Automatic adjusting air supply system of air blower

Abstract

The invention discloses an automatic adjusting air supply system of an air blower, and relates to the technical field of air supply systems.The air supply system comprises an air blower body and an impeller body, the impeller body is rotationally arranged in the air blower body, the air supply system further comprises an adjusting unit, the adjusting unit comprises an air inlet pipe, and the air inlet end of the air blower body is connected with the air inlet pipe; the top end and the bottom end of the air inlet pipe are each rotationally connected with an adjusting plate through a positioning shaft, and the distance between the two adjusting plates is gradually decreased from the end away from the air blower body to the end close to the air blower body. When the air blower body conveys air, the air flows from the end, with the large distance, between the two adjusting plates to the end, with the small distance, between the two adjusting plates, so that the flow speed of the air is increased, the pressure in the air blower body is reduced, and even if part of the air flows back, due to the fact that the adjusting plates are obliquely arranged, the air flow speed is increased. And the adjusting plate blocks backflow gas, and the air supply effect of the air blower is improved.

Description

Technical Field

[0001] The invention relates to the technical field of air supply systems, in particular to an automatic blower regulating air supply system. Background Art

[0002] As is known to all, a blower is a commonly used fluid conveying machine, which sucks in air or other gas from one area through a rotating impeller, uses centrifugal force to pressurize or compress the gas, and transports the gas to another area. The blower is mainly composed of six parts: a motor, an air filter, a blower body, an air chamber, a base (also an oil tank), and an oil drip nozzle, so that the blower can provide the required air flow and pressure for the conveying pipeline, thereby realizing material transportation.

[0003] For example, the patent with the publication number CN112856666B and the publication date of September 14, 2021, entitled "A Roots blower automatic adjustment air supply system", aims to provide a Roots blower automatic adjustment air supply system, which can reduce the difference in air supply volume of each air supply branch pipe by self-adjustment to make it relatively balanced. It includes a Roots blower, the exhaust port of which is connected to a main air supply pipe, and the main air supply pipe is connected to multiple air supply branch pipes in parallel along the air supply direction; the air outlet of each air supply branch pipe is connected to a base outer cylinder, and the base outer cylinder is provided with an adjustment inner cylinder that can move up and down; the side wall of the adjustment inner cylinder is provided with a strip outlet along the height direction, and an elastic component is installed between the adjustment inner cylinder and the base outer cylinder.

[0004] The shortcoming of the existing technology is that the air outlet of the blower is connected to the air supply pipe, and the blower transports gas to each air supply branch pipe through the air supply pipe. Since there is a certain flow resistance in the connection between the air supply outlet of the blower and the air supply pipe, the internal pressure of the blower increases, causing gas reflux, which in turn affects the air supply effect of the blower. Summary of the invention

[0005] The purpose of the present invention is to provide a blower automatic regulating air supply system to solve the technical problems in the related art.

[0006] In order to achieve the above-mentioned purpose, the present invention provides the following technical solutions: a blower automatic adjustment air supply system, comprising a blower body and an impeller body, wherein the impeller body is rotatably arranged inside the blower body, and also comprises an adjustment unit, wherein the adjustment unit comprises an air inlet pipe, the air inlet end of the blower body is connected to the air inlet pipe, the top and bottom ends of the air inlet pipe are each rotatably connected to an adjustment plate via a positioning shaft, and the spacing between the two adjustment plates gradually decreases from an end away from the blower body to an end close to the blower body.

[0007] As mentioned above, the blower body is connected to the motor body, the output end of the motor body is connected to the transmission shaft, the transmission shaft is connected to the impeller body, and the impeller body is located inside the blower body.

[0008] As mentioned above, the regulating unit further includes a first elastic member, and the two regulating plates are connected between one end close to the blower body and the inner wall of the top end of the air inlet pipe respectively through a first elastic member.

[0009] As mentioned above, a filter unit is disposed at the end of the air intake pipe, and the filter unit includes a first filter net. The first filter net is disposed at the end of the air intake pipe, and a second filter net is disposed inside the air intake pipe.

[0010] As mentioned above, the filter unit further includes a third filter screen, a slot is provided at the top end of the air inlet pipe, a third filter screen is slidably arranged in the slot, and the third filter screen is located in the gap between the first filter screen and the second filter screen.

[0011] As mentioned above, the top and bottom ends of the third filter screen are connected to the air inlet pipe respectively through two parallel threaded rods.

[0012] As mentioned above, the mesh positions and sizes of the first filter, the second filter and the third filter are the same, so that the first filter, the second filter and the third filter can filter the transported gas.

[0013] As mentioned above, the impeller body is composed of a driven circular plate, a driven ring and an impeller plate. The driven circular plate and the driven ring are rotatably arranged inside the blower body. One end of the driven circular plate is connected to the transmission shaft, and the driven ring is close to one end of the intake pipe. A plurality of impeller plates are evenly arranged between the driven circular plate and the driven ring along the circumferential direction thereof.

[0014] As mentioned above, the blower body is provided with an air outlet pipe, and the air outlet pipe is connected to a plurality of exhaust pipes along the axial direction thereof.

[0015] As mentioned above, each of the exhaust pipes is provided with a balancing unit, and each of the balancing units is used to balance the gas discharged from each exhaust pipe.

[0016] The beneficial effect of the present invention is that when the blower body is conveying gas, the gas flows from the end where the distance between the two adjustment plates is larger to the end where the distance between the two adjustment plates is smaller, so that the flow rate of the gas increases and the pressure in the blower body is reduced. The reduction in pressure can reduce the impact force on the impeller body. Even if some gas refluxes, due to the inclined setting of the adjustment plate, the adjustment plate can block the reflux gas to a certain extent, thereby improving the air supply effect of the blower. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0018] Figure 1 A schematic diagram of a three-dimensional structure of an embodiment provided by the present invention; Figure 2 A schematic diagram of a partial three-dimensional structure of an embodiment provided by the present invention; Figure 3 For the present invention Figure 1 A schematic cross-sectional structure diagram of ; Figure 4 A schematic cross-sectional structure diagram of another embodiment provided by the present invention; Figure 5 For the present invention Figure 4 A schematic diagram of a partially enlarged cross-sectional structure at L; Figure 6 For the present invention Figure 4 A schematic diagram of a partially enlarged cross-sectional structure at M; Figure 7 For the present invention Figure 4 A schematic diagram of a partially enlarged cross-sectional structure at N; Figure 8 A schematic diagram of a partial cross-sectional structure of another embodiment provided by the present invention; Fig. 9 A schematic cross-sectional structure diagram of a motion state of another embodiment provided by the present invention; Fig.10 A schematic diagram of a partial cross-sectional structure of another embodiment provided by the present invention; Fig.11 For the present invention Fig.10 A schematic diagram of a partially enlarged cross-sectional structure at P; Fig.12 It is a schematic diagram of a partial cross-sectional structure of the exhaust pipe of the present invention in a ventilation state; Fig.13 It is a schematic diagram of the partial cross-sectional structure when the separation membrane of the present invention slides onto the first round rod; Fig.14 It is a partial three-dimensional structural schematic diagram of the connecting ring groove, the active rod and the cambered rod on the driven ring of the present invention.

[0019] Description of reference numerals: 1. Blower body; 2. Impeller body; 3. Inlet pipe; 4. Positioning shaft; 5. Adjustment plate; 6. Motor body; 7. Transmission shaft; 8. Driven circular plate; 9. Driven circular ring; 10. Impeller plate; 11. First filter screen; 12. Second filter screen; 13. Third filter screen; 14. Slot; 15. Threaded rod; 16. Arc block; 17. Driven teeth; 18. First shaft body; 19. Second shaft body; 20. Second elastic member; 21. Connecting ring groove; 22. Through groove; 23. Active rod; 24, cambered rod; 25, active teeth; 26, U-shaped frame; 27, vertical rod; 28, horizontal rod; 29, lifting plate; 30, air outlet pipe; 31, exhaust pipe; 32, balance frame; 33, air supply pipe; 34, partition membrane; 35, pressure relief rod; 36, first round rod; 37, second round rod; 38, truncated table member; 39, third elastic member; 40, air inlet channel; 41, auxiliary shaft; 42, balance rod; 43, sealing cover; 44, elastic belt; 45, first elastic member. DETAILED DESCRIPTION

[0020] In order to enable those skilled in the art to better understand the technical solution of the present invention, Figure 1 To Attachment Fig.14 The present invention is further described in detail.

[0021] An embodiment provided by the present invention relates to an automatic adjustment air supply system for a blower, comprising a blower body 1 and an impeller body 2, wherein the impeller body 2 is rotatably arranged inside the blower body 1, and also comprises an adjustment unit, wherein the adjustment unit comprises an air intake pipe 3, the air intake end of the blower body 1 is connected to the air intake pipe 3, the top and bottom ends of the air intake pipe 3 are each rotatably connected to an adjustment plate 5 via a positioning shaft 4, and the spacing between the two adjustment plates 5 gradually decreases from an end away from the blower body 1 to an end close to the blower body 1.

[0022] Specifically, the blower is a device for gas transportation. An annular chamber is arranged inside the blower body 1. The air inlet pipe 3 is a square tube. A positioning shaft 4 is arranged at the top and bottom of the air inlet pipe 3. An adjusting plate 5 is rotatably arranged on each of the two positioning shafts 4. The middle part of the adjusting plate 5 is rotatably arranged on the positioning shaft 4. The blower body 1 is connected to a motor body 6. The output end of the motor body 6 is connected to a transmission shaft 7. The transmission shaft 7 is connected to an impeller body 2. The impeller body 2 is located inside the blower body 1, that is, the impeller body 2 is rotatably installed in the chamber. The impeller body 2 is composed of a driven circular plate 8, a driven ring 9 and an impeller plate 10. The driven circular plate 8 and the driven ring 9 are rotatably arranged inside the blower body 1 (the driven circular plate 8 and the driven ring 9 are rotatably arranged inside the blower body 1). The driven circular plate 8 is connected to the transmission shaft 7 and the driven ring 9 is close to one end of the air inlet pipe 3. A plurality of impeller plates 10 are evenly arranged between the driven circular plate 8 and the driven ring 9 along the circumferential direction thereof. The driven circular plate 8 and the impeller plate 10 are driven to rotate by the motor body 6 and the transmission shaft 7. When the motor body 6 rotates and drives the impeller body 2 to rotate, the gas between the impeller plates 10 in the impeller body 2 also rotates, and is thrown out under the action of centrifugal force. The gas flow rate increases, so that the gas converts kinetic energy into static pressure energy during the flow, and then as the fluid is pressurized, the static pressure energy is converted into velocity energy again, and the gas is discharged through the exhaust port, and a certain negative pressure is formed in the middle of the impeller plate 10. Due to the negative pressure at the inlet, the external gas The body is immediately replenished under the action of atmospheric pressure, and the gas is continuously discharged and replenished under the continuous rotation of the impeller body 2, so as to achieve the purpose of continuous air supply. The air supply principle of the blower is common knowledge in the field and will not be repeated. The adjustment unit also includes a first elastic member 45, and the two adjustment plates 5 are connected between one end close to the blower body 1 and the inner wall of the top end of the air inlet pipe 3 through a first elastic member 45. The first elastic member 45 (the first elastic member 45 is an element capable of telescopic reset, preferably a spring) provides a certain elastic force for the adjustment plate 5, so that the two adjustment plates 5 are in an inclined state, that is, under the elastic force of the two first elastic members 45, the distance between the two adjustment plates 5 is from the end away from the blower body 1 to the end close to the blower body 1 The opening between the two adjusting plates 5 gradually decreases from the air inlet end to the impeller body 2 end. When the motor body 6 transports gas through the impeller body 2, the gas enters the blower body 1 from between the two adjusting plates 5 in the air inlet pipe 3. Since the gas has a certain initial velocity when entering the impeller body 2, the gas has been impacting the impeller body 2 to a certain extent during long-term use, which can easily cause damage to the impeller body 2. In this embodiment, the gas is transported through the blower body 1 and the impeller body 2, and the gas flows from the end with a larger spacing between the two adjusting plates 5 to the end with a smaller spacing between the two adjusting plates 5, that is, the gas intake path is gradually contracted, thereby increasing the flow rate of the gas.And the pressure (static pressure) decreases (from the continuity equation of low-speed fluid and Bernoulli equation: when the pipeline contracts, the flow rate of the gas increases and the pressure (static pressure) decreases), the first elastic member 45 has a certain elastic force, and the adjustment plate 5 can swing slightly. Even if the adjustment plate 5 swings back and forth, the gas intake path is gradually contracted, so that the gas can enter the blower body 1 along the outer surface of the adjustment plate 5, so that the adjustment plate 5 can stably transport the gas. At the same time, the reduction in pressure can reduce the impact of the gas on the impeller body 2 and increase the service life of the impeller body 2. Even if part of the gas refluxes in the internal chamber of the blower body 1 due to the increase in the gas flow rate, in this embodiment, the tilted adjustment plate 5 has a certain blocking effect on the reflux gas, thereby improving the air supply effect of the blower.

[0023] The shortcoming of the existing technology is that the air outlet of the blower is connected to the air supply pipe, and the blower transports gas to each air supply branch pipe through the air supply pipe. Since there is a certain flow resistance in the connection between the air supply outlet of the blower and the air supply pipe, the internal pressure of the blower increases, causing gas reflux, which in turn affects the air supply effect of the blower.

[0024] The beneficial effect of this embodiment is that when the blower body 1 is conveying gas, the gas flows from the end where the distance between the two adjustment plates 5 is larger to the end where the distance between the two adjustment plates 5 is smaller, so that the flow rate of the gas is increased and the pressure in the blower body 1 is reduced. The reduction in pressure can reduce the impact force on the impeller body 2. Even if some gas refluxes, due to the inclined setting of the adjustment plate 5, the adjustment plate 5 can block the reflux gas to a certain extent, thereby improving the air supply effect of the blower.

[0025] In another embodiment provided by the present invention, a filter unit is provided at the end of the air intake pipe 3, and the filter unit includes a first filter screen 11, the end of the air intake pipe 3 is provided with the first filter screen 11, and the interior of the air intake pipe 3 is provided with a second filter screen 12; the filter unit also includes a third filter screen 13, and the top end of the air intake pipe 3 is provided with a slot 14, and the third filter screen 13 is slidably provided in the slot 14, and the third filter screen 13 is located in the gap between the first filter screen 11 and the second filter screen 12; the top and bottom ends of the third filter screen 13 are respectively connected by two parallel threaded rods 15 is connected to the air inlet pipe 3, that is, the top and bottom ends of the air inlet pipe 3 are evenly provided with a plurality of threaded holes, and a threaded rod 15 is rotatably provided on the third filter screen 13, and the position of the third filter screen 13 in the gap between the first filter screen 11 and the second filter screen 12 can be adjusted through the threaded connection of the threaded rod 15 and the threaded hole, that is, the third filter screen 13 is driven to move radially; the mesh positions and sizes of the first filter screen 11, the second filter screen 12 and the third filter screen 13 are the same, so that the first filter screen 11, the second filter screen 12 and the third filter screen 13 can filter the transported gas.

[0026] Specifically, when negative pressure is generated in the blower body 1 and the impeller body 2 to adsorb the gas, the negative pressure generated by the rotation of the impeller body 2 is relatively large, so that the negative pressure at the end of the air inlet pipe 3 when adsorbing the gas is relatively large, and thus impurities with a large volume but a light mass (such as plastic bags, toilet paper and other large and light impurities) may be adsorbed. The impurities enter the chamber of the blower body 1 and may cause damage to the impeller body 2 or be entangled on the impeller body 2. In this embodiment, a filter unit is provided at the air inlet end of the air inlet pipe 3 to prevent impurities from being sucked into the air inlet pipe 3. When the blower body 1 and the impeller body 2 transport the gas, the gas is sucked out from the first The first filter 11, the third filter 13 and the second filter 12 enter the air inlet pipe 3, and the gas entering the air inlet pipe 3 is filtered by the first filter 11, the third filter 13 and the second filter 12 to prevent impurities from entering the chamber of the blower body 1. The first filter 11 and the second filter 12 have the same specifications, and the mesh positions and sizes of the first filter 11, the second filter 12 and the third filter 13 are the same. When it is necessary to adjust the mesh size between the first filter 11, the third filter 13 and the second filter 12, the staff uses a tool to twist the threaded rod 15 through the threaded rod 1 The third filter screen 13 is driven to slide in the gap between the first filter screen 11 and the second filter screen 12, so that the mesh holes on the third filter screen 13 and the mesh holes on the first filter screen 11 and the second filter screen 12 are misaligned to a certain extent, so that the mesh sizes of the first filter screen 11, the second filter screen 12 and the third filter screen 13 are all changed. By adjusting the position of the third filter screen 13 in the gap between the first filter screen 11 and the second filter screen 12, the mesh sizes of the first filter screen 11, the second filter screen 12 and the third filter screen 13 can be adjusted. It is known to those skilled in the art that when the third filter screen 13 When the mesh holes on the filter screen 11 and the mesh holes on the first filter screen 11 (or the second filter screen 12) completely overlap, the mesh holes on the first filter screen 11, the second filter screen 12 and the third filter screen 13 are the largest. In addition, when part of the gas refluxes in the internal chamber of the blower body 1 due to the increase in gas flow rate, the refluxed gas can generate a reverse airflow to the first filter screen 11, the second filter screen 12 and the third filter screen 13, thereby cleaning the first filter screen 11, the second filter screen 12 and the third filter screen 13, thereby improving the stability of the first filter screen 11, the second filter screen 12 and the third filter screen 13 in filtering the gas.

[0027] In another embodiment provided by the present invention, the connection part of the two adjusting plates 5 and the corresponding positioning shaft 4 is a cambered block 16, that is, a cambered block 16 is provided in the middle of each of the two adjusting plates 5, the cambered block 16 and the adjusting plate 5 are fixedly connected, the cambered block 16 and the corresponding positioning shaft 4 are rotatably arranged, the cambered block 16 and the adjusting plate 5 can rotate around the positioning shaft 4, the two cambered blocks 16 are rotatably arranged on the corresponding positioning shaft 4, the cambered block 16 is evenly provided with a plurality of driven teeth 17 along its circumferential direction, and the impeller body 2 is arranged in the chamber inside the blower body 1, the impeller body 2 can slide along the axial direction of the transmission shaft 7 in the chamber inside the blower body 1, that is, when the impeller body 2 is impacted by the gas during gas transportation, the impeller body 2 can slide along the axial direction of the transmission shaft 7, and the impeller body 2 can also be driven to rotate by the rotating shaft 7. The transmission shaft 7 is divided into a first shaft body 18 and a second shaft body 19. The first shaft body 18 is connected to the driven circular plate 8, and the second shaft body 19 is connected to the output end of the motor body 6. The second shaft body 19 can drive the first shaft body 18 to rotate ( The two are sleeved with each other and the sleeved part is a non-rotating body), the first shaft body 18 and the second shaft body 19 are connected by a second elastic member 20, the impeller body 2 can also rotate in the chamber inside the blower body 1, and a connecting ring groove 21 is provided on the side wall of the driven ring 9 on the impeller body 2 near the end of the adjustment plate 5, and a through groove 22 is provided at the top and bottom ends of the intake pipe 3, and an active rod 23 is slidably installed in each of the two through grooves 22, and an arc rod 24 is connected to one end of the two active rods 23 located in the blower body 1, and the two arc rods 2 4 are both installed in the connecting ring groove 21 by means of rotational fit, a plurality of active teeth 25 are evenly arranged on the two active rods 23, and the active teeth 25 on the two active rods 23 are respectively meshed with the driven teeth 17 on the corresponding arc surface blocks 16, and the opposite surfaces of the two adjustment plates 5 are both inclined surfaces, that is, the inclined surfaces of the two adjustment plates 5 are gradually inclined from the end away from the blower body 1 to the end close to the blower body 1, so that the distance between the two adjustment plates 5 gradually decreases from the end away from the blower body 1 to the end close to the blower body 1.

[0028] Specifically, when the impeller body 2 absorbs and transports gas, it is always impacted by the gas because the impeller body 2 has no buffer structure. In this embodiment, the transmission shaft 7 is set as a telescopic structure, and the first shaft 18 and the second shaft 19 of the transmission shaft 7 are connected by a second elastic member 20. The second elastic member 20 (the second elastic member 20 is an element capable of telescopic reset, preferably a spring) provides a certain elastic force for the first shaft 18 and the second shaft 19, so that the first shaft 18 and the second shaft 19 can slide relative to each other. When the impeller body 2 rotates to generate negative pressure to absorb gas, the impact force generated by the gas acts on the impeller body 2. When the rotation speed of the impeller body 2 increases The impact force generated by the gas will push the impeller body 2 to slide along the axial direction of the first shaft 18 and the second shaft 19, so that the impeller body 2 slides toward the end close to the motor body 6. Due to the rotation arrangement between the connecting ring groove 21 and the cambered rod 24 on the driven ring 9 on the impeller body 2, the impeller body 2 will not affect the cambered rod 24 and the active rod 23 when it rotates. When the impeller body 2 slides toward the end close to the motor body 6, the driven ring 9 on the impeller body 2 is connected through the axial direction between the connecting ring groove 21 and the cambered rod 24 (that is, the axial direction of the transmission shaft 7), so that the driven ring 9 drives the active rod 23 to slide toward the end close to the motor body 6 through the connecting ring groove 21 and the cambered rod 24 (such as Fig.14As shown, the cross-sections of the connecting ring groove 21 and the arc surface rod 24 are both T-shaped, the connecting ring groove 21 is an annular groove with a T-shaped cross-section, the arc surface rod 24 is an arc rod with a T-shaped cross-section, and the two arc surface rods 24 can also be replaced by a T-shaped cross-section T-shaped ring, which is connected to the two active rods 23 through a T-shaped ring). Since the active teeth 25 on the active rod 23 and the driven teeth 17 on the arc surface block 16 are meshed with each other, the active rod 23 drives the adjustment plate 5 through the arc surface block 16 to position the shaft 4 is rotated around the center, so that the distance between the two adjustment plates 5 close to one end of the blower body 1 is reduced, thereby reducing the pressure in the blower body 1, so that the impact force of the airflow in the blower body 1 on the impeller body 2 is reduced. At the same time, the driven circular plate 8 on the impeller body 2 pushes the first shaft body 18 to slide toward one end of the second shaft body 19, and the first shaft body 18 squeezes the second elastic member 20, so that the second elastic member 20 is in a compressed state; since the impact force of the airflow in the blower body 1 on the impeller body 2 is reduced, The second elastic member 20 pushes the first shaft 18 to slide away from the end of the motor body 6 under the rebound effect of the second elastic member 20, and the first shaft 18 pushes the impeller body 2 to slide away from the end of the motor body 6. The driven ring 9 on the impeller body 2 drives the active rod 23 to slide away from the end of the motor body 6 through the arc rod 24. Since the active teeth 25 on the active rod 23 and the driven teeth 17 on the arc block 16 are meshed with each other, the active rod 23 drives the adjustment plate 5 to rotate around the positioning shaft 4 through the arc block 16, so that the distance between the two adjustment plates 5 close to the end of the blower body 1 is increased, so that the flow rate of the gas entering the blower body 1 is reduced; through the sliding of the impeller body 2 in the axial direction of the first shaft 18 and the second shaft 19, the second elastic member 20 can perform a certain buffering operation on the impact force of the gas on the impeller body 2. At the same time, the swinging adjustment plate 5 can adjust the flow rate entering the blower body 1 to prevent the impeller body 2 from being damaged.

[0029] In another embodiment provided by the present invention, an inverted U-shaped frame 26 is provided at the top of the third filter screen 13, and the U-shaped frame 26 is composed of two vertical rods 27 and a horizontal rod 28. The two vertical rods 27 are connected to the top of the third filter screen 13, and the bottom ends of the horizontal rod 28 and the third filter screen 13 are respectively provided with an inclined surface. One end of the two active rods 23 close to the blower body 1 is respectively connected to a lifting plate 29, and the top of the two lifting plates 29 is respectively provided with an inclined surface, and the inclined surfaces on the two lifting plates 29 are respectively wedge-shapedly matched with their corresponding inclined surfaces.

[0030] Specifically, when the impeller body 2 slides toward the end close to the motor body 6, the driven ring 9 on the impeller body 2 drives the cambered rod 24 and the active rod 23 to slide toward the end close to the motor body 6 through the connecting ring groove 21. Since the end of the active rod 23 is connected to the lifting plate 29, and the inclined surfaces on the lifting plate 29 are respectively wedge-matched with the corresponding inclined surfaces, and the inclined surfaces and the inclined surfaces on the lifting plate 29 are inclined downward from the end away from the active rod 23 to the end close to the active rod 23, the lifting plate 29 can push the U-shaped frame 26 and the third filter screen 13 to slide toward the top side of the intake pipe 3, thereby adjusting the third filter screen 1 3 is located in the gap between the first filter screen 11 and the second filter screen 12, so that the mesh holes on the third filter screen 13 and the mesh holes on the first filter screen 11 and the second filter screen 12 are misaligned to a certain extent, so that the mesh holes on the first filter screen 11, the second filter screen 12 and the third filter screen 13 become smaller, thereby reducing the gas from the first filter screen 11, the second filter screen 12 and the third filter screen 13 to flow into the intake pipe 3, thereby reducing the pressure in the blower body 1, so that the impact force of the airflow in the blower body 1 on the impeller body 2 is reduced, and at the same time, the driven circular plate 8 on the impeller body 2 pushes the first shaft body 18 to the second shaft body 19. The first shaft 18 squeezes the second elastic member 20, so that the second elastic member 20 is in a compressed state; due to the reduced impact force of the airflow in the blower body 1 on the impeller body 2, under the rebound effect of the second elastic member 20, the second elastic member 20 pushes the first shaft 18 to slide away from the motor body 6, and the first shaft 18 pushes the impeller body 2 to slide away from the motor body 6. The driven ring 9 on the impeller body 2 drives the active rod 23 to slide away from the motor body 6 through the arc rod 24, and the active rod 23 drives the lifting plate 29 to slide away from the motor body 6. Under the gravity of the third filter 13 itself Under the action, the third filter 13 slides toward the bottom end of the air inlet pipe 3, so that the mesh holes on the first filter 11, the second filter 12 and the third filter 13 become larger, so that the flow rate of the gas entering the blower body 1 is reduced; through the reciprocating sliding of the impeller body 2 in the axial direction of the first shaft 18 and the second shaft 19, the second elastic member 20 can buffer the impact force of the gas on the impeller body 2 to a certain extent. At the same time, by adjusting the changes in the mesh size of the first filter 11, the second filter 12 and the third filter 13, the flow rate entering the blower body 1 can be adjusted to prevent the impeller body 2 from being damaged.

[0031] In another embodiment provided by the present invention, an air outlet pipe 30 is provided on the blower body 1, and a plurality of exhaust pipes 31 are connected to the air outlet pipe 30 along its axial direction; each of the exhaust pipes 31 is provided with a balancing unit, and each of the balancing units is used to balance the gas discharged from each exhaust pipe 31, and the balancing unit includes a balancing frame 32, one end of the balancing frame 32 is connected to the air outlet pipe 30 through the exhaust pipe 31, and the other end of the balancing frame 32 is connected to the air supply pipe 33, and a partition membrane 34 is provided in the balancing frame 32, and the partition membrane 34 is made of rubber material, so that the partition membrane 34 has a certain elastic deformation ability, and a pressure relief rod 35 is provided on the balancing frame 32, and the end of the pressure relief rod 35 is slidingly sealed with the middle part of the partition membrane 34, and one end of the pressure relief rod 35 is a first round rod 36, and the first round rod 36 is connected to the balancing frame 32 The other end of the pressure relief rod 35 is a second round rod 37, and the second round rod 37 is slidably sealed with the middle part of the partition membrane 34. The radius of the first round rod 36 is smaller than the radius of the second round rod 37. The first round rod 36 and the second round rod 37 are connected by a truncated cone 38. A third elastic member 39 is sleeved on the outer wall of the pressure relief rod 35, and one end of the third elastic member 39 is connected to the balance frame 32, and the other end of the third elastic member 39 is connected to the partition membrane 34. The balance frame 32 is located at one end of the exhaust pipe 31 and is provided with an intake channel 40. An auxiliary shaft 41 is provided between the two side walls of the balance frame 32. A balance rod 42 is rotatably mounted on the auxiliary shaft 41. A sealing cover 43 is connected to one end of the balance rod 42. The sealing cover 43 is used to seal the end of the intake channel 40. The other end of the balance rod 42 is connected to the partition membrane 34 through an elastic band 44.

[0032] Specifically, after the gas in the blower body 1 is transported to the outlet pipe 30 through the impeller body 2, the gas in the outlet pipe 30 moves along its axial direction, and the gas in the outlet pipe 30 is transported to each exhaust pipe 31. Since the positions of the exhaust pipes 31 on the outlet pipe 30 are different, the distances between the exhaust pipes 31 and the blower body 1 are different. The gas delivery amount in the exhaust pipe 31 farther from the blower body 1 is smaller than the gas delivery amount in the exhaust pipe 31 closer to the blower body 1, thereby causing uneven gas delivery. In this embodiment, a balancing unit is provided on the exhaust pipe 31 to balance the gas in each exhaust pipe 31. When the gas in the blower body 1 is transported to the outlet pipe 30 through the impeller body 2, the gas in the outlet pipe 30 is transported to each exhaust pipe 31, and the gas is transported to the air inlet channel 40. The gas in the air inlet channel 40 pushes the sealing cover 43. Under the impact of the gas, the sealing cover 43 drives the balance bar 42 to rotate around the auxiliary shaft 41, so that the sealing cover 43 releases the sealing operation of the air inlet channel 40, so that the gas in the air inlet channel 40 can enter the balance frame 32. The gas is discharged from the balance frame 32 into the air delivery pipe 33, and is transported to different cavities that need air intake through the air delivery pipe 33. During the rotation around the auxiliary shaft 41, the balance bar 42 stretches the elastic belt 44 to a certain extent, and the partition membrane 34 slides toward one end of the first round rod 36 under the push of the gas in the balance frame 32. Since the partition membrane 34 is made of rubber material, the partition membrane 34 has a certain elastic deformation ability. The partition membrane 34 moves toward one end of the first round rod 36, and the partition membrane 34 squeezes the third elastic member 39 (the second elastic member 20 is a component capable of telescopic reset, preferably a spring), so that the third elastic member 39 is in a compressed state. When the flow rate of the gas in the exhaust pipe 31 becomes smaller, the third elastic member 39 rebounds. Under the action of the third elastic member 39, the partition membrane 34 is pushed to slide toward one end of the second round rod 37, reducing the tension applied by the elastic band 44 to the sealing cover 43, so that the sealing cover 43 will not seal the air inlet passage 40, but slowly enter the gas under the push of the gas, so that the gas delivery reaches a certain balance. When the flow rate of the gas in the exhaust pipe 31 increases (especially in the exhaust pipe 31 close to one end of the blower body 1), due to the impact of the gas on the sealing cover 43, the sealing cover 43 opens the air inlet passage 40 more, and the impact of the gas on the partition membrane 34 is greater, so that the partition membrane 34 slides from the second round rod 37 to the first round rod 36 (such as Fig.13As shown), the partition membrane 34 is separated from the second round rod 37, so that the space between the partition membrane 34 and the first round rod 36 in the balance frame 32 can also store gas. It is known to those skilled in the art that a connecting tube body is provided in the space between the first round rod 36 and the partition membrane 34 in the balance frame 32, and the connecting tube body is connected to other exhaust pipes 31 or outlet pipes 30, so that the gas in the space between the first round rod 36 and the partition membrane 34 in the balance frame 32 can be transported to other exhaust pipes 31 or outlet pipes 30, and at this time, the elastic band 44 is stretched to the maximum, and the elastic band 44 drives The balance bar 42 rotates around the auxiliary shaft 41, so that the balance bar 42 drives the sealing cover 43 to seal the end of the intake channel 40. At the same time, the compression of the third elastic member 39 reaches the maximum. Under the rebound action of the third elastic member 39, the third elastic member 39 pushes the partition membrane 34 to slide onto the second round rod 37, so that the partition membrane 34 and the second round rod 37 are re-slid and sealed. The reciprocating motion of the partition membrane 34 and the reciprocating swing of the sealing cover 43 driven by the balance bar 42 make the gas delivery amount in the balance frame 32 reach a balanced delivery state, so that the gas delivery amount in each exhaust pipe 31 is relatively uniform.

[0033] The above description is only by way of illustration of certain exemplary embodiments of the present invention. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A blower automatic regulating air supply system, comprising a blower body and an impeller body, wherein the impeller body is rotatably arranged inside the blower body, characterized in that: It also includes an adjustment unit, which includes an air intake pipe. The air intake end of the blower body is connected to the air intake pipe. The top and bottom ends of the air intake pipe are each rotatably connected to an adjustment plate via a positioning shaft. The distance between the two adjustment plates gradually decreases from the end away from the blower body to the end close to the blower body.

2. The blower automatic regulating air supply system according to claim 1, characterized in that: The blower body is connected to a motor body, an output end of the motor body is connected to a transmission shaft, the transmission shaft is connected to an impeller body, and the impeller body is located inside the blower body.

3. The blower automatic regulating air supply system according to claim 1, characterized in that: The regulating unit further comprises a first elastic member, and the two regulating plates are connected between one end close to the blower body and the inner wall of the top end of the air inlet pipe respectively through a first elastic member.

4. The blower automatic regulating air supply system according to claim 1, characterized in that: A filter unit is disposed at the end of the air intake pipe, and the filter unit includes a first filter net. The first filter net is disposed at the end of the air intake pipe, and a second filter net is disposed inside the air intake pipe.

5. The blower automatic regulating air supply system according to claim 4, characterized in that: The filter unit further includes a third filter screen. A slot is provided at the top of the air inlet pipe. The third filter screen is slidably arranged in the slot. The third filter screen is located in the gap between the first filter screen and the second filter screen.

6. The blower automatic regulating air supply system according to claim 5, characterized in that: The top end and the bottom end of the third filter screen are connected to the air inlet pipe through two parallel threaded rods respectively.

7. The blower automatic regulating air supply system according to claim 5, characterized in that: The mesh positions and sizes of the first filter, the second filter and the third filter are the same, so that the first filter, the second filter and the third filter can filter the transported gas.

8. The blower automatic regulating air supply system according to claim 1, characterized in that: The impeller body is composed of a driven circular plate, a driven ring and an impeller plate. The driven circular plate and the driven ring are rotatably arranged inside the blower body. One end of the driven circular plate is connected to the transmission shaft. The driven ring is close to one end of the intake pipe. A plurality of impeller plates are evenly arranged between the driven circular plate and the driven ring along the circumferential direction thereof.

9. The blower automatic regulating air supply system according to claim 1, characterized in that: The blower body is provided with an air outlet pipe, and the air outlet pipe is connected with a plurality of exhaust pipes along the axial direction thereof.

10. The blower automatic regulating air supply system according to claim 9, characterized in that: Each of the exhaust pipes is provided with a balancing unit, and each of the balancing units is used to balance the gas discharged from each exhaust pipe.

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