CN218235418U

CN218235418U - Low-noise automatic internal pressure relief air pump

Info

Publication number: CN218235418U
Application number: CN202222398295.5U
Authority: CN
Inventors: 孙抗; 申照瑞; 郭鹏飞
Original assignee: Heyuan Jichuangxing Technology Co ltd
Current assignee: Heyuan Jichuangxing Technology Co ltd
Priority date: 2022-09-09
Filing date: 2022-09-09
Publication date: 2023-01-06
Anticipated expiration: 2032-09-09

Abstract

The utility model relates to an automatic internal pressure release air pump of low noise, including motor and the air pump main part of being connected with motor one end, the air pump main part includes pressure relief device, pressure relief device includes elastic valve plug, spring, guide arm and spiral pressure regulating cap, the bottom of spiral pressure regulating cap be equipped with guide arm matched with hole, the spring cup joints on the guide arm, the one end embedding of guide arm is in the elastic valve plug, the other end falls into in the hole. The utility model optimizes the structure of the pressure relief device to enable the pressure relief airflow and noise to be absorbed internally, thereby realizing the purpose of noise reduction, and the redundant gas after pressure relief can be recycled, thus being beneficial to saving energy consumption and achieving the effects of energy conservation and emission reduction; in addition, through pressure relief device's rational design need not to add the amortization cotton and can realize falling the effect of making an uproar, has avoided the long-term work of amortization cotton and has blockked up the risk of pressure release mouth to be favorable to saving the cost, further satisfy user's demand.

Description

Low-noise automatic internal pressure relief air pump

Technical Field

The utility model relates to an air pump technical field especially relates to an automatic internal pressure release air pump of low noise.

Background

An air pump, namely an air pump, is a device for removing air from a closed space or adding air from the closed space, and is widely applied to the fields of aerospace industry, automobile manufacturing industry, shipbuilding industry, pressure detection industry, medical instrument industry and the like.

At present, the air pump that has now in the market, its pressure release runner design is simpler, and the air current is direct outwards discharged, and the pressure release air current is comparatively hurried, leads to pressure release air current noise big, needs to add the amortization cotton at the pressure release gas outlet, causes extra cost-push, increases power loss simultaneously, and the amortization cotton has the risk of blockking up the pressure release mouth after long-time work, leads to can not accurately reach the pressure release effect.

SUMMERY OF THE UTILITY MODEL

In view of the above, it is necessary to provide a low-noise automatic internal pressure relief air pump in order to solve the problems in the prior art.

The utility model provides an automatic interior pressure release air pump of low noise, includes motor and the air pump main part of being connected with motor one end, the air pump main part includes pressure relief device, pressure relief device includes elastic valve plug, spring, guide arm and spiral pressure regulating cap, the bottom of spiral pressure regulating cap be equipped with guide arm matched with hole, the spring cup joints on the guide arm, the one end embedding of guide arm is in the elastic valve plug, the other end falls into in the hole.

In one embodiment, the air pump main body further comprises a valve body assembly, a swing assembly and a fixing assembly, the fixing assembly comprises an upper cover, a first fixing seat, a second fixing seat and a base, the upper cover, the first fixing seat, the second fixing seat and the base are sequentially buckled and are fixedly connected through a buckle, and the bottom end of the base is fixedly connected with the motor through a screw.

In one embodiment, the base is provided with an air inlet nozzle, the upper cover is provided with an air outlet nozzle and a pressure relief nozzle, the pressure relief nozzle is provided with an air inlet through hole and an air outlet through hole, and the pressure relief device is installed in the pressure relief nozzle.

In one embodiment, the pressure relief nozzle is provided with an air inlet through hole, and an air relief through hole communicated with the inside is arranged beside the air inlet through hole.

In one embodiment, a reserved installation position is arranged between the first fixed seat and the second fixed seat.

In one embodiment, the first fixing seat is provided with a plurality of air inlet holes, air outlet holes and mounting holes, and the air inlet holes are wound around the edges of the mounting holes.

In one embodiment, the valve body assembly comprises an air inlet valve plate, an air outlet valve plate and a leather cup piston, the leather cup piston is installed on the reserved position, one end of the air inlet valve plate penetrates through the installation hole to be connected with the air outlet valve plate, and the air outlet valve plate is installed on the first fixing seat.

In one embodiment, the air outlet valve plate is provided with a plurality of baffle plates, and the baffle plates correspond to the air outlet holes one to one.

In one embodiment, the swing assembly comprises an eccentric wheel, a rotating shaft and a swing arm, a through hole matched with a pin of the cup piston is formed in the swing arm, a first shaft hole matched with an output shaft of the motor is formed in the bottom of the eccentric wheel, a second shaft hole matched with the rotating shaft is formed in the top of the eccentric wheel, the rotating shaft and the swing arm are in interference fit through the second shaft hole, and the eccentric wheel is installed on the output shaft of the motor through the first shaft hole.

According to the low-noise automatic internal pressure relief air pump, the structures of the upper cover and the pressure relief device installed in the upper cover are optimized, so that pressure relief airflow and noise can be absorbed in the pump body, the purpose of noise reduction is achieved, redundant gas after pressure relief can be recycled, energy consumption is saved, and the effects of energy conservation and emission reduction are achieved; in addition, through pressure relief device's rational design need not to add the amortization cotton and can realize falling the effect of making an uproar, has avoided the long-term work of amortization cotton and has blockked up the risk of pressure release mouth to be favorable to saving the cost, further satisfy user's demand.

Drawings

FIG. 1 is a schematic view of the structure of an upper cover of a low-noise automatic internal pressure-releasing air pump of the present invention;

FIG. 2 is a schematic view of a pressure relief device of the low-noise automatic internal pressure relief air pump of the present invention;

FIG. 3 is a schematic view of an exploded structure of a low-noise automatic internal pressure relief air pump according to the present invention;

FIG. 4 is a schematic view of the overall structure of a low-noise automatic internal pressure relief air pump according to the present invention;

FIG. 5 is a schematic cross-sectional view of the low-noise automatic internal pressure relief air pump according to the present invention;

fig. 6 is the utility model relates to a schematic diagram of an abnormal operating mode profile of a low-noise automatic internal pressure relief air pump.

The air pump comprises a motor 100, a motor 200, an air pump main body 210, a valve body assembly 211, an air inlet valve plate 212, an air outlet valve plate 2121, a baffle plate 213, a leather cup piston 220, a swing assembly 221, an eccentric wheel 222, a rotating shaft 223, a swing arm 2231, a through hole 230, a fixing assembly 231, an upper cover 2311, an air outlet nozzle 2312, a pressure relief nozzle 2313, an air inlet through hole 2314, an air outlet through hole 232, a first fixing seat 2321, an air inlet hole 2322, an air outlet hole 2323, a mounting hole 233, a second fixing seat 234, a base 2341, an air inlet nozzle 235, a buckle 236, a screw 240, a pressure relief device 241, an elastic valve plug 242, a spring 243, a guide rod 244 and a spiral pressure regulating cap.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention more comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, as those skilled in the art will be able to make similar modifications without departing from the spirit and scope of the present invention.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. In contrast, when an element is referred to as being "directly on" another element, there are no intervening elements present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for descriptive purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

As shown in fig. 1 to 6, an air pump with low noise and automatic internal pressure relief comprises a motor 100 and an air pump main body 200 connected with one end of the motor 100, wherein the air pump main body 200 comprises a valve body assembly 210, a swing assembly 220, a fixing assembly 230 and a pressure relief device 240, the fixing assembly 230 comprises an upper cover 231, a first fixing seat 232, a second fixing seat 233 and a base 234, the upper cover 231, the first fixing seat 232, the second fixing seat 233 and the base 234 are sequentially buckled and are fixedly connected through a buckle 235, and the bottom end of the base 234 is fixedly connected with the motor 100 through a screw 236.

Further, the base 234 is provided with an air inlet nozzle 2341, the upper cover 231 is provided with an air outlet nozzle 2311 and a pressure relief nozzle 2312, the pressure relief nozzle 2312 is provided with an air inlet through hole 2313 and an air outlet through hole 2314, a pressure relief device 240 is installed in the pressure relief nozzle 2312, the pressure relief device 240 comprises an elastic valve plug 241, a spring 242, a guide rod 243 and a spiral pressure regulating cap 244, wherein the spiral pressure regulating cap 244 can be screwed through threaded connection, so that the elastic force of the spring 242 is regulated to adapt to pressures of different sizes; specifically, the spiral pressure regulating cap 244 is movably mounted at the end of the pressure relief nozzle 2312 and adopts a fully closed design, a hole matched with the guide rod 243 is formed in the bottom of the spiral pressure regulating cap 244, the spring 242 is sleeved on the guide rod 243, one end of the guide rod 243 falls into the hole, the other end of the guide rod 243 is embedded into the elastic valve plug 241, so that the elastic valve plug 241 is elastically extruded on the pressure relief nozzle 2312 and abuts against the air relief through hole 2314 to shield the air relief through hole 2314; in addition, an air inlet through hole 2313 communicated with the inside is formed beside the air outlet through hole 2314, and after pressure relief, redundant air flows out of the air outlet through hole 2314, is absorbed by the air inlet through hole 2313 again, and then flows back into the pump body for recycling, so that pressure relief air flow and noise can be absorbed inside, the purpose of noise reduction is achieved, the redundant air after pressure relief can be recycled, energy consumption is saved, and the effects of energy conservation and emission reduction are achieved.

Furthermore, a reserved installation position is arranged between the first fixing seat 232 and the second fixing seat 233, a plurality of air inlet holes 2321, air outlet holes 2322 and installation holes 2323 are arranged on the first fixing seat 232, and the air inlet holes 2321 are wound around the edge of the installation holes 2323.

Furthermore, the valve body assembly 210 includes an intake valve plate 211, an exhaust valve plate 212 and a leather cup piston 213, the leather cup piston 213 is installed in the reserved position, one end of the intake valve plate 211 penetrates through the installation hole 2323 to be connected with the exhaust valve plate 212, the exhaust valve plate 212 is installed on the first fixing seat 232, in addition, a plurality of blocking pieces 2121 are arranged on the exhaust valve plate 212, and the blocking pieces 2121 correspond to the exhaust holes 2322 one to one.

Still further, the swing assembly 220 includes an eccentric wheel 221, a rotating shaft 222 and a swing arm 223, a through hole 2231 matched with the pin of the cup piston 213 is arranged on the swing arm 223, a first shaft hole matched with the output shaft of the motor 100 is arranged at the bottom of the eccentric wheel 221, a second shaft hole matched with the rotating shaft 222 is arranged at the top of the eccentric wheel 221, the rotating shaft 222 and the swing arm 223 are in interference fit through the second shaft hole, and the eccentric wheel 221 is installed on the output shaft of the motor 100 through the first shaft hole.

In the working process, the output shaft of the motor 100 drives the eccentric wheel 221 to rotate through the rotation of the motor 100, and the eccentric wheel 221 drives the swing arm 223 to swing so as to push the cup piston 213 to move up and down; when the leather cup piston 213 stretches downwards to generate a pressure difference between the vacuum cavity and atmospheric pressure, the air inlet valve sheet 211 is opened, at this time, the air flows into the air inlet valve sheet 211 through the air inlet 2321 of the first fixing seat 232 and the air guide groove of the upper cover 231, and then reaches the inside of the leather cup piston 213 bag, when the leather cup piston 213 pushes upwards to compress, the air inlet valve sheet 211 is closed, the air outlet valve sheet 212 is opened, and at this time, the air flows through the air outlet valve sheet 212 and is output by the air outlet nozzle 2311; in addition, when the output end volume or the air bag inner space of the air outlet nozzle 2311 are full and reach a certain pressure, the air pressure is pushed to the elastic valve plug 241, under the action of force, the elastic valve plug 241 moves upwards, and then the guide rod 243 is driven and the spring 242 moves upwards, at the moment, the air flow enters the pressure release cavity from the air release through hole 2314, the pressure release cavity passes through the air inlet through hole 2313 and the air guide groove of the upper cover 231 are communicated, the air flow flows into the leather cup piston 213 bag through the air guide groove, and then the air outlet 2322 outputs, so that the pressure release air flow and the noise can be absorbed internally, the noise reduction purpose is realized, and the air pressure stability is ensured.

According to the low-noise automatic internal pressure relief air pump, the air inlet through hole 2313 is formed beside the air relief through hole 2314, and the structure of the pressure relief device 240 is optimized, so that pressure relief airflow and noise can be absorbed internally, the purpose of noise reduction is achieved, and redundant air after pressure relief can be recycled, so that energy consumption is saved, and the effects of energy conservation and emission reduction are achieved; in addition, through pressure relief device 240's rational design, need not to add the amortization cotton and can realize falling the effect of making an uproar, avoided the long-term work of amortization cotton and blockked up the risk of pressure release mouth to be favorable to saving the cost, further satisfy user's demand.

All possible combinations of the technical features of the above embodiments may not be described for the sake of brevity, but should be considered as within the scope of the present disclosure as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only represent several embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. The utility model provides an automatic interior pressure release air pump of low noise, includes the motor and the air pump main part of being connected with motor one end, its characterized in that, the air pump main part includes pressure relief device, pressure relief device includes elastic valve plug, spring, guide arm and spiral pressure regulating cap, the bottom of spiral pressure regulating cap be equipped with guide arm matched with hole, the spring cup joints on the guide arm, the one end embedding of guide arm is in the elastic valve plug, the other end falls into in the hole.

2. The low-noise automatic internal pressure relief air pump according to claim 1, wherein the air pump body further comprises a valve body assembly, a swing assembly and a fixing assembly, the fixing assembly comprises an upper cover, a first fixing seat, a second fixing seat and a base, the upper cover, the first fixing seat, the second fixing seat and the base are sequentially buckled and are fixedly connected through a buckle, and the bottom end of the base is fixedly connected with the motor through a screw.

3. The low-noise automatic internal pressure relief air pump according to claim 2, wherein said base is provided with an air inlet nozzle, said upper cover is provided with an air outlet nozzle and a pressure relief nozzle, said pressure relief nozzle is provided with an air inlet through hole and an air outlet through hole, and said pressure relief device is installed in said pressure relief nozzle.

4. The low-noise automatic internal-pressure-relief air pump according to claim 3, wherein said pressure-relief nozzle is provided with an air inlet through hole, and an air outlet through hole communicating with the inside is provided beside said air inlet through hole.

5. The low-noise automatic internal pressure relief air pump according to claim 2, wherein a reserved mounting position is provided between the first fixing seat and the second fixing seat.

6. The low-noise automatic internal pressure relief air pump according to claim 5, wherein said first fixing seat is provided with a plurality of air inlet holes, air outlet holes and mounting holes, and said air inlet holes are wound around the edge of said mounting holes.

7. The low-noise automatic internal pressure relief air pump according to claim 6, wherein the valve body assembly comprises an air inlet valve plate, an air outlet valve plate and a leather cup piston, the leather cup piston is installed at the reserved position, one end of the air inlet valve plate penetrates through the installation hole to be connected with the air outlet valve plate, and the air outlet valve plate is installed on the first fixing seat.

8. The low-noise automatic internal pressure relief air pump according to claim 7, wherein said air outlet valve plate is provided with a plurality of blocking pieces, and said blocking pieces correspond to said air outlet holes one to one.

9. The low-noise automatic internal pressure relief air pump according to claim 7, wherein the swing assembly comprises an eccentric wheel, a rotating shaft and a swing arm, the swing arm is provided with a through hole matched with the pin of the cup piston, the bottom of the eccentric wheel is provided with a first shaft hole matched with the output shaft of the motor, the top of the eccentric wheel is provided with a second shaft hole matched with the rotating shaft, the rotating shaft and the swing arm are in interference fit through the second shaft hole, and the eccentric wheel is installed on the output shaft of the motor through the first shaft hole.