A trash can pushing device for an underground station

Abstract

The present invention discloses a trash can pushing device for a buried station. Through the coordinated movement of an electric push rod, a flipping linkage mechanism, a sliding pushing mechanism, and a flipping baffle, by controlling the extension and retraction operations of the electric push rod, it is realized to drive the sliding pushing mechanism to move back and forth by pushing the flipping linkage mechanism. Furthermore, under the limiting effect of the fixed baffle and the flipping baffle on the trash can, the sliding pushing mechanism performs the operations of pushing out and pulling back the trash can, avoiding the situation where staff members stretch their arms into the buried station to pull out or put back the trash can, eliminating the occurrence of safety accidents caused by buried station failures. And for trash cans with excessive weight, pulling them out in this way can also facilitate the staff to adopt a better posture to pull the trash can, which is relatively labor-saving, thus also avoiding the shaking of the internal structure of the buried station to a certain extent.

Description

Technical Field

[0001] The present application relates to the technical field of garbage disposal devices, and in particular to a garbage bin pushing device for underground stations. Background Art

[0002] An underground station refers to a device in which the entire equipment is hidden underground for garbage disposal. This equipment is a domestic garbage collection, transfer and transportation equipment that integrates closed, environmentally friendly and efficient features. It solves the problems of odor, bad taste, mosquito and fly breeding, etc. that exist in the open operation mode of traditional garbage compressors.

[0003] In the existing underground stations, the various garbage bins for placing different types of garbage are usually placed directly on the placement platform inside the underground station. When the staff collects and transports the garbage placed in the underground station, they need to control the underground station through a controller to make the placement platform in the underground station rise to the same level as the ground. Then the staff directly reach out to pull out the various garbage bins from the placement platform, and then collect and clean the garbage. In the process of pulling out the garbage bins, the staff will reach into the underground station. If the lifting structure of the underground station fails and is damaged at this time, it may cause the raised underground station to fall directly, which will pose a great safety hazard to the personal safety of the staff. Moreover, when the weight of the garbage in the garbage bin is too heavy, since the garbage bin is located inside the underground station, it is inconvenient for the staff to adopt a better posture to pull the garbage bin with force, which is very laborious. In this case, the staff will usually pull the garbage bin with force many times, which will cause the garbage bin to shake many times, and then cause the placement platform in the underground station to shake, which will have a certain impact on the structural stability of the underground station. Summary of the Invention

[0004] In view of the shortcomings of the prior art, the present invention aims to provide a trash can pushing device for an underground station to solve the problems raised in the above background technology.

[0005] According to one aspect of the present application, a trash can pushing device for an underground station includes a base plate, a fixed seat, an electric push rod, a flip linkage mechanism, a sliding pushing mechanism, a pre-tightening guide mechanism, an auxiliary traction mechanism and a locking mechanism. A fixed seat is fixedly provided at one end of the middle portion of the upper surface of the base plate, the fixed seat is rotatably connected to the fixed end of the electric push rod, the extended end of the electric push rod is hinged to the middle portion of the flip linkage mechanism, the middle portions of both sides of the flip linkage mechanism are rotatably connected to the sliding pushing mechanism, the lower positions of both sides of the flip linkage mechanism are respectively hinged to one end of the two connecting rods, the other ends of the two connecting rods are respectively hinged to the bottom of one side of the two flip baffles close to the connecting rod, and the middle portions of one side of the two flip baffles close to the connecting rod are both hinged to one end of the sliding pushing mechanism close to the extended end of the electric push rod;

[0006] In the state where the electric push rod is fully retracted, both sides of the middle part of the sliding and pushing mechanism are in sliding contact connection with the pre-tightening and guiding mechanism. The bottom of the pre-tightening and guiding mechanism is fixedly arranged on the bottom plate. On both sides of the top surface of the middle part of the sliding and pushing mechanism near the position of the flipping baffle, auxiliary traction mechanisms are symmetrically arranged. The two auxiliary traction mechanisms are respectively connected to the upper positions on both sides of the flipping linkage mechanism. And on the sliding and pushing mechanism at the position of the auxiliary traction mechanism, two limit blocks for restricting the flipping amplitude of the flipping linkage mechanism are fixedly arranged. The two locking mechanisms are symmetrically arranged on the bottom plate, and each locking mechanism is directly opposite to the outside of the position where the flipping linkage mechanism is hinged to the connecting rod.

[0007] Preferably, the flipping linkage mechanism includes a connecting push plate, a U-shaped plate, a connecting shaft and a linkage plate. The upper end of the connecting push plate is hinged to the extending end of the electric push rod. The lower end of the connecting push plate is fixedly arranged at the inner bottom of the U-shaped plate. At the upper positions of the two side plates of the U-shaped plate, connecting shafts are fixedly arranged. Each connecting shaft extends towards the outside of the U-shaped plate and is fixedly arranged in the middle of the linkage plate. And each connecting shaft passes through the linkage plate and is rotationally connected to the sliding and pushing mechanism. At the upper position of the linkage plate, a connecting slider is fixedly arranged. The connecting slider is slidably placed in the auxiliary traction mechanism. At the lower position of the linkage plate, it is hinged to one end of the connecting rod through a hollow short shaft.

[0008] Preferably, the position height of the connection between the connecting push plate and the extending end of the electric push rod is higher than the position height of the connecting shaft. The position height of the connection between the connecting push plate and the inner bottom of the U-shaped plate is lower than the position height of the connecting shaft. And the connection between the electric push rod and the connecting push plate arches upwards and the included angle formed by the two is an obtuse angle.

[0009] Preferably, the sliding and pushing mechanism includes sliding rods and fixed baffles. The two sliding rods are symmetrically arranged on both sides of the electric push rod. One ends of the two sliding rods close to the extending end of the electric push rod are respectively hinged to the middle parts of the two flipping baffles. At the upper parts of one ends of the two sliding rods close to the fixed end of the electric push rod, fixed baffles are vertically fixedly arranged. The fixed baffles and the flipping baffles are used for fixedly limiting the trash can. In the state where the electric push rod is fully retracted, the middle parts of the two sliding rods are in sliding contact connection with the pre-tightening and guiding mechanism. On the top surface of the middle part of each sliding rod near the position of the flipping baffle, auxiliary traction mechanisms are arranged. And on the sliding rod at the position of the auxiliary traction mechanism, two limit blocks for restricting the rotation amplitude of the linkage plate are fixedly arranged. And the side surface of the sliding rod between the two limit blocks is rotationally connected to the connecting shaft.

[0010] Preferably, a first electromagnet is embedded in the middle of the fixed baffle, and the working surface of the first electromagnet is flush with the surface of the fixed baffle facing the flipping baffle. An iron plate is embedded on the surface of the trash can opposite to the fixed baffle, and the setting position of the iron plate corresponds to the setting position of the first electromagnet. And when fixedly limiting the trash can, both the fixed baffle and the flipping baffle are in contact with the side surface of the trash can.

[0011] Preferably, the two pre-tightening guiding mechanisms are symmetrically arranged on both sides of the electric push rod. The pre-tightening guiding mechanism includes an upper fixed cross plate, a lower fixed cross plate, a guiding plate and a side plate. The side plate is vertically fixed on the bottom plate along the telescopic direction of the electric push rod. An upper fixed cross plate and a lower fixed cross plate are symmetrically arranged up and down on the surface of the side plate close to the electric push rod. At least one fixing nut is fixedly arranged on the upper surface of the upper fixed cross plate and the lower surface of the lower fixed cross plate. At least one adjusting bolt is arranged above the upper fixed cross plate and below the lower fixed cross plate, and the adjusting bolts are respectively threadedly connected with the fixing nuts. The adjusting bolts distributed up and down respectively penetrate through the upper fixed cross plate and the lower fixed cross plate and are respectively rotatably connected with the two guiding plates. The opposite surfaces of the two guiding plates are in sliding contact connection with the surface of the sliding rod. A plurality of lower supporting plates are arranged on the bottom surface of the lower fixed cross plate, and a plurality of upper supporting plates are arranged on the top surface of the upper fixed cross plate. The lower supporting plates and the upper supporting plates are both fixedly connected with the side plate.

[0012] Preferably, the auxiliary traction mechanism includes a first support platform, a second support platform, a fixed box, an arc-shaped slide rail, a first traction electromagnet, a second traction electromagnet, a first traction block, a second traction block, a first traction spring and a second traction spring. The first support platform and the second support platform are symmetrically arranged on the upper surface of the middle part of the sliding rod near the position of the flipping baffle. Fixed boxes are fixedly arranged on the opposite surfaces of the first support platform and the second support platform. A first traction electromagnet is fixedly arranged in the fixed box on the first support platform, and a second traction electromagnet is fixedly arranged in the fixed box on the second support platform. An arc-shaped slide rail is fixedly arranged between the two fixed boxes. Both ends of the arc-shaped slide rail are communicated with the fixed boxes, and the working surfaces of the first traction electromagnet and the second traction electromagnet both face the arc-shaped slide rail. The connecting slider is slidably placed in the arc-shaped slide rail, and the arc center point of the arc-shaped slide rail coincides with the rotation center point of the linkage plate. One end of a first traction spring is fixedly connected to the side of the connecting slider close to the first traction electromagnet, and a first traction block is fixedly arranged at the other end of the first traction electromagnet. One end of a second traction spring is fixedly connected to the side of the connecting slider close to the second traction electromagnet, and a second traction block is fixedly arranged at the other end of the second traction spring. Both the first traction block and the second traction block can slide in the arc-shaped slide rail.

[0013] Preferably, the first support platform is located at the rotation position of the linkage plate when the flipping baffle is erected, and the second support platform is located at the rotation position of the linkage plate when the flipping baffle is laid flat. Among them, when the flipping baffle is erected, the linkage plate rotates and contacts a limit block, and when the flipping baffle is laid flat, the linkage plate rotates and contacts another limit block.

[0014] Preferably, the locking mechanism includes a mounting plate, a second electromagnet, a locking plate, a locking pin shaft, a pressing plate, a fixed cylinder, a locking spring and a vertical plate. The mounting plate and the vertical plate are vertically and fixedly arranged side by side on the bottom plate along the width direction of the bottom plate, and both the mounting plate and the vertical plate are arranged on both sides of the flipping linkage mechanism. The mounting plate is arranged away from the flipping linkage mechanism, and the vertical plate is arranged close to the flipping linkage mechanism. A fixed cylinder is fixedly arranged at the upper end of the vertical plate. A locking pin shaft is slidably arranged through the middle of the fixed cylinder. The sliding direction of the locking pin shaft is consistent with the side-by-side arrangement direction of the mounting plate and the vertical plate. A pressing plate is fixedly arranged on the locking pin shaft, and the pressing plate is slidably placed in the fixed cylinder. A locking spring is fixedly arranged between the side of the pressing plate away from the mounting plate and the side wall of the fixed cylinder away from the mounting plate. A locking plate is fixedly arranged at one end of the locking pin shaft close to the mounting plate. A second electromagnet is fixedly arranged on one side surface of the mounting plate close to the vertical plate. The setting position of the second electromagnet corresponds to the setting position of the locking plate. Among them, when the electric push rod is fully retracted, the central axis of the locking pin shaft coincides with the central axis of the hollow short shaft. When the second electromagnet is attracted and attached to the locking plate, the locking spring is in a stretched state and the end of the locking pin shaft does not exceed the end of the fixed cylinder.

[0015] An underground station is provided with a trash can pushing device for the underground station installed therein.

[0016] A trash can pushing device for a buried station of the present application, through the coordinated movement of an electric push rod, a flipping linkage mechanism, a sliding pushing mechanism, and a flipping baffle, enables, by controlling the extension and contraction operations of the electric push rod, the flipping linkage mechanism to be driven to drive the sliding pushing mechanism to move back and forth. Then, under the limiting action of a fixed baffle and the flipping baffle on the trash can, the sliding pushing mechanism performs the operations of pushing out and pulling back the trash can, thereby preventing staff from reaching their arms into the buried station to pull out or put back the trash can, eliminating the occurrence of safety accidents caused by buried station failures. Moreover, for a trash can with an excessive weight, pulling it out in this way also enables the staff to adopt a better posture to pull the trash can, which is relatively labor-saving, and thus also avoids the shaking of the internal structure of the buried station to a certain extent. The flipping linkage mechanism is rotationally connected to a sliding rod through a connecting shaft, connected to the flipping baffle through a connecting rod, and the sliding rod is connected to the flipping baffle. When the electric push rod extends, it drives the flipping linkage mechanism to rotate, and then pulls the flipping baffle to rotate around the end of the sliding rod to a flat state through the connecting rod. At the same time, the sliding pushing mechanism drives the trash can to be pushed out, so that the limiting state of the trash can can be released when the trash can is pushed out, facilitating the staff to directly pull out the trash can, which is relatively convenient and fast. And after the staff puts a new trash can back, by controlling the contraction of the electric push rod, the flipping linkage mechanism is pulled to rotate in the reverse direction, and then the flipping baffle is pushed to rotate around the end of the sliding rod in the reverse direction to a standing state, so that the trash can can be re-limited when the trash can needs to be pulled back, facilitating the pulling-back operation of the trash can. Through the setting of a locking mechanism, when the trash can is pulled back to its original position, the flipping linkage mechanism can be locked, thereby preventing the flipping linkage mechanism from rotating under the action of external force and affecting the stability of the trash can. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 FIG. is a schematic structural diagram of a trash can pushing device for a buried station according to an embodiment of the present application.

[0018] Figure 2 is Figure 1 an enlarged schematic structural diagram of part A in FIG.

[0019] Figure 3 FIG. is a schematic structural diagram of another perspective of a trash can pushing device for a buried station according to an embodiment of the present application.

[0020] Figure 4 is Figure 3 an enlarged schematic structural diagram of part B in FIG.

[0021] Figure 5 FIG. is a partial cross-sectional view of a trash can pushing device for a buried station according to an embodiment of the present application.

[0022] Figure 6 It is a schematic diagram of a partial structure of a trash can pushing device for a buried station according to an embodiment of the present application.

[0023] Figure 7 It is a schematic diagram of pulling back a trash can by a trash can pushing device for a buried station according to an embodiment of the present application.

[0024] Figure 8 It is a schematic diagram of pushing out a trash can by a trash can pushing device for a buried station according to an embodiment of the present application.

[0025] Figure 9 It is an application schematic diagram of a trash can pushing device for a buried station according to an embodiment of the present application.

[0026] Reference numerals: 1, bottom plate; 2, fixed seat; 3, electric push rod; 4, flipping linkage mechanism; 5, sliding pushing mechanism; 6, pre-tightening guiding mechanism; 7, auxiliary traction mechanism; 8, locking mechanism; 9, connecting rod; 10, flipping baffle; 11, limiting block; 12, connecting push plate; 13, U-shaped plate; 14, connecting shaft; 15, linkage plate; 16, connecting slider; 17, hollow short shaft; 18, sliding rod; 19, fixed baffle; 20, first electromagnet; 21, iron plate; 22, upper fixed cross plate; 23, lower fixed cross plate; 24, guiding plate; 25, side plate; 26, fixing nut; 27, adjusting bolt; 28, first support platform; 29, second support platform; 30, fixed box; 31, arc-shaped slide rail; 32, first traction electromagnet; 33, second traction electromagnet; 34, first traction block; 35, second traction block; 36, first traction spring; 37, second traction spring; 38, mounting plate; 39, second electromagnet; 40, locking plate; 41, locking pin shaft; 42, pressing plate; 43, fixed cylinder; 44, locking spring; 45, vertical plate; 46, trash can; 47, buried station. Detailed implementation manners

[0027] In order to make the content of the present application easier to be clearly understood, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present application. It should be noted that the words "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to the directions in the drawings, and the words "inner" and "outer" respectively refer to the directions towards or away from the geometric center of a specific component. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0028] As Figures 1 to 6As shown in the figure, a trash can pushing device for an underground station includes a bottom plate 1, a fixed seat 2, an electric push rod 3, a flipping linkage mechanism 4, a sliding pushing mechanism 5, a pre-tightening guiding mechanism 6, an auxiliary traction mechanism 7, and a locking mechanism 8. One end of the middle part of the upper surface of the bottom plate 1 is fixedly provided with a fixed seat 2. The fixed seat 2 is rotatably connected to the fixed end of the electric push rod 3. The extending end of the electric push rod 3 is hinged to the middle part of the flipping linkage mechanism 4. The middle parts of both sides of the flipping linkage mechanism 4 are rotatably connected to the sliding pushing mechanism 5. The lower positions of both sides of the flipping linkage mechanism 4 are respectively hinged to one ends of two connecting rods 9. The other ends of the two connecting rods 9 are respectively hinged to the bottoms of the sides of two flipping baffles 10 close to the connecting rods 9. The middle parts of the sides of the two flipping baffles 10 close to the connecting rods 9 are respectively hinged to one end of the sliding pushing mechanism 5 close to the extending end of the electric push rod 3;

[0029] In the state where the electric push rod 3 is fully retracted, both sides of the middle part of the sliding pushing mechanism 5 are in sliding contact connection with the pre-tightening guiding mechanism 6. The bottom of the pre-tightening guiding mechanism 6 is fixedly arranged on the bottom plate 1. On both sides of the top surface of the middle part of the sliding pushing mechanism 5 close to the flipping baffle 10, auxiliary traction mechanisms 7 are symmetrically arranged. The two auxiliary traction mechanisms 7 are respectively connected to the upper positions of both sides of the flipping linkage mechanism 4. And on the sliding pushing mechanism 5 at the position of the auxiliary traction mechanism 7, two limit blocks 11 for restricting the flipping amplitude of the flipping linkage mechanism 4 are fixedly arranged. The two locking mechanisms 8 are symmetrically arranged on the bottom plate 1. Each locking mechanism 8 is directly opposite to the outside of the position where the flipping linkage mechanism 4 is hinged to the connecting rod 9. On the bottom plate 1 on both sides of the pre-tightening guiding mechanism 6, limit guide rails are fixedly arranged to ensure that the trash can 46 moves along the correct path;

[0030] In this design, through the connection settings of the electric push rod 3, the flipping linkage mechanism 4, the sliding pushing mechanism 5, and the flipping baffle 10, by controlling the extension and contraction operations of the electric push rod 3, the flipping linkage mechanism 4 is driven to drive the sliding pushing mechanism 5 to move back and forth. Then, under the limiting action of the fixed baffle 19 and the flipping baffle 10 on the trash can 46, the sliding pushing mechanism 5 pushes and pulls back the trash can 46. Thus, it is not necessary for the staff to stretch their arms into the underground station 47 to pull out or put back the trash can 46, avoiding the occurrence of safety accidents due to the failure of the underground station 47. And for a trash can 46 with too large a weight, pulling it out in this way can also enable the staff to adopt a better posture to pull the trash can 46, which is more labor-saving. Thus, it also avoids the shaking of the internal structure of the underground station 47 to a certain extent. Among them, through the setting of the flipping linkage mechanism 4, when the electric push rod 3 extends, the flipping linkage mechanism 4 is pushed to rotate. Then, through the connecting rod 9, the flipping baffle 10 is pulled to rotate around the end of the sliding pushing mechanism 5 to the flat state. At the same time, the sliding pushing mechanism 5 drives the trash can 46 to be pushed out, so that the limiting state of the trash can 46 can be released when the trash can 46 is pushed out (this process is asFigure 8 As shown, it is convenient for the staff to directly pull out the trash can 46, which is relatively convenient and fast. And after the staff puts the new trash can 46 back, by controlling the electric push rod 3 to contract, the flipping linkage mechanism 4 is pulled to rotate reversely, and then the connecting rod 9 is used to push the flipping baffle 10 to rotate reversely around the end of the sliding pushing mechanism 5 to the erected state (this process is as Figure 7 shown), so that the trash can 46 can be re-limited when it needs to be pulled back, which is convenient for the pulling-back operation of the trash can 46; through the setting of the locking mechanism 8, when the trash can 46 is pulled back to its original position, the flipping linkage mechanism 4 can be locked, so as to prevent the flipping linkage mechanism 4 from rotating under the action of external force and affecting the stability of the trash can 46.

[0031] In one embodiment, in combination with Figure 2 , the flipping linkage mechanism 4 includes a connecting push plate 12, a U-shaped plate 13, a connecting shaft 14 and a linkage plate 15. The upper end of the connecting push plate 12 is hinged to the extended end of the electric push rod 3. The lower end of the connecting push plate 12 is fixedly arranged at the inner bottom of the U-shaped plate 13. Connecting shafts 14 are fixedly arranged at the upper positions of the two side plates 25 of the U-shaped plate 13. Each connecting shaft 14 extends towards the outside of the U-shaped plate 13 and is fixedly arranged in the middle of the linkage plate 15. And each connecting shaft 14 passes through the linkage plate 15 and is rotatably connected to the sliding pushing mechanism 5. A connecting slider 16 is fixedly arranged at the upper position of the linkage plate 15. The connecting slider 16 is slidably placed in the auxiliary traction mechanism 7. The lower position of the linkage plate 15 is hinged to one end of the connecting rod 9 through a hollow short shaft 17. Specifically, the position height of the connection between the connecting push plate 12 and the extended end of the electric push rod 3 is higher than the position height of the connecting shaft 14. The position height of the connection between the connecting push plate 12 and the inner bottom of the U-shaped plate 13 is lower than the position height of the connecting shaft 14. And the connection between the electric push rod 3 and the connecting push plate 12 arches upwards and the included angle formed by the two is an obtuse angle. This design enables the thrust or pulling force to have a tendency towards the upper or lower oblique direction when acting on the upper end of the connecting push rod when the electric push rod 3 extends or contracts, and makes the movement tendency of the connecting rod 9 opposite to the movement tendency of the connecting push rod. Therefore, it can better make the U-shaped plate 13 drive the linkage plate 15 to rotate, and then drive the flipping baffle 10 to rotate through the connecting rod 9. Among them, when the flipping baffle 10 is erected, the linkage plate 15 rotates and contacts a limit block 11. When the flipping baffle 10 is laid flat, the linkage plate 15 rotates and contacts another limit block 11.

[0032] In one embodiment, referring to Figure 1 and Figure 3, the sliding and pushing mechanism 5 includes a sliding rod 18 and a fixed baffle 19. The two sliding rods 18 are symmetrically arranged on both sides of the electric push rod 3. One ends of the two sliding rods 18 close to the extending end of the electric push rod 3 are respectively hinged to the middle parts of the two flipping baffles 10. The upper parts of one ends of the two sliding rods 18 close to the fixed end of the electric push rod 3 are vertically and fixedly provided with the fixed baffle 19. In the state where the electric push rod 3 is fully retracted, the middle parts of the two sliding rods 18 are in sliding contact connection with the pre-tightening and guiding mechanism 6. On the top surface of the middle part of each sliding rod 18 close to the flipping baffle 10, an auxiliary traction mechanism 7 is arranged. And on the sliding rod 18 at the position of the auxiliary traction mechanism 7, two limit blocks 11 for restricting the rotation amplitude of the linkage plate 15 are fixedly provided. And the side surface of the sliding rod 18 at the position between the two limit blocks 11 is rotatably connected with the connecting shaft 14. Among them, the fixed baffle 19 and the flipping baffle 10 are used to fixedly limit the trash can 46. And a first electromagnet 20 is embedded in the middle of the fixed baffle 19. And the working surface of the first electromagnet 20 is flush with the surface of the fixed baffle 19 facing the flipping baffle 10. On the surface of the trash can 46 opposite to the fixed baffle 19, an iron plate 21 is embedded. The setting position of the iron plate 21 corresponds to the setting position of the first electromagnet 20. And when fixedly limiting the trash can 46, both the fixed baffle 19 and the flipping baffle 10 are in contact with the side surface of the trash can 46. In this design, the design of the first electromagnet 20 can make the trash can 46 move more stably when the trash can 46 is pushed out or pulled back. In the specific implementation process, when the staff controls the electric push rod 3 to fully extend and the sliding and pushing mechanism 5 pushes out the trash can 46, at this time the controller controls the first electromagnet 20 to be powered off, so that the first electromagnet 20 loses magnetism and separates from the iron plate 21. Then the staff pulls out the trash can 46. When the staff puts a new trash can 46 back, the staff controls the electric push rod 3 to contract. At this time the controller controls the first electromagnet 20 to be powered on, so that the first electromagnet 20 generates magnetism and attracts the iron plate 21, thereby making the trash can 46 better pulled back to the original position.

[0033] In one embodiment, in combination with Figure 1 and Figure 6, two pre-tightening guiding mechanisms 6 are symmetrically arranged on both sides of the electric push rod 3. The pre-tightening guiding mechanism 6 includes an upper fixed cross plate 22, a lower fixed cross plate 23, a guiding plate 24 and a side plate 25. The side plate 25 is vertically fixed on the bottom plate 1 along the telescopic direction of the electric push rod 3. On the surface of the side plate 25 close to the electric push rod 3, the upper fixed cross plate 22 and the lower fixed cross plate 23 are symmetrically arranged up and down. At least one fixing nut 26 is fixedly arranged on the upper surface of the upper fixed cross plate 22 and the lower surface of the lower fixed cross plate 23. At least one adjusting bolt 27 is arranged above the upper fixed cross plate 22 and below the lower fixed cross plate 23, and the adjusting bolts 27 are respectively threadedly connected with the fixing nuts 26. The adjusting bolts 27 distributed up and down respectively penetrate through the upper fixed cross plate 22 and the lower fixed cross plate 23 and are respectively rotatably connected with the two guiding plates 24. The opposite surfaces of the two guiding plates 24 are in sliding contact connection with the surface of the sliding rod 18. A plurality of lower supporting plates are arranged on the bottom surface of the lower fixed cross plate 23, and a plurality of upper supporting plates are arranged on the top surface of the upper fixed cross plate 22. The lower supporting plates and the upper supporting plates are both fixedly connected with the side plate 25. Among them, the guiding plate 24 is preferably made of nylon plate material, which has wear-resistant characteristics. In this design, by turning the adjusting bolt 27, the guiding plate 24 can be adjusted up and down, so as to adjust the friction force between the guiding plate 24 and the sliding rod 18, and further adjust the moving speed of the sliding pushing mechanism 5 for pushing or pulling back the trash can 46.

[0034] In one embodiment, referring to Figure 4, the auxiliary traction mechanism 7 includes a first support platform 28, a second support platform 29, a fixed box 30, an arc-shaped slide rail 31, a first traction electromagnet 32, a second traction electromagnet 33, a first traction block 34, a second traction block 35, a first traction spring 36 and a second traction spring 37. The first support platform 28 and the second support platform 29 are symmetrically arranged on the upper surface of the middle part of the sliding rod 18 near the position of the flipping baffle 10. The first support platform 28 is located at the rotation position of the linkage plate 15 when the flipping baffle 10 is erected, and the second support platform 29 is located at the rotation position of the linkage plate 15 when the flipping baffle 10 is laid flat. Fixed boxes 30 are fixedly provided on the opposite surfaces of the first support platform 28 and the second support platform 29. The first traction electromagnet 32 is fixedly provided in the fixed box 30 on the first support platform 28, and the second traction electromagnet 33 is fixedly provided in the fixed box 30 on the second support platform 29. An arc-shaped slide rail 31 is fixedly provided between the two fixed boxes 30. Both ends of the arc-shaped slide rail 31 are communicated with the fixed boxes 30, and the working surfaces of the first traction electromagnet 32 and the second traction electromagnet 33 are both arranged facing the arc-shaped slide rail 31. The connecting slider 16 is slidably placed in the arc-shaped slide rail 31, and the arc center point of the arc-shaped slide rail 31 coincides with the rotation center point of the linkage plate 15. One side of the connecting slider 16 close to the first traction electromagnet 32 is fixedly connected to one end of the first traction spring 36, and the other end of the first traction electromagnet 32 is fixedly provided with the first traction block 34. One side of the connecting slider 16 close to the second traction electromagnet 33 is fixedly connected to one end of the second traction spring 37, and the other end of the second traction spring 37 is fixedly provided with the second traction block 35. Both the first traction block 34 and the second traction block 35 can slide in the arc-shaped slide rail 31. Among them, due to design requirements, the fixed box 30 and the arc-shaped slide rail 31 should preferably be made of non-magnetic materials, such as austenitic stainless steel (304 stainless steel), aluminum alloy, etc., while the first traction block 34 and the second traction block 35 should preferably be made of strong magnetic materials, such as pure iron, etc.;

[0035] In the specific implementation process, when it is necessary to push out the trash can 46, the staff controls the electric push rod 3 to extend. At this time, the controller controls the first traction electromagnet 32 to be powered off and lose its magnetism, and at the same time controls the second traction electromagnet 33 to be powered on and generate magnetism. As a result, the first traction electromagnet 32 is separated from the first traction block 34, and at the same time, the second traction electromagnet 33 attracts the second traction block 35 to slide towards the direction of the flipping baffle 10, thereby stretching the second traction spring 37 so that its pulling force acts on the connecting slider 16 to make it tend to move towards the flipping baffle 10. Therefore, when the electric push rod 3 extends, it can better assist in driving the linkage plate 15 to rotate towards the flipping baffle 10. When the linkage plate 15 contacts the limiting block 11 close to the second support platform 29, the flipping baffle 10 is in a flat state. At this time, the second traction electromagnet 33 is attracted and attached to the second traction block 35, and the second traction spring 37 is in a compressed state under the action of the connecting slider 16. When it is necessary to pull back the trash can 46, the staff controls the electric push rod 3 to contract. At this time, the controller controls the second traction electromagnet 33 to be powered off and lose its magnetism, and at the same time controls the first traction electromagnet 32 to be powered on and generate magnetism. As a result, the second traction electromagnet 33 is separated from the second traction block 35, and at the same time, the first traction electromagnet 32 attracts the first traction block 34 to slide towards the fixed baffle 19, thereby stretching the first traction spring 36 so that its pulling force and the restoring force of the second traction spring 37 both act on the connecting slider 16 to make it tend to move towards the fixed baffle 19. Therefore, when the electric push rod 3 contracts, it can better assist in driving the linkage plate 15 to rotate towards the fixed baffle 19. When the linkage plate 15 contacts the limiting block 11 close to the first support platform 28, the flipping baffle 10 is in an upright state. At this time, the first traction electromagnet 32 is attracted and attached to the first traction block 34, and the first traction spring 36 is in a compressed state under the action of the connecting slider 16.

[0036] In one embodiment, in combination with Figure 5 and Figure 6, the locking mechanism 8 includes a mounting plate 38, a second electromagnet 39, a locking plate 40, a locking pin 41, a pressing plate 42, a fixing cylinder 43, a locking spring 44 and a vertical plate 45. The mounting plate 38 and the vertical plate 45 are vertically and fixedly arranged side by side on the bottom plate 1 along the width direction of the bottom plate 1, and both the mounting plate 38 and the vertical plate 45 are arranged at both sides of the flipping linkage mechanism 4. The mounting plate 38 is arranged away from the flipping linkage mechanism 4, and the vertical plate 45 is arranged close to the flipping linkage mechanism 4. A fixing cylinder 43 is fixedly arranged at the upper end of the vertical plate 45. A locking pin 41 is slidably arranged through the middle of the fixing cylinder 43. The sliding direction of the locking pin 41 is consistent with the direction in which the mounting plate 38 and the vertical plate 45 are arranged side by side. A pressing plate 42 is fixedly arranged on the locking pin 41, and the pressing plate 42 is slidably placed in the fixing cylinder 43. A locking spring 44 is fixedly arranged between the side of the pressing plate 42 away from the mounting plate 38 and the side wall of the fixing cylinder 43 away from the mounting plate 38. A locking plate 40 is fixedly arranged at one end of the locking pin 41 close to the mounting plate 38. A second electromagnet 39 is fixedly arranged on one side surface of the mounting plate 38 close to the vertical plate 45. The setting position of the second electromagnet 39 corresponds to the setting position of the locking plate 40. Among them, when the electric push rod 3 is fully retracted, the central axis of the locking pin 41 coincides with the central axis of the hollow short shaft 17. When the second electromagnet 39 is attracted and attached to the locking plate 40, the locking spring 44 is in a stretched state and the end of the locking pin 41 does not exceed the end of the fixing cylinder 43. Among them, due to design requirements, the locking plate 40 and the locking pin 41 should preferably be made of strongly magnetic conductive materials, such as pure iron, etc. In the specific implementation process, when the staff controls the electric push rod 3 to be fully retracted, at this time, the through hole in the middle of the hollow short shaft 17 is directly opposite to the locking pin 41. At this time, the controller controls the second electromagnet 39 to be powered off and lose its magnetism, thereby causing the second electromagnet 39 to separate from the locking plate 40. Under the restoring force of the locking spring 44, the locking pin 41 is inserted into the hollow short shaft 17, so that the linkage plate 15 is locked, thereby preventing the flipping linkage mechanism 4 from rotating under the action of an external force and affecting the stability of the trash can 46. When the staff controls the electric push rod 3 to extend, at the same time, the controller controls the second electromagnet 39 to be powered on and generate magnetism, thereby causing the second electromagnet 39 to be attracted and attached to the locking plate 40, and then driving the locking pin 41 to be pulled out of the hollow short shaft 17, so that the linkage plate 15 is unlocked, facilitating the subsequent operation of the device.

[0037] As Figure 9 shown, a buried station 47 is provided with a trash can pushing device for the buried station installed therein.

[0038] Working principle: When the staff collects and cleans the garbage in the underground station 47, the staff controls the underground station 47 to rise so that the bottom plate 1 is flush with the ground. Then, when it is necessary to push out the trash can 46, the staff controls the electric push rod 3 to extend. At this time, the controller controls the second electromagnet 39 to be energized to generate magnetism, so that the second electromagnet 39 attracts and fits with the locking plate 40, thereby driving the locking pin shaft 41 to be pulled out from the hollow short shaft 17, unlocking the linkage plate 15. At the same time, the controller controls the first traction electromagnet 32 to be de-energized to lose magnetism and controls the second traction electromagnet 33 to be energized to generate magnetism, so that the first traction electromagnet 32 separates from the first traction block 34. At the same time, the second traction electromagnet 33 attracts the second traction block 35 to slide towards the direction of the flipping baffle 10, thereby stretching the second traction spring 37 so that its pulling force acts on the connecting slider 16 to make it tend to move towards the direction of the flipping baffle 10. Therefore, when the electric push rod 3 extends, it can better assist in driving the linkage plate 15 to rotate towards the direction of the flipping baffle 10. Then, the electric push rod 3 pushes the connecting push plate 12 to rotate obliquely upwards, thereby driving the connecting rod 9 to move in the reverse direction through the U-shaped plate 13 and the linkage plate 15, and then pulling the flipping baffle 10 to rotate around the end of the sliding rod 18. When the linkage plate 15 contacts the limit block 11 close to the second support platform 29, the flipping baffle 10 is in a flat state. Then, the electric push rod 3 continues to move until it is fully extended, so that the sliding pushing mechanism 5 drives the trash can 46 to be pushed out. At this time, the controller controls the first electromagnet 20 to be de-energized, so that the first electromagnet 20 loses magnetism and separates from the iron plate 21, and then the staff pulls out the trash can 46;

[0039] After the staff member places the trash can 46 back, the staff member controls the electric push rod 3 to contract. At this time, the controller controls the first electromagnet 20 to be energized, so that the first electromagnet 20 generates magnetism and attracts the iron plate 21. At the same time, the controller controls the second traction electromagnet 33 to be de-energized to lose its magnetism and controls the first traction electromagnet 32 to be energized to generate magnetism. As a result, the second traction electromagnet 33 is separated from the second traction block 35, and at the same time, the first traction electromagnet 32 attracts the first traction block 34 to slide in the direction of the fixed baffle 19, thereby stretching the first traction spring 36 so that the pulling force of the first traction spring 36 and the restoring force of the second traction spring 37 both act on the connecting slider 16 to make it tend to move in the direction of the fixed baffle 19. Therefore, when the electric push rod 3 contracts, it can better assist in driving the linkage plate 15 to rotate in the direction of the fixed baffle 19. Then, the electric push rod 3 pulls the connecting push plate 12 to rotate obliquely downward, and then drives the connecting rod 9 to move in the reverse direction through the U-shaped plate 13 and the linkage plate 15, thereby pushing the flip baffle 10 to rotate in the reverse direction around the end of the sliding rod 18. When the linkage plate 15 contacts the limit block 11 close to the first support table 28, the flip baffle 10 is in an upright state to limit the trash can 46. Then, the electric push rod 3 continues to move until it is completely contracted, so that the sliding and pushing mechanism 5 drives the trash can 46 to be pulled back to the original position. At this time, the through hole in the middle of the hollow short shaft 17 is aligned with the locking pin 41. At the same time, the controller controls the second electromagnet 39 to be de-energized to lose its magnetism, so that the second electromagnet 39 is separated from the locking plate 40. Under the action of the restoring force of the locking spring 44, the locking pin 41 is inserted into the hollow short shaft 17 to lock the linkage plate 15;

[0040] After the staff member finishes collecting and cleaning, the underground station 47 is controlled to descend to the original underground position.

[0041] The above embodiments are only used to illustrate the technical solutions of the embodiments of the present application, and are not intended to limit them. Although the embodiments of the present application have been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that without departing from the spirit and scope defined by the claims of the present application, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features.

Claims

1. A trash can pushing device for an underground station, comprising a bottom plate (1), a fixed seat (2), an electric push rod (3), a flipping linkage mechanism (4), a sliding pushing mechanism (5), a pre-tightening guiding mechanism (6), an auxiliary traction mechanism (7) and a locking mechanism (8), characterized in that, One end of the middle part of the upper surface of the bottom plate (1) is fixedly provided with the fixed seat (2). The fixed seat (2) is rotationally connected to the fixed end of the electric push rod (3). The extending end of the electric push rod (3) is hinged to the middle part of the flipping linkage mechanism (4). The middle parts of both sides of the flipping linkage mechanism (4) are rotationally connected to the sliding and pushing mechanism (5). The lower positions of both sides of the flipping linkage mechanism (4) are respectively hinged to one ends of two connecting rods (9). The other ends of the two connecting rods (9) are respectively hinged to the bottoms of one sides of two flipping baffles (10) close to the connecting rods (9). The middle parts of one sides of the two flipping baffles (10) close to the connecting rods (9) are respectively hinged to one end of the sliding and pushing mechanism (5) close to the extending end of the electric push rod (3). In the state where the electric push rod (3) is completely retracted, both sides of the middle part of the sliding and pushing mechanism (5) are in sliding contact connection with the pre-tightening and guiding mechanism (6). The bottom of the pre-tightening and guiding mechanism (6) is fixedly arranged on the bottom plate (1). On both sides of the top surface of the middle part of the sliding and pushing mechanism (5) close to the flipping baffle (10), the auxiliary traction mechanisms (7) are symmetrically arranged. The two auxiliary traction mechanisms (7) are respectively connected to the upper positions of both sides of the flipping linkage mechanism (4). And on the sliding and pushing mechanism (5) at the position of the auxiliary traction mechanism (7), two limit blocks (11) for limiting the flipping amplitude of the flipping linkage mechanism (4) are fixedly arranged. The two locking mechanisms (8) are symmetrically arranged on the bottom plate (1). Each locking mechanism (8) is exactly opposite to the outside of the position where the flipping linkage mechanism (4) is hinged to the connecting rod (9).

2. The trash can pushing device for an underground station according to claim 1, characterized in that, The flipping linkage mechanism (4) includes a connecting push plate (12), a U-shaped plate (13), a connecting shaft (14) and a linkage plate (15). The upper end of the connecting push plate (12) is hinged to the extending end of the electric push rod (3). The lower end of the connecting push plate (12) is fixedly arranged at the inner bottom of the U-shaped plate (13). At the upper positions of the two side plates (25) of the U-shaped plate (13), the connecting shafts (14) are fixedly arranged. Each connecting shaft (14) extends towards the outside of the U-shaped plate (13) and is fixedly arranged in the middle of the linkage plate (15). And each connecting shaft (14) passes through the linkage plate (15) and is rotationally connected to the sliding and pushing mechanism (5). At the upper position of the linkage plate (15), a connecting slider (16) is fixedly arranged. The connecting slider (16) is slidably placed in the auxiliary traction mechanism (7). At the lower position of the linkage plate (15), one end of the connecting rod (9) is hinged through a hollow short shaft (17).

3. The trash can pushing device for the underground station according to claim 2, characterized in that, The position height of the connection between the connecting push plate (12) and the extending end of the electric push rod (3) is higher than the position height where the connecting shaft (14) is arranged. The position height of the connection between the connecting push plate (12) and the inner bottom of the U-shaped plate (13) is lower than the position height where the connecting shaft (14) is arranged. Moreover, the connection between the electric push rod (3) and the connecting push plate (12) arches upward and the included angle formed by the two is an obtuse angle.

4. The trash can pushing device for an underground station according to claim 2, characterized in that, The sliding and pushing mechanism (5) includes sliding rods (18) and a fixed baffle (19). The two sliding rods (18) are symmetrically arranged on both sides of the electric push rod (3). One ends of the two sliding rods (18) close to the extending end of the electric push rod (3) are respectively hinged to the middle parts of the two flipping baffles (10). The upper parts of one ends of the two sliding rods (18) close to the fixed end of the electric push rod (3) are vertically and fixedly provided with the fixed baffle (19). The fixed baffle (19) and the flipping baffle (10) are used for fixing and limiting the trash can (46). In the state where the electric push rod (3) is fully retracted, the middle parts of the two sliding rods (18) are both in sliding contact connection with the pre-tightening and guiding mechanism (6). On the top surface of the middle part of each sliding rod (18) close to the flipping baffle (10), an auxiliary traction mechanism (7) is arranged. And on the sliding rod (18) at the position of the auxiliary traction mechanism (7), two limit blocks (11) for limiting the rotation amplitude of the linkage plate (15) are fixedly provided. And the side surface of the sliding rod (18) at the position between the two limit blocks (11) is rotationally connected with the connecting shaft (14).

5. A trash can pushing device for an underground station according to claim 4, characterized in that, A first electromagnet (20) is embedded in the middle of the fixed baffle (19), and the working surface of the first electromagnet (20) is flush with the surface of the fixed baffle (19) facing the flipping baffle (10). An iron plate (21) is embedded on the surface of the trash can opposite to the fixed baffle (19). The setting position of the iron plate (21) corresponds to the setting position of the first electromagnet (20). And when fixedly limiting the trash can (46), both the fixed baffle (19) and the flipping baffle (10) are in contact with the side surface of the trash can (46).

6. The trash can pushing device for an underground station according to claim 4, characterized in that, The two pre-tightening and guiding mechanisms (6) are symmetrically arranged on both sides of the electric push rod (3). The pre-tightening and guiding mechanism (6) includes an upper fixed cross plate (22), a lower fixed cross plate (23), a guiding plate (24) and a side plate (25). The side plate (25) is vertically fixed on the bottom plate (1) along the telescopic direction of the electric push rod (3). The upper fixed cross plate (22) and the lower fixed cross plate (23) are symmetrically arranged up and down on the surface of the side plate (25) close to the electric push rod (3). At least one fixing nut (26) is fixedly arranged on the upper surface of the upper fixed cross plate (22) and the lower surface of the lower fixed cross plate (23). At least one adjusting bolt (27) is arranged above the upper fixed cross plate (22) and below the lower fixed cross plate (23), and the adjusting bolts (27) are respectively in threaded connection with the fixing nuts (26). The adjusting bolts (27) distributed up and down respectively penetrate through the upper fixed cross plate (22) and the lower fixed cross plate (23) and are respectively rotatably connected with the two guiding plates (24). The opposite surfaces of the two guiding plates (24) are in sliding contact connection with the surface of the sliding rod (18). A plurality of lower support plates are arranged on the bottom surface of the lower fixed cross plate (23), and a plurality of upper support plates are arranged on the top surface of the upper fixed cross plate (22). The lower support plates and the upper support plates are both fixedly connected with the side plate (25).

7. A trash can pushing device for an underground station according to claim 4, characterized in that, The auxiliary traction mechanism (7) includes a first support platform (28), a second support platform (29), a fixed box (30), an arc-shaped slide rail (31), a first traction electromagnet (32), a second traction electromagnet (33), a first traction block (34), a second traction block (35), a first traction spring (36) and a second traction spring (37). The first support platform (28) and the second support platform (29) are symmetrically arranged on the upper surface of the middle part of the sliding rod (18) near the position of the flipping baffle (10). Fixed boxes (30) are fixedly arranged on the opposite surfaces of the first support platform (28) and the second support platform (29). The first traction electromagnet (32) is fixedly arranged in the fixed box (30) on the first support platform (28), and the second traction electromagnet (33) is fixedly arranged in the fixed box (30) on the second support platform (29). The arc-shaped slide rail (31) is fixedly arranged between the two fixed boxes (30). Both ends of the arc-shaped slide rail (31) are communicated with the fixed boxes (30), and the working surfaces of the first traction electromagnet (32) and the second traction electromagnet (33) are both arranged towards the arc-shaped slide rail (31). The connecting slider (16) is slidably placed in the arc-shaped slide rail (31), and the arc center point of the arc-shaped slide rail (31) coincides with the rotation center point of the linkage plate (15). One side of the connecting slider (16) close to the first traction electromagnet (32) is fixedly connected to one end of the first traction spring (36), and the other end of the first traction electromagnet (32) is fixedly provided with the first traction block (34). One side of the connecting slider (16) close to the second traction electromagnet (33) is fixedly connected to one end of the second traction spring (37), and the other end of the second traction spring (37) is fixedly provided with the second traction block (35). Both the first traction block (34) and the second traction block (35) can slide in the arc-shaped slide rail (31).

8. A trash can pushing device for an underground station according to claim 7, characterized in that, The first support platform (28) is located at the rotation position of the linkage plate (15) when the flipping baffle (10) is erected, and the second support platform (29) is located at the rotation position of the linkage plate (15) when the flipping baffle (10) is laid flat. Among them, when the flipping baffle (10) is erected, the linkage plate (15) rotates and contacts one of the limit blocks (11), and when the flipping baffle (10) is laid flat, the linkage plate (i5) rotates and contacts the other limit block (11).

9. The trash can pushing device for the underground station according to claim 2, characterized in that, The locking mechanism (8) includes a mounting plate (38), a second electromagnet (39), a locking plate (40), a locking pin shaft (41), a pressing plate (42), a fixed cylinder (43), a locking spring (44) and a vertical plate (45). The mounting plate (38) and the vertical plate (45) are vertically and fixedly arranged side by side on the bottom plate (1) along the width direction of the bottom plate (1), and both the mounting plate (38) and the vertical plate (45) are arranged on both sides of the flipping linkage mechanism (4). The mounting plate (38) is arranged away from the flipping linkage mechanism (4), and the vertical plate (45) is arranged close to the flipping linkage mechanism (4). The fixed cylinder (43) is fixedly arranged at the upper end of the vertical plate (45). The locking pin shaft (41) is slidably arranged through the middle of the fixed cylinder (43). The sliding direction of the locking pin shaft (41) is consistent with the side-by-side arrangement direction of the mounting plate (38) and the vertical plate (45). The pressing plate (42) is fixedly arranged on the locking pin shaft (41), and the pressing plate (42) is slidably placed in the fixed cylinder (43). A locking spring (44) is fixedly arranged between the side of the pressing plate (42) away from the mounting plate (38) and the side wall of the fixed cylinder (43) away from the mounting plate (38) inside the fixed cylinder (43). The locking plate (40) is fixedly arranged at one end of the locking pin shaft (41) close to the mounting plate (38). The second electromagnet (39) is fixedly arranged on one side surface of the mounting plate (38) close to the vertical plate (45). The setting position of the second electromagnet (39) corresponds to the setting position of the locking plate (40). Wherein, when the electric push rod (3) is fully retracted, the central axis of the locking pin shaft (41) coincides with the central axis of the hollow short shaft (17). When the second electromagnet (39) is attracted and attached to the locking plate (40), the locking spring (44) is in a stretched state and the end of the locking pin shaft (41) does not exceed the end of the fixed cylinder (43).

10. A buried station (47), in which a trash can pushing device for the buried station according to claims 1-9 is installed.

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