Negative pressure sealing garbage can
By establishing pressure differences in the inside and outside of the trash can, the use of atmospheric pressure is used to force the lid of the trash can more closely, using the exhaust mechanism to form gas pressure difference, solving the problem of poor sealing of existing trash cans, and realizing a better smell closed. Effect.
Patent Information
- Application Number
- CN202421074624.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-16
- Publication Date
- 2025-01-24
- Estimated Expiration
- 2034-05-16
AI Technical Summary
The existing trash cans cannot achieve good sealing, causing the odor of garbage in the trash cans to overflow and affect the ambient air quality.
By establishing a certain pressure difference between the trash can and outside the barrel, the use of the atmospheric pressure to force the lid of the trash can to be closer to the mouth of the barrel, and use the exhaust mechanism to discharge some of the gas in the trash can to form a gas pressure difference to seal.
It can effectively prevent the continuous emission of odor in the barrel, improve the sealing performance of the trash can, and improve the ambient air quality.
Smart Images
Figure CN222388850U_ABST
Abstract
Description
[Technical field]
[0002] The present application belongs to the technical field of daily necessities, and specifically relates to a negative pressure sealed trash can. [Background technology]
[0004] Existing trash cans often face a problem during use, that is, they cannot be well sealed, causing the smell of the trash in the can to overflow, seriously affecting the air quality of the surrounding environment. Especially when there is rotten and smelly trash in the can, the smell will be more serious, causing great trouble to people's lives and work. [Contents of the utility model]
[0006] In order to solve the problem of odor overflow from garbage in the trash can in the prior art, the present application provides a negative pressure sealed trash can that establishes a certain pressure difference between the inside and outside of the trash can and utilizes the effect of atmospheric pressure to enable the trash can lid to be pressed more tightly against the mouth of the trash can, thereby effectively preventing the continuous emission of odor from the trash can.
[0007] This application is implemented through the following technical solutions:
[0008] A negative pressure sealed trash can comprises a trash can body, a trash can cover body covering the trash can body, and an exhaust mechanism arranged on the trash can cover body and used to exhaust the air in the trash can body to form an air pressure difference inside and outside the trash can.
[0009] In a negative pressure sealed trash can as described above, the exhaust mechanism includes an inner wall of a chamber arranged in the trash can body, a pressing piece partially passing through the trash can cover and cooperating with the inner wall of the chamber to form an exhaust chamber, and a first sealing ring arranged between the pressing piece and the inner wall of the chamber, the pressing piece is provided with an inclined flange arranged along its outer contour and for the first sealing ring to be placed, and the exhaust chamber connects the inside and outside of the trash can.
[0010] In a negative pressure sealed trash can as described above, the pressing member is provided with a limiting flange located above the inclined flange, the limiting flange has at least one exhaust hole, and the limiting flange cooperates with the inclined flange to limit the movement range of the first sealing ring relative to the inclined flange.
[0011] In the negative pressure sealed trash can as described above, a gas one-way valve is provided at the bottom of the inner wall of the chamber for allowing the gas in the trash can to enter the exhaust chamber and blocking the gas in the exhaust chamber from entering the trash can.
[0012] In a negative pressure sealed trash can as described above, the gas one-way valve includes an air inlet hole provided at the bottom of the inner wall of the chamber and connecting the interior of the trash can body with the exhaust chamber, and a sealing rubber plug passing through the inner wall of the chamber and covering the air inlet hole on the inner side of the inner wall of the chamber, and the sealing rubber plug is provided with a limiting portion deviating from the air inlet hole on the outer side of the inner wall of the chamber.
[0013] In a negative pressure sealed trash can as described above, the gas one-way valve also includes a raised groove wall extending upward from the bottom of the inner wall of the chamber, the air inlet is located at the top of the raised groove wall, and the inner side of the pressing member is provided with a protrusion extending downward and corresponding to the raised groove wall, and the raised groove wall and the protrusion are respectively provided for the two ends of the elastic member to be plugged in.
[0014] A negative pressure sealed trash can as described above also includes a pressure relief button passing through the trash can cover and the inner wall of the chamber, a second sealing ring with an interference fit with the inner wall of the chamber is provided at the bottom of the pressure relief button, and an elastic member is provided between the inner wall of the chamber and the pressure relief button.
[0015] In the negative pressure sealed trash can as described above, the inner wall of the chamber is provided with a limiting hole extending upward and for the pressure relief button to pass through so as to keep the pressure relief button sliding up and down.
[0016] In the negative pressure sealed trash can as described above, the trash can cover is provided with a third sealing ring arranged along its outer contour, and when the trash can cover is closed relative to the trash can body, the third sealing ring corresponds to the top outer contour of the trash can body.
[0017] In the negative pressure sealed trash can as described above, the trash can cover is hingedly connected to the trash can body.
[0018] Compared with the prior art, this application has the following advantages:
[0019] The negative pressure sealed trash can of the present application discharges part of the gas in the trash can through an exhaust mechanism to form a certain air pressure difference between the inside and outside of the trash can, and utilizes the effect of atmospheric pressure to enable the trash can lid to be pressed more tightly against the trash can mouth, thereby effectively preventing the continuous emission of odor in the trash can.
Brief Description of the Drawings
[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.
[0022] Figure 1It is a three-dimensional stereogram in the embodiment of the present application;
[0023] Figure 2 yes Figure 1 A top view of
[0024] Figure 3 yes Figure 2 Sectional view at AA;
[0025] Figure 4 yes Figure 1 Decomposition of Figure 1 ;
[0026] Figure 5 yes Figure 1 Decomposition of Figure 2 ;
[0027] Figure 6 It is a three-dimensional stereogram of the inner wall of the chamber in an embodiment of the present application. [Specific implementation method]
[0029] In order to make the technical problems, technical solutions and beneficial effects solved by the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.
[0030] See also Figures 1 to 6 A negative pressure sealed trash can comprises a trash can body 1, a trash can cover body 2 covering the trash can body 1, and an exhaust mechanism 3 arranged on the trash can cover body 2 and used to exhaust the air in the trash can body 1 to form an air pressure difference inside and outside the trash can.
[0031] The negative pressure sealed trash can of the present application discharges part of the gas in the trash can through an exhaust mechanism to form a certain air pressure difference between the inside and outside of the trash can, and utilizes the effect of atmospheric pressure to enable the trash can lid to be pressed more tightly against the trash can mouth, thereby effectively preventing the continuous emission of odor in the trash can.
[0032] Furthermore, as a preferred embodiment of the present invention but not a limitation, the exhaust mechanism 3 includes a chamber inner wall 31 disposed in the trash can body 1, a pressing piece 33 partially passing through the trash can cover 2 and cooperating with the chamber inner wall 31 to form an exhaust chamber 32, and a first sealing ring 34 disposed between the pressing piece 33 and the chamber inner wall 31, the pressing piece 33 is provided with an inclined flange 331 arranged along its outer contour and for placing the first sealing ring 34, and the exhaust chamber 32 connects the inside and outside of the trash can.
[0033] In this embodiment, when the pressing piece moves downward relative to the inner wall of the chamber, the first sealing ring floats upward to discharge the air in the exhaust chamber from the gap between the pressing piece and the inner wall of the chamber. When the pressing piece moves upward relative to the inner wall of the chamber, the first sealing ring floats downward to seal the gap between the pressing piece and the inner wall of the chamber to prevent external air from entering the exhaust chamber. At the same time, the air in the trash can body is refilled into the exhaust chamber. This reciprocating process can continuously reduce the air in the trash can and form an air pressure difference between the inside and the outside. The atmospheric pressure of the external air presses the trash can cover to achieve a sealing effect.
[0034] Furthermore, as a preferred implementation of the present solution but not a limitation, the pressing member 33 is provided with a limiting flange 332 located above the inclined flange 331, and the limiting flange 332 has at least one exhaust hole 333. The limiting flange 332 cooperates with the inclined flange 331 to limit the movement range of the first sealing ring 34 relative to the inclined flange 331.
[0035] In this embodiment, by providing a limiting flange and an exhaust hole on the pressing member, the efficiency and reliability of the exhaust mechanism can be further improved. The cooperation between the limiting flange and the inclined flange can limit the movement range of the first sealing ring, ensuring that it can accurately seal and exhaust when the pressing member moves up and down. When the pressing member moves upward relative to the inner wall of the chamber, the first sealing ring can seal the gap between the pressing member and the inner wall of the chamber more quickly, thereby improving the exhaust efficiency. At the same time, the provision of the exhaust hole can increase the connection area between the exhaust chamber and the outside world, allowing the air to be discharged more smoothly, thereby accelerating the speed of forming the pressure difference between the inside and outside of the trash can.
[0036] Furthermore, as a preferred embodiment of the present invention but not a limitation, a gas one-way valve 35 is provided at the bottom of the inner wall 31 of the chamber for allowing the gas in the trash can to enter the exhaust chamber 32 and blocking the gas in the exhaust chamber 32 from entering the trash can.
[0037] Furthermore, as a preferred embodiment of the present invention but not a limitation, the gas one-way valve 35 includes an air inlet 351 which is arranged at the bottom of the chamber inner wall 31 and connects the interior of the trash can body 1 with the exhaust chamber 32, and a sealing plug 352 which passes through the chamber inner wall 31 and covers the air inlet 351 on the inner side of the chamber inner wall 31; the sealing plug 352 is located on the outer side of the chamber inner wall 31 and is provided with a limiting portion 353 which deviates from the air inlet 351.
[0038] In this embodiment, by adopting the structural design of the sealing rubber plug and the limiting part, reliable control of the gas one-way valve can be achieved. When the gas pressure in the trash can is greater than the exhaust chamber, the gas will push the sealing rubber plug to move upward, so that the air inlet hole is opened, thereby realizing the flow of gas from the inside of the trash can to the exhaust chamber, and the limiting part will prevent the sealing rubber plug from continuing to move upward. When the gas pressure in the exhaust chamber is greater than that in the trash can, the air inlet hole is blocked to prevent gas backflow. The structure of the sealing rubber plug and the limiting part is simple and reliable, and the manufacturing cost is low; secondly, by setting the limiting part, the sealing rubber plug can be prevented from excessively moving up and leaving the air inlet hole, thereby improving the reliability of the gas one-way valve; finally, since the sealing rubber plug is located on the outer side of the inner wall of the chamber, it can be easily replaced and maintained. Other structural forms of gas one-way valves can also be used, such as diaphragm type, ball valve type, etc. These structural forms can be selected according to specific application requirements to achieve precise control of gas flow.
[0039] Furthermore, as a preferred embodiment of the present invention but not a limitation, the gas one-way valve 35 also includes a raised groove wall 354 extending upward from the bottom of the inner wall 31 of the chamber, the air inlet 351 is located at the top of the raised groove wall 354, and the inner side of the pressing member 33 is provided with a protrusion 355 extending downward and corresponding to the raised groove wall 354, and the raised groove wall 354 and the protrusion 355 are respectively provided for the two ends of the elastic member to be plugged in.
[0040] In this embodiment, by adding the structure of the raised groove wall and the bump, it is convenient to set an elastic member between the inner wall of the chamber and the pressing member. When pressure is applied to the pressing member to move downward, the elastic member will be compressed. After the pressure is stopped, the pressing member will automatically reset upward under the elastic force of the elastic member, which is convenient for the user to perform the next step of pressing and exhausting operation, and the user experience is better and more convenient.
[0041] Furthermore, as a preferred embodiment of the present invention but not a limitation, it also includes a pressure relief button 36 passing through the trash can cover 2 and the chamber inner wall 31, and a second sealing ring 37 with an interference fit with the chamber inner wall 31 is provided at the bottom of the pressure relief button 36, and an elastic member is provided between the chamber inner wall 31 and the pressure relief button 36.
[0042] In this embodiment, by setting a pressure relief button between the trash can cover and the inner wall of the chamber, and setting a second sealing ring and an elastic member at the bottom of the pressure relief button, the internal air pressure of the trash can and the external atmospheric pressure can be balanced. When the internal air pressure of the trash can is low and the external atmospheric pressure is high, the trash can cover is difficult to open. The pressure relief button can be pressed to separate the second sealing ring from the inner wall of the chamber, so that the external air enters the trash can to balance the pressure difference between the inside and the outside. The trash can can be opened conveniently and the user can dump the garbage. The setting of the pressure relief button can timely adjust the excess air pressure inside the trash can to avoid the external atmospheric pressure from squeezing, deforming or damaging the trash can due to too low air pressure; secondly, the coordinated use of the second sealing ring and the elastic member can ensure that the inside of the trash can maintains a certain negative pressure state during normal use, thereby improving the sealing effect; in addition, the pressure relief button is simple and convenient to operate, and the user can adjust the air pressure difference by manually pressing for a certain period of time.
[0043] Further, as a preferred implementation of the present solution but not a limitation, the chamber inner wall 31 is provided with a limiting hole 38 extending upward and for the pressure relief button 36 to pass through so as to keep the pressure relief button 36 sliding up and down.
[0044] In this embodiment, by providing a limiting hole on the inner wall of the chamber, the pressure relief push piece can be guided and limited to slide up and down, so that it can move stably and smoothly during the pressing process. Specifically, the provision of the limiting hole can prevent the pressure relief push piece from deflecting or getting stuck during pressing, ensuring that it maintains good sealing contact with the inner wall of the chamber, thereby improving the reliability and efficiency of the pressure relief operation.
[0045] Furthermore, as a preferred implementation of the present invention but not a limitation, the trash can cover 2 is provided with a third sealing ring 39 arranged along its outer contour. When the trash can cover 2 is closed relative to the trash can body 1, the third sealing ring 39 corresponds to the top outer contour of the trash can body 1.
[0046] In this embodiment, by providing a third sealing ring on the trash can cover, the sealing performance of the trash can can be further improved. When the trash can cover is closed with the trash can body, the third sealing ring contacts the top outer contour of the trash can body to form a tight sealing barrier, thereby enhancing the sealing effect between the trash can cover and the body, improving its anti-leakage performance, and effectively preventing the overflow of odor and bacteria in the trash can.
[0047] Furthermore, as a preferred implementation mode of the present invention but not limitation, the trash can cover 2 is hingedly connected to the trash can body 1 .
[0048] In this embodiment, by connecting the trash can cover and the trash can body in a hinged manner, the trash can cover can be opened and closed flexibly, which is convenient for users to put in and clean up garbage. Specifically, the hinged structure allows the trash can cover to rotate around a fixed axis to achieve the action of opening and closing. The hinged structure makes the opening and closing of the trash can cover more labor-saving. The user only needs to lift or press the cover lightly to open or close the cover; secondly, the hinged structure allows the trash can cover to maintain a certain opening angle, which is convenient for users to put in, take out or dump garbage bags; in addition, the hinged structure also has a certain buffering effect, which can reduce the noise and impact force generated when the lid is closed. The hinged structure can also be improved and optimized. For example, a damper or a buffer pad can be added to further reduce the impact force when the lid is closed; or a locking mechanism can be added to the hinge shaft to prevent the lid from opening accidentally. In addition, other types of connection methods, such as snap-on type, magnetic type, etc., can also be considered to meet different design requirements and usage habits.
[0049] The working principle of this embodiment is as follows:
[0050] The negative pressure sealed trash can of the present application discharges part of the gas in the trash can through an exhaust mechanism to form a certain air pressure difference between the inside and outside of the trash can, and utilizes the effect of atmospheric pressure to enable the trash can lid to be pressed more tightly against the trash can mouth, thereby effectively preventing the continuous emission of odor in the trash can.
[0051] The above are implementation methods provided in combination with specific contents, and it is not intended that the specific implementation of this application is limited to these descriptions. Any method structure similar to the present application, or a number of technical deductions or replacements based on the concept of the present application, should be considered as the protection scope of this application.
Claims
1. A negative pressure sealed trash can, characterized in that: It comprises a trash can body (1), a trash can cover body (2) covering the trash can body (1), and an exhaust mechanism (3) provided on the trash can cover body (2) and used to exhaust the air in the trash can body (1) so as to form an air pressure difference between the inside and outside of the trash can; The exhaust mechanism (3) comprises a chamber inner wall (31) arranged in the trash can body (1), a pressing piece (33) partially passing through the trash can cover (2) and cooperating with the chamber inner wall (31) to form an exhaust chamber (32), and a first sealing ring (34) arranged between the pressing piece (33) and the chamber inner wall (31); the pressing piece (33) is provided with an inclined flange (331) arranged along its outer contour and for the first sealing ring (34) to be placed; the exhaust chamber (32) communicates with the inside and outside of the trash can.
2. A negative pressure sealed trash can according to claim 1, characterized in that: The pressing member (33) is provided with a limiting flange (332) located above the inclined flange (331), the limiting flange (332) having at least one exhaust hole (333), and the limiting flange (332) cooperates with the inclined flange (331) to limit the movement range of the first sealing ring (34) relative to the inclined flange (331).
3. A negative pressure sealed trash can according to claim 1, characterized in that: A gas one-way valve (35) is provided at the bottom of the inner wall (31) of the chamber, which is used to allow gas in the trash can to enter the exhaust chamber (32) and to prevent gas in the exhaust chamber (32) from entering the trash can.
4. A negative pressure sealed trash can according to claim 3, characterized in that: The gas one-way valve (35) comprises an air inlet (351) disposed at the bottom of the chamber inner wall (31) and connecting the interior of the trash can body (1) with the exhaust chamber (32), and a sealing rubber plug (352) passing through the chamber inner wall (31) and covering the air inlet (351) on the inner side of the chamber inner wall (31); the sealing rubber plug (352) is provided with a limiting portion (353) deviating from the air inlet (351) on the outer side of the chamber inner wall (31).
5. A negative pressure sealed trash can according to claim 4, characterized in that: The gas one-way valve (35) further comprises a raised groove wall (354) extending upward from the bottom of the chamber inner wall (31); the air inlet (351) is located at the top of the raised groove wall (354); the inner side of the pressing member (33) is provided with a protrusion (355) extending downward and corresponding to the raised groove wall (354); the raised groove wall (354) and the protrusion (355) are respectively connected to the two ends of the elastic member.
6. The negative pressure sealed trash can according to claim 1, characterized in that: It also comprises a pressure relief button (36) passing through the trash can cover (2) and the inner wall (31) of the chamber, a second sealing ring (37) having an interference fit with the inner wall (31) of the chamber is provided at the bottom of the pressure relief button (36), and an elastic member is provided between the inner wall (31) of the chamber and the pressure relief button (36).
7. A negative pressure sealed trash can according to claim 6, characterized in that: The inner wall (31) of the chamber is provided with a limiting hole (38) extending upward and allowing the pressure relief push piece (36) to pass through so as to keep the pressure relief push piece (36) sliding up and down.
8. The negative pressure sealed trash can according to claim 1, characterized in that: The trash can cover (2) is provided with a third sealing ring (39) arranged along its outer contour; when the trash can cover (2) is closed relative to the trash can body (1), the third sealing ring (39) corresponds to the outer contour of the top of the trash can body (1).
9. The negative pressure sealed trash can according to claim 1, characterized in that: The trash can cover (2) is hingedly connected to the trash can body (1).