Negative pressure device

Abstract

The utility model discloses a negative pressure device which comprises a shell, a negative pressure cavity and an air exhaust assembly are arranged on the shell, an air exhaust channel used for communicating the negative pressure cavity with an air exhaust opening of the air exhaust assembly is arranged on the shell and located between the negative pressure cavity and the air exhaust assembly, and a filtering assembly is arranged in the air exhaust channel. The filtering assembly is arranged in the air exhaust channel to conduct filtering treatment, pollution or blocking caused by the fact that substances in the negative pressure cavity enter the air exhaust opening of the air exhaust assembly or the inner cavity of the shell through the air exhaust channel is effectively avoided, and the air exhaust device has the advantages of being safe, sanitary and convenient to use.

Description

Technical Field

[0001] The utility model relates to the technical field of medical beauty instruments, in particular to a negative pressure device.

Background Art

[0002] At present, for a type of negative pressure cupping devices produced in China, their principles are all to use an air extraction device to extract the air in a glass jar or a plastic jar, creating a negative pressure outside the skin so as to achieve the medical purpose. Some products integrate the air extraction device with the cupping jar, while some produce the air extraction device and the cupping jar separately and then connect and operate them during use. The negative pressure cupping device replaces the traditional fire cupping and has the advantages of safety, reliability, high efficiency and convenience. However, the currently produced negative pressure cupping devices have the following problems:

[0003] 1. The air extraction device is directly connected to the glass jar or the plastic jar, which leads to situations such as the substances in the glass jar or the plastic jar blocking and polluting the channel through the channel during use, and the sanitary effect is poor.

[0004] 2. The air extraction port (channel port) of the air extraction device faces the mouth of the glass jar or the plastic jar, which leads to the situation that the air extraction port is easily blocked by contacting the user's skin, affecting the air extraction effect and the use effect is poor.

[0005] 3. The negative pressure cupping device only has the function of negative pressure treatment, has the problems of single function and low practicability, and cannot well meet the market demand.

[0006] Therefore, the present utility model is studied and proposed in view of the above problems.

Content of the Utility Model

[0007] The purpose of the utility model is to overcome the deficiencies of the prior art, and provide a negative pressure device. By providing a filtering component in the air extraction channel for filtering treatment, it effectively avoids the substances in the negative pressure cavity from entering the air extraction port of the air extraction component or entering the inner cavity of the housing through the air extraction channel, resulting in pollution or blockage, and has the characteristics of safety, hygiene and convenient use.

[0008] The utility model is realized by the following technical solutions:

[0009] A negative pressure device includes a housing 1, a negative pressure cavity 2 and an air extraction component 5 are provided on the housing 1, and an air extraction channel 3 for connecting the negative pressure cavity 2 and the air extraction port of the air extraction component 5 is provided on the housing 1 and between the negative pressure cavity 2 and the air extraction component 5, and a filtering component 4 is provided in the air extraction channel 3.

[0010] As described above, a negative pressure device, a plugging head 31 is connected to a port of the air extraction channel 3 close to the negative pressure chamber 2, and an air extraction through hole 311 for communicating the air extraction channel 3 with the negative pressure chamber 2 is provided on the side wall of the plugging head 31; or the port of the air extraction channel 3 close to the negative pressure chamber 2 is plugged, and an air extraction through hole 311 for communicating the air extraction channel 3 with the negative pressure chamber 2 is provided on the side wall of the air extraction channel 3.

[0011] As described above, a negative pressure device, the plugging head 31 is detachably connected to the air extraction channel 3; the filtering component 4 is a filter cotton filled in the air extraction channel 3.

[0012] As described above, a negative pressure device, a contact convex part 11 is formed by downward protrusion at the bottom of the housing 1, and the negative pressure chamber 2 is located on the contact convex part 11.

[0013] As described above, a negative pressure device, a handle 12 is formed by upward protrusion at the top of the housing 1, and the handle 12 includes an extended connection part 121 protruding upward and a grasping operation part 122 connected to the upper end of the extended connection part 121 and located above the middle of the housing 1.

[0014] As described above, a negative pressure device, a plurality of electrode patches 111 are provided at the bottom of the housing 1 at circumferential intervals.

[0015] As described above, a negative pressure device, a storage battery 7 is provided in the housing 1, and the storage battery 7 is electrically connected to the air extraction component 5.

[0016] As described above, a negative pressure device, further includes a base 6, and a positioning groove 61 for positioning the bottom of the housing 1 is provided on the base 6.

[0017] As described above, a negative pressure device, a rechargeable storage battery 7 is provided in the housing 1, and the storage battery 7 is electrically connected to the air extraction component 5; a housing charging terminal 71 electrically connected to the storage battery 7 is provided at the bottom of the housing 1, a base charging terminal 611 electrically connected to the housing charging terminal 71 when the bottom of the housing 1 is positioned in the positioning groove 61 is provided on the base 6, and an external charging port 612 electrically connected to the base charging terminal 611 is further provided on the base 6.

[0018] As described above, a negative pressure device, a contact convex part 11 is formed by downward protrusion at the bottom of the housing 1, and the negative pressure chamber 2 is located on the contact convex part 11; a positioning sliding groove 62 for guiding and positioning cooperation with the contact convex part 11 is provided in the positioning groove 61 on the base 6.

[0019] Compared with the prior art, the utility model has the following advantages:

[0020] 1. The utility model filters through a filter component arranged in the air extraction channel, effectively avoiding substances in the negative pressure cavity from entering the air extraction port of the air extraction component or the inner cavity of the housing through the air extraction channel, resulting in pollution or blockage. It has the characteristics of safety, hygiene, and convenient use.

[0021] 2. To prevent the port at one end of the air extraction channel close to the negative pressure cavity from being blocked by contact with the user's skin during use, affecting the air extraction effect, the side wall of the plugging head is provided with an air extraction through hole for connecting the air extraction channel with the negative pressure cavity, which can avoid contact between the air extraction through hole and the user's skin and ensure that the air extraction through hole always keeps the negative pressure cavity and the air extraction channel connected.

[0022] 3. To facilitate the replacement of the filter component, the plugging head is detachably connected to the air extraction channel.

[0023] 4. To facilitate placement and positioning, the base is provided with a positioning groove for positioning the bottom of the housing.

[0024] 5. To make charging convenient and reliable, the bottom of the housing is provided with a housing charging terminal electrically connected to the storage battery, and the base is provided with a base charging terminal that is electrically connected to the housing charging terminal when the bottom of the housing is positioned in the positioning groove. Then, simply positioning the housing in the positioning groove can make the housing charging terminal and the base charging terminal electrically connected to charge the storage battery.

Description of the Drawings

[0025] The following further details the specific embodiments of the present utility model in conjunction with the drawings, where:

[0026] Figure 1 is one of the perspective views of the present utility model.

[0027] Figure 2 is the second perspective view of the present utility model.

[0028] Figure 3 is one of the structural schematic diagrams when the housing and the base of the present utility model are separated.

[0029] Figure 4 is the second structural schematic diagram when the housing and the base of the present utility model are separated.

[0030] Figure 5 is one of the exploded views of the present utility model.

[0031] Figure 6 is the second exploded view of the present utility model.

Specific Embodiments

[0032] The following details the embodiments of the present utility model in conjunction with the drawings.

[0033] Such as Figure 1-6As shown in the figure, a negative pressure device of the present utility model includes a housing 1, a negative pressure chamber 2 and an air extraction assembly 5 are provided on the housing 1, and an air extraction channel 3 for connecting the air extraction port of the negative pressure chamber 2 and the air extraction assembly 5 is provided between the negative pressure chamber 2 and the air extraction assembly 5 on the housing 1, and a filtering assembly 4 is provided in the air extraction channel 3. The present utility model performs filtering treatment by providing a filtering assembly in the air extraction channel, effectively avoiding substances in the negative pressure chamber from entering the air extraction port of the air extraction assembly or entering the inner cavity of the housing through the air extraction channel, resulting in pollution or blockage, and having the characteristics of safety, hygiene and convenient use.

[0034] As Figure 4-6 shown, in order to prevent the port at the end of the air extraction channel close to the negative pressure chamber from being blocked by contact with the user's skin during use, affecting the air extraction effect, a plugging head 31 is connected to the port on the side of the air extraction channel 3 close to the negative pressure chamber 2, and an air extraction through hole 311 for connecting the air extraction channel 3 and the negative pressure chamber 2 is provided on the side wall of the plugging head 31, which can prevent the air extraction through hole from contacting the user's skin and ensure that the air extraction through hole always keeps the negative pressure chamber and the air extraction channel connected. In some other embodiments, the port on the side of the air extraction channel 3 close to the negative pressure chamber 2 is blocked, and an air extraction through hole 311 for connecting the air extraction channel 3 and the negative pressure chamber 2 is provided on the side wall of the air extraction channel 3.

[0035] For convenient replacement, the plugging head 31 is detachably connected to the air extraction channel 3; the filtering assembly 4 is a filter cotton filled in the air extraction channel 3. Among them, the plugging head 31 is threadedly connected to the air extraction channel. The plugging head 31 includes a threaded connection cylinder for threaded connection with the air extraction channel and an operation convex block fixedly connected to the outer end of the threaded connection cylinder. The operation convex block has a convex block inner cavity communicating with the inner cavity of the threaded connection cylinder, and the air extraction through hole 311 is located on the side wall of the operation convex block and communicates with the convex block inner cavity, as Figure 4-6 shown. In order to better block the air extraction channel and facilitate installation, a blocking convex ring / edge that can abut against the edge of the port on the side of the air extraction channel close to the negative pressure chamber is provided at the outer end of the threaded connection cylinder. The present utility model uses filter cotton, which can also effectively reduce the replacement cost.

[0036] As Figure 4 、 6 shown, in order to make the present utility model better contact with the user's skin for use, a contact convex part 11 is formed by downward protrusion at the bottom of the housing 1, and the negative pressure chamber 2 is located on the contact convex part 11. As Figure 4 shown, in order to avoid scratching the user's skin and ensure that the bottom of the contact convex part 11 (the edge of the negative pressure chamber opening) contacts and fits with the user's skin, the bottom of the contact convex part 11 (the edge of the negative pressure chamber opening) is arranged in an arc shape.

[0037] As Figure 1-6As shown in the figure, in order to facilitate grasping and use, a handle 12 is formed by upward protrusion at the top of the housing 1. In order to prevent the housing from tipping over due to the offset of the center of gravity, the handle 12 includes an upwardly protruding extension connecting portion 121 and a grasping operation portion 122 connected to the upper end of the extension connecting portion 121 and located above the middle of the housing 1. In the present utility model, the housing includes a detachable upper housing and a lower housing. The handle 12 is integrally injection-molded with the upper housing, and the contact convex portion 11 is detachably connected to the lower housing or integrally injection-molded. In order to make the external structure of the present utility model neat, concise and meet the aesthetic requirements, the battery, the PCB board, the air extraction assembly, etc. are all installed in the inner cavity of the housing.

[0038] As Figure 4 , 6 shown, in order to endow the present utility model with a micro-electrotherapy function, a plurality of electrode patches 111 are circumferentially and spacedly arranged at the bottom of the housing 1, such as a positive electrode patch and a negative electrode patch arranged at intervals.

[0039] As Figure 5 shown, in order to be applicable to different environmental scenarios and for convenient use, a battery 7 is provided in the housing 1, and the battery 7 is electrically connected to the air extraction assembly 5.

[0040] As Figure 1-4 shown, in order to facilitate placement and positioning, a base 6 is further included. A positioning groove 61 for positioning the bottom of the housing 1 is provided on the base 6. In order to improve the positioning stability, a magnetic member or an iron block is provided on the base 6 and inside the positioning groove 61, and a corresponding iron block or magnetic member that can be magnetically adsorbed by the magnetic member or iron block of the base is provided at the bottom of the housing 1 to ensure accurate positioning.

[0041] As Figure 3-6 shown, in order to facilitate charging, a rechargeable battery 7 is provided in the housing 1, and the battery 7 is electrically connected to the air extraction assembly 5; a housing charging terminal 71 electrically connected to the battery 7 is provided at the bottom of the housing 1, and a base charging terminal 611 electrically connected to the housing charging terminal 71 when the bottom of the housing 1 is positioned in the positioning groove 61 is provided on the base 6. An external charging port 612 electrically connected to the base charging terminal 611 is further provided on the base 6. Then, only by positioning the housing in the positioning groove, the housing charging terminal can be electrically connected to the base charging terminal to charge the battery. Among them, the external charging port 612 can be a USB interface, a Lightning interface, etc.

[0042] As Figure 1 , 3 , 4 shown, in order to better position the housing, a positioning chute 62 that is in guiding and positioning cooperation with the contact convex portion 11 is provided in the positioning groove 61 on the base 6. The positioning chute 62 is in positioning cooperation with the contact convex portion 11, and the positioning groove 61 is in positioning cooperation with the bottom of the housing 1 to achieve a double positioning effect.

Claims

1. A negative pressure device, characterized in that The invention comprises a shell (1), wherein a negative pressure chamber (2) and an air extraction component (5) are provided on the shell (1); an air extraction channel (3) for connecting the negative pressure chamber (2) with the air extraction port of the air extraction component (5) is provided on the shell (1) and between the negative pressure chamber (2) and the air extraction component (5); a filter component (4) is provided in the air extraction channel (3); a plugging head (31) is connected to a port of the air extraction channel (3) close to the negative pressure chamber (2); a side wall of the plugging head (31) is provided with an air extraction hole (311) for connecting the air extraction channel (3) with the negative pressure chamber (2); or a port of the air extraction channel (3) close to the negative pressure chamber (2) is blocked, and a side wall of the air extraction channel (3) is provided with an air extraction hole (311) for connecting the air extraction channel (3) with the negative pressure chamber (2).

2. A negative pressure device according to claim 1, characterized in that The plugging head (31) is detachably connected to the air extraction channel (3); and the filter component (4) is filter cotton filled in the air extraction channel (3).

3. A negative pressure device according to claim 1, characterized in that The bottom of the shell (1) protrudes downward to form a contact convex portion (11), and the negative pressure chamber (2) is located on the contact convex portion (11).

4. A negative pressure device according to claim 1, characterized in that The top of the shell (1) protrudes upward to form a handle (12), and the handle (12) comprises an upwardly protruding extension connection portion (121) and a grasping operation portion (122) connected to the upper end of the extension connection portion (121) and located above the middle of the shell (1).

5. A negative pressure device according to claim 1, characterized in that A plurality of electrode patches (111) are provided at circumferential intervals on the bottom of the housing (1).

6. A negative pressure device according to claim 1, characterized in that A storage battery (7) is arranged in the housing (1), and the storage battery (7) is electrically connected to the air extraction component (5).

7. A negative pressure device according to any one of claims 1 to 6, characterized in that It also comprises a base (6), on which a positioning groove (61) is provided for positioning the bottom of the housing (1).

8. A negative pressure device according to claim 7, characterized in that A rechargeable storage battery (7) is arranged in the shell (1), and the storage battery (7) is electrically connected to the air extraction component (5); a shell charging terminal (71) electrically connected to the storage battery (7) is arranged at the bottom of the shell (1); a base charging terminal (611) electrically connected to the shell charging terminal (71) when the bottom of the shell (1) is positioned in the positioning groove (61) is arranged on the base (6); and an external charging port (612) electrically connected to the base charging terminal (611) is also arranged on the base (6).

9. A negative pressure device according to claim 7, characterized in that The bottom of the shell (1) protrudes downward to form a contact protrusion (11), and the negative pressure chamber (2) is located on the contact protrusion (11); a positioning groove (62) is provided on the base (6) and located in the positioning groove (61) to cooperate with the contact protrusion (11) for guiding and positioning.

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