CN211370693U - Double-end inflating pump - Google Patents

Double-end inflating pump Download PDF

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Publication number
CN211370693U
CN211370693U CN201921961148.6U CN201921961148U CN211370693U CN 211370693 U CN211370693 U CN 211370693U CN 201921961148 U CN201921961148 U CN 201921961148U CN 211370693 U CN211370693 U CN 211370693U
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China
Prior art keywords
air bag
exhaust
air
seat
air inlet
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CN201921961148.6U
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Chinese (zh)
Inventor
刘靖云
刘昊
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Guangdong Bruce Intelligent Technology Co ltd
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Guangdong Bruce Intelligent Technology Co ltd
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Abstract

The utility model relates to the technical field of inflating pumps, in particular to a double-head inflating pump which comprises a double-shaft driving device and two inflating assemblies, wherein each of the two inflating assemblies comprises an air inlet seat, an air bag assembly arranged on the air inlet seat and an air exhaust seat communicated with the air bag assembly; the air bag assembly comprises a supporting seat, an air bag block arranged on the supporting seat, a hollow telescopic part arranged on the air bag block and extending downwards and an air bag connecting piece used for driving the hollow telescopic part to switch between a compression state and a relaxation state; one side of the eccentric block is provided with a connecting shaft, and one end of the connecting shaft is connected with one end of the air bag connecting piece; two output shafts of the double-shaft driving device are respectively connected with the eccentric blocks of the two inflating assemblies. The utility model discloses simple structure is compact, can realize the synchronous work of two inflating pumps through biax drive arrangement, reduces the manufacturing cost of product from this, improves the work efficiency of product, and convenience of customers uses.

Description

Double-end inflating pump
Technical Field
The utility model belongs to the technical field of inflation pump technique and specifically relates to indicate a double-end inflation pump.
Background
An air pump is a device for moving liquid, gas or special fluid medium, i.e. a machine working on fluid. It transfers the mechanical energy of the prime mover or other external energy to the liquid, causing the liquid energy to increase. The pump is mainly used for conveying liquid such as water, oil, acid-base liquid, emulsion, suspension emulsion and liquid metal, and can also be used for conveying liquid, gas mixture and liquid containing suspended solid.
However, the existing breast pumps are all provided with one pumping pump, and one driving device is adopted for one pumping pump, however, in actual use, one breast pump cannot meet the use requirements of customers, so that customers need to purchase a plurality of pumping pumps when purchasing a plurality of breast pumps, which causes the manufacturing and consumption costs to be increased; moreover, when two breast pumps are in use, the customer needs to operate two inflation pumps at the same time, which is complicated and inconvenient to operate. This drawback is quite evident and an effective solution is needed.
Disclosure of Invention
An object of the utility model is to provide a double-end inflating pump to prior art's not enough, its simple structure is compact, can realize the simultaneous working of two inflating pumps through biax drive arrangement, reduces the manufacturing cost of product from this, improves the work efficiency of product, and convenience of customers uses.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides a double-end inflating pump, which comprises a double-shaft driving device and two inflating components, wherein each of the two inflating components comprises an air inlet seat, an air bag component arranged on the air inlet seat and an air exhaust seat communicated with the air bag component, and the air bag component is positioned between the air exhaust seat and the air inlet seat; the air bag component comprises a supporting seat connected with the air inlet seat and the air outlet seat respectively, an air bag block arranged on the supporting seat, a hollow expansion part arranged on the air bag block and extending downwards, and an air bag connecting piece used for driving the hollow expansion part to switch between a compression state and a relaxation state, wherein one end of the air bag connecting piece is connected with the air bag block and is provided with an air inlet hole communicated with the hollow expansion part, the hollow expansion part is provided with an elastic valve block used for covering the air inlet hole, and the air outlet seat is provided with an air outlet hole corresponding to the position of the hollow expansion part of the air bag block and a movable valve piece used for covering the air outlet hole; a connecting shaft is arranged on one side of the eccentric block, which is far away from the rotating axis of the eccentric block, one end of the connecting shaft, which is far away from the eccentric block, is connected with one end of the air bag connecting piece, which is far away from the air bag block, and the central axis of the connecting shaft is crossed with the rotating axis of the eccentric block; two output shafts of the double-shaft driving device are respectively connected with the eccentric blocks of the two inflating assemblies.
The double-shaft driving device is a double-shaft driving motor.
The exhaust seat is provided with an exhaust cavity, the exhaust hole is positioned at the bottom of the exhaust cavity, one end of the exhaust hole is communicated with the inner cavity of the hollow telescopic part, and the other end of the exhaust hole is communicated with the exhaust cavity; the movable valve piece comprises a sliding rod and a valve, and the sliding rod is perpendicular to the valve; the bottom of the exhaust cavity is provided with a sliding groove in sliding fit with a sliding rod, the sliding groove is communicated with the inner cavity of the hollow telescopic part, the sliding rod is connected in the sliding groove in a sliding manner, and the valve covers the air outlet end of the exhaust hole; and the top of the exhaust seat is provided with an exhaust pipe communicated with the exhaust cavity.
Further, the exhaust hole is in a plurality of numbers, and a plurality of exhaust holes are arranged around the central axis circumference array of the sliding rod.
Furthermore, the position in exhaust hole is located the cavity pars contractilis, the protruding sealing strip that is equipped with in one side that the gasbag piece contradicts with the exhaust seat, the sealing strip is established around the open end of cavity pars contractilis.
Wherein, the bottom of cavity pars contractilis is provided with the arc opening, the arc opening inboard encloses to establish into the elastic valve piece.
The air bag connecting piece comprises a rotating frame and a pulling frame which is arranged on the rotating frame and connected with the air bag block, an air guide groove communicated with the air inlet cavity is formed in the pulling frame, and the air inlet hole is formed in one end, far away from the rotating frame, of the pulling frame; the middle part of the rotating frame is connected with the connecting shaft.
Furthermore, the gasbag piece is provided with three cavity pars contractilis that are triangular distribution, the rotating turret is the triangle-shaped, every angle end of rotating turret all is provided with one and pulls the frame, and every pulls the frame and all is connected with a cavity pars contractilis.
Wherein, the air inlet seat is provided with an air inlet pipe communicated with the air inlet cavity.
The utility model has the advantages that:
the utility model provides a double-end inflating pump, the eccentric block in two inflating assemblies is connected with two output shafts of a double-shaft driving device respectively, when the double-shaft driving device drives two output shafts to work, the double-shaft driving device drives two eccentric blocks to rotate, and the rotating eccentric block drives a connecting shaft to rotate eccentrically; under the condition that the connecting shaft inclines and eccentrically rotates, the eccentric rotation of the connecting shaft can drive the air bag connecting piece to rotate and also can swing up and down, the air bag connecting piece which swings up and down can drive the hollow telescopic part of the air bag block to be continuously switched between a compression state and a relaxation state, and the compression and the relaxation of the hollow telescopic part can realize the function of inflating; when the hollow telescopic part is in relaxation, the movable valve piece of the exhaust seat covers and seals the exhaust hole, and under the action of the pressure in the air inlet cavity, the air in the air inlet cavity rushes open the elastic valve sheet through the air inlet hole and enters the hollow telescopic part; when the hollow telescopic part is compressed, the air inside the hollow telescopic part is pushed out towards the exhaust hole, at the moment, the elastic valve plate closes the air inlet hole, and the air inside the hollow telescopic part rushes the movable valve piece through the exhaust hole and is conveyed to the external breast pump through the exhaust seat. Therefore, the two pumping assemblies are respectively connected with two external breast pumps, and under the driving action of the double-shaft driving device, the hollow telescopic parts in the two pumping assemblies are continuously switched between a compression state and a relaxation state, so that the exhaust seats of the two pumping assemblies continuously supply air to the two external breast pumps respectively. The utility model has the advantages of simple structure compactness, the operation is reliable and stable, and the work energy consumption is low, and can synchronous operation and easy operation to the user of being convenient for uses.
Drawings
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the exploded structure of the present invention;
FIG. 3 is a cross-sectional view of the inflation assembly of the present invention;
FIG. 4 is a schematic view of an airbag module according to the present invention;
FIG. 5 is a schematic view of an alternative perspective of the airbag module of the present invention;
fig. 6 is a schematic structural view of the exhaust seat of the present invention.
Description of the reference numerals
1. A biaxial drive device; 2. an inflation assembly; 21. an air inlet seat; 22. an airbag module; 2221. a sealing strip; 2222. an arc-shaped opening; 23. an exhaust seat; 211. an air inlet cavity; 212. an eccentric block; 213. a connecting shaft; 221. a supporting seat; 222. an air bag block; 223. an air bag connecting member; 224. a hollow telescopic part; 225. an air inlet; 226. an elastic valve plate; 231. an exhaust chamber; 232. a sliding groove; 233. an exhaust hole; 234. an exhaust pipe; 235. a movable valve member; 2281. a valve; 2282. a slide bar; 2231. a rotating frame; 2232. pulling the frame; 2211. an air inlet pipe; 2241. and a gas guide groove.
Detailed Description
In order to facilitate understanding of those skilled in the art, the present invention will be further described with reference to the following examples and drawings, which are not intended to limit the present invention. The present invention will be described in detail with reference to the accompanying drawings.
As shown in fig. 1 to 6, the utility model provides a double-head inflation pump, which comprises a double-shaft driving device 1 and two inflation assemblies 2, wherein each of the two inflation assemblies 2 comprises an air inlet seat 21, an air bag assembly 22 arranged on the air inlet seat 21, and an air exhaust seat 23 communicated with the air bag assembly 22, and the air bag assembly 22 is positioned between the air exhaust seat 23 and the air inlet seat 21; the air inlet seat 21 is internally provided with an air inlet cavity 211 communicated with the outside and an eccentric block 212 rotatably arranged in the air inlet cavity 211, the air bag assembly 22 comprises a support seat 221 respectively connected with the air inlet seat 21 and the air outlet seat 23, an air bag block 222 arranged on the support seat 221, a hollow expansion part 224 arranged on the air bag block 222 and extending downwards and an air bag connecting piece 223 used for driving the hollow expansion part 224 to be converted between a compression state and a relaxation state, one end of the air bag connecting piece 223 is connected with the air bag block 222 and is provided with an air inlet hole 225 communicated with the hollow expansion part 224, the hollow expansion part 224 is provided with an elastic valve sheet 226 used for covering the air inlet hole 225, and the air outlet seat 23 is provided with an air outlet hole 233 corresponding to the position of the hollow expansion part 224 of the air bag block 222 and a movable valve member 235 used for covering the air; a connecting shaft 213 is arranged on one side of the eccentric block 212 far away from the rotation axis of the eccentric block, one end of the connecting shaft 213 far away from the eccentric block 212 is connected with one end of the air bag connecting piece 223 far away from the air bag block 222, and the central axis of the connecting shaft 213 is crossed with the rotation axis of the eccentric block 212 (namely, the connecting shaft 213 is obliquely arranged on the eccentric block 212); two output shafts of the double-shaft driving device 1 are respectively connected with the eccentric blocks 212 of the two inflating assemblies 2.
In practical application, the eccentric blocks 212 in the two pumping assemblies 2 are respectively connected with the two output shafts of the dual-shaft driving device 1, when the dual-shaft driving device 1 drives the two output shafts to work, the dual-shaft driving device 1 drives the two eccentric blocks 212 to rotate, and the rotating eccentric blocks 212 drive the connecting shaft 213 to rotate eccentrically; under the condition that the connecting shaft 213 tilts and eccentrically rotates, the eccentric rotation of the connecting shaft 213 drives the air bag connecting piece 223 to rotate and also swing up and down, the air bag connecting piece 223 swinging up and down drives the hollow telescopic part 224 of the air bag block 222 to be continuously switched between a compression state and a relaxation state, and the compression and the relaxation of the hollow telescopic part 224 realize the inflating effect; when the hollow expansion part 224 is expanded, the movable valve element 235 of the exhaust seat 23 covers and seals the exhaust hole 233, and under the action of the pressure in the air inlet cavity 211, the air in the air inlet cavity 211 rushes the elastic valve sheet 226 through the air inlet hole 225 and enters the hollow expansion part 224; when the hollow expansion part 224 is compressed, the hollow expansion part 224 pushes the gas inside towards the air outlet 233, at this time, the elastic valve sheet 226 closes the air inlet 225, and the gas inside the hollow expansion part 224 blows the movable valve 235 through the air outlet 233 and is then delivered to the external breast pump through the air outlet 23. Thus, the two pumping assemblies 2 are respectively connected with two external breast pumps, and under the driving action of the double-shaft driving device 1, the respective hollow telescopic parts 224 in the two pumping assemblies 2 are continuously switched between the compression state and the relaxation state, so that the exhaust seats 23 of the two pumping assemblies 2 continuously supply air to the two external breast pumps respectively. The utility model has the advantages of simple structure compactness, the operation is reliable and stable, and the work energy consumption is low, and can synchronous operation and easy operation to the user of being convenient for uses.
Preferably, the dual-shaft driving device 1 is a dual-shaft driving motor, two output shafts of the dual-shaft driving motor are located at two ends of the motor body and are coaxially arranged, and the two output shafts of the dual-shaft driving motor are respectively connected with the two eccentric blocks 212 in the two inflating assemblies 2.
In the present technical solution, the exhaust seat 23 is provided with an exhaust cavity 231, the exhaust hole 233 is located at the bottom of the exhaust cavity 231, one end of the exhaust hole 233 is communicated with the inner cavity of the hollow telescopic part 224, and the other end of the exhaust hole 233 is communicated with the exhaust cavity 231; the movable valve member 235 comprises a sliding rod 2282 and a valve 2281, wherein the sliding rod 2282 is vertically arranged with the valve 2281; the bottom of the exhaust cavity 231 is provided with a sliding groove 232 in sliding fit with a sliding rod 2282, the sliding groove 232 is communicated with the inner cavity of the hollow telescopic part 224, the sliding rod 2282 is connected in the sliding groove 232 in a sliding way, and the valve 2281 covers the air outlet end of the exhaust hole 233; the top of the exhaust seat 23 is provided with an exhaust pipe 234 communicated with the exhaust cavity 231. Specifically, the exhaust duct 234 communicates with the intake end of the external breast pump.
In practical applications, when the hollow telescopic part 224 is compressed, the air in the inner cavity of the hollow telescopic part 224 blows out the valve 2281 through the exhaust hole 233, the valve 2281 slides away from the exhaust hole 233 under the guidance of the sliding rod 2282 to open the exhaust hole 233, and then the air enters the exhaust cavity 231 from the exhaust hole 233 and is delivered to the air inlet end of the breast pump through the exhaust pipe 234; when the hollow telescopic part 224 is expanded, a negative pressure is formed in the sliding groove 232, and under the action of the negative pressure, the sliding rod 2282 of the movable valve element 235 is reset to move, so that the valve 2281 is driven to cover the exhaust hole 233 to be closed. The structure has simple and compact design and stable and reliable operation.
Preferably, the number of the exhaust holes 233 is plural, and the plural exhaust holes 233 are arranged in a circumferential array around the central axis of the slide rod 2282. The number of the exhaust holes 233 may be set according to an actual exhaust amount requirement, and the plurality of exhaust holes 233 are designed so that the gas can be stably and uniformly discharged.
In this technical solution, the exhaust hole 233 is located in the hollow telescopic part 224, a sealing strip 2221 is convexly disposed on one side of the airbag block 222 abutting against the exhaust seat 23, and the sealing strip 2221 is disposed around an open end of the hollow telescopic part 224. After the air discharging seat 23 and the supporting seat 221 are assembled, the sealing strip 2221 of the air bag module 222 abuts against the bottom of the air discharging seat 23 to seal the periphery of the opening end of the hollow expansion portion 224, so as to prevent air from leaking out from between the air discharging seat 23 and the supporting seat 221, and ensure that the air in the inner cavity of the hollow expansion portion 224 can be discharged from the air discharging hole 233 to the air discharging cavity 231 of the air discharging seat 23.
In this technical solution, the bottom of the hollow telescopic part 224 is provided with an arc opening 2222, and the inner side of the arc opening 2222 is enclosed into the elastic valve sheet 226. Specifically, resilient valve sheet 226 is integrally constructed with air bladder block 222. When the hollow telescopic part 224 is relaxed, the elastic valve plate 226 is tilted upwards, and the air inlet hole 225 can be opened; when the hollow telescopic part 224 is compressed, negative pressure is formed in the inner cavity of the hollow telescopic part 224, and the elastic valve sheet 226 is pressed on the air inlet hole 225 to close the air inlet hole 225. The structure has simple and compact design, low manufacturing cost and stable work.
In this technical solution, the airbag connecting part 223 includes a rotating frame 2231 and a pulling frame 2232 disposed on the rotating frame 2231 and connected to the airbag block 222, an air guide groove 2241 communicated with the air inlet cavity 211 is disposed inside the pulling frame 2232, and the air inlet 225 is disposed at one end of the pulling frame 2232 away from the rotating frame 2231; the middle part of the rotating frame 2231 is connected with the connecting shaft 213. In practical application, the output shaft of the dual-shaft driving motor drives the eccentric block 212 to rotate, the rotating eccentric block 212 drives the pulling frame 2232 to rotate and swing up and down, and the pulling frame 2232 swinging up and down pulls the hollow telescopic part 224 of the air bag block 222 to relax or compress; when the hollow telescopic part 224 is in the relaxation state, the gas in the gas inlet cavity 211 flows to the gas inlet hole 225 through the gas guide groove 2241, and then the gas rushes the elastic valve sheet 226 to enter the inner cavity of the hollow telescopic part 224; when the hollow telescopic part 224 is compressed, the elastic valve sheet 226 closes the air inlet hole 225 to stop the air in the air guide groove 2241 from entering the inner cavity of the hollow telescopic part 224 from the air inlet hole 225, and at the same time, the hollow telescopic part 224 pushes the air in the inner cavity away from the valve 2281 of the movable valve element 235 and enters the air discharge cavity 231 of the air discharge seat 23 from the air discharge hole 233.
Preferably, the airbag block 222 is provided with three hollow telescopic parts 224 which are distributed in a triangular shape, the rotating rack 2231 is in a triangular shape, each corner end of the rotating rack 2231 is provided with a pulling rack 2232, and each pulling rack 2232 is connected with one hollow telescopic part 224. In practical application, the three pulling frames 2232 are driven by the rotating frame 2231 to respectively swing up and down while rotating, and the three pulling frames 2232 respectively swing up and down in sequence and asynchronously, so as to further realize diastole or compression for the three hollow telescopic parts 224 in a staggered manner, thereby enabling the inflating assembly 2 to continuously output gas; the design and the working principle of the structure are similar to those of an automobile engine, so that the utility model can keep stable gas output power; the utility model has the advantages of simple and compact structural design, the operation is reliable and stable, and gas output is stable.
In the present technical solution, the air inlet seat 21 is provided with an air inlet tube 2211 communicated with the air inlet cavity 211. The air inlet pipe 2211 can be communicated with an external clean air inlet source, so that the air inlet cavity 211 in the air inlet seat 21 is prevented from being polluted.
The above description is only for the preferred embodiment of the present invention, and the present invention is not limited to the above description, and although the present invention is disclosed in the preferred embodiment, it is not limited to the above description, and any person skilled in the art can make some changes or modifications to equivalent embodiments without departing from the scope of the present invention, but all the technical solutions of the present invention are within the scope of the present invention.

Claims (9)

1. The utility model provides a double-end inflation pump which characterized in that: the air bag inflating device comprises a double-shaft driving device (1) and two inflating assemblies (2), wherein each of the two inflating assemblies (2) comprises an air inlet seat (21), an air bag assembly (22) arranged on the air inlet seat (21) and an air exhaust seat (23) communicated with the air bag assembly (22), and the air bag assembly (22) is positioned between the air exhaust seat (23) and the air inlet seat (21); the air inlet seat is characterized in that an air inlet cavity (211) communicated with the outside and an eccentric block (212) rotatably arranged in the air inlet cavity (211) are arranged in the air inlet seat (21), the air bag assembly (22) comprises a supporting seat (221) respectively connected with the air inlet seat (21) and the air outlet seat (23), an air bag block (222) arranged on the supporting seat (221), a hollow expansion part (224) arranged on the air bag block (222) and extending downwards and an air bag connecting piece (223) used for driving the hollow expansion part (224) to be switched between a compression state and a relaxation state, one end of the air bag connecting piece (223) is connected with the air bag block (222) and is provided with an air inlet hole (225) communicated with the hollow expansion part (224), the hollow expansion part (224) is provided with an elastic valve sheet (226) used for covering the air inlet hole (225), and the air outlet seat (23) is provided with an air outlet hole (233) corresponding to the hollow expansion part (224) of the air bag block (222) and is used for covering The movable valve element (235); one side, far away from the rotation axis, of the eccentric block (212) is provided with a connecting shaft (213), one end, far away from the eccentric block (212), of the connecting shaft (213) is connected with one end, far away from the airbag block (222), of the airbag connecting piece (223), and the central axis of the connecting shaft (213) is arranged in a crossed mode with the rotation axis of the eccentric block (212); two output shafts of the double-shaft driving device (1) are respectively connected with the eccentric blocks (212) of the two inflating assemblies (2).
2. The double-ended inflation pump according to claim 1, characterized in that: the double-shaft driving device (1) is a double-shaft driving motor.
3. The double-ended inflation pump according to claim 1, characterized in that: the exhaust seat (23) is provided with an exhaust cavity (231), the exhaust hole (233) is positioned at the bottom of the exhaust cavity (231), one end of the exhaust hole (233) is communicated with the inner cavity of the hollow telescopic part (224), and the other end of the exhaust hole (233) is communicated with the exhaust cavity (231); the movable valve element (235) comprises a sliding rod (2282) and a valve (2281), and the sliding rod (2282) is perpendicular to the valve (2281); the bottom of the exhaust cavity (231) is provided with a sliding groove (232) in sliding fit with a sliding rod (2282), the sliding groove (232) is communicated with the inner cavity of the hollow telescopic part (224), the sliding rod (2282) is connected in the sliding groove (232) in a sliding mode, and the valve (2281) covers the air outlet end of the exhaust hole (233); the top of the exhaust seat (23) is provided with an exhaust pipe (234) communicated with the exhaust cavity (231).
4. The double-ended inflation pump according to claim 3, characterized in that: the number of the exhaust holes (233) is plural, and the plural exhaust holes (233) are arranged in a circumferential array around the central axis of the slide lever (2282).
5. The double-ended inflation pump according to claim 3, characterized in that: the exhaust hole (233) is positioned in the hollow telescopic part (224), a sealing strip (2221) is convexly arranged on one side of the air bag block (222) abutting against the exhaust seat (23), and the sealing strip (2221) is arranged around the opening end of the hollow telescopic part (224).
6. The double-ended inflation pump according to claim 1, characterized in that: the bottom of cavity pars contractilis (224) is provided with arc opening (2222), arc opening (2222) inboard is enclosed and is established into elastic valve piece (226).
7. The double-ended inflation pump according to claim 1, characterized in that: the air bag connecting piece (223) comprises a rotating frame (2231) and a pulling frame (2232) which is arranged on the rotating frame (2231) and connected with the air bag block (222), an air guide groove (2241) communicated with the air inlet cavity (211) is arranged in the pulling frame (2232), and the air inlet hole (225) is arranged at one end, far away from the rotating frame (2231), of the pulling frame (2232); the middle part of the rotating frame (2231) is connected with the connecting shaft (213).
8. The double-ended inflation pump according to claim 7, wherein: the air bag block (222) is provided with three hollow telescopic parts (224) which are distributed in a triangular mode, the rotating frame (2231) is in a triangular mode, each corner end of the rotating frame (2231) is provided with a pulling frame (2232), and each pulling frame (2232) is connected with one hollow telescopic part (224).
9. The double-ended inflation pump according to claim 1, characterized in that: the air inlet seat (21) is provided with an air inlet pipe (2211) communicated with the air inlet cavity (211).
CN201921961148.6U 2019-11-13 2019-11-13 Double-end inflating pump Active CN211370693U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201921961148.6U CN211370693U (en) 2019-11-13 2019-11-13 Double-end inflating pump

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201921961148.6U CN211370693U (en) 2019-11-13 2019-11-13 Double-end inflating pump

Publications (1)

Publication Number Publication Date
CN211370693U true CN211370693U (en) 2020-08-28

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Application Number Title Priority Date Filing Date
CN201921961148.6U Active CN211370693U (en) 2019-11-13 2019-11-13 Double-end inflating pump

Country Status (1)

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CN (1) CN211370693U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113669238A (en) * 2021-08-26 2021-11-19 厦门达真电机有限公司 Miniature electric air pump

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113669238A (en) * 2021-08-26 2021-11-19 厦门达真电机有限公司 Miniature electric air pump
CN113669238B (en) * 2021-08-26 2022-12-06 厦门达真电机有限公司 Miniature electric air pump

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