Cell phone air return device

Abstract

The utility model relates to pneumatic water valve equipment technical field especially, it is a kind of mobile phone back gas device, it includes the mounting seat of setting in the shell one side of instrument tray, back gas bottle and the water-absorbing cotton filled in back gas bottle. The bottle mouth of back gas bottle is open setting, and the bottle bottom of back gas bottle is provided with multiple back gas holes. One end of mounting seat is inserted and fixed in the bottle mouth of back gas bottle. It is provided with several through back gas grooves on mounting seat, one end of back gas groove is communicated with shell interior, and the other end of back gas groove is communicated in back gas bottle interior. Mounting seat is set in the one side of instrument tray, avoid interference with support in the working process, and it is more safe, and it is also more convenient to install. Moreover, back gas bottle and mounting seat plug-in connection, and assembly efficiency is higher, and it is convenient to clean and replace water-absorbing cotton, very convenient to use. Water-absorbing cotton can play the effect of eliminating sewage in waste gas, can also play the effect of silencing, more environmental protection.

Description

Technical Field

[0001] This utility model relates to the field of air-controlled water valve equipment technology, and in particular to a mobile phone air return device. Background Technology

[0002] Dental comprehensive treatment machines are needed when treating dental diseases. In order to improve the convenience of use, existing dental comprehensive treatment machines are equipped with a rotating support, on which an instrument tray is installed. This instrument tray is used to hold various instruments and medications used in dental treatment.

[0003] In Chinese patent application number CN202220181368.2, entitled "Dental Comprehensive Treatment Machine Instrument Tray," a return gas bottle is installed at the bottom of the instrument tray's shell to prevent noise pollution from exhaust fumes. The return gas bottle is lined with sound-absorbing cotton. Typically, the return gas bottle is fixed to the instrument tray using a threaded connection, resulting in low assembly efficiency. Furthermore, when the instrument tray needs to be rotated, the return gas bottle is prone to impacting the entire support frame, posing a safety hazard and inconvenience in use. Utility Model Content

[0004] In order to address the technical deficiencies mentioned in the background art, the purpose of this utility model is to provide a mobile phone air return device.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A mobile phone recirculation device includes a mounting base disposed on one side of the housing of an instrument tray, a recirculation bottle, and absorbent cotton filled inside the recirculation bottle; the bottle opening of the recirculation bottle is open, and multiple recirculation holes are provided on the bottom of the bottle; one end of the mounting base is inserted and fixed to the bottle opening of the recirculation bottle; the mounting base is provided with a plurality of through recirculation grooves, one end of the recirculation grooves communicating with the interior of the housing, and the other end of the recirculation grooves communicating with the interior of the recirculation bottle.

[0007] By adopting the above technical solution, the mounting base is located on one side of the instrument panel, avoiding interference with the support during operation, thus improving safety and making installation more convenient. Furthermore, the plug-and-play connection between the return gas cylinder and the mounting base increases assembly efficiency, facilitates cleaning and replacement of the absorbent cotton, and is very convenient to use. The absorbent cotton not only removes wastewater from the exhaust gas but also provides noise reduction, making it more environmentally friendly.

[0008] Furthermore, a groove is provided on the outer circumference of the mounting base, and a sealing ring is disposed within the groove. A groove is provided on the inner wall of the gas return cylinder opening. The sealing ring protrudes from the groove and is located within the groove. The outer circumference of one end of the mounting base is fitted and connected to the inner wall of the gas return cylinder opening, resulting in a simple structure, easy installation, and high sealing performance.

[0009] Furthermore, a limiting ring is provided on the side of the slot away from the return gas cylinder. The side of the limiting ring abuts against the end of the return gas cylinder opening to prevent excessive force from causing the return gas cylinder to be inserted too deeply. This helps protect the return gas cylinder and makes installation simpler and more convenient.

[0010] Furthermore, the absorbent cotton comprises four cotton pads arranged in a square shape. The outlets of the multiple return air grooves are all located within the area enclosed by the four cotton pads, resulting in better removal of moisture from the exhaust gas. One end of each cotton pad is fixed to the bottom of the return air bottle, and the other end of each cotton pad abuts against the end face of the other end of the mounting base, ensuring good sealing and improving noise reduction.

[0011] Furthermore, adjacent cotton pads are arranged in an L-shape. Both sides of the cotton pads along the gas flow direction are fixedly connected to the inner wall of the return gas cylinder. The gap between the cotton pads and the inner wall of the return gas cylinder forms a water storage tank, facilitating wastewater storage, preventing environmental pollution, and promoting greater environmental friendliness and hygiene.

[0012] Furthermore, the return air groove and the return air hole are staggered in height, with the height of the return air groove being lower than that of the return air hole. This facilitates the rotation of the input waste gas within the return air bottle to ensure full contact with the absorbent cotton, thereby improving the water removal quality.

[0013] Furthermore, the return air groove is configured as a conical structure, and the end face area of ​​the return air groove inside the instrument panel is smaller than the end face area of ​​the return air groove inside the return air bottle, which increases the impact force of the air intake and can also diffuse the waste gas into the bottle body of the return air bottle.

[0014] Furthermore, the mounting base includes a base body and a vent connector. The base body is configured as a cylindrical structure, with one end of the vent connector protruding from the base body and located within the instrument tray, and the other end of the vent connector passing through the bottom wall of the base body. Multiple conical return air grooves are arranged side-by-side within the vent connector, resulting in a simple structure, easy processing, and low cost.

[0015] Furthermore, one end of the vent connector is provided with multiple vents, and each of the return air grooves is provided with a corresponding vent. The multiple vents are arranged side by side and staggered vertically for easy arrangement. The diameter of the vent is smaller than the minimum inner diameter of the return air groove, which increases the intake rate of the exhaust gas to increase the impact force of the exhaust gas on the absorbent cotton and improve the water absorption effect.

[0016] In summary, the beneficial effects of this utility model are as follows:

[0017] The mounting base in this invention is located on one side of the instrument tray, avoiding interference with the support during operation, thus enhancing safety and simplifying installation. Furthermore, the plug-and-play connection between the return gas cylinder and the mounting base improves assembly efficiency, facilitates cleaning and replacement of the absorbent cotton, and makes it extremely convenient to use. The absorbent cotton not only removes wastewater from the exhaust gas but also provides noise reduction, making it more environmentally friendly. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of an embodiment of the mobile phone air return device of this utility model installed on an instrument panel.

[0019] Figure 2 yes Figure 1 A magnified schematic diagram of structure A in the middle.

[0020] Figure 3 This is a front view of an embodiment of the mobile phone air return device of this utility model.

[0021] Figure 4 yes Figure 3 A schematic diagram of the cross-sectional structure of BB.

[0022] Figure 5 This is a schematic diagram of one embodiment of the mobile phone air return device of this utility model.

[0023] Figure 6 This is a schematic diagram of the structure of an embodiment of the mounting base for the mobile phone air return device of this utility model.

[0024] Figure 7 This is a schematic diagram of the structure of the gas return bottle and absorbent cotton of one embodiment of the mobile phone gas return device of this utility model.

[0025] Explanation of the reference numerals in the figure:

[0026] 1. Mobile phone air return device; 2. Mounting base; 21. Air return groove; 22. Slot; 23. Limiting ring; 24. Lug; 25. Base body; 26. Air connector; 261. Air nozzle; 27. Support plate; 28. Mounting plate; 281. Fixing groove; 29. ​​Sealing frame; 210. Guide plate; 3. Air return bottle; 31. Air return hole; 32. Groove; 41. Cotton pad; 42. Cotton strip; 5. Water tank; 6. Instrument tray. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model are within the protection scope of the present utility model.

[0028] Those skilled in the art should understand that, in the disclosure of this utility model, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the above terms should not be construed as limitations on this utility model.

[0029] In the description of this utility model, the use of terms such as "several" means one or more, with "multiple" meaning two or more. Terms like "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. The use of terms like "first," "second," and "third" is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, the quantity of indicated technical features, or the sequential relationship between indicated technical features.

[0030] The following is in conjunction with the appendix Figure 1-7 The embodiments of this utility model will be described in further detail below.

[0031] A mobile phone air return device 1, such as Figure 1 , Figure 2 , Figure 3 As shown, it includes a mounting base 2 disposed on one side of the housing of the instrument tray 6, a return gas bottle 3, and absorbent cotton filled inside the return gas bottle 3. The mouth of the return gas bottle 3 is open, and multiple return gas holes 31 are provided on the bottom of the return gas bottle 3. One end of the mounting base 2 is inserted and fixed to the mouth of the return gas bottle 3. The mounting base 2 is provided with several through return gas grooves 21, one end of the return gas groove 21 communicating with the inside of the housing, and the other end of the return gas groove 21 communicating with the inside of the return gas bottle 3.

[0032] Mounting base 2 is located on one side of the instrument tray 6, avoiding interference with the support during operation, thus enhancing safety and making installation more convenient. Furthermore, the return gas cylinder 3 is plugged into mounting base 2, resulting in higher assembly efficiency and easier cleaning and replacement of the absorbent cotton, making it very convenient to use. The absorbent cotton not only removes wastewater from the exhaust gas but also provides noise reduction, making it more environmentally friendly.

[0033] In some embodiments, please refer to Figure 3 , Figure 4 , Figure 6 , Figure 7The mounting base 2 has a groove 22 on its outer circumference, and a sealing ring is installed inside the groove 22. A groove 32 is provided on the inner wall of the gas return cylinder 3's opening. The side of the sealing ring protruding from the groove 22 is located within the groove 32. The outer circumference of one end of the mounting base 2 is fitted and connected to the inner wall of the gas return cylinder 3's opening. The structure is simple, easy to install, and provides high sealing performance. The sealing ring is not shown in the figure; a conventional O-ring is used.

[0034] For preferred options, please refer to [the provided text]. Figure 2 , Figure 6 A limiting ring 23 is provided on the side of the slot 22 away from the return gas cylinder 3. The side of the limiting ring 23 abuts against the end of the bottle mouth of the return gas cylinder 3 to prevent excessive force from causing the return gas cylinder 3 to be inserted too deeply, which helps to protect the return gas cylinder 3 and makes installation simpler and more convenient.

[0035] The limiting ring 23 is also provided with two lugs 24 on its periphery, which facilitates the manual installation of the mounting base 2 and can also increase the contact area between the mounting base 2 and the shell of the instrument tray 6, thereby increasing the load-bearing strength and resistance of the gas cylinder 3.

[0036] In some embodiments, please refer to Figure 4 , Figure 7 The absorbent cotton comprises four cotton pads 41 arranged in a square shape. The outlets of the multiple return air grooves 21 are all located within the area enclosed by the four cotton pads 41, resulting in better removal of water vapor from the exhaust gas. One end of each cotton pad 41 is fixed to the bottom of the return air bottle 3, and the other end of each cotton pad 41 abuts against the end face of the other end of the mounting base 2, ensuring good sealing and improving the noise reduction effect.

[0037] Specifically, two adjacent cotton pads 41 are arranged in an L-shape. Both sides of the cotton pads 41 along the direction of gas flow are fixedly connected to the inner wall of the return gas bottle 3. The gap between the cotton pads 41 and the inner wall of the return gas bottle 3 forms a water storage tank 5, which facilitates the storage of wastewater, prevents environmental pollution, and is more environmentally friendly and hygienic.

[0038] In some embodiments, please refer to Figure 4 The return air groove 21 and the return air hole 31 are staggered in height, with the height of the return air groove 21 being lower than that of the return air hole 31. This allows the input waste gas to rotate within the return air bottle 3, ensuring full contact with the absorbent cotton and improving the water removal quality. Four return air grooves and four return air holes are provided.

[0039] For preferred options, please refer to [the provided text]. Figure 2 , Figure 6The return air groove 21 is designed with a conical structure. The end face area of ​​the return air groove 21 inside the instrument plate 6 is smaller than the end face area of ​​the return air groove 21 inside the return air bottle 3. This increases the impact force of the air intake and also diffuses the exhaust gas into the body of the return air bottle 3 and increases the flow rate of the exhaust gas in the body of the return air bottle 3, thereby improving the efficiency of exhaust gas cleaning and emission.

[0040] In some embodiments, please refer to Figure 6 The mounting base 2 includes a base body 25 and a vent connector 26. The base body 25 is a cylindrical structure. One end of the vent connector 26 protrudes from the base body 25 and is located inside the instrument tray 6, while the other end of the vent connector 26 passes through the bottom wall of the base body 25. Multiple conical return air grooves 21 are arranged side-by-side inside the vent connector 26. The structure is simple, easy to manufacture, and has a low cost.

[0041] For details, please refer to Figure 2 , Figure 6 One end of the vent connector 26 is provided with multiple vent nozzles 261. Each return air groove 21 is provided with a corresponding vent nozzle 261. The multiple vent nozzles 261 are arranged side by side and staggered vertically to facilitate the mixing of exhaust gas and make the exhaust gas rotate. The diameter of the vent nozzle 261 is smaller than the minimum inner diameter of the return air groove 21, which increases the intake rate of exhaust gas and increases the impact force of exhaust gas on the absorbent cotton, thereby improving the water absorption effect.

[0042] Please refer to Figure 2 Several support plates 27 can be provided between the vent connector 26 and the inner wall of the base 25 to improve the support strength of the vent connector 26 and help protect the vent connector 26. The base 25 is provided with a mounting plate 28 protruding below the vent connector 26. The mounting plate 28 is provided with two mounting screw grooves 281 to facilitate fixing the mounting base 2 into the housing of the instrument tray 6.

[0043] Please refer to Figure 4 , Figure 6 A square sealing frame 29 and a guide plate 210 are protruding from the end face of the mounting base 2 located inside the return gas cylinder 3. The upper surface of the guide plate 210 abuts against the side of the absorbent cotton inside the return gas cylinder 3, which can improve the sealing effect. The outlet ends of multiple return gas grooves 21 are arranged side by side and located inside the sealing frame 29. A strip of cotton 42 is provided at the lower end of the sealing frame 29. The cotton 42 and the absorbent cotton at the lower end of the return gas cylinder 3 are arranged in an L-shape and connected to form a whole, which can improve the sealing performance and noise reduction effect. There are four return gas grooves 21. The side of the cotton 42 is in close contact with the end face of the base 25 to form a sealed water storage tank 5 to prevent wastewater from overflowing. When wastewater is stored in the water storage tank 5, the return gas cylinder 3 can be directly pulled out for cleaning and replacement of the internal absorbent cotton.

[0044] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Identical components are represented by the same reference numerals. Therefore, all equivalent changes made to the structure, shape, and principle of this application should be covered within the scope of protection of this application.

Claims

1. A mobile phone air return device, characterized in that, The device includes a mounting base (2) located on one side of the housing of the instrument tray (6), a return gas bottle (3), and absorbent cotton filled in the return gas bottle (3); the mouth of the return gas bottle (3) is open, and multiple return gas holes (31) are provided on the bottom of the return gas bottle (3); one end of the mounting base (2) is inserted and fixed to the mouth of the return gas bottle (3); the mounting base (2) is provided with several through return gas grooves (21), one end of the return gas groove (21) is connected to the inside of the housing, and the other end of the return gas groove (21) is connected to the inside of the return gas bottle (3).

2. The mobile phone air return device according to claim 1, characterized in that, The mounting base (2) has a slot (22) on the outer circumference of the base body (25), and a sealing ring is provided in the slot (22); a groove (32) is provided on the inner wall of the bottle mouth of the return gas bottle (3); the side of the sealing ring protruding from the slot (22) is located in the groove (32); the outer circumference of one end of the mounting base (2) is fitted and connected to the inner wall of the bottle mouth of the return gas bottle (3).

3. The mobile phone air return device according to claim 2, characterized in that, A limiting ring (23) protrudes from the side of the slot (22) away from the return gas bottle (3), and the side of the limiting ring (23) abuts against the end of the bottle mouth of the return gas bottle (3).

4. The mobile phone air return device according to claim 1, characterized in that, The absorbent cotton includes four cotton pads (41), which are arranged in a square shape. The air outlets of the multiple air return grooves (21) are all located in the area enclosed by the four cotton pads (41). One end of each cotton pad (41) is fixed to the bottom of the air return bottle (3), and the other end of each cotton pad (41) abuts against the end face of the other end of the mounting base (2).

5. The mobile phone air return device according to claim 4, characterized in that, The two adjacent cotton pads (41) are arranged in an L-shape; both sides of the cotton pads (41) along the direction of gas flow are fixedly connected to the inner wall of the return gas bottle (3), and the gap between the cotton pads (41) and the inner wall of the return gas bottle (3) forms a water storage tank (5).

6. The mobile phone air return device according to claim 1, characterized in that, The return air groove (21) and the return air hole (31) are offset in height, with the height of the return air groove (21) being lower than the height of the return air hole (31).

7. The mobile phone air return device according to claim 1, characterized in that, The return gas groove (21) is configured as a conical structure, and the end face area of ​​the return gas groove (21) located in the instrument plate (6) is smaller than the end face area of ​​the return gas groove (21) located in the return gas bottle (3).

8. The mobile phone air return device according to claim 7, characterized in that, The mounting base (2) includes a base body (25) and a vent connector (26); the base body (25) is configured as a cylindrical structure, one end of the vent connector (26) protrudes from the base body (25) and is located inside the instrument tray (6), and the other end of the vent connector (26) passes through the bottom wall of the base body (25); a plurality of conical air return grooves (21) are arranged side by side inside the vent connector (26).

9. The mobile phone air return device according to claim 8, characterized in that, One end of the vent connector (26) is provided with multiple vent nozzles (261), and each of the return air grooves (21) is provided with a corresponding vent nozzle (261). The multiple vent nozzles (261) are arranged side by side and staggered vertically. The diameter of the vent nozzle (261) is smaller than the minimum inner diameter of the return air groove (21).

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