Dual stroke pedal opening device

Abstract

The utility model discloses a double stroke foot -operated opening device, including double stroke foot -operated opening mechanism and multilink lever drive mechanism, the bottom of the barrel body is integrally formed with the bucket bottom of recess, and double stroke foot -operated opening mechanism includes pedal, pedal connecting rod, pedal support and return spring, and the pedal is fixedly connected with pedal connecting rod, and the pedal is hinged on the pedal support, and the pedal support is fixed in the inner wall of the recess of the bucket bottom, and the pedal connecting rod swings up and down around the pedal support, and the return spring is connected with the pedal connecting rod and is used for providing restoring force, and multilink lever drive mechanism includes scissor mechanism, drive connecting rod, connecting pair, pull rod. By improving the traditional whole top cover into two section structure, and combining double stroke foot -operated opening mechanism and multilink lever drive mechanism, realize the operation mode of " half -step open front cover, full -step full open", and the structure significantly reduces the opening force, expands the angle of the throw mouth, improves the convenience and the health of throwing.

Description

Technical Field

[0001] This utility model relates to the field of sanitation equipment technology, specifically a double-stroke foot pedal opening device. Background Technology

[0002] A trash can is a container used to collect and store waste. It is typically made of plastic, metal, or composite materials and is commonly found in homes, offices, streets, and other public places. Trash cans are designed to maintain a clean and hygienic environment, making it convenient for people to dispose of various household waste or office waste. Depending on the usage scenario, trash cans can be divided into various types, such as indoor trash cans, outdoor trash cans, and recycling bins. Some are also equipped with lids to prevent odors from escaping or trash from overflowing.

[0003] The trash cans used in urban sanitation work are mainly 240-liter large-capacity upright trash cans. With the continued implementation of urban waste sorting, the use of large trash cans in communities is constantly increasing, and the types of waste disposed of and the people using them are becoming more diverse. The existing structure and opening method of large trash cans lead to the following problems: 1. The one-piece top cover cannot simultaneously accommodate the convenient disposal of small garbage bags and the overall disposal of large garbage. 2. Foot-operated lid opening mechanisms mostly use iron rods or chains to pull the lid, resulting in long pedal travel and heavy operation; 3. Most foot-operated trash cans have a small opening angle, making it inconvenient to dispose of large items or whole bags of trash. Utility Model Content

[0004] The purpose of this invention is to provide a dual-stroke foot pedal opening device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a double-stroke foot pedal opening device, wherein the double-stroke foot pedal opening device is disposed on the barrel body and the segmented top cover, characterized in that: the double-stroke foot pedal opening device includes a double-stroke foot pedal opening mechanism and a multi-link lever transmission mechanism, wherein: The bottom of the barrel is integrally formed with a grooved bottom. The dual-stroke foot pedal opening mechanism includes a pedal, a pedal connecting rod, a pedal support rod, and a return spring. The pedal is fixedly connected to the pedal connecting rod, and the pedal is hinged to the pedal support rod. The pedal support rod is fixed to the inner wall of the groove at the bottom of the barrel. The pedal connecting rod swings up and down around the pedal support rod. The return spring is connected to the pedal connecting rod to provide a restoring force. The multi-link lever transmission mechanism includes a scissor mechanism, a transmission link, a connecting pair, and a pull rod; The rear end of the pedal linkage is hinged to the scissor mechanism, which is mounted on the side wall of the barrel via the scissor fixing block. The upper end of the scissor mechanism is hinged to the transmission linkage, which is connected to the pull rod via the connecting pair.

[0006] Preferably, the segmented top cover includes a front cover plate and a rear cover plate, which are connected by a rotatable hinge, and the rear end of the rear cover plate is hinged to the rear part of the upper edge of the barrel.

[0007] Preferably, the front cover plate rotates and opens around the hinge axis of the rotatable hinge under the action of the pull rod, realizing partial opening; the rear cover plate drives the front cover plate to open synchronously under the continuous action of the pull rod, realizing the overall opening of the segmented top cover.

[0008] Preferably, the multi-link lever transmission mechanism further includes a top cover fixing block, a pull rod limiting block, a connecting pair support, a connecting rod limiting block, a limiting boss, and a scissor fork fixing block. The top cover fixing block is fixedly connected to the surface of the front cover plate, the pull rod limiting block is fixedly connected to the surface of the rear cover plate, the connecting pair support is fixedly connected to the upper side of the barrel body, the connecting rod limiting block is fixedly connected to the middle side of the barrel body, the limiting boss is fixedly connected to the upper and lower ends of the transmission connecting rod, and the scissor fork fixing block is fixedly connected to the lower side of the barrel body.

[0009] Preferably, the upper end of the pull rod is connected to the front cover plate through the top cover fixing block, and the pull rod limiting block and the connecting rod limiting block are used to limit the movement stroke of the pull rod and the transmission connecting rod.

[0010] Preferably, the pedal has a dual-stroke design, including a first stroke stage for light pressing and a second stroke stage for heavy pressing, achieving two-level response through staged transmission.

[0011] Preferably, one end of the return spring is fixedly connected to the upper surface of the pedal linkage near the pedal, and the other end of the return spring is fixedly connected to the top of the groove in the bottom of the barrel.

[0012] Preferably, a booster spring is also fixedly connected to the surface of the pedal link, and the booster spring is fixedly connected between the pedal link and the bottom of the barrel.

[0013] Preferably, the two limiting protrusions correspond to the end positions of the opening of the front cover and the overall opening of the segmented top cover, respectively.

[0014] Preferably, the top cover fixing block is integrally injection molded with the front cover plate, the pull rod limiting block is integrally injection molded with the rear cover plate, and the connecting auxiliary support, connecting rod limiting block and scissor fork fixing block are all integrally injection molded with the barrel body.

[0015] Beneficial effects This utility model provides a dual-stroke foot pedal opening device, which has the following beneficial effects: 1. Significantly improved ease of operation: The segmented top cover adopts a dual-stroke design to meet different usage scenarios, avoids unnecessary full-opening operation, and takes into account both the convenient disposal of small garbage bags and the overall disposal of large garbage.

[0016] 2. Effortless opening: With lever amplification and spring assistance, the pedal force can be reduced by more than 40%, making it suitable for all types of people. This structure significantly reduces the opening effort.

[0017] 3. Wide opening angle: The segmented top cover can open up to 110°, providing a wide opening that reduces the chance of bags or items getting stuck. The wider opening angle makes it easier to dispose of large items or whole bags of waste, and also makes cleaning the inside of the bin easier.

[0018] 4. Low maintenance cost: Modular design, key components are replaceable, and it is compatible with the existing standard trash can dimensions. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the segmented top cover fully open three-dimensional structure of this utility model; Figure 2 This is a schematic diagram of the segmented top cover semi-open three-dimensional structure of this utility model; Figure 3 This is a schematic diagram of the overall three-dimensional structure of the segmented top cover of this utility model after it is closed; Figure 4 This is a top view schematic diagram of the double-stroke foot pedal opening mechanism and the multi-link lever transmission mechanism of this utility model. Figure 5 This is a bottom view schematic diagram of the double-stroke foot pedal opening mechanism and the multi-link lever transmission mechanism of this utility model.

[0020] In the diagram: 101, front cover plate; 102, rear cover plate; 103, rotatable hinge; 104, barrel body; 105, barrel bottom; 11, pedal; 12, pedal connecting rod; 13, scissor mechanism; 14, transmission connecting rod; 15, connecting pair; 16, pull rod; 21, top cover fixing block; 22, pull rod limiting block; 23, connecting pair support; 24, connecting rod limiting block; 25, limiting boss; 26, scissor fixing block; 31, pedal support rod; 32, assist spring; 33, return spring. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0023] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0024] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0025] Please see Figure 1-5 This utility model provides a technical solution: a double-stroke foot pedal opening device, which is installed on the barrel body 104 and the segmented top cover. The double-stroke foot pedal opening device includes a double-stroke foot pedal opening mechanism and a multi-link lever transmission mechanism, wherein: The bottom of the barrel body 104 is integrally formed with a barrel bottom 105 having a groove; The dual-stroke foot pedal opening mechanism includes a pedal 11, a pedal connecting rod 12, a pedal support rod 31, and a return spring 33. The pedal 11 is fixedly connected to the pedal connecting rod 12, and the pedal 11 is hinged to the pedal support rod 31. The pedal support rod 31 is fixed to the inner wall of the groove in the bottom of the barrel 105. The pedal connecting rod 12 swings up and down around the pedal support rod 31. The return spring 33 is connected to the pedal connecting rod 12 and is used to provide a restoring force. The multi-link lever transmission mechanism includes a scissor mechanism 13, a transmission link 14, a connecting pair 15, and a pull rod 16; The rear end of the pedal linkage 12 is hinged to the scissor mechanism 13. The scissor mechanism 13 is installed on the side wall of the barrel body 104 through the scissor fixing block 26. The upper end of the scissor mechanism 13 is hinged to the transmission linkage 14. The transmission linkage 14 is connected to the pull rod 16 through the connecting pair 15. The multi-link lever transmission mechanism is made of stainless steel or reinforced nylon material, which makes it corrosion-resistant and wear-resistant, thereby improving its service life.

[0026] The segmented top cover includes a front cover plate 101 and a rear cover plate 102. The front cover plate 101 and the rear cover plate 102 are connected by a rotatable hinge 103. The rear end of the rear cover plate 102 is hinged to the rear part of the upper edge of the barrel body 104.

[0027] The front cover 101 rotates and opens around the hinge axis of the rotatable hinge 103 under the action of the pull rod 16, realizing partial opening. The rear cover 102 drives the front cover 101 to open synchronously under the continuous action of the pull rod 16, realizing the overall opening of the segmented top cover. By improving the traditional one-piece top cover into a two-section structure, and combining a double-stroke foot pedal opening mechanism and a multi-link lever transmission mechanism, the operation mode of "half-stepping to open the front cover and full-stepping to fully open" is realized. The double-stroke design meets different usage scenarios and avoids unnecessary full-opening operation.

[0028] The multi-link lever transmission mechanism also includes a top cover fixing block 21, a pull rod limiting block 22, a connecting pair support 23, a connecting rod limiting block 24, a limiting boss 25, and a scissor fork fixing block 26. The top cover fixing block 21 is fixedly connected to the surface of the front cover plate 101, the pull rod limiting block 22 is fixedly connected to the surface of the rear cover plate 102, the connecting pair support 23 is fixedly connected to the upper side of the barrel body 104, the connecting rod limiting block 24 is fixedly connected to the middle side of the barrel body 104, the limiting boss 25 is fixedly connected to the upper and lower ends of the transmission connecting rod 14, and the scissor fork fixing block 26 is fixedly connected to the lower side of the barrel body 104.

[0029] The upper end of the pull rod 16 is connected to the front cover plate 101 through the top cover fixing block 21. The pull rod limiting block 22 and the connecting rod limiting block 24 are used to limit the movement stroke of the pull rod 16 and the transmission connecting rod 14.

[0030] The pedal 11 features a dual-stroke design, including a light-press stage in the first stroke and a heavy-press stage in the second stroke, achieving two levels of response through phased transmission.

[0031] One end of the return spring 33 is fixedly connected to the upper surface of the pedal linkage 12 near the pedal 11, and the other end of the return spring 33 is fixedly connected to the top of the groove in the bottom of the barrel 105.

[0032] A booster spring 32 is also fixedly connected to the surface of the pedal link 12. The booster spring 32 is fixedly connected between the pedal link 12 and the bottom of the bucket 105. By setting the booster spring 32, the booster spring 32 applies a pulling force to the pedal link 12 to provide assistance, which makes it easier to open the segmented top cover.

[0033] After the front cover 101 and the rear cover 102 are opened, they are maintained in the open state by the assist spring 32. After the foot pedal is released, they automatically and slowly close under the action of gravity and the return spring 33, so as to avoid violent impact between the segmented top cover and the barrel body 104.

[0034] The two limiting protrusions 25 correspond to the end points of the opening of the front cover 101 and the overall opening of the segmented top cover, respectively.

[0035] The top cover fixing block 21 is integrally injection molded with the front cover plate 101, the pull rod limiting block 22 is integrally injection molded with the rear cover plate 102, and the connecting auxiliary support 23, the connecting rod limiting block 24, and the scissor fork fixing block 26 are all integrally injection molded with the bin body 104. The front cover plate 101, the rear cover plate 102, and the bin body 104 are formed by integral injection molding, which not only ensures the strength of the trash can, but also reduces the number of parts and installations, thereby reducing the production cost of the trash can.

[0036] The barrel body 104 and the segmented top cover are made of HDPE or PP injection molding, with optimized wall thickness distribution to reduce weight and maintain strength.

[0037] By setting up a dual-stroke foot pedal opening mechanism and a multi-link lever transmission mechanism, and utilizing lever amplification and spring assistance, the foot pedal force of pedal 11 can be reduced by more than 40%, making it suitable for all types of people. This structure significantly reduces the opening force.

[0038] The segmented top cover can open up to 110°, providing a wide opening that reduces the risk of bags or items getting stuck. The wider opening angle makes it easier to dispose of large items or whole bags of waste, and also facilitates cleaning inside the bin.

[0039] It improves both the convenience and hygiene of waste disposal, taking into account both the easy disposal of small garbage bags and the overall disposal of large garbage, and is especially suitable for 240-liter large-sized classified garbage bins.

[0040] In addition, the transmission system has fewer parts and can be enclosed to reduce contamination and external damage; the segmented top cover can be opened without touching, reducing the risk of cross-contamination.

[0041] The entire sanitation trash can adopts a modular design, key components are replaceable, and it is compatible with the existing standard trash can dimensions, making it suitable for large-scale promotion.

[0042] Working principle: 1. Daily small waste disposal: The user lightly presses the pedal 11 to the first stroke position, and the pedal connecting rod 12 rotates and swings around the pedal support rod 31. The pedal connecting rod 12 drives the scissor mechanism 13 to extend and retract, which, together with the transmission connecting rod 14 and the connecting pair 15, can apply a pulling force to the pull rod 16. The pull rod 16 pulls the front cover plate 101, causing the front cover plate 101 to rotate upward about 45° to 60° around the rotatable hinge 103, forming a disposal opening for easy disposal of small items such as garbage bags; at this time, the rear cover plate 102 remains closed to prevent rain and odor diffusion. 2. Large trash or cleaning mode: The user continues to press the pedal 11 to the second stroke, and the lever 16 pulls the rear cover 102 to lift it up, so that the rear cover 102 rotates upward about 70° around the rear hinge axis, and finally the overall opening angle of the segmented top cover reaches 90° to 100°, which is convenient for putting in large trash or cleaning the inside of the bin. 3. After releasing the foot pedal: the return spring 33 acts in the opposite direction, and together with the gravity of the segmented top cover, it makes the segmented top cover close smoothly.

[0043] The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other. Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A dual-stroke foot pedal opening device, wherein the dual-stroke foot pedal opening device is disposed on the barrel body (104) and the segmented top cover, characterized in that: The dual-stroke foot pedal opening device includes a dual-stroke foot pedal opening mechanism and a multi-link lever transmission mechanism, wherein: The bottom of the barrel body (104) is integrally formed with a barrel bottom (105) having a groove. The dual-stroke foot pedal opening mechanism includes a pedal (11), a pedal connecting rod (12), a pedal support rod (31), and a return spring (33). The pedal (11) is fixedly connected to the pedal connecting rod (12), and the pedal (11) is hinged to the pedal support rod (31). The pedal support rod (31) is fixed to the inner wall of the groove of the bottom of the bucket (105). The pedal connecting rod (12) swings up and down around the pedal support rod (31). The return spring (33) is connected to the pedal connecting rod (12) to provide a restoring force. The multi-link lever transmission mechanism includes a scissor mechanism (13), a transmission link (14), a connecting pair (15), and a pull rod (16). The rear end of the pedal link (12) is hinged to the scissor mechanism (13). The scissor mechanism (13) is installed on the side wall of the barrel body (104) through the scissor fixing block (26). The upper end of the scissor mechanism (13) is hinged to the transmission link (14). The transmission link (14) is connected to the pull rod (16) through the connecting pair (15).

2. The dual-stroke foot pedal opening device according to claim 1, characterized in that: The segmented top cover includes a front cover plate (101) and a rear cover plate (102). The front cover plate (101) and the rear cover plate (102) are connected by a rotatable hinge (103). The rear end of the rear cover plate (102) is hinged to the rear part of the upper edge of the barrel body (104).

3. The dual-stroke foot pedal opening device according to claim 2, characterized in that: The front cover (101) is opened by rotating around the hinge axis of the rotatable hinge (103) under the action of the pull rod (16), realizing partial opening. The rear cover (102) drives the front cover (101) to open synchronously under the continuous action of the pull rod (16), realizing the overall opening of the segmented top cover.

4. The dual-stroke foot pedal opening device according to claim 3, characterized in that: The multi-link lever transmission mechanism also includes a top cover fixing block (21), a pull rod limiting block (22), a connecting support (23), a connecting rod limiting block (24), a limiting boss (25), and a scissor fork fixing block (26). The top cover fixing block (21) is fixedly connected to the surface of the front cover plate (101), the pull rod limiting block (22) is fixedly connected to the surface of the rear cover plate (102), the connecting support (23) is fixedly connected to the upper side of the barrel body (104), the connecting rod limiting block (24) is fixedly connected to the middle side of the barrel body (104), the limiting boss (25) is fixedly connected to the upper and lower ends of the transmission connecting rod (14), and the scissor fork fixing block (26) is fixedly connected to the lower side of the barrel body (104).

5. A dual-stroke foot pedal opening device according to claim 4, characterized in that: The upper end of the pull rod (16) is connected to the front cover plate (101) through the top cover fixing block (21). The pull rod limiting block (22) and the connecting rod limiting block (24) are used to limit the movement stroke of the pull rod (16) and the transmission connecting rod (14).

6. The dual-stroke foot pedal opening device according to claim 5, characterized in that: The pedal (11) is a dual-stroke design, including a light-press stage in the first stroke and a heavy-press stage in the second stroke, achieving two-level response through staged transmission.

7. The dual-stroke foot pedal opening device according to claim 1, characterized in that: One end of the return spring (33) is fixedly connected to the upper surface of the pedal linkage (12) near the pedal (11), and the other end of the return spring (33) is fixedly connected to the top of the groove in the bottom of the barrel (105).

8. The dual-stroke foot pedal opening device according to claim 1, characterized in that: A booster spring (32) is also fixedly connected to the surface of the pedal link (12), and the booster spring (32) is fixedly connected between the pedal link (12) and the bottom of the barrel (105).

9. A dual-stroke foot pedal opening device according to claim 4, characterized in that: The two limiting protrusions (25) correspond to the end positions of the opening of the front cover plate (101) and the overall opening of the segmented top cover, respectively.

10. A dual-stroke foot pedal opening device according to claim 4, characterized in that: The top cover fixing block (21) is integrally injection molded with the front cover plate (101), the pull rod limiting block (22) is integrally injection molded with the rear cover plate (102), and the connecting auxiliary support (23), the connecting rod limiting block (24) and the scissor fork fixing block (26) are all integrally injection molded with the barrel body (104).

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