CN208564925U - A kind of low noise high life direct current air pump - Google Patents
A kind of low noise high life direct current air pump Download PDFInfo
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- CN208564925U CN208564925U CN201820915822.6U CN201820915822U CN208564925U CN 208564925 U CN208564925 U CN 208564925U CN 201820915822 U CN201820915822 U CN 201820915822U CN 208564925 U CN208564925 U CN 208564925U
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- eccentric wheel
- air
- direct current
- low noise
- air pump
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Abstract
The utility model discloses a kind of low noise high life direct current air pumps, including motor and the pump housing, machine shaft is equipped with eccentric wheel, the pump housing is equipped with air entry and exhaust outlet, the air storing cavity for being formed with the inlet chamber being connected to air entry in the pump housing and being connected to exhaust outlet, beat set is installed in the inlet chamber of the pump housing, and beat set is connect by yawing axis with eccentric wheel, the eccentric wheel is equipped with the axis hole for yawing axis insertion, is equipped with the shoe cream room communicated with the axis hole in the ontology of the eccentric wheel.The utility model adds the shoe cream room for storing lubricating oil inside eccentric wheel, can ensure that lubricating oil when yawing axis and eccentric wheel rub supplies for a long time, to extend the service life of air pump；The utility model is also equipped with the muffler buffer unit for preventing air-flow from uttering long and high-pitched sounds at the air entry position of air pump, air pump operating noise is effectively reduced.
Description
Technical field
The utility model relates to air pump technical field, specially a kind of low noise high life direct current air pump.
Background technique
Air pump is usually used in the air bag inflation of physical therapy, massage fitness equipment for generating gas source.Its structure referring to
A kind of physiotherapy couch air pump disclosed in CN204627945U mainly includes motor and the pump housing, and wherein motor passes through eccentric wheel and the pump housing
Deflection axis connection, to drive transfer tube body running.Since yawing axis is metalwork, and eccentric wheel is plastic part, thus usually
Lubricating oil can be filled in axis hole on eccentric wheel for accommodating yawing axis, to reinforce the wearability of eccentric wheel, but it is existing
The limited volume of the axis hole of eccentric wheel, the space of axis hole filling lubricating oil remains little after yawing axis insertion, and yawing axis
It will lead to axis hole with eccentric wheel friction for a long time to be gradually increased, so that lubricating oil be made to add along the gap of beat shaft and shaft hole inner wall
Speed leakage or consumption, eventually lead to the problems such as air pump efficiency is reduced or even leaked air, seriously constrain the use of such air pump
Service life.In addition, with advances in technology, the noise of motor is effectively reduced, and the principal element for influencing air pump noise is then
The air-flow at air pump vacuum noz(zle) position is uttered long and high-pitched sounds, and the noise problem of such air pump is also urgently to be resolved.
Summary of the invention
The purpose of this utility model is to provide a kind of low noise high life direct current air pumps, and use is added inside eccentric wheel
In the shoe cream room of storage lubricating oil, it can ensure that lubricating oil when yawing axis and eccentric wheel rub supplies for a long time, to extend gas
The service life of pump.Further, the utility model is also equipped at the air entry position of air pump for preventing what air-flow from uttering long and high-pitched sounds to disappear
Sound buffer unit, air pump operating noise is effectively reduced.
To solve the above problems, the utility model the following technical schemes are provided:
A kind of low noise high life direct current air pump, including motor and the pump housing, machine shaft are equipped with eccentric wheel, set on the pump housing
There are air entry and exhaust outlet, the air storing cavity that the inlet chamber being connected to air entry is formed in the pump housing and is connected to exhaust outlet, pump
Beat set is installed in the inlet chamber of body, beat is put on equipped with several extruding rubber mats, and each extruding rubber mat is equipped with compression chamber, into
Partition is equipped between air cavity and air storing cavity, position corresponding with each compression chamber is respectively equipped with membrane and check valve on partition
Hole, beat set are connect by yawing axis with eccentric wheel, and the eccentric wheel is equipped with the axis hole for yawing axis insertion, the bias
The shoe cream room communicated with the axis hole is equipped in the ontology of wheel.
Wherein, the vertical eccentric setting of the axis hole is in the end face of eccentric wheel, and the shoe cream room is relative to the axis hole in cross
To setting.Further, the shoe cream room is two, and two shoe cream rooms are symmetrical set relative to the axis hole.The axis
The bottom in hole is equipped with the steel ball cooperated with the yawing axis.
Preferably, the shoe cream room is inwardly penetrated through from the side wall of the eccentric wheel to the axis hole, the eccentric wheel it is outer
Side is equipped with seal groove, and sealing strip is embedded in the seal groove, and the sealing strip is equipped with the seal plug cooperated with the shoe cream room
Head.
Another program, the air entry position of the pump housing are additionally provided with for delaying the noise reduction for flowing through the airflow diversion of air entry
Flushing device.Wherein, the muffler buffer unit includes the cushion chamber being connected to air entry, and the cavity wall of the cushion chamber is equipped with several
The through-hole being connected to pump body.Further, the muffler buffer unit further includes plug division, the plug division by boss with
Air entry is mating.
Compared with prior art, the utility model has the beneficial effects that
A kind of the utility model low noise high life direct current air pump claimed, adds inside eccentric wheel and is used for
The shoe cream room of lubricating oil is stored, the lubricating oil stored in the shoe cream room can for longer periods supplement the lubrication oil consumption in axis hole,
Ensure that lubricating oil when yawing axis and eccentric wheel rub supplies for a long time, to extend the service life of air pump.Further effect
Fruit, this direct current air pump is also equipped with the muffler buffer unit for preventing air-flow from uttering long and high-pitched sounds at the air entry position of air pump, when air pump work
When making, air-flow enters back into the inlet chamber of the pump housing after muffler buffer unit shunts, and can effectively reduce air pump operating noise.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model.
Fig. 2 is the structural schematic diagram of the utility model eccentric wheel.
Fig. 3 is the side structure schematic view of the utility model eccentric wheel.
Fig. 4 is the overlooking structure diagram of the utility model eccentric wheel.
Fig. 5 is the structural schematic diagram of the utility model sealing ring.
Fig. 6 is the overlooking structure diagram of the use of the new type muffler buffer unit.
Fig. 7 is the side structure schematic view of the use of the new type muffler buffer unit
In figure, 1. motors；2. the pump housing；2a. air entry；2b. exhaust outlet；3. eccentric wheel；3a. axis hole；3b. shoe cream room；3c.
Seal groove；30. sealing strip；31. seal plug；4. muffler buffer unit；41. through-hole；42. boss；5. membrane；5a. into
Air cavity；5b. compression chamber；The unidirectional valve opening of 5c.；5d. air storing cavity；6. squeezing rubber mat；7. beat set；8. yawing axis；9. steel ball.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
All other embodiment obtained, fall within the protection scope of the utility model.
It please refers to shown in Fig. 1-7, the utility model provides a kind of low noise high life direct current air pump, including motor 1 and pump
Body 2,1 shaft of motor are equipped with eccentric wheel 3, and the pump housing 2 is equipped with air entry 2a and exhaust outlet 2b, are formed in the pump housing 2 and air-breathing
Beat set is installed in the inlet chamber 5a of mouth 2a connection and the air storing cavity 5d being connected to exhaust outlet 2b, the inlet chamber 5a of the pump housing 2
7, beat set 7 be equipped with several extruding rubber mats 6, each extruding rubber mat 6 be equipped with compression chamber 5b, inlet chamber 5a and air storing cavity 5d it
Between be equipped with partition, position corresponding with each compression chamber 5b is respectively equipped with membrane 5 and unidirectional valve opening 5c, beat set on partition
7 are connect by yawing axis 8 with eccentric wheel 3, and the eccentric wheel 3 is equipped with the axis hole 3a for the yawing axis 8 insertion, the eccentric wheel
The shoe cream room 3b communicated with the axis hole 3a is equipped in 3 ontology.
The shaft and eccentric wheel 3 of motor 1 are keyed, and make circular-rotation with band movable eccentric wheel 3, since beat set 7 is by inclined
Shaft 8 is connect with eccentric wheel 3, therefore beat set 7 makees the movement of circumference beat with the rotation of eccentric wheel 3, and then is driven on beat set 7
Several extruding rubber mats 6 compression chamber 5b sequentially circulation action, and by the compressed air in compression chamber 5b by membrane 5 and
The one-way valve mechanism that unidirectional valve opening 5c is constituted is sent into air storing cavity 5d, to make to generate compressed air in air storing cavity 5d and from exhaust outlet
2b is excluded.
Yawing axis 8 before assembly, first lubricating oil is injected into arriving in shoe cream room 3b, is then assembled to axis hole again by eccentric wheel 3
In 3a, for the frictional force for reducing yawing axis 8, usually the bottom of the axis hole 3a is equipped with the steel ball cooperated with the yawing axis 8 again
9.The lubricating oil stored in the shoe cream room 3b of this direct current air pump can for longer periods supplement the lubrication oil consumption in axis hole 3a, when long
Between ensure that lubricating oil when yawing axis 8 and eccentric wheel 3 rub supplies, to substantially extend the service life of air pump.
Wherein, the vertical eccentric setting of axis hole 3a is in the end face of eccentric wheel 3, since 8 bias of yawing axis is inserted in bias
The end of wheel 3, for the motional inertia for keeping beat set 7, axis hole 3a is vertically arranged in constant slope, and the shoe cream room 3b is opposite
The inner space of eccentric wheel 3 can be made full use of in laterally setting, the construction in the axis hole 3a, increases eccentric wheel 3 without additional
Volume.3D printing molding can be used in eccentric wheel 3, and shoe cream room 3b is the cavity for taking shape in 3 body interior of eccentric wheel, the oil storage
Chamber 3b is connected to axis hole 3a, can also be taken shape in by axis hole 3a oiling, certain shoe cream room 3b for other shapes or set-up mode
In 3 ontology of eccentric wheel.
In present embodiment ,-Fig. 4, the shoe cream room 3b are two referring to fig. 2, and the two shoe cream room 3b are relative to described
Axis hole 3a is symmetrical set, and oil reserve is bigger, and two symmetrically arranged shoe cream room 3b are more uniform to 8 fuel feeding of yawing axis；Institute
It states shoe cream room 3b inwardly to penetrate through from the side wall of the eccentric wheel 3 to the axis hole 3a, due to shoe cream room 3b outer openings, need
The aperture position is sealed and is just able to achieve oil storage function, therefore the outside of eccentric wheel 3 described in this programme is equipped with seal groove 3c, it should
Sealing strip 30 is embedded in seal groove 3c, shown in Figure 5, the sealing strip 30 is close equipped with cooperating with the shoe cream room 3b
Block head 31, this structure are suitable for 3 injection molding of eccentric wheel, and cost is relatively low.
On the basis of aforementioned schemes, the position air entry 2a of the pump housing 2 is additionally provided with the air-flow for that will flow through air entry 2a
The muffler buffer unit 4 of shunting, when air pump work, air-flow enters back into the inlet chamber of the pump housing 2 after the shunting of muffler buffer unit 4
5a can effectively reduce air pump operating noise.Referring to shown in Fig. 6-7, the muffler buffer unit 4 includes being connected to air entry 2a
Cushion chamber, the cavity wall of the cushion chamber are equipped with several with the through-hole 41 being connected to inside the pump housing 2.Further, the noise reduction buffering
Device 4 further includes plug division, and the plug division is mating by boss 42 and air entry 2a, connected structure, convenient for assembly.
While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art,
It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired
Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.
Claims (8)
1. a kind of low noise high life direct current air pump, including motor (1) and the pump housing (2), motor (1) shaft is equipped with eccentric wheel
(3), the pump housing (2) is equipped with air entry (2a) and exhaust outlet (2b), is formed with the air inlet being connected to air entry (2a) in the pump housing (2)
Chamber (5a) and the air storing cavity (5d) being connected to exhaust outlet (2b), the inlet chamber (5a) of the pump housing (2) is interior to be installed with beat set (7),
Beat set (7) is equipped with several extruding rubber mats (6), and each extruding rubber mat (6) is equipped with compression chamber (5b), inlet chamber (5a) and storage
Partition is equipped between air cavity (5d), position corresponding with each compression chamber (5b) is respectively equipped with membrane (5) and list on partition
To valve opening (5c), beat set (7) is connect by yawing axis (8) with eccentric wheel (3), it is characterised in that: the eccentric wheel (3) is equipped with
For the axis hole (3a) of the yawing axis (8) insertion, the storage communicated with the axis hole (3a) is equipped in the ontology of the eccentric wheel (3)
Oil pocket (3b).
2. a kind of low noise high life direct current air pump according to claim 1, it is characterised in that: the axis hole (3a) is vertical
Eccentric setting is in the end face of eccentric wheel (3), and the shoe cream room (3b) is relative to the axis hole (3a) in laterally setting.
3. a kind of low noise high life direct current air pump according to claim 2, it is characterised in that: the shoe cream room (3b) is
Two, two shoe cream rooms (3b) are symmetrical set relative to the axis hole (3a).
4. a kind of low noise high life direct current air pump according to claim 1, it is characterised in that: the bottom of the axis hole (3a)
Portion is equipped with the steel ball (9) cooperated with the yawing axis (8).
5. a kind of low noise high life direct current air pump according to claim 1 to 4, it is characterised in that: the shoe cream room
(3b) is inwardly penetrated through from the side wall of the eccentric wheel (3) to the axis hole (3a), and the outside of the eccentric wheel (3) is equipped with seal groove
(3c), the seal groove (3c) is interior to be embedded with sealing strip (30), and the sealing strip (30) is equipped with and the shoe cream room (3b) cooperates
Seal plug (31).
6. a kind of low noise high life direct current air pump according to claim 1, it is characterised in that: the suction of the pump housing (2)
The position port (2a) is additionally provided with the muffler buffer unit (4) of the airflow diversion for that will flow through air entry (2a).
7. a kind of low noise high life direct current air pump according to claim 6, it is characterised in that: the muffler buffer unit
It (4) include the cushion chamber being connected to air entry (2a), the cavity wall of the cushion chamber is led to equipped with several with what is be connected to inside the pump housing (2)
Hole (41).
8. a kind of low noise high life direct current air pump according to claim 6, it is characterised in that: the muffler buffer unit
It (4) further include plug division, the plug division is mating by boss (42) and air entry (2a).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820915822.6U CN208564925U (en) | 2018-06-13 | 2018-06-13 | A kind of low noise high life direct current air pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820915822.6U CN208564925U (en) | 2018-06-13 | 2018-06-13 | A kind of low noise high life direct current air pump |
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| Publication Number | Publication Date |
|---|---|
| CN208564925U true CN208564925U (en) | 2019-03-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820915822.6U Active CN208564925U (en) | 2018-06-13 | 2018-06-13 | A kind of low noise high life direct current air pump |
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| Country | Link |
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| CN (1) | CN208564925U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114850025A (en) * | 2022-04-26 | 2022-08-05 | 唐山金泰机械科技有限公司 | Vibration feeding mechanism |
-
2018
- 2018-06-13 CN CN201820915822.6U patent/CN208564925U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114850025A (en) * | 2022-04-26 | 2022-08-05 | 唐山金泰机械科技有限公司 | Vibration feeding mechanism |
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