CN213374187U

CN213374187U - Anti-reflux interlayer device for preventing liquid and dust from entering motor pump of nasal aspirator

Info

Publication number: CN213374187U
Application number: CN202021522298.XU
Authority: CN
Inventors: 郭智超
Original assignee: Guangzhou Berrcom Medical Devices Co ltd
Current assignee: Guangzhou Berrcom Medical Devices Co ltd
Priority date: 2020-07-28
Filing date: 2020-07-28
Publication date: 2021-06-08
Anticipated expiration: 2030-07-28

Abstract

The utility model discloses an anti-reflux interlayer device for preventing liquid and dust from entering a motor pump of a nose suction device, relating to the technical field of dust prevention and leakage prevention, and an auxiliary component comprises a suction bin; the storage component comprises a storage bin and a protective interlayer hermetically fixed with the suction bin, the storage bin is connected with the protective interlayer and is positioned in the suction bin, the end part of the storage bin is connected with an anti-reflux partition block, the suction bin is provided with an air suction pipe, and the air suction pipe enters the storage bin after passing through the anti-reflux partition block; and the vacuum generating component comprises a shell and a motor pump arranged in the shell, the protective interlayer is fixed on the shell, an air duct is arranged on the protective interlayer, an airflow inlet is arranged on the motor pump, the air duct is communicated with the airflow inlet, and a filter membrane anti-backflow component is arranged at the communication position of the air duct and the airflow inlet. The device effectively solves the problem that the service life of the motor pump is further influenced due to the fact that the motor pump is blocked or short-circuited by moisture or foreign matters.

Description

Anti-reflux interlayer device for preventing liquid and dust from entering motor pump of nasal aspirator

Technical Field

The utility model relates to a dustproof antiseep technical field, in particular to prevent that liquid and dust from getting into anti-reflux interlayer device of nasal aspirator motor pump.

Background

In realizing the utility model discloses the in-process, the inventor finds to have following problem at least among the prior art, and the existing nasal aspirator product all produces the negative pressure through inside motor pump on the existing market, makes the suction nozzle mouth of nasal aspirator and external atmosphere produce the pressure differential, inhales the interior storing filtering area of nasal aspirator with the external liquid of suction nozzle or debris from the suction nozzle mouth. Because the negative pressure airflow enters the storage filtering area from the suction nozzle opening and then enters the motor pump, when liquid or sundries (such as nasal discharge and the like) in the storage filtering area are accumulated to a certain volume, the liquid or sundries can also enter the motor pump along with the negative pressure airflow, so that the motor pump is blocked or seriously abraded, the use effect of a product is seriously influenced, and the service life of the product is also shortened. Although some products on the market have other improvements, the effect is not obvious, and foreign matters can enter the motor pump inside the nasal aspirator. Therefore, there is an urgent need to develop a nasal aspirator product which can prevent liquid or sundries from entering the horse pump and does not affect the work of the motor pump, so as to solve the problem that the motor pump affects the use of the product due to moisture or rotation blockage and reduce the service life of the product.

Disclosure of Invention

The utility model discloses aim at solving one of the above-mentioned technical problem among the prior art to a certain extent at least. Therefore, the embodiment of the utility model provides a prevent that liquid and dust from getting into anti-reflux interlayer device of nasal aspirator motor pump for prevent that liquid or debris from getting into in the nasal aspirator motor pump, solve the motor pump because moist or foreign matter leads to motor pump jam or short circuit, further influence its life's problem.

According to the anti-backflow interlayer device for preventing liquid and dust from entering the motor pump of the nose suction device, the auxiliary component comprises a suction bin; the storage component comprises a storage bin and a protective interlayer hermetically fixed with the suction bin, the storage bin is connected with the protective interlayer and is positioned in the suction bin, the end part of the storage bin is connected with an anti-reflux partition block, the suction bin is provided with an air suction pipe, and the air suction pipe penetrates through the anti-reflux partition block and then enters the storage bin; the vacuum generating component comprises a shell and a motor pump arranged in the shell, the protective interlayer is fixed on the shell, an air duct is arranged on the protective interlayer, an airflow inlet is arranged on the motor pump, the air duct is communicated with the airflow inlet, and a filter membrane anti-backflow component is arranged at the communication position of the air duct and the airflow inlet.

The filter membrane anti-backflow assembly comprises a filter membrane pressing ring, a filter membrane and a filter screen, wherein the filter membrane is connected to the filter membrane pressing ring, and the filter screen is connected to the filter membrane pressing ring and faces to one side of the air inlet.

As a further improvement of the above, the filter membrane is made of a teflon membrane, and the effective area of the filter membrane is larger than 78.5 square millimeters.

As a further improvement of the above, the filter membrane pressing ring is made of any one of rubber and waterproof paper, and the filter membrane is hot-pressed on the filter membrane pressing ring.

As a further improvement, the filter screen is made of any one of stainless steel and plastic, and a plurality of filter holes arranged in an array are arranged on the filter screen.

Preferably, the vacuum generating component further comprises a neck connecting block, the vent pipeline is communicated with the airflow inlet through the neck connecting block, a channel is arranged on the neck connecting block, the protective interlayer is fixed on one end of the channel in a sealing mode and presses the filter membrane anti-backflow component into the channel, and the motor pump is connected to the other end of the channel in a sealing mode.

Furthermore, be equipped with first step and second step in the passageway, the filter screen is pressed on the first step, the second step with be equipped with the clearance between the filter screen.

Preferably, the anti-backflow spacer block is composed of any one of silica gel and rubber, and the Shore hardness of the silica gel and the Shore hardness of the rubber are both 40-50A.

Furthermore, a lip piece is arranged on the backflow prevention partition block, the air suction pipe penetrates through the lip piece, and the thickness of the lip piece is 0.5-0.7 mm.

Preferably, the auxiliary component further comprises a suction nozzle, the suction nozzle is connected to the suction bin, and the suction nozzle is communicated with the air suction pipe.

Based on the technical scheme, the embodiment of the utility model provides a following beneficial effect has at least: in the technical scheme, the air suction pipe of the suction chamber is communicated with the outside, the negative pressure generated by the motor pump enables air flow to enter the storage chamber from the air suction pipe, then enters the suction chamber from the gap between the air suction pipe and the anti-backflow partition block, and then enters the motor pump in the vacuum generation component from the air vent pipeline of the protection partition layer, most of liquid and sundries mixed in the air flow and coming along with the air flow are larger in quality and viscosity and better in fluidity than air, so the liquid and the sundries are intercepted and gathered in the storage chamber by the anti-backflow partition block, and a small part of the liquid and the sundries easily flow into the motor pump along with the air flow, therefore, the filter membrane anti-backflow component is arranged at the communication position of the air vent pipeline and the motor pump, the part of the liquid and the sundries can be blocked on the filter membrane anti-backflow component, and the problem that the motor pump of the nose sucker product is blocked or short-circuited, further affecting the service life thereof.

Drawings

The present invention will be further described with reference to the accompanying drawings and examples;

figure 1 is a cross-sectional view of an embodiment of the invention;

fig. 2 is an exploded view of an embodiment of the invention;

FIG. 3 is an exploded view of a membrane anti-backflow assembly in an embodiment of the present invention;

fig. 4, 5 and 6 are sectional views of the anti-reflux spacer block in the embodiment of the present invention.

Reference numerals: the device comprises a suction nozzle 11, a suction bin 12, an anti-reflux partition block 21, a lip sheet 210, a storage bin 22, a protective interlayer 23, a filter membrane anti-reflux assembly 30, a filter screen 31, a filter membrane pressing ring 32, a filter membrane 33, a vacuum generating component 40, a neck connecting block 41, a shell 42 and a motor pump 43.

Detailed Description

This section will describe in detail the embodiments of the present invention, preferred embodiments of the present invention are shown in the attached drawings, which are used to supplement the description of the text part of the specification with figures, so that one can intuitively and vividly understand each technical feature and the whole technical solution of the present invention, but they cannot be understood as the limitation of the protection scope of the present invention.

In the description of the present invention, it should be understood that the orientation or positional relationship indicated with respect to the orientation description, such as up, down, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, a plurality of means are one or more, a plurality of means are two or more, and the terms greater than, less than, exceeding, etc. are understood as not including the number, and the terms greater than, less than, within, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present invention, unless there is an explicit limitation, the words such as setting, installation, connection, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in combination with the specific contents of the technical solution.

Referring to fig. 1 to 2, the anti-reverse flow partition device for preventing liquid and dust from entering a motor pump of a nasal aspirator of the present invention is composed of an auxiliary member, a storage member, and a vacuum generating member 40.

As shown in fig. 1, the auxiliary components, including the suction hopper 12. The storing part comprises a storing cabin 22 and a protective interlayer 23 which is sealed and fixed with the suction cabin 12, the storing cabin 22 is connected with the protective interlayer 23 and is positioned in the suction cabin 12, the end part of the storing cabin 22 is connected with an anti-reflux partition block 21, the suction cabin 12 is provided with an air suction pipe, and the air suction pipe enters the storing cabin 22 after passing through the anti-reflux partition block 21. Specifically, the auxiliary component further comprises a suction nozzle 11, the suction nozzle 11 is connected to a suction bin 12, and the suction nozzle 11 is communicated with an air suction pipe. The suction nozzle 11 is funnel-shaped, a hole through which air flow can pass is formed in the center of the suction nozzle, one end of the air suction pipe penetrates through the center of the suction cabin 12 which is cup-shaped in shape and is connected and communicated with the suction nozzle 11, and a cavity is formed in the storage cabin 22 and can store and collect liquid or sundries. When the storage component is normally assembled, the storage bin 22 is firstly fixed on the protection interlayer 23, then the backflow-preventing partition block 21 is sleeved on one end, facing the suction bin 12, of the storage bin 22, the suction bin 12 connected with the suction nozzle 11 is fixed behind the protection interlayer 23 in a sealing mode, the storage bin 22 is located in the suction bin 12, the air suction pipe penetrates through the backflow-preventing partition block 21 and enters the cavity of the storage bin 22, and at the moment, air flow can only enter the air suction pipe from the hole of the suction nozzle 11 and finally enters the storage bin 22.

Vacuum generation part 40, including casing 42 and place at the inside motor pump 43 of casing 42, motor pump 43 mainly plays the effect that produces the negative pressure, protection interlayer 23 is fixed on casing 42, be equipped with the air duct on the protection interlayer 23, be equipped with the air current entry on motor pump 43, air duct even ventilation inflow mouth, the intercommunication department of air duct and air current entry is equipped with filter membrane anti-reflux subassembly 30, preferably, vacuum generation part 40 still includes neck connecting block 41, the air duct passes through neck connecting block 41 intercommunication air current entry, be equipped with the passageway on the neck connecting block 41, protection interlayer 23 is sealed to be fixed on the one end of passageway and presses filter membrane anti-reflux subassembly 30 in the passageway, motor pump 43 sealing connection is at the other end of passageway. After the assembled storage component is installed and fixed on the vacuum generating component 40 through the protective interlayer 23, the air flow inlet is communicated with the air vent pipeline through the channel of the neck connecting block 41, namely is communicated with the interior of the storage component, the storage component is communicated with the outside through the suction nozzle 11, when the motor pump 43 starts to work, vacuum negative pressure is generated, air flow enters from the suction nozzle 11 and enters the storage bin 22 through the air suction pipe due to air pressure difference, most of liquid and sundries in the air flow cannot pass through the anti-backflow partition block 21 again due to large mass and viscosity due to the fact that the anti-backflow partition block 21 is arranged on the storage bin 22, the air flow passes through the anti-backflow partition block 21 and enters the suction bin 12, the liquid and sundries are blocked by the anti-backflow partition block 21 and are gathered and stored in the cavity of the storage bin 22 to form primary filtration, however, when the humidity in the air is higher, more liquid and dust impurities in the sucked air flow can be caused, and under the condition that the negative pressure generated by the motor pump 43 is overlarge and unstable, the opportunity that the liquid and the dust impurities escape into the motor pump 43 still exists in the primarily filtered air flow, so that the filter membrane backflow prevention assembly 30 arranged at the communication part of the vent pipeline and the air flow inlet plays a role in further intercepting the liquid and the dust impurities and can also allow the filtered air flow to pass through, the purpose of preventing the liquid from entering the motor pump 43 is achieved, the motor pump 43 cannot be contacted with the liquid for a long time to generate the condition of rusting or causing short circuit, the dust impurities cannot enter the motor pump 43 to block the motor pump 43 to burn off, and the problems that the air flow is insufficiently filtered and the service life of a nose sucker product is influenced are solved well.

Further, referring to fig. 3 and fig. 1, the filter membrane anti-reflux assembly 30 includes a filter membrane pressing ring 32, a filter membrane 33 and a filter screen 31, the filter membrane 33 is connected to the filter membrane pressing ring 32, and the filter screen 31 is connected to a surface of the filter membrane pressing ring 32 facing the air inlet, wherein the filter membrane 33 plays a role of filtering dust and liquid, and the filter membrane pressing ring 32 and the filter screen 31 play a role of supporting and enabling the air flow to smoothly flow through the filter membrane 33.

As the preferred embodiment, the filter membrane 33 is made of teflon membrane, the teflon membrane is selected because of its excellent performance of purifying gas and blocking impurities such as liquid and dust, and when the liquid or impurities reach the surface of the filter membrane along with the air flow, the liquid or impurities are blocked, and the air flow can pass through the pores of the teflon membrane to realize the filtering function, in the practical implementation process, the teflon membrane is required to have hydrophobicity, the pores of the filter membrane are many, and the suitable pore size of the filter membrane pores can be selected according to the practical situation, preferably, the effective area of the filter membrane 33 is larger than 78.5 square millimeters, and the effective area refers to the area through which the air flow passes. Of course, the filter membrane 33 in this embodiment may be made of other materials capable of purifying and blocking gas, liquid and dust, and is not limited to the ptfe membrane.

In the preferred embodiment, the filter membrane pressing ring 32 is made of any one of rubber and waterproof paper, and the filter membrane 33 is heat pressed on the filter membrane pressing ring 32. in this embodiment, the filter membrane pressing ring 32 is annular, the filter membrane 33 is fixed on the filter membrane pressing ring 32 and covers the hollow position, and the rubber or waterproof paper is used as the material of the filter membrane pressing ring 32, on one hand, the rubber or waterproof paper can prevent water, and can also perform a heat pressing process to heat press and fix the filter membrane 33 and prevent the filter membrane 33 from being excessively deformed, and on the other hand, when the protection interlayer 23 presses the filter membrane backflow prevention assembly 30 on the channel, the filter membrane pressing ring 32 is slightly deformed to seal the gap between the filter membrane pressing ring. Of course, the filter membrane pressing ring 32 may be made of other materials that can be hot pressed and waterproof according to the embodiment, and is not limited to the embodiment. If the filter press ring 32 is used for a nasal aspirator product, it is preferable to set the hollow diameter of the filter press ring 32 to 5 to 8 mm.

In the preferred embodiment, the screen 31 is made of any one of stainless steel and plastic, and the screen 31 has a plurality of filter holes arranged in an array. Being equipped with the filtration pore on filter screen 31 lets the air current pass through smoothly behind the filter membrane and enter into motor pump 43 inside through the filtration pore, it is concrete, as shown in fig. 1, filter screen 31 connects and fixes on one end of filter membrane clamping ring 32, but not with filter membrane 33 direct contact, there is the clearance between the two in order to make things convenient for the air current to pass through, and filter screen 31 plays the effect of supporting fixed filter membrane clamping ring 32 and filter membrane 33, so the optional material that has certain rigidity and waterproof rust-resistant among the concrete implementation process.

In this embodiment, be equipped with first step and second step in neck connecting block 41's the passageway, filter screen 31 presses on first step, first step plays the effect that support filter membrane anti-reflux subassembly 30, be equipped with the clearance between second step and the filter screen 31, the clearance of setting can be avoided because of filter screen 31 snap-on first step and shelter from most filtration pores to lead to the total area of actual filtration pore to be less than the filtration membrane hole area of filtration membrane 33, this kind of condition can lead to the air current to reduce and the unsmooth condition of circulation of air in the in-service use, it is preferred, the embodiment sets up the ladder clearance with first step and second step on using the nose suction device product to 0.5 ~ 0.1 mm.

In a preferred embodiment of the present invention, the backflow prevention partition 21 is made of any one of silicon rubber and rubber, the backflow prevention partition 21 made of silicon rubber or rubber can effectively seal the storage bin 22 due to its ability to deform plastically, further, the backflow prevention partition 21 is provided with a lip 210, the air suction pipe passes through the lip 210, a through hole is provided in the middle of the lip 210, the air suction pipe passes through the through hole and is in interference fit with the lip 210, the interference fit between the air suction pipe and the lip 210 forms a sealing effect, so that when the motor pump 43 does not operate, the liquid and dust stored in the storage bin 22 cannot flow into the motor pump 43 from the matching position of the air suction pipe and the lip 210 due to the inversion of the nose suction device product, preferably, the thickness of the lip 210 is 0.5 to 0.7mm, and the thickness of other cross sections of the backflow prevention partition 21 is preferably 1.5 to 2 mm. In order to maximize the effect of the preliminary filtration and enable the lip piece 210 to be opened to allow airflow to pass through during operation, further, both the shore hardness of silica gel and the shore hardness of rubber are 40-50A, in this embodiment, three different embodiments of the lip piece 210 are further provided, as shown in fig. 4, the upper part and the lower part of the through hole of the lip piece 210 are both provided with oblique angles with a certain angle; as shown in fig. 5, the upper portion of the through-hole of the lip 210 is provided with a bevel at a certain angle, but the lower portion thereof may not be provided; as shown in fig. 6, the upper portion of the through-hole of the lip 210 may not be provided with a bevel, but the lower portion thereof is provided with a bevel. On the nasal aspirator product, the maximum vacuum degree of the motor pump 43 can generally stably reach 60-65 kpa, in order to realize pressure difference and draw air flow into the nasal aspirator product, matching with the shore hardness of selected silica gel and rubber, the lip sheets 210 of the anti-backflow spacer block 21 can be opened by three lip sheet 210 structures in the embodiment, so that air in the air flow is allowed to pass through the gap between the air suction pipe and the lip sheets 210, and meanwhile, impurities such as liquid, dust and the like are isolated in the storage bin 22, and the liquid and dust impurities are initially isolated.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.

Claims

1. The utility model provides a prevent that liquid and dust from getting into anti-flow back interlayer device of nasal aspirator motor pump which characterized in that: comprises that

An auxiliary component comprising a suction hopper (12);

the storage component comprises a storage bin (22) and a protection interlayer (23) hermetically fixed with the suction bin (12), the storage bin (22) is connected with the protection interlayer (23) and is positioned in the suction bin (12), the end part of the storage bin (22) is connected with an anti-backflow spacer block (21), the suction bin (12) is provided with an air suction pipe, and the air suction pipe penetrates through the anti-backflow spacer block (21) and then enters the storage bin (22); and

the vacuum generating component (40) comprises a shell (42) and a motor pump (43) arranged inside the shell (42), the protective interlayer (23) is fixed on the shell (42), an air duct is arranged on the protective interlayer (23), an air flow inlet is arranged on the motor pump (43), the air duct is communicated with the air flow inlet, and a filter membrane anti-backflow component (30) is arranged at the communication position of the air duct and the air flow inlet.

2. The anti-reflux barrier device for preventing liquids and dust from entering a motor pump of a nasal aspirator of claim 1, wherein: anti-reflux subassembly (30) are prevented to filter membrane includes filter membrane clamping ring (32), filter membrane (33) and filter screen (31), filter membrane (33) are connected on filter membrane clamping ring (32), filter screen (31) are connected filter membrane clamping ring (32) orientation on the one side of air inlet.

3. The anti-reflux barrier device for preventing liquids and dust from entering a motor pump of a nasal aspirator according to claim 2, wherein: the filter membrane (33) is made of a polytetrafluoroethylene membrane, and the effective area of the filter membrane (33) is larger than 78.5 square millimeters.

4. The anti-reflux barrier device for preventing liquids and dust from entering a motor pump of a nasal aspirator according to claim 2, wherein: the filter membrane clamping ring (32) is composed of any one of rubber and waterproof paper, and the filter membrane (33) is hot-pressed on the filter membrane clamping ring (32).

5. The anti-reflux barrier device for preventing liquids and dust from entering a motor pump of a nasal aspirator according to claim 2, wherein: the filter screen (31) is composed of any one of stainless steel and plastic, and a plurality of filter holes which are arranged in an array are arranged on the filter screen (31).

6. The anti-reflux barrier device for preventing liquids and dust from entering a motor pump of a nasal aspirator according to claim 2, wherein: the vacuum generating component (40) further comprises a neck connecting block (41), the air vent pipeline is communicated with the air inlet through the neck connecting block (41), a channel is arranged on the neck connecting block (41), the protective interlayer (23) is fixed on one end of the channel in a sealing mode and presses the filter membrane anti-backflow component (30) in the channel, and the motor pump (43) is connected to the other end of the channel in a sealing mode.

7. The anti-reflux barrier device for preventing liquids and dust from entering a motor pump of a nasal aspirator of claim 6, wherein: be equipped with first step and second step in the passageway, filter screen (31) are pressed on the first step, the second step with be equipped with the clearance between filter screen (31).

8. The anti-reflux barrier device for preventing liquid and dust from entering a motor pump of a nasal aspirator according to any one of claims 1 to 7, wherein: the anti-reflux spacer block (21) is composed of any one of silica gel and rubber, and the Shore hardness of the silica gel and the Shore hardness of the rubber are both 40-50A.

9. The anti-reflux barrier device for preventing liquids and dust from entering a motor pump of a nasal aspirator of claim 8, wherein: the backflow prevention partition block (21) is provided with a lip sheet (210), the air suction pipe penetrates through the lip sheet (210), and the thickness of the lip sheet (210) is 0.5-0.7 mm.

10. The anti-reflux barrier device for preventing liquids and dust from entering a motor pump of a nasal aspirator of claim 1, wherein: the auxiliary component further comprises a suction nozzle (11), the suction nozzle (11) is connected to the suction bin (12), and the suction nozzle (11) is communicated with the air suction pipe.