A bead storage cabinet

Abstract

This utility model discloses a bead storage and retrieval cabinet, designed for self-service bead storage and retrieval. The technical solution is as follows: A bead storage and retrieval cabinet includes a cabinet body, on which a bead storage unit, a bead retrieval unit, and a circulation unit are provided. The circulation unit includes a storage tank and a return tank, with the storage tank located above the return tank, and beads in the storage tank flowing into the return tank. The bead storage unit includes a bead storage slot and a first bead conveying device, which receives beads from the storage slot and conveys them one by one to the storage slot. The bead retrieval unit includes a bead retrieval slot and a second bead conveying device, which receives beads from the return tank and conveys them one by one to the retrieval slot. This invention belongs to the field of game machine technology.

Description

Technical Field

[0001] This utility model belongs to the field of game machine technology, and more specifically, relates to a bead storage cabinet. Background Technology

[0002] Currently, there are many pinball game machines on the market. Before playing, you usually need to exchange for pinballs. After the game, if there are any pinballs left, you can return them.

[0003] Most merchants assign sales staff to handle marble exchange and return, relying on them to sort the marbles and complete the deposit and retrieval. This method is inefficient, inaccurate, and prone to marble sorting errors. Utility Model Content

[0004] The main purpose of this utility model is to provide a bead storage and retrieval cabinet, which allows for self-service bead storage and retrieval.

[0005] According to a first aspect of the present invention, a bead storage and retrieval cabinet is provided, comprising a cabinet body, wherein the cabinet body is provided with a bead storage unit, a bead retrieval unit and a circulation unit;

[0006] The circulation unit includes a storage tank and a return tank. The storage tank is located above the return tank, and the beads in the storage tank will flow into the return tank.

[0007] The bead storage unit includes a bead storage trough and a first bead conveying device, which receives the beads from the bead storage trough and conveys them one by one to the storage trough.

[0008] The bead-retrieving unit includes a bead-retrieving groove and a second bead-conveying device. The second bead-conveying device receives the beads from the return groove and conveys them one by one to the bead-retrieving groove.

[0009] In the aforementioned bead storage cabinet, the bottom of the bead storage trough is provided with a first slope, and the lower end of the first slope is connected to a first screening screen. Beads smaller than or equal to a preset diameter can pass through the first screening screen. A guide plate is provided below the first screening screen. The guide plate is inclined in a first direction. After the beads pass through the first screening screen, they fall onto the guide plate, and the guide plate guides the beads to the first bead conveying device.

[0010] In the aforementioned bead storage cabinet, a plurality of guide grooves are arranged on the guide plate. The guide grooves extend along the first direction. A screening slit is provided at the bottom of the guide groove. A recycling trough is provided below the screening slit. Beads smaller than a preset diameter can pass through the screening slit and fall into the recycling trough.

[0011] In the aforementioned bead storage cabinet, the first bead conveying device includes a base, a groove on the base, a turntable in the groove, and a plurality of bead pushing grooves evenly distributed around the outer edge of the turntable along its axis.

[0012] The base is provided with a limiting part and a bead guiding part, and the limiting part and the bead guiding part form a bead outlet channel. The bead in the bead pushing groove is blocked by the bead guiding part and enters the bead outlet channel.

[0013] The bead outlet channel is arranged at an incline, the base is provided with a bead outlet pipe, the upper end of the bead outlet pipe is provided with a counting module, the lower end of the bead outlet pipe is connected to the upper end of the bead outlet channel, and the lower end of the bead outlet pipe is connected to the groove.

[0014] The base is provided with a pusher block that can swing elastically. The pusher block can partially enter the bead outlet channel. The pusher block includes a first contact surface and a second contact surface. When the pusher block is partially located in the bead outlet channel, the first contact surface is used to contact the newly entered beads in the bead outlet channel, and the second contact surface is used to block the beads accumulated in the bead outlet channel.

[0015] In the aforementioned bead storage cabinet, the bead guide section includes two bead guide plates arranged at intervals along the axial direction of the turntable. The distance between the two bead guide plates is adapted to the thickness of the turntable. The turntable passes between the two bead guide sections to allow the beads in the bead pushing groove to enter the bead exit channel.

[0016] The limiting part includes two limiting plates arranged at intervals along the axial direction of the turntable. The gap between the two limiting plates allows the push block to move so that the push block enters the ball outlet channel.

[0017] In the aforementioned bead storage cabinet, the push block is hinged to the base, and a first spring connects the push block to the base.

[0018] In the aforementioned bead storage cabinet, a positioning block is provided on the base, the positioning block is located between the two limiting plates, and the first contact surface can abut against the positioning block.

[0019] In the aforementioned bead storage cabinet, the bead pushing groove is a U-shaped groove, and the two side walls of the bead pushing groove are sequentially divided into a first side wall and a second side wall along the rotation direction of the turntable, with the length of the first side wall being less than the length of the second side wall.

[0020] In the aforementioned bead storage cabinet, the base is provided with an inclined mounting surface, and a combination block is provided on the mounting surface. The combination block constructs the groove on the mounting surface, and the limiting part and the bead guiding part are both provided on the mounting surface.

[0021] It also includes a cover plate, which covers the bead outlet channel and is opposite to the mounting surface.

[0022] In the aforementioned bead storage cabinet, the bead outlet pipe is provided with a bead outlet notch and a detection notch, the bead outlet notch and the detection notch are arranged opposite to each other, and the counting module is set in the detection notch.

[0023] One of the above-described technical solutions of this utility model has at least one of the following advantages or beneficial effects:

[0024] In this invention, consumers can store beads in a storage slot. After placing the beads in the storage slot, the beads will enter a first bead conveying device, which will transport the beads one by one to a storage slot. During this process, the device will count the beads to accurately determine the number of beads stored. The beads in the storage slot will then flow to a return slot and enter a second bead conveying device. When the consumer wants to retrieve a bead, the second bead conveying device will start, transporting the beads one by one to a retrieval slot. This process will also count the beads. Once a predetermined number is reached, the second bead conveying device will stop operating, and the consumer can retrieve the beads from the retrieval slot. This achieves self-service bead storage and retrieval, which is highly efficient and accurate in quantity. Attached Figure Description

[0025] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0026] Figure 1 This is a schematic diagram of the structure of the first embodiment of the present utility model;

[0027] Figure 2 This is a schematic diagram of the internal structure of the cabinet according to the first embodiment of this utility model;

[0028] Figure 3 This is a schematic diagram of the structure of the bead storage unit according to the first embodiment of this utility model;

[0029] Figure 4 This is a schematic diagram of the structure of the bead storage unit after removing the first bead conveying device according to the first embodiment of this utility model;

[0030] Figure 5 This is a schematic diagram of the structure of the first bead conveying device according to the first embodiment of this utility model;

[0031] Figure 6 This is the first embodiment of the present utility model. Figure 5 A schematic diagram of the structure after removing the baffle and the flow divider;

[0032] Figure 7 This is the first embodiment of the present utility model. Figure 6 A schematic diagram of the structure after removing the surrounding plate and the bead outlet pipe;

[0033] Figure 8 This is the first embodiment of the present utility model. Figure 7 A schematic diagram of the structure after removing the cover plate;

[0034] Figure 9 This is the first embodiment of the present utility model. Figure 8 Exploded structural diagram;

[0035] Figure 10 This is a schematic diagram of the counting module according to the first embodiment of the present invention;

[0036] Figure 11 This is a schematic diagram of the bead-retrieving unit according to the first embodiment of this utility model.

[0037] The figure labels for each figure are as follows:

[0038] 1. Cabinet;

[0039] 2. Bead storage unit; 21. Bead storage trough; 211. First slope; 212. First screening screen; 213. Guide plate; 214. Guide chute; 215. Screening slot; 22. Recycling trough; 23. Contact wheel; 24. Motor module; 241. Cam;

[0040] 3. Bead-retrieving unit; 31. Bead-retrieving groove;

[0041] 4. Circulation unit; 41. Storage tank; 42. Return tank; 43. First guide plate; 44. Second guide plate;

[0042] 5. First bead conveying device;

[0043] 51. Base; 511. Groove; 512. Mounting surface; 513. Assembly block; 514. Cover plate; 515. Enclosure plate; 516. Baffle plate; 517. Ball notch; 518. Diverter plate;

[0044] 52. Turntable; 521. Ball pusher groove; 522. First side wall; 523. Second side wall;

[0045] 53. Limiting part; 531. Limiting plate;

[0046] 54. Bead guide section; 541. Bead guide plate;

[0047] 55. Bead exit channel;

[0048] 56. Bead outlet pipe; 561. Bead outlet notch; 562. Detection notch;

[0049] 57. Counting module; 571. Bracket; 572. Photoelectric sensor; 573. Roller; 574. Second spring;

[0050] 58. Push block; 581. First contact surface; 582. Second contact surface; 583. First spring; 584. Connecting block;

[0051] 59. Positioning block;

[0052] 6. Second bead conveying device. Detailed Implementation

[0053] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0054] The following disclosure provides many different implementation methods or examples for different solutions to implement this utility model.

[0055] Reference Figures 1 to 11 As shown, a bead storage and retrieval cabinet includes a cabinet body 1, on which a bead storage unit 2, a bead retrieval unit 3, and a circulation unit 4 are provided;

[0056] The circulation unit 4 includes a storage tank 41 and a return tank 42. The storage tank 41 is located above the return tank 42, and the beads in the storage tank 41 will flow into the return tank 42.

[0057] The bead storage unit 2 includes a bead storage groove 21 and a first bead conveying device 5. The first bead conveying device 5 receives the beads from the bead storage groove 21 and conveys them one by one to the storage groove 41.

[0058] The bead-retrieving unit 3 includes a bead-retrieving groove 31 and a second bead-conveying device 6. The second bead-conveying device 6 receives the beads from the return groove 42 and conveys them one by one to the bead-retrieving groove 31.

[0059] Consumers can store beads in the bead storage slot 21. After placing the beads in the slot, they enter the first bead conveying device 5, which then conveys the beads one by one to the storage slot 41. During this process, the device counts the beads to accurately determine the number of beads stored. The beads in the storage slot 41 then flow to the return slot 42 and enter the second bead conveying device 6. When a consumer wants to retrieve a bead, the second bead conveying device 6 is activated, conveying the beads one by one to the retrieval slot 31. This process also counts the beads, and once a predetermined number is reached, the second bead conveying device 6 stops operating, allowing the consumer to retrieve the beads from the retrieval slot 31. This achieves self-service bead storage and retrieval, which is efficient and accurate.

[0060] Reference Figure 1 , Figures 3 to 4As shown, the bead storage slot 21 is located on the front side of the cabinet 1, making it convenient for consumers to put beads in.

[0061] Specifically, the bottom of the bead storage tank 21 is provided with a first slope 211, and the lower end of the first slope 211 is connected to a first screening screen 212. After the beads are put into the bead storage tank 21, they will roll along the first slope 211 onto the first screening screen 212. Beads smaller than or equal to the preset diameter can pass through the first screening screen 212, thereby filtering out beads with too large a diameter. Below the first screening screen 212 is a guide plate 213. The guide plate 213 is inclined in the first direction. After the beads pass through the first screening screen 212, they fall onto the guide plate 213. The guide plate 213 guides the beads to the first bead conveying device 5.

[0062] The first screening mesh 212 has strip-shaped holes. By controlling the width of the strip-shaped holes, the diameter of the beads that can pass through the first screening mesh 212 can be controlled.

[0063] In this embodiment, a plurality of guide grooves 214 are arranged on the guide plate 213. The guide grooves 214 extend along the first direction. The bottom of the guide grooves 214 is provided with a screening slit 215, so that the guide plate 213 becomes a second screening screen. A recycling trough 22 is provided below the screening slit 215. Beads smaller than the preset diameter can pass through the screening slit 215 and fall into the recycling trough 22, thereby screening out beads with too small a diameter. The diameter of the beads left in the guide grooves 214 can be controlled by controlling the width of the screening slit 215.

[0064] Based on this, the first screening mesh 212 performs the first screening, while the screening slit 215 performs the second screening. The first screening removes beads with excessively large diameters, and the second screening removes beads with excessively small diameters, so that the diameter of the stored beads meets the requirements.

[0065] In this embodiment, the first screening mesh 212 is inclined upward in a direction away from the first slope 211, so as to ensure that the beads will roll onto the strip holes of the first screening mesh 212.

[0066] In this embodiment, the lower end of the first screening mesh 212 near the first slope 211 is hinged to the cabinet 1. The first screening mesh 212 is provided with a contact wheel 23, and the cabinet 1 is provided with a motor module 24. The output end of the motor module 24 is provided with a cam 241. The cam 241 contacts the contact wheel 23. The rotation of the cam 241 will push the contact wheel 23 to move up and down, thereby allowing the first screening mesh 212 to swing and vibrate, thus assisting in the screening of beads.

[0067] In this embodiment, the guide plate 213 is continuously bent to form multiple guide grooves 214.

[0068] In this embodiment, the recycling bin 22 is made of a movable basin that can be removed at any time, making it convenient to take away the items in the recycling bin 22.

[0069] Reference Figures 5 to 10 As shown, the first bead conveying device 5 includes a base 51, a groove 511 on the base 51, a turntable 52 in the groove 511, and a motor assembly on the base 51. The motor assembly can drive the turntable 52 to rotate. Multiple bead pushing grooves 521 are evenly distributed around the outer edge of the turntable 52 around its axis.

[0070] The base 51 is provided with a limiting part 53 and a bead guide part 54. The limiting part 53 and the bead guide part 54 form a bead outlet channel 55. The beads in the bead push groove 521 are blocked by the bead guide part 54 and enter the bead outlet channel 55.

[0071] The bead outlet channel 55 is arranged at an inclination, and the base 51 is provided with a bead outlet pipe 56. The upper end of the bead outlet pipe 56 is provided with a counting module 57, the lower end of the bead outlet pipe 56 is connected to the upper end of the bead outlet channel 55, and the lower end of the bead outlet pipe 56 is connected to the groove 511.

[0072] The base 51 is provided with a pusher 58 that can swing elastically. The pusher 58 can partially enter the ball outlet channel 55. The pusher 58 includes a first contact surface 581 and a second contact surface 582.

[0073] The beads sliding out of the guide plate 213 fall into the groove 511. When the turntable 52 rotates, the beads enter the pusher groove 521. As the turntable 52 rotates, the beads in the pusher groove 521 touch the guide part 54 and move along the guide part 54 into the outlet channel 55. When the beads do not touch the first contact surface 581, the pusher block 58 is partially located in the outlet channel 55. The outlet channel 55 is inclined. After the beads pass the pusher block 58, they will accumulate due to gravity, and the second contact surface 582 of the pusher block 58 will block the accumulated beads. The beads will not return to the groove 511, and new beads will enter the outlet channel. The beads in channel 55 will contact the first contact surface 581 and enter the pushing block 58 to swing. During this process, the second contact surface 582 will push the accumulated beads upward and quickly reset due to elasticity after the new beads pass, thus blocking the accumulated beads again and reducing the backflow of beads. At the same time, the counting module 57 is set at the upper end of the bead outlet channel 56. After the beads enter the bead outlet channel 55, they will gradually accumulate and enter the bead outlet channel 56 until they fall out from the upper end of the bead outlet channel 56. The counting module 57 only counts the number of beads that fall out, and the counting is accurate. Based on this, the beads will be transported one by one from the bead outlet channel 56 to the storage tank 41.

[0074] In this embodiment, the base 51 is provided with an inclined mounting surface 512, and the mounting surface 512 is provided with a combination block 513. The combination block 513 forms a groove 511 on the mounting surface 512. The limiting part 53 and the bead guide part 54 are both provided on the mounting surface 512. Moreover, the limiting part 53 and the bead guide part 54 are located at the upper end of the mounting surface 512. Therefore, when the turntable 52 rotates, it picks up the bead from below and then sends the bead to the bead outlet channel 55 from above.

[0075] It also includes a cover plate 514, which is placed on the bead outlet channel 55 and opposite to the mounting surface 512. The distance between the cover plate 514 and the mounting surface 512 is adapted to the outer diameter of the bead. Therefore, the cover plate 514 can prevent the bead from falling out of the bead outlet channel 55 and restrict the movement of the bead, so that the bead can only move along the bead outlet channel 55.

[0076] In this embodiment, the bead guide section 54 includes two bead guide plates 541 arranged at intervals along the axial direction of the turntable 52. The distance between the two bead guide plates 541 is adapted to the thickness of the turntable 52. The turntable 52 passes between the two bead guide sections 54, so the bead pushing groove 521 will pass through the gap between the two bead guide plates 541. The beads in the bead pushing groove 521 will touch the bead guide plates 541 and then move along the bead guide plates 541 and enter the bead outlet channel 55.

[0077] Similarly, the limiting part 53 includes two limiting plates 531 arranged at intervals along the axial direction of the turntable 52. The gap between the two limiting plates 531 allows the push block 58 to move so that the push block 58 can enter the ball outlet channel 55. The limiting plate 531 is opposite to the guide plate 541, and the ball outlet channel 55 is formed between the limiting plate 531 and the guide plate 541.

[0078] Furthermore, the width of the constructed bead delivery channel 55 is adapted to the outer diameter of the bead, ensuring that the beads are delivered one by one.

[0079] In this embodiment, a connecting block 584 is also included. The connecting block 584 can be fixed on the base 51 or the cover plate 514. The push block 58 is hinged on the base 51, so the push block 58 can rotate. A first spring 583 is connected between the push block 58 and the connecting block 584. When no new beads enter the bead outlet channel 55, the first spring 583 keeps the push block 58 partially in the bead outlet channel 55. At this time, the second contact surface 582 will press against the accumulated beads. When a new bead enters the bead outlet channel 55, it pushes the push block 58 to rotate, stretching the first spring 583. After the new bead passes the push block 58, the first spring 583 causes the push block 58 to reset, so that the push block 58 quickly presses against the newly stacked beads.

[0080] The cover plate 514 can be connected to the limiting plate 531 and the guide plate 541, thereby covering the ball outlet channel 55.

[0081] In this embodiment, a positioning block 59 is provided on the base 51. The positioning block 59 is located between two limiting plates 531. The first contact surface 581 can abut against the positioning block 59, thereby limiting the position of the push block 58 when no new ball is pushed, and controlling the rotation amplitude of the push block 58.

[0082] Meanwhile, the cover plate 514 is connected to the positioning block 59. When the turntable 52 pushes the bead into the bead outlet channel 55, the bead will squeeze the cover plate 514. After the cover plate 514 is connected to the positioning block 59, it can further prevent the cover plate 514 from being squeezed up, ensuring that the distance between the bead outlet channel 55 and the mounting surface 512 remains unchanged.

[0083] In this embodiment, the included angle between the first contact surface 581 and the second contact surface 582 is 75° to 95°. By controlling the included angle between the first contact surface 581 and the second contact surface 582, the shape of the part of the push block 58 that enters the bead outlet channel 55 can be controlled, so that when the push block 58 pushes the stacked beads, the movement distance of the beads will not exceed twice the outer diameter of the beads.

[0084] Preferably, the included angle between the first contact surface 581 and the second contact surface 582 is 80° to 86°.

[0085] In this embodiment, the bead-pushing groove 521 is a U-shaped groove. The two side walls of the bead-pushing groove 521 are divided into a first side wall 522 and a second side wall 523 in sequence along the rotation direction of the turntable 52. The length of the first side wall 522 is less than the length of the second side wall 523. Therefore, the bead-pushing groove 521 of this application is not a regular U-shaped groove, but a U-shaped groove with a gradually expanding opening. The opening direction is inclined outward along the rotation direction of the turntable 52. When the turntable 52 rotates, due to the large opening, a part of the bead can quickly fall into the opening. With the rotation of the turntable 52 and the inclination of the opening, the bead will quickly enter the bead-pushing groove 521. Under this structure, the speed of the turntable 52 can be relatively fast, which can improve the output speed of the bead. Moreover, one bead-pushing groove 521 can only carry one bead.

[0086] If the pusher groove 521 is a U-shaped groove, the ball will have difficulty entering the pusher groove 521 if the speed of the turntable 52 is high due to the size of the pusher groove 521. Therefore, the pusher groove 521 is designed as a U-shaped groove, so the speed of the turntable 52 will be relatively low and the ball output speed will be slow.

[0087] In this embodiment, the thickness of the turntable 52 and the distance between the turntable 52 and the mounting surface 512 need to be limited;

[0088] Along the axial direction of the turntable 52, the distance between the lower surface of the turntable 52 and the mounting surface 512 should be less than or equal to half the radius of the bead; otherwise, the bead may easily drill into the bottom of the turntable 52. The upper surface of the turntable 52 should be flush with or close to the apex of the bead, so that when pushing the bead, the beads in the bead pushing groove 521 will not easily pile up together and enter the bead exit channel 55.

[0089] In this embodiment, the base 51 is provided with a surrounding plate 515, which forms a receiving chamber on the mounting surface 512. The groove 511 is located in the receiving chamber. The beads that slide out from the guide plate 213 enter the receiving chamber and then reach the groove 511. Since the mounting surface 512 is inclined, the beads accumulate at the bottom under the action of gravity. The turntable 52 can scrape the beads from the bottom and transport them to the bead outlet channel 55.

[0090] In this embodiment, a baffle 516 is provided in the receiving chamber. The baffle 516 is arranged at an angle and can cover the upper part of the turntable 52. If the beads entering the receiving chamber fall onto the baffle 516, they will be guided by the baffle 516 to the lower part of the turntable 52. The lower end of the baffle 516 has a bead passage notch 517. The beads on the baffle 516 fall onto the upper part of the turntable 52 through the bead passage notch 517. In addition, the baffle 516 can prevent all the weight from pressing on the turntable 52, thus extending the service life of the motor.

[0091] Meanwhile, the baffle 516 is provided with two diverter plates 518 and two bead passage gaps 517. The diverter plates 518 are located between the two bead passage gaps 517. The two diverter plates 518 form a cone shape, which can guide the beads into the bead passage gaps 517.

[0092] In this embodiment, the bead outlet pipe 56 is provided with a bead outlet notch 561 and a detection notch 562, which are arranged opposite to each other, and the counting module 57 is disposed in the detection notch 562.

[0093] The counting module 57 includes a bracket 571 and a photoelectric sensor 572. The bracket 571 is equipped with a roller 573. One end of the bracket 571 is rotatably mounted on the bead outlet pipe 56, and the other end of the bracket 571 is connected to the bead outlet pipe 56 through a second spring 574 so that the roller 573 tends to enter the bead outlet pipe 56.

[0094] When no beads are output from the bead outlet 561, the roller 573 will block the bead outlet pipe 56, and the photoelectric sensor 572 will not detect the bracket 571. When a bead is about to be output from the bead outlet 561, the bead will push the roller 573 to move away from the bead outlet pipe 56, pushing the roller 573 away. The roller 573 can leave the bead outlet pipe 56 by relying on the detection outlet 562, so that it is not obstructed in the bead outlet pipe 56, and the bead can fall out of the bead outlet 561. When the roller 573 moves, it will drive the bracket 571 to move, and the photoelectric sensor 572 will detect the bracket 571, thus counting. When the bead has fallen out of the bead outlet 561, the roller 573 is no longer obstructed and will return to its original position under the action of the second spring 574, thus blocking the bead outlet pipe 56.

[0095] In some other embodiments, the bead outlet notch 561 and the detection notch 562 may not be arranged opposite each other. The bead outlet notch 561 may be located at the end of the bead outlet pipe 56, and the detection notch 562 may be located on the side wall adjacent to the bead outlet notch 561. When a bead enters the bead outlet notch 561, it will push the roller 573 to move.

[0096] Reference Figure 2 As shown, both the storage tank 41 and the return tank 42 are located inside the cabinet 1. The bottom of the storage tank 41 is provided with a first channel, and below the first channel is a first guide plate 43. The first guide plate 43 is arranged at an angle, and a second channel is left between the lower end of the first guide plate 43 and the side wall of the cabinet 1. Below the second channel is a second guide plate 44, which is arranged at an angle. The lower end of the second guide plate 44 is connected to the return tank 42.

[0097] The bead outlet 561 of the bead outlet pipe 56 of the first bead conveying device 5 is located above the storage tank 41. The beads will fall into the storage tank 41 and then flow from the first channel to the first guide plate 43. The beads on the first guide plate 43 will then slide down through the second channel to the second guide plate 44. The beads on the second guide plate 44 will slide down into the return tank 42.

[0098] The bottom of the storage tank 41 is recessed downwards, and the first channel is set at the lowest point to ensure that the beads can roll into the first channel; similarly, the return tank 42 is also recessed downwards, and the lowest point of the return tank 42 is provided with a connection port to ensure that the beads can reach the second bead conveying device 6.

[0099] In this embodiment, buffer pads are provided on the storage tank 41, the first guide plate 43, and the second guide plate 44 to reduce the noise generated when the beads collide.

[0100] The cabinet 1 has multiple doors that can be opened and closed. Different doors allow you to view the different locations inside the cabinet 1, which is convenient for maintaining the storage tank 41, the first guide plate 43, the second guide plate 44, and the return tank 42, etc.

[0101] Reference Figure 11 As shown, the second bead conveying device 6 has the same structure as the first bead conveying device 5, except that the shape of its bead outlet pipe 56 is slightly modified according to the arrangement position; the bead outlet notch 561 of the bead outlet pipe 56 of the second bead conveying device 6 is located above the bead retrieval groove 31. The beads in the return groove 42 enter the receiving chamber of the second bead conveying device 6, and then are output one by one from the bead outlet pipe 56 and fall into the bead retrieval groove 31; the bead retrieval groove 31 is composed of a movable basin, and consumers can take out the basin to pick up the beads and then put the basin back.

[0102] In this embodiment, the cabinet 1 is equipped with a receipt printer and a coin acceptor. After the consumer deposits the beads, a receipt with a QR code can be printed. When the consumer visits again, he / she can scan the QR code and the deposited beads will be transported to the bead retrieval slot 31.

[0103] Consumers can also use a coin acceptor to insert cash to directly purchase beads, which will then be transported to the bead retrieval slot 31.

[0104] In other embodiments, depending on the actual application scenario, other methods can be selected to obtain bead storage certificates or purchase beads, such as using a mobile APP.

[0105] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A bead storage cabinet, characterized in that, The cabinet includes a bead storage unit, a bead retrieval unit, and a circulation unit. The circulation unit includes a storage tank and a return tank. The storage tank is located above the return tank, and the beads in the storage tank will flow into the return tank. The bead storage unit includes a bead storage trough and a first bead conveying device, which receives the beads from the bead storage trough and conveys them one by one to the storage trough. The bead-retrieving unit includes a bead-retrieving groove and a second bead-conveying device. The second bead-conveying device receives the beads from the return groove and conveys them one by one to the bead-retrieving groove.

2. The bead storage cabinet according to claim 1, characterized in that, The bottom of the bead storage tank is provided with a first slope, and the lower end of the first slope is connected to a first screening screen. Beads smaller than or equal to a preset diameter can pass through the first screening screen. A guide plate is provided below the first screening screen. The guide plate is inclined in a first direction. After the beads pass through the first screening screen, they fall onto the guide plate. The guide plate guides the beads to the first bead conveying device.

3. The bead storage cabinet according to claim 2, characterized in that, The guide plate is provided with a plurality of guide grooves, which extend along the first direction. The bottom of the guide groove is provided with a screening slit, and a recycling trough is provided below the screening slit. Beads smaller than a preset diameter can pass through the screening slit and fall into the recycling trough.

4. The bead storage cabinet according to claim 1, characterized in that, The first bead conveying device includes a base, a groove on the base, a turntable in the groove, and a plurality of bead pushing grooves evenly distributed around the outer edge of the turntable along its axis. The base is provided with a limiting part and a bead guiding part, and the limiting part and the bead guiding part form a bead outlet channel. The bead in the bead pushing groove is blocked by the bead guiding part and enters the bead outlet channel. The bead outlet channel is arranged at an incline, the base is provided with a bead outlet pipe, the upper end of the bead outlet pipe is provided with a counting module, the lower end of the bead outlet pipe is connected to the upper end of the bead outlet channel, and the lower end of the bead outlet pipe is connected to the groove. The base is provided with a pusher block that can swing elastically. The pusher block can partially enter the bead outlet channel. The pusher block includes a first contact surface and a second contact surface. When the pusher block is partially located in the bead outlet channel, the first contact surface is used to contact the newly entered beads in the bead outlet channel, and the second contact surface is used to block the beads accumulated in the bead outlet channel.

5. The bead storage cabinet according to claim 4, characterized in that, The bead guide section includes two bead guide plates arranged at intervals along the axial direction of the turntable. The distance between the two bead guide plates is adapted to the thickness of the turntable. The turntable passes between the two bead guide sections to allow the beads in the bead pusher groove to enter the bead outlet channel. The limiting part includes two limiting plates arranged at intervals along the axial direction of the turntable. The gap between the two limiting plates allows the push block to move so that the push block enters the ball outlet channel.

6. The bead storage cabinet according to claim 4, characterized in that, The push block is hinged to the base, and a first spring connects the push block and the base.

7. The bead storage cabinet according to claim 5, characterized in that, The base is provided with a positioning block, which is located between the two limiting plates, and the first contact surface can abut against the positioning block.

8. The bead storage cabinet according to claim 4, characterized in that, The ball pusher groove is a U-shaped groove. The two side walls of the ball pusher groove are divided into a first side wall and a second side wall in sequence along the rotation direction of the turntable. The length of the first side wall is less than the length of the second side wall.

9. The bead storage cabinet according to claim 4, characterized in that, The base is provided with an inclined mounting surface, and a combination block is provided on the mounting surface. The combination block forms the groove on the mounting surface. The limiting part and the guide bead part are both provided on the mounting surface. It also includes a cover plate, which covers the bead outlet channel and is opposite to the mounting surface.

10. The bead storage cabinet according to claim 4, characterized in that, The bead outlet pipe is provided with a bead outlet notch and a detection notch, the bead outlet notch and the detection notch are arranged opposite to each other, and the counting module is set in the detection notch.

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