Lifting mechanism and goods dispensing apparatus

Abstract

The application relates to the field of goods issuing, in particular to a lifting mechanism and a goods issuing device. The lifting mechanism comprises a guide rail fixed in a cabinet of the goods issuing device, the guide rail comprising a first guide surface and a second guide surface which extend obliquely towards each other and are arranged vertically; and a roller assembly comprising at least one roller which is rotatably connected to a delivery hopper accommodated in the cabinet around an axis of the roller, an annular groove which surrounds the axis of the roller and accommodates part of the guide rail is formed in the outer periphery of the roller, and two side walls of the annular groove are a first annular inclined surface and a second annular inclined surface which extend obliquely towards each other; wherein when the delivery hopper is lifted in the cabinet, the first annular inclined surface is in rolling contact with the first guide surface, and the second annular inclined surface is in rolling contact with the second guide surface. The application reduces assembly difficulty and product failure rate, improves production efficiency, and prolongs the service life of the lifting mechanism.

Description

Technical Field

[0001] This application relates to the field of goods dispensing, and in particular to a lifting mechanism and goods dispensing equipment. Background Technology

[0002] In automated goods dispensing equipment such as vending machines and smart lockers, the lifting mechanism typically includes two sets of symmetrically fixed guide rails within the cabinet and two sets of rollers rotatably connected to the dispensing hopper. The rollers guide the hopper during lifting by rolling contact with the corresponding guide rails. In related technologies, grooves are formed on the guide rails, and cylindrical rollers are partially housed within these grooves. The outer circumference of the roller contacts the bottom of the groove, while the gap between the roller's side and the groove's sidewall is small or even nonexistent. This necessitates extremely high parallelism in the installation of the guide rails and the machining parallelism of the cabinet's sides. Even slight deviations in machining and assembly can lead to low production efficiency and a high product defect rate. Furthermore, in actual use, the outer circumference of the roller is prone to scraping against the sidewall of the guide rail groove, resulting in sliding instead of rolling. This not only exacerbates roller fatigue damage and accelerates wear, shortening the lifespan of the lifting mechanism, but also causes the dispensing hopper to jam during lifting, accompanied by abnormal noise, severely impacting the user experience. Utility Model Content

[0003] This application provides a lifting mechanism and a goods dispensing device, which reduces assembly difficulty and product defect rate, improves production efficiency, and extends the service life of the lifting mechanism.

[0004] Firstly, the lifting mechanism provided in this application, installed in a goods dispensing device, includes:

[0005] A guide rail, fixed inside the cabinet of the goods dispensing equipment, includes a first guide surface and a second guide surface that extend obliquely towards each other and are vertically arranged; and

[0006] A roller assembly includes at least one roller rotatably connected to a delivery hopper housed in the cabinet about its axis. The outer periphery of the roller has an annular groove that surrounds the roller axis and houses a portion of the guide rail. The two side walls of the annular groove are a first annular inclined surface and a second annular inclined surface that extend in opposite directions.

[0007] When the delivery hopper moves up and down inside the cabinet, the first annular inclined surface rolls into contact with the first guide surface, and the second annular inclined surface rolls into contact with the second guide surface.

[0008] In some embodiments, the roller assembly further includes:

[0009] Two first connecting plates are spaced apart axially from the rollers and fixed to the discharge hopper; and

[0010] The rotating connector passes through the two first connecting plates and is arranged in a one-to-one correspondence with the rollers;

[0011] The roller is disposed between the two first connecting plates and is rotatably inserted through the corresponding rotating connector.

[0012] In some embodiments, the roller assembly further includes:

[0013] A connecting seat is disposed between two first connecting plates. The connecting seat includes two first connecting parts spaced apart and a second connecting part connected between the two first connecting parts. The roller is disposed between the two first connecting parts, and the rotating connector passes through the first connecting part.

[0014] A second connecting plate is fixed to the discharging hopper, and two first connecting plates are fixed to the side of the second connecting plate opposite to the discharging hopper; and

[0015] The elastic abutment abuts between the second connecting plate and the second connecting part.

[0016] In some embodiments, the elastic abutment is a compression spring;

[0017] The roller assembly also includes:

[0018] The first limiting post extends from the side of the second connecting plate facing the second connecting part; and

[0019] The second limiting post extends out from the side of the second connecting part facing the second connecting plate. The second limiting post is coaxial with the first limiting post and is spaced apart.

[0020] The compression spring is sleeved on the first limiting post and the second limiting post.

[0021] In some embodiments, the first connecting plate includes a plate body and a limiting body. The plate body has a first side and a second side disposed opposite to each other. The limiting body protrudes from the first side of the plate body, and the second side end face of the plate body is an arc surface concave to the discharge hopper.

[0022] The second connecting plate has a plug hole that engages with the limiting body.

[0023] In some embodiments, the two first connecting plates are provided with coaxially arranged first mounting holes, which are elongated holes;

[0024] Two first connecting portions are provided with coaxially arranged second mounting holes, which are circular holes.

[0025] The rotating connector passes through the first assembly hole and the second assembly hole.

[0026] In some embodiments, the rotating connector includes a nut portion and a bolt portion passing through the first mounting hole and the second mounting hole and locked to the nut portion;

[0027] The rotating connector further includes a first washer, a second washer, and a third washer passing through the bolt portion. The first washer is placed between the bolt portion and the first connecting plate, the second washer is placed between the first connecting plate and the first connecting portion, and the third washer is placed between the first connecting plate and the nut portion.

[0028] In some embodiments, the roller assembly includes two rollers spaced apart in the vertical direction; and / or,

[0029] The lifting mechanism includes two guide rails and two roller assemblies. The two guide rails are symmetrically arranged on opposite sides of the cabinet, and the two roller assemblies are symmetrically arranged on opposite sides of the unloading hopper.

[0030] In some embodiments, the guide rail further includes an arcuate guide surface connecting the first guide surface and the second guide surface;

[0031] The bottom wall of the annular groove also includes an annular arc surface connecting the first annular inclined surface and the second annular inclined surface;

[0032] The angle between the first annular inclined plane and the second annular inclined plane is 85 degrees to 90 degrees.

[0033] Secondly, the goods dispensing equipment provided in this application includes:

[0034] Cabinet;

[0035] Shipping bucket; and

[0036] The lifting mechanism as described in any embodiment of the first aspect.

[0037] Compared with the prior art, the beneficial effects of the embodiments of this application are as follows: When the dispensing hopper is raised and lowered within the cabinet, the first annular inclined surface rolls into contact with the first guide surface, and the second annular inclined surface rolls into contact with the second guide surface. The first and second guide surfaces extend at an angle towards each other, and the first and second annular inclined surfaces also extend at an angle towards each other. Because the inclined guide surfaces and annular inclined surfaces have better compatibility with parallelism deviations, assembly difficulty and product defect rates are reduced, thereby improving production efficiency. Furthermore, the rolling contact between the first annular inclined surface of the roller and the first guide surface of the guide rail, and the second annular inclined surface and the second guide surface, effectively prevents scraping between the outer circumference of the roller and the sidewall of the guide rail groove. This solves the problem of rollers sliding instead of rolling, reducing roller fatigue damage, slowing wear, extending the service life of the lifting mechanism, and ensuring smooth operation of the dispensing hopper during lifting, preventing jamming and abnormal noises, thus improving the user experience. Attached Figure Description

[0038] Figure 1 This is a schematic diagram of the goods dispensing equipment structure according to an embodiment of this application;

[0039] Figure 2 for Figure 1 A partial structural schematic diagram of the goods dispensing equipment shown;

[0040] Figure 3 This is a schematic diagram of the lifting mechanism structure in an embodiment of this application;

[0041] Figure 4 for Figure 3 A magnified view of a portion of the A structure;

[0042] Figure 5 for Figure 3 Another perspective illustration;

[0043] Figure 6 for Figure 5 A magnified view of the local B structure;

[0044] Figure 7 for Figure 5 CC section view;

[0045] Figure 8 for Figure 7 A magnified view of a local D-structure;

[0046] Figure 9 for Figure 5 Rear view;

[0047] Figure 10 for Figure 9 A magnified view of the local E-structure;

[0048] Figure 11This is a schematic diagram of the roller assembly structure in the lifting mechanism of an embodiment of this application;

[0049] Figure 12 for Figure 11 Another perspective illustration;

[0050] Figure 13 for Figure 11 Another perspective illustration;

[0051] Among them: 100-Goods dispensing equipment (10-Lifting mechanism (11-Guide rail (111-First guide surface, 112-Second guide surface, 113-Arc-shaped guide surface), 12-Roller assembly (121-Roller (1211-Annular groove, 1212-First annular inclined surface, 1213-Second annular inclined surface, 1214-Annular arc surface), 122-First connecting plate (1221-Plate body (12211-Arc surface), 1222-Limiting body, 1223-First assembly hole), 123-Rotating connecting part (1231-Nut part, 1232-Bolt part, 1233-First washer, 123...) 4-Second gasket, 1235-Third gasket), 124-Connecting seat (1241-First connecting part, 1242-Second connecting part, 1243-Second assembly hole), 125-Second connecting plate (1251-Insertion hole), 126-Elastic abutment (126a-Compression spring), 127-First limiting post, 128-Second limiting post), 13-Drive assembly (131-Fixed seat, 132-First transmission wheel, 133-Second transmission wheel, 134-First synchronous belt, 135-Drive component, 136-Fixed component, 137-Connecting shaft), 20-Cabinet, 30-Discharge bin). Detailed Implementation

[0052] To facilitate understanding of this application, a more complete description will be provided below with reference to the accompanying drawings. Preferred embodiments of this application are shown in the drawings. However, this application can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a thorough and complete understanding of the disclosure of this application.

[0053] It should be noted that when a component is said to be "fixed to" another component, it can be directly attached to the other component or there may be intermediate components present. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be intermediate components present.

[0054] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.

[0055] Please refer to Figures 1 to 13 In this embodiment, the lifting mechanism 10 is disposed in the goods dispensing device 100. The lifting mechanism 10 includes a guide rail 11 and a roller assembly 12. The guide rail 11 is fixed inside the cabinet 20 of the goods dispensing device 100. The guide rail 11 includes a first guide surface 111 and a second guide surface 112. The first guide surface 111 and the second guide surface 112 extend towards each other at an incline and are vertically arranged. The roller assembly 12 includes at least one roller 121, which is rotatably connected to the dispensing hopper 30 about its axis. The dispensing hopper 30 is housed within the cabinet 20. An annular groove 1211 is formed on the outer periphery of the roller 121. The annular groove 1211 is arranged around the axis of the roller 121 and accommodates part of the guide rail 11. The annular groove 1211 includes two opposing sidewalls. One sidewall of the annular groove 1211 is a first annular inclined surface 1212, and the other sidewall is a second annular inclined surface 1213. The first annular inclined surface 1212 and the second annular inclined surface 1213 extend inclined towards each other. When the dispensing hopper 30 moves up and down within the cabinet 20, the first annular inclined surface 1212 rolls into contact with the first guide surface 111, and the second annular inclined surface 1213 rolls into contact with the second guide surface 112.

[0056] In this embodiment, when the loading hopper 30 moves up and down within the cabinet 20, the first annular inclined surface 1212 rolls into contact with the first guide surface 111, and the second annular inclined surface 1213 rolls into contact with the second guide surface 112. The first guide surface 111 and the second guide surface 112 extend towards each other at an angle, and the first annular inclined surface 1212 and the second annular inclined surface 1213 extend towards each other at an angle. Because the cooperation between the inclined guide surface and the annular inclined surface has better compatibility with parallelism deviation, it reduces assembly difficulty and product defect rate, and improves production efficiency. Furthermore, the first annular inclined surface 1212 of the roller 121 makes rolling contact with the first guide surface 111 of the guide rail 11, and the second annular inclined surface 1213 makes rolling contact with the second guide surface 112. This effectively prevents the outer circumferential surface of the roller 121 from scraping against the side wall of the groove of the guide rail 11, thereby solving the problem of the roller 121 sliding instead of rolling. This not only reduces fatigue damage to the roller 121 and slows down the wear rate, extending the service life of the lifting mechanism 10, but also ensures the smoothness of the loading hopper 30 during the lifting process, avoiding jamming and abnormal noise, thereby improving the user experience.

[0057] In some implementation methods, please refer to Figure 4The roller assembly 12 further includes two first connecting plates 122 and a rotating connector 123. The two first connecting plates 122 are spaced apart axially from the rollers 121 and are respectively fixed to the discharge hopper 30. The rotating connectors 123 pass through the two first connecting plates 122, and the number of rotating connectors 123 is the same as the number of rollers 121, with each rotating connector 123 corresponding to a roller 121. The rollers 121 are disposed between the two first connecting plates 122 and are rotatably connected to their corresponding rotating connectors 123.

[0058] In this embodiment, two spaced-apart first connecting plates 122 provide symmetrical support and limit the roller 121 from both sides of the roller 121's axial direction, preventing the roller 121 from wobbling during rotation and lifting, and further ensuring the stability of the lifting of the loading hopper 30. Furthermore, the roller 121 and the rotating connecting member 123 are arranged in a one-to-one correspondence, so when a single roller 121 malfunctions and needs replacement, it is not necessary to disassemble the entire roller assembly 12, effectively saving assembly time and subsequent maintenance costs.

[0059] As one implementation method, please refer to Figure 8 , Figure 11 and Figure 12 There is a gap between the roller 121 and the first connecting plate 122, which effectively avoids direct contact and friction between the roller 121 and the first connecting plate 122 during the rotation of the roller 121 around the rotating connector 123. This avoids the additional resistance caused by friction from affecting the smoothness of the roller 121's rotation, and also avoids wear between the end face of the roller 121 and the inner wall of the first connecting plate 122 caused by friction, thus extending the service life of the roller 121 and the first connecting plate 122.

[0060] As one implementation method, please refer to Figure 8 , Figure 11 and Figure 12 The roller assembly 12 also includes a connecting seat 124, a second connecting plate 125, and an elastic abutment member 126. The connecting seat 124 is disposed between two first connecting plates 122. The connecting seat 124 includes a first connecting portion 1241 and a second connecting portion 1242. There are two first connecting portions 1241, spaced apart. The second connecting portion 1242 connects the two first connecting portions 1241. The roller 121 is disposed between the two first connecting portions 1241. A rotating connecting member 123 passes through the two first connecting portions 1241. The second connecting plate 125 is fixed to the discharging hopper 30, and the two first connecting plates 122 are fixed to the side of the second connecting plate 125 facing away from the discharging hopper 30. The elastic abutment member 126 abuts against the second connecting plate 125 and the second connecting portion 1242.

[0061] In this embodiment, the elastic abutment 126 abuts between the second connecting plate 125 and the second connecting part 1242. It can effectively buffer the impact force generated when the roller 121 contacts the guide rail 11 during the lifting and lowering of the loading hopper 30, avoid damage to the components caused by rigid collision, and adaptively compensate for deviations in the installation of the guide rail 11 or the processing of the cabinet 20, ensuring that the roller 121 always maintains rolling contact with the guide rail 11, reducing problems such as poor contact or scratching caused by deviations.

[0062] As an example, please refer to Figure 8 , Figure 11 and Figure 12 There is a gap between the roller 121 and the first connecting part 1241, which effectively avoids the axial end face of the roller 121 from directly contacting and rubbing against the inner wall of the first connecting part 1241 (the inner wall of the first connecting part 1241 is the side surface of the two first connecting parts 1241 facing each other) during the rotation of the roller 121 around the rotating connector 123. This avoids the additional resistance caused by friction from affecting the smoothness of the rotation of the roller 121, and also avoids the wear of the end face of the roller 121 and the inner wall of the first connecting part 1241 caused by friction, thus extending the service life of the roller 121 and the first connecting part 1241.

[0063] As one implementation method, please refer to Figure 8 and Figure 12 The elastic abutment 126 is a compression spring 126a. The roller assembly 12 also includes a first limiting post 127 and a second limiting post 128. The first limiting post 127 is fixed to the second connecting plate 125 and extends out of the side of the second connecting plate 125 facing the second connecting portion 1242. The second limiting post 128 is fixed to the second connecting portion 1242 and extends out of the side of the second connecting portion 1242 facing the second connecting plate 125. The second limiting post 128 is coaxial with and spaced apart from the first limiting post 127. The compression spring 126a is sleeved on the first limiting post 127 and the second limiting post 128.

[0064] In this embodiment, the first limiting post 127 and the second limiting post 128 can limit the extension and retraction direction of the compression spring 126a, effectively preventing the compression spring 126a from shifting laterally, tilting, or even falling off during compression or rebound, thereby ensuring the stability of the contact between the roller 121 and the guide rail 11. Moreover, when the first limiting post 127 and the second limiting post 128 abut against each other, they can limit the maximum compression of the compression spring 126a, thereby preventing the compression spring 126a from being over-compressed and exceeding its elastic deformation limit, thus preventing the compression spring 126a from permanent deformation or breakage.

[0065] In some implementation methods, please refer to Figure 8 and Figure 13 The first connecting plate 122 is inserted into the second connecting plate 125. In one embodiment, the first connecting plate 122 includes a plate body 1221 and a limiting body 1222. The plate body 1221 has a first side and a second side disposed opposite to each other. The limiting body 1222 protrudes from the first side of the plate body 1221. A rotating connector 123 passes through the plate body 1221 and is disposed near the second side of the plate body 1221. The second connecting plate 125 has insertion holes 1251, which are inserted into and cooperate with the limiting bodies 1222. As an example, the first connecting plate 122 includes multiple limiting bodies 1222, and correspondingly, the second connecting plate 125 has multiple insertion holes 1251, with each limiting body 1222 inserted into one of the insertion holes 1251. For example, the first connecting plate 122 includes three limiting bodies 1222, which are evenly spaced apart. Correspondingly, the second connecting plate 125 has three insertion holes 1251, which are evenly spaced and each hole 1251 is inserted into one of the three limiting bodies 1222. In this embodiment, the insertion of the limiting bodies 1222 into the insertion holes 1251 can quickly position the first connecting plate 122 to the preset position of the second connecting plate 125, simplifying the assembly process, improving assembly efficiency and accuracy, and reducing problems such as uneven rotation of the roller 121 and scratching against the guide rail 11 caused by assembly deviations.

[0066] As an example, after the first connecting plate 122 is inserted into the second connecting plate 125, the first connecting plate 122 and the second connecting plate 125 are welded and fixed.

[0067] As one implementation method, please refer to Figure 12 The second side end face of the plate 1221 is an arc surface 12211 concave to the loading hopper 30 to avoid structural interference during the lifting process.

[0068] In some implementation methods, please refer to Figure 8 The first connecting plate 122 has a first mounting hole 1223, which is an elongated hole. The first mounting holes 1223 of the two first connecting plates 122 are coaxially arranged. The first connecting part 1241 has a second mounting hole 1243, which is a round hole. The second mounting holes 1243 of the two first connecting parts 1241 are coaxially arranged. The rotating connector 123 passes through the first mounting holes 1223 of the two first connecting plates 122 and the second mounting holes 1243 of the two first connecting parts 1241.

[0069] If the first mounting hole 1223 is a round hole, the rotating connector 123 will be rigidly limited by the round hole and will not be able to move. This will cause the compression spring 126a to lose its extension space and thus lose its adaptive compensation capability for the deviation of the guide rail 11. This will cause the roller 121 to be in rigid contact with the guide rail 11, resulting in problems such as lifting jamming and sliding contact replacing rolling contact.

[0070] In this embodiment, when the compression spring 126a is compressed or rebounds, the connecting seat 124, the rotating connecting member 123 passing through the first connecting part 1241, and the roller 121 will move synchronously. The elongated first mounting hole 1223 provides the rotating connecting member 123 with a space for movement in the direction of movement, ensuring that the compression spring 126a can freely extend and retract, thereby ensuring smooth lifting and lowering of the loading hopper 30 and rolling contact between the roller 121 and the guide rail 11.

[0071] In some implementation methods, please refer to Figure 8 , Figure 11 and Figure 12 The rotating connector 123 includes a nut portion 1231 and a bolt portion 1232. The bolt portion 1232 passes through the first mounting hole 1223 and the second mounting hole 1243 and is locked to the nut portion 1231, thereby quickly and effectively positioning the roller 121 and the connecting seat 124 between the two first connecting plates 122.

[0072] As an example, please refer to Figure 8 , Figure 11 and Figure 12 The rotating connector 123 also includes a first washer 1233, a second washer 1234, and a third washer 1235, which are respectively inserted through the bolt portion 1232. The first washer 1233 is placed between the bolt portion 1232 and the first connecting plate 122, and the third washer 1235 is placed between the first connecting plate 122 and the nut portion 1231. This can prevent the bolt portion 1232 and the nut portion 1231 from causing extrusion damage to the surface of the first connecting plate 122 when tightening, and at the same time increase the contact area, disperse the pressure of the bolt portion 1232 and the nut portion 1231 on the first connecting plate 122, and prevent the first connecting plate 122 from deforming. There are two second gaskets 1234. The two second gaskets 1234 are respectively placed between the first connecting plate 122 and the first connecting part 1241. They can not only reduce the friction and wear between the first connecting plate 122 and the first connecting part 1241, but also compensate for the gap between the first connecting plate 122 and the first connecting part 1241 caused by processing errors, thereby improving the connection stability.

[0073] In some implementation methods, please refer to Figure 4 , Figure 6 , Figures 10 to 12The roller assembly 12 includes two rollers 121, which are spaced apart in the vertical direction. The two rollers 121 work together to more effectively limit the lateral deviation or swaying of the loading hopper 30 during the lifting process, prevent the loading hopper 30 from tilting or twisting, and ensure that the loading hopper 30 always lifts and lowers smoothly along the preset vertical path, reducing jamming or abnormal noise caused by guide deviation.

[0074] It should be noted that in other embodiments, the roller assembly may also include one, three or more rollers, which can be set according to the actual situation, and will not be elaborated here.

[0075] In some implementation methods, please refer to Figure 3 and Figure 5 The lifting mechanism 10 includes two guide rails 11 and two roller assemblies 12, with each guide rail 11 and roller assemblies 12 corresponding to the other. The two guide rails 11 are symmetrically arranged on opposite sides of the cabinet 20, and the two roller assemblies 12 are symmetrically arranged on opposite sides of the dispensing hopper 30. The symmetrically distributed guide rails 11 and roller assemblies 12 can evenly distribute the weight of the dispensing hopper 30 and the goods inside it to both sides of the cabinet 20, preventing excessive force on one side from causing deformation of the cabinet 20 or the guide rails 11. It can also prevent the dispensing hopper 30 from tilting or shifting due to uneven force on both sides, ensuring that the dispensing hopper 30 can be lifted and lowered smoothly. In the structure of this application, the inclined guide surface and the annular inclined surface cooperate to form a two-way constraint, which can offset the eccentric load through the inclined surfaces on both sides of the guide rail, preventing the rollers from getting stuck due to excessive force on one side.

[0076] In some implementation methods, please refer to Figure 8 , Figure 11 and Figure 12 The guide rail 11 also includes an arc-shaped guide surface 113, which connects the first guide surface 111 and the second guide surface 112. The bottom wall of the annular groove 1211 also includes an annular arc surface 1214, which connects the first annular inclined surface 1212 and the second annular inclined surface 1213.

[0077] In this embodiment, the arc-shaped guide surface 113 can improve the stress concentration at the connection position of the first guide surface 111 and the second guide surface 112, and the annular arc surface 1214 can improve the stress concentration at the connection position of the first annular inclined surface 1212 and the second annular inclined surface 1213, thereby avoiding cracking of the guide rail 11 or damage to the annular groove 1211 of the roller 121 caused by stress concentration during long-term use, and extending the service life of the guide rail 11 and the roller 121.

[0078] As an example, the included angle between the first annular inclined surface 1212 and the second annular inclined surface 1213 is 85 to 90 degrees. This ensures stable lifting and guiding of the loading hopper 30, avoids jamming or shaking, and facilitates manufacturing, thereby improving the reliability and practicality of the lifting mechanism 10. In some examples, the included angle between the first annular inclined surface 1212 and the second annular inclined surface 1213 can be, but is not limited to, 85, 86, 87, 88, 89, or 90 degrees, etc. Preferably, the included angle between the first annular inclined surface 1212 and the second annular inclined surface 1213 is 90 degrees. If the included angle is too small, the stress per unit area is large, which can easily lead to increased contact wear; if the included angle is too large, although the contact area increases, insufficient lateral constraint can easily cause sliding friction, which also increases the wear of the mechanism.

[0079] In some embodiments, the lifting mechanism 10 further includes a drive assembly 13 for driving the dispensing hopper 30 to move up and down within the cabinet 20.

[0080] As one implementation method, please refer to Figures 3 to 7 , Figure 9 and Figure 10 The drive assembly 13 includes a fixed base 131, a first transmission wheel 132, a second transmission wheel 133, a first synchronous belt 134, and a drive member 135. The fixed base 131 is fixed to the cabinet 20 and the guide rail 11 respectively. The first transmission wheel 132 and the second transmission wheel 133 are rotatably connected to the fixed base 131, and the second transmission wheel 133 and the first transmission wheel 132 are spaced apart in the vertical direction. The first synchronous belt 134 is drivenly connected to the first transmission wheel 132 and the second transmission wheel 133 respectively, and the first synchronous belt 134 is fixed to the dispensing hopper 30 through a fixing member 136. The drive member 135 is used to drive the first transmission wheel 132 to rotate so that the dispensing hopper 30 is raised and lowered. As an example, the first synchronous belt 134 is fixed between the fixing member 136 and the second connecting plate 125. In this embodiment, the drive assembly 13 can provide smooth lifting power for the dispensing hopper 30, and can also be configured with first synchronous belts 134 of different lengths to adapt to cabinets 20 of different heights.

[0081] As one implementation method, please refer to Figure 3 , Figure 5 and Figure 9The drive assembly 13 includes two fixed seats 131, two first drive wheels 132, two second drive wheels 133, and two first synchronous belts 134. The two fixed seats 131 are symmetrically arranged on opposite sides of the cabinet 20. Two guide rails 11 are correspondingly arranged with the two fixed seats 131 and are fixed to the opposite side of the two fixed seats 131. One of the first drive wheels 132 and one of the second drive wheels 133 are connected to one of the fixed seats 131, and the other first drive wheel 132 and the other second drive wheel 133 are connected to the other fixed seat 131. The two first drive wheels 132 are symmetrically arranged and fixedly connected by a connecting shaft 137, and the two second drive wheels 133 are symmetrically arranged. The drive member 135 is used to drive the connecting shaft 137 to rotate. In this embodiment, the two first synchronous belts 134 simultaneously drive the dispensing hopper 30 to move, so that the force on both sides of the dispensing hopper 30 is balanced and the lifting and lowering are more stable.

[0082] It should be noted that in other implementations, the driving component can also be other structures, which can be set according to the actual situation, and will not be elaborated here.

[0083] Please refer to Figures 1 to 2 The goods dispensing device 100 in this application embodiment includes a cabinet 20, a dispensing hopper 30, and a lifting mechanism 10 provided in any of the above embodiments.

[0084] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0085] The above embodiments merely illustrate preferred implementations of this application, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the scope of protection of this application. Therefore, the scope of protection of this patent application should be determined by the appended claims.

Claims

1. A lifting mechanism, characterized in that, Installed in goods dispensing equipment, including: A guide rail, fixed inside the cabinet of the goods dispensing equipment, includes a first guide surface and a second guide surface that extend obliquely towards each other and are vertically arranged; and A roller assembly includes at least one roller rotatably connected to a delivery hopper housed in the cabinet about its axis. The outer periphery of the roller has an annular groove that surrounds the roller axis and houses a portion of the guide rail. The two side walls of the annular groove are a first annular inclined surface and a second annular inclined surface that extend in opposite directions. When the delivery hopper moves up and down inside the cabinet, the first annular inclined surface rolls into contact with the first guide surface, and the second annular inclined surface rolls into contact with the second guide surface.

2. The lifting mechanism as described in claim 1, characterized in that, The roller assembly also includes: Two first connecting plates are spaced apart axially from the rollers and fixed to the discharge hopper; and The rotating connector passes through the two first connecting plates and is arranged in a one-to-one correspondence with the rollers; The roller is disposed between the two first connecting plates and is rotatably inserted through the corresponding rotating connector.

3. The lifting mechanism as described in claim 2, characterized in that, The roller assembly also includes: A connecting seat is disposed between two first connecting plates. The connecting seat includes two first connecting parts spaced apart and a second connecting part connected between the two first connecting parts. The roller is disposed between the two first connecting parts, and the rotating connector passes through the first connecting part. A second connecting plate is fixed to the discharging hopper, and two first connecting plates are fixed to the side of the second connecting plate opposite to the discharging hopper; and The elastic abutment abuts between the second connecting plate and the second connecting part.

4. The lifting mechanism as described in claim 3, characterized in that, The elastic abutment component is a compression spring; The roller assembly also includes: The first limiting post extends from the side of the second connecting plate facing the second connecting part; and The second limiting post extends out from the side of the second connecting part facing the second connecting plate. The second limiting post is coaxial with the first limiting post and is spaced apart. The compression spring is sleeved on the first limiting post and the second limiting post.

5. The lifting mechanism as described in claim 3, characterized in that, The first connecting plate includes a plate body and a limiting body. The plate body has a first side and a second side that are disposed opposite to each other. The limiting body protrudes from the first side of the plate body, and the end face of the second side of the plate body is an arc surface that is concave to the discharge hopper. The second connecting plate has a plug hole that engages with the limiting body.

6. The lifting mechanism as described in claim 3, characterized in that, The two first connecting plates are provided with coaxially arranged first mounting holes, which are elongated holes. Two first connecting portions are provided with coaxially arranged second mounting holes, which are circular holes. The rotating connector passes through the first assembly hole and the second assembly hole.

7. The lifting mechanism as described in claim 6, characterized in that, The rotating connector includes a nut portion and a bolt portion that passes through the first mounting hole and the second mounting hole and is locked to the nut portion; The rotating connector further includes a first washer, a second washer, and a third washer passing through the bolt portion. The first washer is placed between the bolt portion and the first connecting plate, the second washer is placed between the first connecting plate and the first connecting portion, and the third washer is placed between the first connecting plate and the nut portion.

8. The lifting mechanism as described in claim 1, characterized in that, The roller assembly includes two rollers, which are spaced apart in the vertical direction; and / or, The lifting mechanism includes two guide rails and two roller assemblies. The two guide rails are symmetrically arranged on opposite sides of the cabinet, and the two roller assemblies are symmetrically arranged on opposite sides of the unloading hopper.

9. The lifting mechanism as described in claim 1, characterized in that, The guide rail also includes an arc-shaped guide surface that connects the first guide surface and the second guide surface; The bottom wall of the annular groove also includes an annular arc surface connecting the first annular inclined surface and the second annular inclined surface; The angle between the first annular inclined plane and the second annular inclined plane is 85 degrees to 90 degrees.

10. A goods dispensing device, characterized in that, include: Cabinet; Shipping bucket; and The lifting mechanism as described in any one of claims 1 to 9.

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