Powder storage bin and powder making machine

Abstract

An embodiment of the present invention provides a powder storage bin and a powder making machine, which relate to the technical field of household appliances. The powder storage bin includes a bin body, a bin door, a quantitative agitator and a transmission mechanism. The bottom wall of the bin body is provided with a powder outlet, the bin door is located outside the bottom wall of the bin body, and the quantitative agitator is located in the bin body. The mechanism is penetrated through the bottom wall of the bin door and is used to selectively drive the quantitative agitator or the bin door, and when the transmission mechanism rotates forward, it can drive the bin door to rotate, and when the transmission mechanism rotates reversely, it can drive the quantitative agitator to rotate. In this way, by providing a transmission mechanism that can selectively drive the quantitative agitator or the bin door, the bin door or the quantitative agitator can be driven to rotate by driving the transmission mechanism forward or reversely through a driving source, thereby reducing the cost of the entire machine compared to the existing technology.

Description

Technical Field

[0001] The present invention relates to the technical field of household appliances, in particular to a powder storage bin and a powder dispensing machine. Background Art

[0002] Currently common milk making machines are usually equipped with a milk powder bin and a mixing bin. The milk powder bin is used to store a certain amount of milk powder, so that users can release the milk powder into the mixing bin and mix it with warm water to make milk. This greatly reduces the workload of taking care of infants and young children and provides more convenience.

[0003] To better preserve the milk powder, a door is typically installed between the milk powder bin and the mixing bin to seal the powder outlet. This door is then removed from the outlet only when the machine is in use, allowing the milk powder in the bin to flow into the mixing bin through the outlet. Furthermore, to ensure a certain amount of milk powder is maintained at the outlet so that it falls into the mixing bin under its own weight, a dosing agitator is installed inside the bin to scrape the powder toward the outlet.

[0004] However, in current milk making machines, the movement of the door and the movement of the quantitative stirrer each require a driving source to be driven separately, resulting in a high cost of the entire machine. Summary of the Invention

[0005] The purpose of the present invention is to provide a powder storage bin and a powder dispensing machine to reduce the cost of the entire machine.

[0006] In a first aspect, the present invention provides a powder storage bin, comprising:

[0007] A silo body, wherein the bottom wall of the silo body is provided with a powder outlet;

[0008] A bin door is located outside the bottom wall of the bin body;

[0009] A quantitative stirrer is located in the bin;

[0010] The transmission mechanism is provided through the bottom wall of the bin door and is used to selectively drive the quantitative stirrer or the bin door. When the transmission mechanism rotates forward, it can drive the bin door to rotate, and when the transmission mechanism rotates reversely, it can drive the quantitative stirrer to rotate.

[0011] In an optional embodiment, the transmission mechanism includes a support shaft and a first mating member and a second mating member mating with the support shaft;

[0012] The bin door is provided with a first mating part, and the quantitative stirrer is provided with a second mating part. When the support shaft rotates forward, the first mating part abuts against the first mating part, and the second mating part and the second mating part can slide with each other. When the support shaft rotates reversely, the second mating part abuts against the second mating part, and the first mating part and the first mating part can slide with each other.

[0013] In an optional embodiment, the first matching member is rotatably connected to the support shaft, and the first matching member has a first sliding surface and a first stop surface opposite to each other, and the first matching portion has a first guiding sliding surface and a first abutting surface opposite to each other;

[0014] When the support shaft rotates forward, the first stop surface abuts against the first abutting surface;

[0015] When the support shaft is reversed, the first sliding surface can slide relative to the first guide sliding surface to force the first matching member to rotate relative to the support shaft.

[0016] In an optional embodiment, at least one of the first sliding surface and the first guide sliding surface is an arc surface.

[0017] In an optional embodiment, the second fitting member is rotatably connected to the support shaft, and the second fitting member has a second sliding surface and a second stop surface opposite to each other, and the second fitting portion has a second guiding sliding surface and a second abutting surface opposite to each other;

[0018] When the support shaft is reversed, the second stop surface abuts against the second abutting surface;

[0019] When the support shaft rotates forward, the second sliding surface can slide relative to the second guide sliding surface to force the second matching member to rotate relative to the support shaft.

[0020] In an optional embodiment, at least one of the second sliding surface and the second guide sliding surface is an arc surface.

[0021] In an optional embodiment, the support shaft forms a first cavity, a first pin shaft and a first fixing portion are provided in the first cavity, the first fitting part can be rotatably sleeved on the first pin shaft, and a first elastic part is connected to the first fixing portion and the first fitting part so that the first fitting part extends out of the outer peripheral surface of the support shaft.

[0022] In an optional embodiment, the support shaft forms a second cavity, a second pin shaft and a second fixing portion are provided in the second cavity, the second fitting piece can be rotatably sleeved on the second pin shaft, and a second elastic piece is connected between the second fixing portion and the second fitting piece so that the second fitting piece extends out of the outer peripheral surface of the support shaft.

[0023] In an optional embodiment, a sensing element is further provided on the outer side of the bottom wall of the bin body, and the transmission mechanism is provided with an identification portion, and the sensing element can emit a sensing signal when facing the identification portion.

[0024] In a second aspect, the present invention provides a powder dispensing machine comprising the powder storage bin described in any one of the aforementioned embodiments.

[0025] The beneficial effects of the embodiments of the present invention include:

[0026] By setting up a transmission mechanism that can selectively drive either the quantitative stirrer or the bin door, the bin door or the quantitative stirrer can be driven to rotate by driving the transmission mechanism forward or reversely through a driving source, which reduces the cost of the entire machine compared to the existing technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the specific embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0028] Figure 1 Schematic diagram of a powder storage bin according to an embodiment of the present invention;

[0029] Figure 2 This is one of the exploded schematic diagrams of the powder storage bin according to an embodiment of the present invention;

[0030] Figure 3 This is the second exploded schematic diagram of the powder storage bin according to an embodiment of the present invention;

[0031] Figure 4 This is a schematic diagram of the combined structure of the bin body and the sealing ring according to an embodiment of the present invention;

[0032] Figure 5 Schematic diagram of a warehouse door according to an embodiment of the present invention;

[0033] Figure 6 This is one of the schematic diagrams of the quantitative tray according to an embodiment of the present invention;

[0034] Figure 7 This is a second schematic diagram of a quantitative tray according to an embodiment of the present invention;

[0035] Figure 8 This is an exploded schematic diagram of the combined structure of the blanking rack and the scraper according to an embodiment of the present invention;

[0036] Figure 9 This is a schematic diagram of a transmission mechanism according to an embodiment of the present invention;

[0037] Figure 10 This is a second schematic diagram of the transmission mechanism according to an embodiment of the present invention;

[0038] Figure 11 Schematic diagram of an exploded transmission mechanism according to an embodiment of the present invention;

[0039] Figure 12 This is a schematic diagram of the transmission mechanism after the third bracket is removed according to an embodiment of the present invention;

[0040] Figure 13 This is a schematic diagram of a second bracket according to an embodiment of the present invention;

[0041] Figure 14 This is a second schematic diagram of the second bracket according to an embodiment of the present invention;

[0042] Figure 15 Schematic diagram of the first matching piece or the second matching piece according to an embodiment of the present invention.

[0043] Icons: 10-bin; 11-middle through hole; 12-powder outlet; 13-sealing ring; 14-vacuum pipe; 20-bin door; 21-perforation; 22-first convex ring; 23-powder outlet; 24-first matching part; 240-first guide sliding surface; 241-first abutting surface; 30-quantitative agitator; 31-quantitative plate; 310-quantitative hole; 311-second convex ring; 312-third convex ring; 313-buckle groove; 32-impeller; 321-buckle hook; 322-powder scraper; 33-powder drop rack; 330-slot; 331-matching hole; 34-scraper; 35-second matching part; 350-second guide sliding surface; 351- Second abutment surface; 40-transmission mechanism; 41-support shaft; 410-first bracket; 411-second bracket; 412-third bracket; 413-first fixing portion; 414-second fixing portion; 415-first waist-shaped hole; 416-second waist-shaped hole; 417-identification portion; 42-first matching piece; 420-first sliding surface; 421-first stop surface; 422-first connecting column; 43-second matching piece; 430-second sliding surface; 431-second stop surface; 432-second connecting column; 44-first pin shaft; 45-second pin shaft; 46-first elastic member; 47-second elastic member; 50-driving source; 60-sensing member. DETAILED DESCRIPTION

[0044] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0045] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention as claimed, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort shall fall within the scope of protection of the present invention.

[0046] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0047] In the description of the present invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer" and the like indicate positions or locations based on the positions shown in the accompanying drawings, or the positions or locations in which the inventive product is typically placed when in use. These terms are intended solely to facilitate the description of the present invention and to simplify the description, and are not intended to indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first," "second," and "third," etc., are used solely to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0048] Furthermore, terms such as "horizontal," "vertical," and "overhanging" do not necessarily imply that a component must be absolutely horizontal or overhanging, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but rather that it can be slightly tilted.

[0049] In the description of the present invention, it should also be noted that, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; they may refer to mechanical connections or electrical connections; they may refer to direct connections or indirect connections through an intermediate medium; and they may refer to internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0050] The following embodiments of the present invention are described in detail with reference to the accompanying drawings. In the absence of conflict, the following embodiments and features in the embodiments may be combined with each other.

[0051] Please refer to Figures 1 to 3 An embodiment of the present invention provides a powder storage bin, including a bin body 10, a bin door 20, a quantitative stirrer 30 and a transmission mechanism 40.

[0052] The silo 10 is generally cylindrical, with an open top and a closed bottom. Thus, the silo 10 can be used to store powdered beverages such as milk powder and coffee powder. The bottom wall of the silo 10 is provided with a central through hole 11 and a powder outlet 12. Both the central through hole 11 and the powder outlet 12 extend through the bottom wall of the silo 10, and the central through hole 11 and the silo 10 are coaxial, i.e., the central through hole 11 is located at the center of the bottom wall of the silo 10.

[0053] The transmission mechanism 40 is provided through the bottom wall of the warehouse door 20 , and the transmission mechanism 40 is used to be connected to a driving source 50 , which may be a motor, so that the transmission mechanism 40 can rotate forward and reverse under the action of the driving source 50 .

[0054] The quantitative stirrer 30 is located in the silo 10 and is used to rotate, stir and push the milk powder in the silo 10 through the drive mechanism 40. When the milk powder reaches the powder outlet 12 of the silo 10, it falls out by its own weight.

[0055] The bin door 20 is located on the outside of the bottom wall of the bin body 10. Its function is to be driven by the transmission mechanism 40 to rotate to a position that blocks the powder outlet 12 to prevent the milk powder in the bin body 10 from falling, or to be moved away from the powder outlet 12 so that the milk powder in the bin body 10 falls out of the powder outlet 12.

[0056] The transmission mechanism 40 is used to selectively drive the quantitative stirrer 30 or the bin door 20 . When the transmission mechanism 40 rotates forward, it can drive the bin door 20 to rotate. When the transmission mechanism 40 rotates reversely, it can drive the quantitative stirrer 30 to rotate.

[0057] As described above, in this embodiment, a transmission mechanism 40 capable of selectively driving the quantitative stirrer 30 or the bin door 20 is provided, so that the bin door 20 or the quantitative stirrer 30 can be driven to rotate by a driving source 50 by driving the transmission mechanism 40 forward or reverse. Compared with the prior art, the cost of the entire machine is reduced.

[0058] Combine Figure 4 In this embodiment, the warehouse door 20 is roughly in the shape of a circular plate, one side of which is slidably fitted with the outer surface of the bottom wall of the warehouse door 20, and a through hole 21 is provided in the middle of the warehouse door 20. The through hole 21 is coaxial with the middle through hole 11, and a first convex ring 22 is formed on the warehouse door 20 and circumferentially surrounds the outside of the through hole 21. The first convex ring 22 is inserted into the middle through hole 11 from bottom to top, so that the warehouse door 20 can rotate relative to the warehouse body 10.

[0059] Combine Figure 5The silo door 20 is also provided with a through powder drop port 23. Therefore, when the silo door 20 is driven by the transmission mechanism 40 and rotates to a position where the powder outlet 12 and the powder drop port 23 are opposite, the milk powder in the silo body 10 can fall through the powder outlet 12 and the powder drop port 23 in sequence under the action of its own weight.

[0060] In addition, since one side of the bin door 20 is in sliding contact with the outer surface of the bottom wall of the bin body 10, the rotation of the bin door 20 can allow the inner peripheral wall of the powder drop port 23 to scrape off the milk powder from the powder outlet 12, thereby preventing milk powder from remaining in the powder outlet 12. When the bin door 20 blocks the powder outlet 12, water vapor is prevented from entering the bin body 10 along the powder outlet 12, effectively preventing the milk powder in the bin body 10 from getting damp, and preventing the milk powder in the bin body 10 from sticking to the powder outlet 12 after contact with air with high humidity or water vapor due to the sugar in the milk powder formula, which can easily cause blockage and mixing of new and old milk powder.

[0061] A sealing ring 13 is also provided at the powder outlet 12 on the silo body 10 so that the silo door 20 fits closely with the sealing ring 13 to ensure a sealing effect.

[0062] Of course, in some embodiments, the bin door 20 may also be fan-shaped, so there is no need to set up a powder outlet 23. As long as the bin door 20 is turned to a position covering the powder outlet 12, the powder outlet 12 can be blocked, and when the bin door 20 is turned to a position not covering the powder outlet 12, the powder outlet 12 can be opened.

[0063] Combine Figure 6 and Figure 7 In this embodiment, the quantitative stirrer 30 includes a quantitative disc 31 and an impeller 32. The quantitative disc 31 is used to connect to the transmission mechanism 40, and is provided with a quantitative hole 310. The quantitative hole 310 is used to accommodate milk powder. Therefore, when the transmission mechanism 40 drives the quantitative disc 31 to rotate until the quantitative hole 310 is aligned with the powder outlet 12, the milk powder in the quantitative hole 310 can fall into the powder outlet 12, and then fall into the mixing chamber when the chamber door 20 opens the powder outlet 12.

[0064] A second convex ring 311 is provided in the middle of the quantitative disk 31 , and the second convex ring 311 is plugged into the middle through hole 11 from top to bottom, so that the quantitative disk 31 can rotate relative to the warehouse body 10 .

[0065] The impeller 32 is located on the upper side of the quantitative disk 31, that is, on the side of the quantitative disk 31 away from the bottom wall of the warehouse body 10, and the impeller 32 is fixedly connected to the quantitative disk 31, so that when the quantitative disk 31 rotates, the impeller 32 can be driven to rotate synchronously.

[0066] Specifically, a third convex ring 312 is provided on the upper surface of the middle part of the quantitative disk 31, and a buckling groove 313 is provided on the inner peripheral wall of the third convex ring 312. The impeller 32 is provided with a buckling hook 321 that buckles with the buckling groove 313, thereby realizing the connection between the quantitative disk 31 and the impeller 32.

[0067] Combine Figure 8 A powder dropping rack 33 and a scraper 34 arranged on the dropping rack are also provided in the hopper body 10. The powder dropping rack 33 is provided with a matching hole 331, so that the powder dropping rack 33 is sleeved on the outer side of the third convex ring 312 through the matching hole 331, and the powder dropping rack 33 is in contact with the inner wall of the hopper body 10, thereby causing the quantitative disk 31 to rotate relative to the powder dropping rack 33.

[0068] The scraper 34 extends into the powder outlet 12 and is made of silica gel. The scraper 34 is mainly used to drop the powder remaining in the quantitative hole 310 to the powder outlet 12 to ensure an accurate powder output.

[0069] Specifically, the powder dropping rack 33 is provided with a slot 330 at a position corresponding to the powder outlet 12 . The slot 330 passes through the powder dropping rack 33 , and the scraper 34 is inserted into the slot 330 , thereby achieving installation of the scraper 34 .

[0070] Each blade of the impeller 32 is fixed with a powder scraping strip 322 , and the powder scraping strip 322 rotates together with the impeller 32 , thereby scraping the milk powder in the bin body 10 flat.

[0071] Combine Figure 9 and Figure 10 The transmission mechanism 40 includes a support shaft 41 and a first matching piece 42 and a second matching piece 43 that are matched with the support shaft 41 .

[0072] The warehouse door 20 is provided with a first fitting portion 24, and the quantitative disk 31 of the quantitative stirrer 30 is provided with a second fitting portion 35. When the support shaft 41 rotates forward, the first fitting piece 42 abuts against the first fitting portion 24, and the second fitting piece 43 and the second fitting portion 35 can slide with each other, thereby allowing the warehouse door 20 to rotate relative to the warehouse body 10 along with the support shaft 41, while the quantitative stirrer 30 remains stationary relative to the warehouse body 10.

[0073] When the support shaft 41 is reversed, the second fitting member 43 abuts against the second fitting portion 35, and the first fitting member 42 and the first fitting portion 24 can slide against each other, thereby allowing the quantitative mixer 30 to rotate relative to the warehouse body 10 along with the support shaft 41, while the warehouse door 20 remains stationary relative to the warehouse body 10.

[0074] Combine Figures 11 to 15Specifically, the support shaft 41 is generally cylindrical and includes a first bracket 410, a second bracket 411, and a third bracket 412, which are connected in sequence. The first bracket 410 is provided with a connection hole for connecting to the output shaft of the driving source 50 through the connection hole. A first cavity with a side opening is formed between the second bracket 411 and the first bracket 410, and a second cavity with a side opening is formed between the second bracket 411 and the third bracket 412.

[0075] A first pin shaft 44 and a first fixing portion 413 are provided in the first cavity. The first matching piece 42 can be rotatably sleeved on the first pin shaft 44, thereby being rotatably connected to the support shaft 41. The first elastic piece 46 is connected to the first fixing portion 413 and the first matching piece 42, so that the first matching piece 42 extends out of the outer peripheral surface of the support shaft 41.

[0076] Therefore, when the support shaft 41 rotates forward, due to the elastic force of the first elastic member 46 on the first matching member 42, the first matching member 42 extends out of the outer peripheral surface of the support shaft 41, thereby abutting against the first matching portion 24 provided on the warehouse door 20, to drive the warehouse door 20 to rotate. When the support shaft 41 is reversed, the first matching member 42 will slide and abut when passing through the first matching portion 24, so that the first matching member 42 retracts into the first cavity and causes the first elastic member 46 to undergo elastic deformation. After the first matching member 42 passes through the first matching portion 24, the first elastic member 46 rebounds so that the first matching member 42 extends out of the outer peripheral surface of the support shaft 41 again, thereby preventing the warehouse door 20 from rotating when the support shaft 41 is reversed, thereby keeping the warehouse door 20 and the warehouse body 10 relatively stationary.

[0077] Among them, the first fixing part 413 can be a cylindrical structure arranged on the first bracket 410 or the second bracket 411, the first matching part 42 is provided with a first connecting column 422, and the first elastic part 46 can be a spring, whose two ends are respectively connected to the first fixing part 413 and the first connecting column 422.

[0078] In addition, due to the force generated by the first elastic member 46 on the first mating member 42, the first mating member 42 will cause radial shear stress on the first pin shaft 44. For this reason, a first waist-shaped hole 415 is also provided on the inner wall of the first cavity, that is, a first waist-shaped hole 415 is provided on the first bracket 410 or the second bracket 411. The length extension direction of the first waist-shaped hole 415 is arc-shaped, and the center of the circle is located on the axis of the first pin shaft 44. The first connecting column 422 extends into the first waist-shaped hole 415 and can slide along the length extension direction of the first waist-shaped hole 415.

[0079] The first mating member 42 has a first sliding surface 420 and a first stop surface 421 relative to each other. The first mating portion 24 can be disposed on the inner peripheral wall of the through-hole 21 of the door 20. The first mating portion 24 has a first guide sliding surface 240 and a first abutting surface 241 relative to each other. Thus, when the support shaft 41 rotates forward, the first stop surface 421 abuts against the first abutting surface 241. When the support shaft 41 rotates backward, the first sliding surface 420 can slide relative to the first guide sliding surface 240, forcing the first mating member 42 to rotate relative to the support shaft 41, causing the first elastic member 46 to undergo elastic deformation.

[0080] In order to reduce the friction between the first sliding surface 420 and the first guide sliding surface 240 when they slide relative to each other, so as to ensure that the warehouse door 20 is stationary relative to the warehouse body 10, at least one of the first sliding surface 420 and the first guide sliding surface 240 can be set as an arc surface, for example, the first sliding surface 420 can be set as an arc surface.

[0081] A second pin shaft 45 and a second fixing portion 414 are provided in the second cavity. The second fitting member 43 is rotatably sleeved on the second pin shaft 45 . The second elastic member 47 is connected between the second fixing portion 414 and the second fitting member 43 so that the second fitting member 43 extends out of the outer circumference of the support shaft 41 .

[0082] Therefore, when the support shaft 41 reverses, due to the elastic force of the second elastic member 47 on the second fitting member 43, the second fitting member 43 extends out of the outer peripheral surface of the support shaft 41, thereby abutting against the second fitting portion 35 provided on the quantitative disk 31, so as to drive the quantitative disk 31 and the impeller 32 to rotate. When the support shaft 41 rotates forward, the second fitting member 43 will slide and abut when passing through the second fitting portion 35, so that the second fitting member 43 retracts into the second cavity and causes the second elastic member 47 to undergo elastic deformation. After the second fitting member 43 passes through the second fitting portion 35, the second elastic member 47 rebounds so that the second fitting member 43 extends out of the outer peripheral surface of the support shaft 41 again, thereby preventing the quantitative disk 31 from rotating when the support shaft 41 rotates forward, and keeping the quantitative disk 31 and the impeller 32 stationary relative to the warehouse body 10.

[0083] Among them, the second fixing part 414 can be a cylindrical structure arranged on the second bracket 411 or the third bracket 412, the second matching part 43 is provided with a second connecting column 432, and the second elastic part 47 can be a spring, whose two ends are respectively connected to the second fixing part 414 and the second connecting column 432.

[0084] In addition, due to the force exerted by the second elastic member 47 on the second mating member 43, the second mating member 43 will cause radial shear stress on the second pin shaft 45. For this reason, a second waist-shaped hole 416 is also provided on the inner wall of the second cavity, that is, a second waist-shaped hole 416 is provided on the second bracket 411 or the third bracket 412. The length extension direction of the second waist-shaped hole 416 is arc-shaped, and the center of the circle is located on the axis of the second pin shaft 45. The second connecting column 432 extends into the first waist-shaped hole 415 and can slide along the length extension direction of the first waist-shaped hole 415.

[0085] The second engaging member 43 has a second sliding surface 430 and a second stop surface 431 facing each other. The second engaging portion 35 is disposed on the inner circumferential wall of the second protruding ring 311 of the dosing disc 31. The second engaging portion 35 has a second guiding sliding surface 350 and a second abutting surface 351 facing each other. When the fulcrum 41 rotates in the reverse direction, the second stop surface 431 abuts against the second abutting surface 351. When the fulcrum 41 rotates in the forward direction, the second sliding surface 430 can slide relative to the second guiding sliding surface 350, forcing the second engaging member 43 to rotate relative to the fulcrum 41, causing the second elastic member 47 to elastically deform.

[0086] In order to reduce the friction force when the second sliding surface 430 and the second guide sliding surface 350 slide relative to each other, so as to ensure that the quantitative disk 31 is stationary relative to the warehouse body 10, at least one of the second sliding surface 430 and the second guide sliding surface 350 is set to a circular arc surface, for example, the second sliding surface 430 is set to a circular arc surface.

[0087] In addition, a sensing member 60 is provided on the outer side of the bottom wall of the silo body 10, and an identification portion 417 is provided on the transmission mechanism 40. When the sensing member 60 is facing the identification portion 417, a sensing signal can be emitted to facilitate accurate control and positioning of the rotation angle of the driving source 50, thereby ensuring that the powder dropout port 23 of the silo door 20 is accurately aligned with the powder outlet port 12 of the silo body 10, and ensuring that the quantitative hole 310 on the quantitative disk 31 is accurately aligned with the powder dropout port 23.

[0088] For example, in this embodiment, the sensing member 60 may be a micro switch, and the identification portion 417 may be a protrusion arranged on the outer peripheral surface of the first bracket 410 of the support shaft 41, so that when the support shaft 41 rotates, the protrusion can trigger the micro switch when passing through the micro switch, and the micro switch will send a sensing signal accordingly.

[0089] In order to ensure that the warehouse body 10 remains dry and the milk powder in the warehouse body 10 is stored in a dry environment to avoid deterioration due to long-term contact with air, a vacuum pipe 14 is also provided on the peripheral wall of the warehouse body 10. The vacuum pipe 14 is connected to the inner cavity of the warehouse body 10, and is connected to a vacuum pump through the vacuum pipe 14 to extract the air in the warehouse body 10 and keep it dry.

[0090] In addition, an embodiment of the present invention further provides a powder making machine, which includes the powder storage bin of the above embodiment and thus also has corresponding beneficial effects.

[0091] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A powder storage bin, characterized in that: include: A silo (10), wherein the bottom wall of the silo (10) is provided with a powder outlet (12); A bin door (20) is located outside the bottom wall of the bin body (10); A quantitative stirrer (30) is located in the bin body (10); a transmission mechanism (40) passing through the bottom wall of the bin door (20) and configured to selectively drive the quantitative stirrer (30) or the bin door (20); when the transmission mechanism (40) rotates forward, the bin door (20) can be driven to rotate; and when the transmission mechanism (40) rotates reversely, the quantitative stirrer (30) can be driven to rotate; The transmission mechanism (40) includes a support shaft (41) and a first matching piece (42) and a second matching piece (43) matching with the support shaft (41); The chamber door (20) is provided with a first matching portion (24), and the quantitative stirrer (30) is provided with a second matching portion (35). When the support shaft (41) rotates forward, the first matching piece (42) abuts against the first matching portion (24), and the second matching piece (43) and the second matching portion (35) are capable of sliding with each other. When the support shaft (41) is reversed, the second fitting member (43) abuts against the second fitting portion (35), and the first fitting member (42) and the first fitting portion (24) are able to slide relative to each other; The support shaft (41) is formed with a first cavity, a first pin shaft (44) and a first fixing portion (413) are provided in the first cavity, the first matching piece (42) is rotatably sleeved on the first pin shaft (44), and a first elastic piece (46) is connected to the first fixing portion (413) and the first matching piece (42) so that the first matching piece (42) extends out of the outer peripheral surface of the support shaft (41); The support shaft (41) is formed with a second cavity, in which a second pin shaft (45) and a second fixing portion (414) are provided. The second matching piece (43) is rotatably sleeved on the second pin shaft (45). The second elastic piece (47) is connected between the second fixing portion (414) and the second matching piece (43) so that the second matching piece (43) extends out of the outer peripheral surface of the support shaft (41).

2. The powder storage bin according to claim 1, characterized in that: The first fitting member (42) is rotatably connected to the support shaft (41), and the first fitting member (42) has a first sliding surface (420) and a first stop surface (421) that are opposite to each other, and the first fitting portion (24) has a first guiding sliding surface (240) and a first abutting surface (241) that are opposite to each other; When the support shaft (41) rotates forward, the first stop surface (421) abuts against the first abutting surface (241); When the support shaft (41) is reversed, the first sliding surface (420) can slide relative to the first guide sliding surface (240) to force the first matching member (42) to rotate relative to the support shaft (41).

3. The powder storage bin according to claim 2, characterized in that: At least one of the first sliding surface (420) and the first guide sliding surface (240) is an arc surface.

4. The powder storage bin according to claim 1, characterized in that: The second fitting member (43) is rotatably connected to the support shaft (41), and the second fitting member (43) has a second sliding surface (430) and a second stop surface (431) that are opposite to each other, and the second fitting portion (35) has a second guiding sliding surface (350) and a second abutting surface (351) that are opposite to each other; When the support shaft (41) is reversed, the second stop surface (431) abuts against the second abutting surface (351); When the support shaft (41) rotates forward, the second sliding surface (430) can slide relative to the second guide sliding surface (350) to force the second fitting member (43) to rotate relative to the support shaft (41).

5. The powder storage bin according to claim 4, characterized in that: At least one of the second sliding surface (430) and the second guide sliding surface (350) is an arc surface.

6. The powder storage bin according to claim 1, characterized in that: A sensing element (60) is further provided on the outer side of the bottom wall of the warehouse body (10), and the transmission mechanism (40) is provided with an identification portion (417). When the sensing element (60) is facing the identification portion (417), a sensing signal can be emitted.

7. A powder making machine, characterized in that: The invention comprises the powder storage bin according to any one of claims 1 to 6.

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