Push head mechanism for preventing garbage back and household garbage compressor

Abstract

The application discloses a pushing head mechanism for preventing garbage from being brought back and a household garbage compressor in the technical field of household garbage transfer mechanical equipment. The pushing head mechanism comprises a pushing head body, a first sealing mechanism and a second sealing mechanism. The first sealing mechanism is installed on the two side edges and the bottom edge of the pushing head body. The second sealing mechanism is arranged on one side of the feeding port away from the discharging port. The pushing head mechanism for preventing garbage from being brought back is provided for the relationship between the pushing head mechanism and the compression cavity. Different first sealing mechanisms and second sealing mechanisms are arranged around the pushing head mechanism. The gaps between the periphery of the pushing head and the compression cavity can be sealed, so that the fine garbage is prevented from being brought back to the rear support from the periphery gaps.

Description

Technical Field

[0001] This invention relates to the field of municipal solid waste transfer machinery and equipment, specifically to a pusher mechanism and a municipal solid waste compressor that prevent waste from being carried back. Background Technology

[0002] The horizontal split-type household waste compressor is divided into two parts along its length: a compression chamber and a rear support. Its working principle relies on the reciprocating motion of the pusher mechanism to compress and reduce the volume of loose waste poured into the compression chamber from the collection vehicle, thereby achieving efficient transfer. Since the pusher mechanism is a moving mechanism, there is relative motion between it and the compression chamber. Therefore, a reasonable clearance must be set between the two to ensure that the pusher mechanism can smoothly perform reciprocating compression actions.

[0003] However, due to the existence of the gap, during the reciprocating compression process of the pusher, some fine debris will adhere to the surface around the pusher and be carried back to the rear support by the pusher. As the pusher moves forward to compress the debris, the newly poured loose debris into the compression chamber will push the fine debris originally attached to the pusher backward, causing the fine debris to fall off at the rear support.

[0004] The pusher head mainly contacts the inner wall of the compression chamber through the slider. During long-term operation, the slider gradually wears down, which gradually increases the clearance between the two. More fine debris is carried back to the rear support around the pusher head, and problems such as unstable pusher head movement and increased noise will occur. Over time, excessive debris accumulates at the rear support of the compressor.

[0005] The rear support structure is often quite complex, housing the compressor's cylinders, valve assemblies, sensors, hydraulic circuits, and electrical wiring harnesses. Accumulation of waste here can affect the cleanliness of the hydraulic circuits and the accuracy of sensor detection. For example: ① Contamination of the hydraulic circuits can lead to valve blockage, cylinder scratches, and internal leakage; ② Waste obstruction can prevent proximity switches and laser rangefinders from detecting the pusher's movement, causing malfunctions and equipment shutdowns. These downtimes, maintenance, and component replacements severely impact the efficiency of the municipal solid waste transfer station and increase the workload of station staff.

[0006] The fine garbage mixed with leachate is highly adhesive, and because there are many components on the rear support and the space is cramped, it is very difficult for cleaning staff to enter and exit to clean it. When the garbage accumulates to a certain amount, it will also cause a foul odor around the compressor and attract harmful mosquitoes.

[0007] Therefore, in the field of municipal solid waste compressor technology, how to effectively reduce the amount of fine waste carried back to the rear support of the compressor is a technical problem that urgently needs to be solved. Summary of the Invention

[0008] The purpose of this invention is to overcome the shortcomings of the prior art and provide a pusher mechanism and a municipal solid waste compressor that prevents waste from being carried back. The gaps between the pusher and the compression chamber are sealed to the greatest extent possible, so as to avoid fine waste being carried back to the rear support from the gaps around the pusher. At the same time, the convenience of installing, disassembling, maintaining and replacing the slider is taken into consideration, so that the operation response can be quick when replacement is needed, and the decrease in the transfer efficiency within the station caused by maintenance downtime is reduced.

[0009] To achieve the above objectives, the present invention is implemented using the following technical solution:

[0010] In a first aspect, the present invention provides a pusher mechanism to prevent waste re-tracing, the pusher mechanism being confined within a compression chamber, the top of which is provided with a feeding port; and...

[0011] The pusher mechanism includes:

[0012] The main body of the pusher head;

[0013] The first sealing mechanism includes a first prestressing mechanism and a first slider. The first prestressing mechanism is installed on both sides and the bottom side of the pusher body, and the first slider is installed on the outside of the first prestressing mechanism relative to the pusher body.

[0014] The second sealing mechanism includes a second prestressing mechanism and a second slider. The second prestressing mechanism is located on the side of the feeding port away from the discharge port, and the second slider is mounted on the second prestressing mechanism.

[0015] Both the first and second sliders are used to fill the gap between the sealing pusher body and the compression chamber.

[0016] Furthermore, the first prestressing mechanism includes:

[0017] The limiting seats are disposed on both sides and the bottom side of the pusher body, including a first fixed limiting seat, a second fixed limiting seat and a movable limiting seat. The first fixed limiting seat and the second fixed limiting seat are parallel to each other and fixedly connected to the pusher body. The movable limiting seat is detachably connected to the first fixed limiting seat and the second fixed limiting seat. A first opening is provided between the first fixed limiting seat and the movable limiting seat, and a second opening is provided between the second fixed limiting seat and the movable limiting seat.

[0018] A pushing mechanism includes a push plate and a push rod, wherein the push rod is perpendicular to the push plate and fixedly connected to the push plate, and the push rod is installed in a first opening and a second opening;

[0019] The first spring is sleeved on the outside of the push rod, with one end abutting against the push plate and the other end abutting against the outer contour of the second opening;

[0020] The first fastening mechanism is installed at the free end of the push rod, located on the side of the second opening away from the first opening, and is used to apply preload to the first spring;

[0021] Furthermore, the second prestressing mechanism includes:

[0022] The mounting base is installed on the side of the feeding port away from the discharge port, and includes a mounting plate and a support rod. The support rod is fixed to the top of the mounting plate perpendicularly. The second sealing mechanism is installed on the compression chamber through the mounting plate.

[0023] A spring limiting plate is installed on the top of the mounting base. The spring limiting plate has a through hole through which the support rod passes.

[0024] The second spring is sleeved on the outside of the support rod, with one end abutting against the mounting plate and the other end abutting against the bottom of the spring limiting plate;

[0025] The second fastening mechanism is installed at the free end of the support rod, located at the top of the spring limiting plate, and is used to apply preload to the second spring.

[0026] Furthermore, the mounting plate includes a base plate, a pressure plate, and fasteners; the second slider is clamped between the base plate and the pressure plate and fixed by the fasteners.

[0027] Furthermore, it also includes a support base for installing the second prestressing mechanism; the support base is an L-shaped support base, one end of which is connected to the inside of the top of the compression chamber, located on the side of the feeding port away from the discharge port, and the other end is connected to the side of the spring limiting plate.

[0028] Furthermore, the first and second fastening mechanisms are limit nuts.

[0029] Furthermore, the first and second sliders are made of nylon or high molecular weight polyethylene.

[0030] Secondly, the present invention provides a method for replacing the pusher mechanism, specifically a method for replacing the first slider, comprising: removing the movable limiting seat from the first fixed limiting seat and the second fixed limiting seat, tightening the first fastening mechanism, pulling the push plate away from the inner wall of the compression chamber, pulling the old slider out from between the push plate and the inner wall of the compression chamber, then placing the new slider in, and then sequentially installing the disassembled mechanisms to complete the replacement of the first slider.

[0031] Thirdly, the present invention provides a method for replacing the pusher mechanism, specifically a method for replacing the second slider, comprising: fastening the second fastening mechanism, pulling the mounting base close to the spring limiting plate to disengage the second slider from the upper surface of the pusher body, removing the pressure plate, taking out the old slider, placing the new slider into the groove reserved on the upper side plate of the compression chamber, reinstalling the pressure plate, and completing the replacement of the second slider.

[0032] Fourthly, the present invention provides a municipal solid waste compressor, characterized in that it includes the aforementioned pusher mechanism.

[0033] Compared with the prior art, the beneficial effects achieved by the present invention are as follows:

[0034] The pusher mechanism for preventing waste backflow provided by the present invention, by setting different first sealing mechanisms and second sealing mechanisms around the pusher mechanism according to the relationship between the pusher mechanism and the compression chamber, can seal the gaps between the pusher and the compression chamber around the pusher, thereby minimizing the risk of fine waste being carried back to the rear support from the gaps around the pusher.

[0035] The present invention provides a pusher mechanism for preventing waste backflow. The first sealing mechanism includes a first prestressing mechanism and a first slider, and the second sealing mechanism includes a second prestressing mechanism and a second slider. The slider is made of nylon or high molecular weight polyethylene. By utilizing the self-compensating characteristics of elastic elements, the service life of the slider is greatly extended. Even when the wear of the slider is relatively small, it can still abut against the inner wall of the compression chamber under the action of elastic force.

[0036] The pusher mechanism for preventing waste backflow provided by this invention also takes into account the ease of installation, disassembly, maintenance and replacement of the slider, so that it can be operated and responded quickly when replacement is needed, reducing the decrease in in-station transfer efficiency caused by maintenance downtime. Attached Figure Description

[0037] Figure 1 This is a schematic diagram of the assembly of the first sealing mechanism provided in an embodiment of the present invention on the pusher body;

[0038] Figure 2 This is an exploded view of the structure of the first sealing mechanism provided in an embodiment of the present invention;

[0039] Figure 3 This is a cross-sectional view of the first sealing mechanism at a first angle provided in an embodiment of the present invention;

[0040] Figure 4 This is a cross-sectional view of the first sealing mechanism provided in an embodiment of the present invention from a second angle;

[0041] Figure 5 This is an assembly drawing of the limiting seat, pushing mechanism, first spring, and first fastening mechanism provided in the embodiments of the present invention;

[0042] Figure 6 This is a schematic diagram of the assembly of the second sealing mechanism at the feeding port according to an embodiment of the present invention;

[0043] Figure 7 This is a schematic diagram of the structure of the second sealing mechanism provided in an embodiment of the present invention;

[0044] Figure 8 This is a cross-sectional view of the second sealing mechanism provided in an embodiment of the present invention;

[0045] Figure 9 This is a schematic diagram of the structure of a municipal solid waste compressor provided in an embodiment of the present invention.

[0046] In the diagram: 1. Push head body; 2. First slider; 3. Second slider; 4. Limiting seat; 5. First fixed limiting seat; 6. Second fixed limiting seat; 7. Movable limiting seat; 8. First opening; 9. Second opening; 10. Push plate; 11. Push rod; 12. First spring; 13. First fastening mechanism; 14. Mounting seat; 15. Mounting plate; 16. Support rod; 17. Spring limiting plate; 18. Second spring; 19. Second fastening mechanism; 20. Base plate; 21. Pressure plate; 22. Fastener; 23. Support seat; 24. First sealing mechanism; 25. Second sealing mechanism. Detailed Implementation

[0047] The present invention will be further described below with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and should not be used to limit the scope of protection of the present invention.

[0048] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0049] The following detailed description of some embodiments of the present invention is provided in conjunction with the accompanying drawings. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0050] like Figure 1 As shown, one embodiment of the present invention provides a pusher mechanism to prevent waste from being carried back. The pusher mechanism is confined within a compression chamber. Initially, the pusher mechanism is located on one side of the compression chamber, and a discharge port is provided on the other side of the compression chamber. The pusher mechanism reciprocates between the initial position and the discharge port. A feeding port is provided at the top of the compression chamber away from the discharge port.

[0051] The pusher mechanism for preventing waste re-tracing includes: a pusher body 1; a first sealing mechanism 24, including a first prestressing mechanism and a first slider 2, as shown below. Figure 1As shown, the first prestressing mechanism is installed on both sides and the bottom edge of the pusher body 1, and the first slider 2 is installed on the outside of the first prestressing mechanism relative to the pusher body 1; the second sealing mechanism 25 includes a second prestressing mechanism and a second slider 3, the second prestressing mechanism is located on the side of the feeding port away from the discharge port, and the second slider 3 is installed on the second prestressing mechanism. Both the first slider 2 and the second slider 3 are used to fill and seal the gap between the pusher body 1 and the compression chamber.

[0052] like Figures 2-5 As shown, in one embodiment of the present invention, the first prestressing mechanism includes: a limiting seat 4, disposed on both sides and the bottom side of the pusher body 1, including a first fixed limiting seat 5, a second fixed limiting seat 6, and a movable limiting seat 7. The first fixed limiting seat 5 and the second fixed limiting seat 6 are parallel to each other and fixedly connected to the pusher body 1. The movable limiting seat 7 is detachably connected to the first fixed limiting seat 5 and the second fixed limiting seat 6. A first opening 8 is provided between the first fixed limiting seat 5 and the movable limiting seat 7, and a second opening 9 is provided between the second fixed limiting seat 6 and the movable limiting seat 7; and a pushing mechanism, including a push plate 10 and a push rod 11. The push rod 11 is perpendicular to the push plate 10 and is fixedly connected to the push plate 10. The push rod 11 is installed in the first opening 8 and the second opening 9. The first spring 12 is sleeved on the outside of the push rod 11, with one end abutting against the push plate 10 and the other end abutting against the outer contour of the second opening 9. The diameter of the first opening 8 is larger than the diameter of the first spring 12, and the diameter of the second opening 9 is smaller than the diameter of the first spring 12. The first opening 8 and the push rod 11 guide the first spring 12 to prevent it from swaying. The first fastening mechanism 13 is installed at the free end of the push rod 11 and is located on the side of the second opening 9 away from the first opening 8. It is used to apply a preload to the first spring 12.

[0053] One end of the first spring 12 is fixedly positioned outside the second opening 9, and the other end abuts against the push plate 10. Under the action of the elastic force of the first spring 12, the push plate 10 can push the first slider 2, which always abuts against the inner wall of the compression chamber, preventing fine debris from adhering to the surface of the push head and being carried back to the rear support.

[0054] Furthermore, the first sealing mechanism 24 provided in this embodiment of the invention facilitates the disassembly of the slider. The replacement method is as follows: after removing the fixing bolts between the first fixed limiting seat 5, the second fixed limiting seat 6 and the movable limiting seat 7, the movable limiting seat 7 can be easily removed. Then, by using the first fastening mechanism 13 on the fastening push plate 10, the push plate 10 is retracted to the side away from the inner wall of the compression chamber. The old slider is pulled out from between the push plate 10 and the inner wall of the compression chamber, and then a new slider is placed in. Then, the disassembled mechanisms are reinstalled in sequence.

[0055] like Figure 6 and Figure 7As shown, in one embodiment of the present invention, the second prestressing mechanism includes:

[0056] Mounting base 14, installed on the side of the feeding port away from the discharge port, includes mounting plate 15 and support rod 16. The support rod 16 is fixed to the top of the mounting plate 15 perpendicular to it. The second sealing mechanism 25 is installed on the compression chamber through the mounting plate 15. Spring limiting plate 17 is installed on the top of mounting base 14. A through hole is provided on the spring limiting plate 17, through which the support rod 16 passes. Second spring 18 is sleeved on the outside of support rod 16, with one end abutting against the mounting plate 15 and the other end abutting against the bottom of spring limiting plate 17. Second fastening mechanism 19 is installed on the free end of the support rod 16, located on the top of spring limiting plate 17, and is used to apply preload to the second spring 18.

[0057] One end of the second spring 18 is limited by the spring limiting plate 17, and the other end pushes the mounting base 14, so that the second slider 3 can always abut against the upper surface of the pusher body 1 under the action of elastic force, preventing fine garbage from adhering to the upper surface of the pusher body 1 and being carried back to the rear support (the gap between the upper surface of the pusher and the inner wall of the compression chamber is relatively large compared with the other three surfaces. When the collection vehicle feeds material, the loose garbage falls and contacts the upper surface of the pusher first. Therefore, the possibility of fine garbage being carried back to the rear support from the upper part of the pusher is the greatest).

[0058] like Figure 8 As shown, the mounting plate 15 includes a base plate 20, a pressure plate 21, and a fastener 22; the second slider 3 is clamped between the base plate 20 and the pressure plate 21 and is fixed by the fastener 22.

[0059] In one embodiment of the present invention, a support base 23 is further included for mounting the second prestressing mechanism; the support base 23 is an L-shaped support base 23, one end of which is connected to the inside of the top of the compression chamber, located on the side of the feeding port away from the discharge port, and the other end is connected to the side of the substrate 20.

[0060] The second prestressing mechanism provided in this embodiment of the invention allows for the replacement of the second slider 3 without disassembling the second sealing mechanism 25. The steps are as follows:

[0061] a. Tighten the second fastening mechanism 19 to increase the compression of the second spring 18. The mounting base 14 and the second slider 3 retract upward together, and the second slider 3 disengages from the upper surface of the push head body 1.

[0062] b. Remove the pressure plate 21 and take out the second slider 3;

[0063] c. A groove is reserved on the upper side plate of the compression chamber. When the second sealing mechanism 25 is working, the second slider 3 presses on the push head body 1 through the groove. The width of the groove is greater than the width of the second slider 3. The new slider can be tilted down into the groove. After the slider is placed, the pressure plate 21 is reinstalled to complete the replacement of the new slider.

[0064] In one embodiment of the present invention, the first fastening mechanism 13 and the second fastening mechanism 19 are limiting nuts, and the first slider 2 and the second slider 3 are made of nylon or high molecular weight polyethylene.

[0065] like Figure 9 As shown, one embodiment of the present invention also provides a municipal solid waste compressor, including a pusher mechanism as provided in the embodiment of the present invention to prevent waste from being carried back.

[0066] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only used to explain the relative positional relationship and movement between components in a specific posture. If the specific posture changes, the directional indication will also change accordingly. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0067] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art will understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0068] The embodiments of the present invention have been described above with reference to the accompanying drawings. However, the present invention is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of the present invention without departing from the spirit and scope of the claims. All of these forms are within the protection scope of the present invention.

Claims

1. A pusher mechanism for preventing waste re-tracing, characterized in that, The pusher mechanism is confined within the compression chamber. Initially, the pusher mechanism is located on one side of the compression chamber, and a discharge port is provided on the other side of the compression chamber. The pusher mechanism reciprocates between the initial position and the discharge port. A feeding port is provided at the top of the compression chamber, away from the discharge port; and... The pusher mechanism includes: Push head body (1); The first sealing mechanism (24) includes a first prestressing mechanism and a first slider (2). The first prestressing mechanism is installed on both sides and the bottom side of the pusher body (1), and the first slider (2) is installed on the outside of the first prestressing mechanism relative to the pusher body (1). The second sealing mechanism (25) includes a second prestressing mechanism and a second slider (3). The second prestressing mechanism is located on the side of the feeding port away from the discharge port, and the second slider (3) is mounted on the second prestressing mechanism. The first slider (2) and the second slider (3) are both used to fill the gap between the sealing pusher body (1) and the compression chamber; The first prestressing mechanism includes: The limiting seat (4) is provided on both sides and the bottom side of the pusher body (1), including a first fixed limiting seat (5), a second fixed limiting seat (6) and a movable limiting seat (7). The first fixed limiting seat (5) and the second fixed limiting seat (6) are parallel to each other and fixedly connected to the pusher body (1). The movable limiting seat (7) is detachably connected to the first fixed limiting seat (5) and the second fixed limiting seat (6). A first opening (8) is provided between the first fixed limiting seat (5) and the movable limiting seat (7), and a second opening (9) is provided between the second fixed limiting seat (6) and the movable limiting seat (7). The pushing mechanism includes a push plate (10) and a push rod (11). The push rod (11) is perpendicular to the push plate (10) and is fixedly connected to the push plate (10). The push rod (11) is installed in the first opening (8) and the second opening (9). The first spring (12) is sleeved on the outside of the push rod (11), with one end abutting against the push plate (10) and the other end abutting against the outer contour of the second opening (9); The first fastening mechanism (13) is installed at the free end of the push rod (11) on the side of the second opening (9) away from the first opening (8) and is used to apply preload to the first spring (12).

2. The pusher mechanism according to claim 1, characterized in that, The second prestressing mechanism includes: Mounting base (14) is installed on the side of the feeding port away from the discharge port, including mounting plate (15) and support rod (16). The support rod (16) is fixed to the top of the mounting plate perpendicular to the mounting plate (15). The second sealing mechanism (25) is installed on the compression chamber through the mounting plate (15). A spring limiting plate (17) is installed on the top of the mounting base (14). A through hole is provided on the spring limiting plate (17), and the support rod (16) passes through the through hole. The second spring (18) is sleeved on the outside of the support rod (16), with one end abutting against the mounting plate (15) and the other end abutting against the bottom of the spring limiting plate (17); The second fastening mechanism (19) is installed at the free end of the support rod (16) and located on top of the spring limiting plate (17) to apply preload to the second spring (18).

3. The pusher mechanism according to claim 2, characterized in that: The mounting plate (15) includes a base plate (20), a pressure plate (21), and fasteners (22); The second slider (3) is held between the substrate (20) and the pressure plate (21) and is fixed by fasteners (22).

4. The pusher mechanism according to claim 3, characterized in that: Also includes: Support base (23) is used to install the second prestressing mechanism; The support base (23) is an L-shaped support base (23), with one end connected to the inside of the top of the compression chamber, located on the side of the feeding port away from the discharge port, and the other end connected to the side of the spring limiting plate (17).

5. The pusher mechanism according to claim 2, characterized in that: The first fastening mechanism (13) and the second fastening mechanism (19) are limit nuts.

6. The pusher mechanism according to claim 1, characterized in that: The first slider (2) and the second slider (3) are made of nylon or high molecular weight polyethylene.

7. A method for changing components in the pusher mechanism as described in claim 1, characterized in that, The method for replacing the first slider (2) includes: removing the movable limiting seat (7) from the first fixed limiting seat (5) and the second fixed limiting seat (6), tightening the first fastening mechanism (13), pulling the push plate (10) away from the inner wall of the compression chamber, pulling the old slider out from between the push plate (10) and the inner wall of the compression chamber, then putting in the new slider, and then installing the disassembled mechanisms in sequence to complete the replacement of the first slider (2).

8. A method for replacing components in a pusher mechanism as described in any one of claims 2-5, characterized in that, The method for replacing the second slider (3) includes: tightening the second fastening mechanism (19), pulling the mounting base (14) close to the spring limiting plate (17) to make the second slider (3) separate from the upper surface of the pusher body (1), removing the pressure plate (21), taking out the old slider, putting the new slider into the groove reserved on the upper side plate of the compression chamber, reinstalling the pressure plate (21), and completing the replacement of the second slider (3).

9. A household waste compactor, characterized in that: Includes the pusher mechanism as described in any one of claims 1-6.

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