A device based on discharge height difference adjustment and material splash prevention

Abstract

The utility model discloses an equipment based on discharge height difference adjustment and material splashproof, including the discharge device of providing powder material, the mixing bin of opening, the output of discharge device is provided with the discharge elbow pipe of 90 degree bending, and the vertical pipe of discharge elbow pipe is located the just above of mixing bin, the ring cover body of bottom surface is equipped with the opening of the air scoop, and the outer ring surface cover of air scoop is equipped with and coaxial connection mixing bin's opening, and the inner ring surface of air scoop has interval with vertical pipe in radial, the vertical distance of the end face of the output of vertical pipe of discharge elbow pipe to the bottom end of the inner ring surface of air scoop and the vertical distance of the horizontal pipe axis of discharge elbow pipe to the bottom end of inner ring surface's ratio is 16% 50%, and the powder material of discharge device falls to the mixing bin through horizontal pipe, vertical pipe, the axis of air scoop in proper order. Increase discharge elbow pipe, and the vertical pipe of discharge elbow pipe is more smooth and concentrated when making powder fall into the mixing bin below through lengthening and flowing, reduces the spillover.

Description

Technical Field

[0001] This utility model relates to the technical field of beverage machines, and in particular to a device based on adjusting the discharge height difference and preventing material splashing. Background Technology

[0002] Currently, all beverage machines, both domestically and internationally, that use powdered ingredients, such as coffee machines, milk tea machines, soy milk machines, and multigrain machines, face a significant problem: the mixing chamber is not connected to the ingredient container by a sealed cover. As a result, the powder cannot enter the mixing process directly and instead splashes outside the mixing chamber, causing uneven beverage concentration and wasting ingredients. However, this reduces the difficulty of cleaning.

[0003] Therefore, a device is needed that prevents material spillage based on the discharge height difference adjustment and material splash prevention. Utility Model Content

[0004] The purpose of this invention is to provide a device that prevents material spillage based on the adjustment of the discharge height difference and the prevention of material splashing.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A device based on discharge height difference adjustment and material splash prevention includes a discharge device for providing powder and an open mixing chamber;

[0007] The output end of the discharge device is equipped with a 90° bent discharge bend, and the vertical pipe of the discharge bend is located directly above the mixing chamber.

[0008] The air hood is an annular cover with an opening on the bottom surface. The outer ring of the air hood covers and is coaxially and detachably connected to the opening of the mixing chamber. The inner ring of the air hood is radially spaced from the vertical pipe.

[0009] The ratio of the vertical distance from the end face of the vertical outlet of the discharge bend to the bottom of the inner ring surface of the air duct to the vertical distance from the horizontal pipe axis of the discharge bend to the bottom of the inner ring surface is 16%-50%.

[0010] The powder from the discharge device falls sequentially through the horizontal pipe, vertical pipe, and induced draft hood onto the mixing chamber.

[0011] Furthermore, the ratio of the inner diameter of the vertical tube to the inner diameter of the bottom end of the inner ring surface is 1 / 2 to 3 / 4.

[0012] Furthermore, the discharge device includes a material box for providing powder, the material box being equipped with a rotatable screw feeder, the output end of the screw feeder being a shaftless design with the blades suspended in the middle; the screw feeder and the horizontal pipe are coaxially arranged.

[0013] Furthermore, it also includes an exhaust system, a water tank for providing hot water, and a mixing chamber for receiving hot water and powder.

[0014] The exhaust device includes the air hood, air duct, and main ventilation duct connected in sequence, and also includes an exhaust fan that provides power to the exhaust device;

[0015] The outer ring surface of the air duct is connected to the air duct.

[0016] The hot air from the mixing chamber is discharged from the equipment through the opening of the exhaust hood, the exhaust pipe, and the main ventilation pipe.

[0017] Furthermore, when there are multiple discharge devices used to provide various powders, the number of air hoods is equal to the number of discharge bends, and the air ducts are provided with multiple air inlets, each of which is connected to the outer ring surface of the air hood.

[0018] Furthermore, the discharge device includes the material box, the discharge port and the discharge bend connected in sequence, and the spiral feeding rod is provided at the bottom of the inside of the material box;

[0019] The discharge pipe is horizontally positioned and used to connect the discharge port of the material box and the discharge bend.

[0020] The spiral feed rod is used for feeding materials and includes a central shaft and blades fixed on the central shaft. The end of the spiral feed rod near the discharge port adopts a shaftless design so that the length of the blades is greater than the length of the central shaft of the spiral feed rod.

[0021] Furthermore, the water tank is located below the feed box.

[0022] Furthermore, the inner diameter of the horizontal pipe of the discharge bend is larger than the inner diameter of the vertical pipe.

[0023] In the above technical solution, the device of this utility model based on discharge height difference adjustment and material splash prevention has the following beneficial effects:

[0024] Firstly, the falling path of the powder between the discharge device and the mixing chamber was restricted and guided by the discharge bend and the exhaust hood, making the powder more concentrated when it leaves the discharge device and falls into the mixing chamber. In addition, the arrangement of the height of the discharge bend and the exhaust hood was studied. It was found that when the ratio of the vertical distance from the end face of the vertical outlet of the discharge bend to the bottom of the inner ring of the exhaust hood to the vertical distance from the horizontal axis of the discharge bend to the bottom of the inner ring is 16%-50%, the powder flows more smoothly and concentratedly when falling into the mixing chamber below, reducing spillage, and eliminating the need for a sealing cover, which facilitates cleaning. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0026] Figure 1 A schematic diagram of the structure of the device provided by this utility model;

[0027] Figure 2 A schematic diagram of the material discharge device provided by this utility model;

[0028] Figure 3 This is a schematic diagram of the structure of the spiral feeder provided by this utility model;

[0029] Figure 4 A schematic diagram of the structure of the air duct provided by this utility model;

[0030] Figure 5 This is a schematic diagram of the structure of the discharge bend provided by this utility model;

[0031] Figure 6 A schematic diagram of the structure of the air duct provided by this utility model;

[0032] Figure 7 A front view structural schematic diagram of the air duct provided by this utility model;

[0033] Figure 8 A top view of the assembly structure of the air duct and air pipe provided by this utility model;

[0034] Figure 9 A schematic diagram showing the vertical distance between the discharge bend and the exhaust hood provided by this utility model;

[0035] Figure 10 A schematic diagram of the assembly structure of the discharge device and exhaust device with the mixing chamber provided by this utility model.

[0036] In the diagram: 1. Exhaust hood; 2. Exhaust pipe; 3. Main ventilation pipe; 4. Exhaust fan; 5. Water tank; 6. Mixing chamber; 7. Discharge bend; 8. Spiral feed rod; 9. Discharge port; 10. Material box; 11. Water pipe; 14. Motor. Detailed Implementation

[0037] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0038] It should be noted that the terms "above," "one end," "up," etc. used in this document indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description. Similar expressions are only for illustrative purposes and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "part," "two parts," etc. are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0039] like Figure 1-10 The device shown is based on the adjustment of discharge height difference and material splash prevention, including a discharge device for providing powder and an open mixing chamber 6.

[0040] The output end of the discharge device is equipped with a 90° bent discharge bend 7, and the vertical pipe of the discharge bend 7 is located directly above the mixing chamber 6.

[0041] The exhaust hood 1 is an annular cover with an opening on its bottom surface. The outer ring of the exhaust hood 1 covers and is coaxially and detachably connected to the opening of the mixing chamber 6. The inner ring of the exhaust hood 1 is radially spaced from the vertical pipe. The mixing chamber 6 is open at the top, and the outer ring of the exhaust hood 1 seals the edge of the opening of the mixing chamber 6, preventing powder from easily escaping outside the mixing chamber 6. The exhaust hood 1 and the mixing chamber 6 can be disassembled and connected using fasteners, threaded connections, socket connections, or other methods.

[0042] There is a vertical gap between the vertical pipe and the exhaust hood. The ratio of the vertical distance from the end face of the outlet of the vertical pipe of the discharge bend 7 to the bottom of the inner ring surface of the exhaust hood 1 to the vertical distance from the horizontal pipe axis of the discharge bend 7 to the bottom of the inner ring surface is 16%-50%. Due to the increase in the length of the vertical pipe, the phenomenon of powder spilling onto the exhaust hood after exiting the bend is effectively reduced.

[0043] Because the beverage machine's dispenser and mixing chamber need to be frequently disassembled for cleaning, this new type of dispenser and discharge bend are designed as a single unit, separate from the mixing chamber for easy cleaning. Simultaneously, the position of the end of the discharge bend must ensure smooth and concentrated material flow; therefore, the position of the end of the discharge bend is particularly important. The ratio H / H is the vertical distance from the end face of the vertical outlet of the discharge bend 7 to the bottom of the inner ring surface of the draft hood 1, to the vertical distance from the horizontal axis of the discharge bend 7 to the bottom of the inner ring surface. 总 =16%-50%, this concentrates the material flow, avoids the use of a sealed cover, and is easy to clean.

[0044] The powder from the discharge device passes sequentially through the horizontal pipe, vertical pipe, and the axis of the exhaust hood 1 before falling into the mixing chamber 6.

[0045] In a preferred embodiment, the ratio of the inner diameter of the vertical pipe to the inner diameter of the bottom end of the inner ring surface is 1 / 2-3 / 4, thus preventing material from easily adhering to the wall. The discharge bend is 7-point. Figure 5 The horizontal pipe (section a) and vertical pipe (section b) are modified by adjusting the ratio of the inner diameter of the vertical pipe to the inner diameter of the bottom end of the inner ring surface to 1 / 2-3 / 4. The discharge bend (section b) is lengthened and its diameter reduced to ensure smoother and more concentrated flow of the powder as it falls into the lower mixing chamber, reducing spillage. This invention's discharge bend, through its lengthened or variable diameter design, ensures smoother and more concentrated flow of the powder as it falls into the lower mixing chamber, reducing material spillage on the exhaust hood, maintaining the cleanliness of the equipment, and minimizing material waste.

[0046] Optionally, the ratio of the vertical diameter of the discharge bend to the inner diameter of the inner ring of the draft hood is 7:10. In this example, the purpose is achieved by reducing the diameter of the bend. The inner diameter of the inner ring of the draft hood is 40mm. Figure 7 M = 40mm). In the example, the inner diameter of the vertical section of the discharge bend is 28mm. Figure 5 (L=28mm), the diameter ratio of the discharge bend to the exhaust hood is 7:10. Alternatively, the diameter of the discharge bend can be reduced while increasing the diameter of the exhaust hood, or the diameter of the exhaust hood can be increased alone to achieve the desired result. If the diameter ratio of the discharge bend to the exhaust hood is less than 1:2, the material adhesion to the wall will be exacerbated.

[0047] In a preferred embodiment, the discharge device includes a material box 10 for providing powder, the material box 10 is provided with a rotatable screw feed rod 8, the output end of the screw feed rod 8 is shaftless and the axial center of the blade is suspended; the screw feed rod 8 and the horizontal pipe are coaxially arranged.

[0048] The discharge device includes a 90° bent discharge bend 7 connecting to the material box 10. The material box 10 is equipped with a rotatable screw feeder 8. The output end of the screw feeder 8 is shaftless, with the blades suspended in the middle. The input end of the screw feeder 8 is rotatably supported by the material box 10. A motor is installed on the material box 10, driving the screw feeder 8 to rotate. The screw feeder 8 is placed horizontally for feeding materials. The output end of the screw feeder 8 is shaftless, meaning the blades are suspended in the middle without a central shaft. The central shaft is shortened, and the blades are helical, arranged around the central shaft. The non-suspended blade portion is fixed to the central shaft. This design allows for a shaftless screw feeder at the discharge port and shortens the central shaft length. Existing equipment uses traditional shafted screw feeders with a central shaft throughout. This new design uses a shaftless helical design at the end of the screw feeder, significantly reducing the adhesion area of ​​the raw material on the screw. Shortening the central shaft length reduces the area exposed to hot air, thus mitigating the adverse effects of heat on the central shaft and raw materials. The shaftless design reduces obstruction caused by the shaft structure during material discharge. Without compromising discharge efficiency, a portion of the screw feed rod is designed to be shaftless, and the length of the feed screw, i.e., the central shaft, is shortened. Optionally, the blade overhang length is two screw pitches, exposing two rings of blades.

[0049] In a preferred embodiment, it also includes an exhaust system, a water tank 5 for providing hot water, and a mixing chamber 6 for receiving hot water and powder.

[0050] The exhaust system includes an exhaust hood 1, an exhaust pipe 2, and a main ventilation pipe 3 connected in sequence, and also includes an exhaust fan 4 that provides power to the exhaust system; the exhaust hood serves both as a material guide and an exhaust fan. The outer ring of the exhaust hood 1 is connected to the exhaust pipe 2.

[0051] The hot air from the mixing chamber 6 is discharged from the equipment through the opening of the exhaust hood 1, through the exhaust pipe 2, and the main ventilation pipe 3.

[0052] The exhaust system includes an exhaust hood 1, an exhaust pipe 2, and a main ventilation pipe 3 connected in sequence, and also includes an exhaust fan 4 that provides power to the exhaust system. The exhaust system is used to remove hot air from the mixing chamber 6.

[0053] The draft hood 1 is an annular hood with an opening on its bottom surface. The draft hood 1 includes an inner annular surface and an outer annular surface arranged coaxially and spaced apart. The tops of the inner and outer annular surfaces are connected as a single unit. The bottom of the inner annular surface is not required to be flush with the bottom of the outer annular surface. The outer annular surface corresponds to the outer surface dimension of the mixing chamber 6, and the outer annular surface of the draft hood 1 covers and connects to the mixing chamber 6. The inner annular surface of the draft hood 1 is located directly below the vertical pipe of the discharge bend 7. The inner annular surface of the draft hood 1 and the vertical pipe are radially spaced, i.e., the vertical pipe is thinner and the inner annular surface is thicker, which facilitates the passage of powder in the vertical pipe through the axis of the draft hood. The outer annular surface of the annular hood is connected to the draft pipe 2.

[0054] To address the problems of raw material sticking and spillage due to moisture during discharge, as well as low ventilation efficiency in existing equipment, this embodiment employs an upgraded spiral feeder, an exhaust duct that works in conjunction with the exhaust hood, and an improved discharge bend. The exhaust duct directly works with the exhaust hood to improve exhaust efficiency, reduce residual heat inside the equipment, and effectively prevent excessive heat from causing moisture absorption in some of the raw material at the discharge port.

[0055] The powder falls into the mixing chamber 6 through the axis of the material box 10, the discharge bend 7, and the exhaust hood 1. The hot air from the mixing chamber 6 is discharged from the beverage machine through the opening of the exhaust hood 1, the exhaust pipe 2, and the main ventilation pipe 3.

[0056] In this embodiment, motor 14 controls the movement direction of the screw feeder 8 by reversing its rotation. The blades of the screw feeder are designed with a curved structure to propel the powder forward in a rotating manner, achieving forward conveying of the powder. The discharge bend 7 is located at the end of the screw feeder. Under the push of the screw feeder, the powder passes through the discharge bend 7, is guided by it, passes through the central part of the exhaust hood 3, and finally smoothly enters the mixing chamber 6 below. The exhaust hood has a hollow center design to allow material to pass through. The space between the inner and outer annular surfaces is the initial end of the exhaust system, where hot air is drawn away by the exhaust fan.

[0057] The screw feeder pushes the powder through the discharge bend, guides it through the draft hood, and drops it into the mixing chamber. The inner ring of the draft hood is hollow in the middle, allowing the powder to pass through. Simultaneously with the discharge, hot water enters the mixing chamber 6 from the water tank 5 through the water pipe 11. The hot water is added to mix with the powder to prepare the beverage. The stirring device (not shown) inside the mixing chamber 6 starts working, thoroughly mixing the powder and hot water to prepare a homogeneous beverage. At this time, most of the hot steam generated by the hot water will remain below the discharge bend.

[0058] Simultaneously with material discharge, the exhaust fan starts, and hot air is expelled from the equipment through the induced draft hood above the mixing chamber, induced draft pipe 2, and main ventilation pipe 3. This ensures good ventilation inside the equipment and prevents the powder from getting damp. The improved ventilation duct is directly connected to the induced draft hood; this design reduces ventilation resistance and improves ventilation efficiency, allowing heat and gas to be expelled from the equipment more quickly. This keeps the powder dry and prevents it from sticking to the screw feeder due to moisture, thus ensuring a smooth discharge process.

[0059] The improved ventilation system enhances ventilation, prevents excessive heat buildup that could cause the raw materials at the discharge port to become damp, and avoids the raw materials sticking to the screw feeder due to moisture.

[0060] This invention provides a device that can prevent raw materials from becoming damp and sticky due to the influence of hot water steam at the discharge port. Without adding a sealing cover or similar structure, it can effectively reduce the impact of hot water steam on the equipment during discharge, and largely solve the technical problem of raw materials becoming damp and sticky. This ensures that the equipment can discharge smoothly and efficiently for a long time, while maintaining the simplicity and speed of operation, and providing users with a higher quality and more stable beverage making experience.

[0061] In a preferred embodiment, multiple discharge devices are used to provide various powders, enabling the production of beverages with multiple flavors. The number of exhaust hoods 1 is equal to the number of discharge bends 7, with each powder corresponding to a mixing chamber. The exhaust pipe 2 is provided with multiple air inlets, each connected to one exhaust hood 1. All exhaust hoods 1 are connected to a single exhaust pipe 2, which is multi-port. The exhaust pipe replaces the exhaust box, more centrally guiding hot air out of the equipment. The powerful exhaust pipe can quickly and centrally expel large amounts of hot air, improving ventilation and effectively preventing excessive hot air retention.

[0062] In a preferred embodiment, the exhaust duct and the exhaust hood are connected by a socket joint, resulting in a smoother exhaust path and a more concentrated exhaust process. Driven by the exhaust fan, the hot air passes sequentially through the exhaust hood and the multi-channel exhaust duct, and is finally discharged outside the equipment.

[0063] In a preferred embodiment, the discharge device includes a material box 10, a discharge port 9 and a discharge bend 7 connected in sequence, and a spiral feeding rod 8 is provided at the bottom of the inside of the material box 10.

[0064] The discharge port 9 is horizontally set and used to connect the discharge port of the material box 10 and the horizontal pipe of the discharge bend 7;

[0065] The screw feeder 8 is used for feeding material and includes a central shaft and blades fixed on the central shaft. The end of the screw feeder 8 near the discharge port 9 is designed without a shaft, making the blade length greater than the length of the central shaft of the screw feeder 8. The discharge bend 7 is divided into... Figure 5 The system consists of a horizontal pipe section a and a vertical pipe section b. The top of the vertical pipe connects to the bottom of the horizontal pipe. The outlet bend and the outlet pipe 9 are connected by a socket joint.

[0066] In a preferred embodiment, the water tank 5 is located below the feed box 10.

[0067] In a preferred embodiment, the inner diameter of the horizontal pipe of the discharge bend 7 is larger than the inner diameter of the vertical pipe. The inner diameter of the horizontal pipe, i.e., section a, of the discharge bend is larger than the inner diameter of the vertical pipe, i.e., section b. Compared with a right-angle equal-diameter bend, considering the existing equipment's matching issues between the discharge bend and the exhaust hood, the diameter ratio between the discharge bend and the exhaust hood is appropriately reduced, making it less likely for powder to spill onto the exhaust hood during discharge.

[0068] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A device based on discharge height difference adjustment and material splash prevention, characterized in that, Includes a powder discharge device and an open mixing chamber (6); The output end of the discharge device is provided with a 90° bent discharge bend (7), and the vertical pipe of the discharge bend (7) is located directly above the mixing chamber (6); The air hood (1) is an annular cover with an opening on the bottom surface. The outer ring surface of the air hood (1) covers and is coaxially and detachably connected to the opening of the mixing chamber (6). The inner ring surface of the air hood (1) is radially spaced from the vertical pipe. The ratio of the vertical distance from the end face of the vertical pipe outlet of the discharge bend (7) to the bottom of the inner ring surface of the air duct (1) to the vertical distance from the horizontal pipe axis of the discharge bend (7) to the bottom of the inner ring surface is 16%-50%. The powder from the discharge device passes through the horizontal pipe, vertical pipe, and the axis of the exhaust hood (1) and falls into the mixing chamber (6).

2. The device based on discharge height difference adjustment and material splash prevention according to claim 1, characterized in that, The ratio of the inner diameter of the vertical tube to the inner diameter of the bottom end of the inner ring surface is 1 / 2 to 3 / 4.

3. The device based on discharge height difference adjustment and material splash prevention according to claim 1, characterized in that, The discharge device includes a material box (10) for providing powder, and the material box (10) is provided with a rotatable spiral feed rod (8). The output end of the spiral feed rod (8) is shaftless and the axial center of the blade is suspended. The spiral feed rod (8) and the horizontal pipe are coaxially arranged.

4. The device based on discharge height difference adjustment and material splash prevention according to claim 1, characterized in that, It also includes an exhaust system, a water tank (5) for providing hot water, and a mixing chamber (6) for receiving hot water and powder. The exhaust device includes the air hood (1), air duct (2), and main ventilation duct (3) connected in sequence, and also includes an exhaust fan (4) that provides power to the exhaust device; The outer ring of the air duct (1) is connected to the air duct (2); The hot air from the mixing chamber (6) is discharged from the equipment through the opening of the ventilator (1) and then through the ventilator (2) and the main ventilation pipe (3).

5. The device based on discharge height difference adjustment and material splash prevention according to claim 4, characterized in that, When the number of discharge devices is multiple and used to provide various powders, the number of air hoods (1) is equal to the number of discharge bends (7), and the air duct (2) is provided with multiple air inlets, each of which is connected to the outer ring surface of the air hood (1).

6. The device based on discharge height difference adjustment and material splash prevention according to claim 3, characterized in that, The discharge device includes the material box (10), the discharge port (9) and the discharge bend (7) connected in sequence, and the spiral feeding rod (8) is provided at the bottom of the inside of the material box (10); The discharge port (9) is horizontally arranged and used to connect the discharge port of the material box (10) and the horizontal pipe of the discharge bend (7); The spiral feed rod (8) is used for feeding materials and includes a central shaft and blades fixed on the central shaft. The end of the spiral feed rod (8) near the discharge port (9) adopts a shaftless design so that the blade length is greater than the length of the central shaft of the spiral feed rod (8).

7. The device based on discharge height difference adjustment and material splash prevention according to claim 4, characterized in that, The water tank (5) is located below the feed box (10).

8. The device based on discharge height difference adjustment and material splash prevention according to claim 1, characterized in that, The inner diameter of the horizontal pipe of the discharge bend (7) is larger than the inner diameter of the vertical pipe.

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