CN115875231B - Internal circulation air pump with brushless motor - Google Patents
Internal circulation air pump with brushless motor Download PDFInfo
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- CN115875231B CN115875231B CN202211227953.2A CN202211227953A CN115875231B CN 115875231 B CN115875231 B CN 115875231B CN 202211227953 A CN202211227953 A CN 202211227953A CN 115875231 B CN115875231 B CN 115875231B
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- 238000007789 sealing Methods 0.000 claims abstract description 61
- 230000005540 biological transmission Effects 0.000 claims abstract description 24
- 230000000712 assembly Effects 0.000 claims abstract description 5
- 238000000429 assembly Methods 0.000 claims abstract description 5
- 238000005086 pumping Methods 0.000 claims description 8
- 230000006835 compression Effects 0.000 claims description 7
- 238000007906 compression Methods 0.000 claims description 7
- 238000003780 insertion Methods 0.000 claims description 7
- 230000037431 insertion Effects 0.000 claims description 7
- 238000005520 cutting process Methods 0.000 claims description 4
- 230000033001 locomotion Effects 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 4
- 230000000149 penetrating effect Effects 0.000 claims description 4
- 238000013016 damping Methods 0.000 claims description 3
- 239000011159 matrix material Substances 0.000 abstract description 3
- 238000010892 electric spark Methods 0.000 description 2
- 210000001503 joint Anatomy 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005662 electromechanics Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
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Abstract
The application discloses an internal circulation air pump with a brushless motor, which comprises a pump body shell, a plunger assembly, a one-way valve assembly and a power assembly, wherein the plunger assembly is arranged on the pump body shell; the pump body shell comprises a shell matrix, a piston cavity, a rear transmission cavity, a motor cavity and a front transmission cavity; the plunger assembly comprises a sealing piston and a connecting side part; the one-way valve assemblies are arranged in the piston cavity, two one-way valve assembly is connected with the inlet of the circulating pipeline, and the other one is connected with the outlet of the circulating pipeline; the power assembly comprises a crank assembly, an adjusting deflector rod, a control rotating shaft, a telescopic longitudinal shaft and a brushless motor.
Description
Technical Field
The application relates to the technical field of electromechanics, in particular to an internal circulation air pump with a brushless motor.
Background
An internal circulation air pump is a device that pumps air in a circulation line. Internal circulation air pumps are widely used in practical production. Taking an air suspension as an example, the air spring of the air suspension is inflated by an air pump in the prior art.
The air pump in the prior art has large volume and inconvenient adjustment, so that the air pump which occupies the space as small as possible on the premise of ensuring the pumping effect needs to be designed, and the pumping efficiency can be conveniently adjusted.
Disclosure of Invention
An internal circulation air pump with a brushless motor comprises a pump body shell, a plunger assembly, a one-way valve assembly and a power assembly;
the pump body shell comprises a shell base body, a piston cavity formed on the right side of the rear half part of the shell base body, a rear transmission cavity arranged on the left side of the piston cavity, a motor cavity arranged on the right side of the front half part of the shell base body, and a front transmission cavity formed on the left side of the front half part of the shell base body;
the plunger assembly comprises a sealing piston and a connecting side part formed at the left side of the sealing piston, wherein the connecting side part penetrates through the left wall of a piston cavity and is inserted into a rear transmission cavity, and the left side of the connecting side rod is also provided with a splicing longitudinal hole along the vertical direction;
further:
the outer wall of the sealing piston is in sliding sealing connection with the inner wall of the piston cavity.
The one-way valve assemblies are arranged in the piston cavity, two one-way valve assembly is connected with the inlet of the circulating pipeline, and the other one is connected with the outlet of the circulating pipeline;
the power assembly is arranged in the pump body shell and used for driving the plunger assembly to reciprocate in a linear mode along the left-right direction.
As a further embodiment, the one-way valve assembly comprises:
the one-way jack is arranged on the right side of the piston cavity;
the sealing chamber is formed in the unidirectional jack, and a conical tightening part is formed at the end part of the sealing chamber;
further:
the inner wall of the conical tightening part is provided with a first sealing ring, and the outer wall of the conical sealing part is provided with a second sealing ring in sealing fit with the first sealing ring;
the circulating push rod is slidably inserted into one end, far away from the conical tightening part, of the unidirectional insertion hole, the end part of the circulating push rod is inserted into the sealing cavity and is formed with a sealing end, and the end part of the sealing end is also provided with a conical sealing part in sealing fit with the conical tightening part;
further:
the cross section of the flow push rod is cross-shaped; the cross section of the flow push rod is three-fork type.
Thanks to the improved technical scheme, the circulating push rod can slide in the unidirectional jack and allow gas to circulate through the gaps in the circulating push rod and the unidirectional jack.
And one end of the internal valve spring is in butt joint with the sealing end head, and the other end of the internal valve spring is in butt joint with the sealing cavity.
Further:
the one-way valve assembly positioned at the rear is used for air inlet, and the one-way valve assembly positioned at the front is used for air outlet.
As a further embodiment, the powertrain comprises:
the crank assembly comprises a rotary disc body rotatably arranged in the rear transmission cavity, a crank mandrel formed at the front end of the rotary disc body and inserted into the front transmission cavity, a rotary cylinder formed at the front end of the crank mandrel, and a driven bevel gear formed at the front end of the rotary cylinder;
the adjusting deflector rod comprises a radial slideway arranged in the rotating disc body along the radial direction, a radial through hole arranged at the rear end of the radial slideway, an adjusting mandrel rotatably arranged in the radial slideway, an external threaded rod formed on the adjusting mandrel, a driven adjusting bevel gear formed on the left side of the external threaded rod, an internal thread cylinder rotatably arranged on the external threaded rod, and a deflector rod body arranged at the rear end of the internal thread cylinder and penetrating through the radial through hole, wherein the deflector rod body is inserted in the inserting longitudinal hole;
the control rotating shaft comprises an axle center jack, an adjusting wide cavity, a locking front tooth, a control shaft body, a driving adjusting bevel gear, a driven inserting cylinder and a rotation stopping cutting, wherein the axle center jack is arranged at the axle center of the crank assembly and is communicated with the radial slideway;
the telescopic longitudinal shaft comprises a longitudinal shaft body which is slidably inserted in front of the shaft center inserting hole, an adjusting handle which is formed at the front end of the longitudinal shaft body and penetrates through the front transmission cavity, a locking disc body which is formed on the longitudinal shaft body and meshed with the locking front tooth, a rotation stopping inserting hole which is formed at the rear end of the longitudinal shaft body and meshed with the rotation stopping inserting strip on the side face of the longitudinal shaft body, and a longitudinal shaft pressure spring which is wound on the longitudinal shaft body and is positioned between the locking disc body and the driven inserting cylinder;
the brushless motor is arranged in the motor cavity, and a driving bevel gear meshed with the driven bevel gear is formed on an output shaft of the brushless motor.
The beneficial effects are that:
according to the internal circulation air pump with the brushless motor, the reciprocating movement of the plunger assembly is controlled through the power assembly, so that the unidirectional flow of gas is realized, and the unidirectional circulation of gas in the circulation pipeline is realized.
The internal circulation air pump with the brushless motor realizes the action of the power assembly through the brushless motor. Compared with a brushless motor with the same capacity, the brushless motor has small volume, and the volume of an air pump is greatly reduced. And the brushless motor removes the electric brush, and no electric spark is generated when the brush motor runs, so that the interference of the electric spark on the remote control wireless equipment is greatly reduced.
The utility model provides a take inner loop air pump of brushless motor, it can be adjusted the radial position of driving lever body, and then adjust crank assembly, adjust the radius of rotation of driving lever body when driving lever is rotatory a week, adjust the air current variation in the piston cavity when plunger assembly reciprocating motion a week, finally adjust the pumping efficiency of inner loop air pump.
The application method of the internal circulation air pump can realize pumping efficiency adjustment by pressing and rotating the adjusting handle backwards and simply operating:
the adjusting handle, the telescopic longitudinal shaft and the locking disc body are pressed backwards to enable the adjusting handle, the telescopic longitudinal shaft and the locking disc body to retract backwards against the damping of the longitudinal shaft compression spring, the locking disc body is separated from contact with the locking front teeth, and the telescopic longitudinal shaft can rotate relative to the crank assembly; the rotation adjusting handle, the telescopic longitudinal shaft and the rotation stopping jack drive the rotation stopping cutting, the driven inserting cylinder, the control shaft body and the driving adjusting bevel gear to rotate, so that the driven adjusting bevel gear, the adjusting mandrel and the external threaded rod are driven to rotate, and the internal threaded cylinder and the deflector rod body are driven to move along the radial slideway.
Description of the drawings:
in order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic view of the internal circulation air pump with brushless motor.
FIG. 2 is a cross-sectional view of one embodiment of the internal circulation air pump with a brushless motor.
Fig. 3 is a cross-sectional view of another embodiment of the internal circulation air pump with brushless motor.
Fig. 4 is a cross-sectional view of section A-A of fig. 2.
FIG. 5 is a cross-sectional view of one embodiment of section B-B of FIG. 2.
Fig. 6 is a cross-sectional view of another embodiment of section B-B of fig. 2.
Fig. 7 is an enlarged schematic view of the portion C in fig. 3.
FIG. 8 is a schematic view of an embodiment of a flow-through pushrod and seal tip.
FIG. 9 is a schematic view of another embodiment of a flow-through pushrod and seal tip.
Fig. 10 is an enlarged schematic view of the portion D in fig. 3.
FIG. 11 is a schematic view of an embodiment of a powertrain.
FIG. 12 is a schematic view of another embodiment of a powertrain.
In the figure:
1. the pump comprises a pump body shell, a shell matrix, a piston cavity, a rear transmission cavity, a motor cavity and a front transmission cavity, wherein the pump body shell, the shell matrix, the piston cavity, the rear transmission cavity, the motor cavity and the front transmission cavity are respectively arranged in sequence;
2. the plunger assembly 21 is used for sealing the piston 22 is used for connecting the side part 23 is used for plugging the longitudinal hole;
3. the valve comprises a one-way valve assembly 31, a one-way jack 32, a sealing chamber 32a, a conical tightening part 33, a flow push rod 33a, a sealing end 33b, a conical sealing part 34 and an internal pressure spring of the valve;
4. a power assembly;
41. the crank assembly, 41a, a rotary disc body, 41b, a crank mandrel, 41c, a rotary column body, 41d, and a driven wheel;
42. an adjusting deflector rod 42a, a radial slideway 42b, a radial through hole 42c, an adjusting mandrel 42d, an external threaded rod, 42e, an inner driven adjusting bevel gear, 42f, an inner thread cylinder, 42g, a deflector rod body;
43. the control rotating shaft, namely a 43a, an axle center jack, a 43b, an adjusting wide cavity, a 43c, a locking front tooth, a 43d, a control shaft body, a 43e, a driving adjusting bevel gear, a 43f, a driven inserting cylinder and a 43g anti-rotation inserting strip;
44. a telescoping longitudinal axis, 44a, a longitudinal axis body, 44b, an adjustment handle, 44c, locking disc body, 44d, stop rotary jack, 44e, longitudinal axial compression spring;
45. brushless motor 45a drive bevel gear.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present application more apparent, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments of the present application.
An internal circulation air pump with a brushless motor comprises a pump body shell 1, a plunger assembly 2, a one-way valve assembly 3 and a power assembly 4;
the pump body shell 1 comprises a shell base body 11, a piston cavity 12 formed on the right side of the rear half part of the shell base body 11, a rear transmission cavity 13 arranged on the left side of the piston cavity 12, a motor cavity 14 arranged on the right side of the front half part of the shell base body 11, and a front transmission cavity 15 formed on the left side of the front half part of the shell base body 11;
the plunger assembly 2 comprises a sealing piston 21 and a connecting side part 22 formed at the left side of the sealing piston 21, wherein the connecting side part 22 penetrates through the left wall of the piston cavity 12 and is inserted into the rear transmission cavity 13, and the left side of the connecting side rod 22 is also provided with an inserting longitudinal hole 23 along the vertical direction;
further:
the outer wall of the sealing piston 21 is in sliding sealing connection with the inner wall of the piston cavity 12.
The check valve assemblies 3 are arranged in the piston cavity 12, two check valve assemblies 3 are arranged, one check valve assembly 3 is connected with the inlet of the circulating pipeline, and the other check valve assembly is connected with the outlet of the circulating pipeline;
the power assembly 4 is arranged in the pump body shell 1 and is used for driving the plunger assembly 2 to reciprocate in a linear mode along the left-right direction.
As a further embodiment, the check valve assembly 3 includes:
a one-way jack 31 provided on the right side of the piston chamber 12;
a sealing chamber 32 formed in the unidirectional insertion hole 31, wherein a tapered tightening part 32a is formed at the end part of the sealing chamber 32;
further:
a first sealing ring is formed on the inner wall of the conical tightening part 32a, and a second sealing ring matched with the first sealing ring in a sealing way is formed on the outer wall of the conical sealing part 33b;
a flow push rod 33 slidably inserted into one end of the unidirectional jack 31 away from the tapered tightening part 32a, wherein the end of the flow push rod 33 is inserted into the sealing chamber 32 and is formed with a sealing end 33a, and the end of the sealing end 33a is also provided with a tapered sealing part 33b in sealing fit with the tapered tightening part 32a;
further:
the cross section of the flow push rod 33 is cross-shaped; the cross section of the flow push rod 33 is three-fork.
Thanks to the improved solution described above, the flow-through push rod 33 is capable of sliding in the unidirectional insertion hole 31 and allowing the gas to flow through the flow-through push rod 33 and the gap in the unidirectional insertion hole 31.
The in-valve compression spring 34 is wound around the flow push rod 33, and one end of the in-valve compression spring 34 abuts against the seal end 33a and the other end abuts against the seal chamber 32.
Further:
the one-way valve assembly 3 positioned at the rear is used for air intake, and the one-way valve assembly 3 positioned at the front is used for air exhaust.
As a further embodiment, the powertrain 4 includes:
the crank assembly 41 comprises a rotary disc body 41a rotatably arranged in the rear transmission cavity 13, a crank core shaft 41b formed at the front end of the rotary disc body 41a and inserted into the front transmission cavity 15, a rotary cylinder 41c formed at the front end of the crank core shaft 41b, and a driven bevel gear 41d formed at the front end of the rotary cylinder 41 c;
the adjusting deflector rod 42 comprises a radial slideway 42a arranged in the rotating disc body 42a along the radial direction, a radial through hole 42b arranged at the rear end of the radial slideway 42a, an adjusting mandrel 42c rotatably arranged in the radial slideway 42a, an external threaded rod 42d formed on the adjusting mandrel 42c, a driven adjusting bevel gear 42e formed on the left side of the external threaded rod 42d, an internal threaded cylinder 42f rotatably arranged on the external threaded rod 42d, and a deflector rod body 42g arranged at the rear end of the internal threaded cylinder 42f and penetrating through the radial through hole 42b, wherein the deflector rod body 42g is inserted in the inserting longitudinal hole 23;
the control rotating shaft 43 comprises an axle center inserting hole 43a which is arranged at the axle center of the crank assembly 41 and is communicated with the radial slideway 42a, an adjusting wide cavity 43b which is arranged in the middle of the axle center inserting hole 43a, a locking front tooth 43c which is formed at the front end of the adjusting wide cavity 43b, a control shaft body 43d which is arranged behind the axle center inserting hole 43a in a penetrating way, a driving adjusting bevel gear 43e which is formed at the rear end of the control shaft body 43d and is meshed with the driven adjusting bevel gear 42e, a driven inserting cylinder 43f which is formed at the front end of the control shaft body 43d, and a rotation stopping inserting strip 43g which is formed on the inner wall of the driven inserting cylinder 43 f;
the telescopic longitudinal shaft 44 comprises a longitudinal shaft body 44a which is slidably inserted in front of the shaft center inserting hole 43a, an adjusting handle 44b which is formed at the front end of the longitudinal shaft body 44a and penetrates through the front transmission cavity 15, a locking disc body 44c which is formed on the longitudinal shaft body 44a and is meshed with the locking front tooth 43c, a rotation stopping inserting hole 44d which is formed at the rear end of the longitudinal shaft body 44a and is meshed with the rotation stopping inserting strip 43g and is formed at the side surface of the longitudinal shaft body 44a, and a longitudinal shaft pressure spring 44e which is wound on the longitudinal shaft body 44a and is positioned between the locking disc body 44c and the driven inserting tube 43 f;
a brushless motor 45 provided in the motor chamber 14, and a drive bevel gear 45a engaged with the driven bevel gear 41d is formed on an output shaft of the brushless motor 45.
Based on the air pump, the application also discloses a use method of the internal circulation air pump, which comprises the following steps:
step 1, the power assembly 4 operates:
the brushless motor 45 and the drive bevel gear 45a rotate;
the driving bevel gear 45a acts on the driven bevel gear 41d to drive the crank assembly 41 and the adjusting deflector 42 to rotate;
step 2, the plunger assembly 2 reciprocates to realize unidirectional airflow flow:
the deflector rod body 42g rotates and drives the plunger assembly 2 to reciprocate in the left-right direction through the inserting longitudinal hole 23;
when the sealing piston 21 moves leftwards in the piston cavity 12, the pressure in the piston cavity 12 is reduced, the one-way valve assembly 3 positioned at the rear is opened, and the gas in the circulating pipeline is sucked into the piston cavity 12;
when the sealing piston 21 moves rightwards in the piston cavity 12, the pressure in the piston cavity 12 is increased, the front one-way valve assembly 3 is opened, and the gas in the piston cavity 12 is discharged into a circulating pipeline;
the gas realizes unidirectional circulation in the circulation pipeline.
As a further embodiment:
further comprising step 3, adjusting the pumping efficiency of the air pump:
turning off brushless motor 45;
rotational degrees of freedom of the unlock telescoping longitudinal axis 44 relative to the crank assembly 41:
pressing the adjustment handle 44b, the telescopic longitudinal shaft 44a and the locking disc 44c backwards to retract backwards against the damping of the longitudinal shaft compression spring 44e, wherein the locking disc 44c is out of contact with the locking front teeth 43c, and the telescopic longitudinal shaft 44 can rotate relative to the crank assembly 41;
turning the adjustment handle 44b, telescoping longitudinal axis 44a, and anti-rotation socket 44d;
the rotation stopping insertion hole 44d drives the rotation stopping cutting 43g, the driven insertion barrel 43f, the control shaft body 43d and the driving adjustment bevel gear 43e to rotate;
the driving adjusting bevel gear 43e acts on the driven adjusting bevel gear 42e to drive the adjusting mandrel 42c and the external threaded rod 42d to rotate, so as to drive the internal thread cylinder 42f and the deflector rod body 42g to move along the radial slideway 42 a;
by adjusting the turning radius of the deflector rod body 42g, the air intake and exhaust amount during one cycle of the reciprocating motion of the plunger assembly 2 are adjusted, and the pumping efficiency is further adjusted.
As a further embodiment, an adjusting motor is connected to the front of the adjusting handle 44b, the adjusting motor is arranged on the electric telescopic rod, and the electric telescopic rod is controlled to extend backwards, so that the adjusting motor and the adjusting handle 44b can be driven to move backwards, and the adjusting motor can rotate the adjusting handle 44b.
The above description is only of the preferred embodiments of the present application and is not intended to limit the present application, but various modifications and variations can be made to the present application by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the protection scope of the present application.
Claims (7)
1. An internal circulation air pump with a brushless motor, characterized in that: comprises a pump body shell (1), a plunger assembly (2), a one-way valve assembly (3) and a power assembly (4);
the pump body shell (1) comprises a shell base body (11), a piston cavity (12) formed on the right side of the rear half part of the shell base body (11), a rear transmission cavity (13) arranged on the left side of the piston cavity (12), a motor cavity (14) arranged on the right side of the front half part of the shell base body (11), and a front transmission cavity (15) formed on the left side of the front half part of the shell base body (11);
the plunger assembly (2) comprises a sealing piston (21) and a connecting side part (22) formed on the left side of the sealing piston (21), wherein the connecting side part (22) penetrates through the left wall of the piston cavity (12) and is inserted into the rear transmission cavity (13), and a plugging longitudinal hole (23) is further formed on the left side of the connecting side part (22) along the vertical direction;
the one-way valve assembly (3) is arranged in the piston cavity (12), two one-way valve assemblies (3) are arranged, one check valve assembly (3) is connected with the inlet of the circulating pipeline, and the other check valve assembly is connected with the outlet of the circulating pipeline;
the power assembly (4) is arranged in the pump body shell (1) and used for driving the plunger assembly (2) to reciprocate in a straight line along the left-right direction;
the check valve assembly (3) comprises:
the one-way jack (31) is arranged on the right side of the piston cavity (12);
a sealing chamber (32) formed in the unidirectional jack (31), wherein a conical tightening part (32 a) is formed at the end part of the sealing chamber (32);
a circulation push rod (33) which is slidably inserted into one end of the unidirectional insertion hole (31) far away from the conical tightening part (32 a), wherein the end part of the circulation push rod (33) is inserted into the sealing cavity (32) and is formed with a sealing end head (33 a), and the end part of the sealing end head (33 a) is also provided with a conical sealing part (33 b) which is in sealing fit with the conical tightening part (32 a);
an in-valve compression spring (34) which is wound on the flow push rod (33), wherein one end of the in-valve compression spring (34) is abutted with the sealing end (33 a) and the other end is abutted with the sealing cavity (32);
the powertrain (4) comprises:
the crank assembly (41) comprises a rotary disc body (41 a) rotatably arranged in the rear transmission cavity (13), a crank core shaft (41 b) formed at the front end of the rotary disc body (41 a) and inserted into the front transmission cavity (15), a rotary cylinder (41 c) formed at the front end of the crank core shaft (41 b) and a driven bevel gear (41 d) formed at the front end of the rotary cylinder (41 c);
the adjusting deflector rod (42) comprises a radial slideway (42 a) which is radially arranged in the rotary disc body (41 a), a radial through hole (42 b) which is arranged at the rear end of the radial slideway (42 a), an adjusting mandrel (42 c) which is rotatably arranged in the radial slideway (42 a), an external threaded rod (42 d) which is formed on the adjusting mandrel (42 c), a driven adjusting bevel gear (42 e) which is formed on the left side of the external threaded rod (42 d), an internal thread cylinder (42 f) which is rotatably arranged on the external threaded rod (42 d), and a deflector rod body (42 g) which is arranged at the rear end of the internal thread cylinder (42 f) and is arranged through the radial through hole (42 b), wherein the deflector rod body (42 g) is inserted into the inserting longitudinal hole (23);
the control rotating shaft (43) comprises an axle center inserting hole (43 a) which is arranged at the axle center of the crank assembly (41) and is communicated with the radial slideway (42 a), an adjusting wide cavity (43 b) which is arranged in the middle of the axle center inserting hole (43 a), a locking front tooth (43 c) which is formed at the front end of the adjusting wide cavity (43 b), a control shaft body (43 d) which is arranged behind the axle center inserting hole (43 a) in a penetrating way, a driving adjusting bevel gear (43 e) which is formed at the rear end of the control shaft body (43 d) and is meshed with the driven adjusting bevel gear (42 e), a driven inserting cylinder (43 f) which is formed at the front end of the control shaft body (43 d) and a rotation stopping inserting strip (43 g) which is formed on the inner wall of the driven inserting cylinder (43 f);
the telescopic longitudinal shaft (44) comprises a longitudinal shaft body (44 a) which is slidably inserted in front of the shaft center inserting hole (43 a), an adjusting handle (44 b) which is formed at the front end of the longitudinal shaft body (44 a) and penetrates through the front transmission cavity (15), a locking disc body (44 c) which is formed on the longitudinal shaft body (44 a) and is meshed with the locking front tooth (43 c), a rotation stopping inserting hole (44 d) which is formed at the rear end of the longitudinal shaft body (44 a) and is meshed with the rotation stopping inserting strip (43 g) is formed at the side surface of the rear end of the longitudinal shaft body (44 a), and a longitudinal shaft pressure spring (44 e) which is wound on the longitudinal shaft body (44 a) and is positioned between the locking disc body (44 c) and the driven inserting tube (43 f);
a brushless motor (45) provided in the motor chamber (14), wherein a drive bevel gear (45 a) engaged with the driven bevel gear (41 d) is formed on an output shaft of the brushless motor (45);
the connecting side part (22) is formed into a longitudinal plate structure with wide left and narrow right.
2. An internal circulation air pump with a brushless motor as defined in claim 1, wherein:
the inner wall of the conical tightening part (32 a) is provided with a first sealing ring, and the outer wall of the conical sealing part (33 b) is provided with a second sealing ring in sealing fit with the first sealing ring.
3. An internal circulation air pump with a brushless motor as defined in claim 2, wherein:
the outer wall of the sealing piston (21) is in sliding sealing connection with the inner wall of the piston cavity (12).
4. An internal circulation air pump with a brushless motor as defined in claim 3, wherein:
the cross section of the flow push rod (33) is cross-shaped.
5. An internal circulation air pump with a brushless motor as defined in claim 4, wherein:
the cross section of the flow push rod (33) is three-fork type.
6. An internal circulation air pump with a brushless motor as defined in claim 5, wherein:
the one-way valve assembly (3) positioned at the rear is used for air inlet, and the one-way valve assembly (3) positioned at the front is used for air outlet.
7. A method of using an internal circulation air pump using the internal circulation air pump with brushless motor of claim 1, characterized in that: the method comprises the following steps:
step 1, running a power assembly (4):
the brushless motor (45) and the drive bevel gear (45 a) rotate;
the driving bevel gear (45 a) acts on the driven bevel gear (41 d) to drive the crank assembly (41) and the adjusting deflector rod (42) to rotate;
step 2, the plunger assembly (2) reciprocates, so that unidirectional flow of air flow is realized:
the deflector rod body (42 g) rotates and drives the plunger assembly (2) to reciprocate in the left-right direction through the inserting longitudinal hole (23);
when the sealing piston (21) moves leftwards in the piston cavity (12), the pressure in the piston cavity (12) is reduced, the one-way valve assembly (3) positioned at the rear is opened, and the gas in the circulating pipeline is sucked into the piston cavity (12);
when the sealing piston (21) moves rightwards in the piston cavity (12), the pressure in the piston cavity (12) is increased, the one-way valve assembly (3) positioned in front is opened, and the gas in the piston cavity (12) is discharged into a circulating pipeline;
the gas realizes unidirectional circulation in the circulation pipeline;
further comprising step 3, adjusting the pumping efficiency of the air pump:
turning off the brushless motor (45);
-degree of freedom of rotation of the unlocking telescopic longitudinal axis (44) with respect to the crank assembly (41):
the adjusting handle (44 b), the telescopic longitudinal shaft (44) and the locking disc body (44 c) are pressed backwards to enable the adjusting handle to retract backwards against the damping of the longitudinal shaft pressure spring (44 e), the locking disc body (44 c) is separated from contact with the locking front teeth (43 c), and the telescopic longitudinal shaft (44) can rotate relative to the crank assembly (41);
the adjusting handle (44 b), the telescopic longitudinal shaft (44) and the rotation stopping jack (44 d) are rotated;
the rotation stopping jack (44 d) drives the rotation stopping cutting (43 g), the driven inserting cylinder (43 f), the control shaft body (43 d) and the driving adjusting bevel gear (43 e) to rotate;
the driving adjusting bevel gear (43 e) acts on the driven adjusting bevel gear (42 e) to drive the adjusting mandrel (42 c) and the external threaded rod (42 d) to rotate, so as to drive the internal thread cylinder (42 f) and the deflector rod body (42 g) to move along the radial slideway (42 a);
the air inlet and exhaust quantity during one cycle of the reciprocating motion of the plunger assembly (2) is adjusted by adjusting the rotation radius of the deflector rod body (42 g), so that the pumping efficiency is adjusted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211227953.2A CN115875231B (en) | 2022-10-09 | 2022-10-09 | Internal circulation air pump with brushless motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211227953.2A CN115875231B (en) | 2022-10-09 | 2022-10-09 | Internal circulation air pump with brushless motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115875231A CN115875231A (en) | 2023-03-31 |
| CN115875231B true CN115875231B (en) | 2023-10-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211227953.2A Active CN115875231B (en) | 2022-10-09 | 2022-10-09 | Internal circulation air pump with brushless motor |
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| CN (1) | CN115875231B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201827040U (en) * | 2010-06-12 | 2011-05-11 | 德帕姆(杭州)泵业科技有限公司 | Parallel double-cylinder metering pump |
| CN102261329A (en) * | 2010-05-26 | 2011-11-30 | 上海工程技术大学 | Stroke regulation mechanism for metering pump |
| CN103362769A (en) * | 2012-03-26 | 2013-10-23 | 德帕姆(杭州)泵业科技有限公司 | Metering pump with entire solid eccentric wheel travel adjustment mechanism |
| CN105114282A (en) * | 2015-09-24 | 2015-12-02 | 张有进 | Air compressor core |
| CN206190505U (en) * | 2016-11-21 | 2017-05-24 | 胜瑞兰工业设备（苏州）有限公司 | Adjustable length of stroke crank two -link structure |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3329123A4 (en) * | 2015-09-02 | 2019-03-27 | Active Tools International (HK) Ltd. | Air inflating device and tire repair machine comprising same |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102261329A (en) * | 2010-05-26 | 2011-11-30 | 上海工程技术大学 | Stroke regulation mechanism for metering pump |
| CN201827040U (en) * | 2010-06-12 | 2011-05-11 | 德帕姆(杭州)泵业科技有限公司 | Parallel double-cylinder metering pump |
| CN103362769A (en) * | 2012-03-26 | 2013-10-23 | 德帕姆(杭州)泵业科技有限公司 | Metering pump with entire solid eccentric wheel travel adjustment mechanism |
| CN105114282A (en) * | 2015-09-24 | 2015-12-02 | 张有进 | Air compressor core |
| CN206190505U (en) * | 2016-11-21 | 2017-05-24 | 胜瑞兰工业设备（苏州）有限公司 | Adjustable length of stroke crank two -link structure |
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| CN115875231A (en) | 2023-03-31 |
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