CN114320825A - Double-cylinder type inflator pump - Google Patents
Double-cylinder type inflator pump Download PDFInfo
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- CN114320825A CN114320825A CN202111389654.4A CN202111389654A CN114320825A CN 114320825 A CN114320825 A CN 114320825A CN 202111389654 A CN202111389654 A CN 202111389654A CN 114320825 A CN114320825 A CN 114320825A
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- 238000003860 storage Methods 0.000 claims abstract description 33
- 230000007246 mechanism Effects 0.000 claims abstract description 23
- 230000003014 reinforcing effect Effects 0.000 claims description 6
- 230000000149 penetrating effect Effects 0.000 claims description 4
- 238000000034 method Methods 0.000 description 9
- 230000008569 process Effects 0.000 description 8
- 230000009977 dual effect Effects 0.000 description 7
- 230000002035 prolonged effect Effects 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 125000003003 spiro group Chemical group 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
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Abstract
The invention belongs to the technical field of inflator pumps, and particularly relates to a double-cylinder type inflator pump which comprises a direct current motor and a double-connecting-rod assembly, wherein a rack is mounted on the direct current motor, the rack comprises two symmetrically arranged pressurizing cylinders, a piston is mounted at the free end of a connecting rod and penetrates through the pressurizing cylinders, a crank wheel is mounted at the output end of a speed reducing mechanism, a rotating shaft is mounted on the crank wheel and penetrates through a strip-shaped annular sleeve, air storage chambers are arranged at the free ends of the two pressurizing cylinders, a second one-way valve is mounted between the air storage chambers and the pressurizing cylinders, the two air storage chambers are mutually communicated, and one air storage chamber is further connected with an inflating pipe assembly. The purpose is as follows: through mutually supporting of direct current motor and double link subassembly, drive two pistons simultaneously and do alternating reciprocating motion, under the output shaft of direct current motor rotates the condition of round, drive two pistons and accomplish respectively and aerify once, under the condition of the increase single volume of aerifing, shortened the time of aerifing, improved and aerifyd efficiency.
Description
Technical Field
The invention belongs to the technical field of inflation pumps, and particularly relates to a double-cylinder inflation pump.
Background
The inflating pump is also called an inflating machine, an inflating pump and an inflating pump, the inflating pump is driven to operate by the operation of the motor, when the inflating pump is used for pumping air, the valve of the communicating device is opened by the air pressure of the atmosphere, the air enters the air cylinder, when the inflating pump is used for inflating the tire, the valve is closed by the air pressure in the air cylinder, and the air enters the tire.
The core structure of the existing inflator pump is that the motor is adopted to drive the piston of the cylinder to reciprocate through the speed reducing mechanism, the existing inflator pump is mostly a single-cylinder inflator pump, the single inflation amount is small, therefore, the inflator pump with double cylinders is also available on the market, but although the single inflation amount of the existing double-cylinder inflator pump is multiplied compared with the single-cylinder inflator pump, the inflation time and the inflation efficiency are relatively reduced, and the effects of shortening the inflation time and improving the inflation efficiency are not really achieved.
Disclosure of Invention
The purpose of the invention is: the double-cylinder inflator pump drives the two pistons to do alternating reciprocating motion simultaneously through the mutual matching of the direct current motor and the double-connecting-rod assembly, the two pistons are driven to respectively complete one-time inflation under the condition that the output shaft of the direct current motor rotates for one circle, the inflation time is shortened under the condition that the single inflation air volume is increased, and the inflation efficiency is improved.
In order to achieve the technical purpose, the technical scheme adopted by the invention is as follows:
a double-cylinder inflator pump comprises a direct current motor and a double-connecting rod assembly, wherein a rack is installed on the direct current motor, the rack comprises two symmetrically arranged pressurizing cylinders, the double-connecting rod assembly comprises a strip-shaped ring sleeve and connecting rods fixedly installed on two sides of the strip-shaped ring sleeve, pistons are installed at free ends of the connecting rods, the pistons are arranged in the pressurizing cylinders in a penetrating mode, air inlet holes are formed in the pistons, first one-way valves are installed in the air inlet holes, a speed reducing mechanism is installed on a power output shaft of the direct current motor, a crank wheel is installed at the output end of the speed reducing mechanism, a rotating shaft is installed on the crank wheel, the rotating shaft is parallel to and does not coincide with the power output shaft of the direct current motor, the rotating shaft is arranged in the strip-shaped ring sleeve in a penetrating mode, two free ends of the pressurizing cylinders are provided with air storage chambers, and a second one-way valve is installed between the air storage chambers and the pressurizing cylinders, the two air storage chambers are communicated with each other, and one air storage chamber is also connected with an inflating pipe assembly.
Further inject, the second check valve includes rubber valve, spring and outer hexagonal end cap, the spring is located between rubber valve and the outer hexagonal end cap, set up threaded through-hole on the gas receiver, outer hexagonal end cap spiro union is in threaded through-hole. The second one-way valve is formed by the rubber valve, the spring and the outer hexagonal plug, and the structure is simple and convenient to manufacture.
Further inject, reduction gears includes sun gear, a plurality of planet wheel, ring gear and support frame, sun gear fixed mounting is on direct current motor's power take off shaft, ring gear fixed mounting is between direct current motor and the frame, and a plurality of the planet wheel rotates and installs on the support frame, planet wheel and sun gear, ring gear meshing, the support frame rotates and installs on the ring gear, crank wheel fixed mounting is on the support frame. According to the structural design, the sun gear, the plurality of planet gears, the gear ring and the support frame form a planet gear speed reducing mechanism, so that the torque transmitted by the direct current motor to the double-link rod assembly is increased, the direct current motor can drive the two cylinders to work, the requirement on the torque of the direct current motor when the inflating pump works is reduced, and the cost for purchasing the direct current motor is further reduced; meanwhile, the current in the direct current motor is reduced, and the service life of the direct current motor is prolonged; meanwhile, a planetary gear speed reducing mechanism consisting of a sun gear, a plurality of planet gears, a gear ring and a support frame is adopted to amplify the torque of the direct current motor, and when the direct current motor operates, the noise of the planet gears is smaller than that of the existing parallel gear transmission, so that the noise of the inflator pump in use is reduced.
Further limited, the two pressurizing cylinders are symmetrically arranged and detachably connected with the gear ring. Due to the structural design, the two pressurizing cylinders are detachably connected with the gear ring in an independent part mode, the structure is simple, and the disassembly and the assembly are convenient.
Further, the rotating shaft is provided with a bearing, and the bearing is positioned in the strip-shaped annular sleeve. By the structural design, the bearing replaces a rotating shaft to be in contact with the strip-shaped ring sleeve, so that the friction force can be reduced, and the service life can be prolonged.
Further inject, the bar groove has been seted up on the connecting rod, all install the support in two bar inslots in the frame, the flat pad is all installed in the upper and lower terminal surface of connecting rod to the support. Due to the structural design, the pistons in the left and right reciprocating motion processes of the double-connecting-rod assembly are protected through the support and the flat pad, the damage of axial deviation of the pistons to the pressurizing cylinder body is reduced to a certain extent, and the service life of the pistons is prolonged.
Further, a high-pressure pipe is arranged between the two air storage chambers. The two air storage chambers are connected through the high-pressure pipe in the structural design, the structure is simple, and the manufacturing is convenient.
Further limiting, a pressure relief mechanism and a pressure gauge are further mounted on one of the air storage chambers. According to the structural design, the pressure in the air storage chamber is monitored through the pressure gauge, and when the pressure in the air storage chamber is too high, high-pressure air in the air storage chamber can be released through the pressure relief mechanism, so that the problem that the direct current motor is damaged due to the fact that the load applied to the power output shaft of the direct current motor in the reverse direction by the pressurization sleeve is too large is solved, and the direct current motor is protected.
Further limit, the connecting rod is fixedly provided with a reinforcing rib. Such structural design, through the structural strength of strengthening rib reinforcing connecting rod, the practicality is stronger, the air duct has been seted up in the frame, two the reservoir passes through the air duct intercommunication. Such structural design, through the mode of seting up the air duct in the frame, communicate two air reservoirs, the air duct is located the frame completely, for two air reservoirs of external pipeline intercommunication, life is longer. Further, the crank wheel is herringbone, a first mounting hole and a plurality of second mounting holes are formed in the crank wheel, the output end of the speed reducing mechanism is mounted in the first mounting hole, the distance between the plurality of second mounting holes and the first mounting hole is different in size, and the rotating shaft is fixedly mounted in one of the first mounting holes. Such structural design, in the in-service use process, the accessible is installed the mode in different second mounting holes to the pivot, adjusts the motion stroke of piston, and then adjusts the rotatory round of direct current motor, the air output of pump.
The invention adopting the technical scheme has the advantages that:
1. the direct current motor is matched with the double-connecting-rod assembly, the two pistons are driven to do alternate reciprocating motion simultaneously, the two pistons are driven to respectively complete one-time inflation under the condition that the output shaft of the direct current motor rotates for one circle, the inflation time is shortened under the condition that the single inflation air volume is increased, and the inflation efficiency is improved;
2. the loads of the inflator pump in the use process are balanced by the opposite double boosting cylinders, so that the loads of the output shaft of the direct current motor in the use process are kept balanced, and the current in the direct current motor is reduced and stable in size in the use process of the direct current motor;
3. the planetary gear speed reducing mechanism is formed by the sun gear, the plurality of planet gears, the gear ring and the support frame, so that the torque transmitted to the double-connecting-rod assembly by the direct current motor is increased, the direct current motor can drive the two cylinders to work, the requirement on the torque of the direct current motor when the inflation pump works is reduced, and the cost for purchasing the direct current motor is further reduced;
4. the piston in the left-right reciprocating motion process of the double-connecting-rod assembly is protected by the support and the flat pad, so that the damage of the axial offset of the piston to the pressurizing cylinder is reduced to a certain extent, and the service life of the piston is prolonged;
5. through set up a plurality of second through-holes different with first mounting hole distance on the crank wheel, the accessible installs the pivot in different second mounting holes, adjusts the motion stroke of piston, and then adjusts the rotatory round of direct current motor, the air output of pump.
Drawings
The invention is further illustrated by the non-limiting examples given in the accompanying drawings;
FIG. 1 is a schematic structural view of a first embodiment of a dual cylinder inflator of the present invention;
FIG. 2 is a schematic view of a schematic flow structure of a first embodiment of a dual cylinder inflator according to the present invention;
FIG. 3 is an exploded view of a second embodiment of a dual cylinder inflator in accordance with the present invention;
FIG. 4 is an enlarged schematic view of the structure at A in FIG. 3;
FIG. 5 is a schematic structural view of a third embodiment of a dual cylinder inflator according to the present invention;
FIG. 6 is a schematic cross-sectional view of a third embodiment of a dual cylinder inflator according to the present invention;
FIG. 7 is a schematic structural view of a fourth embodiment of a dual cylinder inflator according to the present invention;
the main element symbols are as follows:
a direct current motor 1, an inflating pipe assembly 10, a high pressure pipe 101, an air duct 102,
A pressurizing cylinder 2, a piston 21,
The double-connecting-rod component 3, the strip-shaped ring sleeve 31, the connecting rod 32, the reinforcing rib 320, the strip-shaped groove 321, the bracket 322, the flat pad 323, the first mounting hole 41, the second mounting hole 42,
Crank wheel 4, rotating shaft 40, bearing 401,
A rubber valve 51, a spring 52, an outer hexagonal plug 53,
Sun gear 61, planet gear 62, ring gear 63, and carrier 64.
Detailed Description
The present invention will be described in detail with reference to the drawings and specific embodiments, wherein like reference numerals are used for similar or identical parts in the drawings or the description, and implementations not shown or described in the drawings are known to those of ordinary skill in the art. In addition, directional terms, such as "upper", "lower", "top", "bottom", "left", "right", "front", "rear", and the like, used in the embodiments are only directions referring to the drawings, and are not intended to limit the scope of the present invention.
The first embodiment is as follows:
as shown in fig. 1 and 2, the double-cylinder inflator pump of the present invention comprises a dc motor 1 and a double-link rod assembly 3, wherein a frame is mounted on the dc motor 1, the frame comprises two pressurizing cylinders 2 symmetrically arranged, the double-link rod assembly 3 comprises a bar-shaped ring sleeve 31 and connecting rods 32 fixedly mounted on two sides of the bar-shaped ring sleeve 31, a piston 21 is mounted at a free end of each connecting rod 32, the piston 21 is inserted into the pressurizing cylinder 2, an air inlet is formed in the piston 21, a first one-way valve is mounted in the air inlet, a speed reducing mechanism is mounted on a power output shaft of the dc motor 1, a crank wheel 4 is mounted at an output end of the speed reducing mechanism, a rotating shaft 40 is mounted on the crank wheel 4, the rotating shaft 40 is parallel to and non-coincident with the power output shaft of the dc motor 1, the rotating shaft 40 is inserted into the bar-shaped ring sleeve 31, air storage chambers are respectively disposed at free ends of the two pressurizing cylinders 2, a second one-way valve is mounted between the air storage chambers and the pressurizing cylinder 2, the two air storage chambers are communicated with each other, and one air storage chamber is also connected with an inflating pipe assembly 10.
The second check valve comprises a rubber valve 51, a spring 52 and an outer hexagonal plug 53, the spring 52 is located between the rubber valve 51 and the outer hexagonal plug 53, a threaded through hole is formed in the air storage chamber, and the outer hexagonal plug 53 is in threaded connection with the threaded through hole. The second one-way valve is formed by the rubber valve 51, the spring 52 and the outer hexagonal plug 53, and the second one-way valve is simple in structure and convenient to manufacture.
The speed reducing mechanism comprises a sun wheel 61, a plurality of planet wheels 62, a gear ring 63 and a support frame 64, wherein the sun wheel 61 is fixedly arranged on a power output shaft of the direct current motor 1, the gear ring 63 is fixedly arranged between the direct current motor 1 and the frame, the planet wheels 62 are rotatably arranged on the support frame 64, the planet wheels 62 are meshed with the sun wheel 61 and the gear ring 63, the support frame 64 is rotatably arranged on the gear ring 63, and the crank wheel 4 is fixedly arranged on the support frame 64. A planetary gear speed reducing mechanism is formed by the sun gear 61, the plurality of planet gears 62, the gear ring 63 and the support frame 64, so that the torque transmitted by the direct current motor 1 to the double-link rod assembly 3 is increased, the direct current motor 1 can drive the two cylinders to work, the requirement on the torque of the direct current motor 1 when the inflation pump works is reduced, and the cost for purchasing the direct current motor 1 is further reduced; meanwhile, the current inside the direct current motor 1 is reduced, and the service life of the direct current motor 1 is prolonged; meanwhile, the torque of the direct current motor 1 is amplified by adopting a planetary gear speed reducing mechanism consisting of the sun gear 61, a plurality of planet gears 62, a gear ring 63 and a support frame 64, and the noise of the planet gears is smaller than that of the existing parallel gear transmission during operation, so that the noise of the inflator during use is reduced.
The two pressurizing cylinders 2 are symmetrically arranged and detachably connected with the gear ring 63. The two pressurizing cylinder bodies 2 are detachably connected with the gear ring 63 in an independent part mode, and the pressurizing cylinder body is simple in structure and convenient to disassemble and assemble.
The rotating shaft 40 is provided with a bearing 401, and the bearing 401 is positioned in the strip-shaped ring sleeve 31. The bearing 401 replaces the rotating shaft 40 to be in contact with the strip-shaped ring sleeve 31, so that the friction force can be reduced, and the service life can be prolonged.
A strip-shaped groove 321 is formed in the connecting rod 32, a support 322 is mounted in the two strip-shaped grooves 321 on the rack, and flat pads 323 are mounted on the upper end face and the lower end face of the support 322 on the connecting rod 32. The piston 21 in the left-right reciprocating process of the double-connecting-rod assembly 3 is protected by the support 322 and the flat pad 323, the damage to the pressurization cylinder 2 caused by the axial deviation of the piston 21 is reduced to a certain extent, and the service life of the piston 21 is prolonged.
A high pressure pipe 101 is installed between the two air reservoirs. The two air storage chambers are connected through the high-pressure pipe 101, the structure is simple, and the manufacturing is convenient.
One of the air storage chambers is also provided with a pressure relief mechanism 22 and a pressure gauge 23. The pressure in the air storage chamber is monitored through the pressure gauge 23, and when the pressure in the air storage chamber is too high, high-pressure air in the air storage chamber can be released through the pressure release mechanism, so that the problem that the direct current motor 1 is damaged due to the fact that the pressure sleeve 2 reversely exerts too large load on the power output shaft of the direct current motor 1 is solved, and the direct current motor 1 is protected. The pressure gauge 23 may be a common pressure gauge or a digital display pressure gauge.
In this embodiment, when in use, the inflating pipe assembly 10 is connected to a tire to be inflated, the dc motor 1 is started to drive the sun gear 61 to rotate, so that the planet gear 62 is engaged with the sun gear 61 and the gear ring 63 to drive the support frame 64 to rotate so as to drive the crank wheel 4 to rotate, further drive the rotating shaft 40 to rotate around the power output shaft of the dc motor 1, and then drive the two pistons 21 to reciprocate in the pressurizing cylinder 2 by using the matching relationship between the rotating shaft 40 and the double-link assembly 3;
then, the reciprocating motion of the piston 21 is matched with the first one-way valve and the second one-way valve, so that the two pressurizing cylinder bodies 2 alternately inflate the inflating pipe assembly 10, and further, the inflation work of the tire is completed;
example two:
as shown in fig. 3 and 4, the only different structure of this embodiment compared with the first embodiment is: the connecting rod 32 is fixedly provided with a reinforcing rib 320. Otherwise, the rest of the structure is the same as the first embodiment.
The reinforcing rib 320 reinforces the structural strength of the connecting rod 32, and thus, the practicability is high.
Example three:
as shown in fig. 5 and fig. 6, the only different structure of this embodiment compared with the first embodiment is: an air duct 102 is formed in the frame, and the two air storage chambers are communicated through the air duct 102. Otherwise, the rest of the structure is the same as the first embodiment.
Through the mode of seting up air flue 102 in the frame, communicate two air reservoirs, air flue 102 is located the frame completely, for two air reservoirs of external pipeline intercommunication, life is longer.
Example four:
as shown in fig. 7, the only different structure of this embodiment compared with the first embodiment is: the crank wheel 4 is in a herringbone shape, a first mounting hole 41 and a plurality of second mounting holes 42 are formed in the crank wheel 4, the output end of the speed reducing mechanism is mounted in the first mounting hole 41, the distance between the plurality of second mounting holes 42 and the first mounting hole 41 is different in size, and the rotating shaft 40 is fixedly mounted in one of the first mounting holes 41. Otherwise, the rest of the structure is the same as the first embodiment.
In the actual use process, the moving stroke of the piston 21 can be adjusted by installing the rotating shaft 40 in different second installation holes 42, so that the air output of the inflator pump can be adjusted by rotating the direct current motor 1 for one circle.
The above description provides a dual cylinder inflator in detail. The description of the specific embodiments is only intended to facilitate an understanding of the method of the invention and its core ideas. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.
Claims (10)
1. A double-cylinder type inflator is characterized in that: the device comprises a direct current motor (1) and a double-connecting-rod assembly (3), wherein a rack is installed on the direct current motor (1), the rack comprises two symmetrically arranged pressurization cylinder bodies (2), the double-connecting-rod assembly (3) comprises a strip-shaped ring sleeve (31) and connecting rods (32) fixedly installed on two sides of the strip-shaped ring sleeve (31), a piston (21) is installed at the free end of each connecting rod (32), the piston (21) is arranged in the pressurization cylinder body (2) in a penetrating mode, an air inlet hole is formed in the piston (21), a first one-way valve is installed in the air inlet hole, a speed reducing mechanism is installed on a power output shaft of the direct current motor (1), a crank wheel (4) is installed at the output end of the speed reducing mechanism, a rotating shaft (40) is installed on the crank wheel (4), and the rotating shaft (40) is parallel to and does not coincide with the power output shaft of the direct current motor (1), the rotating shaft (40) is arranged in the strip-shaped ring sleeve (31) in a penetrating mode, the free ends of the pressurizing cylinder bodies (2) are provided with air storage chambers, a second one-way valve is arranged between each air storage chamber and the pressurizing cylinder bodies (2), the air storage chambers are communicated with one another, and one air storage chamber is further connected with an inflating pipe assembly (10).
2. The twin-cylinder inflator according to claim 1, wherein: the second one-way valve comprises a rubber valve (51), a spring (52) and an outer hexagonal plug (53), the spring (52) is located between the rubber valve (51) and the outer hexagonal plug (53), a threaded through hole is formed in the air storage chamber, and the outer hexagonal plug (53) is in threaded connection with the threaded through hole.
3. The twin-cylinder inflator according to claim 1, wherein: the speed reducing mechanism comprises a sun wheel (61), a plurality of planet wheels (62), a gear ring (63) and a support frame (64), wherein the sun wheel (61) is fixedly installed on a power output shaft of a direct current motor (1), the gear ring (63) is fixedly installed between the direct current motor (1) and a rack, the planet wheels (62) are rotatably installed on the support frame (64), the planet wheels (62) are meshed with the sun wheel (61) and the gear ring (63), the support frame (64) is rotatably installed on the gear ring (63), and a crank wheel (4) is fixedly installed on the support frame (64).
4. The twin-cylinder inflator according to claim 1, wherein: the two pressurizing cylinder bodies (2) are symmetrically arranged and detachably connected with the gear ring (63).
5. The twin-cylinder inflator according to claim 1, wherein: the utility model discloses a flat pad of a motor vehicle, including connecting rod (32), connecting rod (32) are last to have seted up bar groove (321), all install support (322) in two bar grooves (321) in the frame, flat pad (323) are all installed to support (322) in the upper and lower terminal surface of connecting rod (32).
6. The twin-cylinder inflator according to claim 1, wherein: and a high-pressure pipe (101) is arranged between the two air storage chambers.
7. The twin-cylinder inflator according to claim 1, wherein: and a pressure relief mechanism (22) and a pressure gauge (23) are also arranged on one of the air storage chambers.
8. The twin-cylinder inflator according to claim 1, wherein: and the connecting rod (32) is fixedly provided with a reinforcing rib (320).
9. The twin-cylinder inflator according to claim 1, wherein: an air channel (102) is formed in the rack, and the two air storage chambers are communicated through the air channel (102).
10. The twin-cylinder inflator according to claim 1, wherein: the crank wheel (4) is in a herringbone shape, a first mounting hole (41) and a plurality of second mounting holes (42) are formed in the crank wheel (4), the output end of the speed reducing mechanism is mounted in the first mounting hole (41), the distance between the second mounting holes (42) and the first mounting hole (41) is different in size, and the rotating shaft (40) is fixedly mounted in one of the first mounting holes (41).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111389654.4A CN114320825A (en) | 2021-11-22 | 2021-11-22 | Double-cylinder type inflator pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111389654.4A CN114320825A (en) | 2021-11-22 | 2021-11-22 | Double-cylinder type inflator pump |
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| Publication Number | Publication Date |
|---|---|
| CN114320825A true CN114320825A (en) | 2022-04-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111389654.4A Pending CN114320825A (en) | 2021-11-22 | 2021-11-22 | Double-cylinder type inflator pump |
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