Underground garbage can capable of preventing water from infiltrating

Abstract

The utility model relates to the technical field of underground garbage cans, in particular to an underground garbage can capable of preventing water from infiltrating, which comprises an outer can body, an inner can body and a lifting mechanism. According to the utility model, the structure is reasonable, the outer box body is obliquely arranged at the outer box opening in the shape of high inside and low outside, so that the outer box opening can be inclined with a certain angle relative to the ground, and the frustum-shaped flow guide ring plate which is propped against the upper side of the outer box opening and is low in edge and high in middle can enable the upper end of the inner box body to be inclined with a certain angle relative to the outer box opening; a certain potential energy difference is generated between the upper end face of the inner box body and the ground and between the upper end face of the outer box body and the ground, rainwater, greening water and other water are guided to flow in an accelerated mode, and therefore water falling onto the upper cover plate can rapidly flow to the outer box opening through the flow guide ring plate and then rapidly flow to the ground through the inclined outer box opening with the inner portion higher than the outer portion. The accumulation of water on the outer box opening and the flow guide ring plate is greatly reduced, and the problem that the water immerses into the garbage can through the abutting position of the outer box opening and the flow guide ring plate to form accumulated water is effectively solved.

Description

Technical Field

[0001] The utility model relates to the technical field of underground garbage bins, in particular to an underground garbage bin capable of resisting infiltration by waterproof liquid. Background Art

[0002] An underground trash bin is an environmentally friendly device for collecting garbage in a hidden manner. It is buried underground to reduce the pollution to the environment caused by open-air garbage dumping. An underground trash bin is an efficient garbage disposal device with significant environmental advantages. It is of great significance to improving the quality of the urban environment and promoting garbage classification.

[0003] Currently, existing underground trash bins on the market have an outer box with an upward opening, the upper end of the outer box opening parallel to the ground, an inner box mounted within the outer box, the top surface of the inner box not lower than the top surface of the outer box, and an upper cover plate at the top of the inner box, which is arranged parallel to the outer box opening and mounted on the outer box opening so that the lower end of the upper cover plate contacts the outer box opening. When rainwater or landscaping water splashes onto the junction of the upper cover plate and the outer box opening, the water will seep into the trash bin, forming water accumulation. Although the edges of the upper cover plates of some underground trash bins are tilted toward the ground, when rainwater or landscaping water splashes onto the edges of the upper cover plates, the rainwater will flow away faster, but because the outer box opening is parallel to the ground, some water will still seep into the trash bin, forming water accumulation, corroding the trash bin and breeding bacteria and mosquitoes.

[0004] The Chinese patent document with publication number CN109703938A discloses a two-way fixed underground garbage bin, which includes a connector, a central guide column, a guide sleeve, a front lifting seat body, a garbage bin body, a lifting drive device and a basic box with an upward opening. The connector is provided on the inner side of the upper part of the basic box, and at least two central guide columns are spaced apart in the left and right directions between the inner side of the bottom of the basic box and the connector. The two ends of each central guide column are respectively fixed to the corresponding positions of the connector and the basic box. The outer side of each central guide column is provided with a guide sleeve that can slide up and down relative to it. The front side of the connector is provided with a front lifting seat body, the bottom rear side of the front lifting seat body is fixed to the front side of each guide sleeve, the top of the front lifting seat body is provided with a garbage delivery port, the outer side of the front lifting seat body is provided with a box body inlet and outlet, and the front lifting seat body is provided with a garbage bin body with an upward opening, and the upper opening of the garbage bin body corresponds to the position of the garbage delivery port; the lifting drive device is fixed to the inner side of the bottom of the basic box, and the top end of the lifting drive device is connected to the front lifting seat body. However, the upper end of the base box is parallel to the ground, and the upper ends of the front and rear lifting seat bodies are parallel to the upper end of the base box. Rainwater or greening water can easily seep into the trash can from the joints between the two, forming water accumulation.

[0005] The Chinese patent document with the announcement number CN208412876U discloses a double-door lifting type buried garbage bin, which is characterized in that it includes an outer box body, an inner box body and a left double-door lifting mechanism, the opening of the outer box body is upward, the inner box body is set in the outer box body, and the top surface of the inner box body is not lower than the top surface of the outer box body, a left double-door lifting mechanism is provided between the outer box body and the inner box body, and the top surface of the left double-door lifting mechanism is not higher than the top surface of the outer box body; the left double-door lifting mechanism includes a fixed door frame, a lifting frame, a lifting frame, an oil cylinder, a movable body, a fixed frame plate, a movable pulley and a flexible connector, the fixed door frame is fixedly installed on the inner left side of the outer box body, and the top surface of the fixed door frame is not higher than the top surface of the outer box body, the fixed door frame is fixedly installed on the inner left side of the outer box body, and the top surface of the fixed door frame is not higher than the top surface of the outer box body, the fixed door frame is fixedly installed on the inner left side of the outer box body, and the top surface of the fixed door frame is not higher than the top surface of the outer box body. A fixed frame plate is fixed to the upper left side of the fixed gantry. A lifting frame is mounted on the fixed gantry, which can slide up and down along the fixed gantry and can be raised to the top of the fixed gantry. A lifting frame is mounted on the lower right side of the lifting frame, which can slide up and down along the fixed gantry. The lifting frame is fixed to the left portion of the inner box. A cylinder is installed at the bottom of the fixed gantry. A piston rod that can extend upward is installed in the cylinder. A movable body located above the cylinder is fixed to the top of the piston rod. The movable body is fixed to the lifting frame. At least one movable pulley is installed on the movable body. Each movable pulley is mounted on a flexible connector that cooperates with it. The left end of the flexible connector is fixed to a corresponding position on the fixed frame plate, and the right end of the flexible connector is fixed to a corresponding position on the lifting frame. Although the outer edge ring plate is located above the outer box body and is inclined toward the ground, the main function of the outer edge ring plate is to block the gap between the foundation pit and the outer box body to prevent foreign objects from falling in, and is not used to prevent water from seeping into the garbage bin. In addition, the outer box opening at the upper end of the outer box body is parallel to the ground, and some water will still seep into the trash can, forming stagnant water, corroding the trash can, and breeding bacteria and mosquitoes.

[0006] Therefore, the existing underground trash can has the following shortcomings in actual use: the outer box opening is parallel to the ground, and water such as rainwater or greening water can easily seep into the trash can from the joint between the outer box and the upper cover, forming water accumulation, corroding the trash can, and breeding bacteria and mosquitoes. Summary of the Invention

[0007] The utility model provides an underground garbage bin that is resistant to water infiltration, overcoming the above-mentioned shortcomings of the prior art. The utility model can effectively solve the problem that the outer box opening of the existing underground garbage bin is parallel to the ground, and rainwater or water for landscaping can easily penetrate into the garbage bin through the joint between the outer box and the upper cover, forming water accumulation, corroding the garbage bin, and breeding bacteria and mosquitoes.

[0008] The technical solution of the present utility model is achieved through the following measures: an underground garbage bin that can prevent water from infiltration, comprising an outer box body, an inner box body and a lifting mechanism, the opening of the outer box body faces upward, the inner box body is installed in the outer box body, and the top surface of the inner box body is not lower than the top surface of the outer box body, and the front side of the inner box body is provided with a box body inlet and outlet; a lifting mechanism is provided between the outer box body and the inner box body, and under the action of the lifting mechanism, the inner box body can move up and down relative to the outer box body; the outer box opening at the upper end of the outer box body is tilted with the inside higher and the outside lower, and a guide ring plate is provided along the circumferential edge of the top surface of the inner box body, and the lower side of the guide ring plate away from the inner box body is just against the upper side of the outer box opening.

[0009] The following are further optimizations and / or improvements to the above-mentioned utility model technical solution:

[0010] The above-mentioned outer box body may include a support frame, an outer skin and an annular top frame. The upper end of the support frame is provided with an annular top frame with an upper side surface that is higher inside and lower outside. The outer skin is fixedly installed on the outside of the support frame, and the top end of the outer skin is lower than the top end of the annular top frame.

[0011] The above-mentioned guide ring plate may include a front baffle, a rear baffle, a left baffle and a right baffle. The lower side of the rear portion of the front baffle is fixedly installed together with the upper side of the front of the inner box body, the lower side of the front portion of the rear baffle is fixedly installed together with the upper side of the rear of the inner box body, the lower side of the right portion of the left baffle is fixedly installed together with the upper side of the left portion of the inner box body, and the lower side of the left portion of the right baffle is fixedly installed together with the upper side of the right side of the inner box body; the front of the front baffle, the rear of the rear baffle, the left portion of the left baffle and the right portion of the right baffle are all bent downward to form oblique edges, and the lower side of each oblique edge is respectively against the corresponding position of the upper side of the outer box body; the left ends of the front baffle and the right baffle are respectively fixedly installed together with the corresponding positions of the front end and rear end of the left baffle, and the right ends of the front baffle and the right baffle are respectively fixedly installed together with the corresponding positions of the front end and rear end of the right baffle.

[0012] The above-mentioned annular top frame may include a front crossbeam, a rear crossbeam, a left crossbeam and a right crossbeam. The lower side of the front crossbeam is fixedly installed with the upper front side of the support frame, and the rear crossbeam is fixedly installed with the upper rear side of the support frame corresponding to the position of the front crossbeam; the left crossbeam is fixedly installed between the left end of the front crossbeam and the left end of the rear crossbeam, the lower side of the left crossbeam is fixedly installed with the upper left side of the support frame, and the right crossbeam is fixedly installed with the upper right side of the support frame corresponding to the position of the left crossbeam, and the front and rear ends of the right crossbeam are respectively fixedly installed with the rear side of the right end of the front crossbeam and the front side of the right end of the rear crossbeam; the heights of the front crossbeam, the rear crossbeam, the left crossbeam and the right crossbeam close to the inner box body are all higher than their heights close to the outer skin.

[0013] The above-mentioned lifting mechanism may include a front guide part, a rear guide part, a lifting fixing seat and a lifting drive device. The front guide part and the rear guide part are provided at intervals on the front and rear sides of the inner side of the bottom of the outer box body. The front guide part and the rear guide part are respectively connected to the corresponding positions on the outer side of the inner box body, and the top ends of the front guide part and the rear guide part are both higher than the top end of the inner box body; a lifting fixing seat is provided between the upper part of the front guide part and the upper part of the rear guide part, and a lifting drive device is provided between the middle part of the lifting fixing seat and the corresponding position on the inner side of the bottom of the outer box body.

[0014] The above-mentioned front guide part may include a front column, a front guide wheel and a front guide rail. The lower end of the front column is fixedly installed at a corresponding position on the inner side of the bottom of the outer box body. Two front guide wheels are installed on the upper rear side of the front column for rotation at intervals. A front guide rail is provided on the inner box body corresponding to the position of the front guide wheel, and the top end of the front guide rail is higher than the top end of the front column. Both front guide wheels can roll on the front guide rail. The structure of the rear guide part is the same as that of the front guide part and is symmetrically distributed front to back.

[0015] The above-mentioned lifting drive device may include a driving part and a linear actuator. The linear actuator is fixedly installed between the middle of the lifting fixed seat and the corresponding position on the inner side of the bottom of the outer box body. A driving part is provided above the lifting fixed seat. The driving part can drive the linear actuator to move so that the inner box body can move up and down relative to the outer box body.

[0016] A front support portion may be provided between the front upper portion front side of the front guide portion and the inner side of the front portion of the outer box body, and a rear support portion may be provided between the rear side of the rear guide portion corresponding to the position of the front support portion and the inner side of the rear portion of the outer box body.

[0017] A reinforcement support portion may be provided between the upper end of the front guide portion and the upper end of the rear guide portion.

[0018] A protective cover may be provided on the outer sides of the upper portions of the front guide portion and the rear guide portion, and the lower ends of the protective covers are connected to corresponding positions on the upper side of the inner box body.

[0019] The above-mentioned inner box body may include a left box body and a right box body, and the left side of the middle and lower parts of the front guide part and the rear guide part are fixedly connected to the corresponding positions on the right side of the left box body, and the right side of the middle and lower parts of the front guide part and the rear guide part are fixedly connected to the corresponding positions on the left side of the right box body.

[0020] An upper cover plate can be fixedly mounted on the top surface of the inner box body, and the outer peripheral side of the upper cover plate is fixedly mounted together with the inner side surface of the guide ring plate; at least one garbage placement port is provided on the upper cover plate.

[0021] The above-mentioned garbage delivery port can be equipped with a flap.

[0022] A limiting block may be provided on the inner side of the upper end of the outer box body.

[0023] At least one trash bin body with an upward opening may be provided in the inner box.

[0024] The utility model has a reasonable structure and ingenious conception. The outer box body is tilted in a shape of high inside and low outside at the outer box opening, so that the outer box opening can be tilted at a certain angle to the ground. The frustum-shaped guide ring plate with low edges and high middles abutting the upper side of the outer box opening can tilt the upper end of the inner box body and the outer box opening at a certain angle, thereby generating a certain potential energy difference between the upper end surface of the inner box body and the upper end surface of the outer box body and the ground, guiding rainwater, greening water and other water to flow faster, so that the water falling on the upper cover can quickly flow to the outer box opening through the guide ring plate, and then quickly flow to the ground through the outer box opening with high inside and low outside, greatly reducing the accumulation of water on the outer box opening and the guide ring plate, and effectively solving the problem of water seeping into the garbage bin through the abutment between the outer box opening and the guide ring plate to form accumulated water, thereby avoiding the accumulated water corroding the garbage bin and breeding bacteria and mosquitoes. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Attachment Figure 1 It is a schematic diagram of the left side sectional structure of Example 1-15 of the present utility model.

[0026] Attachment Figure 2 For attachment Figure 1 Schematic diagram of the structure enlarged at point A in the middle.

[0027] Attachment Figure 3 This is a schematic diagram of the main structure of the inner box in the raised state in Example 1-15 of the present invention.

[0028] Attachment Figure 4 For attachment Figure 3 Schematic diagram of the three-dimensional structure.

[0029] Attachment Figure 5 For attachment Figure 4 Schematic diagram of the structure enlarged at point B.

[0030] Attachment Figure 6 For attachment Figure 1 、 3 ,4 Schematic diagram of the three-dimensional structure of the inner and outer boxes.

[0031] The codes in the accompanying drawings are: 1 for the box inlet and outlet, 2 for the support frame, 3 for the outer skin, 4 for the front baffle, 5 for the rear baffle, 6 for the left baffle, 7 for the right baffle, 8 for the bevel, 9 for the front beam, 10 for the rear beam, 11 for the left beam, 12 for the right beam, 13 for the lifting fixed seat, 14 for the front column, 15 for the front guide wheel, 16 for the front guide rail, 17 for the drive unit, 18 for the linear actuator, 19 for the front support part, 20 for the rear support part, 21 for the reinforcement support part, 22 for the protective cover, 23 for the left box body, 24 for the right box body, 25 for the upper cover, 26 for the garbage delivery port, 27 for the flip cover, 28 for the limit card block, 29 for the garbage box body, 30 for the rear column, 31 for the rear guide wheel, 32 for the rear guide rail, 33 for the connecting beam, 34 for the foot-operated opening mechanism, 35 for the delivery ring, and 36 for the triangular notch. DETAILED DESCRIPTION

[0032] The present invention is not limited by the following embodiments, and specific implementation methods can be determined based on the technical solution of the present invention and actual conditions.

[0033] In this utility model, for the convenience of description, the relative position relationship of each component is described based on the Figure 1 For example, the positional relationships of front, back, up, down, left, and right are determined according to the layout directions of the drawings in the specification.

[0034] The present invention will be further described below in conjunction with the embodiments and accompanying drawings:

[0035] Example 1: As shown in the attached Figures 1 to 6 As shown, the underground garbage bin that can prevent water from infiltration includes an outer box body, an inner box body and a lifting mechanism. The opening of the outer box body is upward, the inner box body is installed in the outer box body, and the top surface of the inner box body is not lower than the top surface of the outer box body. The front side of the inner box body is provided with a box body inlet and outlet 1; a lifting mechanism is provided between the outer box body and the inner box body, and under the action of the lifting mechanism, the inner box body can move up and down relative to the outer box body; the outer box opening at the upper end of the outer box body is inclined with the inside higher and the outside lower, and a guide ring plate is provided along the circumferential edge of the top surface of the inner box body, and the lower side of the guide ring plate away from the inner box body is just against the upper side of the outer box opening.

[0036] In the above technical solution, two or three upward-opening trash bin bodies 29 can be installed at intervals along the left and right sides of the inner box body to facilitate user waste sorting and placement. The trash bin bodies 29 can be constructed using existing technology in the field. To prevent rainwater, landscaping water, and other liquids from entering the inner box body, an integrated trash drop box can be fixedly mounted on the upper side of the guide ring plate near one side of the inner box body. Each integrated trash drop box corresponding to the position of the trash bin body 29 is equipped with a trash drop window that communicates with the inner cavity of the trash bin body 29. Each trash drop window is equipped with a shielding cover. The integrated trash drop box is existing technology in the field. In addition, a cover plate can also be fixedly installed on the inner side of the guide ring plate. A garbage delivery port 26 extending vertically is provided on the cover plate corresponding to the position of each garbage bin body 29. A garbage delivery box can be installed on the cover plate corresponding to each garbage delivery port. The garbage delivery box is provided with a garbage delivery window that can be connected to the corresponding garbage delivery port, and a shielding cover is provided at the garbage delivery window. This allows the garbage delivery box to block the garbage delivery port 26, and also facilitates the user to drop garbage into the garbage bin body 29 through the garbage delivery window after opening the shielding cover. According to needs, the garbage delivery box can adopt existing technology in this field. In this technical solution, the "inner high and outer low" refers to the side close to the inner box body, and the "outer" refers to the side close to the outer box body.

[0037] During use, the utility model is placed in a well-dug foundation pit, and the top of the outer box body is raised to a certain distance above the ground. The garbage bin body 29 in the prior art is placed in the inner box body to complete the installation.

[0038] In normal use, such as Figure 1 As shown, the lifting mechanism is in its initial state, with the guide ring plate on the side away from the inner box body fitting over the upper end surface of the outer box body. The trash bin body and the vast majority of the inner box body (the inner box body below the outer box opening) are sunken below the ground. Users drop their trash into the corresponding trash bin body 29 through the trash drop window on the trash drop box. When rainwater or landscaping water falls onto the guide plate, it flows along the guide plate to the outer box opening at the upper end of the outer box body and quickly flows to the ground along the outer box opening, which is tilted higher inside and lower outside. This prevents rainwater, landscaping water, and other liquids from accumulating between the guide ring plate and the outer box opening and then seeping into the trash bin. This effectively reduces the probability of water seeping from the top surface of the outer box body into the outer box body, forming accumulated water.

[0039] When the trash bin body 29 is periodically replaced or removed, the lifting mechanism is activated, moving the inner bin upward and lifting it from the outer bin to the ground. The trash bin body 29 can then be removed or replaced from the inner bin through the bin access 1. The trash in the trash bin body 29 can be transferred to a garbage truck. The empty trash bin body 29 can then be returned to its original position in the inner bin through the bin access 1. The lifting mechanism is then activated again, moving the inner bin downward and returning it to its original position.

[0040] According to the requirements, the guide ring plate can be an annular plate parallel to the ground and with an outer shape that matches the outer shape of the inner box, or it can be an annular cone plate in the shape of a cone, and the middle high edge of the annular cone plate is at a low position, that is, the annular cone plate is tilted toward the ground at one end away from the inner box, which can form a potential energy difference, accelerate the flow of water, and prevent water accumulation. The lifting mechanism can adopt the existing technology in this field such as the hydraulic cylinder lifting mechanism, the gear rack lifting mechanism, the fork lifting mechanism, the screw lifting mechanism, the wire winch lifting mechanism, the cable lifting mechanism composed of a wire rope pulley, the chain lifting mechanism, the wire rope traction lifting mechanism or the telescopic guide rail lifting mechanism. The fixed installation in this technical solution can adopt a detachable fixed installation, such as a fixed connection with threaded fasteners, etc., or a non-detachable fixed installation, such as welding, riveting, etc.

[0041] The utility model has a reasonable structure and ingenious design. The outer box body is tilted at the outer box opening with the inner side higher and the outer side lower, so that the outer box opening is tilted at a certain angle to the ground, so that a potential energy difference is generated between the side of the outer box opening close to the inner box body and the side close to the ground, thereby guiding rainwater, greening water and other water to slide rapidly from the upper side of the outer box opening to the ground, avoiding water accumulation at the outer box opening, and effectively solving the problem of water seeping into the garbage bin through the junction of the outer box opening and the guide ring plate to form accumulated water, thereby avoiding the accumulated water corroding the garbage bin and breeding bacteria and mosquitoes.

[0042] The above-mentioned underground garbage bin capable of resisting infiltration of waterproof liquid may be further optimized and / or improved according to actual needs:

[0043] Example 2: As an optimization of the above embodiment, as shown in the attached Figures 1 to 5 As shown in Figures 6, the outer box body includes a support frame 2, an outer skin 3 and an annular top frame. The upper end of the support frame 2 is provided with an annular top frame with an upper side surface that is higher inside and lower outside. The outer side of the support frame 2 is fixedly installed with the outer side of the outer skin 3, and the top end of the outer skin 3 is lower than the top end of the annular top frame.

[0044] In this technical solution, the annular top frame can form an outer box opening with an inner high and an outer low tilted shape, such as Figure 6 As shown. The annular top frame can be processed using rectangular tubes or square tubes in the existing known technology to reduce the processing difficulty and improve the blanking speed. The annular top frame may include a front rectangular tube, a rear rectangular tube, a left rectangular tube and a right rectangular tube. After the front rectangular tube, the rear rectangular tube, the left rectangular tube and the right rectangular tube are respectively installed at corresponding positions on the upper side of the support frame 2, the front rectangular tube, the rear rectangular tube, the left rectangular tube and the right rectangular tube can be made higher on the side close to the inner box body than on the side close to the skin, so that the upper side of the annular top frame can be tilted in a shape of high inside and low outside (i.e., high in the middle and low at the edges), and then the outer box opening can be tilted in a shape of high inside and low outside, thereby forming a certain potential energy difference at the outer box opening at the upper end of the outer box body, which is more conducive to the accelerated sliding of rainwater or water for landscaping falling on the annular top frame toward the ground, effectively reducing the infiltration of water into the outer box body from the upper side of the annular top frame.

[0045] In order to facilitate the inclined installation of the front rectangular tube, rear rectangular tube, left rectangular tube and right rectangular tube and improve the installation accuracy, the upper end of the support frame 2 can be tilted to be higher inside and lower outside, even if the height of the upper end of the support frame 2 close to the inner box body is greater than the height close to the outer skin 3.

[0046] In order to make the connection between the front rectangular tube, the rear rectangular tube, the left rectangular tube and the right rectangular tube smoothly transition, the upper rear position of the left end of the front rectangular tube and the upper front position of the left end of the rear rectangular tube can be provided with a triangular notch 36 that is through-through inside and outside and is larger on the left and smaller on the right, and the upper side surface of the left end of the front rectangular tube and the upper side surface of the left end of the rear rectangular tube can be bent toward the upper side surface of the left rectangular tube along the triangular notch 36; the upper rear position of the right end of the front rectangular tube and the upper front position of the right end of the rear rectangular tube can also be provided with a triangular notch 36 that is through-through inside and outside and is larger on the right and smaller on the left, and the upper side surface of the right end of the front rectangular tube and the upper side surface of the right end of the rear rectangular tube can be bent toward the upper side surface of the right crossbeam 12, as shown in FIG. Figure 5 As shown; after the front rectangular tube, rear rectangular tube, left rectangular tube and right rectangular tube are welded together, the upper side surface of the front end of the left rectangular tube and the upper side surface of the left end of the front rectangular tube, the upper side surface of the rear end of the left rectangular tube and the upper side surface of the left end of the rear rectangular tube, the upper side surface of the front end of the right rectangular tube and the upper side surface of the right end of the front rectangular tube, and the upper side surface of the rear end of the right rectangular tube and the upper side surface of the right end of the rear rectangular tube can all be smoothly transitioned, ensuring that the upper side surface of the annular top frame is complete and has no gaps, thereby preventing water from seeping into the annular top frame through the gaps.

[0047] In order to prevent rainwater, greening water and other liquids from seeping into the outer box from both ends of the front rectangular tube and the rear rectangular tube, both ends of the front rectangular tube and the rear rectangular tube can be fixedly installed with blocks.

[0048] Example 3: As an optimization of the above embodiment, as shown in the attached Figures 1 to 5 As shown, the guide ring plate includes a front baffle 4, a rear baffle 5, a left baffle 6 and a right baffle 7. The lower side of the rear portion of the front baffle 4 is fixedly installed with the upper side of the front of the inner box body, the lower side of the front portion of the rear baffle 5 is fixedly installed with the upper side of the rear of the inner box body, the lower side of the right portion of the left baffle 6 is fixedly installed with the upper side of the left portion of the inner box body, and the lower side of the left portion of the right baffle 7 is fixedly installed with the upper side of the right portion of the inner box body; the front of the front baffle 4, the rear of the rear baffle 5, the left portion of the left baffle 6 and the right portion of the right baffle 7 are all bent downward to form a bevel 8, and the lower side of each bevel 8 is respectively abutted against the corresponding position of the upper side of the outer box body; the left ends of the front baffle 4 and the right baffle 7 are respectively fixedly installed with the corresponding positions of the front end and rear end of the left baffle 6, and the right ends of the front baffle 4 and the right baffle 7 are respectively fixedly installed with the corresponding positions of the front end and rear end of the right baffle 7.

[0049] Through such arrangement, the front baffle 4, the rear baffle 5, the left baffle 6 and the right baffle 7 can form a conical guide ring plate with low edges and high middle, so that the guide ring plate is inclined at a certain angle to the outer box opening of the trash can, and a potential energy difference is formed through the guide ring plate. When rainwater falls on the upper side of the guide ring plate, rainwater, water for greening and other water liquids will quickly slide down from the upper side of the guide ring plate, and then slide down to the ground along the upper end surface of the outer box body which is inclined at the outer box opening with high inside and low outside. This can further effectively reduce rainwater, water for greening and other water liquids from seeping into the trash can from the gap between the upper end of the outer box body and the upper end of the inner box body, forming accumulated water, corroding the trash can, and breeding bacteria and mosquitoes.

[0050] According to needs, each connection point of the front baffle 4, the rear baffle 5, the left baffle 6 and the right baffle 7 can be connected together by welding, which can effectively reduce the infiltration of rainwater, greening water and other water into the outer box.

[0051] Example 4: As an optimization of the above embodiment, as shown in the attached Figures 1 to 5 As shown in , 6, the annular top frame includes a front crossbeam 9, a rear crossbeam 10, a left crossbeam 11 and a right crossbeam 12. The lower side of the front crossbeam 9 is fixedly installed with the upper front side of the support frame 2, and the rear crossbeam 10 is fixedly installed on the upper rear side of the support frame 2 corresponding to the position of the front crossbeam 9; the left crossbeam 11 is fixedly installed between the left end of the front crossbeam 9 and the left end of the rear crossbeam 10, the lower side of the left crossbeam 11 is fixedly installed with the upper left side of the support frame 2, and the right crossbeam 12 is fixedly installed on the upper right side of the support frame 2 corresponding to the position of the left crossbeam 11, and the front and rear ends of the right crossbeam 12 are fixedly installed with the rear side of the right end of the front crossbeam 9 and the front side of the right end of the rear crossbeam 10 respectively; the heights of the front crossbeam 9, the rear crossbeam 10, the left crossbeam 11 and the right crossbeam 12 close to the inner box body are all higher than their heights close to the outer skin 3.

[0052] By such arrangement, the upper side surface of the annular top frame can be inclined in a shape of being higher inside and lower outside.

[0053] According to requirements, the height of the front crossbeam 9, rear crossbeam 10, left crossbeam 11 and right crossbeam 12 near the inner box body can be made higher than that near the outer skin 3 by casting or machining. After cutting a 45° notch at the end of the front crossbeam 9, rear crossbeam 10, left crossbeam 11 and right crossbeam 12, the front crossbeam 9, rear crossbeam 10, left crossbeam 11 and right crossbeam 12 are fixed together by welding. This can obtain an annular top frame with an upper side that is tilted with the inner side higher and the outer side lower, and can make the connection between the front crossbeam 9, rear crossbeam 10, left crossbeam 11 and right crossbeam 12 smoothly transition. After the annular top frame is placed flat on the corresponding position of the support frame 2 and fixed together by welding, the outer box opening at the upper end of the outer box body can be tilted with the inner side higher and the outer side lower. The inclination angle of the upper side of the front crossbeam 9, rear crossbeam 10, left crossbeam 11 and right crossbeam 12 can be smaller than the inclination angle of the hypotenuse 8.

[0054] Example 5: As an optimization of the above embodiment, as shown in the attached Figure 1 、 3 As shown in Figures 4 and 6, the lifting mechanism includes a front guide part, a rear guide part, a lifting fixed seat 13 and a lifting drive device. The front guide part and the rear guide part are provided at intervals on the front and rear sides of the inner side of the bottom of the outer box body. The front guide part and the rear guide part are respectively connected to the corresponding positions on the outer side of the inner box body, and the top ends of the front guide part and the rear guide part are higher than the top end of the inner box body; a lifting fixed seat 13 is provided between the upper part of the front guide part and the upper part of the rear guide part, and a lifting drive device is provided between the middle part of the lifting fixed seat 13 and the corresponding position on the inner side of the bottom of the outer box body.

[0055] The front guide portion and the rear guide portion can guide the inner box body to move up and down more smoothly, thereby preventing the lifting drive device from being damaged.

[0056] Depending on the requirements, both the front and rear guides can utilize the lifting structure disclosed in the prior art bidirectional fixed underground trash bin, Chinese patent publication number CN109703938A. This structure includes a central guide post and a guide sleeve. At least two central guide posts are spaced horizontally between the inner side of the base box bottom and the connector. Each central guide post is secured to corresponding positions on the connector and base box at both ends. Each central guide post is fitted with a guide sleeve that can slide up and down relative to the outer side. The lifting fixture 13 can utilize the connector structure disclosed in the aforementioned bidirectional fixed underground trash bin. The lifting drive device can be implemented based on existing technologies known in the art, such as a hydraulic cylinder or an electric push rod.

[0057] Example 6: As an optimization of the above embodiment, as shown in the attached Figure 1 、 3 As shown in Figures 4 and 6, the front guide portion includes a front column 14, a front guide wheel 15 and a front guide rail 16. The lower end of the front column 14 is fixedly installed at a corresponding position on the inner side of the bottom of the outer box body. Two front guide wheels 15 are installed on the upper rear side of the front column 14 at intervals and rotated up and down. A front guide rail 16 is provided on the inner box body corresponding to the position of the front guide wheel 15, and the top end of the front guide rail 16 is higher than the top end of the front column 14. Both front guide wheels 15 can roll on the front guide rail 16. The structure of the rear guide portion is the same as that of the front guide portion and is symmetrically distributed front to back.

[0058] As required, the rear guide section includes a rear column 30, a rear guide wheel 31, and a rear guide rail 32. Two rear guide wheels 31 are mounted on the upper front side of the rear column 30, rotating at intervals. The lifting fixture 13 can be realized using an H-shaped weldment. To reduce wear on the front and rear guide wheels 15, 31, guide grooves are provided on the outer sides of the middle portions of the front and rear guide wheels 15, 31. The front guide rail 16 near the front column 14 and the rear guide rail 32 near the rear column 30 are respectively embedded in the guide grooves. The guide grooves limit the front and rear guide rails 16, 32, respectively. Elastic anti-wear layers can be provided on the front and rear guide wheels 15, 31 at the corresponding positions of the guide grooves.

[0059] During use, as the inner box moves up and down, the front guide rail 16 and the rear guide rail 32 will move up and down with the inner box, and the front guide wheel 15 and the rear guide wheel 31 will rotate, so that the inner box can move up and down smoothly and avoid the guide wheels from wearing the guide rails.

[0060] Example 7: As an optimization of the above embodiment, as shown in the attached Figure 1 、 3 As shown in Figure 6, the lifting drive device includes a drive unit 17 and a linear actuator 18. The linear actuator 18 is fixedly installed between the middle of the lifting fixed seat 13 and the corresponding position on the inner side of the bottom of the outer box body. The drive unit 17 is provided above the lifting fixed seat 13. The drive unit 17 can drive the linear actuator 18 to move so that the inner box body can move up and down relative to the outer box body.

[0061] In this technical solution, the linear actuator 18 can adopt a hydraulic cylinder, electric push rod, gear rack mechanism, screw lifter, etc. in the existing technology, and the driving part 17 can correspondingly adopt a hydraulic pump drive system, a rotary motor, etc. In this embodiment, the linear actuator 18 can select a hydraulic cylinder.

[0062] Example 8: As an optimization of the above embodiment, as shown in the attached Figure 1 As shown, a front support portion 19 is provided between the front side of the upper portion of the front guide portion and the inner side of the front portion of the outer box body, and a rear support portion 20 is provided between the rear side of the rear guide portion corresponding to the position of the front support portion 19 and the inner side of the rear portion of the outer box body.

[0063] In this technical solution, the front support portion 19 and the rear support portion 20 utilize a T-shaped crossbeam, wherein the end with the larger outer dimensions serves as the large end of the T-beam, and the end with the smaller outer dimensions serves as the small end of the T-beam. The small end of the T-beam is fixedly mounted to a corresponding position on the front side of the front guide portion or the rear side of the rear guide portion, respectively, while the large end of the T-beam is fixedly mounted to a corresponding position on the inside of the outer box. The large end of the T-beam effectively increases the contact area with the inside of the outer box, providing better support. Depending on actual needs, the front support portion 19 and the rear support portion 20 may also utilize a transverse support beam.

[0064] Example 9: As an optimization of the above embodiment, as shown in the attached Figure 1 As shown, a reinforcement support portion 21 is provided between the upper end of the front guide portion and the upper end of the rear guide portion.

[0065] In this technical solution, the reinforcement support part 21 can be a single support beam or a support frame, which is used to fix the upper end of the front guide part and the upper end of the rear guide part together to prevent the front guide part and the rear guide part from deforming.

[0066] Example 10: As an optimization of the above embodiment, as shown in the attached Figure 1 、 3 As shown in FIG4 , a protective cover 22 is provided on the outer side of the upper portion of the front guide portion and the rear guide portion, and the lower end of the protective cover 22 is connected to the corresponding position on the upper side of the inner box body.

[0067] By such arrangement, the protective cover 22 can effectively prevent rainwater from falling into the outer box.

[0068] According to needs, in order to facilitate the installation of the protective cover 22, a support beam can be installed at the corresponding position on the upper side of the inner box body, and a garbage disposal box can be fixedly installed on the support beam. The garbage disposal box can adopt the existing technology in this field, and the outer side of the garbage disposal box is fixedly installed with the inner side of the guide ring plate; a waterproof ring with a shape matching the shape of the protective cover 22 can be fixedly installed on the support beam at the position corresponding to the inner side of the protective cover 22, and the outer side of the waterproof ring is respectively fixedly installed with the corresponding positions of the inner side of the guide ring plate and the outer side of the garbage disposal box to prevent rainwater, greening water and other liquids from seeping into the outer box body through the gap between the protective cover 22 and the cover plate.

[0069] Example 11: As an optimization of the above embodiment, as shown in the attached Figures 3 to 4 As shown, the inner box body includes a left box body 23 and a right box body 24, and the left side of the middle and lower parts of the front guide part and the rear guide part are fixedly connected to the corresponding positions on the right side of the left box body 23, and the right side of the middle and lower parts of the front guide part and the rear guide part are fixedly connected to the corresponding positions on the left side of the right box body 24.

[0070] In this embodiment, in order to ensure smooth up and down movement of the inner box, one more front guide rail 16 can be added to the front guide part, that is, a front guide rail 16 can be provided on the right side of the left box 23 and the left side of the right box 24 corresponding to the position of the front guide wheel 15, and the top ends of the two front guide rails 16 are higher than the top ends of the front columns 14, and the two front guide wheels 15 can roll between the two front guide rails 16; the structure of the rear guide part is the same as that of the front guide part and is symmetrically distributed front to back.

[0071] According to needs, support rods are installed between the upper ends of the two front guide rails 16 and the upper ends of the two rear guide rails 32. The four support rods can form a connecting frame, which can enhance the connection strength between the front guide part and the rear guide part to prevent the guide rails from deforming.

[0072] In order to increase the connection strength between the left box body 23 and the right box body 24, two connecting beams 33 are provided at front and rear intervals between the upper right front side of the left box body 23 and the upper left front side of the right box body 24, and two connecting beams 33 are also provided at front and rear intervals between the upper right rear side of the left box body 23 and the upper left rear side of the right box body 24.

[0073] Example 12: As an optimization of the above embodiment, as shown in the attached Figures 1 to 4 As shown, an upper cover plate 25 is fixedly mounted on the top surface of the inner box body, and the outer peripheral side of the upper cover plate 25 is fixedly mounted together with the inner side surface of the guide ring plate; at least one garbage inlet 26 is provided on the upper cover plate 25.

[0074] In this technical solution, two or three trash bin bodies 29 with openings upward can be distributed in the inner box body at intervals along the left and right directions to facilitate users to sort and place garbage; the trash bin body 29 can adopt existing technology in this field.

[0075] A trash can opening is provided on the upper cover 25 at the location corresponding to each trash bin body 29. A trash drop box can be installed on the upper cover 25 at each location corresponding to the trash can opening. Each trash drop box can be provided with a trash drop window that communicates with the inner cavity of the corresponding trash bin body 29. A shielding cover is provided over the trash drop window. This allows the trash drop box to shield the trash drop window 26, allowing the user to open the shielding cover and drop trash into the trash bin body 29 through the trash drop window. The trash drop box can be constructed using existing technology in the field, as needed.

[0076] According to requirements, the upper cover plate 25 and the guide ring plate can be formed in one piece to reduce processing costs.

[0077] Example 13: As an optimization of Example 12, as shown in the attached Figure 1 、 3 As shown in FIG4 , a flip cover 27 is installed at the garbage delivery port 26 .

[0078] In this technical solution, a throwing hole circle 35 is provided on the upper cover plate 25 corresponding to the garbage throwing hole 26, and the flip cover 27 can adopt the flip cover in the existing technology. The middle part of the flip cover is hinged in the throwing hole circle 35. When the garbage falls onto the flip cover, the flip cover automatically flips under the action of gravity, so that the garbage falls into the corresponding garbage bin body 29.

[0079] like Figures 3 to 4As shown, a throwing hole ring 35 is provided on the upper cover 25 corresponding to the garbage throwing hole 26, and the rear end of the flip cover 27 can be hingedly installed on the throwing hole ring 35. A foot-operated opening mechanism 34 can be set between the flip cover 27 and the upper cover 25. The foot-operated opening mechanism 34 may include a foot pedal, a foot-operated connecting rod and a support rod, etc. The upper end of the support rod is hingedly connected to the flip cover 27, the lower end of the support rod is hingedly connected to the rear end of the foot-operated connecting rod, the middle part of the foot-operated connecting rod is hingedly connected to the throwing hole ring 35 on the upper cover 25, and the front end of the foot-operated connecting rod is fixedly connected with a foot pedal. The throwing hole cover can be flipped upward when the foot pedal is stepped on downward to open the garbage throwing hole. The foot-operated opening mechanism 34 can also adopt existing technologies in this field, such as an electric foot-operated opening mechanism or a pneumatic foot-operated opening mechanism.

[0080] Example 14: As an optimization of the above embodiment, as shown in the attached Figures 4 to 6 As shown, a limit block 28 is provided on the inner side of the upper end of the outer box body.

[0081] In this technical solution, the limit block 28 can be used to limit the rising stroke of the inner box so that it can stop after rising to the ground.

[0082] According to the requirements, the limit blocks 28 can be arranged diagonally in the outer box body, which can reduce the cost and make the inner box body stop moving smoothly without deflection. In this embodiment, the limit blocks 28 are provided at the four inner corners of the upper end of the outer box body.

[0083] Example 15: As an optimization of the above embodiment, as shown in the attached Figure 1 、 3 As shown in FIG4 , at least one trash bin body 29 with an upward opening is provided in the inner box.

[0084] This arrangement makes it easier to sort and place garbage, and the garbage bin body 29 can adopt the existing technology in this field.

[0085] According to demand, in order to facilitate the classification and disposal of garbage, a combined garbage disposal box can be set on the upper side of the inner box body, and the combined garbage disposal box can adopt the existing technology in this technical field.

[0086] The above technical features respectively constitute the various embodiments of the present invention, which have strong adaptability and implementation effect. Non-essential technical features can be added or removed according to actual needs to meet the requirements of different situations.

Claims

1. An underground garbage bin that is waterproof and can resist infiltration of liquid, characterized in that It includes an outer box body, an inner box body and a lifting mechanism. The opening of the outer box body is upward, and the inner box body is installed in the outer box body, and the top surface of the inner box body is not lower than the top surface of the outer box body. The front side of the inner box body is provided with a box body inlet and outlet; a lifting mechanism is provided between the outer box body and the inner box body, and under the action of the lifting mechanism, the inner box body can move up and down relative to the outer box body; the outer box opening at the upper end of the outer box body is inclined with the inside higher and the outside lower, and a guide ring plate is provided along the circumferential edge of the top surface of the inner box body, and the lower side of the guide ring plate away from the inner box body is just against the upper side of the outer box opening.

2. The underground garbage bin that is waterproof according to claim 1, characterized in that: The outer box body includes a support frame, an outer skin and an annular top frame. The upper end of the support frame is provided with an annular top frame with an upper side that is higher inside and lower outside. The outer skin is fixedly installed on the outside of the support frame, and the top of the outer skin is lower than the top of the annular top frame. Or / and, the guide ring plate includes a front baffle, a rear baffle, a left baffle and a right baffle, the lower side of the rear of the front baffle is fixedly installed together with the upper side of the front of the inner box body, the lower side of the front of the rear baffle is fixedly installed together with the upper side of the rear of the inner box body, the lower side of the right side of the left baffle is fixedly installed together with the upper side of the left side of the inner box body, and the lower side of the left side of the right baffle is fixedly installed together with the upper side of the right side of the inner box body; the front of the front baffle, the rear of the rear baffle, the left side of the left baffle and the right side of the right baffle are all bent downward into oblique edges, and the lower side of each oblique edge is respectively abutted against the corresponding position of the upper side of the outer box body; the left ends of the front baffle and the right baffle are respectively fixedly installed together with the corresponding positions of the front end and rear end of the left baffle, and the right ends of the front baffle and the right baffle are respectively fixedly installed together with the corresponding positions of the front end and rear end of the right baffle.

3. The underground garbage bin that is waterproof according to claim 2, characterized in that: The annular top frame includes a front crossbeam, a rear crossbeam, a left crossbeam and a right crossbeam. The lower side of the front crossbeam is fixedly installed on the upper front side of the supporting frame, and the rear crossbeam is fixedly installed on the upper rear side of the supporting frame corresponding to the position of the front crossbeam; the left crossbeam is fixedly installed between the left end of the front crossbeam and the left end of the rear crossbeam, the lower side of the left crossbeam is fixedly installed on the upper left side of the supporting frame, and the right crossbeam is fixedly installed on the upper right side of the supporting frame corresponding to the position of the left crossbeam, and the front and rear ends of the right crossbeam are respectively fixedly installed on the rear side of the right end of the front crossbeam and the front side of the right end of the rear crossbeam; the heights of the front crossbeam, rear crossbeam, left crossbeam and right crossbeam close to the inner box body are all higher than their heights close to the outer skin.

4. The underground garbage bin capable of resisting water infiltration according to claim 1, 2 or 3, characterized in that: The lifting mechanism includes a front guide part, a rear guide part, a lifting fixed seat and a lifting drive device. The front guide part and the rear guide part are provided at intervals on the front and rear sides of the inner side of the bottom of the outer box body. The front guide part and the rear guide part are respectively connected to the corresponding positions on the outer side of the inner box body, and the top ends of the front guide part and the rear guide part are higher than the top end of the inner box body; a lifting fixed seat is provided between the upper part of the front guide part and the upper part of the rear guide part, and a lifting drive device is provided between the middle part of the lifting fixed seat and the corresponding position on the inner side of the bottom of the outer box body.

5. The underground garbage bin capable of resisting water infiltration according to claim 4, characterized in that: The front guide portion includes a front column, a front guide wheel, and a front guide rail. The lower end of the front column is fixedly mounted to a corresponding position on the inner side of the bottom of the outer box body. Two front guide wheels are installed on the upper rear side of the front column so as to rotate at intervals. A front guide rail is provided on the inner box body corresponding to the position of the front guide wheels, and the top end of the front guide rail is higher than the top end of the front column. Both front guide wheels can roll on the front guide rail. The structure of the rear guide portion is the same as that of the front guide portion and is symmetrically distributed front to back. Or / and, the lifting drive device includes a driving unit and a linear actuator, the linear actuator is fixedly installed between the middle of the lifting fixed seat and the corresponding position on the inner side of the bottom of the outer box body, and the driving unit is provided above the lifting fixed seat, and the driving unit can drive the linear actuator to move the inner box body up and down relative to the outer box body; Or / and, a front support portion is provided between the front side of the upper portion of the front guide portion and the inner side of the front portion of the outer box body, and a rear support portion is provided between the rear side of the rear guide portion corresponding to the position of the front support portion and the inner side of the rear portion of the outer box body; or / and, a reinforcement support portion is provided between the upper end of the front guide portion and the upper end of the rear guide portion; Or / and, a protective cover is provided on the outer side of the upper portion of the front guide portion and the rear guide portion, and the lower end of the protective cover is connected to the corresponding position on the upper side of the inner box body; Or / and, the inner box body includes a left box body and a right box body, the left side of the middle and lower parts of the front guide part and the rear guide part are fixedly connected to the corresponding positions on the right side of the left box body, and the right side of the middle and lower parts of the front guide part and the rear guide part are fixedly connected to the corresponding positions on the left side of the right box body.

6. The underground garbage bin capable of resisting water infiltration according to claim 1, 2, 3 or 5, characterized in that: An upper cover is fixedly installed on the top surface of the inner box body, and the outer peripheral side of the upper cover is fixedly installed with the inner side of the guide ring plate; at least one garbage delivery port is provided on the upper cover; or / and, a flap is installed at the garbage delivery port; Or / and, a limiting block is provided on the inner side of the upper end of the outer box body.

7. The underground garbage bin capable of resisting water infiltration according to claim 4, characterized in that: An upper cover is fixedly installed on the top surface of the inner box body, and the outer peripheral side of the upper cover is fixedly installed with the inner side of the guide ring plate; at least one garbage delivery port is provided on the upper cover; or / and, a flap is installed at the garbage delivery port; Or / and, a limiting block is provided on the inner side of the upper end of the outer box body.

8. The underground garbage bin capable of resisting water infiltration according to claim 1, 2, 3, 5 or 7, characterized in that: At least one garbage bin body with an upward opening is provided in the inner box.

9. The underground garbage bin capable of resisting water infiltration according to claim 4, characterized in that: At least one garbage bin body with an upward opening is provided in the inner box.

10. The underground garbage bin capable of resisting water infiltration according to claim 6, characterized in that: At least one garbage bin body with an upward opening is provided in the inner box.

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