Multi-caliber cup cylinder switching structure and rapid cup replacing method thereof

Abstract

The invention discloses a multi-caliber cup cylinder switching structure and a rapid cup replacing method thereof.The structure comprises a limiting switching mechanism arranged at a cup cylinder opening, the limiting switching mechanism comprises a cup clamping sliding block, a spring and a variable-distance rotating disc, and the cup clamping sliding block and the spring are arranged in a matched mode; the cup clamping sliding block is provided with at least two limiting steps with different protruding heights, and the top faces of the limiting steps form a limiting face for supporting a cup opening. Limiting abutting positions matched with the limiting steps with the different protruding positions are arranged on the side wall of the distance-variable rotating disc, by rotating the distance-variable rotating disc, the limiting abutting positions with the different protruding positions can make corresponding contact with the limiting steps with the different protruding positions on the cup clamping sliding block and abut against the outer side of the ring, and then compression of the spring to different degrees is achieved. The multi-specification disposable cup supporting and clamping device can meet the supporting or clamping requirements of cups with different calibers, one-hand operation can be achieved, and rapid switching of multi-specification disposable cups can be completed without stopping equipment operation and emptying a cup bin.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of disposable cup placing and extracting equipment, in particular to a multi-caliber cup cylinder switching structure and a method for quickly replacing different sizes of cups. BACKGROUND

[0002] In many scenarios such as catering, retail, office, etc., terminal equipment such as automatic beverage vending machines and self-service cup dispensing machines using disposable cups has been widely used. One of the core accessories of such equipment is the cup cylinder used to store and output disposable cups, and the caliber adaptability directly affects the use range and convenience of the equipment.

[0003] In the prior art, the cup cylinder equipped in such terminal equipment is mostly designed with a fixed caliber, which can only adapt to a single size of disposable cups. In actual use, due to the difference in user demand for cup size in different scenarios (such as small cups for coffee and large cups for milk tea, etc.), it is often necessary to replace cups of different calibers. However, the replacement and adaptation operation of the existing cup cylinder is extremely cumbersome: first, the normal operation of the equipment must be stopped to avoid equipment malfunctions or cup jamming during the operation; then all the remaining cups in the cup compartment must be emptied to prevent different sizes of cups from mixing and causing subsequent cup taking failures; then the cup cylinder main body needs to be disassembled, the size of the rubber ring needs to be replaced, the diameter of the inner ring of the cup cylinder needs to be adjusted, or special tools need to be used to adjust the limiting buckle, etc. to realize the adaptation and adjustment of the caliber of the cup cylinder; after the adjustment is completed, the corresponding size of the cup needs to be reloaded into the cup compartment, and the equipment needs to be restarted for debugging. The whole operation process is cumbersome and time-consuming, which seriously affects the use efficiency of the equipment.

[0004] Therefore, it is urgent to develop a cup cylinder structure with simple structure, convenient operation, and multi-caliber quick switching without emptying the cup compartment to solve the above technical defects in the prior art. SUMMARY

[0005] The multi-caliber cup cylinder switching structure and the method for quickly replacing different sizes of cups based on the structure are proposed, which realizes single-handed operation, does not need to stop the operation of the equipment, and does not need to empty the cup compartment to complete the quick and seamless switching of multi-size disposable cups, thereby solving the problems proposed in the background.

[0006] In order to achieve the above purpose, the present application adopts the following technical solutions:

[0007] A multi-diameter cup switching structure includes a limiting switching mechanism located at the cup opening. This limiting switching mechanism forms a limiting surface supporting the cup opening. Its core features are: the limiting switching mechanism includes a cup-locking slider, a spring, and a variable-distance turntable; the cup-locking slider and the spring are paired and evenly distributed in a ring shape; the cup-locking slider has at least two limiting steps with different protrusion heights, and the top surface of each limiting step forms the limiting surface supporting the cup opening; the variable-distance turntable is located between the cup-locking slider and the spring... Inside the annular area formed by the two parts, there are limiting abutments on the side walls that are adapted to the limiting steps of different protrusion heights. The limiting abutments are integrally formed by toothed walls of different heights. By rotating the variable distance turntable, the limiting abutments of different heights can make corresponding contact with the limiting steps of different protrusions on the cup slider and press against the outside of the ring, thereby achieving different degrees of compression of the spring. Finally, the limiting steps of different protrusions on the cup slider will protrude into the ring synchronously to adapt to the support or clamping requirements of cups of different diameters.

[0008] The structure also includes an annular turntable base and a cover. The cover is fixedly connected to one end of the turntable base by a snap-fit ​​connection. The turntable base is used to position and install the cup slider and the spring. The variable-distance turntable is rotatably mounted between the turntable base and the cover. Specifically, the turntable base has a pivot locking position and a fixing groove that opens into the ring. The upper part of the cup slider has an integrally formed pivot. The cup slider is rotatably locked to the pivot locking position on the turntable base via the pivot. The spring is mounted in the fixing groove of the turntable base, with one end of the spring abutting against the side wall of the cup slider and the other end abutting against the groove wall of the fixing groove. The inner side of the cover has an annular rotating groove. One annular end face of the variable-distance turntable is embedded in the rotating groove and can rotate circumferentially along the rotating groove.

[0009] To enable convenient rotation adjustment of the variable distance turntable, a groove is provided on the cover, and a lever is provided around the outside of the variable distance turntable. The lever extends outside the cover through the groove and can move within the groove. Moving the lever enables the rotation of the variable distance turntable.

[0010] The structure also includes a cup compartment connector, a push ring slider, a push cup spring, and a cup body. The upper end of the cup compartment connector is fixedly connected to the lower end of the turntable base by a snap-fit, and its lower end is detachably connected to the upper end of the cup body. The push ring slider and the push cup spring are both assembled inside the cup body. The lower end of the push cup spring abuts against the bottom of the cup body, and the upper end abuts against the lower end face of the push ring slider. The elastic force of the push cup spring pushes the push ring slider to move upward along the axial direction of the cup body, thereby popping the cup out of the cup compartment.

[0011] To improve the intuitiveness and accuracy of operation, the groove is marked with labels corresponding to different cup diameters (such as "small cup", "medium cup" and "large cup"). The movement position of the lever in the groove corresponds one-to-one with the limit stops at different heights on the side wall of the variable distance turntable and the limit steps at different protrusions on the cup-holding slider. This ensures that when the user pushes the lever to the corresponding marked position, the limit switching mechanism switches to the appropriate support or clamping state for the corresponding cup diameter, thus achieving the corresponding switch.

[0012] Preferably, the inner edge of the cover is integrally formed with several locking blocks, and the corresponding position of the turntable base is provided with locking holes adapted to the locking blocks. The cover and the turntable base are fixed by interference fit between the locking blocks and the locking holes, which makes assembly convenient and connection stable.

[0013] Preferably, the upper outer side of the cup compartment connector is integrally formed with a spring-loaded locking block, and the lower inner side of the turntable base is provided with a slot adapted to the spring-loaded locking block. The cup compartment connector and the turntable base are fixedly connected by the elastic engagement of the spring-loaded locking block and the slot, which facilitates disassembly and maintenance.

[0014] Preferably, the spring adopts a V-shaped spring-loaded component. Compared with traditional linear springs, the V-shaped spring-loaded component has the advantages of stable elastic restoring force and small space occupation, which can better adapt to the rotation and pressing requirements of the cup slider and ensure the stability and reliability of limit switching.

[0015] A method for quickly exchanging cups of different sizes based on the above-mentioned multi-diameter cup-and-cup switching structure includes the following:

[0016] S1: Confirm the cup diameter specification currently used by the device, and the target diameter specification to be switched to;

[0017] S2: The operator holds the cup body or the corresponding part of the equipment with one hand, and moves the lever on the cover with the other hand, so that the lever moves along the groove towards the mark corresponding to the target diameter specification;

[0018] S3: During the movement of the push block, its lower end contacts the second push block on the outer peripheral wall of the variable distance turntable and pushes the second push block to move, thereby driving the variable distance turntable to rotate circumferentially along the rotating groove of the cover.

[0019] During the rotation of the variable distance turntable, the limiting stop (tooth wall of a specific height) on its side wall corresponding to the target diameter specification gradually contacts the corresponding limiting step on the caliper slider and presses against the caliper slider in the outward direction.

[0020] The cup slider rotates around the pivot under the pressure of the limiting stop, while compressing the spring until the spring is compressed to the preset state. At this time, the limiting step on the cup slider corresponding to the target diameter protrudes into the ring to the preset position, forming a limiting surface that fits the target diameter cup.

[0021] S4: When the dial block moves to the marked position of the target diameter specification on the dial slot, stop dialing to complete the switching of the cup diameter; at this time, the remaining cups in the cup compartment can continue to be stored normally, and the equipment can directly take the cups of the switched diameter to achieve fast and seamless switching of multiple diameters.

[0022] The beneficial effects of this invention are as follows:

[0023] Using the structure of this invention, the variable distance turntable can be rotated by a lever, which in turn moves the limiting steps of different protrusions on the cup slider to achieve the switching of the cup diameter. The whole process does not require stopping the equipment or emptying the cup in the cup compartment. It can be completed by simply moving the lever with one hand. The operation steps are simple, the switching time is short, and the efficiency of the equipment is effectively improved.

[0024] Meanwhile, the invention has a simple and stable structure and low manufacturing cost: the invention adopts a pure mechanical structure, and the components only include basic mechanical parts such as the cup slider, spring, and variable distance turntable. It does not require complex electronic components and precision mechanical transmission mechanisms. The structure is simple, easy to process and assemble, and the manufacturing cost is significantly reduced. Moreover, the mechanical structure has higher stability and is less prone to failure in high-frequency use scenarios, thus extending the service life of the equipment.

[0025] In addition, the present invention can adapt to at least two or more sizes of disposable cups by using multiple limiting steps with different protrusions on the cup slider and limiting stops with different heights on the variable distance turntable. Moreover, the cups do not need to be removed during the switching process, and the cup compartment can simultaneously store cups of the corresponding sizes, which greatly improves the flexibility and applicability of the equipment.

[0026] The structure of this invention eliminates the need to disassemble the cup container and empty the cup compartment, reducing the cup's contact with the external environment and lowering the risk of contamination. Simultaneously, the simplified operation reduces the probability of device malfunction due to improper user operation, thus improving the safety and reliability of the device.

[0027] Its structure-based method of exchanging cups of different sizes is simple, convenient, and practical. Attached Figure Description

[0028] Figure 1 This is an exploded view of the structure of the present invention.

[0029] Figure 2 This is a schematic diagram of the structure of the present invention.

[0030] Figure 3 This is a schematic diagram of the present invention and its assembly with the sleeve.

[0031] Figure 4 This is a schematic diagram illustrating the application of the present invention.

[0032] Numbering in the diagram: 1-Cover, 11-Pulling block, 12-Pulling groove, 13-Clamping block, 2-Cup-clamping slider, 21-Limiting step, 22-Rotating shaft, 3-Variable distance turntable, 31-Limiting stop, 4-Turntable base, 41-Rotating shaft clamping position, 42-Fixed groove, 43-Rotating groove, 44-Clamping hole, 45-Clamping groove, 5-Cup compartment connector, 51-Spring-type clamping block, 6-Push ring slider, 7-Spring (V-shaped spring-loaded component), 8-Push cup spring, 9-Cup body, 10-Cup. Detailed Implementation

[0033] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0034] Example 1

[0035] Reference Figures 1-4 As shown, a multi-diameter cup switching structure includes a limiting switching mechanism comprising four sets of cup-locking sliders 2, four V-shaped springs 7, and a variable-distance turntable 3. The four sets of cup-locking sliders 2 correspond one-to-one with the four V-shaped springs 7 and are evenly distributed along a ring. For reference, the included angle between adjacent cup-locking sliders 2 is 90°. Each cup-locking slider 2 is provided with three limiting steps 21 with different protrusion heights, such as a small-diameter limiting step with a protrusion height of 2mm, a medium-diameter limiting step with a protrusion height of 4mm, and a large-diameter limiting step with a protrusion height of 5mm. The variable-distance turntable 3 is located inside the annular area formed by the four sets of cup-locking sliders 2, and its sidewall is provided with three sets of limiting stops 31 corresponding to different heights, such as a small-diameter tooth wall with a height of 2mm, a medium-diameter tooth wall with a height of 4mm, and a large-diameter tooth wall with a height of 5mm. The two sets of limiting stops 31 are distributed along the circumference of the variable-distance turntable 3.

[0036] It also includes a turntable base 4, which is a ring structure. The upper end face of the turntable base 4 has four rotating shaft slots 41 evenly distributed around the circumference, and the lower end face has four fixing slots 42 evenly distributed around the circumference. Each cup slider 2 has a cylindrical rotating shaft 22 integrally formed on its upper part. The cup slider 2 can be rotatably engaged with the rotating shaft slots 41 of the turntable base 4 through the rotating shaft 22 and can rotate around the rotating shaft 22. A V-shaped spring 7 is assembled in the fixing slot 42. One end of the spring 7 abuts against the side wall of the cup slider 2, and the other end abuts against the groove wall of the fixing slot 42. In the initial state, the spring is in a slightly compressed state, pushing the cup slider 2 to reset in the direction of the ring.

[0037] It also includes a face cover 1, which is an annular structure. Four locking blocks 13 are integrally formed on its inner edge. Four locking holes 44 are provided at the corresponding positions of the turntable base 4. The face cover 1 is fixedly connected to the upper end face of the turntable base 4 through the interference fit between the locking blocks 13 and the locking holes 44. An annular rotating groove 43 is provided in the middle of the inner side of the face cover 1. The upper annular end face of the variable distance turntable 3 is embedded in the rotating groove 43 and can rotate circumferentially along the rotating groove 43. A circumferential groove 12 is provided on the outer side of the face cover 1. The groove 12 is marked with a mark, such as "small cup", "medium cup" and "large cup" (not shown in the figure). A lever 11 is provided on the outer peripheral wall of the variable distance turntable 3. The lever 11 extends to the outside of the face cover 1 through the lever 12 and can move along the lever 12. Moving the lever 11 can drive the variable distance turntable 3 to rotate. The groove 12 is clearly marked with its diameter specification. The moving position of the toggle block 11 corresponds one-to-one with the action state of the limit switching mechanism. Users can intuitively judge whether the switching is in place, ensuring the accuracy of the switching and reducing the error rate of operation.

[0038] It also includes a cup compartment connector 5, which has four spring-loaded locking blocks 51 integrally formed on the upper outer side and four locking slots 45 opened on the lower inner side of the turntable base 4. The cup compartment connector 5 is fixedly connected to the lower end of the turntable base 4 through the elastic engagement of the spring-loaded locking blocks 51 and the locking slots 45. The lower end of the cup compartment connector 5 is detachably connected to the upper end of the cup body 8 through a threaded connection. The push ring slider 6 and the push cup spring 8 are assembled inside the cup body 9. The lower end of the push cup spring 8 abuts against the bottom of the cup body 9 and the upper end abuts against the lower end face of the push ring slider 6. In the initial state, the push cup spring 8 is in a compressed state, applying an upward elastic thrust to the push ring slider 6.

[0039] For example, the diameter of a small-diameter cup is 70mm, the diameter of a medium-diameter cup is 80mm, and the diameter of a large-diameter cup is 90mm. When the lever 11 is in the "small cup" position, the small-diameter toothed wall (2mm high) of the variable-distance turntable 3 contacts the small-diameter limiting step 21 of the cup-holding slider 2, pressing the cup-holding slider 2 to rotate outward from the ring. The spring is further compressed, and at this time, the small-diameter limiting steps 21 of the four cup-holding sliders 2 simultaneously protrude inward from the ring, forming a limiting surface with a diameter of 70mm, which is suitable for supporting the small-diameter cup. When the lever 11 is moved to the "medium cup" position, the lever 11 pushes and drives the variable-distance turntable 3 to rotate. At this time, the medium-diameter toothed wall (4mm high) of the variable-distance turntable 3 contacts the medium-diameter limiting step 21 of the cup-holding slider 2. When the limiting step 21 of the cup cup contacts, the cup cup slider 2 is further rotated outward, the spring compression increases, and the middle diameter limiting steps 21 of the four cup cup sliders 2 simultaneously protrude inward, forming a limiting surface with a diameter of 80mm, which is suitable for supporting the middle diameter cup. When the dial 11 is moved to the "large cup" mark position, the dial 11 pushes and drives the variable distance turntable 3 to rotate to 90°. At this time, the large diameter tooth wall (5mm high) of the variable distance turntable 3 contacts the large diameter limiting step 21 of the cup cup slider 2, and the cup cup slider 2 is further rotated outward, the spring compression increases, and the large diameter limiting steps 21 of the four cup cup sliders 2 simultaneously protrude inward, forming a limiting surface with a diameter of 90mm, which is suitable for supporting the large diameter cup.

[0040] The reverse operation involves moving the dial 11 in the opposite direction to switch to use a small-diameter cup.

[0041] The above structure is also a cup limiting structure, and a cup container device or cup container storage device with a multi-diameter cup container switching structure.

[0042] Example 2

[0043] This embodiment provides a method for quickly exchanging a small cup for a large cup based on the structure of Embodiment 1. The specific steps are as follows:

[0044] S1. The device is currently compatible with 70mm cups with a small opening diameter. There are still small cups in the cup compartment. It needs to be switched to be compatible with 90mm cups with a large opening diameter.

[0045] S2. The operator holds the cup body 8 with one hand and the lever 11 on the lid 1 with the other hand;

[0046] S3. Move the lever 11 extending to the outside of the cover 1 along the lever 12 towards the "large cup" mark, causing the variable distance turntable 3 to rotate clockwise along the rotating groove 43 of the cover 1.

[0047] During the rotation of the variable distance turntable 3, the large-diameter toothed wall on its side wall gradually contacts the large-diameter limiting step 21 of the cup slider 2 and presses against the cup slider 2 in the direction of the ring outside. The cup slider 2 rotates around the rotating shaft 22 in the direction of the ring outside, while compressing the V-shaped spring 7.

[0048] When the dial 11 moves to the "large cup" mark position, stop dialing the dial 11. At this time, the large-diameter limiting step 21 of the cup slider 2 will simultaneously protrude into the ring to form a limiting surface with a diameter of 90mm.

[0049] S4. Simply add a large-diameter 90mm cup to the cup compartment, and the device can then normally pick up large-diameter cups. The remaining small-diameter cups in the cup compartment can be added after use without needing to be removed in advance, thus completing a quick and seamless switch.

[0050] When you need to remove the cup, simply pull the end of the cup 10 with your hand. The cup 10 will deform slightly, allowing it to slide out from the limit switching mechanism.

[0051] The above method can be reversed by moving the dial 11 in the opposite direction, which is the method for switching from a large-diameter cup to a small-diameter cup.

[0052] The above embodiments are fully implemented as follows:

[0053] Using the structure of this invention, the variable distance turntable can be rotated by a lever, which in turn moves the limiting steps of different protrusions on the cup slider to achieve the switching of the cup diameter. The whole process does not require stopping the equipment or emptying the cup in the cup compartment. It can be completed by simply moving the lever with one hand. The operation steps are simple, the switching time is short, and the efficiency of the equipment is effectively improved.

[0054] Meanwhile, the invention has a simple and stable structure and low manufacturing cost: the invention adopts a pure mechanical structure, and the components only include basic mechanical parts such as the cup slider, spring, and variable distance turntable. It does not require complex electronic components and precision mechanical transmission mechanisms. The structure is simple, easy to process and assemble, and the manufacturing cost is significantly reduced. Moreover, the mechanical structure has higher stability and is less prone to failure in high-frequency use scenarios, thus extending the service life of the equipment.

[0055] In addition, the present invention can adapt to at least two or more sizes of disposable cups by using multiple limiting steps with different protrusions on the cup slider and limiting stops with different heights on the variable distance turntable. Moreover, the cups do not need to be removed during the switching process, and the cup compartment can simultaneously store cups of the corresponding sizes, which greatly improves the flexibility and applicability of the equipment.

[0056] The structure of this invention eliminates the need to disassemble the cup container and empty the cup compartment, reducing the cup's contact with the external environment and lowering the risk of contamination. Simultaneously, the simplified operation reduces the probability of device malfunction due to improper user operation, thus improving the safety and reliability of the device.

[0057] Its structure-based method of exchanging cups of different sizes is simple, convenient, and practical.

[0058] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A multi-diameter cup-and-cylinder switching structure, comprising a limiting switching mechanism disposed at the mouth of the cup-and-cylinder, the limiting switching mechanism being used to form a limiting surface supporting the mouth of the cup, characterized in that: The limiting switching mechanism includes a cup slider (2), a spring (7), and a variable distance turntable (3). The cup slider (2) and the spring (7) are matched and evenly distributed along the ring. The cup slider (2) is provided with at least two limiting steps (21) with different protrusion heights. The variable distance turntable (3) is located inside the ring-shaped area formed by the cup slider (2) and the spring (7). Its side wall is provided with a limiting stop (31) composed of toothed walls of different heights. The limiting stop (31) is adapted to the limiting step (21). By rotating the variable distance turntable (3), the limiting stops (31) of different heights come into contact with the limiting steps (21) of different protrusions and press against the outside of the ring, driving the spring (7) to compress to different degrees, so that the limiting steps (21) of different protrusions protrude into the ring synchronously, and the support or clamping position (31) of the cup with different diameters presses against the outside of the ring with the limiting steps (21) of different diameters, so as to achieve different contact compression of the spring (7) and realize that the limiting steps (21) of different protrusions protrude into the ring at the same time, so as to realize the support or clamping of cups with different diameters.

2. The multi-diameter cup-and-cylinder switching structure according to claim 1, characterized in that, It also includes an annular turntable base (4) and a face cover (1). The face cover (1) is snapped and fixed to the turntable base (4). The turntable base (4) is provided with a rotating shaft slot (41) and a fixed slot (42). The upper part of the cup slider (2) is provided with a rotating shaft (22) and is rotatably snapped to the rotating shaft slot (41) through the rotating shaft (22). The spring (7) is assembled in the fixed slot (42). The face cover (1) is provided with a rotating groove (43). One end of the variable distance turntable (3) is embedded in the rotating groove (43) and can rotate circumferentially.

3. The multi-diameter cup-and-cylinder switching structure according to claim 2, characterized in that, The face cover (1) is also provided with a groove (12), and a lever (11) is provided around the outside of the variable distance turntable (3). The lever (11) extends outside the face cover (1) through the groove (12) and can move within the groove (12). Moving the lever (11) realizes the rotation of the variable distance turntable (3).

4. The multi-diameter cup-and-cylinder switching structure according to claim 2, characterized in that, It also includes a cup compartment connector (5), a cup pusher slider (6), a cup pusher spring (8), and a cup cylinder body (9). The cup compartment connector (5) is connected to the turntable base (4), and the pusher slider (6) and the cup pusher spring (8) are located in the cup cylinder (9).

5. The multi-diameter cup-and-cylinder switching structure according to claim 3, characterized in that, The groove (12) is marked with the cup diameter specification mark, and the moving position of the push block (11) corresponds one-to-one with the limit stop (31) and the limit step (21).

6. The multi-diameter cup-and-cylinder switching structure according to claim 3, characterized in that, The cover (1) is provided with a locking block (13), and the turntable base (4) is provided with a corresponding locking hole (44), which is engaged by the locking block (13) and the locking hole (44).

7. The multi-diameter cup-and-cylinder switching structure according to claim 4, characterized in that, The cup compartment connector (5) is provided with a spring-loaded locking block (51), and the turntable base (4) is provided with a corresponding locking slot (45), which is engaged by the locking block (51) and the locking slot (45).

8. The multi-diameter cup-and-cylinder switching structure according to claim 1, characterized in that, The spring (7) is a V-shaped spring compression member.

9. A method for quickly changing cups of different sizes based on a multi-diameter cup-and-cup switching structure as described in any one of claims 1 to 8, characterized in that, Including the following: S1: Confirm the cup diameter specification currently used by the device, and the target diameter specification to be switched to; S2: The operator holds the cup body or the corresponding part of the equipment with one hand, and moves the lever on the cover with the other hand, so that the lever moves along the groove towards the mark corresponding to the target diameter specification; S3: During the movement of the push block, its lower end contacts the second push block on the outer peripheral wall of the variable distance turntable and pushes the second push block to move, thereby driving the variable distance turntable to rotate circumferentially along the rotating groove of the cover. During the rotation of the variable distance turntable, the limiting stop (tooth wall of a specific height) on its side wall corresponding to the target diameter specification gradually contacts the corresponding limiting step on the caliper slider and presses against the caliper slider in the outward direction. The cup slider rotates around the pivot under the pressure of the limiting stop, while compressing the spring until the spring is compressed to the preset state. At this time, the limiting step on the cup slider corresponding to the target diameter protrudes into the ring to the preset position, forming a limiting surface that fits the target diameter cup. S4: When the dial block moves to the marked position of the target diameter specification on the dial slot, stop moving the dial block and complete the switching of the cup diameter; at this time, the remaining cups in the cup compartment can continue to be stored normally, and the equipment can directly take the cups of the switched diameter to realize the rapid switching of multiple diameters.

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