A pusher device

Abstract

The utility model relates to a pushing device, which relates to a pushing technical field, including article pushing interval with window, the pushing plate mechanism driven by power device arranged in article pushing interval, the electric gate located at the window, the sensor located near the electric gate, the pushing plate mechanism includes shaft, the plate rotating around the shaft, the reset spring arranged between the plate and the shaft, the drive mechanism driving the plate to rotate along the shaft. Compared with the prior art, the utility model has the advantages that the pushing plate does not easily interfere with the normal work of the sensor, the article is not easily contaminated when taking the article, and the article is convenient to take.

Description

Technical Field

[0001] This invention relates to the field of propulsion technology, and in particular to a launching device. Background Technology

[0002] As disclosed in patent 2021209771363, the existing automatic food dispensing device has the following structure: a forward and backward moving mechanism drives a pusher plate to move back and forth, pushing items delivered from the storage compartment out of the dispensing window for people to take. If the items being pushed are food, the exit of the dispensing compartment needs to be closed with a gate after people take the items to prevent external contaminants from polluting the compartment. The gate is closed by detecting whether there are items under it. Existing technology, because it only involves the forward and backward movement of the pusher plate, requires careful consideration to ensure the safety of the food. The item is in a retrievable position, so the pusher will continue to push the item to the window until it is taken away. At this time, because the pusher is relatively close to the window, even if the item is taken away, the pusher remaining at the window will interfere with the operation of the sensor, and may cause the sensor to mistakenly think that the item is still at the window. In addition, packaged items can generally only be pushed to the inside near the window to avoid falling outside the window. At this time, the user needs to reach into the window to retrieve the item, which can easily pollute the space between the pushers and is also inconvenient for the user. Summary of the Invention

[0003] The purpose of this invention is to provide a pusher that does not easily interfere with the normal operation of the sensor, does not easily contaminate the item extraction chamber when retrieving items, and is convenient for retrieval.

[0004] The ejection device of the present invention is implemented as follows: it includes an item ejection chamber with a window, a push plate mechanism driven by a power device disposed in the item ejection chamber, an electric gate located at the window, and a sensor located near the electric gate. The special feature is that the push plate mechanism includes a shaft, a plate that rotates around the shaft, a return spring disposed between the plate and the shaft, and a drive mechanism that drives the plate to rotate along the shaft.

[0005] Preferably, the plate is L-shaped, with the horizontal plate facing the window and the vertical plate facing the edge of the window. The vertical plate of the L-shaped plate is the driving mechanism. Alternatively, the plate is a flat plate with a stop block near the window 1. The stop block corresponds to one side of the flat plate and is the driving mechanism.

[0006] During operation, items from the storage room are delivered to the pusher mechanism in the pushing room, which is in its initial position. Then, the power is activated, causing the pusher mechanism to move forward and push the items to the window. Simultaneously, the window gate opens. When the pusher mechanism reaches the window, if the plate is L-shaped, the vertical plate of the L-shaped plate will be unable to move forward as it rests against the window edge. At this point, because the plate rotates around an axis, as the power pushes the axis forward, the L-shaped plate rotates along the axis, and the free end of the horizontal plate swings towards the window, pushing the items forward. If the plate is flat, a stop is provided near window 1. One side of the flat plate will be unable to move forward as it rests against the stop of the pusher mechanism. Again, because the plate rotates around an axis, as the power pushes the axis forward, the plate rotates along the axis, and the free end of the horizontal plate swings towards the window, pushing the items forward. The plate swings towards the window, pushing the item forward. Because the item swings with the plate, one end remains inside the window while the other end moves outside. This way, the plate doesn't need to move entirely to the window, allowing part of the item to be outside. The user can retrieve the item without reaching inside, facilitating retrieval and preventing contamination of the retrieval space. Since only part of the plate moves to the window while the rest remains inside, the item is also partially inside and partially outside. Therefore, once the item is removed, as long as the sensor position is set correctly, it won't be interfered with by the portion of the plate closest to the window, ensuring reliable control.

[0007] Preferably, the push plate mechanism includes a positioning member connected to the shaft. The positioning member is a plate so that, under the action of the torsion spring, the L-shaped plate is usually against the positioning member, so that the horizontal plate of the L-shaped plate is usually parallel to the window.

[0008] Compared with existing technologies, this invention has the advantages that the push plate does not easily interfere with the normal operation of the sensor, does not easily contaminate the item extraction chamber when retrieving items, and is convenient to extract. Attached Figure Description

[0009] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of the device for launching the present invention;

[0010] Figure 2 for Figure 1 Side view;

[0011] Figure 3 Workflow diagram for the invention launch device;

[0012] Figure 4 This is a schematic diagram of the structure of Embodiment 2 of the device of the present invention.

[0013] Explanation of reference numerals in the attached drawings: 1. Window; 2. Item ejection chamber; 3. Power unit; 4. Push plate mechanism; 401. Shaft; 402. Plate; 4021. Horizontal plate; 4022. Vertical plate; 403. Return spring; 404. Positioning component; 5. Electric gate; 6. Sensor; 7. Item storage chamber; 8. Stop; A. Item. Detailed Implementation

[0014] The ejection device of the present invention will now be described in further detail with reference to the accompanying drawings and embodiments:

[0015] Example 1: As Figure 1 , 2 As shown, the ejection device of the present invention is implemented as follows: it includes an item ejection chamber 2 with a window 1, a push plate mechanism 4 driven by a power device 3 and disposed in the item ejection chamber 2, an electric gate 5 located at the window 1, and a sensor 6 located near the electric gate 5. The special feature is that the push plate mechanism 4 includes a shaft 401, a plate 402 rotating around the shaft 401, a return spring 403 (torsion spring) disposed between the plate 402 and the shaft 401, and a drive mechanism for driving the plate 402 to rotate along the shaft 401. The plate 402 is L-shaped, with the horizontal plate 4021 of the L-shaped plate facing the window 1 and the vertical plate 4022 of the L-shaped plate facing the window edge of the window 1. The vertical plate 4022 of the L-shaped plate is the drive mechanism.

[0016] Preferably, the push plate mechanism 4 includes a positioning member 404 connected to the shaft 401. The positioning member 404 is a plate so that under the action of the torsion spring 403, the L-shaped plate is usually against the positioning member 404, so that the horizontal plate 4021 of the L-shaped plate is usually in a state parallel to the window.

[0017] Sensor 6 is located at the vertical plate 4022 of the L-shaped plate, which is biased towards the upper part of the inner side of window 1.

[0018] Example 2: Figure 4 As shown, in this embodiment, the plate 402 is a flat plate based on the first embodiment. A stop 8 (such as a column) is provided near the window 1. The stop 8 corresponds to one side of the flat plate and is the driving mechanism.

[0019] like Figure 3As shown, during operation, item A (packaged food) from the storage room 7 is delivered to the front of the push plate mechanism 4 in the starting position within the item ejection room 2. Then, the power device 3 (which can be a pulley driven by a motor, a slider driven by a belt along a guide rail, and the push plate mechanism 4 connected to a crossbeam on the slider) is activated, causing the push plate mechanism 4 to move forward and push item A to window 1. At the same time, the electric gate 5 of window 1 opens. When the push plate mechanism 4 moves to window 1, the vertical plate 4022 of the L-shaped plate of the push plate mechanism 4 rests against the window edge of window 1 and cannot move forward. At this time, since plate 402 rotates around axis 401, as the power device 3 pushes axis 401 forward, the L-shaped plate rotates along axis 401, and the free end of the horizontal plate 4021 of the L-shaped plate swings towards window 1. The L-shaped plate pushes item A towards window 1. As item A swings with the L-shaped plate, one end of item A remains inside window 1 while the other end moves outside. This way, the L-shaped plate doesn't need to move entirely to window 1 to move part of item A outside. Thus, the user can retrieve item A without reaching into window 1. Since only part of the L-shaped plate moves to window 1 while the other part remains inside, item A is also partially inside and partially outside the window. Therefore, once item A is taken away, as long as sensor 6 is properly positioned, it will not be interfered with by the part of the L-shaped plate near window 1, ensuring the reliability of the control.

Claims

1. A pushing device, comprising an item pushing chamber with a window, a push plate mechanism driven by a power device disposed within the item pushing chamber, an electric gate located at the window, and a sensor located near the electric gate, characterized in that, The push plate mechanism includes a shaft, a plate that rotates around the shaft, a return spring disposed between the plate and the shaft, and a drive mechanism that drives the plate to rotate along the shaft. The plate is L-shaped, with the horizontal plate of the L-shaped plate facing the window and the vertical plate of the L-shaped plate facing the edge of the window. The vertical plate of the L-shaped plate is the drive mechanism. When the push plate mechanism moves to the window, the vertical plate of the L-shaped plate of the push plate mechanism rests against the edge of the window and cannot continue to move forward.

2. The ejection device according to claim 1, characterized in that, The push plate mechanism includes a positioning component connected to the shaft.

3. The ejection device according to claim 2, characterized in that, The positioning component is a plate-shaped object.

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