A beverage machine with an improved cylinder locking structure

Abstract

This utility model discloses an improved beverage machine with a locking structure for the dispensing cylinder. The locking device includes two locking covers, which are rotatably mounted on the left and right sides of the upper housing. Each of the two locking covers has a locking groove on its opposite surface, and an outwardly protruding unlocking protrusion on its circumferential surface. A locking protrusion and an unlocking protrusion are respectively located on the left and right sides of the dispensing cylinder. One end of the locking groove is open, and the other end is locking, with the open end facing the locking protrusion. When locked, the locking protrusion engages with the locking groove; when unlocked, the unlocking protrusion abuts against the unlocking protrusion. During unlocking, rotating the locking covers causes the unlocking protrusion to push the unlocking protrusion, driving the dispensing cylinder forward and separating it from the upper housing. This eliminates the need to pull the dispensing cylinder, making disassembly more time-saving and labor-saving, and easier to operate. The locking protrusion moves out of the locking groove from its open end, preventing it from getting stuck and improving the unlocking success rate.

Description

Technical Field

[0001] This utility model relates to the field of cold drink processing equipment technology, and in particular to a beverage machine with an improved cylinder locking structure. Background Technology

[0002] A beverage machine is a type of cold drink processing equipment, also known as a cold drink machine, smoothie machine, or slush machine. With the continuous improvement of people's living standards, beverage machines are gradually becoming smaller and more suitable for home use. A beverage machine uses a rotating spiral scraper mounted on an evaporator. The evaporator cools and crystallizes the liquid beverage, and the spiral scraper then removes the crystals from the evaporator, creating a cycle until the smoothie is made. For easy cleaning of the evaporator and spiral scraper, the dispensing cylinder has a detachable structure. Existing beverage machines have a mounting groove at the top of the machine body, with the evaporator and spiral scraper located above it. The dispensing cylinder is slidably mounted on the mounting groove and then locked in place by a locking mechanism. However, the existing locking structure can only release when unlocking. When disassembling the material cylinder, it is necessary to pull the material cylinder forward. Due to the adsorption between the sealing ring and the sealing surface of the machine body, the material cylinder is easy to stick to the machine body, requiring a lot of force to pull the material cylinder, which is time-consuming and laborious. In addition, the material cylinder is mostly cylindrical in shape, and in order to save space and materials, it is not equipped with a handle. It is difficult to grip and exert force on the material cylinder when disassembling it, making the operation inconvenient. Therefore, it is necessary to improve it. Utility Model Content

[0003] To address the shortcomings of existing technologies, the purpose of this utility model is to provide a beverage machine with an improved cylinder locking structure. This structure pushes the cylinder forward while unlocking, eliminating the need to pull the cylinder during disassembly, thus saving time and effort and facilitating operation.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a beverage machine with an improved cylinder locking structure, comprising a machine body and a cylinder, a refrigeration device, a stirring device, and a locking device disposed on the machine body. The machine body includes an upper box and a lower box. The upper box is disposed at the rear of the upper end face of the lower box. A mounting groove is provided at the front of the upper end face of the upper box. The cylinder is slidably mounted in the mounting groove. The locking device is disposed on the upper box and locks into the cylinder. The locking device includes two locking covers. Two locking covers are rotatably installed on the left and right sides of the upper housing. Each locking cover has a locking groove on its opposite side. The circumferential surface of each locking cover has an outwardly protruding unlocking protrusion. A locking protrusion and an unlocking protrusion are respectively provided on the left and right sides of the material cylinder. One end of the locking groove is an open end and the other end is a locking end. The open end is directly opposite the locking protrusion. When locked, the locking protrusion locks with the locking groove. When unlocked, the unlocking protrusion abuts against the unlocking protrusion to push the material cylinder forward.

[0005] In a further technical solution, the two locking covers are provided with arc-shaped locking grooves on their opposite sides. Arc-shaped locking springs are provided in the locking grooves. One end of the locking spring is a free end and the other end is a connecting end. The connecting end is formed at one end of the locking groove and extends to the other end of the locking groove. A locking buckle is provided on one side of the connecting end. Locking protrusions are provided on the left and right sides of the upper box. The locking protrusions are inserted into the locking grooves and are limited to the locking grooves. When locked, the locking protrusions and the locking buckles abut against each other.

[0006] In a further technical solution, the locking end of the locking slide extends toward the axis of the locking cover to form a cam groove, and the distance between the opening end of the locking slide and the axis of the locking cover is greater than the distance between the locking end of the locking slide and the axis of the locking cover.

[0007] In a further technical solution, a first limiting slider is provided at the front of the left and right sides of the material cylinder, and a second limiting slider is provided at the rear of the left and right sides of the material cylinder. The front ends of the left and right sides of the mounting groove are provided with a first limiting groove with an opening facing forward. The two first limiting sliders are respectively limited and cooperate with the two first limiting grooves. The upper edge of the rear of the left and right sides of the mounting groove is provided with a second limiting slide block. The second limiting slide block is provided with a second limiting groove with an opening facing forward. The two second limiting sliders are respectively limited and cooperate with the two second limiting grooves.

[0008] In a further technical solution, a water receiving box is snapped into the front end of the mounting chute, and a third limiting strip that protrudes downwards is provided at the lower part of the material cylinder. The third limiting strip is matched with the front side of the water receiving box for limiting.

[0009] In a further technical solution, the unlocking protrusion is provided with a first unlocking straight edge, a second unlocking straight edge, and an unlocking arc edge. The unlocking arc edge is connected between the first unlocking straight edge and the second unlocking straight edge. The first unlocking straight edge faces the unlocking protrusion. The first unlocking straight edge and the unlocking arc edge respectively abut against the unlocking protrusion. The length of the first unlocking straight edge is greater than the length of the second unlocking straight edge.

[0010] In a further technical solution, the locking device is also equipped with a synchronous connecting rod, the two ends of which are fixedly connected to two locking rotating covers respectively.

[0011] In a further technical solution, the locking cover includes a cover body and a cover surface. The cover body is hollow inside, and an opening is provided on the side of the cover body away from the upper housing. The cover surface closes onto the opening of the cover body. A connecting post is provided in the center of the cover body. A connecting shaft hole is provided on the side of the connecting post facing the synchronous connecting rod, and a fixing hole is provided on the side of the connecting post facing the cover surface. The connecting shaft hole and the fixing hole are connected. The synchronous connecting rod is inserted into the connecting shaft hole, and a fastening screw passes through the fixing hole. The fastening screw is threadedly connected to the synchronous connecting rod. A bushing is provided between the synchronous connecting rod and the upper housing.

[0012] In a further technical solution, unlocking and locking marks are respectively provided on the left and right sides of the upper housing. The unlocking and locking marks are spaced apart along the axial direction of the locking cover. The unlocking mark is located in front of the locking mark. An indicator mark is provided on the circumferential surface of the locking cover. When unlocking, the indicator mark points to the unlocking mark, and when locking, the indicator mark points to the locking mark.

[0013] The circumferential surface of the locking cover is provided with multiple anti-slip grooves at intervals along the circumferential direction.

[0014] In a further technical solution, the refrigeration device includes an evaporator, a condenser, and a compressor. The evaporator is fixedly installed on the front side of the upper casing, and the condenser and compressor are fixedly installed in the lower casing respectively. The evaporator and condenser are respectively connected to the compressor, and an installation port is provided on the rear side of the barrel corresponding to the position of the evaporator.

[0015] The stirring device includes a spiral scraper, a stirring motor, a reduction gear, and a stirring drive rod. The stirring motor and the reduction gear are both located inside the upper housing. The stirring motor is connected to the reduction gear for transmission. The spiral scraper is rotatably mounted on the periphery of the evaporator. The stirring drive rod is rotatably mounted inside the evaporator. The front end of the stirring drive rod extends out of the front side of the evaporator and is fixedly connected to the spiral scraper. The rear end of the stirring drive rod is fixedly connected to the output end of the reduction gear.

[0016] A safety switch is installed on the front side of the upper housing, and a trigger protrusion is installed on the rear side of the material cylinder corresponding to the position of the safety switch. When locked, the trigger protrusion cooperates with the safety switch to trigger.

[0017] The advantages of this invention compared to existing technologies are as follows: Rotating the locking cover backward causes the locking slide groove to rotate, thus fixing the locking protrusion within the groove. As the locking cover continues to rotate, it moves the locking protrusion to the locking end, pulling the material cylinder backward and tightly connecting it to the upper housing. The cam groove method for fixing results in a simple structure, low cost, and easy disassembly of the material cylinder for cleaning. During unlocking, rotating the locking cover forward causes the unlocking protrusion to abut against the unlocking protrusion, continuously moving forward... Rotating the locking cover unlocks the cylinder by pushing the unlocking protrusion forward, thus separating the cylinder from the upper housing. This eliminates the need to pull the cylinder forward, making cylinder disassembly more time-saving, labor-saving, and easier to operate. Simultaneously, the locking protrusion moves out of the locking groove from the opening end, preventing it from getting stuck and improving the unlocking success rate. The locking spring limits the locking protrusion during locking, further increasing the locking force and preventing accidental locking caused by vibration or other external factors, thus improving reliability and stability. Attached Figure Description

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

[0020] Figure 2 This is an exploded view of the present invention;

[0021] Figure 3 This is the utility model Figure 2 Enlarged view of part A;

[0022] Figure 4 This is the utility model Figure 2 Enlarged view of part B;

[0023] Figure 5 This is a reference diagram showing the state of this utility model when locked;

[0024] Figure 6 This is a reference diagram showing the state of this utility model when it is unlocked.

[0025] In the picture:

[0026] 1. Main body, 11. Lower casing, 12. Upper casing, 13. Mounting slide, 14. Water receiving box, 15. Safety switch;

[0027] 21. Evaporator;

[0028] 31 spiral scraper;

[0029] 4. Material cylinder;

[0030] 6 Locking cover, 61 Cover body, 62 Cover surface, 63 Connecting post, 631 Coupling hole, 632 Fixing hole, 64 Fastening screw, 65 Anti-slip groove, 66 Bushing;

[0031] 71 Locking groove, 711 Open end, 712 Locking end, 72 Locking protrusion, 73 Unlocking protrusion, 731 First unlocking straight edge, 732 Second unlocking straight edge, 733 Unlocking curved edge, 74 Unlocking protrusion, 75 Locking fixing groove, 76 Locking spring, 761 Free end, 762 Connecting end, 763 Locking buckle, 77 Locking protrusion, 781 Unlocking mark, 782 Locking mark, 783 Indicator mark

[0032] 811 First limiting slider, 812 First limiting groove, 821 Second limiting slider, 822 Second limiting slide block, 823 Second limiting groove, 83 Third limiting stop bar;

[0033] 9. Synchronous linkage. Detailed Implementation

[0034] The following are merely preferred embodiments of the present invention and do not limit the scope of protection of the present invention.

[0035] A beverage machine with an improved cylinder locking structure, such as Figures 1 to 6 As shown, the device includes a machine body 1 and a material cylinder 4, a refrigeration device, a stirring device, and a locking device mounted on the machine body 1. The machine body 1 includes an upper housing 12 and a lower housing 11. The upper housing 12 is located at the rear of the upper end face of the lower housing 11. The front of the upper end face of the upper housing 12 is provided with a mounting groove 13. The material cylinder 4 is slidably mounted in the mounting groove 13. The locking device is located on the upper housing 12 and locks into the material cylinder 4. The locking device includes two locking rotating covers 6, which are rotatably mounted on the left and right sides of the upper housing 12, respectively. Each of the two locking rotating covers 6 has a locking groove 71 on its opposite surface. The circumferential surfaces of the two locking rotating covers 6 have outwardly protruding unlocking protrusions 73. The left and right sides of the material cylinder 4 each have a locking protrusion 72 and an unlocking protrusion 74. One end of the locking groove 71 is an open end 711, and the other end is a locking end 712. The open end 711 faces the locking protrusion 72. When locked, the locking protrusion 72 engages with the locking groove 71. When unlocked, the unlocking protrusion 73 abuts against the unlocking protrusion 74, thus pushing the material cylinder 4 forward. The locking end 712 of the locking groove 71 extends towards the axis of the locking rotating cover 6 to form a cam groove. The distance between the open end 711 of the locking groove 71 and the axis of the locking rotating cover 6 is greater than the distance between the locking end 712 of the locking groove 71 and the axis of the locking rotating cover 6. Traditional beverage machines can only unlock the dispensing cylinder 4 when disassembling it, but cannot move it forward. Because the sealing ring may stick, the cylinder 4 needs to be manually pulled forward, making disassembly difficult. Furthermore, the locking protrusion 72 easily gets stuck in the locking groove 71. Pulling the cylinder 4 forward also requires simultaneously rotating the locking cover 6, making the operation complex, time-consuming, and labor-intensive. This invention, however, rotates the locking cover 6 backward, causing the locking groove 71 to rotate, thereby fixing the locking protrusion 72 within the locking groove 71. As the locking cover 6 continues to rotate, it moves the locking protrusion 72 to the locking end 712. Since the distance between the opening end 711 of the locking groove 71 and the axis of the locking cover 6 is greater than the distance between the locking end 712 of the locking groove 71 and the axis of the locking cover 6, this invention addresses the issue of the locking protrusion 72 being unable to move forward due to the need for manual pulling. When the material cylinder 4 is pulled back and tightened, it is tightly connected to the upper housing 12. At this time, the locking cover 6 is in the locked position and is fixed by a cam groove. The structure is simple, low cost, and easy to disassemble the material cylinder for cleaning. When unlocking, the locking cover 6 is rotated forward, so that the unlocking protrusion 73 abuts against the unlocking protrusion 74. Continuing to rotate the locking cover 6 forward, the unlocking protrusion 73 pushes the unlocking protrusion 74 to drive the material cylinder 4 forward a certain distance, thereby separating the material cylinder 4 from the upper housing 12. There is no need to pull the material cylinder 4 forward, making the disassembly of the material cylinder 4 more time-saving and labor-saving, and easier to operate. At the same time, the locking protrusion 72 moves out of the locking slide groove 71 from the opening end 711. At this time, the locking cover 6 is in the unlocked position, which avoids the locking protrusion 72 from getting stuck in the locking slide groove 71 and improves the unlocking success rate.

[0036] Specifically, the two locking covers 6 are provided with arc-shaped locking grooves 75 on their opposite sides. Arc-shaped locking springs 76 are provided in the locking grooves 75. One end of the locking springs 76 is a free end 761 and the other end is a connecting end 762. The connecting end 762 is formed at one end of the locking groove 75 and extends to the other end of the locking groove 75. A locking buckle 763 is provided on one side of the connecting end 762. Locking protrusions 77 are provided on the left and right sides of the upper housing 12 respectively. The locking protrusions 77 are inserted into the locking grooves 75 and are limited to the locking grooves 75. When locked, the locking protrusions 77 and the locking buckles 763 abut against each other. The locking protrusion 77 is limited by the locking groove 75, thereby restricting the rotation angle of the locking cover 6. This allows the locking cover 6 to rotate between the unlocked and locked positions, eliminating the need for manual alignment of the locked and unlocked positions during use, making it more convenient and facilitating blind operation. Simultaneously, when locking, the locking spring 76 moves below the locking protrusion 77, causing the locking latch 763 to abut against the locking protrusion 77, thus locking and securing the locking cover 6. This further enhances the locking force and prevents accidental locking caused by vibration or other external factors, improving reliability and stability. Integrating limiting and secondary locking into one unit simplifies the structure, reduces installation space requirements, and lowers costs.

[0037] Specifically, the front of the left and right sides of the material cylinder 4 is provided with a first limiting slider 811, the rear of the left and right sides of the material cylinder 4 is provided with a second limiting slider 821, the front of the left and right sides of the mounting groove 13 is provided with a first limiting groove 812 with the opening facing forward, the two first limiting sliders 811 are respectively limited and cooperate with the two first limiting grooves 812, the upper edge of the rear of the left and right sides of the mounting groove 13 is respectively provided with a second limiting slide 822, the second limiting slide 822 is provided with a second limiting groove 823 with the opening facing forward, and the two second limiting sliders 821 are respectively limited and cooperate with the two second limiting grooves 823. By having the first limiting slider 811 and the second limiting slider 821 cooperate with the first limiting groove 812 and the second limiting groove 823 respectively, the material cylinder 4 can not only be limited in the vertical direction, but also play a guiding role in installation, forming fixed points at the four corners of the material cylinder 4 to improve the connection strength and connection stability of the material cylinder 4; at the same time, it can also limit the material cylinder 4 in the axial direction to avoid excessive compression of the sealing ring and improve the service life of the sealing ring.

[0038] Specifically, the unlocking protrusion 73 is provided with a first unlocking straight edge 731, a second unlocking straight edge 732, and an unlocking arc edge 733. The unlocking arc edge 733 connects between the first unlocking straight edge 731 and the second unlocking straight edge 732. The first unlocking straight edge 731 faces the unlocking protrusion 74. The first unlocking straight edge 731 and the unlocking arc edge 733 respectively abut against the unlocking protrusion 74. The length of the first unlocking straight edge 731 is greater than the length of the second unlocking straight edge 732. The first unlocking straight edge 731, the second unlocking straight edge 732, and the unlocking arc edge 733 connect to form a triangular unlocking protrusion 73. During unlocking, the first unlocking straight edge 731 first contacts and presses against the unlocking protrusion 74. During the unlocking process, the unlocking protrusion 74 moves along the first unlocking straight edge 731 towards the unlocking arc edge 733 until the unlocking protrusion 74 abuts against the unlocking arc edge 733, thereby completing the unlocking. The triangular unlocking protrusion 73 can achieve the maximum drive stroke while reducing the size of the unlocking protrusion 73, avoiding the abrupt feeling caused by the excessive size of the unlocking protrusion 73; of course, the unlocking protrusion 73 can also be set to an arc shape.

[0039] Specifically, the locking device is also equipped with a synchronizing link 9, with both ends of the synchronizing link 9 fixedly connected to two locking rotating covers 6 respectively. By connecting the two locking rotating covers 6 through the synchronizing link 9, the two locking rotating covers 6 can rotate synchronously, avoiding unlocking failure caused by asynchronous rotation, further improving the unlocking success rate, and making the operation more convenient.

[0040] Specifically, the locking cover 6 includes a cover body 61 and a cover surface 62. The cover body 61 is hollow inside, and an opening is provided on the side of the cover body 61 away from the upper housing 12. The cover surface 62 covers the opening of the cover body 61. A connecting post 63 is provided in the center of the cover body 61. A connecting shaft hole 631 is provided on the side of the connecting post 63 facing the synchronous connecting rod 9. A fixing hole 632 is provided on the side of the connecting post 63 facing the cover surface 62. The connecting shaft hole 631 communicates with the fixing hole 632. The synchronous connecting rod 9 is inserted into the connecting shaft hole 631. A fastening screw 64 passes through the fixing hole 632 and is threadedly connected to the synchronous connecting rod 9. A bushing 66 is provided between the synchronous connecting rod 9 and the upper housing 12. When installing the locking cover 6, first install the synchronizing rod 9 on the upper housing 12, and then fit a bushing 66 on the synchronizing rod 9 to prevent wear between the synchronizing rod 9 and the upper housing 12, reduce noise, and improve rotational smoothness. Next, install the cover 61 on the end of the synchronizing rod 9, inserting the end of the synchronizing rod 9 into the coupling hole 631. The coupling hole 631 is a flat groove, and the end of the synchronizing rod 9 is a flat rod. Then, lock the synchronizing rod 9 and the cover 61 with fastening screws 64. Finally, close the cover 62, which is connected to the cover 61 via a snap-fit ​​structure. The assembly steps are simple, improving production efficiency. At the same time, the hollow interior of the cover 61 reduces the weight of the locking cover 6, saves materials, and lowers costs.

[0041] Specifically, unlocking mark 781 and locking mark 782 are respectively provided on the left and right sides of the upper housing 12. Unlocking mark 781 and locking mark 782 are spaced apart along the axial direction of the locking cover 6. Unlocking mark 781 is located in front of locking mark 782. An indicator mark 783 is provided on the circumferential surface of the locking cover 6. When unlocked, indicator mark 783 points to unlocking mark 781, and when locked, indicator mark 783 points to locking mark 782. Multiple anti-slip grooves 65 are spaced apart along the circumferential direction on the circumferential surface of the locking cover 6. By setting unlocking mark 781 and locking mark 782, and using locking mark 782 for indication, it is easy to clearly know whether the locking cover 6 is in the unlocked or locked position, reducing the learning cost and making it easy to operate. The anti-slip grooves 65 facilitate the gripping operation of the locking cover 6 and play a role in preventing slippage.

[0042] Specifically, the refrigeration unit includes an evaporator 21, a condenser, and a compressor. The evaporator 21 is fixedly installed on the front side of the upper casing 12, while the condenser and compressor are fixedly installed in the lower casing 11. The evaporator 21 and condenser are connected to the compressor. An installation port is provided on the rear side of the barrel 4 corresponding to the position of the evaporator 21. The stirring device includes a spiral scraper 31, a stirring motor, a reduction mechanism, and a stirring drive rod. The stirring motor and the reduction mechanism are both located in the upper casing 12. The stirring motor is connected to the reduction mechanism. The spiral scraper 31 is rotatably installed around the evaporator 21, and the stirring drive rod is rotatably installed inside the evaporator 21. The front end of the stirring drive rod protrudes from the front side of the evaporator 21 and is fixedly connected to the spiral scraper 31. The rear end of the stirring drive rod is fixedly connected to the output end of the reduction mechanism. The installation port is used to pass through the evaporator 21 and the spiral scraper 31. The condenser and compressor are located in the lower casing 11 to make full use of the installation space, while the stirring motor and reduction mechanism are located in the upper casing 12 to shorten the transmission distance and make the structure more compact, thereby reducing the overall size of the machine.

[0043] A safety switch 15 is installed on the front side of the upper housing 12, and a trigger protrusion is installed on the rear side of the material cylinder 4 corresponding to the position of the safety switch 15. When locked, the trigger protrusion engages with the safety switch 15. To prevent accidental activation of the mixing motor after disassembling the material cylinder 4, which could cause a safety hazard, the mixing motor will not start when the safety switch 15 is not triggered. After the material cylinder 4 is installed, the trigger protrusion triggers the safety switch 15, thereby allowing the mixing motor to start, thus improving safety. The safety switch 15 is a micro switch or a non-contact switch.

[0044] Specifically, a water receiving box 14 is snapped onto the front end of the mounting groove 13, and a downwardly protruding third limiting strip 83 is provided at the lower part of the material cylinder 4. The third limiting strip 83 is matched with the front side of the water receiving box 14 for limiting. During the disassembly of the material cylinder 4, residues inside the material cylinder 4 may easily flow out from the installation port, or residues on the evaporator 21 and the spiral scraper 31 may fall off. Therefore, the water receiving box 14 is used to collect the fallen residues for easy cleaning. Since the water receiving box 14 is fixed by snapping for easy disassembly, it is easy to fall off under vibration. Therefore, the third limiting strip 83 is used to clamp and fix the water receiving box 14, thereby preventing the water receiving box 14 from falling off accidentally and improving reliability and stability.

[0045] The above description is only a preferred embodiment of this utility model. For those skilled in the art, there will be changes in the specific implementation method and application scope based on the idea of ​​this utility model. The content of this specification should not be construed as a limitation of this utility model.

Claims

1. A beverage machine with an improved cylinder locking structure, comprising a body (1) and a cylinder (4) disposed on the body (1), a cooling device, a stirring device, and a locking device, wherein the body (1) comprises an upper housing (12) and a lower housing (11), the upper housing (12) being disposed at the rear of the upper end face of the lower housing (11), and a mounting groove (13) being disposed at the front of the upper end face of the upper housing (12), the cylinder (4) being slidably mounted in the mounting groove (13), and the locking device being disposed on the upper housing (12) and lockingly engaged with the cylinder (4), characterized in that: The locking device includes two locking covers (6), which are rotatably installed on the left and right sides of the upper housing (12). A locking groove (71) is provided on the opposite side of the two locking covers (6). An unlocking protrusion (73) is provided on the circumferential surface of the two locking covers (6). A locking protrusion (72) and an unlocking protrusion (74) are provided on the left and right sides of the material cylinder (4). One end of the locking groove (71) is an open end (711) and the other end is a locking end (712). The open end (711) is directly opposite the locking protrusion (72). When locked, the locking protrusion (72) locks and engages with the locking groove (71). When unlocked, the unlocking protrusion (73) abuts against the unlocking protrusion (74) to push the material cylinder (4) forward.

2. A beverage machine with an improved cylinder locking structure according to claim 1, characterized in that: The two locking covers (6) are provided with arc-shaped locking grooves (75) on their opposite sides. Arc-shaped locking springs (76) are provided in the locking grooves (75). One end of the locking springs (76) is a free end (761) and the other end is a connecting end (762). The connecting end (762) is formed at one end of the locking groove (75) and extends to the other end of the locking groove (75). A locking buckle (763) is provided on one side of the connecting end (762). Locking protrusions (77) are provided on the left and right sides of the upper box (12). The locking protrusions (77) are inserted into the locking grooves (75) and are limited to the locking grooves (75). When locked, the locking protrusions (77) and the locking buckles (763) abut against each other.

3. A beverage machine with an improved cylinder locking structure according to claim 1, characterized in that: The locking end (712) of the locking slide (71) extends toward the axis of the locking cover (6) to form a cam groove, and the distance between the opening end (711) of the locking slide (71) and the axis of the locking cover (6) is greater than the distance between the locking end (712) of the locking slide (71) and the axis of the locking cover (6).

4. A beverage machine with an improved cylinder locking structure according to claim 1, characterized in that: The front of the left and right sides of the material cylinder (4) is provided with a first limiting slider (811), and the rear of the left and right sides of the material cylinder (4) is provided with a second limiting slider (821). The front ends of the left and right sides of the mounting slide (13) are provided with a first limiting groove (812) with the opening facing forward. The two first limiting sliders (811) are respectively limited and cooperated with the two first limiting grooves (812). The upper edge of the rear of the left and right sides of the mounting slide (13) is respectively provided with a second limiting slide (822). The second limiting slide (822) is provided with a second limiting groove (823) with the opening facing forward. The two second limiting sliders (821) are respectively limited and cooperated with the two second limiting grooves (823).

5. A beverage machine with an improved cylinder locking structure according to claim 1, characterized in that: The front end of the mounting groove (13) is engaged with a water receiving box (14), and the lower part of the material cylinder (4) is provided with a downward protruding third limiting strip (83), which is matched with the front side of the water receiving box (14).

6. A beverage machine with an improved cylinder locking structure according to claim 1, characterized in that: The unlocking protrusion (73) is provided with a first unlocking straight edge (731), a second unlocking straight edge (732) and an unlocking arc edge (733). The unlocking arc edge (733) is connected between the first unlocking straight edge (731) and the second unlocking straight edge (732). The first unlocking straight edge (731) faces the unlocking protrusion (74). The first unlocking straight edge (731) and the unlocking arc edge (733) respectively abut against the unlocking protrusion (74). The length of the first unlocking straight edge (731) is greater than the length of the second unlocking straight edge (732).

7. A beverage machine with an improved cylinder locking structure according to claim 1, characterized in that: The locking device is also provided with a synchronous link (9), the two ends of which are fixedly connected to the two locking covers (6).

8. A beverage machine with an improved cylinder locking structure according to claim 7, characterized in that: The locking cover (6) includes a cover body (61) and a cover surface (62). The cover body (61) is hollow inside. An opening is provided on the side of the cover body (61) away from the upper housing (12). The cover surface (62) covers the opening of the cover body (61). A connecting post (63) is provided in the center of the cover body (61). A connecting shaft hole (631) is provided on the side of the connecting post (63) facing the synchronous connecting rod (9). A fixing hole (632) is provided on the side of the connecting post (63) facing the cover surface (62). The connecting shaft hole (631) communicates with the fixing hole (632). The synchronous connecting rod (9) is inserted into the connecting shaft hole (631). A fastening screw (64) passes through the fixing hole (632). The fastening screw (64) is threadedly connected to the synchronous connecting rod (9). A bushing (66) is provided between the synchronous connecting rod (9) and the upper housing (12).

9. A beverage machine with an improved cylinder locking structure according to claim 1, characterized in that: The upper housing (12) is provided with an unlock mark (781) and a lock mark (782) on its left and right sides respectively. The unlock mark (781) and the lock mark (782) are provided at intervals along the axial direction of the locking cover (6). The unlock mark (781) is located in front of the lock mark (782). The circumferential surface of the locking cover (6) is provided with an indicator mark (783). When unlocking, the indicator mark (783) points to the unlock mark (781). When locking, the indicator mark (783) points to the lock mark (782). The locking cover (6) has multiple anti-slip grooves (65) spaced apart along the circumferential direction on its circumferential surface.

10. A beverage machine with an improved cylinder locking structure according to any one of claims 1 to 9, characterized in that: The refrigeration device includes an evaporator (21), a condenser and a compressor. The evaporator (21) is fixedly installed on the front side of the upper casing (12), and the condenser and compressor are fixedly installed in the lower casing (11). The evaporator (21) and the condenser are respectively connected to the compressor. The rear side of the barrel (4) is provided with an installation port corresponding to the position of the evaporator (21). The stirring device includes a spiral scraper (31), a stirring motor, a reduction mechanism, and a stirring drive rod. The stirring motor and the reduction mechanism are both located inside the upper housing (12). The stirring motor is connected to the reduction mechanism. The spiral scraper (31) is rotatably installed on the periphery of the evaporator (21). The stirring drive rod is rotatably installed inside the evaporator (21). The front end of the stirring drive rod extends out of the front side of the evaporator (21) and is fixedly connected to the spiral scraper (31). The rear end of the stirring drive rod is fixedly connected to the output end of the reduction mechanism. A safety switch (15) is provided on the front side of the upper housing (12), and a trigger protrusion is provided on the rear side of the material cylinder (4) corresponding to the position of the safety switch (15). When locked, the trigger protrusion and the safety switch (15) are triggered to cooperate.

Images