the dust suction pipe 61, the dust storage box 62 and the dust suction pump 63, which can drive the mechanism 4 to absorb the debris cleaned out.

[0028] Specifically, if Figure 1 、 Figure 2 and Figure 4 As shown, the pumping mechanism 8 includes a first transmission rod 81 that is transmitted to the output shaft of the motor 41 through bevel gears, and the other end of the first transmission rod 81 is provided with a second transmission rod 82 through bevel gear transmission, and one end of the second transmission rod 82 is fixed with a rotating disk 83, and the surface of the rotating disk 83 is rotatably provided with a first hinged rod 84, and the other end of the first hinged rod 84 is rotatably provided with a second hinged rod 85, and the other end of the second hinged rod 85 is fixed with a first piston head 86, and the surface of the first piston head 86 is slidingly provided with a first piston tube 87.

[0029] In this embodiment, when the motor 41 is working, the first transmission rod 81 transmitted to the motor 41 can cause the second transmission rod 82 to rotate, and then under the action of the rotating disk 83, the hinged first hinged rod 84 and the second hinged rod 85 are hingedly connected to form a cam structure, so that the first piston head 86 slides in the inner cavity of the first piston tube 87, so that the pressure in the inner cavity of the first piston tube 87 changes.

[0030] Specifically, as shown in FIG. Figure 1 、 Figure 2 、 Figure 4 and Figure 5 As shown, the vibration mechanism 9 includes a connecting air pipe 91 connected to the surface of the first piston tube 87, the other end of the connecting air pipe 91 is connected to a plurality of second piston tubes 92, the inner cavity of the second piston tube 92 is slidably provided with a second piston head 93, a driving rod 94 is fixed on one side of the surface of the second piston head 93, and a knocking head 95 is fixed on the other end of the driving rod 94, and the driving rod 94 passes through the placement ring 7.

[0031] In this embodiment, under the action of the first piston tube 87, the connecting air pipe 91 drives the second piston head 93 to slide in the inner cavity of the second piston tube 92, and then under the action of the driving rod 94, the knocking head 95 knocks the filter plate 3, causing the filter plate 3 to vibrate.

[0032] like Figure 5 As shown, a connecting frame 10 is fixed to the surface of the second piston tube 92, and the other end of the connecting frame 10 is fixed to the inner cavity of the cooling tower body 1. In this embodiment, the setting of the connecting frame 10 provides support for the use of the second piston tube 92, thereby improving the practicality of the device.

[0033] like Figure 4 As shown, a limit rod 11 is provided on the surface of the first transmission rod 81 for rotation. The limit rod 11 is also provided on the surface of the second transmission rod 82. The other end of the limit rod 11 is fixed to the inner cavity of the cooling tower body 1. In this embodiment, the limit rod 11 is provided to limit the rotation of the first transmission rod 81 and the second transmission rod 82, thereby improving the stability of the first transmission rod 81 and the second transmission rod 82 during rotation.

[0034] The working principle of the present invention when used is as follows: When the cooling tower body 1 stops working, the staff can use the driving mechanism 4. Under the action of the motor 41, the driving gear 42 rotates, and the driven gear 43 engaged with the surface of the driving gear 42 can rotate the connecting pipe 44. Then, under the action of the connecting pipe 44, the rotating plate 45 drives the brush 5 to clean the filter plate 3. When the brush 5 is cleaning the filter plate 3, the staff can use the dust suction mechanism 6. Under the action of the dust suction pump 63, negative pressure is generated in the dust suction pipe 61, the dust storage box 62 and the dust suction groove 64, thereby sucking in the debris cleaned by the brush 5. When the motor 41 is working, the rotating disk 83 can be rotated under the action of the first transmission rod 81 and the second transmission rod 82, and the first hinged rod 84 hinged to the surface of the rotating disk 83 can enable the second hinged rod 85 to drive the first piston head 86 to slide in the inner cavity of the first piston tube 87, thereby making the vibration mechanism 9 work, and under the action of the connecting air pipe 91, the second piston tube 92, the second piston head 93 and the driving rod 94, the knocking head 95 acts on the surface of the filter plate 3, thereby making the filter plate 3 vibrate, and the auxiliary driving mechanism 4 and the brush 5 clean the filter plate 3, thereby improving the cleaning effect of the brush 5 on the filter plate 3.

[0035] The present invention is a closed cooling tower that facilitates sewage discharge. Through the coordinated operation of multiple mechanisms, the sewage discharge efficiency and cleaning effect of the cooling tower are effectively improved. The filter plate can be cleaned efficiently. The motor in the driving mechanism drives the active gear and the driven gear to rotate, causing the connecting pipe and the rotating plate to rotate, driving the brush to mechanically clean the surface of the filter plate, which can effectively remove attached scale, debris, etc. The vibration mechanism transmits power through the pumping mechanism, causing the knocking head to periodically knock on the filter plate, generating vibration, which promotes the fall of stubborn impurities in the pores of the filter plate. The brush further improves the cleaning effect and solves the problem of incomplete cleaning after the traditional filter screen is clogged. At the same time, the device can effectively collect and discharge debris. The dust suction mechanism uses the dust suction pump to form a negative pressure in the dust suction pipe, dust storage box and dust suction trough, promptly sucking in the debris cleaned by the brush and collecting it in the dust storage box to prevent the debris from accumulating again or clogging the filter plate. This achieves efficient collection and centralized discharge of debris and reduces the frequency of manual cleaning.

[0036] This invention boasts a high degree of power integration, utilizing a single power source. The drive mechanism and the pumping mechanism (which in turn drives the vibrating mechanism) are all driven by the same motor. Power distribution is achieved through gear and bevel transmissions, eliminating the need for multiple additional power units. This simplifies the equipment structure, reduces energy consumption, and reduces costs. Driven by the motor, each mechanism operates synchronously, enabling coordinated cleaning, vibration, and vacuuming processes, shortening the cleaning cycle and improving overall efficiency.

[0037] The structure of the present invention is stable and reliable: the limit rod provides rotation limit for the first transmission rod and the second transmission rod, ensuring the stability of the transmission process of the inflation mechanism; the connecting frame fixes the second piston tube, ensuring the structural reliability of the vibration mechanism when working, and avoiding loosening or damage of components due to vibration.

[0038] The present invention adopts a detachable design, and the filter plate is movably arranged on the placement ring, which is convenient for disassembly and maintenance. When deep cleaning or replacement of the filter plate is required, the operation is convenient, which improves the maintainability of the equipment.

[0039] The present invention is suitable for daily sewage discharge and cleaning of closed cooling towers, and can effectively deal with the problems of scale and impurity accumulation generated after long-term use of spray water, thereby extending the service life of the cooling tower, reducing equipment failures caused by blockage, and improving the practicality and stability of the cooling tower in scenarios such as industrial cooling.

[0040] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A closed cooling tower that is convenient for sewage discharge, characterized in that: It includes a cooling tower body, the inner cavity of the cooling tower body is provided with a spray mechanism body, the inner cavity of the cooling tower body is fixed with a placement ring, and the surface of the placement ring is movably provided with a filter plate; the inner cavity of the cooling tower body is provided with a driving mechanism, the surface of the driving mechanism is respectively connected to a brush, a dust suction mechanism and an air pumping mechanism, and the air pumping mechanism is connected to the vibration mechanism.

2. The closed cooling tower for easy sewage discharge according to claim 1, characterized in that: The driving mechanism includes a motor, a driving gear, a driven gear, a connecting pipe and a rotating plate. The motor is fixed to the inner cavity of the cooling tower body, the driving gear is fixed to the output shaft of the motor, the driven gear is meshed with the driving gear, the connecting pipe passes through and is fixed to the inner cavity of the driven gear, the rotating plate is fixed to the other end of the connecting pipe, and the brush is fixed to the surface of the rotating plate.

3. The closed cooling tower for easy sewage discharge according to claim 2, characterized in that: The dust suction mechanism includes a dust suction pipe, a dust storage box, a dust suction pump and a dust suction groove. The dust suction pipe rotates and is connected to one end of the connecting pipe. The dust suction groove is opened on the surface of the rotating plate. The dust storage box is connected to the other end of the dust suction pipe. The dust suction pump is connected to the surface of the dust storage box, and the dust suction pipe is connected to the dust suction groove.

4. The closed cooling tower for easy sewage discharge according to claim 3, characterized in that: The pumping mechanism includes a first transmission rod, a second transmission rod, a rotating disk, a first hinged rod, a second hinged rod, a first piston head and a first piston tube. The first transmission rod is connected to the output shaft of the motor through a bevel gear transmission, and the second transmission rod is connected to the other end of the first transmission rod through a bevel gear transmission. The rotating disk is fixed to one end of the second transmission rod, the first hinged rod is rotatably set on the surface of the rotating disk, one end of the second hinged rod is rotatably connected to the first hinged rod, the first piston head is fixed to the other end of the second hinged rod, and the first piston head is slidably set in the inner cavity of the first piston tube.

5. The closed cooling tower for easy sewage discharge according to claim 4, characterized in that: The vibration mechanism includes a connecting air pipe, a second piston tube, a second piston head, a driving rod and a knocking head. The connecting air pipe is connected to the surface of the first piston tube, and several second piston tubes are connected to the other end of the connecting air pipe. The second piston head is slidably arranged in the inner cavity of the second piston tube. One end of the driving rod is fixed to one side of the second piston head, and the knocking head is fixed to the other end of the driving rod. The driving rod passes through the placement ring and is slidably connected to the placement ring.

6. The closed cooling tower for easy sewage discharge according to claim 5, characterized in that: A connecting frame is fixed on the surface of the second piston tube, and the other end of the connecting frame is fixed to the inner cavity of the cooling tower body.

7. The closed cooling tower for easy sewage discharge according to claim 4, characterized in that: Limit rods are rotatably provided on the surfaces of the first transmission rod and the second transmission rod, and the other ends of the limit rods are fixed to the inner cavity of the cooling tower body.

8. The method for using a closed cooling tower for easy sewage discharge according to claim 6, characterized in that: The following steps are involved: S1. Drive cleaning: Start the motor, and through the meshing transmission of the driving gear and the driven gear, drive the connecting pipe and the rotating plate to rotate, so that the brush mechanically cleans the surface of the filter plate to remove attached scale and debris; S2, vibration-assisted cleaning: The air pressure change in the first piston tube is transmitted to the second piston tube through the connecting air pipe, pushing the second piston head to slide back and forth, driving the driving rod and the knocking head to periodically knock on the filter plate, causing the filter plate to vibrate and promote the removal of impurities in the pores; S3. Negative pressure vacuuming and sewage discharge: Start the vacuum pump to form negative pressure in the vacuum pipe, dust storage box and vacuum trough. The debris cleaned by the brush is sucked into the vacuum trough and stored in the dust storage box, and discharged through the sewage outlet regularly.

9. The method for using a closed cooling tower that facilitates sewage discharge according to claim 8, characterized in that: Also included is S4, filter plate maintenance: when deep cleaning or replacement of the filter plate is required, the connection structure between the filter plate and the placement ring is disassembled, and the filter plate is taken out for cleaning or replacement.

10. The method for using a closed cooling tower for easy sewage discharge according to claim 8, characterized in that: In step S1, the motor synchronously drives the pumping mechanism to operate, and the motor drives the first transmission rod and the second transmission rod to rotate through the bevel gear transmission, so that the rotating disk drives the first hinged rod and the second hinged rod to move, and drives the first piston head to slide back and forth in the first piston tube, so that periodic air pressure changes are generated in the first piston tube.

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