Garbage can
By incorporating a ring-shaped end face and a sealing lid design on the outer wall of the trash can, combined with an alarm component, the problem of insufficient sealing in the trash can is solved, achieving higher sealing performance and safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-18
- Publication Date
- 2026-03-10
AI Technical Summary
The existing trash cans are not airtight enough, which makes it easy for odors or harmful gases to escape from inside the trash cans, affecting the safety of use.
Design a trash can with a circumferential and protruding annular end face on the outer wall of the can body at the opening, the lid of the can being sealed to the annular end face, and equipped with an alarm component that sounds an alarm when the air pressure reaches a certain value.
It improves the sealing of the trash can, reduces odor leakage, lowers the risk of safety accidents, and enhances safety in use.
Smart Images
Figure CN223982960U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of trash can manufacturing, and more particularly to a trash can. Background Technology
[0002] Trash cans are common utensils in various production activities and daily life. When using trash cans, people usually put a trash bag inside the can first, and then throw the trash into the bag to avoid contaminating the trash can and thus reducing labor intensity. Moreover, because trash can easily emit odors or harmful gases, most trash cans on the market are designed with lids. That is, the lid is opened when throwing away trash, and closed at other times to prevent odors or harmful gases from escaping from the trash can.
[0003] However, the sealing performance of trash cans still needs improvement. Utility Model Content
[0004] The problem solved by this utility model embodiment is to provide a trash can that improves the problem of odors or harmful gases escaping from the trash can after using a trash bag.
[0005] To address the aforementioned problems, this utility model provides a trash can, comprising: a can body, the top of which has an opening, and a preset position on the outer side wall of the can body, wherein an annular end face is provided at the preset position, surrounding and protruding from the opening; a can lid, which, when closed, seals the opening, and the bottom of the can lid is in a sealing fit with the annular end face of the can body; and an alarm component, disposed on the can lid or the can body, the alarm component being used to issue an alarm when the air pressure inside the can body is greater than or equal to a first preset value.
[0006] Optionally, the bottom of the bucket lid and the annular end face are magnetically sealed.
[0007] Optionally, a sealing ring is provided on one of the bottom edge of the bucket lid and the annular end face, and the other has an annular sealing groove. When the bucket lid is closed, the sealing ring is embedded in the annular sealing groove.
[0008] Optionally, the alarm component includes a power supply component, an alarm indicator component, and a pressure sensing switch connected in series in the same alarm circuit; wherein, the pressure sensing switch is used to disconnect when the air pressure inside the barrel is less than a first preset value, and to close when the air pressure inside the barrel is greater than or equal to the first preset value, thereby activating the alarm circuit.
[0009] Optionally, the bucket lid includes a first surface and a second surface opposite to the first surface, wherein when the bucket lid is closed, the first surface faces the bucket body; the alarm component is disposed on the bucket lid; the pressure sensing switch is disposed on the first surface of the bucket lid; the pressure sensing switch includes: a first stationary contact disposed on the first surface; a second stationary contact disposed on the first surface and spaced apart from the first stationary contact, both the first and second stationary contacts having a first contact surface facing away from the first surface; and a moving contact assembly disposed on the first surface, the outer wall of the moving contact assembly and the first surface forming a pressure sensing area. The cavity, the projection pattern of the moving contact assembly on the first contact surface, covers at least a portion of the first stationary contact and a portion of the second stationary contact. The moving contact assembly has a second contact surface disposed opposite to the first contact surface. In the state where the pressure-sensitive switch is open, there is a gap between the second contact surface and the first contact surface of the first stationary contact, and between the second contact surface and the first contact surface of the second stationary contact. In the state where the pressure-sensitive switch is closed, the second contact surface is in contact with the first contact surface of the first stationary contact, and between the second contact surface and the first contact surface of the second stationary contact.
[0010] Optionally, the moving contact assembly includes: a flexible pressure membrane suspended on the first contact surface, wherein the projection pattern of the flexible pressure membrane on the first contact surface at least covers a portion of the first stationary contact and a portion of the second stationary contact; a moving contact disposed on the side of the flexible pressure membrane facing the first contact surface, the moving contact having a second contact surface opposite to the first contact surface, wherein the projection pattern of the second contact surface of the moving contact on the first contact surface covers the first stationary contact and the second stationary contact; and a fastener fixedly disposed between the first surface and the flexible pressure membrane, and located at the edge of the flexible pressure membrane. 。
[0011] Optionally, when the air pressure inside the barrel is the same as the air pressure of the external environment, the distance between the second contact surface and the first contact surface of the first stationary contact point is in the range of 1 mm to 3 mm; when the air pressure inside the barrel is the same as the air pressure of the external environment, the distance between the second contact surface and the first contact surface of the second stationary contact point is in the range of 1 mm to 3 mm.
[0012] Optionally, the bucket lid includes a first side and a second side disposed opposite to the first side, wherein when the bucket lid is in the closed state, the first side faces the bucket body; the alarm component is disposed on the bucket lid; wherein the power supply component is disposed in the bucket lid; and the alarm indicator component is disposed on the second side of the bucket lid.
[0013] Optionally, the alarm indicator component includes a sound generating element and a light display element connected in series or in parallel.
[0014] Optionally, the trash can also include a fastener for quick connection between the can body and the lid, the fastener including: a fastener seat disposed on the side wall of the lid and near the bottom of the lid, and a fastener head disposed on the side wall of the can body and near the top of the can body.
[0015] Optionally, the lid includes a first side and a second side opposite to the first side, wherein the first side faces the bin body when the lid is closed; the trash can further includes a pressure relief component disposed in the lid, wherein the pressure relief port of the pressure relief component is disposed on the side wall of the lid, or, the pressure relief port of the pressure relief component is disposed on the second side of the lid, or, the pressure relief port of the pressure relief component is disposed on the side wall and the second side of the lid, wherein the pressure relief component is used to release gas in the bin body when the gas pressure in the bin body is greater than or equal to a second preset value.
[0016] Optionally, the pressure relief assembly includes: a main air guide channel, longitudinally disposed in the barrel lid, the main air guide channel having an air inlet end located on the first side of the barrel lid, and a closed end disposed opposite to the air inlet end; a bypass air guide channel, transversely disposed in the barrel lid and communicating with the side wall of the main air guide channel, the air outlet end of the bypass air guide channel communicating with the pressure relief port, or the air outlet end of the bypass air guide channel serving as the pressure relief port; and a valve core disposed in the main air guide channel, wherein when the air pressure inside the barrel is greater than or equal to a second preset value, the valve core moves to the closed end position of the main air guide channel, connecting the air inlet end of the main air guide channel with the air inlet end of the bypass air guide channel.
[0017] Optionally, the pressure relief assembly further includes a manual pressure relief component disposed in the main air guide channel. One end of the manual pressure relief component is fixedly connected to the top of the valve core, and the other end is a free end. The manual pressure relief component is used to pull the valve core so that the valve core moves to the closed end position of the main air guide channel.
[0018] Optionally, the lid is hinged to the body of the bin; the trash can further includes: a foot pedal, disposed at the bottom of the body of the bin, with one end of the foot pedal protruding outside the body of the bin; a linkage mechanism, disposed at the bottom and outer wall of the body of the bin, with one end of the linkage mechanism hinged to the foot pedal and the other end hinged to the lid; and a handle, disposed on the side wall of the lid, with the handle and the linkage mechanism on the outer wall of the body of the bin located on the same straight line.
[0019] Compared with the prior art, the technical solution of this utility model embodiment has the following advantages:
[0020] The trash can provided in this embodiment includes a can body with an opening at the top, and a preset position is provided on the outer wall of the can body. An annular end face is provided at the preset position, which surrounds and protrudes from the opening. A can lid is provided. When the can lid is in the closed state, the can lid seals the opening, and the bottom of the can lid is sealed to the annular end face of the can body. An alarm component is provided on the can lid or on the can body. The alarm component is used to issue an alarm when the air pressure inside the can body is greater than or equal to a first preset value. Because the bin has an annular end face that surrounds and protrudes from the opening at a preset position, when the outer wall of the bin at the top of the annular end face supports the opening of a garbage bag turned outward from the opening, the outer side of the outer wall of the bin at the top of the annular end face has space to accommodate the opening of the garbage bag. This means that when a garbage bag is used inside the bin, the seal between the bottom of the lid and the annular end face of the bin is less affected by the garbage bag, resulting in a better seal and thus improving the overall airtightness of the bin. Furthermore, the alarm component can sound an alarm when the air pressure inside the bin is greater than or equal to a first preset value, allowing for timely disposal of garbage inside the bin, thereby reducing the probability of accidents and improving safety when using the garbage bin. Attached Figure Description
[0021] Figure 1 This is a structural diagram of a trash can;
[0022] Figure 2 This is a schematic diagram of the structure of an embodiment of the trash can of this utility model in the open state;
[0023] Figure 3 This is a schematic diagram of the closed state of an embodiment of the trash can of this utility model;
[0024] Figure 4 This is a schematic diagram of the sealing ring of the trash can of this utility model being embedded in the annular sealing groove;
[0025] Figure 5 This is a schematic diagram illustrating the working principle of the alarm component in one embodiment of the trash can of this utility model;
[0026] Figure 6 yes Figure 5 Circuit diagram in area A;
[0027] Figure 7 This is a structural schematic diagram of the pressure relief component of this utility model. Detailed Implementation
[0028] Currently, even with the use of garbage bags, the sealing performance of garbage cans still needs improvement. This paper analyzes the reasons why the sealing performance of garbage cans still needs improvement, using the structure of one particular type of garbage can as an example. Figure 1 This is a structural diagram of a trash can.
[0029] refer to Figure 1 The trash can includes: a body 11, the top of which has an opening 13; and a lid 12, which covers the opening 13 of the body 11 when the trash can is closed.
[0030] Research has found that when a garbage bag 14 is placed inside the bin body 11, the opening of the garbage bag 14 can easily cover part of the outer wall of the bin body 11. When the garbage bin is closed, the garbage bag 14 blocks the upper edge of the bin body 11 and the lower edge of the lid 12, which can easily lead to poor sealing between the bin body 11 and the lid 12. Consequently, the garbage bin is not well sealed, and the lid 12 is less effective in preventing odors or harmful gases from escaping from the garbage bin.
[0031] To address the aforementioned technical problems, this utility model provides a trash can, comprising: a can body, the top of which has an opening, and a preset position on the outer side wall of the can body, wherein an annular end face is provided at the preset position, surrounding and protruding from the opening; a can lid, which, when closed, seals the opening, and the bottom of the can lid is in a sealing fit with the annular end face of the can body; and an alarm component, disposed on the can lid or the can body, the alarm component being used to issue an alarm when the air pressure inside the can body is greater than or equal to a first preset value.
[0032] The trash can provided in this embodiment includes a can body with an opening at the top, and a preset position is provided on the outer wall of the can body. An annular end face is provided at the preset position, which surrounds and protrudes from the opening. A can lid is provided. When the can lid is in the closed state, the can lid seals the opening, and the bottom of the can lid is sealed to the annular end face of the can body. An alarm component is provided on the can lid or on the can body. The alarm component is used to issue an alarm when the air pressure inside the can body is greater than or equal to a first preset value. Because the bin has an annular end face that surrounds and protrudes from the opening at a preset position, when the outer wall of the bin at the top of the annular end face supports the opening of a garbage bag turned outward from the opening, the outer side of the outer wall of the bin at the top of the annular end face has space to accommodate the opening of the garbage bag. This means that when a garbage bag is used inside the bin, the seal between the bottom of the lid and the annular end face of the bin is less affected by the garbage bag, resulting in a better seal and thus improving the overall airtightness of the bin. Furthermore, the alarm component can sound an alarm when the air pressure inside the bin is greater than or equal to a first preset value, allowing for timely disposal of garbage inside the bin, thereby reducing the probability of accidents and improving safety when using the garbage bin.
[0033] To make the above-mentioned objectives, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
[0034] Figure 2 This is a schematic diagram of the open state of an embodiment of the trash can of this utility model. Figure 3 This is a schematic diagram of the closed state of an embodiment of the trash can of this utility model. Figure 4 This is a schematic diagram of the sealing ring of the trash can of this utility model being embedded in the annular sealing groove. Figure 5 This is a structural diagram of the lid, alarm indicator, and pressure sensor switch of the trash can of this utility model. Figure 6 This is a schematic diagram illustrating the working principle of the power supply component, alarm indicator component, and pressure sensor switch of the trash can of this utility model. Figure 7 This is a structural schematic diagram of the pressure relief component of this utility model.
[0035] refer to Figures 2 to 7In this embodiment, the trash can 100 includes: a can body 110, the top of the can body 110 having an opening 113, and a preset position provided on the outer side wall of the can body 110, at the preset position having an annular end face 111 that surrounds and protrudes from the opening 113; a can lid 120, which, when the can lid 120 is in a closed state, seals the opening 113, and the bottom of the can lid 120 is in a sealing fit with the annular end face 111 of the can body 110; and an alarm component 130, which is disposed on the can lid 120 or on the can body 110, and the alarm component 130 is used to issue an alarm when the air pressure inside the can body 110 is greater than or equal to a first preset value.
[0036] It is understood that when the lid 120 is in the closed state, the bottom of the lid 120 is located on the annular end face 111 and is sealed to the annular end face 111; the annular end face 111 serves to support the lid 120 when the lid 120 is in the closed state.
[0037] As an example, the trash can 100 is a hazardous waste bin used to collect hazardous waste.
[0038] The bin body 110 is used to fit the garbage bag 200 and contain garbage. The opening 113 is used as a garbage disposal port; the outer wall of the bin body 110 located at the top of the annular end face 111 is used to support the bag opening portion of the garbage bag 200 that is turned outward from the garbage disposal port.
[0039] Because the bin body 110 has an annular end face 111 that surrounds and protrudes from the opening 113 at a preset position, when the outer wall of the bin body 110 at the top of the annular end face 111 supports the bag opening portion of the garbage bag 200 that is turned outward from the opening 113, the outer side of the outer wall of the bin body 110 at the top of the annular end face 111 has space to accommodate the bag opening portion of the turned-out garbage bag 200. As a result, after the garbage bag 200 is used to cover the garbage bin, the sealing performance between the bottom of the bin lid 120 and the annular end face 111 of the bin body 110 is not easily affected by the covered garbage bag 200. Consequently, the sealing performance between the bottom of the bin lid 120 and the annular end face 111 of the bin body 110 is better, which also helps to improve the sealing performance of the garbage bin. Furthermore, the alarm component 130 can issue an alarm when the air pressure inside the bin 110 is greater than or equal to a first preset value, so as to deal with the garbage inside the bin 110 in a timely manner, thereby reducing the probability of safety accidents and improving the safety of using the garbage bin.
[0040] It should be noted that, due to the good sealing performance of the trash can 100, when the trash can 100 is a hazardous waste bin, it helps to reduce the probability of gas leakage and smoke caused by chemical reactions in the hazardous waste inside the bin, thereby reducing the probability of pollution of the external environment of the hazardous waste bin due to gas leakage and smoke.
[0041] In this embodiment, the outer wall of the barrel 110 from the bottom to the preset position protrudes from the edge of the opening 113 to form an annular end face 111 that surrounds and protrudes from the edge of the opening 113 at the preset position.
[0042] In other embodiments, the outer wall of the barrel is flush with the edge of the opening, and an annular portion is fitted at a predetermined position on the outer wall of the barrel, so that an annular end face is provided at the predetermined position on the outer wall of the barrel, which surrounds and protrudes from the edge of the opening.
[0043] It should be noted that, as Figure 2 As shown, the height H1 of the outer wall of the bucket 110 at the top of the annular end face 111 should not be too small or too large. If the height H1 of the outer wall of the bucket 110 at the top of the annular end face 111 is too small, the space on the outer side of the outer wall of the bucket 110 at the top of the annular end face 111 for accommodating the opening of the overturned garbage bag 200 will be too small, resulting in poor effectiveness in accommodating the opening of the overturned garbage bag 200. If the height H1 of the outer wall of the bucket 110 at the top of the annular end face 111 is too large, the height of the bucket lid 120 will also be correspondingly too large, leading to unnecessary material waste. Therefore, in this embodiment, the height H1 of the outer wall of the bucket 110 at the top of the annular end face 111 is in the range of 4 cm to 5 cm.
[0044] As an example, the barrel body 110 is a circular barrel. Specifically, the annular end face 111 is annular; that is, the diameter of the opening 113 is smaller than the outer diameter of the annular end face 111.
[0045] In other embodiments, the barrel body may also be a barrel of other shapes, such as a square barrel.
[0046] In this embodiment, as Figure 2 and Figure 3 As shown, the barrel body 110 includes: an outer barrel 116, the top end face of the outer barrel 116 serving as the annular end face 111; and an inner barrel 115, which is embedded in the outer barrel 116 and protrudes from the top end face of the outer barrel 116.
[0047] The outer bucket 116 is used to provide space for setting the inner bucket 115.
[0048] The inner bucket 115 is used to fit the garbage bag 200.
[0049] The trash can 100 includes an inner tub 115 for housing the trash bag 200, allowing the inner tub 115 to be cleaned separately when cleaning the trash can 100, thereby further reducing labor intensity. Furthermore, the inner tub 115 is embedded in the outer tub 116, and the inner tub 115 has a top end face protruding from the outer tub 116, which helps reduce the difficulty of forming the annular end face 111.
[0050] Specifically, a gap exists between the outer wall of the inner bucket 115 and the inner wall of the outer bucket 116. This reduces the difficulty of fitting the inner bucket 115 into the outer bucket 116. Furthermore, it allows for a reduction in the wall thickness of the outer bucket 116 while increasing the space outside the outer wall of the inner bucket 115 protruding from the annular end face 111 to accommodate the opening of the outward-turned garbage bag 200, thus saving costs. In other embodiments, there may be no gap between the outer wall of the inner bucket and the inner wall of the outer bucket.
[0051] In other embodiments, the barrel body may not include an outer barrel and an inner barrel, that is, the barrel body is a one-piece structure.
[0052] As an example, both the inner tub 115 and the outer tub 116 are stainless steel tubs.
[0053] In this embodiment, the outer tub 116 has a groove 117 in the central region of its bottom; the bottom of the inner tub 115 is disposed in the groove 117, which helps to improve the stability of the inner tub 115 and prevent the inner tub 115 from shaking.
[0054] When the lid 120 is in the closed state, the lid 120 covers the opening 113 to seal the opening 113; when the lid 120 is in the open state, the lid 120 moves away from the opening 113 to expose the opening 113.
[0055] In this embodiment, the bucket lid 120 includes a first surface 121 and a second surface 122 disposed opposite to the first surface 121. When the bucket lid 120 is in the closed state, the first surface 121 faces the bucket body 110.
[0056] In this embodiment, the first surface 121 of the bucket lid 120 has a receiving cavity 123 (e.g., Figure 7 As shown), when the lid 120 is closed, the receiving cavity 123 is used to receive the opening 113 and the outer wall of the barrel body 110 above the annular end face 111.
[0057] The first surface 121 of the bucket lid 120 has a receiving cavity 123, which helps to reduce the difficulty of sealing the opening 113 of the bucket lid 120 and sealing the bottom of the bucket lid 120 with the annular end face 111 of the bucket body 110 when the bucket lid 120 is in the closed state.
[0058] In other embodiments, the first surface of the bucket lid is provided with an elastomer. When the bucket lid is in the closed state, the elastomer contracts towards the second surface of the bucket lid, so that the first surface of the bucket lid has space to accommodate the outer wall of the bucket body that is higher than the annular end face, thereby sealing the opening and the first surface of the bucket lid sealingly engaging with the annular end face of the bucket body. The elastomer can be a component made of polymer materials such as rubber or sponge.
[0059] In this embodiment, the bottom of the bucket lid 120 and the annular end face 111 are magnetically sealed, which helps to improve the sealing performance between the bottom of the bucket lid 120 and the annular end face 111 of the bucket body 110.
[0060] It is understood that one of the bottom of the bucket lid 120 and the annular end face 111 is a magnetic surface, and the other is a magnetized surface.
[0061] In this embodiment, as Figure 4 As shown, a sealing ring 118 is provided on one of the bottom edge of the bucket lid 120 and the annular end face 111, and an annular sealing groove 119 is provided on the other. When the bucket lid 120 is closed, the sealing ring 118 is embedded in the annular sealing groove 119, which helps to further improve the sealing between the bucket lid 120 and the annular end face 111 of the bucket body 110.
[0062] Specifically, the sealing ring 118 of a certain thickness is embedded in the annular sealing groove 119.
[0063] The barrel body 110 includes an outer barrel 116 and an inner barrel 115 embedded in the outer barrel 116. Correspondingly, a sealing ring 118 is provided on one of the bottom edge of the barrel lid 120 and the top end face of the outer barrel 116, and an annular sealing groove 119 is provided on the other.
[0064] In this embodiment, the lid 120 is hinged to the barrel body 110, which helps to reduce the complexity of opening and closing the lid 120.
[0065] In this embodiment, as Figure 4As shown, the trash can 100 also includes a fastener 140 for quick connection between the can body 110 and the can lid 120. The fastener 140 includes: a buckle 141, which is disposed on the side wall of the can lid 120 and near the bottom of the can lid 120, and a buckle seat 142, which is disposed on the side wall of the can body 110 and near the top of the can body 110.
[0066] The fastener 140 enhances the secure connection between the bin body 110 and the bin lid 120 when the lid 120 is closed, reducing the probability of the lid 120 being accidentally opened. For example, when the trash can 100 is a hazardous waste bin, it helps reduce the probability of the lid 120 being accidentally opened during the transfer of the waste bin, thereby reducing the probability of the external environment of the hazardous waste bin being polluted.
[0067] As an example, the fastener 140 is a hook and loop fastener, snap fastener, etc.
[0068] The alarm component 130 can issue an alarm when the air pressure inside the bin 110 is greater than or equal to a first preset value, so as to deal with the garbage inside the bin 110 in a timely manner, thereby reducing the probability of safety accidents and improving the safety of using the garbage bin 100.
[0069] In this embodiment, the alarm component 130 is disposed on the lid 120, which helps to reduce the difficulty of setting the alarm component 130 and also helps to reduce the probability of garbage in the bin 110 interfering with the alarm component 130.
[0070] In this embodiment, as Figures 5 to 7 As shown, the alarm component 130 includes a power supply component 131, an alarm indicator component 132, and a pressure sensing switch 133 connected in series in the same alarm circuit; wherein, the pressure sensing switch 133 is used to disconnect when the air pressure in the barrel 110 is less than a first preset value, and to close when the air pressure in the barrel 110 is greater than or equal to the first preset value, so as to conduct the alarm circuit and cause the alarm indicator component 132 to issue an alarm.
[0071] The alarm component 130 includes a power supply component 131, an alarm indicator component 132, and a pressure sensing switch 133 connected in series in the same alarm circuit, which makes the structure of the alarm component 130 simple and thus helps to save costs.
[0072] The power supply component 131 is used to provide power to the alarm circuit.
[0073] The alarm indicator component 132 is used to issue an alarm.
[0074] The pressure sensing switch 133 is used to disconnect when the air pressure inside the barrel 110 is less than a first preset value, and to close when the air pressure inside the barrel 110 is greater than or equal to the first preset value, so as to activate the alarm circuit.
[0075] It should be noted that the pressure sensing switch 133 is located in the central area of the first surface 121, which helps to reduce the difficulty of setting the pressure sensing switch 133.
[0076] In this embodiment, the pressure sensing switch 133 is disposed on the first surface 121 of the bucket lid 120; the pressure sensing switch 133 includes: a first stationary contact 1331 disposed on the first surface 121; a second stationary contact 1332 disposed on the first surface 121 and spaced apart from the first stationary contact 1331, both the first stationary contact 1331 and the second stationary contact 1332 having a first contact surface 1335 facing away from the first surface 121; and a moving contact assembly 1337 disposed on the first surface 121, the outer wall of the moving contact assembly 1337 and the first surface 121 forming a pressure sensing cavity, the projection pattern of the moving contact assembly 1337 on the first contact surface 1335 at least covering a portion of the first stationary contact 1331 and a portion of the second stationary contact 1332. 32. The moving contact assembly 1337 has a second contact surface 1336 disposed opposite to the first contact surface; wherein, in the state where the pressure sensing switch 133 is open, there is a gap between the second contact surface 1336 and the first contact surface 1335 of the first stationary contact 1331, and between the second contact surface 1336 and the first contact surface 1335 of the second stationary contact 1332; in the state where the pressure sensing switch 133 is closed, the second contact surface 1336 is in contact with the first contact surface 1335 of the first stationary contact 1331, and the second contact surface 1336 is in contact with the first contact surface 1335 of the second stationary contact 1332, so that the spaced-apart first stationary contact 1331 and second stationary contact 1332 are connected, thereby enabling the alarm circuit to be turned on.
[0077] The pressure sensor switch 133 is located on the first surface 121 of the lid 120, which helps to reduce the probability that the garbage bag 200 and the garbage in the bin 110 will interfere with the pressure sensor switch 133.
[0078] The pressure sensing switch 133 includes a first stationary contact 1331, a second stationary contact 1332, and a moving contact assembly 1337, which simplifies the structure of the pressure sensing switch 133 and reduces its structural complexity.
[0079] As an example, a pneumatic control component (not shown) is provided on the first surface 121 that forms the pressure sensing cavity.
[0080] The air pressure control component is used to connect the pressure sensing chamber to the external environment before the trash can is used, so as to adjust the initial air pressure value inside the pressure sensing chamber. The air pressure control component is also used to isolate the interior of the pressure sensing chamber from the external environment during the use of the trash can, to ensure the airtightness of the trash can during use. In some embodiments, the air pressure control component can also be used to keep the air pressure value inside the pressure sensing chamber consistent with the air pressure value of the external environment in real time. In still some embodiments, the pressure sensing switch may not have an air pressure control component.
[0081] In this embodiment, the moving contact assembly 1337 includes: a flexible pressure membrane 1333, suspended on the first contact surface 1335, the projection pattern of the flexible pressure membrane 1333 on the first contact surface 1335 covering at least a portion of the first stationary contact 1331 and a portion of the second stationary contact 1332; a moving contact 1334, disposed on the side of the flexible pressure membrane 1333 facing the first contact surface 1335, the moving contact 1334 having a second contact surface 1336 opposite to the first contact surface 1335, the projection pattern of the second contact surface 1336 of the moving contact 1334 on the first contact surface 1335 covering the first stationary contact 1331 and the second stationary contact 1332; and a fastener (not shown), fixedly disposed between the first surface 121 and the flexible pressure membrane 1333, and located at the edge of the flexible pressure membrane 1333. 。
[0082] The fastener, the flexible pressure diaphragm 1333, and the first surface together form a pressure sensing cavity. Figure 5 and Figure 6 The arrow in the figure indicates the deformation direction of the flexible pressure membrane 1333.
[0083] Understandably, when the air pressure inside the barrel 110 is greater than the air pressure inside the pressure sensing chamber, the flexible pressure diaphragm 1333 deforms toward one side of the first stationary contact 1331 and the second stationary contact 1332, so that the second contact surface 1336 of the moving contact 1334 moves toward the first contact surface 1335; when the air pressure inside the barrel 110 is greater than or equal to a first preset value, the second contact surface 1336 of the moving contact 1334 moves to a position where it is in contact with both the first contact surface 1335 of the first stationary contact 1331 and the first contact surface 1335 of the second stationary contact 1332, so that the second contact surface 1336 is in contact with both the first contact surface 1335 of the first stationary contact 1331 and the second contact surface 1336 of the second stationary contact 1332.
[0084] The moving contact assembly 1337 includes the flexible pressure diaphragm 1333, the moving contact 1334, and fasteners, which simplifies the structure of the moving contact assembly 1337 and reduces its structural complexity.
[0085] The flexible pressure diaphragm 1333 is used to drive the moving contact 1334 to move toward the first contact surface 1335.
[0086] Specifically, the projection pattern of the flexible pressure membrane 1333 on the first contact surface 1335 covers all of the first stationary contacts 1331 and all of the second stationary contacts 1332, thereby reducing the difficulty of the projection pattern of the second contact surface 1336 of the moving contact 1334 on the first contact surface 1335 covering the first stationary contacts 1331 and the second stationary contacts 1332. In other embodiments, the projection pattern of the flexible pressure membrane on the first contact surface may also cover part of the first stationary contacts and part of the second stationary contacts, or cover part of the first stationary contacts and all of the second stationary contacts, or cover all of the first stationary contacts and part of the second stationary contacts.
[0087] As an example, the flexible pressure membrane 1333 is circular or a regular polygon. As an example, the flexible pressure membrane 1333 is square.
[0088] As another example, the flexible pressure membrane 1333 includes a soluble polytetrafluoroethylene (PFA) flexible pressure membrane or a silicone polydimethylsiloxane (PDMS) flexible pressure membrane.
[0089] The moving contact 1334 is used to make the second contact surface 1336 and the first contact surface 1335 come into contact when the air pressure inside the barrel 110 is greater than or equal to the first preset value, so that the first stationary contact 1331 and the second stationary contact 1332, which are spaced apart, are connected, thereby making the alarm circuit conductive.
[0090] As an example, the projection pattern of the second contact surface 1336 of the moving contact 1334 onto the first contact surface 1335 covers part of the first stationary contact 1331 and part of the second stationary contact 1332, making the moving contact 1334 lighter, which helps to reduce the difficulty of the flexible pressure membrane 1333 deforming towards the first contact surface 1335.
[0091] It should be noted that the moving contact 1334 is an aluminum alloy moving contact.
[0092] Aluminum alloy has good electrical conductivity and is lightweight, which is beneficial for ensuring that the moving contact 1334 is in contact with the first stationary contact 1331 and the second stationary contact 1332 respectively when the air pressure inside the barrel 110 is greater than or equal to the first preset value.
[0093] In other embodiments, the moving contact may also be made of other suitable lightweight conductive materials.
[0094] The fastener is used to fix the flexible pressure membrane 1333 so that the flexible pressure membrane 1333 is suspended on the first contact surface 1335, and to form a pressure sensing cavity with the flexible pressure membrane and the first surface 121.
[0095] As an example, the fastener is used to ensure that the flexible pressure membrane 1333 is flatly suspended on the first contact surface 1335, that is, the surface of the flexible pressure membrane 1333 facing the first contact surface 1335 is parallel to the first contact surface 1335.
[0096] In other embodiments, the fastener, the flexible pressure membrane, and the first surface may not form a pressure-sensing cavity; that is, the outer wall of the moving contact assembly and the first surface may not form a pressure-sensing cavity. Accordingly, the fastener is only used to fix the flexible pressure membrane. Specifically, the fastener can be a four-corner knob. More specifically, when the flexible pressure membrane is square, the four-corner knob is located at the four corners of the square.
[0097] In this embodiment, as Figure 2 and Figure 7As shown, the depth H2 of the receiving cavity 123 is greater than the height H1 of the outer wall of the bin 110 at the top of the annular end face 111. This provides space for setting the first stationary contact 1331, the second stationary contact 1332, and the moving contact assembly 1337, reducing the difficulty of setting these components. Furthermore, the greater depth H2 of the receiving cavity 123 also facilitates better accommodation of the bag opening portion of the garbage bag 200.
[0098] It should be noted that when the air pressure inside the barrel 110 is the same as the air pressure of the external environment, the distance between the second contact surface 1336 and the first contact surface 1335 of the first stationary contact 1331, and the distance between the second contact surface 1336 and the first contact surface 1335 of the second stationary contact 1332 should not be too small or too large. If the distance between the second contact surface 1336 and the first contact surface 1335 of the first stationary contact 1331 is too small, and the distance between the second contact surface 1336 and the first contact surface 1335 of the second stationary contact 1332 is also too small, it is easy for the second contact surface 1336 to contact the first contact surface 1335 of the first stationary contact 1331 and the first contact surface 1335 of the second contact surface 1336 to contact the first contact surface 1332 when the air pressure in the barrel 110 is less than the first preset value, thereby causing the pressure sensing switch 133 to close; if the distance between the second contact surface 1336 and the first contact surface 1335 of the first stationary contact 1331 is too large, it is easy for the second contact surface 1336 to contact the first contact surface 1335 when the air pressure in the barrel 110 is greater than or equal to the first preset value, thereby causing the pressure sensing switch 133 to close. 336 and the first contact surface 1335 of the first stationary contact 1331 are not in contact; if the distance between the second contact surface 1336 and the first contact surface 1335 of the second stationary contact 1332 is too large, it is easy for the second contact surface 1336 and the first contact surface 1335 of the second stationary contact 1332 to not contact when the air pressure inside the barrel 110 is greater than or equal to the first preset value; therefore, in this embodiment, when the air pressure inside the barrel 110 is the same as the air pressure of the external environment, the distance between the second contact surface 1336 and the first contact surface 1335 of the first stationary contact 1331 is in the range of 1 mm to 3 mm; when the air pressure inside the barrel is the same as the air pressure of the external environment, the distance between the second contact surface 1336 and the first contact surface 1335 of the second stationary contact 1332 is in the range of 1 mm to 3 mm.
[0099] Specifically, when the air pressure inside the barrel 110 is the same as the air pressure of the external environment, that is, when the gas inside the barrel 110 does not cause deformation of the flexible pressure membrane 1333.
[0100] In this embodiment, the power supply component 131 is disposed in the bucket lid 120; the alarm indicator component 132 is disposed on the second side 122 of the bucket lid 120; and the pressure sensing switch 133 is disposed on the first side 121 of the bucket lid. This helps to reduce the difficulty of connecting the power supply component 131, the alarm indicator component 132, and the pressure sensing switch 133 in series in the same alarm circuit.
[0101] As an example, the power supply component 131 is disposed between the first surface 121 and the second surface 122, which helps to reduce the probability of the power supply component 131 being corroded by the gas inside the barrel 110. In other embodiments, the power supply component may also be disposed on the first surface of the barrel lid.
[0102] As another example, the power supply component 131 includes a dry cell battery.
[0103] The alarm indicator component 132 is disposed on the second side 122 of the lid 120, so that the alarm issued by the alarm indicator component 132 can be detected in time, thereby facilitating the timely disposal of garbage in the bin 110.
[0104] In this embodiment, the alarm indicator component 132 includes a sound generating element 1321 and a light display element 1322 connected in series. (e.g.) Figure 6 As shown in the diagram, this design allows for better timely detection of alarms issued by the alarm indicator component 132. In other embodiments, the alarm indicator component includes a sound generating element and a light display element connected in parallel. The parallel connection of the sound generating element and the light display element ensures that if one of them fails, the other can still function normally.
[0105] In this embodiment, as Figure 7 As shown, the trash can 100 also includes a pressure relief component 150, which is disposed in the lid 120. The pressure relief port 151 of the pressure relief component 150 is disposed on the side wall of the lid 120. The pressure relief component 150 is used to release the gas in the can body 110 when the gas pressure in the can body 110 is greater than or equal to a second preset value, which helps to reduce the probability of safety accidents such as explosion of the trash can 100 due to excessive gas pressure in the can body 110.
[0106] in, Figure 7 The blue arrows in the diagram indicate the direction of gas flow when the pressure relief assembly 150 releases gas.
[0107] It is understood that the second preset value is greater than the first preset value. That is, when the air pressure inside the barrel 110 is greater than or equal to the first preset value, the alarm component 130 issues an alarm. When the air pressure inside the barrel 110 is greater than or equal to the second preset value, the pressure relief component 150 automatically releases the gas inside the barrel 110.
[0108] The pressure relief port 151 of the pressure relief assembly 150 is located on the side wall of the lid 120, which helps to reduce the probability of injury to personnel handling the trash can 100 during gas release, thereby improving safety during the gas release process. In other embodiments, the pressure relief port of the pressure relief assembly is located on the second surface of the lid, or the pressure relief port of the pressure relief assembly is located on the side wall and the second surface of the lid.
[0109] As an example, the second preset value is the ambient air pressure plus 9550 Pascals. That is, when the air pressure inside the bin 110 increases by 9550 Pascals, the pressure relief component 150 starts to work to release the gas inside the bin 110. 9550 Pascals is less than one-tenth of a standard atmosphere, so when the pressure relief component 150 works at this time, it is unlikely to cause harm to people around the trash can.
[0110] Since PV = nRT, where P is the pressure, V is the volume of the barrel, n is the molecular weight of the gas in the barrel, R is the gas constant, and T is the absolute temperature, the pressure relief component 150 starts to work when the average temperature inside the barrel 110 rises to 50°C, or when 1.1n reactants are generated inside the barrel 110.
[0111] Specifically, the pressure relief assembly 150 includes: a main air duct 152, longitudinally disposed in the lid 120, the main air duct 152 having an air inlet end 1521 located on the first surface 121 of the lid 120, and a closed end 1522 disposed opposite to the air inlet end 1521; and a bypass air duct 153, transversely disposed in the lid 120 and communicating with the side wall of the main air duct 152. The outlet end of the air passage 153 serves as the pressure relief port 151; the valve core 154 is disposed in the main air passage 152. When the air pressure in the barrel 110 is greater than or equal to the second preset value, the valve core 154 moves to the closed end 1522 of the main air passage 152, so that the inlet end 1521 of the main air passage 152 is connected to the inlet end (not shown) of the bypass air passage 153, thereby opening the pressure relief port 151.
[0112] The main air guide channel 152 is arranged longitudinally in the barrel cover 120, and the bypass air guide channel 153 is arranged transversely in the barrel cover 120 and communicates with the side wall of the main air guide channel 152. This helps to reduce the difficulty of setting up the main air guide channel 152 and the bypass air guide channel 153, and also helps to reduce the difficulty of connecting the bypass air guide channel 153 and the main air guide channel 152.
[0113] The valve core 154 is disposed in the main air guide channel 152. When the air pressure in the barrel 110 is greater than or equal to the second preset value, the valve core 154 moves to the closed end 1522 of the main air guide channel 152, which makes it easier to connect the air inlet end 1521 of the main air guide channel 152 with the air inlet end of the bypass air guide channel 153.
[0114] In other embodiments, the outlet end of the bypass air channel is connected to the pressure relief port.
[0115] More specifically, the pressure relief assembly 150 further includes a manual pressure relief component 155, which is disposed in the main air guide channel 152. One end of the manual pressure relief component 155 is fixedly connected to the top of the valve core 154, and the other end is a free end. The manual pressure relief component 155 is used to pull the valve core 154 so that the valve core 154 moves to the closed end 1522 position of the main air guide channel 152.
[0116] The manual pressure relief component 155 facilitates the timely release of gas within the bin 110 when the gas pressure inside the bin 110 is lower than a second preset value, thereby further reducing the probability of safety accidents. For example, if the trash can 100 is a hazardous waste bin and the alarm component 130 sounds an alarm, the hazardous waste bin can be moved to a safe area, and the gas inside can be released manually, further reducing the probability of safety accidents.
[0117] As an example, the free end of the manual pressure relief component 155 protrudes from the top of the bucket lid 120, which helps to reduce the difficulty of pulling the valve core 154.
[0118] In this embodiment, the trash can 100 further includes: a foot pedal 161, disposed at the bottom of the can body 110, with one end of the foot pedal 161 protruding outside the can body 110; a linkage mechanism 162, disposed at the bottom and outer wall of the can body 110, with one end of the linkage mechanism 162 hinged to the foot pedal 161 and the other end hinged to the can lid 120; and a handle 163, disposed on the side wall of the can lid 120, with the handle 163 and the linkage mechanism 162 on the outer wall of the can body 110 located on the same straight line.
[0119] The foot pedal 161 and linkage mechanism 162 help reduce the labor intensity of opening the bucket lid 120.
[0120] The handle 163 and the linkage mechanism 162 on the outer wall of the bin 110 are on the same straight line, which helps to reduce the probability of accidentally opening the trash can 100 when pulling the trash can 100 by the handle 163, thereby further reducing the probability of odors or harmful gases escaping from the bin 110.
[0121] Specifically, the linkage mechanism 162 is disposed at the bottom of the inner barrel 115 and on the outer side wall of the outer barrel 116.
[0122] In this embodiment, the trash can 100 further includes a plurality of casters 164 with brakes, located at the bottom of the can body 110. The casters 164 with brakes help reduce the difficulty of moving and fixing the trash can 100.
[0123] As an example, the number of the omnidirectional wheels 164 with brakes is three.
[0124] While the present invention has been disclosed above, it is not limited thereto. Any person skilled in the art can make various modifications and alterations without departing from the spirit and scope of the present invention; therefore, the scope of protection of the present invention should be determined by the scope defined in the claims.
Claims
1. A trash receptacle, comprising: The application relates to a bucket, which comprises: a bucket body, the top end of the bucket body being provided with an opening, and a preset position being arranged on the outer side wall of the bucket body, wherein an annular end face surrounding and protruding from the opening is arranged at the preset position; a bucket cover, the bucket cover being sealed with the opening when the bucket cover is in a closed state, and the bottom of the bucket cover being sealed with the annular end face of the bucket body; an alarm assembly arranged on the bucket cover or the bucket body, the alarm assembly being used for issuing an alarm when the air pressure in the bucket body is greater than or equal to a first preset value.
2. The trash receptacle of claim 1, wherein, The bottom of the bucket cover and the annular end face are magnetically sealed.
3. The trash receptacle of claim 1, wherein, An edge of the bottom of the bucket cover and one of the annular end face are provided with a sealing ring, and the other one is provided with an annular sealing groove, the sealing ring being embedded in the annular sealing groove when the bucket cover is closed.
4. The trash receptacle of claim 1, wherein, The alarm assembly comprises a power component, an alarm indicating component and a pressure sensing switch connected in series in the same alarm loop; the pressure sensing switch is used for being disconnected when the air pressure in the bucket body is less than the first preset value, and being closed when the air pressure in the bucket body is greater than or equal to the first preset value, so that the alarm loop is conducted.
5. The trash receptacle of claim 4, wherein, The bucket cover comprises a first surface and a second surface arranged opposite to the first surface, the first surface being directed to the bucket body when the bucket cover is in a closed state; the alarm assembly is arranged on the bucket cover; The pressure sensing switch is arranged on the first surface of the bucket cover; The pressure sensing switch comprises: a first static contact point arranged on the first surface; a second static contact point arranged on the first surface and spaced apart from the first static contact point, the first static contact point and the second static contact point both having a first contact surface directed away from the first surface; a moving contact point assembly arranged on the first surface, the outer wall of the moving contact point assembly and the first surface forming a pressure sensing cavity, the projection of the moving contact point assembly on the first contact surface covering part of the first static contact point and part of the second static contact point, the moving contact point assembly having a second contact surface arranged opposite to the first contact surface; wherein, in the disconnected state of the pressure sensing switch, the second contact surface and the first contact surface of the first static contact point, and the second contact surface and the first contact surface of the second static contact point all have a spacing; in the closed state of the pressure sensing switch, the second contact surface and the first contact surface of the first static contact point, and the second contact surface and the first contact surface of the second static contact point are all in contact.
6. The trash receptacle of claim 5, wherein, The moving contact point assembly comprises: a flexible pressure film suspended on the first contact surface, the projection of the flexible pressure film on the first contact surface covering part of the first static contact point and part of the second static contact point; a moving contact point arranged on the surface of the flexible pressure film directed to the first contact surface, the moving contact point having a second contact surface arranged opposite to the first contact surface, the projection of the second contact surface of the moving contact point on the first contact surface covering the first static contact point and the second static contact point. a fastener fixedly disposed between the first face and the flexible pressure membrane at a location at an edge of the flexible pressure membrane 。 7. The trash receptacle of claim 5, wherein, The distance between the second contact surface and the first contact surface of the first static contact point is 1-3 mm when the air pressure in the barrel body is consistent with the air pressure of the external environment; The distance between the second contact surface and the first contact surface of the second static contact point is 1-3 mm when the air pressure in the barrel body is consistent with the air pressure of the external environment.
8. The trash receptacle of any one of claims 4-7, wherein, The barrel cover comprises a first surface and a second surface opposite to the first surface, and the first surface faces the barrel body when the barrel cover is in a closed state; the alarm assembly is arranged on the barrel cover; wherein, The power supply component is arranged in the barrel cover; The alarm indication component is arranged on the second surface of the barrel cover; The pressure sensing switch is arranged on the first surface of the barrel cover.
9. The trash receptacle of claim 4, wherein, The alarm indication component comprises a sound generating element and a light display element connected in series or in parallel.
10. The trash receptacle of claim 1, wherein, The garbage can further comprises a buckle for achieving quick connection between the barrel body and the barrel cover, the buckle comprises a buckle seat arranged on the side wall of the barrel cover and close to one side of the bottom of the barrel cover, and a buckle head arranged on the side wall of the barrel body and close to one side of the top end of the barrel body.
11. The trash receptacle of claim 1, wherein, The barrel cover comprises a first surface and a second surface opposite to the first surface, and the first surface faces the barrel body when the barrel cover is in a closed state; the garbage can further comprises a pressure relief assembly arranged in the barrel cover, and a pressure relief opening of the pressure relief assembly is arranged on the side wall of the barrel cover, or the pressure relief opening of the pressure relief assembly is arranged on the second surface of the barrel cover, or the pressure relief opening of the pressure relief assembly is arranged on the side wall and the second surface of the barrel cover, and the pressure relief assembly is used to release the gas in the barrel body when the air pressure in the barrel body is greater than or equal to a second preset value.
12. The trash receptacle of claim 11, wherein, The pressure relief assembly comprises: A main path air guide channel is arranged in the barrel cover in a longitudinal direction, and the main path air guide channel has an air inlet end located on the first surface of the barrel cover and a closed end opposite to the air inlet end; A bypass air guide channel is arranged in the barrel cover in a transverse direction and communicates with the side wall of the main path air guide channel, and an air outlet end of the bypass air guide channel communicates with the pressure relief opening, or the air outlet end of the bypass air guide channel serves as the pressure relief opening; A valve core is arranged in the main path air guide channel, and when the air pressure in the barrel body is greater than or equal to the second preset value, the valve core moves to the closed end position of the main path air guide channel, so that the air inlet end of the main path air guide channel communicates with the air inlet end of the bypass air guide channel.
13. The trash receptacle of claim 12, wherein, The pressure relief assembly further comprises a manual pressure relief component arranged in the main path air guide channel, one end of the manual pressure relief component is fixedly connected with the top of the valve core, and the other end is a free end, and the manual pressure relief component is used to pull the valve core to move the valve core to the closed end position of the main path air guide channel.
14. The trash receptacle of claim 1, wherein, The barrel cover is hinged to the barrel body; the garbage can further comprises: A foot pedal is arranged on the bottom of the barrel body, and one end of the foot pedal is exposed outside the barrel body; A connecting rod mechanism is arranged on the bottom and the outer side wall of the barrel body, one end of the connecting rod mechanism is hingedly connected with the foot pedal, and the other end is hingedly connected with the barrel cover. A handle is arranged on the side wall of the barrel cover, and the handle is located on the same straight line with the connecting rod mechanism on the outer side wall of the barrel body.