Cylindrical spiral self-gravity compensating commodity vending machine

Abstract

The utility model relates to the technical field of commodity vending machine discloses a cylindrical helical self -gravity compensation position commodity vending machine, including, bearing mechanism, including the cylinder and the hinge in the cylinder outside by solenoid valve control openable and closable baffle, gravity compensation position mechanism, including the cylindrical cylinder of installation in the inner chamber of cylinder, the utility model discloses a double helix conveying system that constitutes by first spiral guide rail and second spiral guide rail, and the rotation clamping of first variable -pitch compression spring and second variable -pitch compression spring are matched, realize the helical self -gravity compensation of commodity, and the efficiency of replenishment is effectively promoted, and the cylindrical modeling of cylinder and customizable shell break through the traditional square cabinet body limit, make the equipment have functional and design aesthetic feeling, and the multistage buffer system that buffer block and spacing baffle constitute ensures the reduction of breakage rate when the special-shaped commodity is transported, and the gravity compensation position mechanism of modular design supports 3 5 layer flexible configuration, and can adapt to the different scene demand such as shopping mall, scenic spot.

Description

Technical Field

[0001] This utility model relates to the technical field of vending machines, and in particular to a cylindrical spiral self-gravity-assisted vending machine. Background Technology

[0002] A replenishment vending machine is a flexible terminal device that adapts to retail scenarios. Its core function is to automatically identify empty shelves and quickly allocate replacement products through modular product aisle design and dynamic inventory management system, ensuring that the vending machine can still keep the shelves full even after the main products are sold out.

[0003] Currently, most vending machines on the market use a traditional cabinet structure. The replenishment mechanism is limited to a linear motion mode of forward and backward translation. This not only fails to meet the spiral gravity replenishment requirements of irregularly shaped products such as cylinders and spheres, but also results in a highly homogenized appearance. The square metal cabinet combined with the monotonous arrangement of product channels makes it difficult to achieve efficient rolling replenishment of beverage cans / bottles, and it lacks the aesthetic design required for modern consumer scenarios. This technological limitation means that when the equipment is used in places that emphasize experience, such as shopping malls and scenic spots, it affects both replenishment efficiency and visual appeal. Utility Model Content

[0004] In view of the problems existing in the above-mentioned vending machines, this utility model is proposed.

[0005] Therefore, the purpose of this utility model is to provide a cylindrical spiral self-gravity replenishing vending machine. Its purpose is to achieve efficient replenishment of goods and personalized appearance design of the equipment through a cylindrical spiral conveying structure and modular design, which significantly improves replenishment efficiency and visual appeal.

[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution: including,

[0007] The load-bearing mechanism includes a cylinder and an openable baffle hinged to the outside of the cylinder and controlled by a solenoid valve.

[0008] The gravity compensation mechanism includes a cylindrical tube installed in the inner cavity of the cylinder, a spiral gravity conveying assembly disposed on the outside of the cylindrical tube, a bottom release assembly disposed in the inner cavity of the cylinder, and an anti-collision buffer assembly disposed in the inner cavity of the bottom release assembly.

[0009] As a preferred embodiment of the cylindrical spiral self-gravity-assisted vending machine of this utility model, the spiral gravity conveying assembly includes a first spiral guide rail fixedly sleeved on the outside of the cylindrical tube, a second spiral guide rail fixedly installed on the outside of the first spiral guide rail, a first servo motor fixedly installed in the inner cavity of the first spiral guide rail, and a first variable pitch compression spring fixedly connected to the output end of the first servo motor.

[0010] As a preferred embodiment of the cylindrical spiral self-gravity-assisted vending machine of this utility model, the spiral gravity conveying assembly further includes a second servo motor fixedly installed in the inner cavity of the second spiral guide rail, a second variable pitch compression spring fixedly installed in the output end of the second servo motor, and a guide column hinged to the inner cavities of the first spiral guide rail and the second spiral guide rail to assist the water bottle in moving downwards quickly.

[0011] As a preferred embodiment of the cylindrical spiral self-gravity-assisted vending machine of this utility model, the gravity-assisted mechanism further includes a first discharging slot opened on the outside of the cylindrical tube and close to the first variable pitch compression spring, a second discharging slot opened on the outside of the cylindrical tube and close to the second variable pitch compression spring, a buffer block fixedly installed on the inner wall of the cylindrical tube, and a connecting inclined plate fixedly installed on the outside of the second spiral guide rail and communicating with the second discharging slot.

[0012] As a preferred embodiment of the cylindrical spiral self-gravity-assisted vending machine of this utility model, the number of buffer blocks is two, and they are respectively located at the first and second dispensing slots.

[0013] As a preferred embodiment of the cylindrical spiral self-gravity-assisted vending machine of this utility model, the bottom release assembly includes a dropping compartment fixedly installed in the inner cavity of the cylinder, and a ring fixedly installed on the top of the dropping compartment and connected to the cylindrical cylinder by bolts.

[0014] As a preferred embodiment of the cylindrical spiral self-gravity-assisted vending machine of this utility model, the bottom release component further includes a dispensing port opened on the outside of the dispensing compartment, and limiting bars that are fixed in a ring shape to the inner wall of the dispensing compartment.

[0015] As a preferred embodiment of the cylindrical spiral self-gravity-assisted vending machine of this utility model, the anti-collision buffer assembly includes a silicone buffer pad fixedly installed in the inner cavity of the cargo compartment, a multi-stage deceleration baffle fixedly installed on the top of the silicone buffer pad, and a support ring fixedly installed on the top of the multi-stage deceleration baffle.

[0016] As a preferred embodiment of the cylindrical spiral self-gravity-assisted vending machine of this utility model, the anti-collision buffer assembly further includes a pneumatic variable damper fixedly installed on the top of the silicone buffer pad, and a shock-absorbing plate fixedly installed on the top of the pneumatic variable damper.

[0017] As a preferred embodiment of the cylindrical spiral self-gravity replenishing vending machine of this utility model, the supporting mechanism further includes a screen fixedly installed on the outside of the cylinder, and a side door hinged to the outside of the cylinder for replenishment and maintenance.

[0018] The beneficial effects of this utility model are as follows: Through the double spiral conveying system composed of the first spiral guide rail and the second spiral guide rail, and with the rotational clamping of the first variable pitch compression spring and the second variable pitch compression spring, the spiral gravity of the goods is used to fill the gap, effectively improving the replenishment efficiency. The cylindrical shape of the cylinder and the customizable shell break through the limitations of the traditional square cabinet, making the equipment both functional and aesthetically pleasing. The multi-level buffer system composed of buffer blocks and limit bars ensures that the damage rate is reduced when transporting irregularly shaped goods. The modular design of the gravity filling mechanism supports 3-5 layers of flexible configuration, which can be adapted to the needs of different scenarios such as shopping malls and scenic spots. It not only solves the problem of filling irregularly shaped goods, but also realizes the differentiated design of the equipment appearance. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0021] Figure 2 This is a partial sectional view of the overall structure of this utility model.

[0022] Figure 3 This is a schematic diagram of the spiral gravity conveying component of this utility model.

[0023] Figure 4 This is a schematic plan view of the spiral gravity conveying component of this utility model.

[0024] Figure 5 This is a partial cross-sectional view of the gravity compensation mechanism of this utility model.

[0025] Figure 6 This is a cross-sectional view of the anti-collision buffer component of this utility model.

[0026] Figure 7 This is a schematic diagram of the overall structure of this utility model from another perspective.

[0027] In the picture:

[0028] 100. Load-bearing mechanism; 110. Cylinder body; 120. Openable baffle; 130. Screen; 140. Side-opening door;

[0029] 200. Gravity compensation mechanism; 210. Cylindrical tube; 220. Spiral gravity conveying assembly; 221. First spiral guide rail; 222. Second spiral guide rail; 223. First servo motor; 224. First variable pitch compression spring; 225. Second servo motor; 226. Second variable pitch compression spring; 227. Guide column; 230. Bottom release assembly; 231. Drop compartment; 232. Ring; 233. Pick-up port; 234. Limiting stop bar; 240. Anti-collision buffer assembly; 241. Silicone buffer pad; 242. Multi-stage deceleration baffle; 243. Support ring; 244. Pneumatic variable damper; 245. Shock absorber; 250. First drop slot; 260. Second drop slot; 270. Buffer block; 280. Connecting inclined plate. Detailed Implementation

[0030] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0031] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0032] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0033] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not adhering to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, actual manufacturing should include the three-dimensional spatial dimensions of length, width, and depth.

[0034] Example 1

[0035] Reference Figures 1 to 7 This is the first embodiment of the present invention, which provides a cylindrical spiral-type gravity-assisted vending machine. This device includes...

[0036] The supporting mechanism 100 includes a cylinder 110 and an openable baffle 120 hinged to the outside of the cylinder 110 and controlled by a solenoid valve.

[0037] The gravity compensation mechanism 200 includes a cylindrical tube 210 installed in the inner cavity of the cylinder 110, a spiral gravity conveying assembly 220 disposed on the outside of the cylindrical tube 210, a bottom release assembly 230 disposed in the inner cavity of the cylinder 110, and an anti-collision buffer assembly 240 disposed in the inner cavity of the bottom release assembly 230.

[0038] The coordinated design of the bearing mechanism 100 and the gravity replenishment mechanism 200 enables the automated storage and replenishment process of cylindrical goods. The cylinder 110 provides a stable support structure, while the electromagnetic control of the openable baffle 120 facilitates the removal of goods after they fall. The spiral gravity conveying component 220 uses the weight of the goods to achieve continuous replenishment. Combined with the stepped buffer design of the bottom release component 230, the reliability of goods conveying and the utilization rate of equipment space are significantly improved.

[0039] Specifically, the spiral gravity conveying assembly 220 includes a first spiral guide rail 221 fixedly sleeved on the outside of the cylindrical tube 210, a second spiral guide rail 222 fixedly installed on the outside of the first spiral guide rail 221, a first servo motor 223 fixedly installed in the inner cavity of the first spiral guide rail 221, and a first variable pitch compression spring 224 fixedly connected to the output end of the first servo motor 223. The spiral gravity conveying assembly 220 also includes a second servo motor 225 fixedly installed in the inner cavity of the second spiral guide rail 222, a second variable pitch compression spring 226 fixedly installed in the output end of the second servo motor 225, and a guide column 227 hinged to the inner cavities of the first spiral guide rail 221 and the second spiral guide rail 222 to assist the water bottle in moving rapidly downward.

[0040] The first spiral guide rail 221 and the second spiral guide rail 222 form a double spiral system, and the nested layout creates an efficient three-dimensional conveying channel. The first variable pitch compression spring 224 driven by the first servo motor 223 and the second variable pitch compression spring 226 driven by the second servo motor 225 form a dynamically adjustable channel spacing. The spiral structure actively pulls the goods into the spring gap. After the goods enter the gap between the springs by their own weight, the variable pitch structure of the spring forms a progressive clamping during rotation, ensuring that the goods maintain a stable posture during the conveying process. Due to the change in the spring pitch, the goods will naturally detach from the spring gap and slide out. This structural design not only ensures the continuity of goods conveying, but also accurately controls the release timing, ensuring that only one item falls at a time. It also ensures the stability of the goods posture during the conveying process through the self-centering characteristics of the first spiral guide rail 221 and the second spiral guide rail 222, and can automatically guide the goods to the drop area during rotation.

[0041] Furthermore, the gravity compensation mechanism 200 also includes a first loading slot 250 located on the outside of the cylindrical tube 210 and near the first variable pitch compression spring 224, a second loading slot 260 located on the outside of the cylindrical tube 210 and near the second variable pitch compression spring 226, a buffer block 270 fixedly installed on the inner wall of the cylindrical tube 210, and a connecting inclined plate 280 fixedly installed on the outside of the second spiral guide rail 222 and communicating with the second loading slot 260. There are two buffer blocks 270, which are located at the first loading slot 250 and the second loading slot 260 respectively.

[0042] Among them, the first drop slot 250 and the second drop slot 260 form a double drop slot, and the diversion design realizes the multi-path precise delivery of goods. The elastic contact surface of the buffer block 270 provides gradual deceleration when the goods leave the spiral track. The adjustable slope of the connecting inclined plate 280 allows the system to adapt to packaging specifications of different heights. This modular outlet design greatly reduces the equipment modification cost.

[0043] Symmetrically distributed buffer blocks 270 form an energy absorption area at the cargo drop chute opening. Through asymmetric damping characteristics, they handle the cargo flow of the main and secondary channels respectively, which not only avoids the collision risk when cargo falls simultaneously from both channels, but also guides the cargo to form an orderly arrangement through the curved shape of the buffer blocks 270, creating ideal working conditions for subsequent precise release.

[0044] Preferably, the bottom release assembly 230 includes a cargo drop chamber 231 fixedly installed in the inner cavity of the cylinder 110, and a ring 232 fixedly installed on the top of the cargo drop chamber 231 and connected to the cylindrical cylinder 210 by bolts. The bottom release assembly 230 also includes a cargo retrieval port 233 opened on the outside of the cargo drop chamber 231, and a limiting stop bar 234 fixed in a ring on the inner wall of the cargo drop chamber 231.

[0045] Among them, the quick-assembly and disassembly structure of the unloading compartment 231 and the ring 232 realizes the physical isolation between the maintenance channel and the work area. The modular design of bolt connection not only ensures the structural strength, but also allows key components to be replaced independently. This modular architecture significantly shortens the downtime during equipment maintenance and is particularly suitable for high-frequency commercial scenarios. The limit bar 234 of the ring array forms a three-dimensional guide grid in the area of ​​the picking port 233. Through multi-level contact points, it disperses the impact force of the goods, maintains the positioning accuracy of the goods in the final release stage, and absorbs the remaining kinetic energy through elastic deformation, ensuring that the goods arrive at the picking area in an ideal posture.

[0046] Furthermore, the support mechanism 100 also includes a screen 130 fixedly installed on the outside of the cylinder 110, and a side door 140 hinged to the outside of the cylinder 110 for replenishment and maintenance.

[0047] Among them, the human-computer interaction design of screen 130 and side door 140 has achieved functional zoning optimization. Screen 130 integrates status monitoring and interactive interface, while the staggered hinge design of side door 140 achieves the maximum opening angle in a limited space. This ergonomic layout meets the dual needs of user operation and maintenance personnel.

[0048] It should be noted that the gravity compensation mechanism 200 can be expanded to a maximum of five layers, and can also be flexibly assembled into different configurations of 3-5 layers according to actual needs. Its cylindrical shell 110 can be customized according to the shape of the product bottle. This expandable and customizable feature enables the equipment to adapt to the needs of multiple scenarios such as convenience stores and cinemas.

[0049] In use, after the goods are loaded into the cylinder 110 through the side door 140, they enter the conveying channel formed by the first spiral guide rail 221 and the second spiral guide rail 222 under the action of gravity. The first servo motor 223 and the second servo motor 225 drive the first variable pitch compression spring 224 and the second variable pitch compression spring 226 to rotate, stably conveying the goods to the first drop slot 250 or the second drop slot 260. After the buffer block 270 buffers and decelerates the goods, the goods slide into the drop compartment 231 through the connecting inclined plate 280 and are accurately positioned under the guidance of the limit stop bar 234. After the user completes the purchase operation through the screen 130, the solenoid valve controls the openable baffle 120 to open, and the goods are smoothly taken out from the retrieval port 233.

[0050] In summary, the first spiral guide rail 221, through the coordinated operation of its spiral structure and the first variable pitch compression spring 224, achieves active capture and progressive clamping and conveying of goods. The second spiral guide rail 222, with its nested layout design, together with the second variable pitch compression spring 226, forms an auxiliary conveying channel, effectively improving replenishment efficiency. The buffer block 270 is set at the first and second drop slots 250 and 260, ensuring smooth transition of goods through a progressive buffer design. The limiting bar 234 set in the drop compartment 231 forms a ring-shaped guiding structure, ensuring the final positioning accuracy of the goods. The reasonable layout of the openable baffle 120 and the screen 130 realizes a convenient user interaction experience, significantly improves the reliability of goods conveying, and effectively improves space utilization. It is suitable for automated sales scenarios of high-turnover goods such as beverages.

[0051] Example 2

[0052] Reference Figure 5 and Figure 6 This is the second embodiment of the present invention. The difference between this embodiment and the first embodiment is that it provides an anti-collision system with graded buffering function, which realizes the gradient dissipation of impact energy during the falling of goods through a multi-level linkage buffering mechanism.

[0053] Furthermore, the anti-collision buffer assembly 240 includes a silicone buffer pad 241 fixedly installed in the inner cavity of the cargo compartment 231, a multi-stage deceleration baffle 242 fixedly installed on top of the silicone buffer pad 241, and a support ring 243 fixedly installed on top of the multi-stage deceleration baffle 242. The anti-collision buffer assembly 240 also includes a pneumatic variable damper 244 fixedly installed on top of the silicone buffer pad 241, and a shock-absorbing plate 245 fixedly installed on top of the pneumatic variable damper 244.

[0054] The composite buffer layer, consisting of silicone buffer pad 241 and multi-stage deceleration baffle 242, absorbs impact through a dual energy conversion mechanism of material deformation and structural deformation. The mesh support structure of the support ring 243 maintains the overall rigidity of the buffer system while allowing local deformation, thus achieving gradient dissipation of dynamic impact loads. The pressure feedback characteristics of the pneumatic variable damper 244 can automatically adjust the buffering force according to the weight of the product, forming a buffer system with the shock absorber 245. This active impact protection mechanism can adapt to different sizes of products, from mini cans to family packs, avoiding the problems of over-buffering or under-buffering caused by traditional fixed damping.

[0055] In use, when goods fall from the spiral gravity conveyor assembly 220 through the first drop slot 250 or the second drop slot 260, they first come into contact with the shock absorber 245 area and absorb the initial impact kinetic energy through elastic deformation. Then, the pneumatic variable damper 244 dynamically adjusts the damping coefficient according to the weight of the goods fed back by the pressure sensor to control the falling speed. The stepped slope of the multi-stage deceleration baffle 242 guides the goods to gradually decelerate. Finally, the silicone buffer pad 241 completes the flexible absorption of the remaining energy. The support ring 243 provides radial constraint throughout the process to prevent the goods from deflecting and colliding with the warehouse wall.

[0056] In summary, a three-level intelligent buffer system was constructed through the coordinated design of material properties and mechanical structure, which significantly reduced the product damage rate. The active adjustment function of the pneumatic variable damper 244 enabled precise protection of products of different weights.

[0057] Example 3

[0058] Reference Figures 1 to 7 This is the third embodiment of the present invention. Unlike the previous embodiment, this embodiment provides a method of use, including a cylindrical spiral self-gravity-assisted vending machine, the method comprising the following steps:

[0059] S1: After goods are loaded through the side door 140, the system automatically detects the inventory and displays the status on the screen 130. The first servo motor 223 and the second servo motor 225 drive the first variable pitch compression spring 224 and the second variable pitch compression spring 226 to enter the standby state, ready to receive goods.

[0060] S2: The goods slide into the gap of the rotating variable pitch compression spring by gravity. The spring actively captures the goods through a unique spiral structure, forming a flexible clamping state. The guide column 227 assists in adjusting the posture of the goods to ensure smooth delivery.

[0061] S3: The captured goods slide down steadily as the spring rotates. The variable pitch characteristic of the spring automatically adapts to the size of the goods, providing sufficient clamping force to prevent them from falling off, while avoiding excessive squeezing that could damage the packaging.

[0062] S4: When the goods rotate to the first drop slot 250 and the second drop slot 260, the spring pitch changes and causes them to disengage naturally. After being slowed down by the buffer block 270, they smoothly enter the drop compartment 231. The limit bar 234 ensures the final positioning accuracy.

[0063] S5: After the user completes the purchase through the screen 130, the solenoid valve controls the opening and closing of the baffle 120, and the goods slide out accurately from the picking port 233.

[0064] In summary, this method ensures the stability and accuracy of goods transportation through gravity compensation and buffer design, while the modular structure simplifies the loading and maintenance process, making it suitable for high-frequency, multi-category retail scenarios.

[0065] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape and proportion of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of this utility model. The order or sequence of any process or method steps may be changed or rearranged according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structural equivalents but also equivalent structures. Without departing from the scope of this invention, other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments. Therefore, this invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0066] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the best mode of carrying out the present invention as currently considered, or those features that are not relevant to implementing the present invention) may be omitted.

[0067] It should be understood that numerous specific implementation decisions can be made during the development of any practical implementation, such as in any engineering or design project. Such development efforts may be complex and time-consuming, but for those skilled in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.

[0068] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A cylindrical spiral-type gravity-assisted vending machine, characterized in that: include, The support mechanism (100) includes a cylinder (110) and an openable baffle (120) hinged to the outside of the cylinder (110) and controlled by a solenoid valve; The gravity compensation mechanism (200) includes a cylindrical tube (210) installed in the inner cavity of the cylinder (110), a spiral gravity conveying assembly (220) disposed on the outside of the cylindrical tube (210), a bottom release assembly (230) disposed in the inner cavity of the cylinder (110), and an anti-collision buffer assembly (240) disposed in the inner cavity of the bottom release assembly (230).

2. The cylindrical spiral self-gravity-assisted vending machine according to claim 1, characterized in that: The spiral gravity conveying assembly (220) includes a first spiral guide rail (221) fixedly sleeved on the outside of the cylindrical tube (210), a second spiral guide rail (222) fixedly installed on the outside of the first spiral guide rail (221), a first servo motor (223) fixedly installed in the inner cavity of the first spiral guide rail (221), and a first variable pitch compression spring (224) fixedly connected to the output end of the first servo motor (223).

3. The cylindrical spiral self-gravity-assisted vending machine according to claim 2, characterized in that: The spiral gravity conveying assembly (220) further includes a second servo motor (225) fixedly installed in the inner cavity of the second spiral guide rail (222), a second variable pitch compression spring (226) fixedly installed in the output end of the second servo motor (225), and a guide column (227) hinged to the inner cavity of the first spiral guide rail (221) and the second spiral guide rail (222) to assist the water bottle to move rapidly downward.

4. The cylindrical spiral self-gravity-assisted vending machine according to claim 3, characterized in that: The gravity compensation mechanism (200) further includes a first cargo slot (250) opened on the outside of the cylindrical tube (210) and close to the first variable pitch compression spring (224), a second cargo slot (260) opened on the outside of the cylindrical tube (210) and close to the second variable pitch compression spring (226), a buffer block (270) fixedly installed on the inner wall of the cylindrical tube (210), and a connecting inclined plate (280) fixedly installed on the outside of the second spiral guide rail (222) and communicating with the second cargo slot (260).

5. The cylindrical spiral self-gravity-assisted vending machine according to claim 4, characterized in that: There are two buffer blocks (270), which are located at the first discharge slot (250) and the second discharge slot (260) respectively.

6. The cylindrical spiral self-gravity-assisted vending machine according to claim 5, characterized in that: The bottom release assembly (230) includes a cargo drop chamber (231) fixedly installed in the inner cavity of the cylinder (110), and a ring (232) fixedly installed on the top of the cargo drop chamber (231) and connected to the cylindrical cylinder (210) by bolts.

7. The cylindrical spiral self-gravity-assisted vending machine according to claim 6, characterized in that: The bottom release assembly (230) also includes a retrieval port (233) opened on the outside of the drop compartment (231) and a limiting stop (234) fixed in a ring on the inner wall of the drop compartment (231).

8. The cylindrical spiral self-gravity-assisted vending machine according to claim 7, characterized in that: The anti-collision buffer assembly (240) includes a silicone buffer pad (241) fixedly installed in the inner cavity of the cargo drop compartment (231), a multi-stage deceleration baffle (242) fixedly installed on the top of the silicone buffer pad (241), and a support ring (243) fixedly installed on the top of the multi-stage deceleration baffle (242).

9. The cylindrical spiral self-gravity-assisted vending machine according to claim 8, characterized in that: The impact-resistant buffer assembly (240) also includes a pneumatic variable damper (244) fixedly installed on top of the silicone buffer pad (241), and a shock-absorbing plate (245) fixedly installed on top of the pneumatic variable damper (244).

10. The cylindrical spiral self-gravity-assisted vending machine according to claim 9, characterized in that: The carrying mechanism (100) also includes a screen (130) fixedly installed on the outside of the cylinder (110) and a side door (140) hinged to the outside of the cylinder (110) for replenishment and maintenance.

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