CN215566438U

CN215566438U - Built-in pump

Info

Publication number: CN215566438U
Application number: CN202121508124.2U
Authority: CN
Inventors: 杨春华
Original assignee: Dongguan Hongsheng Metal & Plastic Technoloty Co ltd
Current assignee: Dongguan Hongsheng Metal & Plastic Technoloty Co ltd
Priority date: 2021-07-02
Filing date: 2021-07-02
Publication date: 2022-01-18
Anticipated expiration: 2031-07-02

Abstract

The utility model discloses a built-in pump, which comprises a shell, a direct-current pump body, a PCBA (printed Circuit Board Assembly) board, a valve body and a power supply, wherein the shell is provided with a first air port and a second air port; the valve body is arranged at the second air port; the power supply is electrically connected with the PCBA board, and the PCBA board is electrically connected with the direct current pump body to drive the direct current pump body to operate, so that gas flows from the first gas port to the second gas port or from the second gas port to the first gas port. The built-in pump has small size, high inflation pressure and short inflation time.

Description

Built-in pump

Technical Field

The utility model relates to an inflator pump, in particular to a built-in pump.

Background

The existing alternating current/AC built-in pump is large in size, and is caused by the fact that the volume of an alternating current motor is too large, and the inflation pressure of the existing alternating current/AC built-in pump is low, so that the inflation time is long, and the inflation efficiency is low.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a built-in pump which is small in size, high in inflation pressure and short in inflation time.

In order to achieve the purpose, the built-in pump provided by the utility model comprises a shell, a direct-current pump body, a PCBA (printed Circuit Board Assembly), a valve body and a power supply, wherein the shell is provided with a first air port and a second air port, the input end of the direct-current pump body is connected with the first air port, and the output end of the direct-current pump body is connected with the second air port; the valve body is arranged at the second air port; the power supply is electrically connected with the PCBA board, and the PCBA board is electrically connected with the direct current pump body to drive the direct current pump body to operate, so that gas flows from the first gas port to the second gas port or from the second gas port to the first gas port.

Compared with the prior art, the direct current motor and the PCBA are arranged, and the circuit of the PCBA is used for converting alternating current into direct current, so that the purpose of driving the direct current motor to rotate is achieved. In addition, the volume of the built-in pump can be greatly reduced, and the built-in pump is favorable for being placed in the air bag.

Preferably, the air conditioner further comprises a switching component, wherein the switching component is movably arranged in the shell and is provided with a first air passage and a second air passage; one end of the first air passage is connected with the first air port, and the other end of the first air passage is connected with any one of the input end and the output end of the direct-current pump body; one end of the second air passage is connected with the second air port, and the other end of the second air passage is connected with the other of the input end and the output end of the direct-current pump body. By arranging the switching component, the switching component can change the positions of the first air passage and the second air passage, so that the flowing direction of the air is changed, and the built-in pump can realize the functions of inflation or deflation.

Specifically, be equipped with first holding chamber in the casing, switching part around self center pin rotationally set up in first holding intracavity, just be equipped with oblique baffle in the switching part, the upside of oblique baffle forms first air flue, the downside forms the second air flue.

Specifically, a first through hole and a second through hole are respectively arranged on two sides of the first accommodating cavity, a first air hole is formed in the side wall of the first air passage, and the first air hole is communicated with the input end of the direct-current pump body; a second air hole is formed in the side wall of the second air passage and communicated with the output end of the direct-current pump body; the first air hole may be directly opposite to any one of the first through hole and the second through hole, and the second air hole may be directly opposite to the other one of the first through hole and the second through hole.

Specifically, the switching part is provided with a first abutting part for driving the valve body to open the second air port and a second abutting part for driving the valve body to close the second air port.

Specifically, the lower side of the switching component is at least provided with a track, the track is provided with a high position part and a low position part, the high position part forms the first abutting part, and the low position part forms the second abutting part.

Preferably, a second accommodating cavity is formed in the housing, and the direct-current pump body is arranged in the second accommodating cavity.

Preferably, a third accommodating cavity is arranged in the shell, the third accommodating cavity is provided with an opening communicating with the outside, and the opening is sealed by a cover body; the power supply is arranged in the third accommodating cavity. Through with the power independently place in the third holding chamber, both can be right the power seals the protection, can be again through opening the lid conveniently takes out, improves the convenience of maintaining.

Preferably, the valve body includes a support, a sealing ring and an elastic member, the sealing ring is disposed at one end of the support, and the elastic member abuts against between the other end of the support and the inner wall of the housing.

Specifically, the valve body further comprises a screw, the screw is adjustably connected to one end of the support in a threaded mode, and the elastic piece abuts against the screw. Through utilizing the screw connection the support, the screw can adjust its connect in the position on the support to adjust the elastic force of elastic component is favorable to controlling airtight effect.

Drawings

Fig. 1 is a perspective view of the internal pump of the present invention.

FIG. 2 is a cross-sectional view of the present invention with the built-in pump deflated.

Fig. 3 is a structural view of a switching member of the built-in pump of the present invention.

Fig. 4 is a structural view of a valve body of the internal pump of the present invention.

Fig. 5 is a state diagram of the pump built-in according to the present invention when inflated.

FIG. 6 is a state diagram of the present invention with the built-in pump deflated.

Fig. 7 is a state diagram of the present invention with a pump seal built in.

Detailed Description

In order to explain technical contents, structural features, and effects achieved by the present invention in detail, the following detailed description is given with reference to the embodiments and the accompanying drawings.

As shown in fig. 1 to 2, the internal pump 100 of the present invention includes a casing 1, a dc pump body 2, a PCBA plate 3, a valve body 4, and a power source 5, wherein the casing 1 is provided with a first air port 11 and a second air port 12, the first air port 11 is located on a surface of the casing 1, and the second air port 12 is located on a bottom surface of the casing 1. The direct current pump body 2 is arranged in the shell 1; the direct current pump body 2 comprises a direct current dust collector motor and fan blades connected to the output end of the direct current dust collector motor. In the inflation state, the input end 2a of the direct-flow pump body 2 is connected with the first air port 11, and the output end 2b of the direct-flow pump body 2 is connected with the second air port 12. The valve body 4 is disposed at the second port 12. The power supply 5 is electrically connected with the PCBA board 3, and the power supply 5 is a power line and used for introducing alternating current. A control circuit and a protection circuit for converting input alternating current into direct current are arranged in the PCBA board 3; the PCBA board 3 is arranged below the direct current pump body 2. The PCBA plate 3 is electrically connected to the dc pump body 2 to drive the dc pump body 2 to operate, so that gas flows from the first gas port 11 to the second gas port 12. Specifically, the following:

referring to fig. 2 and 3, the internal pump 100 further includes a switching member 6, the switching member 6 is movably disposed in the casing 1, and the switching member 6 is provided with a first air passage 61 and a second air passage 62; one end of the first air duct 61 is connected to the first air port 11, and the other end is connected to any one of the input end and the output end of the dc pump body 2; one end of the second air passage 62 is connected to the second air port 12, and the other end is connected to the other of the input end and the output end of the dc pump body 2. By providing the switching member 6, the switching member 6 can change the positions of the first air passage 61 and the second air passage 62, thereby changing the flow direction of the gas and enabling the built-in pump 100 to realize the function of inflation or deflation.

Referring to fig. 2, specifically, a first accommodating cavity 13 is disposed in the housing 1, the first accommodating cavity 13 is cylindrical, and a central axis of the first accommodating cavity 13 is vertically disposed. The switching member 6 is cylindrical. The switching member 6 is rotatably disposed in the first accommodation chamber 13 about its central axis. An inclined partition plate 63 is arranged in the switching member 6, the upper side of the inclined partition plate 63 forms the first air passage 61, and the lower side forms the second air passage 62. The housing 1 has an inner casing 1a therein, and the first receiving cavity 13 is disposed in the inner casing 1 a. A gap 16 is formed between the inner casing 1a and the outer casing, a first through hole 17 and a second through hole 18 are respectively arranged on two sides of the first accommodating cavity 13, a first air hole 611 is formed in the side wall of the first air passage 61, and a second air hole 621 is formed in the side wall of the second air passage 62. The first air hole 611 may be opposite to any one of the first through hole 17 and the second through hole 18, and the second air hole 621 may be opposite to the other one of the first through hole 17 and the second through hole 18. When the pump is inflated, the first air hole 611 is communicated with the input end of the direct current pump body 2 through the first through hole 17; the second air hole 621 is communicated with the output end of the direct current pump body 2 through the second through hole 18; when the air is deflated, the first air hole 611 is communicated with the output end of the direct current pump body 2 through the second through hole 18; the second air hole 621 is communicated with the input end of the direct current pump body 2 through the first through hole 17. An operating knob 6a is arranged at the position of the first air port 11 at the upper end of the switching component 6, and the switching component 6 can be quickly and conveniently rotated by operating the operating knob 6 a.

As shown in fig. 3, the switching member 6 is provided with a first abutting portion 64 for urging the valve body 4 to open the second port 12 and a second abutting portion 65 for urging the valve body 4 to close the second port 12. Specifically, the lower side of the switching member 6 is provided with a track around the circumference of the central shaft, the track has an undulating structure, the track at least has a high position and a low position, the high position forms the first abutting portion 64, and the low position forms the second abutting portion 65. When the high position part is pressed against the valve body 4, the valve body 4 opens the second air port 12; when the lower portion abuts against the valve body 4, the valve body 4 seals the second port 12.

Referring to fig. 4, the valve body 4 includes a bracket 41, a sealing ring 42, an elastic member 43, and a screw 44, wherein the sealing ring 42 is disposed at one end of the bracket 41 and is in sealing contact with the edge of the second air port 12. The elastic member 43 is pressed between the other end of the bracket 41 and the inner wall of the housing 1. The elastic member 43 is a compression spring. The screw 44 is adjustably screwed to the bracket 41, and the elastic member 43 is pressed against the screw 44. By connecting the bracket 41 with the screw 44, the screw 44 can adjust the position where it is connected to the bracket 41, thereby adjusting the elastic force of the elastic member 43, which is beneficial to control the airtight effect.

Referring to fig. 2, a second accommodating cavity 14 is formed in the housing 1, the second accommodating cavity 14 is located below one side of the first accommodating cavity 13, and a central axis of the dc pump body 2 is transversely disposed in the second accommodating cavity 14. A third accommodating cavity 15 is formed in the housing 1, and the third accommodating cavity is located on one side of the first accommodating cavity 13 and above the second accommodating cavity 14. The third accommodating cavity 15 is provided with an opening communicating with the outside, and the opening is closed by a cover body 1 b; the power supply 5 is arranged in the third accommodating cavity 15. Through will power 5 independently place in third holding chamber 15, both can be right power 5 seals the protection, can be again through opening lid 1b conveniently takes out power 5, improves the convenience of maintaining.

As shown in fig. 5, when the air is inflated, the cover body 1b is opened, the power supply 5 is taken out, and the alternating current is connected; the operating knob 6a is operated to direct the operating knob 6a to the position of inflation. At this time, the switching member 6 rotates, and the first abutting portion 64 of the switching member 6 pushes the valve body 4, so that the valve body 4 opens the second air port 12. At this time, the first air hole 611 faces the first through hole 17, and the second air hole 621 faces the second through hole 18. Then, the direct flow pump body 2 is activated, and the external air flows into the first air passage 61 from the first air port 11, flows into the gap 16 from the first air passage 61 through the first air hole 611 and the first through hole 17, flows into the input end of the direct flow pump body 2 from the gap 16, flows into the second through hole 18 and the second air hole 621 from the output end of the direct flow pump body 2, enters the second air passage 62, and flows into the airbag from the second air passage 62 through the second air port 12.

As shown in fig. 6, during deflation, the operation knob 6a is operated to direct the operation knob 6a to the position for deflation, and at this time, the switching member 6 rotates, and the first abutting portion 64 of the switching member 6 pushes the valve body 4, so that the valve body 4 opens the second air port 12. At this time, the first air hole 611 faces the second through hole 18, and the second air hole 621 faces the first through hole 17. Then, the direct current pump body 2 is activated, and the air in the airbag flows into the second air passage 62 from the second air passage 12, flows into the gap 16 from the second air passage 62 through the second air hole 621 and the first through hole 17, flows into the input end of the direct current pump body 2 from the gap 16, flows into the first air passage 61 from the output end of the direct current pump body 2 through the second through hole 18 and the first air hole 611, and flows out of the outside from the first air passage 61 through the first air hole 11.

Finally, when the inflation and deflation are no longer performed, the operation knob 6a can be turned to the closed position, so that the second abutting portion 65 of the switching member 6 is aligned with the valve body 4, and the valve body 4 is reset by the elastic force of the elastic member 43, so that the sealing ring 42 seals the second air port 12.

Compared with the prior art, the direct current motor and the PCBA board 3 are arranged, alternating current is converted into direct current through the circuit of the PCBA board 3, and therefore the purpose of driving the direct current motor to rotate is achieved. In addition, the volume of the internal pump 100 can be greatly reduced, which is beneficial for being placed inside the air bag.

The circuit configuration and the principle involved in the PCBA board 3 of the present invention are well known to those skilled in the art and will not be described in detail herein.

The above disclosure is only a preferred embodiment of the present invention, and certainly should not be taken as limiting the scope of the present invention, which is therefore intended to cover all equivalent changes and modifications within the scope of the present invention.

Claims

1. An internal pump, characterized by: the direct-current pump comprises a shell, a direct-current pump body, a PCBA (printed Circuit Board Assembly) plate, a valve body and a power supply, wherein the shell is provided with a first air port and a second air port, the input end of the direct-current pump body is connected with the first air port, and the output end of the direct-current pump body is connected with the second air port; the valve body is arranged at the second air port; the power supply is electrically connected with the PCBA board, and the PCBA board is electrically connected with the direct current pump body to drive the direct current pump body to operate, so that gas flows from the first gas port to the second gas port or from the second gas port to the first gas port.

2. The built-in pump of claim 1, wherein: the switching component is movably arranged in the shell and is provided with a first air passage and a second air passage; one end of the first air passage is connected with the first air port, and the other end of the first air passage is connected with any one of the input end and the output end of the direct-current pump body; one end of the second air passage is connected with the second air port, and the other end of the second air passage is connected with the other of the input end and the output end of the direct-current pump body.

3. The internal pump as defined in claim 2, wherein: the switching part is rotatably arranged in the first accommodating cavity around a self central shaft, an inclined partition plate is arranged in the switching part, the upper side of the inclined partition plate forms the first air passage, and the lower side of the inclined partition plate forms the second air passage.

4. An internal pump as defined in claim 3, wherein: a first through hole and a second through hole are respectively formed in two sides of the first accommodating cavity, a first air hole is formed in the side wall of the first air passage, and the first air hole is communicated with the input end of the direct-current pump body; a second air hole is formed in the side wall of the second air passage and communicated with the output end of the direct-current pump body; the first air hole may be directly opposite to any one of the first through hole and the second through hole, and the second air hole may be directly opposite to the other one of the first through hole and the second through hole.

5. An internal pump as defined in claim 3, wherein: the switching part is provided with a first abutting part for driving the valve body to open the second air port and a second abutting part for driving the valve body to close the second air port.

6. An internal pump as defined in claim 5, wherein: the lower side of the switching component is provided with a track, the track at least comprises a high position part and a low position part, the high position part forms the first abutting part, and the low position part forms the second abutting part.

7. The built-in pump of claim 1, wherein: the casing is internally provided with a second accommodating cavity, and the direct-current pump body is arranged in the second accommodating cavity.

8. The built-in pump of claim 1, wherein: a third accommodating cavity is arranged in the shell, an opening communicating with the outside is formed in the third accommodating cavity, and the opening is sealed by a cover body; the power supply is arranged in the third accommodating cavity.

9. The built-in pump of claim 1, wherein: the valve body comprises a support, a sealing ring and an elastic piece, the sealing ring is arranged at one end of the support, and the elastic piece is abutted between the other end of the support and the inner wall of the shell.

10. An internal pump as defined in claim 9, wherein: the valve body further comprises a screw, the screw is adjustably connected to one end of the support in a threaded mode, and the elastic piece abuts against the screw.