A compressible trash can inner bucket structure

CN224632401UActive Publication Date: 2026-08-14SHENZHEN CHUANGHUIHUANG PROTECTION TECH DEV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-07-25
Publication Date
2026-08-14

AI Technical Summary

Technical Problem

但是丝杆安装在靠近垃圾投放区域,投放时垃圾容易飞溅或掉落至丝杆表面,形成难以清理的粘附物,随着使用次数增加,转动转柄时会出现明显卡顿甚至卡死,导致压缩功能失效

Benefits of technology

[0015]1、本实用新型通过转动旋钮,带动梯形丝杆在轴承内转动,使固定块跟随丝杆螺母沿着梯形丝杆的轴向进行移动,固定块移动过程中第一连杆、第二连杆各自沿铰接点运动,第三连杆和第四连杆随之转动,配合滑杆对滑动块的导向作用,使按压板平稳下降对蓬松垃圾进行压缩,使内桶本体内部空间利用率显著提升,梯形丝杆位于内桶盖内部上方,配合梯形丝杆表面聚四氟乙烯涂层的防附着特性,使得垃圾不易堆积在螺纹间隙,从而减少垃圾附着,降低了卡顿概率。

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Abstract

This utility model discloses a compressible trash can inner bucket structure, relating to the field of trash can technology. It includes an inner bucket body and a sliding rod. An inner bucket lid is placed on top of the inner bucket body, and bearings are installed at through holes on both sides of the inner bucket lid. A trapezoidal lead screw is installed inside the bearing, and a knob is connected to the left end of the trapezoidal lead screw. An insert rod is inserted through the surface of the knob, and a pressure plate is fixed to the outside of the insert rod. A second spring is sleeved on the outside of the insert rod. An insertion hole is opened on the left side of the inner bucket lid, and a lead screw nut is connected to the outside of the trapezoidal lead screw. With this compressible trash can inner bucket structure, after the inner bucket lid is placed on top of the inner bucket body, releasing the pull block causes the slider, under the pushing force of the first spring, to drive the pull block into the slots on both sides of the lower part of the inner bucket lid, thereby stably fixing the inner bucket lid to the top of the inner bucket body. This reduces odor leakage and prevents the inner bucket lid from moving or slipping off, maintaining the overall appearance.
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Description

Technical Field

[0001] This utility model relates to the field of trash can technology, specifically to a compressible trash can inner bucket structure. Background Technology

[0002] In daily life at home and in the workplace, trash cans are indispensable household items, and their performance directly affects the convenience of trash collection and the hygiene of the surrounding environment. Ordinary trash cans have a fixed open inner container, which can only passively hold trash and cannot effectively handle loose waste such as waste paper, styrofoam, and plastic bags. In order to improve the space utilization of trash cans, some trash cans with compression functions have emerged.

[0003] For example, utility model application CN202022026582.4 discloses a compressible overflow-proof trash can structure. When there is a large amount of loose trash inside the can, the user can crank the handle. Because the movable block is connected to the lead screw, the pressing plate can move up and down, thus pressing the loose trash and improving the utilization rate of the internal space of the can, achieving the effect of compressing the trash. However, the lead screw is installed near the trash disposal area, and trash easily splashes or falls onto the surface of the lead screw during disposal, forming a difficult-to-clean residue. With repeated use, the handle may become noticeably stuck or even jammed, causing the compression function to fail.

[0004] Therefore, in view of this, we studied and improved the existing structure and its shortcomings, and proposed a compressible inner bin structure for trash cans. Utility Model Content

[0005] The purpose of this invention is to provide a compressible inner bin structure for a trash can, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a compressible trash can inner bucket structure, including an inner bucket body and a sliding rod. An inner bucket lid is placed on top of the inner bucket body, and bearings are installed at through holes on both sides of the inner bucket lid. A trapezoidal lead screw is installed inside the bearing, and a knob is connected to the left end of the trapezoidal lead screw. An insert rod is inserted through the surface of the knob, and a pressure plate is fixed to the outside of the insert rod. A second spring is sleeved on the outside of the insert rod, and an insertion hole is opened on the left side of the inner bucket lid. The trapezoidal lead screw... The external connection is a lead screw nut, and a fixing block is provided on the outside of the lead screw nut. A first connecting rod is hinged to the middle of the fixing block by a pin, and a third connecting rod is hinged to the other end of the first connecting rod by a pin. A sliding block is hinged to the other end of the third connecting rod by a pin. The sliding rod passes through the middle of the sliding block. A second connecting rod is hinged to the middle of the first connecting rod by a pin. A fourth connecting rod is hinged to the middle of the third connecting rod by a pin, and a pressing plate is hinged to the end of the fourth connecting rod away from the second connecting rod by a pin.

[0007] Furthermore, an opening is provided on the upper right side of the inner tub body, and a first spring is provided in the sliding groove on both sides of the inner tub body.

[0008] Furthermore, a slider is fixed to one end of the first spring, and a pull block is connected to the middle of one side of the slider.

[0009] Furthermore, the slider is elastically connected to the inner barrel body via a first spring, and slots are provided on both sides of the lower part of the inner barrel cover, the internal structure of which matches the external structure of the slider.

[0010] Furthermore, the insertion holes are distributed in a ring at equal intervals along the axis of the trapezoidal lead screw, and the inner diameter of the insertion holes matches the outer diameter of the insertion rod.

[0011] Furthermore, the pressure plate is elastically connected to the knob via a second spring, and the bearing, trapezoidal lead screw, and knob are coaxially arranged.

[0012] Furthermore, the end of the second link away from the fourth link is hinged to the inner barrel lid via a pin, and the second link and the third link are parallel to each other, as are the first link and the fourth link.

[0013] Furthermore, the slide bar and the pressing plate are fixedly connected, and the external dimensions of the pressing plate match the internal structure of the inner barrel body.

[0014] This utility model provides a compressible inner bin structure for a trash can, which has the following beneficial effects:

[0015] 1. This utility model uses a knob to rotate a trapezoidal lead screw within a bearing, causing a fixed block to move along the axial direction of the lead screw nut. During the movement of the fixed block, the first and second connecting rods move along their hinge points, while the third and fourth connecting rods rotate accordingly. This, combined with the guiding action of the sliding rod on the sliding block, allows the pressing plate to descend smoothly and compress loose garbage, significantly improving the utilization rate of the internal space of the inner bucket. The trapezoidal lead screw is located above the inner lid, and its surface is coated with polytetrafluoroethylene (PTFE) for its anti-adhesion properties, preventing garbage from accumulating in the thread gaps, thus reducing garbage adhesion and lowering the probability of jamming.

[0016] 2. In this utility model, after the inner bucket lid is placed on top of the inner bucket body, the pull block is released, and the slider, under the pushing force of the first spring, drives the pull block to embed into the slots on both sides of the inner bucket lid, thereby stably fixing the inner bucket lid on top of the inner bucket body. This reduces odor leakage on the one hand, and prevents the inner bucket lid from moving or slipping off at will on the other hand, maintaining the overall appearance. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the external structure of the inner barrel body of a compressible trash can inner barrel structure according to this utility model.

[0018] Figure 2 This is a cross-sectional view of the inner barrel body of a compressible trash can inner barrel structure according to the present invention.

[0019] Figure 3 This utility model relates to a compressible inner bin structure for a trash can. Figure 2 Enlarged structural diagram at point A in the middle;

[0020] Figure 4 This utility model relates to a compressible inner bin structure for a trash can. Figure 2 Enlarged structural diagram at point B.

[0021] In the diagram: 1. Inner tub body; 2. Opening; 3. First spring; 4. Slider; 5. Pull block; 6. Inner tub lid; 7. Bearing; 8. Trapezoidal lead screw; 9. Knob; 10. Insert rod; 11. Pressure plate; 12. Second spring; 13. Insertion hole; 14. Lead screw nut; 15. Fixing block; 16. First connecting rod; 17. Second connecting rod; 18. Third connecting rod; 19. Fourth connecting rod; 20. Sliding block; 21. Sliding rod; 22. Pressing plate. Detailed Implementation

[0022] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0023] like Figure 1 , Figure 2and Figure 4 As shown, a compressible trash can inner bucket structure includes an inner bucket body 1 and a sliding rod 21. An inner bucket cover 6 is placed on top of the inner bucket body 1, and bearings 7 are installed at through holes on both sides of the inner bucket cover 6. A trapezoidal lead screw 8 is installed inside the bearing 7, and a knob 9 is connected to the left end of the trapezoidal lead screw 8. An insert rod 10 is inserted through the surface of the knob 9, and a pressure plate 11 is fixed to the outside of the insert rod 10. A second spring 12 is sleeved on the outside of the insert rod 10. An insertion hole 13 is opened on the left side of the inner bucket cover 6. The insertion holes 13 are distributed equidistantly in a ring along the axis of the trapezoidal lead screw 8, and the inner diameter of the insertion hole 13 matches the outer diameter of the insert rod 10. The pressure plate 11 is elastically connected to the knob 9 through the second spring 12. The bearings 7, trapezoidal lead screw 8, and knob 9 are coaxially arranged. A lead screw nut 14 is connected to the outside of the trapezoidal lead screw 8, and a screw nut 14 is provided on the outside of the lead screw nut 14. A fixed block 15 is connected to a first connecting rod 16 via a pin at its middle part, and a third connecting rod 18 is connected to the other end of the first connecting rod 16 via a pin. A sliding block 20 is connected to the other end of the third connecting rod 18 via a pin. A sliding rod 21 passes through the middle of the sliding block 20. A second connecting rod 17 is connected to the middle of the first connecting rod 16 via a pin, and a fourth connecting rod 19 is connected to the middle of the third connecting rod 18 via a pin. A pressing plate 22 is connected to the end of the fourth connecting rod 19 away from the second connecting rod 17 via a pin. The end of the second connecting rod 17 away from the fourth connecting rod 19 is connected to the inner bucket lid 6 via a pin. The second connecting rod 17 and the third connecting rod 18 are parallel to each other, as are the first connecting rod 16 and the fourth connecting rod 19. The sliding rod 21 and the pressing plate 22 are fixedly connected, and the external dimensions of the pressing plate 22 match the internal structure of the inner bucket body 1.

[0024] The specific operation is as follows: by rotating the knob 9, the trapezoidal lead screw 8 is driven to rotate within the bearing 7, causing the fixed block 15 to move along the axial direction of the trapezoidal lead screw 8 along with the lead screw nut 14. During the movement of the fixed block 15, the first connecting rod 16 and the second connecting rod 17 move along their respective hinge points, and the third connecting rod 18 and the fourth connecting rod 19 rotate accordingly. With the guiding effect of the sliding rod 21 on the sliding block 20, the pressing plate 22 descends smoothly to compress the loose garbage, significantly improving the utilization rate of the internal space of the inner bucket body 1. The trapezoidal lead screw 8 is located above the inner bucket cover 6. With the anti-adhesion properties of the polytetrafluoroethylene coating on the surface of the trapezoidal lead screw 8, garbage is less likely to accumulate in the thread gap, thereby reducing garbage adhesion and lowering the probability of jamming.

[0025] like Figures 1 to 3 As shown, an opening 2 is provided on the upper right side of the inner tub body 1, and a first spring 3 is provided in the sliding groove on both sides of the inner tub body 1. A slider 4 is fixed to one end of the first spring 3, and a pull block 5 is connected to the middle of one side of the slider 4. The slider 4 is elastically connected to the inner tub body 1 through the first spring 3, and a slot is provided on the lower sides of the inner tub cover 6. The internal structure of the slot matches the external structure of the pull block 5.

[0026] The specific operation is as follows: After placing the inner bucket lid 6 on the top of the inner bucket body 1, release the pull block 5. Under the pushing force of the first spring 3, the slider 4 drives the pull block 5 to embed into the slots on both sides of the inner bucket lid 6, thereby stably fixing the inner bucket lid 6 on the top of the inner bucket body 1. This reduces odor leakage on the one hand, and prevents the inner bucket lid 6 from moving or slipping off at will on the other hand, maintaining the overall appearance.

[0027] In summary, when using the compressible trash can inner bucket structure, first pull the pull blocks 5 to both sides, so that the slider 4 slides outward along the sliding grooves on both sides of the inner bucket body 1, and the first spring 3 is compressed. Then, place the inner bucket lid 6 on top of the inner bucket body 1, release the pull blocks 5, so that the slider 4 returns to its original position under the elastic force of the first spring 3, and drive the pull blocks 5 to engage in the slot of the inner bucket lid 6, thereby fixing the inner bucket lid 6.

[0028] During use, garbage is fed into the inner bucket body 1 through opening 2. When the garbage in the inner bucket body 1 needs to be compressed, the insert rod 10 is pulled outward first, so that the second spring 12 is compressed by the pressure plate 11. The insert rod 10 is disengaged from the insertion hole 13 on the left side of the inner bucket cover 6. Then, the knob 9 is turned so that the screw nut 14 moves axially along the trapezoidal screw 8. The screw nut 14 drives the fixed block 15 to move, so that the first connecting rod 16 and the second connecting rod 17 move along the hinge point respectively. During the movement of the first connecting rod 16 and the second connecting rod 17, the third connecting rod 18 and the fourth connecting rod 19 move together. At the same time, the third connecting rod 18 drives the sliding block 20 to slide along the sliding rod 21. The sliding rod 21 guides the sliding block 20 to ensure that the pressing plate 22 descends stably in the inner bucket body 1 to compress the garbage in the inner bucket body 1.

[0029] When the pressing plate 22 compresses the garbage to a certain extent, the knob 9 is rotated in the opposite direction. At this time, the trapezoidal lead screw 8 drives the lead screw nut 14 to move in the opposite direction. Through the first connecting rod 16, the second connecting rod 17, the third connecting rod 18 and the fourth connecting rod 19, the pressing plate 22 is moved upward, so that new space is created inside the inner bucket body 1, avoiding frequent cleaning due to insufficient space. Finally, the knob 9 is stopped, the pressing plate 11 is released, and the insertion rod 10 is inserted into the corresponding insertion hole 13 under the elastic force of the second spring 12, thus fixing the knob 9.

[0030] The embodiments of this utility model are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the utility model to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical applications of this utility model, and to enable those skilled in the art to understand this utility model and design various embodiments with various modifications suitable for a particular purpose.

Claims

1. A compressible inner bucket structure of a garbage can, comprising an inner bucket body (1) and a sliding rod (21), characterized in that, An inner bucket cover (6) is placed on the top of the inner bucket body (1), and bearings (7) are provided at the through holes on both sides of the inner bucket cover (6). A trapezoidal lead screw (8) is provided inside the bearing (7), and a knob (9) is connected to the left end of the trapezoidal lead screw (8). An insert rod (10) is provided through the surface of the knob (9), and a pressure plate (11) is fixed to the outside of the insert rod (10). A second spring (12) is sleeved on the outside of the insert rod (10), and an insertion hole (13) is opened on the left side of the inner bucket cover (6). A lead screw nut (14) is connected to the outside of the trapezoidal lead screw (8), and a lead screw nut (14) is provided on the outside of the lead screw nut (14). A fixed block (15) is provided, with a first connecting rod (16) hinged to the middle of the fixed block (15) by a pin, and a third connecting rod (18) hinged to the other end of the first connecting rod (16) by a pin. A sliding block (20) is hinged to the other end of the third connecting rod (18) by a pin. A sliding rod (21) passes through the middle of the sliding block (20). A second connecting rod (17) is hinged to the middle of the first connecting rod (16) by a pin. A fourth connecting rod (19) is hinged to the middle of the third connecting rod (18) by a pin. A pressing plate (22) is hinged to the end of the fourth connecting rod (19) away from the second connecting rod (17) by a pin.

2. The compressible inner bucket structure of claim 1, wherein, An opening (2) is provided on the upper right side of the inner barrel body (1), and a first spring (3) is provided in the sliding groove on both sides of the inner barrel body (1).

3. The compressible inner bin structure of claim 2, wherein, One end of the first spring (3) is fixed with a slider (4), and a pull block (5) is connected to the middle of one side of the slider (4).

4. The compressible trash can inner bucket structure according to claim 3, characterized in that, The slider (4) is elastically connected to the inner barrel body (1) through the first spring (3), and the inner barrel cover (6) has slots on both sides below, the internal structure of the slots matching the external structure of the pull block (5).

5. The compressible trash can inner bucket structure of claim 1, wherein, The insertion holes (13) are distributed in a ring at equal intervals along the axis of the trapezoidal lead screw (8), and the inner diameter of the insertion holes (13) matches the outer diameter of the insertion rod (10).

6. The compressible trash can inner bucket structure of claim 1, wherein, The pressure plate (11) is elastically connected to the knob (9) via the second spring (12), and the bearing (7), the trapezoidal lead screw (8) and the knob (9) are coaxially arranged.

7. The compressible trash can inner bucket structure of claim 1, wherein, The end of the second link (17) away from the fourth link (19) is hinged to the inner barrel cover (6) by a pin, and the second link (17) and the third link (18) are parallel to each other, and the first link (16) and the fourth link (19) are parallel to each other.

8. The compressible trash can inner bucket structure of claim 1, wherein, The slide bar (21) and the pressing plate (22) are fixedly connected, and the external dimensions of the pressing plate (22) match the internal structure of the inner barrel body (1).

Citation Information

Patent Citations

  • Compressible anti-overflow garbage can structure

    CN213386005U