Physical limit switch for vending machine
By installing a physical limit switch consisting of an elastic retaining ring and a slanted sleeve at the end of the vending machine's dispensing track, the problem of goods accidentally falling off is solved, and stable dispensing of goods is achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-19
- Publication Date
- 2026-04-07
AI Technical Summary
In vending machines, the outermost items are prone to accidentally falling into the dispensing compartment due to machine vibration or excessive push rod travel.
Design a physical limit switch, including a base plate installed at the end of the delivery track and an elastic retaining ring. The retaining ring is driven to switch between the limit position and the delivery position by using a beveled sleeve, and the elastic force of the retaining ring prevents the goods from falling.
It effectively prevents goods from falling accidentally under the action of the push rod, ensures smooth delivery of goods, and avoids accidental losses caused by machine vibration.
Smart Images
Figure CN224096234U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to automatic vending machine technical field, more specifically, it relates to a physical limit switch for automatic vending machine. BACKGROUND
[0002] The goods on the automatic vending machine are placed on the delivery track, and the goods are moved from the inside to the outside to the delivery end of the delivery track under the action of the push rod; in the non-delivery state, the outermost goods are located at the end of the delivery track, waiting for the push rod to push; in the delivery state, the outermost goods will fall to the delivery warehouse located at the bottom of the automatic vending machine after being pushed by the push rod.
[0003] In actual use, the outermost goods often accidentally fall from the delivery track to the delivery warehouse due to machine shaking or excessive push rod stroke. INVENTION CONTENTS
[0004] The utility model aims at providing a physical limit switch for automatic vending machine, which solves the technical problem of accidental falling of the outermost goods from the delivery track to the delivery warehouse.
[0005] The above technical purpose of the utility model is realized by the following technical scheme:
[0006] A physical limit switch for automatic vending machine, comprising a bottom plate for mounting on the end of the delivery track of the automatic vending machine, and an elastic snap ring buckle for blocking the goods from falling from the delivery track; the end of the bottom plate is provided with two inclined sleeve pipes for driving the elastic snap ring buckle to switch from the delivery position to the limiting position, one of the two inclined sleeve pipes is rotatably sleeved with one end of the elastic snap ring buckle, and the other inclined sleeve pipe is rotatably sleeved with the other end of the elastic snap ring buckle.
[0007] Preferably, the distance between the two inclined sleeve pipes is D, and D is between 35mm and 37mm.
[0008] Preferably, the inclined angle of the inclined sleeve pipe is θ, and θ is between 47° and 49°.
[0009] Preferably, the elastic snap ring buckle is made of a steel wire with a diameter of 1.5-2.0mm.
[0010] Preferably, the thickness of the bottom plate is 0.4mm-0.6mm.
[0011] Preferably, the bottom plate is provided with a double-sided adhesive layer.
[0012] In summary, this utility model has the following beneficial effects: When pushed by the push rod, the goods will move forward. When the goods touch the elastic retaining ring, they will continue to move forward with the pushing force. Then the elastic retaining ring will be lifted from the limit position to the delivery position. When the goods fall down, the elastic retaining ring will automatically return to the original limit position under the action of the slanted sleeve, thereby preventing the goods from moving forward at will and preventing the goods from falling naturally. Attached Figure Description
[0013] Figure 1 This is an exploded view of this utility model;
[0014] Figure 2 This is a front view of the base plate of this utility model;
[0015] Figure 3 This is a side view of the base plate of this utility model;
[0016] Figure 4 This is a schematic diagram of the structure of this utility model installed on an automatic vending machine;
[0017] Figure 5 These are two state diagrams of this utility model. Detailed Implementation
[0018] To make the objectives, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model are described in detail below with reference to the accompanying drawings. Several embodiments of this utility model are shown in the drawings. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein.
[0019] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.
[0020] This utility model provides a physical limit switch for vending machines, such as... Figures 1-5 As shown, it includes a base plate 1 for installation on the end of the dispensing track 3 on the vending machine, and an elastic retaining ring 2 for preventing goods from falling off the dispensing track 3; the end of the base plate 1 is provided with two oblique sleeves 11 for driving the elastic retaining ring 2 to switch from the dispensing position to the limiting position, one oblique sleeve 11 is rotatably fitted onto one end of the elastic retaining ring 2, and the other oblique sleeve 11 is rotatably fitted onto the other end of the elastic retaining ring 2.
[0021] Specifically, the base plate 1 and the beveled sleeve 11 are integrally formed from metal plates with a thickness of 0.4-0.6mm, and the elastic retaining ring 2 is made from steel wire with a diameter of 1.5mm-2.0mm through a bending process. The left and right ends of the elastic retaining ring 2 are respectively inserted into the corresponding beveled sleeve 11, and the elastic retaining ring 2 can rotate a certain angle around the axis of the beveled sleeve 11. In use, the base plate 1 is installed at the end of the delivery track 3 using screws, rivets, double-sided tape, adhesive, and other fixing tools, and is positioned above the goods (see [specific location] for details). Figure 4 The base plate 1 is preferably installed at the end of the delivery track 3 using double-sided adhesive. The double-sided adhesive with release paper adheres to the back of the base plate 1, which has the advantage of being easy to install compared to other fixing tools. Multiple goods are located within the delivery track 3 and are blocked by the elastic retaining ring 2. Under the push of the push rod, the goods will move forward. When the goods touch the elastic retaining ring 2, they will continue to move forward with the push force, and then the elastic retaining ring will move from the limit position ( Figure 5 (B) Position shown) Lift up to the shipping position. Figure 5 (A) In the position shown, when the goods fall downwards, the elastic retaining ring 2 will automatically return to its original limit position under the action of the inclined sleeve 11, thereby preventing the goods from moving forward at will and preventing the goods from falling naturally.
[0022] Furthermore, the distance between the two oblique sleeves 11 is denoted as D, where D is between 35mm and 37mm.
[0023] like Figures 1-3 As shown, the elastic force of the elastic retaining ring 2 should not be too large, and the length of its retaining ring opening should not be too long. If the elastic force is too large or the length of the retaining ring opening is too long, multiple goods will be squeezed against each other when the goods move forward, causing the outermost goods to fail to fall off normally. At this time, the physical limit switch will lose its function. Specifically, the length of the retaining ring opening should be slightly greater than the distance D between the two oblique sleeves 11; D between 35mm and 37mm can give the elastic retaining ring 2 a better reset effect, and it can be set to 35mm, 36mm, or 37mm.
[0024] Furthermore, the bevel angle of the beveled sleeve 11 is denoted as θ, where θ is between 47° and 49°.
[0025] like Figures 1-3As shown, the bevel angle of the beveled sleeve 11 and the size of the retaining ring opening of the elastic retaining ring 2 must be designed to match each other. The elastic force resulting from the matching of their sizes is crucial. If the distance between the two beveled sleeves 11 is too large or its bevel angle is too large, the retaining ring opening will lose its elasticity or its elasticity will be too small, and the elastic retaining ring 2 will not play a blocking role. If the distance between the two beveled sleeves 11 is too small or its bevel angle is too small, the force of the retaining ring will be too large. Specifically, the bevel angle of the beveled sleeve 11 is denoted as θ; θ between 47° and 49° can give the elastic retaining ring 2 a better reset effect, and it can be set to 47°, 48°, or 49°.
[0026] In summary, the physical limit switch provided by this utility model requires no electronic equipment, making it very environmentally friendly and practical. It cleverly utilizes the left and right elastic forces of the elastic ring buckle 2 and the angular size limitation of the beveled sleeve 11 to form a natural elastic force. When an external force pushes the elastic ring buckle 2 forward, the bottom plate 1 of the elastic ring buckle 2 restricts it to roll and rotate, causing the elastic ring buckle 2 to lift upward. When the external force disappears, the elastic force of the elastic ring buckle 2 itself is set by the beveled sleeve 11, and the elastic ring buckle 2 returns to the limit position. The two work together to form an elastic telescopic function.
[0027] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.
Claims
1. A physical limit switch for use in vending machines, characterized in that, Includes a base plate for installation on the end of the dispensing track of an automatic vending machine, and an elastic retaining ring for preventing goods from falling off the dispensing track; the end of the base plate is provided with two oblique sleeves for driving the elastic retaining ring to switch from the dispensing position to the limiting position, one oblique sleeve rotating to fit one end of the elastic retaining ring, and the other oblique sleeve rotating to fit the other end of the elastic retaining ring.
2. The physical limit switch for a vending machine according to claim 1, characterized in that, The distance between the two beveled sleeves is denoted as D, where D is between 35mm and 37mm.
3. The physical limit switch for a vending machine according to claim 2, characterized in that, The bevel angle of the beveled sleeve is denoted as θ, where θ is between 47° and 49°.
4. The physical limit switch for a vending machine according to claim 2, characterized in that, The elastic snap ring is made of steel wire with a diameter of 1.5-2.0mm.
5. The physical limit switch for a vending machine according to claim 4, characterized in that, The thickness of the base plate is 0.4mm-0.6mm.
6. The physical limit switch for a vending machine according to claim 1, characterized in that, The base plate has a double-sided adhesive layer.